(0);
+
+
+ // two versions, java vs not-java
+ if (initialHeapSizeInMegabytes != 0) {
+ this.arguments.add("-Xms" + this.initialHeapSizeInMegabytes + "M");
+ }
+ if (maximumHeapSizeInMegabytes != 0) {
+ this.arguments.add("-Xmx" + this.maximumHeapSizeInMegabytes + "M");
+ }
+
+ // always run the server version
+ this.arguments.add("-server");
+
+ for (String option : this.jvmOptions) {
+ this.arguments.add(option);
+ }
+
+ // same as -cp
+ String classpath = getClasspath();
+
+ // two more versions. jar vs class
+ if (this.jarFile != null) {
+ this.arguments.add("-jar");
+ this.arguments.add(this.jarFile);
+
+ // interesting note. You CANNOT have a classpath specified on the commandline
+ // when using JARs!! It must be set in the jar's MANIFEST.
+ if (!classpath.isEmpty()) {
+ throw new IllegalArgumentException("WHOOPS. You CANNOT have a classpath specified on the commandline when using JARs, " +
+ " It must be set in the JARs MANIFEST instead.");
+ }
+ }
+ // if we are running classes!
+ else if (this.mainClass != null) {
+ if (!classpath.isEmpty()) {
+ this.arguments.add("-classpath");
+ this.arguments.add(classpath);
+ }
+
+ // main class must happen AFTER the classpath!
+ this.arguments.add(this.mainClass);
+ }
+ else {
+ throw new IllegalArgumentException("You must specify a jar or main class when running a java process!");
+ }
+
+
+ for (String arg : this.mainClassArguments) {
+ if (arg.contains(" ")) {
+ // individual arguments MUST be in their own element in order to
+ // be processed properly (this is how it works on the command line!)
+ String[] split = arg.split(" ");
+ for (String s : split) {
+ this.arguments.add(s);
+ }
+ }
+ else {
+ this.arguments.add(arg);
+ }
+ }
+
+ this.arguments.addAll(origArguments);
+
+ return super.start();
+ }
+}
diff --git a/src/dorkbox/executor/NullOutputStream.java b/src/dorkbox/executor/NullOutputStream.java
new file mode 100644
index 0000000..fde5679
--- /dev/null
+++ b/src/dorkbox/executor/NullOutputStream.java
@@ -0,0 +1,46 @@
+/*
+ * Copyright 2010 dorkbox, llc
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package dorkbox.executor;
+
+import java.io.IOException;
+import java.io.OutputStream;
+
+public
+class NullOutputStream extends OutputStream {
+ @Override
+ public
+ void write(int i) throws IOException {
+ //do nothing
+ }
+
+ @Override
+ public
+ void write(byte[] b) throws IOException {
+ //do nothing
+ }
+
+ @Override
+ public
+ void write(byte[] b, int off, int len) throws IOException {
+ //do nothing
+ }
+
+ @Override
+ public
+ void flush() throws IOException {
+ //do nothing
+ }
+}
diff --git a/src/dorkbox/executor/ProcessProxy.java b/src/dorkbox/executor/ProcessProxy.java
new file mode 100644
index 0000000..6e433de
--- /dev/null
+++ b/src/dorkbox/executor/ProcessProxy.java
@@ -0,0 +1,215 @@
+/*
+ * Copyright 2010 dorkbox, llc
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package dorkbox.executor;
+
+import java.io.BufferedReader;
+import java.io.FileInputStream;
+import java.io.FilterInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.OutputStream;
+import java.lang.reflect.Field;
+import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.atomic.AtomicBoolean;
+
+import dorkbox.console.Console;
+import dorkbox.console.input.Terminal;
+
+public
+class ProcessProxy extends Thread {
+
+ private final InputStream is;
+ private final OutputStream os;
+
+ private final boolean isSystemIn;
+
+ private final CountDownLatch startUpLatch = new CountDownLatch(1);
+ private final CountDownLatch shutDownLatch = new CountDownLatch(1);
+
+ // when reading from the stdin and outputting to the process
+ public
+ ProcessProxy(String processName, InputStream inputStreamFromConsole, OutputStream outputStreamToProcess) {
+ boolean isSystemIn = false;
+
+ // basic check to see if we are System.in
+ if (inputStreamFromConsole.equals(System.in)) {
+
+ // more exact check: basically unwrap everything and see if it's a FileInputStream
+ try {
+ Field in = FilterInputStream.class.getDeclaredField("in");
+ in.setAccessible(true);
+
+ Object unwrapped = in.get(inputStreamFromConsole);
+
+ while (unwrapped instanceof FilterInputStream) {
+ unwrapped = in.get(unwrapped);
+ }
+
+ isSystemIn = unwrapped instanceof FileInputStream;
+ if (isSystemIn) {
+ inputStreamFromConsole = (InputStream) unwrapped;
+ }
+ } catch (Exception ignored) {
+ }
+ }
+
+ // if we are actually System.in, we want to use the Console.in INSTEAD, because it will let us do things we could otherwise not do.
