| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.apache.uima.internal.util; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.ByteArrayOutputStream; |
| import java.io.IOException; |
| import java.io.ObjectInputStream; |
| import java.io.ObjectOutputStream; |
| import java.io.Serializable; |
| |
| /** |
| * Utilities for serializing and deserializing objects. |
| * |
| * |
| */ |
| public abstract class SerializationUtils { |
| |
| /** |
| * Serializes an object to a byte array. |
| * |
| * @param aObject |
| * object to serialize |
| * |
| * @return <code>aObject</code> encoded as a byte array. If <code>aObject</code> is |
| * <code>null</code>, <code>null</code> is returned. |
| * |
| * @throws IOException |
| * if an I/O error occurs |
| */ |
| public static byte[] serialize(Serializable aObject) throws IOException { |
| if (aObject == null) { |
| return null; |
| } |
| |
| ByteArrayOutputStream byteStream = new ByteArrayOutputStream(); |
| ObjectOutputStream objStream = null; |
| try { |
| objStream = new ObjectOutputStream(byteStream); |
| objStream.writeObject(aObject); |
| objStream.flush(); |
| return byteStream.toByteArray(); |
| } finally { |
| if (objStream != null) |
| objStream.close(); |
| } |
| } |
| |
| /** |
| * Deserializes an object from a byte array. |
| * |
| * @param aBytes |
| * byte array to read from |
| * |
| * @return The <code>Object</code> deserialized from <code>aBytes</code>. If |
| * <code>aBytes</code> is <code>null</code>, <code>null</code> is returned. |
| * |
| * @throws IOException |
| * if an I/O error occurs |
| * @throws ClassNotFoundException |
| * if a required class could not be found |
| */ |
| public static Object deserialize(byte[] aBytes) throws IOException, ClassNotFoundException { |
| if (aBytes == null) { |
| return null; |
| } |
| |
| ByteArrayInputStream byteStream = new ByteArrayInputStream(aBytes); |
| ObjectInputStream objStream = null; |
| try { |
| objStream = new ObjectInputStream(byteStream); |
| return objStream.readObject(); |
| } finally { |
| if (objStream != null) |
| objStream.close(); |
| } |
| } |
| } |