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This commit is contained in:
nathan 2018-01-15 16:01:10 +01:00
parent c824a7f8a9
commit f64118bae1
10 changed files with 345 additions and 269 deletions
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132
src/dorkbox/util/serialization/ArraysAsListSerializer.java
View File

@ -15,16 +15,16 @@
*/
package dorkbox.util.serialization;
import com.esotericsoftware.kryo.Kryo;
import com.esotericsoftware.kryo.Serializer;
import com.esotericsoftware.kryo.io.Input;
import com.esotericsoftware.kryo.io.Output;
import java.lang.reflect.Array;
import java.lang.reflect.Field;
import java.util.Arrays;
import java.util.List;
import com.esotericsoftware.kryo.Kryo;
import com.esotericsoftware.kryo.Serializer;
import com.esotericsoftware.kryo.io.Input;
import com.esotericsoftware.kryo.io.Output;
/**
* A kryo {@link Serializer} for lists created via {@link Arrays#asList(Object...)}.
* <p>
@ -34,78 +34,92 @@ import java.util.List;
*
* @author <a href="mailto:martin.grotzke@javakaffee.de">Martin Grotzke</a>
*/
public class ArraysAsListSerializer extends Serializer<List<?>> {
public
class ArraysAsListSerializer extends Serializer<List<?>> {
private static
Class<?> getPrimitiveWrapperClass(final Class<?> c) {
if (c.isPrimitive()) {
if (c.equals(Long.TYPE)) {
return Long.class;
}
else if (c.equals(Integer.TYPE)) {
return Integer.class;
}
else if (c.equals(Double.TYPE)) {
return Double.class;
}
else if (c.equals(Float.TYPE)) {
return Float.class;
}
else if (c.equals(Boolean.TYPE)) {
return Boolean.class;
}
else if (c.equals(Character.TYPE)) {
return Character.class;
}
else if (c.equals(Short.TYPE)) {
return Short.class;
}
else if (c.equals(Byte.TYPE)) {
return Byte.class;
}
}
return c;
}
private Field _arrayField;
public ArraysAsListSerializer() {
public
ArraysAsListSerializer() {
try {
_arrayField = Class.forName( "java.util.Arrays$ArrayList" ).getDeclaredField( "a" );
_arrayField.setAccessible( true );
} catch ( final Exception e ) {
throw new RuntimeException( e );
_arrayField = Class.forName("java.util.Arrays$ArrayList")
.getDeclaredField("a");
_arrayField.setAccessible(true);
} catch (final Exception e) {
throw new RuntimeException(e);
}
// Immutable causes #copy(obj) to return the original object
setImmutable(true);
}
@Override
public List<?> read(final Kryo kryo, final Input input, final Class<List<?>> type) {
final int length = input.readInt(true);
Class<?> componentType = kryo.readClass( input ).getType();
if (componentType.isPrimitive()) {
componentType = getPrimitiveWrapperClass(componentType);
}
public
void write(final Kryo kryo, final Output output, final List<?> obj) {
try {
final Object items = Array.newInstance( componentType, length );
for( int i = 0; i < length; i++ ) {
Array.set(items, i, kryo.readClassAndObject( input ));
final Object[] array = (Object[]) _arrayField.get(obj);
output.writeInt(array.length, true);
final Class<?> componentType = array.getClass()
.getComponentType();
kryo.writeClass(output, componentType);
for (final Object item : array) {
kryo.writeClassAndObject(output, item);
}
return Arrays.asList( (Object[])items );
} catch ( final Exception e ) {
throw new RuntimeException( e );
} catch (final RuntimeException e) {
// Don't eat and wrap RuntimeExceptions because the ObjectBuffer.write...
// handles SerializationException specifically (resizing the buffer)...
throw e;
} catch (final Exception e) {
throw new RuntimeException(e);
}
}
@Override
public void write(final Kryo kryo, final Output output, final List<?> obj) {
public
List<?> read(final Kryo kryo, final Input input, final Class<List<?>> type) {
final int length = input.readInt(true);
Class<?> componentType = kryo.readClass(input)
.getType();
if (componentType.isPrimitive()) {
componentType = getPrimitiveWrapperClass(componentType);
}
try {
final Object[] array = (Object[]) _arrayField.get( obj );
output.writeInt(array.length, true);
final Class<?> componentType = array.getClass().getComponentType();
kryo.writeClass( output, componentType );
for( final Object item : array ) {
kryo.writeClassAndObject( output, item );
final Object items = Array.newInstance(componentType, length);
for (int i = 0; i < length; i++) {
Array.set(items, i, kryo.readClassAndObject(input));
}
} catch ( final RuntimeException e ) {
// Don't eat and wrap RuntimeExceptions because the ObjectBuffer.write...
// handles SerializationException specifically (resizing the buffer)...
throw e;
} catch ( final Exception e ) {
throw new RuntimeException( e );
return Arrays.asList((Object[]) items);
} catch (final Exception e) {
throw new RuntimeException(e);
}
}
private static Class<?> getPrimitiveWrapperClass(final Class<?> c) {
if (c.isPrimitive()) {
if (c.equals(Long.TYPE)) {
return Long.class;
} else if (c.equals(Integer.TYPE)) {
return Integer.class;
} else if (c.equals(Double.TYPE)) {
return Double.class;
} else if (c.equals(Float.TYPE)) {
return Float.class;
} else if (c.equals(Boolean.TYPE)) {
return Boolean.class;
} else if (c.equals(Character.TYPE)) {
return Character.class;
} else if (c.equals(Short.TYPE)) {
return Short.class;
} else if (c.equals(Byte.TYPE)) {
return Byte.class;
}
}
return c;
}
}

