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Easy Redis Java client and Real-Time Data Platform. Valkey compatible. Sync/Async/RxJava3/Reactive API. Client side caching. Over 50 Redis based Java objects and services: JCache API, Apache Tomcat, Hibernate, Spring, Set, Multimap, SortedSet, Map, List, Queue, Deque, Semaphore, Lock, AtomicLong, Map Reduce, Bloom filter, Scheduler, RPC
/* Copyright (c) 2008-2023, Nathan Sweet
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided with the distribution.
* - Neither the name of Esoteric Software nor the names of its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
package com.esotericsoftware.kryo.serializers;
import com.esotericsoftware.kryo.Kryo;
import com.esotericsoftware.kryo.KryoException;
import com.esotericsoftware.kryo.KryoSerializable;
import com.esotericsoftware.kryo.Serializer;
import com.esotericsoftware.kryo.io.Input;
import com.esotericsoftware.kryo.io.Output;
import com.esotericsoftware.kryo.util.ObjectMap;
import java.io.IOException;
import java.io.InputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.ObjectStreamClass;
/** Serializes objects using Java's built in serialization mechanism. Note that this is very inefficient and should be avoided if
* possible.
* @see Serializer
* @see FieldSerializer
* @see KryoSerializable
* @author Nathan Sweet */
public class JavaSerializer extends Serializer {
public void write (Kryo kryo, Output output, Object object) {
try {
ObjectMap graphContext = kryo.getGraphContext();
ObjectOutputStream objectStream = (ObjectOutputStream)graphContext.get(this);
if (objectStream == null) {
objectStream = new ObjectOutputStream(output);
graphContext.put(this, objectStream);
}
objectStream.writeObject(object);
objectStream.flush();
} catch (Exception ex) {
throw new KryoException("Error during Java serialization.", ex);
}
}
public Object read (Kryo kryo, Input input, Class type) {
try {
ObjectMap graphContext = kryo.getGraphContext();
ObjectInputStream objectStream = (ObjectInputStream)graphContext.get(this);
if (objectStream == null) {
objectStream = new ObjectInputStreamWithKryoClassLoader(input, kryo);
graphContext.put(this, objectStream);
}
return objectStream.readObject();
} catch (Exception ex) {
throw new KryoException("Error during Java deserialization.", ex);
}
}
/** {@link ObjectInputStream} uses the last user-defined {@link ClassLoader}, which may not be the correct one. This is a known
* Java issue and is often solved by using a specific class loader. See:
* https://github.com/apache/spark/blob/v1.6.3/streaming/src/main/scala/org/apache/spark/streaming/Checkpoint.scala#L154
* https://issues.apache.org/jira/browse/GROOVY-1627 */
private static class ObjectInputStreamWithKryoClassLoader extends ObjectInputStream {
private final Kryo kryo;
ObjectInputStreamWithKryoClassLoader (InputStream in, Kryo kryo) throws IOException {
super(in);
this.kryo = kryo;
}
protected Class resolveClass (ObjectStreamClass type) {
try {
return Class.forName(type.getName(), false, kryo.getClassLoader());
} catch (ClassNotFoundException ignored) {}
try {
return super.resolveClass(type);
} catch (ClassNotFoundException ex) {
throw new KryoException("Class not found: " + type.getName(), ex);
} catch (IOException ex) {
throw new KryoException("Could not load class: " + type.getName(), ex);
}
}
}
}
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