+ this.isSystemIn = isSystemIn;
+
+ this.is = inputStreamFromConsole;
+ this.os = outputStreamToProcess;
+
+ setName(processName);
+ setDaemon(true);
+ }
+
+ private AtomicBoolean running = new AtomicBoolean(false);
+
+ @Override
+ public synchronized
+ void start() {
+ super.start();
+
+ // now we have to for it to actually start up. The process can run & complete before this starts, resulting in no input/output
+ // captured
+ try {
+ startUpLatch.await();
+ } catch (InterruptedException e) {
+ e.printStackTrace();
+ }
+ }
+
+ public
+ void close() {
+ // this.interrupt();
+ running.set(false);
+
+ try {
+ shutDownLatch.await();
+ } catch (InterruptedException e) {
+ e.printStackTrace();
+ }
+ }
+
+ @Override
+ public
+ void run() {
+ // if we are system in, we can ONLY read the line input, unless the Console project is present!
+ if (isSystemIn) {
+
+ }
+
+
+
+ // we rely on buferredReader.ready(), so that we can know if there is input or not (and read/block/etc if necessary)
+ final BufferedReader reader = new BufferedReader(new InputStreamReader(this.is));
+
+
+ Terminal in = Console.in();
+
+
+
+ running.set(true);
+
+ final OutputStream os = this.os;
+ // final BufferedReader reader = this.reader;
+ final long timeout = 200L;
+
+ startUpLatch.countDown();
+
+ try {
+ // this thread will read until there is no more data to read. (this is generally what you want)
+ // the stream will be closed when the process closes it (usually on exit)
+ int readInt;
+
+ if (os == null) {
+ while (!reader.ready()) {
+ Thread.sleep(timeout);
+
+ if (!running.get()) {
+ if (isSystemIn) {
+ System.err.println("DONE sysin " + this);
+ // should attempt to process anything more.
+ return;
+ }
+
+ // should process whatever is left.
+ System.err.println("DONE a " + this);
+ break;
+ }
+ }
+
+ // just read so it won't block.
+ reader.readLine();
+ }
+ else {
+ while (running.get()) {
+ try {
+ while (!reader.ready()) {
+ Thread.sleep(timeout);
+
+ if (!running.get()) {
+ if (isSystemIn) {
+ System.err.println("DONE sysin " + this);
+ // should attempt to process anything more.
+ return;
+ }
+
+ // should process whatever is left.
+ System.err.println("DONE a " + this);
+ break;
+ }
+ }
+ } catch (InterruptedException ignored) {
+ }
+
+
+ while ((readInt = reader.read()) != -1) {
+ System.err.println(".");
+ os.write(readInt);
+
+ // flush the output on new line. (same for both windows '\r\n' and linux '\n')
+ if (readInt == '\n') {
+ os.flush();
+
+ synchronized (os) {
+ os.notifyAll();
+ }
+ }
+ }
+ }
+
+
+ }
+ } catch (Exception ignore) {
+ ignore.printStackTrace();
+ } finally {
+ System.err.println("DONE c " + this);
+
+ try {
+ // this.reader.close();
+ if (os != null) {
+ os.flush(); // this goes to the console, so we don't want to close it!