13
src/dorkbox/util/serialization/EccPrivateKeySerializer.java
View File

@ -15,11 +15,8 @@
*/
package dorkbox.util.serialization;
import com.esotericsoftware.kryo.Kryo;
import com.esotericsoftware.kryo.Serializer;
import com.esotericsoftware.kryo.io.Input;
import com.esotericsoftware.kryo.io.Output;
import com.esotericsoftware.reflectasm.FieldAccess;
import java.math.BigInteger;
import org.bouncycastle.asn1.ASN1ObjectIdentifier;
import org.bouncycastle.asn1.x9.X9ECParameters;
import org.bouncycastle.crypto.ec.CustomNamedCurves;
@ -28,7 +25,11 @@ import org.bouncycastle.crypto.params.ECPrivateKeyParameters;
import org.bouncycastle.math.ec.ECCurve;
import org.bouncycastle.math.ec.ECPoint;
import java.math.BigInteger;
import com.esotericsoftware.kryo.Kryo;
import com.esotericsoftware.kryo.Serializer;
import com.esotericsoftware.kryo.io.Input;
import com.esotericsoftware.kryo.io.Output;
import com.esotericsoftware.reflectasm.FieldAccess;
/**
* Only public keys are ever sent across the wire.

11
src/dorkbox/util/serialization/EccPublicKeySerializer.java
View File

@ -15,16 +15,17 @@
*/
package dorkbox.util.serialization;
import com.esotericsoftware.kryo.Kryo;
import com.esotericsoftware.kryo.Serializer;
import com.esotericsoftware.kryo.io.Input;
import com.esotericsoftware.kryo.io.Output;
import java.math.BigInteger;
import org.bouncycastle.crypto.params.ECDomainParameters;
import org.bouncycastle.crypto.params.ECPublicKeyParameters;
import org.bouncycastle.math.ec.ECCurve;
import org.bouncycastle.math.ec.ECPoint;
import java.math.BigInteger;
import com.esotericsoftware.kryo.Kryo;
import com.esotericsoftware.kryo.Serializer;
import com.esotericsoftware.kryo.io.Input;
import com.esotericsoftware.kryo.io.Output;
/**
* Only public keys are ever sent across the wire.

