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Fork of Esoteric Software's Kryo built by Nathan Sweet that replaces Minlog with slf4j as the logging facade. This contains the shaded reflectasm jar to prevent conflicts with other versions of asm.
The newest version!
/* Copyright (c) 2008, 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 static com.esotericsoftware.kryo.util.UnsafeUtil.unsafe;
import java.lang.reflect.Field;
import sun.misc.Unsafe;
import com.esotericsoftware.kryo.Kryo;
import com.esotericsoftware.kryo.KryoException;
import com.esotericsoftware.kryo.io.Input;
import com.esotericsoftware.kryo.io.Output;
import com.esotericsoftware.kryo.io.UnsafeInput;
import com.esotericsoftware.kryo.io.UnsafeMemoryInput;
import com.esotericsoftware.kryo.io.UnsafeMemoryOutput;
import com.esotericsoftware.kryo.io.UnsafeOutput;
import com.esotericsoftware.kryo.serializers.FieldSerializer.CachedField;
import com.esotericsoftware.reflectasm.FieldAccess;
/*** Implementations of sun.misc.Unsafe-based serializers for fields.
*
* @author Roman Levenstein */
class UnsafeCacheFields {
abstract static class UnsafeCachedField extends CachedField {
UnsafeCachedField (long offset) {
this.offset = offset;
}
}
final static class UnsafeIntField extends UnsafeCachedField {
public UnsafeIntField (Field f) {
super(unsafe().objectFieldOffset(f));
}
public void write (Output output, Object object) {
if (varIntsEnabled)
output.writeInt(unsafe().getInt(object, offset), false);
else
output.writeInt(unsafe().getInt(object, offset));
}
public void read (Input input, Object object) {
if (varIntsEnabled)
unsafe().putInt(object, offset, input.readInt(false));
else
unsafe().putInt(object, offset, input.readInt());
}
public void copy (Object original, Object copy) {
unsafe().putInt(copy, offset, unsafe().getInt(original, offset));
}
}
final static class UnsafeFloatField extends UnsafeCachedField {
public UnsafeFloatField (Field f) {
super(unsafe().objectFieldOffset(f));
}
public void write (Output output, Object object) {
output.writeFloat(unsafe().getFloat(object, offset));
}
public void read (Input input, Object object) {
unsafe().putFloat(object, offset, input.readFloat());
}
public void copy (Object original, Object copy) {
unsafe().putFloat(copy, offset, unsafe().getFloat(original, offset));
}
}
final static class UnsafeShortField extends UnsafeCachedField {
public UnsafeShortField (Field f) {
super(unsafe().objectFieldOffset(f));
}
public void write (Output output, Object object) {
output.writeShort(unsafe().getShort(object, offset));
}
public void read (Input input, Object object) {
unsafe().putShort(object, offset, input.readShort());
}
public void copy (Object original, Object copy) {
unsafe().putShort(copy, offset, unsafe().getShort(original, offset));
}
}
final static class UnsafeByteField extends UnsafeCachedField {
public UnsafeByteField (Field f) {
super(unsafe().objectFieldOffset(f));
}
public void write (Output output, Object object) {
output.writeByte(unsafe().getByte(object, offset));
}
public void read (Input input, Object object) {
unsafe().putByte(object, offset, input.readByte());
}
public void copy (Object original, Object copy) {
unsafe().putByte(copy, offset, unsafe().getByte(original, offset));
}
}
final static class UnsafeBooleanField extends UnsafeCachedField {
public UnsafeBooleanField (Field f) {
super(unsafe().objectFieldOffset(f));
}
public void write (Output output, Object object) {
output.writeBoolean(unsafe().getBoolean(object, offset));
}
public void read (Input input, Object object) {
unsafe().putBoolean(object, offset, input.readBoolean());
}
public void copy (Object original, Object copy) {
unsafe().putBoolean(copy, offset, unsafe().getBoolean(original, offset));
}
}
final static class UnsafeCharField extends UnsafeCachedField {
public UnsafeCharField (Field f) {
super(unsafe().objectFieldOffset(f));
}
public void write (Output output, Object object) {
output.writeChar(unsafe().getChar(object, offset));
}
public void read (Input input, Object object) {
unsafe().putChar(object, offset, input.readChar());
}
public void copy (Object original, Object copy) {
unsafe().putChar(copy, offset, unsafe().getChar(original, offset));
}
}
final static class UnsafeLongField extends UnsafeCachedField {
public UnsafeLongField (Field f) {
super(unsafe().objectFieldOffset(f));
}
public void write (Output output, Object object) {
if (varIntsEnabled)
output.writeLong(unsafe().getLong(object, offset), false);
