/*
* Copyright (c) 2008-2013, Hazelcast, Inc. All Rights Reserved.
*
* 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 com.hazelcast.nio.serialization;
import com.hazelcast.nio.ClassLoaderUtil;
import com.hazelcast.nio.ObjectDataInput;
import com.hazelcast.nio.ObjectDataOutput;
import java.io.IOException;
import java.io.Externalizable;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.util.Date;
import java.util.zip.GZIPInputStream;
import java.util.zip.GZIPOutputStream;
import static com.hazelcast.nio.IOUtil.newObjectInputStream;
import static com.hazelcast.nio.serialization.SerializationConstants.DEFAULT_TYPE_BIG_INTEGER;
import static com.hazelcast.nio.serialization.SerializationConstants.DEFAULT_TYPE_BIG_DECIMAL;
import static com.hazelcast.nio.serialization.SerializationConstants.DEFAULT_TYPE_DATE;
import static com.hazelcast.nio.serialization.SerializationConstants.DEFAULT_TYPE_CLASS;
import static com.hazelcast.nio.serialization.SerializationConstants.DEFAULT_TYPE_EXTERNALIZABLE;
import static com.hazelcast.nio.serialization.SerializationConstants.DEFAULT_TYPE_OBJECT;
import static com.hazelcast.nio.serialization.SerializationConstants.DEFAULT_TYPE_ENUM;
public final class DefaultSerializers {
public static final class BigIntegerSerializer extends SingletonSerializer<BigInteger> {
public int getTypeId() {
return DEFAULT_TYPE_BIG_INTEGER;
}
public BigInteger read(final ObjectDataInput in) throws IOException {
final byte[] bytes = new byte[in.readInt()];
in.readFully(bytes);
return new BigInteger(bytes);
}
public void write(final ObjectDataOutput out, final BigInteger obj) throws IOException {
final byte[] bytes = obj.toByteArray();
out.writeInt(bytes.length);
out.write(bytes);
}
}
public static final class BigDecimalSerializer extends SingletonSerializer<BigDecimal> {
final BigIntegerSerializer bigIntegerSerializer = new BigIntegerSerializer();
public int getTypeId() {
return DEFAULT_TYPE_BIG_DECIMAL;
}
public BigDecimal read(final ObjectDataInput in) throws IOException {
BigInteger bigInt = bigIntegerSerializer.read(in);
int scale = in.readInt();
return new BigDecimal(bigInt, scale);
}
public void write(final ObjectDataOutput out, final BigDecimal obj) throws IOException {
BigInteger bigInt = obj.unscaledValue();
int scale = obj.scale();
bigIntegerSerializer.write(out, bigInt);
out.writeInt(scale);
}
}
public static final class DateSerializer extends SingletonSerializer<Date> {
public int getTypeId() {
return DEFAULT_TYPE_DATE;
}
public Date read(final ObjectDataInput in) throws IOException {
return new Date(in.readLong());
}
public void write(final ObjectDataOutput out, final Date obj) throws IOException {
out.writeLong(obj.getTime());
}
}
public static final class ClassSerializer extends SingletonSerializer<Class> {
public int getTypeId() {
return DEFAULT_TYPE_CLASS;
}
public Class read(final ObjectDataInput in) throws IOException {
try {
return ClassLoaderUtil.loadClass(in.getClassLoader(), in.readUTF());
} catch (ClassNotFoundException e) {
throw new HazelcastSerializationException(e);
}
}
public void write(final ObjectDataOutput out, final Class obj) throws IOException {
out.writeUTF(obj.getName());
}
}
public static final class Externalizer extends SingletonSerializer<Externalizable> {
private final boolean gzipEnabled;
public Externalizer(boolean gzipEnabled) {
this.gzipEnabled = gzipEnabled;
}
public int getTypeId() {
return DEFAULT_TYPE_EXTERNALIZABLE;
}
public Externalizable read(final ObjectDataInput in) throws IOException {