74
src/dorkbox/util/serialization/FieldAnnotationAwareSerializer.java
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@ -16,17 +16,17 @@
*/
package dorkbox.util.serialization;
import com.esotericsoftware.kryo.Kryo;
import com.esotericsoftware.kryo.Serializer;
import com.esotericsoftware.kryo.factories.SerializerFactory;
import com.esotericsoftware.kryo.serializers.FieldSerializer;
import java.lang.annotation.Annotation;
import java.lang.reflect.Field;
import java.util.Collection;
import java.util.HashSet;
import java.util.Set;
import com.esotericsoftware.kryo.Kryo;
import com.esotericsoftware.kryo.Serializer;
import com.esotericsoftware.kryo.factories.SerializerFactory;
import com.esotericsoftware.kryo.serializers.FieldSerializer;
/**
* A kryo {@link FieldSerializer} that allows to exclusively include or exclude fields that
* are attributed with user-specific annotations. This can be for example useful when serializing beans that carry
@ -51,12 +51,14 @@ import java.util.Set;
* @author <a href="mailto:rafael.wth@web.de">Rafael Winterhalter</a>
* @author <a href="mailto:martin.grotzke@javakaffee.de">Martin Grotzke</a>
*/
public class FieldAnnotationAwareSerializer<T> extends FieldSerializer<T> {
public
class FieldAnnotationAwareSerializer<T> extends FieldSerializer<T> {
/**
* A factory for creating instances of {@link FieldAnnotationAwareSerializer}.
*/
public static class Factory implements SerializerFactory {
public static
class Factory implements SerializerFactory {
private final Collection<Class<? extends Annotation>> marked;
private final boolean disregarding;
@ -66,21 +68,24 @@ public class FieldAnnotationAwareSerializer<T> extends FieldSerializer<T> {
*com.esotericsoftware.kryo.Kryo, Class, java.util.Collection, boolean)}
* for additional information on the constructor parameters.
*
* @param marked The annotations that will be considered of the resulting converter.
* @param marked The annotations that will be considered of the resulting converter.
* @param disregarding If {@code true}, the serializer will ignore all annotated fields,
* if set to {@code false} it will exclusively look at annotated fields.
* if set to {@code false} it will exclusively look at annotated fields.
*/
public Factory(final Collection<Class<? extends Annotation>> marked, final boolean disregarding) {
public
Factory(final Collection<Class<? extends Annotation>> marked, final boolean disregarding) {
this.marked = marked;
this.disregarding = disregarding;
}
@Override
public Serializer<?> makeSerializer(final Kryo kryo, final Class<?> type) {
public
Serializer<?> makeSerializer(final Kryo kryo, final Class<?> type) {
return new FieldAnnotationAwareSerializer<Object>(kryo, type, this.marked, this.disregarding);
}
}
private final Set<Class<? extends Annotation>> marked;
/**
@ -94,21 +99,22 @@ public class FieldAnnotationAwareSerializer<T> extends FieldSerializer<T> {
/**
* Creates a new field annotation aware serializer.
*
* @param kryo The {@link Kryo} instace.
* @param type The type of the class being serialized.
* @param marked The annotations this serializer considers for its serialization process. Be aware tha
* a serializer with {@code disregarding} set to {@code false} will never be able to
* serialize fields that are not annotated with any of these annotations since it is not
* possible to add fields to a {@link FieldSerializer} once it is created. See the
* documentation to {@link FieldAnnotationAwareSerializer#addAnnotation(Class)} and
* {@link FieldAnnotationAwareSerializer#removeAnnotation(Class)} for further information.
* @param kryo The {@link Kryo} instace.
* @param type The type of the class being serialized.
* @param marked The annotations this serializer considers for its serialization process. Be aware tha
* a serializer with {@code disregarding} set to {@code false} will never be able to
* serialize fields that are not annotated with any of these annotations since it is not
* possible to add fields to a {@link FieldSerializer} once it is created. See the
* documentation to {@link FieldAnnotationAwareSerializer#addAnnotation(Class)} and
* {@link FieldAnnotationAwareSerializer#removeAnnotation(Class)} for further information.
* @param disregarding If {@code true}, the serializer will ignore all annotated fields,
* if set to {@code false} it will exclusively look at annotated fields.
* if set to {@code false} it will exclusively look at annotated fields.
*/
public FieldAnnotationAwareSerializer(final Kryo kryo,
final Class<?> type,
final Collection<Class<? extends Annotation>> marked,
final boolean disregarding) {
public
FieldAnnotationAwareSerializer(final Kryo kryo,
final Class<?> type,
final Collection<Class<? extends Annotation>> marked,
final boolean disregarding) {
super(kryo, type);
this.disregarding = disregarding;
this.marked = new HashSet<Class<? extends Annotation>>(marked);
@ -116,7 +122,8 @@ public class FieldAnnotationAwareSerializer<T> extends FieldSerializer<T> {
}
@Override
protected void rebuildCachedFields() {
protected
void rebuildCachedFields() {
// In order to avoid rebuilding the cached fields twice, the super constructor's call
// to this method will be suppressed. This can be done by a simple check of the initialization
// state of a property of this subclass.
@ -127,7 +134,8 @@ public class FieldAnnotationAwareSerializer<T> extends FieldSerializer<T> {
removeFields();
}
private void removeFields() {
private
void removeFields() {
final CachedField<?>[] cachedFields = getFields();
for (final CachedField<?> cachedField : cachedFields) {
final Field field = cachedField.getField();
@ -140,11 +148,13 @@ public class FieldAnnotationAwareSerializer<T> extends FieldSerializer<T> {
}
}
private boolean isRemove(final Field field) {
private
boolean isRemove(final Field field) {
return !isMarked(field) ^ this.disregarding;
}
private boolean isMarked(final Field field) {
private
boolean isMarked(final Field field) {
for (final Annotation annotation : field.getAnnotations()) {
final Class<? extends Annotation> annotationType = annotation.annotationType();
if (this.marked.contains(annotationType)) {
@ -167,9 +177,11 @@ public class FieldAnnotationAwareSerializer<T> extends FieldSerializer<T> {
* include new fields to a serializer that exclusively serializes annotated fields.
*
* @param clazz The annotation class to be added.
*
* @return {@code true} if the method call had an effect.
*/
public boolean addAnnotation(final Class<? extends Annotation> clazz) {
public
boolean addAnnotation(final Class<? extends Annotation> clazz) {
if (this.disregarding && this.marked.add(clazz)) {
initializeCachedFields();
return true;
@ -190,9 +202,11 @@ public class FieldAnnotationAwareSerializer<T> extends FieldSerializer<T> {
* include new fields to a serializer that ignores annotated fields for serialization.
*
* @param clazz The annotation class to be removed.
*
* @return {@code true} if the method call had an effect.
*/
public boolean removeAnnotation(final Class<? extends Annotation> clazz) {
public
boolean removeAnnotation(final Class<? extends Annotation> clazz) {
if (!this.disregarding && this.marked.remove(clazz)) {
initializeCachedFields();
return true;

