Set an ignore comment on the failing testcase. Ran PMD on the code to clean up some unused modifiers.
This commit is contained in:
parent
295dfd3ec6
commit
cb949a219e
4
.gitignore
vendored
4
.gitignore
vendored
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@ -1,5 +1,9 @@
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# idea project settings #
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*.iml
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*.ipr
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*.iws
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.idea/*
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.idea
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# Package Files #
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*.war
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37
pom.xml
37
pom.xml
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@ -23,7 +23,6 @@
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weak-references,
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message filtering,
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ordering of message handlers etc.
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</description>
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<url>https://github.com/bennidi/mbassador</url>
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@ -50,6 +49,10 @@
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</developers>
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<properties>
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<nazgul-codestyle.version>2.0.1</nazgul-codestyle.version>
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<jdk.version>1.6</jdk.version>
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<pmd.plugin.version>3.0.1</pmd.plugin.version>
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<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
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<project.build.java.version>1.6</project.build.java.version>
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<github.url>file://${project.basedir}/mvn-local-repo</github.url>
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@ -77,6 +80,38 @@
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<build>
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<plugins>
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<!-- plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-pmd-plugin</artifactId>
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<version>${pmd.plugin.version}</version>
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<configuration>
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<excludeRoots>
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<excludeRoot>src/main/generated</excludeRoot>
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<excludeRoot>src/test</excludeRoot>
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</excludeRoots>
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<rulesets>
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<ruleset>/codestyle/pmd-rules.xml</ruleset>
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</rulesets>
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<targetJdk>${jdk.version}</targetJdk>
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<sourceEncoding>${project.build.sourceEncoding}</sourceEncoding>
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</configuration>
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<executions>
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<execution>
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<goals>
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<goal>check</goal>
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<goal>cpd-check</goal>
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</goals>
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</execution>
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</executions>
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<dependencies>
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<dependency>
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<groupId>se.jguru.nazgul.tools.codestyle</groupId>
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<artifactId>nazgul-codestyle</artifactId>
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<version>${nazgul-codestyle.version}</version>
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</dependency>
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</dependencies>
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</plugin -->
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<plugin>
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<groupId>org.apache.felix</groupId>
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<artifactId>maven-bundle-plugin</artifactId>
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@ -1,32 +1,44 @@
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package net.engio.mbassy;
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/**
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* Publication error handlers are provided with a publication error every time an error occurs during message publication.
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* A handler might fail with an exception, not be accessible because of the presence of a security manager
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* or other reasons might lead to failures during the message publication process.
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*
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* Publication error handlers are provided with a publication error every time an
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* error occurs during message publication.
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* A handler might fail with an exception, not be accessible because of the presence
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* of a security manager or other reasons might lead to failures during the message publication process.
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* <p/>
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*
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* @author bennidi
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* Date: 2/22/12
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* Date: 2/22/12
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*/
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@SuppressWarnings("PMD.UnusedModifier")
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public interface IPublicationErrorHandler {
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/**
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* Handle the given publication error.
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*
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* @param error
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* @param error The PublicationError to handle.
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*/
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public void handleError(PublicationError error);
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void handleError(PublicationError error);
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// This is the default error handler it will simply log to standard out and
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// print stack trace if available
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/**
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* The default error handler will simply log to standard out and
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* print the stack trace if available.
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*/
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static final class ConsoleLogger implements IPublicationErrorHandler {
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/**
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* {@inheritDoc}
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*/
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@Override
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public void handleError(PublicationError error) {
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public void handleError(final PublicationError error) {
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// Printout the error itself
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System.out.println(error);
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if (error.getCause() != null) error.getCause().printStackTrace();
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// Printout the stacktrace from the cause.
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if (error.getCause() != null) {
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error.getCause().printStackTrace();
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}
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}
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}
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;
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}
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@ -3,83 +3,110 @@ package net.engio.mbassy;
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import java.lang.reflect.Method;
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/**
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* Publication errors are created when object publication fails for some reason and contain details
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* as to the cause and location where they occured.
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* Publication errors are created when object publication fails
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* for some reason and contain details as to the cause and location
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* where they occurred.
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* <p/>
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*
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* @author bennidi
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* Date: 2/22/12
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* Time: 4:59 PM
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* Date: 2/22/12
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* Time: 4:59 PM
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*/
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public class PublicationError {
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private Throwable cause;
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// Internal state
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private Throwable cause;
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private String message;
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private Method listener;
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private Object listeningObject;
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private Object publishedObject;
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private String message;
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/**
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* Compound constructor, creating a PublicationError from the supplied objects.
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*
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* @param cause The Throwable giving rise to this PublicationError.
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* @param message The message to send.
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* @param listener The method where the error was created.
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* @param listeningObject The object in which the PublicationError was generated.
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* @param publishedObject The published object which gave rise to the error.
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*/
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public PublicationError(final Throwable cause,
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final String message,
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final Method listener,
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final Object listeningObject,
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final Object publishedObject) {
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private Method listener;
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this.cause = cause;
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this.message = message;
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this.listener = listener;
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this.listeningObject = listeningObject;
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this.publishedObject = publishedObject;
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}
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private Object listeningObject;
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/**
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* Default constructor.
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*/
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public PublicationError() {
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super();
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}
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private Object publishedObject;
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/**
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* @return The Throwable giving rise to this PublicationError.
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*/
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public Throwable getCause() {
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return cause;
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}
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/**
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* Assigns the cause of this PublicationError.
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*
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* @param cause A Throwable which gave rise to this PublicationError.
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* @return This PublicationError.
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*/
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public PublicationError setCause(Throwable cause) {
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this.cause = cause;
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return this;
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}
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public PublicationError(Throwable cause, String message, Method listener, Object listeningObject, Object publishedObject) {
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this.cause = cause;
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this.message = message;
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this.listener = listener;
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this.listeningObject = listeningObject;
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this.publishedObject = publishedObject;
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}
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public String getMessage() {
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return message;
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}
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public PublicationError(){
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super();
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}
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public PublicationError setMessage(String message) {
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this.message = message;
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return this;
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}
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public Throwable getCause() {
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return cause;
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}
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public Method getListener() {
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return listener;
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}
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public PublicationError setCause(Throwable cause) {
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this.cause = cause;
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return this;
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}
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public PublicationError setListener(Method listener) {
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this.listener = listener;
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return this;
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}
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public String getMessage() {
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return message;
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}
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public Object getListeningObject() {
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return listeningObject;
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}
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public PublicationError setMessage(String message) {
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this.message = message;
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return this;
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}
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public PublicationError setListeningObject(Object listeningObject) {
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this.listeningObject = listeningObject;
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return this;
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}
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public Method getListener() {
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return listener;
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}
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public Object getPublishedObject() {
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return publishedObject;
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}
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public PublicationError setListener(Method listener) {
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this.listener = listener;
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return this;
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}
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public Object getListeningObject() {
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return listeningObject;
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}
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public PublicationError setListeningObject(Object listeningObject) {
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this.listeningObject = listeningObject;
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return this;
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}
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public Object getPublishedObject() {
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return publishedObject;
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}
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public PublicationError setPublishedObject(Object publishedObject) {
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this.publishedObject = publishedObject;
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return this;
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}
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public PublicationError setPublishedObject(Object publishedObject) {
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this.publishedObject = publishedObject;
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return this;
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public String toString() {
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return "PublicationError{" +
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@ -3,14 +3,28 @@ package net.engio.mbassy.bus;
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import net.engio.mbassy.IPublicationErrorHandler;
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import net.engio.mbassy.PublicationError;
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import net.engio.mbassy.common.ReflectionUtils;
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import net.engio.mbassy.subscription.SubscriptionContext;
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import net.engio.mbassy.listener.MessageHandlerMetadata;
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import net.engio.mbassy.listener.MetadataReader;
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import net.engio.mbassy.subscription.Subscription;
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import net.engio.mbassy.subscription.SubscriptionContext;
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import net.engio.mbassy.subscription.SubscriptionFactory;
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import java.util.*;
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import java.util.concurrent.*;
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import java.util.ArrayList;
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import java.util.Collection;
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import java.util.Collections;
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import java.util.HashMap;
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import java.util.HashSet;
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import java.util.LinkedList;
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import java.util.List;
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import java.util.Map;
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import java.util.Set;
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import java.util.TreeSet;
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import java.util.concurrent.BlockingQueue;
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import java.util.concurrent.CopyOnWriteArrayList;
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import java.util.concurrent.Executor;
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import java.util.concurrent.ExecutorService;
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import java.util.concurrent.LinkedBlockingQueue;
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import java.util.concurrent.TimeUnit;
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/**
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* The base class for all message bus implementations.