+ }
+ } catch (IOException e) {
+ e.printStackTrace();
+ }
+
+ shutDownLatch.countDown();
+ }
+ }
+}
diff --git a/src/dorkbox/executor/ShellAsyncExecutor.java b/src/dorkbox/executor/ShellAsyncExecutor.java
new file mode 100644
index 0000000..141b7f8
--- /dev/null
+++ b/src/dorkbox/executor/ShellAsyncExecutor.java
@@ -0,0 +1,62 @@
+/*
+ * Copyright 2017 dorkbox, llc
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package dorkbox.executor;
+
+public
+class ShellAsyncExecutor extends ShellExecutor {
+ /**
+ * This is a convenience method to easily create a default process. Will immediately return, and does not wait for the process to finish
+ *
+ * @param executableName the name of the executable to run
+ * @param args the arguments for the executable
+ *
+ * @return true if the process ran successfully (exit value was 0), otherwise false
+ */
+ public static
+ boolean run(String executableName, String... args) {
+ ShellAsyncExecutor shell = new ShellAsyncExecutor();
+ shell.setExecutable(executableName);
+ shell.addArguments(args);
+
+ return shell.start() == 0;
+ }
+
+ /**
+ * This is a convenience method to easily create a default process. Will immediately return, and does not wait for the process to finish
+ *
+ * @param executableName the name of the executable to run
+ * @param args the arguments for the executable
+ *
+ * @return true if the process ran successfully (exit value was 0), otherwise false
+ */
+ public static
+ boolean runShell(String executableName, String... args) {
+ ShellAsyncExecutor shell = new ShellAsyncExecutor();
+ shell.setExecutable(executableName);
+ shell.addArguments(args);
+ shell.executeAsShellCommand();
+
+ return shell.start() == 0;
+ }
+
+ @Override
+ public
+ int start() {
+ // always have to make sure separate threads are started, otherwise the calling process can hang.
+ createReadWriterThreads();
+ return super.start(false);
+ }
+}
diff --git a/src/dorkbox/executor/ShellExecutor.java b/src/dorkbox/executor/ShellExecutor.java
new file mode 100644
index 0000000..844e7dd
--- /dev/null
+++ b/src/dorkbox/executor/ShellExecutor.java
@@ -0,0 +1,681 @@
+/*
+ * Copyright 2010 dorkbox, llc
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package dorkbox.executor;
+
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.InputStream;
+import java.io.PrintStream;
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * If you want to save off the output from the process, set a PrintStream to the following:
+ * {@code
+ *
+ * ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream(8196);
+ * PrintStream outputStream = new PrintStream(byteArrayOutputStream);
+ * ...
+ *
+ * String output = ShellProcessBuilder.getOutput(byteArrayOutputStream);
+ * }
+ */
+@SuppressWarnings({"UnusedReturnValue", "unused", "ManualArrayToCollectionCopy", "UseBulkOperation", "Convert2Diamond", "Convert2Lambda",
+ "Anonymous2MethodRef", "WeakerAccess"})
+public
+class ShellExecutor {
+
+ // TODO: Add the ability to get the process PID via java for mac/windows/linux. Linux is avail from jvm, windows needs JNA
+
+ static final String LINE_SEPARATOR = System.getProperty("line.separator");
+ static final boolean isWindows;
+ static final boolean isMacOsX;
+
+ static {
+ String osName = System.getProperty("os.name");
+ isWindows = osName.startsWith("windows");
+ isMacOsX = osName.startsWith("mac") || osName.startsWith("darwin");
+ }
+
+
+
+ private static String defaultShell = null;
+
+ private final PrintStream outputStream;
+ private final PrintStream outputErrorStream;
+ private final InputStream inputStream;
+
+ protected List arguments = new ArrayList();
+ private Map environment = null;
+ private String workingDirectory = null;
+ private String executableName = null;
+ private String executableDirectory = null;
+
+ private Process process = null;
+
+ private ProcessProxy writeToProcess_input = null;
+ private ProcessProxy readFromProcess_output = null;
+ private ProcessProxy readFromProcess_error = null;
+
+ private boolean createReadWriterThreads = false;
+
+ private boolean executeAsShell;
+ private String pipeToNullString = "";
+ private ByteArrayOutputStream byteArrayOutputStream;
+
+ private List fullCommand;
+
+ /**
+ * Gets the version number.