8
src/dorkbox/util/serialization/FileSerializer.java
View File

@ -14,13 +14,15 @@ public
class FileSerializer extends Serializer<File> {
@Override
public void write(Kryo kryo, Output output, File file) {
public
void write(Kryo kryo, Output output, File file) {
output.writeString(file.getPath());
}
@Override
public File read(Kryo kryo, Input input, Class<File> type) {
String path = input.readString();
public
File read(Kryo kryo, Input input, Class<File> type) {
String path = input.readString();
return new File(path);
}
}

17
src/dorkbox/util/serialization/IesParametersSerializer.java
View File

@ -15,19 +15,22 @@
*/
package dorkbox.util.serialization;
import org.bouncycastle.crypto.params.IESParameters;
import com.esotericsoftware.kryo.Kryo;
import com.esotericsoftware.kryo.Serializer;
import com.esotericsoftware.kryo.io.Input;
import com.esotericsoftware.kryo.io.Output;
import org.bouncycastle.crypto.params.IESParameters;
/**
* Only public keys are ever sent across the wire.
* Only public keys are ever sent across the wire.
*/
public class IesParametersSerializer extends Serializer<IESParameters> {
public
class IesParametersSerializer extends Serializer<IESParameters> {
@Override
public void write(Kryo kryo, Output output, IESParameters key) {
public
void write(Kryo kryo, Output output, IESParameters key) {
byte[] bytes;
int length;
@ -51,8 +54,8 @@ public class IesParametersSerializer extends Serializer<IESParameters> {
@SuppressWarnings("rawtypes")
@Override
public IESParameters read (Kryo kryo, Input input, Class type) {
public
IESParameters read(Kryo kryo, Input input, Class type) {
int length;
/////////////
@ -69,5 +72,5 @@ public class IesParametersSerializer extends Serializer<IESParameters> {
int macKeySize = input.readInt(true);
return new IESParameters(derivation, encoding, macKeySize);
}
}
}

17
src/dorkbox/util/serialization/IesWithCipherParametersSerializer.java
View File

@ -15,19 +15,22 @@
*/
package dorkbox.util.serialization;
import org.bouncycastle.crypto.params.IESWithCipherParameters;
import com.esotericsoftware.kryo.Kryo;
import com.esotericsoftware.kryo.Serializer;
import com.esotericsoftware.kryo.io.Input;
import com.esotericsoftware.kryo.io.Output;
import org.bouncycastle.crypto.params.IESWithCipherParameters;
/**
* Only public keys are ever sent across the wire.
* Only public keys are ever sent across the wire.
*/
public class IesWithCipherParametersSerializer extends Serializer<IESWithCipherParameters> {
public
class IesWithCipherParametersSerializer extends Serializer<IESWithCipherParameters> {
@Override
public void write(Kryo kryo, Output output, IESWithCipherParameters key) {
public
void write(Kryo kryo, Output output, IESWithCipherParameters key) {
byte[] bytes;
int length;
@ -55,8 +58,8 @@ public class IesWithCipherParametersSerializer extends Serializer<IESWithCipherP
@SuppressWarnings("rawtypes")
@Override
public IESWithCipherParameters read (Kryo kryo, Input input, Class type) {
public
IESWithCipherParameters read(Kryo kryo, Input input, Class type) {
int length;
/////////////
@ -76,5 +79,5 @@ public class IesWithCipherParametersSerializer extends Serializer<IESWithCipherP
int cipherKeySize = input.readInt(true);
return new IESWithCipherParameters(derivation, encoding, macKeySize, cipherKeySize);
}
}
}

