Java InputStream Deserialize to Object deserialize(InputStream inputStream)

Description

Deserializes an Object from the specified stream.

The stream will be closed once the object is written.

License

Apache License

Parameter

Parameter	Description
inputStream	the serialized object input stream, must not be null

Exception

Parameter	Description
IllegalArgumentException	if <code>inputStream</code> is <code>null</code>
SerializationException	(runtime) if the serialization fails

Return

the deserialized object

Declaration

public static Object deserialize(InputStream inputStream) 

Method Source Code

//package com.java2s;
/*/*w  w w.jav  a 2 s . c  o  m*/
 * 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.
 */

import java.io.*;

public class Main {
    /**
     * <p>Deserializes an <code>Object</code> from the specified stream.</p>
     *
     * <p>The stream will be closed once the object is written. This
     * avoids the need for a finally clause, and maybe also exception
     * handling, in the application code.</p>
     * 
     * <p>The stream passed in is not buffered internally within this method.
     * This is the responsibility of your application if desired.</p>
     *
     * @param inputStream  the serialized object input stream, must not be null
     * @return the deserialized object
     * @throws IllegalArgumentException if <code>inputStream</code> is <code>null</code>
     * @throws SerializationException (runtime) if the serialization fails
     */
    public static Object deserialize(InputStream inputStream) {
        if (inputStream == null) {
            throw new IllegalArgumentException("The InputStream must not be null");
        }
        ObjectInputStream in = null;
        try {
            // stream closed in the finally
            in = new ObjectInputStream(inputStream);
            return in.readObject();

        } catch (ClassNotFoundException ex) {
            ex.printStackTrace();
        } catch (IOException ex) {
            ex.printStackTrace();
        } finally {
            try {
                if (in != null) {
                    in.close();
                }
            } catch (IOException ex) {
                // ignore close exception
            }
        }
        return null;
    }

    /**
     * <p>Deserializes a single <code>Object</code> from an array of bytes.</p>
     *
     * @param objectData  the serialized object, must not be null
     * @return the deserialized object
     * @throws IllegalArgumentException if <code>objectData</code> is <code>null</code>
     * @throws SerializationException (runtime) if the serialization fails
     */
    public static Object deserialize(byte[] objectData) {
        if (objectData == null) {
            throw new IllegalArgumentException("The byte[] must not be null");
        }
        ByteArrayInputStream bais = new ByteArrayInputStream(objectData);
        return deserialize(bais);
    }
}

Related

1. deserialize(InputStream in)
2. deserialize(InputStream in)
3. deserialize(InputStream in, Class cls)
4. deserialize(InputStream inputStream)
5. deserialize(InputStream inputStream)
6. deserialize(InputStream is)
7. deserialize(InputStream is)