+ */
+ public static
+ String getVersion() {
+ return "1.0";
+ }
+
+ /**
+ * This is a convenience method to easily create a default process. Will block until the process is finished running
+ *
+ * @param executableName the name of the executable to run
+ * @param args the arguments for the executable
+ *
+ * @return true if the process ran successfully (exit value was 0), otherwise false
+ */
+ public static boolean run(String executableName, String... args) {
+ ShellExecutor shell = new ShellExecutor();
+ shell.setExecutable(executableName);
+ shell.addArguments(args);
+
+ // blocks until finished
+ return shell.start() == 0;
+ }
+
+ /**
+ * This is a convenience method to easily create a default process. Will immediately return, and does not wait for the process to finish
+ *
+ * @param executableName the name of the executable to run
+ * @param args the arguments for the executable
+ *
+ * @return true if the process ran successfully (exit value was 0), otherwise false
+ */
+ public static
+ boolean runShell(String executableName, String... args) {
+ ShellExecutor shell = new ShellExecutor();
+ shell.setExecutable(executableName);
+ shell.addArguments(args);
+ shell.executeAsShellCommand();
+
+ // blocks until finished
+ return shell.start() == 0;
+ }
+
+ /**
+ * This will cause the spawned process to pipe it's output to a String, so it can be retrieved.
+ */
+ public
+ ShellExecutor() {
+ byteArrayOutputStream = new ByteArrayOutputStream(8196);
+ PrintStream outputStream = new PrintStream(byteArrayOutputStream);
+
+ this.inputStream = null;
+ this.outputStream = outputStream;
+ this.outputErrorStream = outputStream;
+ }
+
+ public
+ ShellExecutor(final PrintStream out) {
+ this.inputStream = null;
+ this.outputStream = out;
+ this.outputErrorStream = out;
+ }
+
+ public
+ ShellExecutor(final InputStream in, final PrintStream out) {
+ this.inputStream = in;
+ this.outputStream = out;
+ this.outputErrorStream = out;
+ }
+
+ public
+ ShellExecutor(final InputStream in, final PrintStream out, final PrintStream err) {
+ this.inputStream = in;
+ this.outputStream = out;
+ this.outputErrorStream = err;
+ }
+
+ /**
+ * Creates extra reader/writer threads for the sub-process. This is useful depending on how the sub-process is designed to run.
+ *
+ * For a process you want interactive IO with, this is required.
+ *
+ * For a long-running sub-process, with no interactive IO, this is what you'd want.
+ *
+ * For a run-and-get-the-results process, this isn't recommended.
+ *
+ */
+ public final
+ ShellExecutor createReadWriterThreads() {
+ createReadWriterThreads = true;
+ return this;
+ }
+
+ /**
+ * When launched from eclipse, the working directory is USUALLY the root of the project folder
+ */
+ public final
+ ShellExecutor setWorkingDirectory(final String workingDirectory) {
+ // MUST be absolute path!!
+ this.workingDirectory = new File(workingDirectory).getAbsolutePath();
+ return this;
+ }
+
+ /**
+ * The Shell's execution environment variables. Set to `null` to only use the default environment variables (From what
+ * {@link System#getenv} returns)
+ */
+ public final
+ ShellExecutor setEnvironment(final Map environment) {
+ this.environment = environment;
+ return this;
+ }
+
+ public final
+ ShellExecutor addArgument(final String argument) {
+ this.arguments.add(argument);
+ return this;
+ }
+
+ public final
+ ShellExecutor addArguments(final String... args) {
+ for (String path : args) {
+ this.arguments.add(path);
+ }
+ return this;
+ }
+
+ public final
+ ShellExecutor addArguments(final List paths) {
+ this.arguments.addAll(paths);
+ return this;
+ }
+
+ public final
+ ShellExecutor setExecutable(final String executableName) {
+ this.executableName = executableName;
+ return this;
+ }
+
+ public
+ ShellExecutor setExecutableDirectory(final String executableDirectory) {
+ // MUST be absolute path!!