else
output.writeLong(unsafe().getLong(object, offset));
}
public void read (Input input, Object object) {
if (varIntsEnabled)
unsafe().putLong(object, offset, input.readLong(false));
else
unsafe().putLong(object, offset, input.readLong());
}
public void copy (Object original, Object copy) {
unsafe().putLong(copy, offset, unsafe().getLong(original, offset));
}
}
final static class UnsafeDoubleField extends UnsafeCachedField {
public UnsafeDoubleField (Field f) {
super(unsafe().objectFieldOffset(f));
}
public void write (Output output, Object object) {
output.writeDouble(unsafe().getDouble(object, offset));
}
public void read (Input input, Object object) {
unsafe().putDouble(object, offset, input.readDouble());
}
public void copy (Object original, Object copy) {
unsafe().putDouble(copy, offset, unsafe().getDouble(original, offset));
}
}
final static class UnsafeStringField extends UnsafeCachedField {
public UnsafeStringField (Field f) {
super(unsafe().objectFieldOffset(f));
}
public void write (Output output, Object object) {
output.writeString((String)unsafe().getObject(object, offset));
}
public void read (Input input, Object object) {
unsafe().putObject(object, offset, input.readString());
}
public void copy (Object original, Object copy) {
unsafe().putObject(copy, offset, unsafe().getObject(original, offset));
}
}
/** Helper class for doing bulk copies of memory regions containing adjacent primitive fields. Should be normally used only with
* Unsafe streams to deliver best performance. */
final static class UnsafeRegionField extends UnsafeCachedField {
final long len;
static final boolean bulkReadsSupported = false;
public UnsafeRegionField (long offset, long len) {
super(offset);
this.len = len;
}
final public void write (Output output, Object object) {
if (output instanceof UnsafeOutput) {
UnsafeOutput unsafeOutput = (UnsafeOutput)output;
unsafeOutput.writeBytes(object, offset, len);
} else if (output instanceof UnsafeMemoryOutput) {
UnsafeMemoryOutput unsafeOutput = (UnsafeMemoryOutput)output;
unsafeOutput.writeBytes(object, offset, len);
} else {
long off;
Unsafe unsafe = unsafe();
for (off = offset; off < offset + len - 8; off += 8) {
output.writeLong(unsafe.getLong(object, off));
}
if (off < offset + len) {
for (; off < offset + len; ++off) {
output.write(unsafe.getByte(object, off));
}
}
}
}
final public void read (Input input, Object object) {
if (bulkReadsSupported && input instanceof UnsafeInput) {
UnsafeInput unsafeInput = (UnsafeInput)input;
unsafeInput.readBytes(object, offset, len);
} else if (bulkReadsSupported && input instanceof UnsafeMemoryInput) {
UnsafeMemoryInput unsafeInput = (UnsafeMemoryInput)input;
unsafeInput.readBytes(object, offset, len);
} else {
readSlow(input, object);
}
}
/*** This is a fall-back solution for the case that bulk reading of bytes into object memory is not supported. Unfortunately,
* current Oracle JDKs do not allow for bulk reading in this style due to problems with GC.
*
* @param input
* @param object */
private void readSlow (Input input, Object object) {
long off;
Unsafe unsafe = unsafe();
for (off = offset; off < offset + len - 8; off += 8) {
unsafe.putLong(object, off, input.readLong());
}
if (off < offset + len) {
for (; off < offset + len; ++off) {
unsafe.putByte(object, off, input.readByte());
}
}
}
public void copy (Object original, Object copy) {
unsafe().copyMemory(original, offset, copy, offset, len);
}
}
final static class UnsafeObjectField extends ObjectField {
public UnsafeObjectField (FieldSerializer fieldSerializer) {
super(fieldSerializer);
}
public Object getField (Object object) throws IllegalArgumentException, IllegalAccessException {
if (offset >= 0) {
return unsafe().getObject(object, offset);
} else
throw new KryoException("Unknown offset");
}
public void setField (Object object, Object value) throws IllegalArgumentException, IllegalAccessException {
if (offset != -1)
unsafe().putObject(object, offset, value);
else
throw new KryoException("Unknown offset");
}
public void copy (Object original, Object copy) {
try {
if (offset != -1) {
unsafe().putObject(copy, offset, kryo.copy(unsafe().getObject(original, offset)));
} else
throw new KryoException("Unknown offset");
} catch (KryoException ex) {
ex.addTrace(this + " (" + type.getName() + ")");
throw ex;
} catch (RuntimeException runtimeEx) {
KryoException ex = new KryoException(runtimeEx);
ex.addTrace(this + " (" + type.getName() + ")");
throw ex;
}
}
}
}