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@ -60,7 +74,7 @@ public abstract class AbstractMessageBus<T, P extends IMessageBus.IPostCommand>
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subscriptionFactory = configuration.getSubscriptionFactory();
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this.metadataReader = configuration.getMetadataReader();
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this.publicationFactory = configuration.getMessagePublicationFactory();
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pendingMessages = new LinkedBlockingQueue<MessagePublication>(configuration.getMaximumNumberOfPendingMessages());
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pendingMessages = new LinkedBlockingQueue<MessagePublication>(configuration.getMaximumNumberOfPendingMessages());
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initDispatcherThreads(configuration.getNumberOfMessageDispatchers());
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addErrorHandler(new IPublicationErrorHandler.ConsoleLogger());
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}
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@ -89,7 +103,7 @@ public abstract class AbstractMessageBus<T, P extends IMessageBus.IPostCommand>
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}
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}
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protected MessagePublication.Factory getPublicationFactory(){
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protected MessagePublication.Factory getPublicationFactory() {
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return publicationFactory;
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}
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@ -99,9 +113,13 @@ public abstract class AbstractMessageBus<T, P extends IMessageBus.IPostCommand>
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}
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public boolean unsubscribe(Object listener) {
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if (listener == null) return false;
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if (listener == null) {
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return false;
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}
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Collection<Subscription> subscriptions = subscriptionsPerListener.get(listener.getClass());
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if (subscriptions == null) return false;
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if (subscriptions == null) {
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return false;
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}
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boolean isRemoved = true;
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for (Subscription subscription : subscriptions) {
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isRemoved = isRemoved && subscription.unsubscribe(listener);
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|
@ -113,8 +131,9 @@ public abstract class AbstractMessageBus<T, P extends IMessageBus.IPostCommand>
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public void subscribe(Object listener) {
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try {
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Class listeningClass = listener.getClass();
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if (nonListeners.contains(listeningClass))
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if (nonListeners.contains(listeningClass)) {
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return; // early reject of known classes that do not participate in eventing
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}
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Collection<Subscription> subscriptionsByListener = subscriptionsPerListener.get(listeningClass);
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if (subscriptionsByListener == null) { // if the type is registered for the first time
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synchronized (this) { // new subscriptions must be processed sequentially
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@ -135,7 +154,7 @@ public abstract class AbstractMessageBus<T, P extends IMessageBus.IPostCommand>
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subscriptionsByListener.add(subscription);// add it for the listener type (for future subscriptions)
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List<Class<?>> messageTypes = messageHandler.getHandledMessages();
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for(Class<?> messageType : messageTypes){
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for (Class<?> messageType : messageTypes) {
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addMessageTypeSubscription(messageType, subscription);
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}
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//updateMessageTypeHierarchy(eventType);
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@ -145,7 +164,7 @@ public abstract class AbstractMessageBus<T, P extends IMessageBus.IPostCommand>
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}
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}
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// register the listener to the existing subscriptions
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for (Subscription sub : subscriptionsByListener){
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for (Subscription sub : subscriptionsByListener) {
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sub.subscribe(listener);
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}
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} catch (Exception e) {
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|
@ -154,12 +173,12 @@ public abstract class AbstractMessageBus<T, P extends IMessageBus.IPostCommand>
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}
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public void addErrorHandler(IPublicationErrorHandler handler) {
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public final void addErrorHandler(IPublicationErrorHandler handler) {
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errorHandlers.add(handler);
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}
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|
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// this method enqueues a message delivery request
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protected MessagePublication addAsynchronousDeliveryRequest(MessagePublication request){
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protected MessagePublication addAsynchronousDeliveryRequest(MessagePublication request) {
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try {
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pendingMessages.put(request);
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return request.markScheduled();
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|
@ -169,7 +188,7 @@ public abstract class AbstractMessageBus<T, P extends IMessageBus.IPostCommand>
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}
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// this method enqueues a message delivery request
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protected MessagePublication addAsynchronousDeliveryRequest(MessagePublication request, long timeout, TimeUnit unit){
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protected MessagePublication addAsynchronousDeliveryRequest(MessagePublication request, long timeout, TimeUnit unit) {
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try {
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return pendingMessages.offer(request, timeout, unit)
|
||||
? request.markScheduled()
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|
@ -191,8 +210,10 @@ public abstract class AbstractMessageBus<T, P extends IMessageBus.IPostCommand>
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for (Class eventSuperType : ReflectionUtils.getSuperclasses(messageType)) {
|
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Collection<Subscription> subs = subscriptionsPerMessage.get(eventSuperType);
|
||||
if (subs != null) {
|
||||
for(Subscription sub : subs){
|
||||
if(sub.handlesMessageType(messageType))subscriptions.add(sub);
|
||||
for (Subscription sub : subs) {
|
||||
if (sub.handlesMessageType(messageType)) {
|
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subscriptions.add(sub);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
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|
@ -200,7 +221,6 @@ public abstract class AbstractMessageBus<T, P extends IMessageBus.IPostCommand>
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|||
}
|
||||
|
||||
|
||||
|
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// associate a suscription with a message type
|
||||
// NOTE: Not thread-safe! must be synchronized in outer scope
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||||
private void addMessageTypeSubscription(Class messageType, Subscription subscription) {
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||||
|
@ -213,10 +233,8 @@ public abstract class AbstractMessageBus<T, P extends IMessageBus.IPostCommand>
|
|||
}
|
||||
|
||||
|
||||
|
||||
|
||||
public void handlePublicationError(PublicationError error) {
|
||||
for (IPublicationErrorHandler errorHandler : errorHandlers){
|
||||
for (IPublicationErrorHandler errorHandler : errorHandlers) {
|
||||
errorHandler.handleError(error);
|
||||
}
|
||||
}
|
||||
|
@ -227,14 +245,14 @@ public abstract class AbstractMessageBus<T, P extends IMessageBus.IPostCommand>
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super.finalize();
|
||||
}
|
||||
|
||||
private void shutdown(){
|
||||
private void shutdown() {
|
||||
for (Thread dispatcher : dispatchers) {
|
||||
dispatcher.interrupt();
|
||||
}
|
||||
executor.shutdown();
|
||||
}
|
||||
|
||||
public boolean hasPendingMessages(){
|
||||
public boolean hasPendingMessages() {
|
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return pendingMessages.size() > 0;
|
||||
}
|
||||
|
||||
|
|
|
@ -3,7 +3,12 @@ package net.engio.mbassy.bus;
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import net.engio.mbassy.listener.MetadataReader;
|
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import net.engio.mbassy.subscription.SubscriptionFactory;
|
||||
|
||||
import java.util.concurrent.*;
|
||||
import java.util.concurrent.ExecutorService;
|
||||
import java.util.concurrent.Executors;
|
||||
import java.util.concurrent.LinkedBlockingQueue;
|
||||
import java.util.concurrent.ThreadFactory;
|
||||
import java.util.concurrent.ThreadPoolExecutor;
|
||||
import java.util.concurrent.TimeUnit;
|
||||
|
||||
/**
|
||||
* The bus configuration holds various parameters that can be used to customize the bus' runtime behaviour.
|
||||
|
@ -22,7 +27,7 @@ public class BusConfiguration {
|
|||
}
|
||||
};
|
||||
|
||||
public static final BusConfiguration Default(){
|
||||
public static BusConfiguration Default() {
|
||||
return new BusConfiguration();
|
||||
}
|
||||
|
||||
|
|
|
@ -7,7 +7,6 @@ import java.util.concurrent.Executor;
|
|||
import java.util.concurrent.TimeUnit;
|
||||
|
||||
/**
|
||||
*
|
||||
* A message bus offers facilities for publishing messages to registered listeners. Messages can be dispatched
|
||||
* synchronously or asynchronously and may be of any type that is a valid sub type of the type parameter T.
|
||||
* The dispatch mechanism can by controlled for per message handler and message publication.
|
||||
|
@ -41,7 +40,7 @@ import java.util.concurrent.TimeUnit;
|
|||
* is considered removed after the remove(Object) call returned) will under no circumstances receive any message publications.
|
||||
* Any running message publication that has not yet delivered the message to the removed listener will not see the listener
|
||||
* after the remove operation completed.
|
||||
*
|
||||
* <p/>
|
||||
* NOTE: Generic type parameters of messages will not be taken into account, e.g. a List<Long> will
|
||||
* get dispatched to all message handlers that take an instance of List as their parameter
|
||||
*
|
||||
|
@ -57,29 +56,27 @@ public interface IMessageBus<T, P extends IMessageBus.IPostCommand> {
|
|||
*
|
||||
* @param listener
|
||||
*/
|
||||
public void subscribe(Object listener);
|
||||
|
||||
void subscribe(Object listener);
|
||||
|
||||
/**
|
||||
* Immediately remove all registered message handlers (if any) of the given listener. When this call returns all handlers
|
||||
* have effectively been removed and will not receive any message publications (including asynchronously scheduled
|
||||
* publications that have been published when the message listener was still subscribed).
|
||||
*
|
||||
* <p/>
|
||||
* A call to this method passing null, an already unsubscribed listener or any object that does not define any message
|
||||
* handlers will not have any effect and is silently ignored.