+ this.executableDirectory = new File(executableDirectory).getAbsolutePath();
+ return this;
+ }
+
+ /**
+ * This will execute as a shell command (bash/cmd/etc) instead of as a forked process.
+ */
+ public
+ ShellExecutor executeAsShellCommand() {
+ this.executeAsShell = true;
+ return this;
+ }
+
+
+
+
+ /**
+ * Sends all output data for this process to "null" in a cross platform method
+ */
+ public
+ ShellExecutor pipeOutputToNull() throws IllegalArgumentException {
+ if (outputStream != null || outputErrorStream != null) {
+ throw new IllegalArgumentException("Cannot pipe shell command to 'null' if an output stream is specified");
+ }
+
+ if (isWindows) {
+ // >NUL on windows
+ pipeToNullString = ">NUL";
+ }
+ else {
+ // we will "pipe" it to /dev/null on *nix
+ pipeToNullString = ">/dev/null 2>&1";
+ }
+
+ return this;
+ }
+
+ /**
+ * @return the executable command issued to the shell
+ */
+ public
+ String getCommand() {
+ StringBuilder execCommand = new StringBuilder();
+
+ Iterator iterator = fullCommand.iterator();
+ while (iterator.hasNext()) {
+ String s = iterator.next();
+
+ execCommand.append(s);
+
+ if (iterator.hasNext()) {
+ execCommand.append(" ");
+ }
+ }
+
+ return execCommand.toString();
+ }
+
+ public
+ int start() {
+ return start(true);
+ }
+
+ public
+ int start(final boolean waitForProcesses) {
+ fullCommand = new ArrayList();
+ if (executeAsShell) {
+ if (isWindows) {
+ fullCommand.add("cmd");
+ fullCommand.add("/c");
+ }
+ else {
+ if (defaultShell == null) {
+ String[] shells = new String[] {"/bin/bash", "/usr/bin/bash",
+ "/bin/pfbash", "/usr/bin/pfbash",
+ "/bin/csh", "/usr/bin/csh",
+ "/bin/pfcsh", "/usr/bin/pfcsh",
+ "/bin/jsh", "/usr/bin/jsh",
+ "/bin/ksh", "/usr/bin/ksh",
+ "/bin/pfksh", "/usr/bin/pfksh",
+ "/bin/ksh93", "/usr/bin/ksh93",
+ "/bin/pfksh93", "/usr/bin/pfksh93",
+ "/bin/pfsh", "/usr/bin/pfsh",
+ "/bin/tcsh", "/usr/bin/tcsh",
+ "/bin/pftcsh", "/usr/bin/pftcsh",
+ "/usr/xpg4/bin/sh", "/usr/xp4/bin/pfsh",
+ "/bin/zsh", "/usr/bin/zsh",
+ "/bin/pfzsh", "/usr/bin/pfzsh",
+ "/bin/sh", "/usr/bin/sh",};
+
+ for (String shell : shells) {
+ if (new File(shell).canExecute()) {
+ defaultShell = shell;
+ break;
+ }
+ }
+ }
+
+ if (defaultShell == null) {
+ throw new RuntimeException("Unable to determine the default shell for the linux/unix environment.");
+ }
+
+ // *nix
+ fullCommand.add(defaultShell);
+ fullCommand.add("-c");
+ }
+
+ // fullCommand.add(this.executableName); // done elsewhere!