45
src/dorkbox/util/serialization/RsaPrivateKeySerializer.java
View File

@ -15,33 +15,38 @@
*/
package dorkbox.util.serialization;
import java.math.BigInteger;
import org.bouncycastle.crypto.params.RSAPrivateCrtKeyParameters;
import com.esotericsoftware.kryo.Kryo;
import com.esotericsoftware.kryo.Serializer;
import com.esotericsoftware.kryo.io.Input;
import com.esotericsoftware.kryo.io.Output;
import org.bouncycastle.crypto.params.RSAPrivateCrtKeyParameters;
import java.math.BigInteger;
/**
* Only public keys are ever sent across the wire.
* Only public keys are ever sent across the wire.
*/
public class RsaPrivateKeySerializer extends Serializer<RSAPrivateCrtKeyParameters> {
public
class RsaPrivateKeySerializer extends Serializer<RSAPrivateCrtKeyParameters> {
@Override
public void write(Kryo kryo, Output output, RSAPrivateCrtKeyParameters key) {
public
void write(Kryo kryo, Output output, RSAPrivateCrtKeyParameters key) {
byte[] bytes;
int length;
/////////////
bytes = key.getDP().toByteArray();
bytes = key.getDP()
.toByteArray();
length = bytes.length;
output.writeInt(length, true);
output.writeBytes(bytes, 0, length);
/////////////
bytes = key.getDQ().toByteArray();
bytes = key.getDQ()
.toByteArray();
length = bytes.length;
output.writeInt(length, true);
@ -49,7 +54,8 @@ public class RsaPrivateKeySerializer extends Serializer<RSAPrivateCrtKeyParamete
/////////////
bytes = key.getExponent().toByteArray();
bytes = key.getExponent()
.toByteArray();
length = bytes.length;
output.writeInt(length, true);
@ -57,7 +63,8 @@ public class RsaPrivateKeySerializer extends Serializer<RSAPrivateCrtKeyParamete
/////////////
bytes = key.getModulus().toByteArray();
bytes = key.getModulus()
.toByteArray();
length = bytes.length;
output.writeInt(length, true);
@ -65,7 +72,8 @@ public class RsaPrivateKeySerializer extends Serializer<RSAPrivateCrtKeyParamete
/////////////
bytes = key.getP().toByteArray();
bytes = key.getP()
.toByteArray();
length = bytes.length;
output.writeInt(length, true);
@ -73,7 +81,8 @@ public class RsaPrivateKeySerializer extends Serializer<RSAPrivateCrtKeyParamete
/////////////
bytes = key.getPublicExponent().toByteArray();
bytes = key.getPublicExponent()
.toByteArray();
length = bytes.length;
output.writeInt(length, true);
@ -81,7 +90,8 @@ public class RsaPrivateKeySerializer extends Serializer<RSAPrivateCrtKeyParamete
/////////////
bytes = key.getQ().toByteArray();
bytes = key.getQ()
.toByteArray();
length = bytes.length;
output.writeInt(length, true);
@ -89,7 +99,8 @@ public class RsaPrivateKeySerializer extends Serializer<RSAPrivateCrtKeyParamete
/////////////
bytes = key.getQInv().toByteArray();
bytes = key.getQInv()
.toByteArray();
length = bytes.length;
output.writeInt(length, true);
@ -98,8 +109,8 @@ public class RsaPrivateKeySerializer extends Serializer<RSAPrivateCrtKeyParamete
@SuppressWarnings("rawtypes")
@Override
public RSAPrivateCrtKeyParameters read (Kryo kryo, Input input, Class type) {
public
RSAPrivateCrtKeyParameters read(Kryo kryo, Input input, Class type) {
byte[] bytes;
int length;
@ -152,5 +163,5 @@ public class RsaPrivateKeySerializer extends Serializer<RSAPrivateCrtKeyParamete
BigInteger qInv = new BigInteger(bytes);
return new RSAPrivateCrtKeyParameters(modulus, publicExponent, exponent, P, q, DP, DQ, qInv);
}
}
}