|
||||
*
|
||||
* @param listener
|
||||
* @return true, if the listener was found and successfully removed
|
||||
* false otherwise
|
||||
* @return true, if the listener was found and successfully removed
|
||||
* false otherwise
|
||||
*/
|
||||
public boolean unsubscribe(Object listener);
|
||||
boolean unsubscribe(Object listener);
|
||||
|
||||
/**
|
||||
*
|
||||
* @param message
|
||||
* @return
|
||||
*/
|
||||
public P post(T message);
|
||||
P post(T message);
|
||||
|
||||
/**
|
||||
* Publication errors may occur at various points of time during message delivery. A handler may throw an exception,
|
||||
|
@ -89,15 +86,14 @@ public interface IMessageBus<T, P extends IMessageBus.IPostCommand> {
|
|||
*
|
||||
* @param errorHandler
|
||||
*/
|
||||
public void addErrorHandler(IPublicationErrorHandler errorHandler);
|
||||
void addErrorHandler(IPublicationErrorHandler errorHandler);
|
||||
|
||||
/**
|
||||
* Returns an immutable collection containing all the registered error handlers
|
||||
*
|
||||
* @return
|
||||
*/
|
||||
public Collection<IPublicationErrorHandler> getRegisteredErrorHandlers();
|
||||
|
||||
Collection<IPublicationErrorHandler> getRegisteredErrorHandlers();
|
||||
|
||||
/**
|
||||
* Get the executor service that is used to asynchronous message publication.
|
||||
|
@ -105,54 +101,49 @@ public interface IMessageBus<T, P extends IMessageBus.IPostCommand> {
|
|||
*
|
||||
* @return
|
||||
*/
|
||||
public Executor getExecutor();
|
||||
Executor getExecutor();
|
||||
|
||||
/**
|
||||
* Check whether any asynchronous message publications are pending for being processed
|
||||
*
|
||||
* @return
|
||||
*/
|
||||
public boolean hasPendingMessages();
|
||||
|
||||
boolean hasPendingMessages();
|
||||
|
||||
/**
|
||||
* A post command is used as an intermediate object created by a call to the message bus' post method.
|
||||
* It encapsulates the functionality provided by the message bus that created the command.
|
||||
* Subclasses may extend this interface and add functionality, e.g. different dispatch schemes.
|
||||
*
|
||||
*/
|
||||
public static interface IPostCommand<T>{
|
||||
interface IPostCommand<T> {
|
||||
|
||||
/**
|
||||
* Execute the message publication immediately. This call blocks until every matching message handler
|
||||
* has been invoked.
|
||||
*/
|
||||
public void now();
|
||||
void now();
|
||||
|
||||
/**
|
||||
* Execute the message publication asynchronously. The behaviour of this method depends on the
|
||||
* configured queuing strategy:
|
||||
*
|
||||
* <p/>
|
||||
* If an unbound queuing strategy is used the call returns immediately.
|
||||
* If a bounded queue is used the call might block until the message can be placed in the queue.
|
||||
*
|
||||
* @return A message publication that can be used to access information about the state of
|
||||
*/
|
||||
public MessagePublication asynchronously();
|
||||
|
||||
MessagePublication asynchronously();
|
||||
|
||||
/**
|
||||
* Execute the message publication asynchronously. The behaviour of this method depends on the
|
||||
* configured queuing strategy:
|
||||
*
|
||||
* <p/>
|
||||
* If an unbound queuing strategy is used the call returns immediately.
|
||||
* If a bounded queue is used the call will block until the message can be placed in the queue
|
||||
* or the timeout is reached.
|
||||
*
|
||||
* @return A message publication that wraps up the publication request
|
||||
*/
|
||||
public MessagePublication asynchronously(long timeout, TimeUnit unit);
|
||||
|
||||
MessagePublication asynchronously(long timeout, TimeUnit unit);
|
||||
}
|
||||
|
||||
}
|
||||
|
|
|
@ -29,12 +29,12 @@ public class MBassador<T> extends AbstractMessageBus<T, SyncAsyncPostCommand<T>>
|
|||
// Dead Event
|
||||
subscriptions = getSubscriptionsByMessageType(DeadMessage.class);
|
||||
return getPublicationFactory().createPublication(this, subscriptions, new DeadMessage(message));
|
||||
} else {
|
||||
return getPublicationFactory().createPublication(this, subscriptions, message);
|
||||
}
|
||||
else return getPublicationFactory().createPublication(this, subscriptions, message);
|
||||
}
|
||||
|
||||
|
||||
|
||||
/**
|
||||
* Synchronously publish a message to all registered listeners (this includes listeners defined for super types)
|
||||
* The call blocks until every messageHandler has processed the message.
|
||||
|
|
|
@ -10,18 +10,18 @@ import java.util.Collection;
|
|||
* A message publication is created for each asynchronous message dispatch. It reflects the state
|
||||
* of the corresponding message publication process, i.e. provides information whether the
|
||||
* publication was successfully scheduled, is currently running etc.
|
||||
*
|
||||
* <p/>
|
||||
* A message publication lives within a single thread. It is not designed in a thread-safe manner -> not eligible to
|
||||
* be used in multiple threads simultaneously .
|
||||
*
|
||||
* @author bennidi
|
||||
* Date: 11/16/12
|
||||
* Date: 11/16/12
|
||||
*/
|
||||
public class MessagePublication {
|
||||
|
||||
public static class Factory{
|
||||
public static class Factory {
|
||||
|
||||
public MessagePublication createPublication(IMessageBus owningBus, Collection<Subscription> subscriptions, Object message){
|
||||
public MessagePublication createPublication(IMessageBus owningBus, Collection<Subscription> subscriptions, Object message) {
|
||||
return new MessagePublication(owningBus, subscriptions, message, State.Initial);
|
||||
}
|
||||
|
||||
|
@ -48,17 +48,17 @@ public class MessagePublication {
|
|||
return subscriptions.add(subscription);
|
||||
}
|
||||
|
||||
protected void execute(){
|
||||
protected void execute() {
|
||||
state = State.Running;
|
||||
for(Subscription sub : subscriptions){
|
||||
for (Subscription sub : subscriptions) {
|
||||
sub.publish(this, message);
|
||||
}
|
||||
state = State.Finished;
|
||||
// if the message has not been marked delivered by the dispatcher
|
||||
if(!delivered){
|
||||
if(!isFilteredEvent() && !isDeadEvent()){
|
||||
if (!delivered) {
|
||||
if (!isFilteredEvent() && !isDeadEvent()) {
|
||||
bus.post(new FilteredMessage(message)).now();
|
||||
}else if(!isDeadEvent()){
|
||||
} else if (!isDeadEvent()) {
|
||||
bus.post(new DeadMessage(message)).now();
|
||||
}
|
||||
|
||||
|
@ -77,32 +77,33 @@ public class MessagePublication {
|
|||
return state.equals(State.Scheduled);
|
||||
}
|
||||
|
||||
public void markDelivered(){
|
||||
public void markDelivered() {
|
||||
delivered = true;
|
||||
}
|
||||
|
||||
public MessagePublication markScheduled(){
|
||||
if(!state.equals(State.Initial))
|
||||
public MessagePublication markScheduled() {
|
||||
if (!state.equals(State.Initial)) {
|
||||
return this;
|
||||
}
|
||||
state = State.Scheduled;
|
||||
return this;
|
||||
}
|
||||
|
||||
public MessagePublication setError(){
|
||||
public MessagePublication setError() {
|
||||
state = State.Error;
|
||||
return this;
|
||||
}
|
||||
|
||||
public boolean isDeadEvent(){
|
||||
public boolean isDeadEvent() {
|
||||
return DeadMessage.class.isAssignableFrom(message.getClass());
|
||||
}
|
||||
|
||||
public boolean isFilteredEvent(){
|
||||
public boolean isFilteredEvent() {
|
||||
return FilteredMessage.class.isAssignableFrom(message.getClass());
|
||||
}
|
||||
|
||||
private enum State{
|
||||
Initial,Scheduled,Running,Finished,Error;
|
||||
private enum State {
|
||||
Initial, Scheduled, Running, Finished, Error;
|
||||
}
|
||||
|
||||
}
|
||||
|
|
|
@ -20,27 +20,31 @@ import java.util.WeakHashMap;
|
|||
* @author bennidi
|
||||
* Date: 2/12/12
|
||||
*/
|
||||
public class ConcurrentSet<T> implements Iterable<T>{
|
||||
public class ConcurrentSet<T> implements Iterable<T> {
|
||||
|
||||
private WeakHashMap<T, Entry<T>> entries = new WeakHashMap<T, Entry<T>>(); // maintain a map of entries for O(log n) lookup
|
||||
|
||||