+ } else {
+ // shell and working/exe directory are mutually exclusive
+ if (this.workingDirectory != null) {
+ if (!this.workingDirectory.endsWith(File.separator)) {
+ this.workingDirectory += File.separator;
+ }
+ }
+
+ if (this.executableDirectory != null) {
+ if (!this.executableDirectory.endsWith(File.separator)) {
+ this.executableDirectory += File.separator;
+ }
+
+ fullCommand.add(0, this.executableDirectory + this.executableName);
+ } else {
+ fullCommand.add(this.executableName);
+ }
+ }
+
+
+ // if we don't want output...
+ boolean pipeToNull = !pipeToNullString.isEmpty();
+
+ if (executeAsShell && !isWindows) {
+ // when a shell AND on *nix, we have to place ALL the args into a single "arg" that is passed in
+ final StringBuilder stringBuilder = new StringBuilder(1024);
+
+ stringBuilder.append(this.executableName).append(" ");
+
+ for (String arg : this.arguments) {
+ stringBuilder.append(arg).append(" ");
+ }
+
+ if (!arguments.isEmpty()) {
+ if (pipeToNull) {
+ stringBuilder.append(pipeToNullString);
+ }
+ else {
+ // delete last " "
+ stringBuilder.delete(stringBuilder.length() - 1, stringBuilder.length());
+ }
+ }
+
+ fullCommand.add(stringBuilder.toString());
+
+ } else {
+ for (String arg : this.arguments) {
+ if (arg.contains(" ")) {
+ // individual arguments MUST be in their own element in order to be processed properly
+ // (this is how it works on the command line!)
+ String[] split = arg.split(" ");
+ for (String s : split) {
+ s = s.trim();
+ if (!s.isEmpty()) {
+ fullCommand.add(s);
+ }
+ }
+ } else {
+ fullCommand.add(arg);
+ }
+ }
+
+ if (pipeToNull) {
+ fullCommand.add(pipeToNullString);
+ }
+ }
+
+
+
+ ProcessBuilder processBuilder = new ProcessBuilder(fullCommand);
+ if (this.workingDirectory != null) {
+ processBuilder.directory(new File(this.workingDirectory));
+ }
+
+
+ // These env variables are a copy of System.getenv()
+ Map environment = processBuilder.environment();
+
+ // Make sure all shell calls are LANG=en_US.UTF-8 THIS CAN BE OVERRIDDEN
+ if (isMacOsX) {
+ // Enable LANG overrides
+ environment.put("SOFTWARE", "");
+ }
+
+ // "export LANG=en_US.UTF-8"
+ environment.put("LANG", "C");
+
+ if (this.environment != null) {
+ for (Map.Entry e : this.environment.entrySet()) {
+ environment.put(e.getKey(), e.getValue());
+ }
+ }
+
+ // combine these so output is properly piped to null.
+ if (pipeToNull || this.outputErrorStream == null) {
+ processBuilder.redirectErrorStream(true);
+ }
+
+ try {
+ this.process = processBuilder.start();
+ } catch (Exception ex) {
+ if (outputErrorStream != null) {
+ this.outputErrorStream.println("There was a problem executing the program. Details:");
+ ex.printStackTrace(this.outputErrorStream);
+ } else {
+ System.err.println("There was a problem executing the program. Details:");
+ ex.printStackTrace();
+ }
+
+ if (this.process != null) {
+ try {
+ this.process.destroy();
+ this.process = null;
+ } catch (Exception e) {
+ if (outputErrorStream != null) {
+ this.outputErrorStream.println("Error destroying process:");
+ } else {
+ System.err.println("Error destroying process:");
+ }
+ e.printStackTrace(this.outputErrorStream);
+ }
+ }
+ }
+
+ if (this.process != null) {
+ if (this.outputErrorStream == null && this.outputStream == null) {
+ if (!pipeToNull) {
+ NullOutputStream nullOutputStream = new NullOutputStream();
+
+ // readers (read process -> write console)
+ // have to keep the output buffers from filling in the target process.
+ readFromProcess_output = new ProcessProxy("Process Reader: " + this.executableName,
+ this.process.getInputStream(),
+ nullOutputStream);
+ }
+ }
+ // we want to pipe our input/output from process to ourselves
+ else {
+ /*
+ * Proxy the System.out and System.err from the spawned process back
+ * to the user's window. This is important or the spawned process could block.
