/*
* Copyright 2004-2015 the Seasar Foundation and the Others.
*
* 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 org.seasar.framework.util;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import org.seasar.framework.exception.ClassNotFoundRuntimeException;
import org.seasar.framework.exception.IORuntimeException;
/**
* オブジェクトをシリアライズするためのユーティリティです。
*
* @author higa
*
*/
public class SerializeUtil {
private static final int BYTE_ARRAY_SIZE = 8 * 1024;
/**
* インスタンスを構築します。
*/
protected SerializeUtil() {
}
/**
* オブジェクトをシリアライズできるかテストします。
*
* @param o
* @return
* @throws IORuntimeException
* @throws ClassNotFoundRuntimeException
*/
public static Object serialize(final Object o) throws IORuntimeException,
ClassNotFoundRuntimeException {
byte[] binary = fromObjectToBinary(o);
return fromBinaryToObject(binary);
}
/**
* オブジェクトをbyteの配列に変換します。
*
* @param o
* @return
*/
public static byte[] fromObjectToBinary(Object o) {
try {
ByteArrayOutputStream baos = new ByteArrayOutputStream(
BYTE_ARRAY_SIZE);
ObjectOutputStream oos = new ObjectOutputStream(baos);
try {
oos.writeObject(o);
} finally {
oos.close();
}
return baos.toByteArray();
} catch (IOException ex) {
throw new IORuntimeException(ex);
}
}
/**
* byteの配列をオブジェクトに変換します。
*
* @param binary
* @return
*/
public static Object fromBinaryToObject(byte[] binary) {
try {
ByteArrayInputStream bais = new ByteArrayInputStream(binary);
ObjectInputStream ois = new ObjectInputStream(bais);
try {
return ois.readObject();
} finally {
ois.close();
}
} catch (IOException ex) {
throw new IORuntimeException(ex);
} catch (ClassNotFoundException ex) {
throw new ClassNotFoundRuntimeException(ex);
}
}
}