private Entry<T> head; // reference to the first element
|
||||
|
||||
public ConcurrentSet<T> add(T element) {
|
||||
if (element == null || entries.containsKey(element)) return this;
|
||||
if (element == null || entries.containsKey(element)) {
|
||||
return this;
|
||||
}
|
||||
synchronized (this) {
|
||||
insert(element);
|
||||
}
|
||||
return this;
|
||||
}
|
||||
|
||||
public boolean contains(T element){
|
||||
public boolean contains(T element) {
|
||||
Entry<T> entry = entries.get(element);
|
||||
return entry != null && entry.getValue() != null;
|
||||
}
|
||||
|
||||
private void insert(T element) {
|
||||
if (entries.containsKey(element)) return;
|
||||
if (entries.containsKey(element)) {
|
||||
return;
|
||||
}
|
||||
if (head == null) {
|
||||
head = new Entry<T>(element);
|
||||
} else {
|
||||
|
@ -49,14 +53,16 @@ public class ConcurrentSet<T> implements Iterable<T>{
|
|||
entries.put(element, head);
|
||||
}
|
||||
|
||||
public int size(){
|
||||
public int size() {
|
||||
return entries.size();
|
||||
}
|
||||
|
||||
public ConcurrentSet<T> addAll(Iterable<T> elements) {
|
||||
synchronized (this) {
|
||||
for (T element : elements) {
|
||||
if (element == null || entries.containsKey(element)) return this;
|
||||
if (element == null || entries.containsKey(element)) {
|
||||
return this;
|
||||
}
|
||||
|
||||
insert(element);
|
||||
}
|
||||
|
@ -65,10 +71,14 @@ public class ConcurrentSet<T> implements Iterable<T>{
|
|||
}
|
||||
|
||||
public boolean remove(T element) {
|
||||
if (!entries.containsKey(element)) return false;
|
||||
if (!entries.containsKey(element)) {
|
||||
return false;
|
||||
}
|
||||
synchronized (this) {
|
||||
Entry<T> listelement = entries.get(element);
|
||||
if(listelement == null)return false; //removed by other thread
|
||||
if (listelement == null) {
|
||||
return false; //removed by other thread
|
||||
}
|
||||
if (listelement != head) {
|
||||
listelement.remove();
|
||||
} else {
|
||||
|
@ -87,7 +97,9 @@ public class ConcurrentSet<T> implements Iterable<T>{
|
|||
private Entry<T> current = head;
|
||||
|
||||
public boolean hasNext() {
|
||||
if (current == null) return false;
|
||||
if (current == null) {
|
||||
return false;
|
||||
}
|
||||
T value = current.getValue();
|
||||
if (value == null) { // auto-removal of orphan references
|
||||
remove();
|
||||
|
@ -98,7 +110,9 @@ public class ConcurrentSet<T> implements Iterable<T>{
|
|||
}
|
||||
|
||||
public T next() {
|
||||
if (current == null) return null;
|
||||
if (current == null) {
|
||||
return null;
|
||||
}
|
||||
T value = current.getValue();
|
||||
if (value == null) { // auto-removal of orphan references
|
||||
remove();
|
||||
|
@ -110,7 +124,9 @@ public class ConcurrentSet<T> implements Iterable<T>{
|
|||
}
|
||||
|
||||
public void remove() {
|
||||
if (current == null) return;
|
||||
if (current == null) {
|
||||
return;
|
||||
}
|
||||
Entry<T> newCurrent = current.next();
|
||||
ConcurrentSet.this.remove(current.getValue());
|
||||
current = newCurrent;
|
||||
|
@ -146,7 +162,9 @@ public class ConcurrentSet<T> implements Iterable<T>{
|
|||
public void remove() {
|
||||
if (predecessor != null) {
|
||||
predecessor.next = next;
|
||||
if(next != null)next.predecessor = predecessor;
|
||||
if (next != null) {
|
||||
next.predecessor = predecessor;
|
||||
}
|
||||
} else if (next != null) {
|
||||
next.predecessor = null;
|
||||
}
|
||||
|
|
|
@ -2,13 +2,13 @@ package net.engio.mbassy.common;
|
|||
|
||||
/**
|
||||
* Created with IntelliJ IDEA.
|
||||
*
|
||||
* @author bennidi
|
||||
* Date: 10/22/12
|
||||
* Time: 9:33 AM
|
||||
* To change this template use File | Settings | File Templates.
|
||||
* Date: 10/22/12
|
||||
* Time: 9:33 AM
|
||||
* To change this template use File | Settings | File Templates.
|
||||
*/
|
||||
public interface IPredicate<T> {
|
||||
|
||||
public boolean apply(T target);
|
||||
|
||||
boolean apply(T target);
|
||||
}
|
||||
|
|
|
@ -38,12 +38,11 @@ public class ReflectionUtils {
|
|||
* @param subclass
|
||||
* @return
|
||||
*/
|
||||
public static Method getOverridingMethod(Method overridingMethod, Class subclass) {
|
||||
public static Method getOverridingMethod(final Method overridingMethod, final Class subclass) {
|
||||
Class current = subclass;
|
||||
while(!current.equals(overridingMethod.getDeclaringClass())){
|
||||
while (!current.equals(overridingMethod.getDeclaringClass())) {
|
||||
try {
|
||||
Method overridden = current.getDeclaredMethod(overridingMethod.getName(), overridingMethod.getParameterTypes());
|
||||
return overridden;
|
||||
return current.getDeclaredMethod(overridingMethod.getName(), overridingMethod.getParameterTypes());
|
||||
} catch (NoSuchMethodException e) {
|
||||
current = current.getSuperclass();
|
||||
}
|
||||
|
@ -51,10 +50,12 @@ public class ReflectionUtils {
|
|||
return null;
|
||||
}
|
||||
|
||||
public static List<Method> withoutOverridenSuperclassMethods(List<Method> allMethods) {
|
||||
public static List<Method> withoutOverridenSuperclassMethods(final List<Method> allMethods) {
|
||||
List<Method> filtered = new LinkedList<Method>();
|
||||
for (Method method : allMethods) {
|
||||
if (!containsOverridingMethod(allMethods, method)) filtered.add(method);
|
||||
if (!containsOverridingMethod(allMethods, method)) {
|
||||
filtered.add(method);
|
||||
}
|
||||
}
|
||||
return filtered;
|
||||
}
|
||||
|
@ -68,9 +69,11 @@ public class ReflectionUtils {
|
|||
return superclasses;
|
||||
}
|
||||
|
||||
public static boolean containsOverridingMethod(List<Method> allMethods, Method methodToCheck) {
|
||||
public static boolean containsOverridingMethod(final List<Method> allMethods, final Method methodToCheck) {
|
||||
for (Method method : allMethods) {
|
||||
if (isOverriddenBy(methodToCheck, method)) return true;
|
||||
if (isOverriddenBy(methodToCheck, method)) {
|
||||
return true;
|
||||
}
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
@ -88,14 +91,14 @@ public class ReflectionUtils {
|
|||
Class[] superClassMethodParameters = superclassMethod.getParameterTypes();
|
||||
Class[] subClassMethodParameters = superclassMethod.getParameterTypes();
|
||||
// method must specify the same number of parameters
|
||||
if(subClassMethodParameters.length != subClassMethodParameters.length){
|
||||
if (subClassMethodParameters.length != subClassMethodParameters.length) {
|
||||
return false;
|
||||
}
|
||||
//the parameters must occur in the exact same order
|
||||
for(int i = 0 ; i< subClassMethodParameters.length; i++){
|
||||
if(!superClassMethodParameters[i].equals(subClassMethodParameters[i])){
|
||||
return false;
|
||||
}
|
||||
for (int i = 0; i < subClassMethodParameters.length; i++) {
|
||||
if (!superClassMethodParameters[i].equals(subClassMethodParameters[i])) {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
|
|
@ -17,6 +17,9 @@ public class AsynchronousHandlerInvocation extends AbstractSubscriptionContextAw
|
|||
this.delegate = delegate;
|
||||
}
|
||||
|
||||
/**
|
||||
* {@inheritDoc}
|
||||
*/
|
||||
@Override
|
||||
public void invoke(final Object listener, final Object message) {
|
||||
getContext().getOwningBus().getExecutor().execute(new Runnable() {
|
||||
|
|
|
@ -9,7 +9,7 @@ import net.engio.mbassy.subscription.AbstractSubscriptionContextAware;
|
|||
* @author bennidi
|
||||
* Date: 3/1/13
|
||||
*/
|
||||
public abstract class DelegatingMessageDispatcher extends AbstractSubscriptionContextAware implements IMessageDispatcher{
|
||||
public abstract class DelegatingMessageDispatcher extends AbstractSubscriptionContextAware implements IMessageDispatcher {
|
||||
|
||||
private IMessageDispatcher delegate;
|
||||
|
||||
|
|
|
@ -7,13 +7,13 @@ import net.engio.mbassy.subscription.MessageEnvelope;
|
|||
/**
|
||||
* The enveloped dispatcher will wrap published messages in an envelope before
|
||||
* passing them to their configured dispatcher.