27
src/dorkbox/util/serialization/RsaPublicKeySerializer.java
View File

@ -15,33 +15,38 @@
*/
package dorkbox.util.serialization;
import java.math.BigInteger;
import org.bouncycastle.crypto.params.RSAKeyParameters;
import com.esotericsoftware.kryo.Kryo;
import com.esotericsoftware.kryo.Serializer;
import com.esotericsoftware.kryo.io.Input;
import com.esotericsoftware.kryo.io.Output;
import org.bouncycastle.crypto.params.RSAKeyParameters;
import java.math.BigInteger;
/**
* Only public keys are ever sent across the wire.
* Only public keys are ever sent across the wire.
*/
public class RsaPublicKeySerializer extends Serializer<RSAKeyParameters> {
public
class RsaPublicKeySerializer extends Serializer<RSAKeyParameters> {
@Override
public void write(Kryo kryo, Output output, RSAKeyParameters key) {
public
void write(Kryo kryo, Output output, RSAKeyParameters key) {
byte[] bytes;
int length;
///////////
bytes = key.getModulus().toByteArray();
bytes = key.getModulus()
.toByteArray();
length = bytes.length;
output.writeInt(length, true);
output.writeBytes(bytes, 0, length);
/////////////
bytes = key.getExponent().toByteArray();
bytes = key.getExponent()
.toByteArray();
length = bytes.length;
output.writeInt(length, true);
@ -50,8 +55,8 @@ public class RsaPublicKeySerializer extends Serializer<RSAKeyParameters> {
@SuppressWarnings("rawtypes")
@Override
public RSAKeyParameters read (Kryo kryo, Input input, Class type) {
public
RSAKeyParameters read(Kryo kryo, Input input, Class type) {
byte[] bytes;
int length;
@ -68,5 +73,5 @@ public class RsaPublicKeySerializer extends Serializer<RSAKeyParameters> {
BigInteger exponent = new BigInteger(bytes);
return new RSAKeyParameters(false, modulus, exponent);
}
}
}

270
src/dorkbox/util/serialization/UnmodifiableCollectionsSerializer.java
View File