+ */
+ // readers (read process -> write console)
+ readFromProcess_output = new ProcessProxy("Process Reader: " + this.executableName,
+ this.process.getInputStream(),
+ this.outputStream);
+
+ if (this.outputErrorStream != this.outputStream) {
+ readFromProcess_error = new ProcessProxy("Process Reader: " + this.executableName,
+ this.process.getErrorStream(),
+ this.outputErrorStream);
+ }
+ }
+
+ if (this.inputStream != null) {
+ /*
+ * Proxy System.in from the user's window to the spawned process
+ */
+ // writer (read console -> write process)
+ writeToProcess_input = new ProcessProxy("Process Writer: " + this.executableName,
+ this.inputStream,
+ this.process.getOutputStream());
+ }
+
+
+ // the process can be killed in two ways
+ // If not in IDE, by this shutdown hook. (clicking the red square to terminate a process will not run it's shutdown hooks)
+ // Typing "exit" will always terminate the process
+ Thread hook = new Thread(new Runnable() {
+ @Override
+ public
+ void run() {
+ try {
+ // wait for the READER threads to die (meaning their streams have closed/EOF'd)
+ if (writeToProcess_input != null) {
+ // the INPUT (from stdin). It should be via the InputConsole, but if it's in eclipse,etc -- then this doesn't do anything
+ // We are done reading input, since our program has closed...
+ writeToProcess_input.close();
+ if (createReadWriterThreads) {
+ writeToProcess_input.join();
+ }
+ }
+
+ readFromProcess_output.close();
+ if (createReadWriterThreads) {
+ readFromProcess_output.join();
+ }
+
+ if (readFromProcess_error != null) {
+ readFromProcess_error.close();
+ if (createReadWriterThreads) {
+ readFromProcess_error.join();
+ }
+ }
+ } catch (InterruptedException e) {
+ Thread.currentThread()
+ .interrupt();
+ }
+
+ // forcibly terminate the process when it's streams have closed.
+ // this is for cleanup ONLY, not to actually do anything.
+ ShellExecutor.this.process.destroy();
+ }
+ });
+ hook.setName("ShellExecutor Shutdown Hook for " + this.executableName);
+
+ // add a shutdown hook to make sure that we properly terminate our spawned processes.
+ // hook is NOT set to daemon mode, because this is run during shutdown
+ // add a shutdown hook to make sure that we properly terminate our spawned processes.
+ try {
+ Runtime.getRuntime()
+ .addShutdownHook(hook);
+ } catch (IllegalStateException ignored) {
+ // can happen, safe to ignore
+ }
+
+ if (writeToProcess_input != null) {
+ if (createReadWriterThreads) {
+ writeToProcess_input.start();
+ }
+ else {
+ writeToProcess_input.run();
+ }
+ }
+
+ if (createReadWriterThreads) {
+ readFromProcess_output.start();
+ }
+ else {
+ readFromProcess_output.run();
+ }
+
+ if (readFromProcess_error != null) {
+ if (createReadWriterThreads) {
+ readFromProcess_error.start();
+ }
+ else {
+ readFromProcess_error.run();
+ }
+ }
+
+ int exitValue = 0;
+
+ if (waitForProcesses) {
+ try {
+ this.process.waitFor();
+ exitValue = this.process.exitValue();
+ hook.run();
+ } catch (InterruptedException e) {
+ Thread.currentThread()
+ .interrupt();
+ }
+
+ // remove the shutdown hook now that we've shutdown.
+ try {
+ Runtime.getRuntime().removeShutdownHook(hook);
+ } catch (IllegalStateException ignored) {
+ // can happen, safe to ignore
+ }
+ }
+
+ return exitValue;
+ }
+
+ // 1 means a problem
+ return 1;
+ }
+
+ /**
+ * There will never be a trailing newline character at the end of this output.