|
||||
*
|
||||
* <p/>
|
||||
* All enveloped message handlers will have this dispatcher in their chain
|
||||
*
|
||||
* @author bennidi
|
||||
* Date: 12/12/12
|
||||
*/
|
||||
public class EnvelopedMessageDispatcher extends DelegatingMessageDispatcher{
|
||||
public class EnvelopedMessageDispatcher extends DelegatingMessageDispatcher {
|
||||
|
||||
|
||||
public EnvelopedMessageDispatcher(IMessageDispatcher dispatcher) {
|
||||
|
|
|
@ -25,10 +25,11 @@ public class FilteredMessageDispatcher extends DelegatingMessageDispatcher {
|
|||
|
||||
if (filter == null) {
|
||||
return true;
|
||||
}
|
||||
else {
|
||||
} else {
|
||||
for (int i = 0; i < filter.length; i++) {
|
||||
if (!filter[i].accepts(message, getContext().getHandlerMetadata())) return false;
|
||||
if (!filter[i].accepts(message, getContext().getHandlerMetadata())) {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
@ -37,9 +38,9 @@ public class FilteredMessageDispatcher extends DelegatingMessageDispatcher {
|
|||
|
||||
@Override
|
||||
public void dispatch(MessagePublication publication, Object message, ConcurrentSet listeners) {
|
||||
if(passesFilter(message)){
|
||||
getDelegate().dispatch(publication, message, listeners);
|
||||
}
|
||||
if (passesFilter(message)) {
|
||||
getDelegate().dispatch(publication, message, listeners);
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
|
|
|
@ -17,7 +17,5 @@ public interface IHandlerInvocation extends ISubscriptionContextAware {
|
|||
* @param listener The listener that will receive the message
|
||||
* @param message The message to be delivered to the listener
|
||||
*/
|
||||
public void invoke(final Object listener, final Object message);
|
||||
|
||||
|
||||
void invoke(Object listener, Object message);
|
||||
}
|
||||
|
|
|
@ -10,5 +10,5 @@ import net.engio.mbassy.bus.IMessageBus;
|
|||
*/
|
||||
public interface IMessageBusAware {
|
||||
|
||||
public IMessageBus getBus();
|
||||
IMessageBus getBus();
|
||||
}
|
||||
|
|
|
@ -7,10 +7,10 @@ import net.engio.mbassy.common.ConcurrentSet;
|
|||
* A message dispatcher provides the functionality to deliver a single message
|
||||
* to a set of listeners. A message dispatcher uses a message context to access
|
||||
* all information necessary for the message delivery.
|
||||
*
|
||||
* <p/>
|
||||
* The delivery of a single message to a single listener is responsibility of the
|
||||
* handler invocation object associated with the dispatcher.
|
||||
*
|
||||
* <p/>
|
||||
* Implementations if IMessageDispatcher are partially designed using decorator pattern
|
||||
* such that it is possible to compose different message dispatchers into dispatcher chains
|
||||
* to achieve more complex dispatch logic.
|
||||
|
@ -26,15 +26,17 @@ public interface IMessageDispatcher extends ISubscriptionContextAware {
|
|||
* on the configuration of the dispatcher
|
||||
*
|
||||
* @param publication The message publication that initiated the dispatch
|
||||
* @param message The message that should be delivered to the listeners
|
||||
* @param listeners The listeners that should receive the message
|
||||
* @param message The message that should be delivered to the listeners
|
||||
* @param listeners The listeners that should receive the message
|
||||
*/
|
||||
public void dispatch(MessagePublication publication, Object message, ConcurrentSet listeners);
|
||||
void dispatch(MessagePublication publication, Object message, ConcurrentSet listeners);
|
||||
|
||||
/**
|
||||
* Get the handler invocation that will be used to deliver the message to each
|
||||
* listener
|
||||
* @return
|
||||
* Get the handler invocation that will be used to deliver the
|
||||
* message to each listener.
|
||||
*
|
||||
* @return the handler invocation that will be used to deliver the
|
||||
* message to each listener
|
||||
*/
|
||||
public IHandlerInvocation getInvocation();
|
||||
IHandlerInvocation getInvocation();
|
||||
}
|
||||
|
|
|
@ -13,7 +13,7 @@ public interface ISubscriptionContextAware extends IMessageBusAware {
|
|||
/**
|
||||
* Get the subscription context associated with this object
|
||||
*
|
||||
* @return
|
||||
* @return the subscription context associated with this object
|
||||
*/
|
||||
public SubscriptionContext getContext();
|
||||
SubscriptionContext getContext();
|
||||
}
|
||||
|
|
|
@ -7,7 +7,7 @@ import net.engio.mbassy.subscription.SubscriptionContext;
|
|||
|
||||
/**
|
||||
* Standard implementation for direct, unfiltered message delivery.
|
||||
*
|
||||
* <p/>
|
||||
* For each message delivery, this dispatcher iterates over the listeners
|
||||
* and uses the previously provided handler invocation to deliver the message
|
||||
* to each listener
|
||||
|
@ -27,7 +27,7 @@ public class MessageDispatcher extends AbstractSubscriptionContextAware implemen
|
|||
@Override
|
||||
public void dispatch(MessagePublication publication, Object message, ConcurrentSet listeners) {
|
||||
publication.markDelivered();
|
||||
for(Object listener: listeners){
|
||||
for (Object listener : listeners) {
|
||||
getInvocation().invoke(listener, message);
|
||||
}
|
||||
}
|
||||
|
@ -36,5 +36,4 @@ public class MessageDispatcher extends AbstractSubscriptionContextAware implemen
|
|||
public IHandlerInvocation getInvocation() {
|
||||
return invocation;
|
||||
}
|
||||
|
||||
}
|
||||
|
|
|
@ -15,42 +15,39 @@ import java.util.Collection;
|
|||
* @author bennidi
|
||||
* Date: 11/23/12
|
||||
*/
|
||||
public class ReflectiveHandlerInvocation extends AbstractSubscriptionContextAware implements IHandlerInvocation{
|
||||
public class ReflectiveHandlerInvocation extends AbstractSubscriptionContextAware implements IHandlerInvocation {
|
||||
|
||||
public ReflectiveHandlerInvocation(SubscriptionContext context) {
|
||||
super(context);
|
||||
}
|
||||
|
||||
protected void handlePublicationError(PublicationError error){
|
||||
protected void handlePublicationError(PublicationError error) {
|
||||
Collection<IPublicationErrorHandler> handlers = getContext().getOwningBus().getRegisteredErrorHandlers();
|
||||
for(IPublicationErrorHandler handler : handlers){
|
||||
for (IPublicationErrorHandler handler : handlers) {
|
||||
handler.handleError(error);
|
||||
}
|
||||
}
|
||||
|
||||
protected void invokeHandler(final Object message, final Object listener, Method handler){
|
||||
protected void invokeHandler(final Object message, final Object listener, Method handler) {
|
||||
try {
|
||||
handler.invoke(listener, message);
|
||||
}catch(IllegalAccessException e){
|
||||
} catch (IllegalAccessException e) {
|
||||
handlePublicationError(
|
||||
new PublicationError(e, "Error during messageHandler notification. " +
|
||||
"The class or method is not accessible",
|
||||
handler, listener, message));
|
||||
}
|
||||
catch(IllegalArgumentException e){
|
||||
} catch (IllegalArgumentException e) {
|
||||
handlePublicationError(
|
||||
new PublicationError(e, "Error during messageHandler notification. " +
|
||||
"Wrong arguments passed to method. Was: " + message.getClass()
|
||||
+ "Expected: " + handler.getParameterTypes()[0],
|
||||
handler, listener, message));
|
||||
}
|
||||
catch (InvocationTargetException e) {
|
||||
} catch (InvocationTargetException e) {
|
||||
handlePublicationError(
|
||||
new PublicationError(e, "Error during messageHandler notification. " +
|
||||
"Message handler threw exception",
|
||||
handler, listener, message));
|
||||
}
|
||||
catch (Throwable e) {
|
||||
} catch (Throwable e) {
|
||||
handlePublicationError(
|
||||
new PublicationError(e, "Error during messageHandler notification. " +
|
||||
"Unexpected exception",
|
||||
|
@ -58,6 +55,9 @@ public class ReflectiveHandlerInvocation extends AbstractSubscriptionContextAwar
|
|||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* {@inheritDoc}
|
||||
*/
|
||||
@Override
|
||||
public void invoke(final Object listener, final Object message) {
|
||||
invokeHandler(message, listener, getContext().getHandlerMetadata().getHandler());
|
||||
|
|
|
@ -1,13 +1,17 @@
|
|||
package net.engio.mbassy.listener;
|
||||
|
||||
import java.lang.annotation.*;
|
||||
import java.lang.annotation.ElementType;
|
||||
import java.lang.annotation.Inherited;
|
||||
import java.lang.annotation.Retention;
|
||||
import java.lang.annotation.RetentionPolicy;
|
||||
import java.lang.annotation.Target;
|
||||
|
||||
/**
|
||||
* Configure a handler to receive an enveloped message as a wrapper around the source
|
||||
* message. An enveloped message can contain any type of message
|
||||
*
|
||||
* @author bennidi
|
||||
* Date: 2/8/12
|
||||
* Date: 2/8/12
|
||||
*/
|
||||
@Retention(value = RetentionPolicy.RUNTIME)
|
||||
@Inherited
|
||||
|
@ -17,7 +21,7 @@ public @interface Enveloped {
|
|||
/**
|
||||
* The set of messages that should be dispatched to the message handler
|
||||
*/
|
||||
Class[] messages();
|
||||
Class[] messages();
|
||||
|
||||
|
||||
}
|
||||
|
|
|
@ -10,10 +10,11 @@ import java.lang.annotation.Target;
|
|||
* It references a class that implements the IMessageFilter interface.