final String className = in.readUTF();
try {
final Externalizable ds = ClassLoaderUtil.newInstance(in.getClassLoader(), className);
final ObjectInputStream objectInputStream;
final InputStream inputStream = (InputStream) in;
if (gzipEnabled) {
objectInputStream = newObjectInputStream(in.getClassLoader(), new GZIPInputStream(inputStream));
} else {
objectInputStream = newObjectInputStream(in.getClassLoader(), inputStream);
}
ds.readExternal(objectInputStream);
return ds;
} catch (final Exception e) {
throw new HazelcastSerializationException("Problem while reading Externalizable class : "
+ className + ", exception: " + e);
}
}
public void write(final ObjectDataOutput out, final Externalizable obj) throws IOException {
out.writeUTF(obj.getClass().getName());
final ObjectOutputStream objectOutputStream;
final OutputStream outputStream = (OutputStream) out;
if (gzipEnabled) {
objectOutputStream = new ObjectOutputStream(new GZIPOutputStream(outputStream));
} else {
objectOutputStream = new ObjectOutputStream(outputStream);
}
obj.writeExternal(objectOutputStream);
// Force flush if not yet written due to internal behavior if pos < 1024
objectOutputStream.flush();
}
}
public static final class ObjectSerializer extends SingletonSerializer<Object> {
private final boolean shared;
private final boolean gzipEnabled;
public ObjectSerializer(boolean shared, boolean gzipEnabled) {
this.shared = shared;
this.gzipEnabled = gzipEnabled;
}
public int getTypeId() {
return DEFAULT_TYPE_OBJECT;
}
public Object read(final ObjectDataInput in) throws IOException {
final ObjectInputStream objectInputStream;
final InputStream inputStream = (InputStream) in;
if (gzipEnabled) {
objectInputStream = newObjectInputStream(in.getClassLoader(), new GZIPInputStream(inputStream));
} else {
objectInputStream = newObjectInputStream(in.getClassLoader(), inputStream);
}
final Object result;
try {
if (shared) {
result = objectInputStream.readObject();
} else {
result = objectInputStream.readUnshared();
}
} catch (ClassNotFoundException e) {
throw new HazelcastSerializationException(e);
}
return result;
}
@edu.umd.cs.findbugs.annotations.SuppressWarnings({ "OS_OPEN_STREAM" })
public void write(final ObjectDataOutput out, final Object obj) throws IOException {
final ObjectOutputStream objectOutputStream;
final OutputStream outputStream = (OutputStream) out;
if (gzipEnabled) {
objectOutputStream = new ObjectOutputStream(new GZIPOutputStream(outputStream));
} else {
objectOutputStream = new ObjectOutputStream(outputStream);
}
if (shared) {
objectOutputStream.writeObject(obj);
} else {
objectOutputStream.writeUnshared(obj);
}
// Force flush if not yet written due to internal behavior if pos < 1024
objectOutputStream.flush();
}
}
public static final class EnumSerializer extends SingletonSerializer<Enum> {
public int getTypeId() {
return DEFAULT_TYPE_ENUM;
}
public void write(ObjectDataOutput out, Enum obj) throws IOException {
String name = obj.getDeclaringClass().getName();
out.writeUTF(name);
out.writeUTF(obj.name());
}
public Enum read(ObjectDataInput in) throws IOException {
String clazzName = in.readUTF();
Class clazz;
try {
clazz = ClassLoaderUtil.loadClass(in.getClassLoader(), clazzName);
} catch (ClassNotFoundException e) {
throw new HazelcastSerializationException("Failed to deserialize enum: " + clazzName, e);
}
String name = in.readUTF();
return Enum.valueOf(clazz, name);
}
}
private abstract static class SingletonSerializer<T> implements StreamSerializer<T> {
public void destroy() {
}
}
private DefaultSerializers() {
}
}