+ *
+ * @return A string representing the output of the process, null if the thread for this was interrupted or the output wasn't saved
+ */
+ public
+ String getOutput() {
+ if (byteArrayOutputStream != null) {
+ return getOutput(byteArrayOutputStream);
+ }
+
+ return null;
+ }
+
+ /**
+ * Converts the baos to a string in a safe way. There will never be a trailing newline character at the end of this output. This will
+ * block until there is a line of input available.
+ *
+ * @return A string representing the output of the process, null if the thread for this was interrupted or the output wasn't saved
+ */
+ public
+ String getOutputLineBuffered() {
+ if (byteArrayOutputStream != null) {
+ return getOutputLineBuffered(byteArrayOutputStream);
+ }
+
+ return null;
+ }
+
+ /**
+ * Converts the baos to a string in a safe way. There will never be a trailing newline character at the end of this output.
+ *
+ * @param byteArrayOutputStream the baos that is used in the {@link ShellExecutor#ShellExecutor(PrintStream)} (or similar
+ * calls)
+ *
+ * @return A string representing the output of the process, null if the thread for this was interrupted
+ */
+ public static
+ String getOutput(final ByteArrayOutputStream byteArrayOutputStream) {
+ String s;
+ synchronized (byteArrayOutputStream) {
+ s = byteArrayOutputStream.toString();
+ byteArrayOutputStream.reset();
+ }
+
+ // remove trailing newline character(s)
+ int endIndex = s.lastIndexOf(LINE_SEPARATOR);
+ if (endIndex > -1) {
+ return s.substring(0, endIndex);
+ }
+
+ return s;
+ }
+
+ /**
+ * Converts the baos to a string in a safe way. There will never be a trailing newline character at the end of this output. This will
+ * block until there is a line of input available.
+ *
+ * @param byteArrayOutputStream the baos that is used in the {@link ShellExecutor#ShellExecutor(PrintStream)} (or similar
+ * calls)
+ *
+ * @return A string representing the output of the process, null if the thread for this was interrupted
+ */
+ public static
+ String getOutputLineBuffered(final ByteArrayOutputStream byteArrayOutputStream) {
+ String s;
+ synchronized (byteArrayOutputStream) {
+ try {
+ byteArrayOutputStream.wait();
+ } catch (InterruptedException ignored) {
+ return null;
+ }
+
+ s = byteArrayOutputStream.toString();
+ byteArrayOutputStream.reset();
+ }
+
+ return s;
+ }
+}
diff --git a/src/dorkbox/executor/TeeOutputStream.java b/src/dorkbox/executor/TeeOutputStream.java
new file mode 100644
index 0000000..665d39a
--- /dev/null
+++ b/src/dorkbox/executor/TeeOutputStream.java
@@ -0,0 +1,74 @@
+/*
+ * Copyright 2010 dorkbox, llc
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package dorkbox.executor;
+
+import java.io.IOException;
+import java.io.OutputStream;
+
+public
+class TeeOutputStream extends OutputStream {
+ private final OutputStream out;
+ private final OutputStream tee;
+
+ public
+ TeeOutputStream(OutputStream out, OutputStream tee) {
+ if (out == null) {
+ throw new NullPointerException();
+ }
+ else if (tee == null) {
+ throw new NullPointerException();
+ }
+ else {
+ this.out = out;
+ this.tee = tee;
+ }
+ }
+
+ @Override
+ public
+ void write(int b) throws IOException {
+ this.out.write(b);
+ this.tee.write(b);
+ }
+
+ @Override
+ public
+ void write(byte[] b) throws IOException {
+ this.out.write(b);
+ this.tee.write(b);
+ }
+
+ @Override
+ public
+ void write(byte[] b, int off, int len) throws IOException {
+ this.out.write(b, off, len);
+ this.tee.write(b, off, len);
+ }
+
+ @Override
+ public
+ void flush() throws IOException {
+ this.out.flush();
+ this.tee.flush();
+ }
+
+ @Override
+ public
+ void close() throws IOException {
+ this.out.close();
+ this.tee.close();
+ }
+}