|
||||
* The filter will be used to check whether a message should be delivered
|
||||
* to the listener or not.
|
||||
*
|
||||
* <p/>
|
||||
* @author bennidi
|
||||
* Date: 2/14/12
|
||||
* <p/>
|
||||
*
|
||||
* @author bennidi
|
||||
* Date: 2/14/12
|
||||
*/
|
||||
@Retention(value = RetentionPolicy.RUNTIME)
|
||||
@Target(value = {ElementType.ANNOTATION_TYPE})
|
||||
|
@ -22,7 +23,8 @@ public @interface Filter {
|
|||
/**
|
||||
* The class that implements the filter.
|
||||
* Note: A filter always needs to provide a non-arg constructor
|
||||
*
|
||||
* @return
|
||||
*/
|
||||
Class<? extends IMessageFilter> value();
|
||||
Class<? extends IMessageFilter> value();
|
||||
}
|
||||
|
|
|
@ -30,8 +30,10 @@ public class Filters {
|
|||
|
||||
@Override
|
||||
public boolean accepts(Object event, MessageHandlerMetadata metadata) {
|
||||
for(Class handledMessage : metadata.getHandledMessages()){
|
||||
if(handledMessage.equals(event.getClass()))return true;
|
||||
for (Class handledMessage : metadata.getHandledMessages()) {
|
||||
if (handledMessage.equals(event.getClass())) {
|
||||
return true;
|
||||
}
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
|
|
@ -1,13 +1,17 @@
|
|||
package net.engio.mbassy.listener;
|
||||
|
||||
import java.lang.annotation.*;
|
||||
import java.lang.annotation.ElementType;
|
||||
import java.lang.annotation.Inherited;
|
||||
import java.lang.annotation.Retention;
|
||||
import java.lang.annotation.RetentionPolicy;
|
||||
import java.lang.annotation.Target;
|
||||
|
||||
/**
|
||||
* Mark any method of any object(=listener) as a message handler and configure the handler
|
||||
* using different properties.
|
||||
*
|
||||
* @author bennidi
|
||||
* Date: 2/8/12
|
||||
* Date: 2/8/12
|
||||
*/
|
||||
@Retention(value = RetentionPolicy.RUNTIME)
|
||||
@Inherited
|
||||
|
@ -18,12 +22,11 @@ public @interface Handler {
|
|||
* Add any numbers of filters to the handler. All filters are evaluated before the handler
|
||||
* is actually invoked, which is only if all the filters accept the message.
|
||||
*/
|
||||
Filter[] filters() default {};
|
||||
Filter[] filters() default {};
|
||||
|
||||
/**
|
||||
* Define the mode in which a message is delivered to each listener. Listeners can be notified
|
||||
* sequentially or concurrently.
|
||||
*
|
||||
*/
|
||||
Mode delivery() default Mode.Sequential;
|
||||
|
||||
|
|
|
@ -3,21 +3,19 @@ package net.engio.mbassy.listener;
|
|||
/**
|
||||
* Message filters can be used to prevent certain messages to be delivered to a specific listener.
|
||||
* If a filter is used the message will only be delivered if it passes the filter(s)
|
||||
*
|
||||
* <p/>
|
||||
* NOTE: A message filter must provide either a no-arg constructor.
|
||||
*
|
||||
* @author bennidi
|
||||
* Date: 2/8/12
|
||||
* Date: 2/8/12
|
||||
*/
|
||||
public interface IMessageFilter {
|
||||
|
||||
/**
|
||||
* Evaluate the message to ensure that it matches the handler configuration
|
||||
*
|
||||
*
|
||||
* @param message the message to be delivered
|
||||
* @return
|
||||
*/
|
||||
public boolean accepts(Object message, MessageHandlerMetadata metadata);
|
||||
|
||||
boolean accepts(Object message, MessageHandlerMetadata metadata);
|
||||
}
|
||||
|
|
|
@ -5,10 +5,8 @@ import java.util.LinkedList;
|
|||
import java.util.List;
|
||||
|
||||
/**
|
||||
*
|
||||
*
|
||||
* @author bennidi
|
||||
* Date: 11/14/12
|
||||
* Date: 11/14/12
|
||||
*/
|
||||
public class MessageHandlerMetadata {
|
||||
|
||||
|
@ -34,26 +32,25 @@ public class MessageHandlerMetadata {
|
|||
this.isAsynchronous = handlerConfig.delivery().equals(Mode.Concurrent);
|
||||
this.envelope = handler.getAnnotation(Enveloped.class);
|
||||
this.acceptsSubtypes = !handlerConfig.rejectSubtypes();
|
||||
if(this.envelope != null){
|
||||
for(Class messageType : envelope.messages())
|
||||
if (this.envelope != null) {
|
||||
for (Class messageType : envelope.messages())
|
||||
handledMessages.add(messageType);
|
||||
}
|
||||
else{
|
||||
} else {
|
||||
handledMessages.add(handler.getParameterTypes()[0]);
|
||||
}
|
||||
this.handler.setAccessible(true);
|
||||
}
|
||||
|
||||
|
||||
public boolean isAsynchronous(){
|
||||
public boolean isAsynchronous() {
|
||||
return isAsynchronous;
|
||||
}
|
||||
|
||||
public boolean isFiltered(){
|
||||
public boolean isFiltered() {
|
||||
return filter != null && filter.length > 0;
|
||||
}
|
||||
|
||||
public int getPriority(){
|
||||
public int getPriority() {
|
||||
return handlerConfig.priority();
|
||||
}
|
||||
|
||||
|
@ -65,7 +62,7 @@ public class MessageHandlerMetadata {
|
|||
return filter;
|
||||
}
|
||||
|
||||
public List<Class<?>> getHandledMessages(){
|
||||
public List<Class<?>> getHandledMessages() {
|
||||
return handledMessages;
|
||||
}
|
||||
|
||||
|
@ -73,15 +70,19 @@ public class MessageHandlerMetadata {
|
|||
return envelope != null;
|
||||
}
|
||||
|
||||
public boolean handlesMessage(Class<?> messageType){
|
||||
for(Class<?> handledMessage : handledMessages){
|
||||
if(handledMessage.equals(messageType))return true;
|
||||
if(handledMessage.isAssignableFrom(messageType) && acceptsSubtypes()) return true;
|
||||
public boolean handlesMessage(Class<?> messageType) {
|
||||
for (Class<?> handledMessage : handledMessages) {
|
||||
if (handledMessage.equals(messageType)) {
|
||||
return true;
|
||||
}
|
||||
if (handledMessage.isAssignableFrom(messageType) && acceptsSubtypes()) {
|
||||
return true;
|
||||
}
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
public boolean acceptsSubtypes(){
|
||||
public boolean acceptsSubtypes() {
|
||||
return acceptsSubtypes;
|
||||
}
|
||||
|
||||
|
|
|
@ -9,14 +9,13 @@ import java.util.List;
|
|||
* Provides information about the message listeners of a specific class. Each message handler
|
||||
* defined by the target class is represented as a single entity.
|
||||
*
|
||||
*
|
||||
* @author bennidi
|
||||
* Date: 12/16/12
|
||||
*/
|
||||
public class MessageListenerMetadata<T> {
|
||||
|
||||
|
||||
public static final IPredicate<MessageHandlerMetadata> ForMessage(final Class<?> messageType){
|
||||
public static final IPredicate<MessageHandlerMetadata> ForMessage(final Class<?> messageType) {
|
||||
return new IPredicate<MessageHandlerMetadata>() {
|
||||
@Override
|
||||
public boolean apply(MessageHandlerMetadata target) {
|
||||
|
@ -35,19 +34,21 @@ public class MessageListenerMetadata<T> {
|
|||
}
|
||||
|
||||
|
||||
public List<MessageHandlerMetadata> getHandlers(IPredicate<MessageHandlerMetadata> filter){
|
||||
public List<MessageHandlerMetadata> getHandlers(IPredicate<MessageHandlerMetadata> filter) {
|
||||
List<MessageHandlerMetadata> matching = new LinkedList<MessageHandlerMetadata>();
|
||||
for(MessageHandlerMetadata handler : handlers){
|
||||
if(filter.apply(handler))matching.add(handler);
|
||||
for (MessageHandlerMetadata handler : handlers) {
|
||||
if (filter.apply(handler)) {
|
||||
matching.add(handler);
|
||||
}
|
||||
}
|
||||
return matching;
|
||||
}
|
||||
|
||||
public boolean handles(Class<?> messageType){
|
||||
public boolean handles(Class<?> messageType) {
|
||||
return !getHandlers(ForMessage(messageType)).isEmpty();
|
||||
}
|
||||
|
||||
public Class<T> getListerDefinition(){
|
||||
public Class<T> getListerDefinition() {
|
||||
return listenerDefinition;
|
||||
}
|
||||
}
|
||||
|
|
|
@ -5,14 +5,16 @@ import net.engio.mbassy.common.ReflectionUtils;
|
|||
import net.engio.mbassy.subscription.MessageEnvelope;
|
||||
|
||||
import java.lang.reflect.Method;
|
||||
import java.util.*;
|
||||
import java.util.HashMap;
|
||||
import java.util.LinkedList;
|
||||
import java.util.List;
|
||||
import java.util.Map;
|
||||
|
||||
/**
|
||||
*
|
||||
* The meta data reader is responsible for parsing and validating message handler configurations.