@ -16,14 +16,28 @@
*/
package dorkbox.util.serialization;
import java.lang.reflect.Field;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.SortedMap;
import java.util.SortedSet;
import java.util.TreeMap;
import java.util.TreeSet;
import com.esotericsoftware.kryo.Kryo;
import com.esotericsoftware.kryo.Serializer;
import com.esotericsoftware.kryo.io.Input;
import com.esotericsoftware.kryo.io.Output;
import dorkbox.util.SerializationManager;
import java.lang.reflect.Field;
import java.util.*;
import dorkbox.util.SerializationManager;
/**
* A kryo {@link Serializer} for unmodifiable {@link Collection}s and {@link Map}s
@ -31,135 +45,102 @@ import java.util.*;
*
* @author <a href="mailto:martin.grotzke@javakaffee.de">Martin Grotzke</a>
*/
public class UnmodifiableCollectionsSerializer extends Serializer<Object> {
public
class UnmodifiableCollectionsSerializer extends Serializer<Object> {
private
enum UnmodifiableCollection {
COLLECTION(Collections.unmodifiableCollection(Arrays.asList(""))
.getClass(), SOURCE_COLLECTION_FIELD) {
@Override
public
Object create(final Object sourceCollection) {
return Collections.unmodifiableCollection((Collection<?>) sourceCollection);
}
}, RANDOM_ACCESS_LIST(Collections.unmodifiableList(new ArrayList<Void>())
.getClass(), SOURCE_COLLECTION_FIELD) {
@Override
public
Object create(final Object sourceCollection) {
return Collections.unmodifiableList((List<?>) sourceCollection);
}
}, LIST(Collections.unmodifiableList(new LinkedList<Void>())
.getClass(), SOURCE_COLLECTION_FIELD) {
@Override
public
Object create(final Object sourceCollection) {
return Collections.unmodifiableList((List<?>) sourceCollection);
}
}, SET(Collections.unmodifiableSet(new HashSet<Void>())
.getClass(), SOURCE_COLLECTION_FIELD) {
@Override
public
Object create(final Object sourceCollection) {
return Collections.unmodifiableSet((Set<?>) sourceCollection);
}
}, SORTED_SET(Collections.unmodifiableSortedSet(new TreeSet<Void>())
.getClass(), SOURCE_COLLECTION_FIELD) {
@Override
public
Object create(final Object sourceCollection) {
return Collections.unmodifiableSortedSet((SortedSet<?>) sourceCollection);
}
}, MAP(Collections.unmodifiableMap(new HashMap<Void, Void>())
.getClass(), SOURCE_MAP_FIELD) {
@Override
public
Object create(final Object sourceCollection) {
return Collections.unmodifiableMap((Map<?, ?>) sourceCollection);
}
}, SORTED_MAP(Collections.unmodifiableSortedMap(new TreeMap<Void, Void>())
.getClass(), SOURCE_MAP_FIELD) {
@Override
public
Object create(final Object sourceCollection) {
return Collections.unmodifiableSortedMap((SortedMap<?, ?>) sourceCollection);
}
};
static
UnmodifiableCollection valueOfType(final Class<?> type) {
for (final UnmodifiableCollection item : values()) {
if (item.type.equals(type)) {
return item;
}
}
throw new IllegalArgumentException("The type " + type + " is not supported.");
}
private final Class<?> type;
private final Field sourceCollectionField;
UnmodifiableCollection(final Class<?> type, final Field sourceCollectionField) {
this.type = type;
this.sourceCollectionField = sourceCollectionField;
}
public abstract
Object create(Object sourceCollection);
}
private static final Field SOURCE_COLLECTION_FIELD;
private static final Field SOURCE_MAP_FIELD;
static {
try {
SOURCE_COLLECTION_FIELD = Class.forName("java.util.Collections$UnmodifiableCollection" )
.getDeclaredField("c");
SOURCE_COLLECTION_FIELD.setAccessible( true );
SOURCE_COLLECTION_FIELD = Class.forName("java.util.Collections$UnmodifiableCollection")
.getDeclaredField("c");
SOURCE_COLLECTION_FIELD.setAccessible(true);
SOURCE_MAP_FIELD = Class.forName("java.util.Collections$UnmodifiableMap" )
.getDeclaredField("m");
SOURCE_MAP_FIELD.setAccessible( true );
} catch ( final Exception e ) {
throw new RuntimeException("Could not access source collection" +
" field in java.util.Collections$UnmodifiableCollection.", e );
SOURCE_MAP_FIELD = Class.forName("java.util.Collections$UnmodifiableMap")
.getDeclaredField("m");
SOURCE_MAP_FIELD.setAccessible(true);
} catch (final Exception e) {
throw new RuntimeException("Could not access source collection" + " field in java.util.Collections$UnmodifiableCollection.", e);
}
}
@Override
public Object read(final Kryo kryo, final Input input, final Class<Object> clazz) {
final int ordinal = input.readInt( true );
final UnmodifiableCollection unmodifiableCollection = UnmodifiableCollection.values()[ordinal];
final Object sourceCollection = kryo.readClassAndObject( input );
return unmodifiableCollection.create( sourceCollection );
}
@Override
public void write(final Kryo kryo, final Output output, final Object object) {
try {
final UnmodifiableCollection unmodifiableCollection = UnmodifiableCollection.valueOfType( object.getClass() );
// the ordinal could be replaced by s.th. else (e.g. a explicitely managed "id")
output.writeInt( unmodifiableCollection.ordinal(), true );
kryo.writeClassAndObject( output, unmodifiableCollection.sourceCollectionField.get( object ) );
} catch ( final RuntimeException e ) {
// Don't eat and wrap RuntimeExceptions because the ObjectBuffer.write...
// handles SerializationException specifically (resizing the buffer)...
throw e;
} catch ( final Exception e ) {
throw new RuntimeException( e );
}
}
@Override
