ru.zinin.redis.util.RedisSerializationUtil Maven / Gradle / Ivy
/*
* Copyright 2011 Alexander V. Zinin
*
* 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 ru.zinin.redis.util;
import java.io.*;
/**
* Date: 29.10.11 16:50
*
* @author Alexander V. Zinin ([email protected])
*/
public class RedisSerializationUtil {
public static byte[] encode(T obj) {
try {
ByteArrayOutputStream bout = new ByteArrayOutputStream();
ObjectOutputStream out = new ObjectOutputStream(bout);
out.writeObject(obj);
return bout.toByteArray();
} catch (IOException e) {
throw new RuntimeException("Error serializing object" + obj + " => " + e);
}
}
@SuppressWarnings({"unchecked", "ThrowFromFinallyBlock"})
public static T decode(byte[] bytes) {
T t = null;
Exception thrown = null;
try {
CustomObjectInputStream oin = new CustomObjectInputStream(new ByteArrayInputStream(bytes), Thread.currentThread().getContextClassLoader());
t = (T) oin.readObject();
} catch (IOException e) {
e.printStackTrace();
thrown = e;
} catch (ClassNotFoundException e) {
e.printStackTrace();
thrown = e;
} catch (ClassCastException e) {
e.printStackTrace();
thrown = e;
} finally {
if (null != thrown) {
throw new RuntimeException(
"Error decoding byte[] data to instantiate java object - " +
"data at key may not have been of this type or even an object", thrown
);
}
}
return t;
}
}