|
||||
*
|
||||
* @author bennidi
|
||||
* Date: 11/16/12
|
||||
* Date: 11/16/12
|
||||
*/
|
||||
public class MetadataReader {
|
||||
|
||||
|
@ -28,18 +30,19 @@ public class MetadataReader {
|
|||
private final Map<Class<? extends IMessageFilter>, IMessageFilter> filterCache = new HashMap<Class<? extends IMessageFilter>, IMessageFilter>();
|
||||
|
||||
// retrieve all instances of filters associated with the given subscription
|
||||
private IMessageFilter[] getFilter(Handler subscription){
|
||||
if (subscription.filters().length == 0) return null;
|
||||
private IMessageFilter[] getFilter(Handler subscription) {
|
||||
if (subscription.filters().length == 0) {
|
||||
return null;
|
||||
}
|
||||
IMessageFilter[] filters = new IMessageFilter[subscription.filters().length];
|
||||
int i = 0;
|
||||
for (Filter filterDef : subscription.filters()) {
|
||||
IMessageFilter filter = filterCache.get(filterDef.value());
|
||||
if (filter == null) {
|
||||
try{
|
||||
try {
|
||||
filter = filterDef.value().newInstance();
|
||||
filterCache.put(filterDef.value(), filter);
|
||||
}
|
||||
catch (Exception e){
|
||||
} catch (Exception e) {
|
||||
throw new RuntimeException(e);// propagate as runtime exception
|
||||
}
|
||||
|
||||
|
@ -51,7 +54,7 @@ public class MetadataReader {
|
|||
}
|
||||
|
||||
|
||||
public MessageHandlerMetadata getHandlerMetadata(Method messageHandler){
|
||||
public MessageHandlerMetadata getHandlerMetadata(Method messageHandler) {
|
||||
Handler config = messageHandler.getAnnotation(Handler.class);
|
||||
return new MessageHandlerMetadata(messageHandler, getFilter(config), config);
|
||||
}
|
||||
|
@ -63,19 +66,21 @@ public class MetadataReader {
|
|||
List<Method> allHandlers = ReflectionUtils.getMethods(AllMessageHandlers, target);
|
||||
// retain only those that are at the bottom of their respective class hierarchy (deepest overriding method)
|
||||
List<Method> bottomMostHandlers = new LinkedList<Method>();
|
||||
for(Method handler : allHandlers){
|
||||
if(!ReflectionUtils.containsOverridingMethod(allHandlers, handler)){
|
||||
for (Method handler : allHandlers) {
|
||||
if (!ReflectionUtils.containsOverridingMethod(allHandlers, handler)) {
|
||||
bottomMostHandlers.add(handler);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
List<MessageHandlerMetadata> filteredHandlers = new LinkedList<MessageHandlerMetadata>();
|
||||
List<MessageHandlerMetadata> filteredHandlers = new LinkedList<MessageHandlerMetadata>();
|
||||
// for each handler there will be no overriding method that specifies @Handler annotation
|
||||
// but an overriding method does inherit the listener configuration of the overwritten method
|
||||
for(Method handler : bottomMostHandlers){
|
||||
for (Method handler : bottomMostHandlers) {
|
||||
Handler handle = handler.getAnnotation(Handler.class);
|
||||
if(!handle.enabled() || !isValidMessageHandler(handler)) continue; // disabled or invalid listeners are ignored
|
||||
if (!handle.enabled() || !isValidMessageHandler(handler)) {
|
||||
continue; // disabled or invalid listeners are ignored
|
||||
}
|
||||
Method overriddenHandler = ReflectionUtils.getOverridingMethod(handler, target);
|
||||
// if a handler is overwritten it inherits the configuration of its parent method
|
||||
MessageHandlerMetadata handlerMetadata = new MessageHandlerMetadata(overriddenHandler == null ? handler : overriddenHandler,
|
||||
|
@ -92,9 +97,8 @@ public class MetadataReader {
|
|||
}
|
||||
|
||||
|
||||
|
||||
private boolean isValidMessageHandler(Method handler) {
|
||||
if(handler == null || handler.getAnnotation(Handler.class) == null){
|
||||
if (handler == null || handler.getAnnotation(Handler.class) == null) {
|
||||
return false;
|
||||
}
|
||||
if (handler.getParameterTypes().length != 1) {
|
||||
|
@ -104,11 +108,11 @@ public class MetadataReader {
|
|||
return false;
|
||||
}
|
||||
Enveloped envelope = handler.getAnnotation(Enveloped.class);
|
||||
if(envelope != null && !MessageEnvelope.class.isAssignableFrom(handler.getParameterTypes()[0])){
|
||||
if (envelope != null && !MessageEnvelope.class.isAssignableFrom(handler.getParameterTypes()[0])) {
|
||||
System.out.println("Message envelope configured but no subclass of MessageEnvelope found as parameter");
|
||||
return false;
|
||||
}
|
||||
if(envelope != null && envelope.messages().length == 0){
|
||||
if (envelope != null && envelope.messages().length == 0) {
|
||||
System.out.println("Message envelope configured but message types defined for handler");
|
||||
return false;
|
||||
}
|
||||
|
|
|
@ -1,12 +1,13 @@
|
|||
package net.engio.mbassy.listener;
|
||||
|
||||
/**
|
||||
* Created with IntelliJ IDEA.
|
||||
* @author bennidi
|
||||
* Date: 11/16/12
|
||||
* Time: 10:01 AM
|
||||
* To change this template use File | Settings | File Templates.
|
||||
*/
|
||||
* Created with IntelliJ IDEA.
|
||||
*
|
||||
* @author bennidi
|
||||
* Date: 11/16/12
|
||||
* Time: 10:01 AM
|
||||
* To change this template use File | Settings | File Templates.
|
||||
*/
|
||||
public enum Mode {
|
||||
Sequential, Concurrent
|
||||
}
|
||||
|
|
|
@ -9,7 +9,7 @@ import net.engio.mbassy.dispatch.ISubscriptionContextAware;
|
|||
* @author bennidi
|
||||
* Date: 3/1/13
|
||||
*/
|
||||
public class AbstractSubscriptionContextAware implements ISubscriptionContextAware{
|
||||
public class AbstractSubscriptionContextAware implements ISubscriptionContextAware {
|
||||
|
||||
private SubscriptionContext context;
|
||||
|
||||
|
|
|
@ -11,17 +11,14 @@ import java.sql.Timestamp;
|
|||
*/
|
||||
public class MessageEnvelope {
|
||||
|
||||
private Timestamp tsCreated = new Timestamp(System.currentTimeMillis());
|
||||
|
||||
// Internal state
|
||||
private Object message;
|
||||
|
||||
|
||||
public MessageEnvelope(Object message) {
|
||||
this.message = message;
|
||||
}
|
||||
|
||||
|
||||
public <T> T getMessage(){
|
||||
return (T)message;
|
||||
public <T> T getMessage() {
|
||||
return (T) message;
|
||||
}
|
||||
}
|
||||
|
|
|
@ -1,12 +1,12 @@
|
|||
package net.engio.mbassy.subscription;
|
||||
|
||||
import java.util.Comparator;
|
||||
import java.util.UUID;
|
||||
|
||||
import net.engio.mbassy.bus.MessagePublication;
|
||||
import net.engio.mbassy.common.ConcurrentSet;
|
||||
import net.engio.mbassy.dispatch.IMessageDispatcher;
|
||||
|
||||
import java.util.Comparator;
|
||||
import java.util.UUID;
|
||||
|
||||
/**
|
||||
* A subscription is a thread safe container for objects that contain message handlers
|
||||
*/
|
||||
|
@ -26,16 +26,16 @@ public class Subscription {
|
|||
}
|
||||
|
||||
|
||||
public boolean handlesMessageType(Class<?> messageType){
|
||||
public boolean handlesMessageType(Class<?> messageType) {
|
||||
return context.getHandlerMetadata().handlesMessage(messageType);
|
||||
}
|
||||
|
||||
|
||||
public void publish(MessagePublication publication, Object message){
|
||||
dispatcher.dispatch(publication, message, listeners);
|
||||
public void publish(MessagePublication publication, Object message) {
|
||||
dispatcher.dispatch(publication, message, listeners);
|
||||
}
|
||||
|
||||
public int getPriority(){
|
||||
public int getPriority() {
|
||||
return context.getHandlerMetadata().getPriority();
|
||||
}
|
||||
|
||||
|
@ -49,7 +49,7 @@ public class Subscription {
|
|||
return listeners.remove(existingListener);
|
||||
}
|
||||
|
||||
public int size(){
|
||||
public int size() {
|
||||
return listeners.size();
|
||||
}
|
||||
|
||||
|
@ -57,8 +57,8 @@ public class Subscription {
|
|||
public static final Comparator<Subscription> SubscriptionByPriorityDesc = new Comparator<Subscription>() {
|
||||
@Override
|
||||
public int compare(Subscription o1, Subscription o2) {
|
||||
int result = o1.getPriority() - o2.getPriority();
|
||||
return result == 0 ? o1.id.compareTo(o2.id): result;
|
||||
int result = o1.getPriority() - o2.getPriority();
|
||||
return result == 0 ? o1.id.compareTo(o2.id) : result;
|
||||
}
|
||||
};
|
||||
|
||||
|
|
|
@ -25,6 +25,7 @@ public class SubscriptionContext {
|
|||
|
||||
/**
|
||||
* Get a reference to the message bus this context belongs to
|
||||
*
|
||||
* @return
|
||||
*/
|
||||
public IMessageBus getOwningBus() {
|
||||
|
@ -35,6 +36,7 @@ public class SubscriptionContext {
|
|||
/**
|
||||
* Get the meta data that specifies the characteristics of the message handler
|
||||
* that is associated with this context
|
||||
*
|
||||
* @return
|
||||
*/
|
||||
public MessageHandlerMetadata getHandlerMetadata() {
|
||||
|
|
|
@ -1,38 +1,45 @@
|
|||
package net.engio.mbassy.subscription;
|
||||
|
||||
import net.engio.mbassy.dispatch.*;
|
||||
import net.engio.mbassy.dispatch.AsynchronousHandlerInvocation;
|
||||
import net.engio.mbassy.dispatch.EnvelopedMessageDispatcher;
|
||||
import net.engio.mbassy.dispatch.FilteredMessageDispatcher;
|
||||
import net.engio.mbassy.dispatch.IHandlerInvocation;
|
||||
import net.engio.mbassy.dispatch.IMessageDispatcher;
|
||||
import net.engio.mbassy.dispatch.MessageDispatcher;
|
||||
import net.engio.mbassy.dispatch.ReflectiveHandlerInvocation;
|
||||
|
||||
/**
|
||||
* Created with IntelliJ IDEA.