public Object copy(Kryo kryo, Object original) {
try {
final UnmodifiableCollection unmodifiableCollection = UnmodifiableCollection.valueOfType( original.getClass() );
Object sourceCollectionCopy = kryo.copy(unmodifiableCollection.sourceCollectionField.get(original));
return unmodifiableCollection.create( sourceCollectionCopy );
} catch ( final RuntimeException e ) {
// Don't eat and wrap RuntimeExceptions
throw e;
} catch ( final Exception e ) {
throw new RuntimeException( e );
}
}
private static enum UnmodifiableCollection {
COLLECTION( Collections.unmodifiableCollection( Arrays.asList( "" ) ).getClass(), SOURCE_COLLECTION_FIELD ){
@Override
public Object create( final Object sourceCollection ) {
return Collections.unmodifiableCollection( (Collection<?>) sourceCollection );
}
},
RANDOM_ACCESS_LIST( Collections.unmodifiableList( new ArrayList<Void>() ).getClass(), SOURCE_COLLECTION_FIELD ){
@Override
public Object create( final Object sourceCollection ) {
return Collections.unmodifiableList( (List<?>) sourceCollection );
}
},
LIST( Collections.unmodifiableList( new LinkedList<Void>() ).getClass(), SOURCE_COLLECTION_FIELD ){
@Override
public Object create( final Object sourceCollection ) {
return Collections.unmodifiableList( (List<?>) sourceCollection );
}
},
SET( Collections.unmodifiableSet( new HashSet<Void>() ).getClass(), SOURCE_COLLECTION_FIELD ){
@Override
public Object create( final Object sourceCollection ) {
return Collections.unmodifiableSet( (Set<?>) sourceCollection );
}
},
SORTED_SET( Collections.unmodifiableSortedSet( new TreeSet<Void>() ).getClass(), SOURCE_COLLECTION_FIELD ){
@Override
public Object create( final Object sourceCollection ) {
return Collections.unmodifiableSortedSet( (SortedSet<?>) sourceCollection );
}
},
MAP( Collections.unmodifiableMap( new HashMap<Void, Void>() ).getClass(), SOURCE_MAP_FIELD ) {
@Override
public Object create( final Object sourceCollection ) {
return Collections.unmodifiableMap( (Map<?, ?>) sourceCollection );
}
},
SORTED_MAP( Collections.unmodifiableSortedMap( new TreeMap<Void, Void>() ).getClass(), SOURCE_MAP_FIELD ) {
@Override
public Object create( final Object sourceCollection ) {
return Collections.unmodifiableSortedMap( (SortedMap<?, ?>) sourceCollection );
}
};
private final Class<?> type;
private final Field sourceCollectionField;
private UnmodifiableCollection( final Class<?> type, final Field sourceCollectionField ) {
this.type = type;
this.sourceCollectionField = sourceCollectionField;
}
/**
* @param sourceCollection
*/
public abstract Object create( Object sourceCollection );
static UnmodifiableCollection valueOfType( final Class<?> type ) {
for( final UnmodifiableCollection item : values() ) {
if ( item.type.equals( type ) ) {
return item;
}
}
throw new IllegalArgumentException( "The type " + type + " is not supported." );
}
}
/**
* Creates a new {@link UnmodifiableCollectionsSerializer} and registers its serializer
* for the several unmodifiable Collections that can be created via {@link Collections},
@ -174,12 +155,53 @@ public class UnmodifiableCollectionsSerializer extends Serializer<Object> {
* @see Collections#unmodifiableMap(Map)
* @see Collections#unmodifiableSortedMap(SortedMap)
*/
public static void registerSerializers( final SerializationManager manager ) {
public static
void registerSerializers(final SerializationManager manager) {
final UnmodifiableCollectionsSerializer serializer = new UnmodifiableCollectionsSerializer();
UnmodifiableCollection.values();
for ( final UnmodifiableCollection item : UnmodifiableCollection.values() ) {
manager.register( item.type, serializer );
for (final UnmodifiableCollection item : UnmodifiableCollection.values()) {
manager.register(item.type, serializer);
}
}
@Override
public
void write(final Kryo kryo, final Output output, final Object object) {
try {
final UnmodifiableCollection unmodifiableCollection = UnmodifiableCollection.valueOfType(object.getClass());
// the ordinal could be replaced by s.th. else (e.g. a explicitely managed "id")
output.writeInt(unmodifiableCollection.ordinal(), true);
kryo.writeClassAndObject(output, unmodifiableCollection.sourceCollectionField.get(object));
} catch (final RuntimeException e) {
// Don't eat and wrap RuntimeExceptions because the ObjectBuffer.write...
// handles SerializationException specifically (resizing the buffer)...
throw e;
} catch (final Exception e) {
throw new RuntimeException(e);
}
}
@Override
public
Object read(final Kryo kryo, final Input input, final Class<Object> clazz) {
final int ordinal = input.readInt(true);
final UnmodifiableCollection unmodifiableCollection = UnmodifiableCollection.values()[ordinal];
final Object sourceCollection = kryo.readClassAndObject(input);
return unmodifiableCollection.create(sourceCollection);
}
@Override
public
Object copy(Kryo kryo, Object original) {
try {
final UnmodifiableCollection unmodifiableCollection = UnmodifiableCollection.valueOfType(original.getClass());
Object sourceCollectionCopy = kryo.copy(unmodifiableCollection.sourceCollectionField.get(original));
return unmodifiableCollection.create(sourceCollectionCopy);
} catch (final RuntimeException e) {
// Don't eat and wrap RuntimeExceptions
throw e;
} catch (final Exception e) {
throw new RuntimeException(e);
}
}
}