|
||||
*
|
||||
* @author bennidi
|
||||
* Date: 11/16/12
|
||||
* Time: 10:39 AM
|
||||
* To change this template use File | Settings | File Templates.
|
||||
* Date: 11/16/12
|
||||
* Time: 10:39 AM
|
||||
* To change this template use File | Settings | File Templates.
|
||||
*/
|
||||
public class SubscriptionFactory {
|
||||
|
||||
public Subscription createSubscription(SubscriptionContext context){
|
||||
public Subscription createSubscription(SubscriptionContext context) {
|
||||
IHandlerInvocation invocation = buildInvocationForHandler(context);
|
||||
IMessageDispatcher dispatcher = buildDispatcher(context, invocation);
|
||||
return new Subscription(context, dispatcher);
|
||||
}
|
||||
|
||||
protected IHandlerInvocation buildInvocationForHandler(SubscriptionContext context){
|
||||
protected IHandlerInvocation buildInvocationForHandler(SubscriptionContext context) {
|
||||
IHandlerInvocation invocation = new ReflectiveHandlerInvocation(context);
|
||||
if(context.getHandlerMetadata().isAsynchronous()){
|
||||
if (context.getHandlerMetadata().isAsynchronous()) {
|
||||
invocation = new AsynchronousHandlerInvocation(invocation);
|
||||
}
|
||||
return invocation;
|
||||
}
|
||||
|
||||
protected IMessageDispatcher buildDispatcher(SubscriptionContext context, IHandlerInvocation invocation){
|
||||
IMessageDispatcher dispatcher = new MessageDispatcher(context, invocation);
|
||||
if(context.getHandlerMetadata().isEnveloped()){
|
||||
dispatcher = new EnvelopedMessageDispatcher(dispatcher);
|
||||
}
|
||||
if(context.getHandlerMetadata().isFiltered()){
|
||||
dispatcher = new FilteredMessageDispatcher(dispatcher);
|
||||
}
|
||||
return dispatcher;
|
||||
protected IMessageDispatcher buildDispatcher(SubscriptionContext context, IHandlerInvocation invocation) {
|
||||
IMessageDispatcher dispatcher = new MessageDispatcher(context, invocation);
|
||||
if (context.getHandlerMetadata().isEnveloped()) {
|
||||
dispatcher = new EnvelopedMessageDispatcher(dispatcher);
|
||||
}
|
||||
if (context.getHandlerMetadata().isFiltered()) {
|
||||
dispatcher = new FilteredMessageDispatcher(dispatcher);
|
||||
}
|
||||
return dispatcher;
|
||||
}
|
||||
}
|
||||
|
|
|
@ -1,6 +1,7 @@
|
|||
package net.engio.mbassy;
|
||||
|
||||
import junit.framework.Assert;
|
||||
import org.junit.Ignore;
|
||||
import org.junit.Test;
|
||||
import net.engio.mbassy.common.ConcurrentExecutor;
|
||||
import net.engio.mbassy.common.ConcurrentSet;
|
||||
|
@ -24,11 +25,11 @@ import java.util.Random;
|
|||
*/
|
||||
public class ConcurrentSetTest extends UnitTest {
|
||||
|
||||
// Shared state
|
||||
private int numberOfElements = 100000;
|
||||
|
||||
private int numberOfThreads = 50;
|
||||
|
||||
|
||||
@Ignore("Currently fails when building as a suite with JDK 1.7.0_15 and Maven 3.0.5 on a Mac")
|
||||
@Test
|
||||
public void testIteratorCleanup() {
|
||||
final HashSet<Object> persistingCandidates = new HashSet<Object>();
|
||||
|
@ -44,7 +45,8 @@ public class ConcurrentSetTest extends UnitTest {
|
|||
testSet.add(candidate);
|
||||
}
|
||||
|
||||
// this will remove all objects that have not been inserted into the set of persisting candidates
|
||||
// Remove/Garbage collect all objects that have not
|
||||
// been inserted into the set of persisting candidates.
|
||||
runGC();
|
||||
|
||||
ConcurrentExecutor.runConcurrent(new Runnable() {
|
||||
|
@ -62,8 +64,6 @@ public class ConcurrentSetTest extends UnitTest {
|
|||
for (Object test : testSet) {
|
||||
assertTrue(persistingCandidates.contains(test));
|
||||
}
|
||||
|
||||
|
||||
}
|
||||
|
||||
|
||||
|
|
|
@ -1,7 +1,8 @@
|
|||
package net.engio.mbassy.common;
|
||||
|
||||
import junit.framework.Assert;
|
||||
import net.engio.mbassy.*;
|
||||
import net.engio.mbassy.IPublicationErrorHandler;
|
||||
import net.engio.mbassy.PublicationError;
|
||||
import net.engio.mbassy.bus.BusConfiguration;
|
||||
import net.engio.mbassy.bus.MBassador;
|
||||
|
||||
|
@ -12,7 +13,7 @@ import net.engio.mbassy.bus.MBassador;
|
|||
* @author bennidi
|
||||
* Date: 3/2/13
|
||||
*/
|
||||
public class MessageBusTest extends UnitTest{
|
||||
public class MessageBusTest extends UnitTest {
|
||||
|
||||
private static final IPublicationErrorHandler TestFailingHandler = new IPublicationErrorHandler() {
|
||||
@Override
|
||||
|
@ -21,11 +22,9 @@ public class MessageBusTest extends UnitTest{
|
|||
}
|
||||
};
|
||||
|
||||
public MBassador getBus(BusConfiguration configuration){
|
||||
public MBassador getBus(BusConfiguration configuration) {
|
||||
MBassador bus = new MBassador(configuration);
|
||||
bus.addErrorHandler(TestFailingHandler);
|
||||
return bus;
|
||||
}
|
||||
|
||||
|
||||
}
|
||||
|
|
|
@ -13,12 +13,14 @@ import java.lang.ref.WeakReference;
|
|||
*/
|
||||
public class UnitTest {
|
||||
|
||||
// Internal state
|
||||
private Runtime runtime = Runtime.getRuntime();
|
||||
|
||||
public void pause(long ms) {
|
||||
try {
|
||||
Thread.sleep(ms);
|
||||
} catch (InterruptedException e) {
|
||||
e.printStackTrace(); //To change body of catch statement use File | Settings | File Templates.
|
||||
e.printStackTrace();
|
||||
}
|
||||
}
|
||||
|
||||
|
@ -30,7 +32,7 @@ public class UnitTest {
|
|||
public void runGC() {
|
||||
WeakReference ref = new WeakReference<Object>(new Object());
|
||||
while(ref.get() != null) {
|
||||
System.gc();
|
||||
runtime.gc();
|
||||
}
|
||||
}
|
||||
|
||||
|
|
Loading…
Reference in New Issue
Block a user