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| <pre><span class="sourceLineNo">001</span><a id="line.1">/*</a> |
| <span class="sourceLineNo">002</span><a id="line.2"> * Licensed to the Apache Software Foundation (ASF) under one</a> |
| <span class="sourceLineNo">003</span><a id="line.3"> * or more contributor license agreements. See the NOTICE file</a> |
| <span class="sourceLineNo">004</span><a id="line.4"> * distributed with this work for additional information</a> |
| <span class="sourceLineNo">005</span><a id="line.5"> * regarding copyright ownership. The ASF licenses this file</a> |
| <span class="sourceLineNo">006</span><a id="line.6"> * to you under the Apache License, Version 2.0 (the</a> |
| <span class="sourceLineNo">007</span><a id="line.7"> * "License"); you may not use this file except in compliance</a> |
| <span class="sourceLineNo">008</span><a id="line.8"> * with the License. You may obtain a copy of the License at</a> |
| <span class="sourceLineNo">009</span><a id="line.9"> *</a> |
| <span class="sourceLineNo">010</span><a id="line.10"> * http://www.apache.org/licenses/LICENSE-2.0</a> |
| <span class="sourceLineNo">011</span><a id="line.11"> *</a> |
| <span class="sourceLineNo">012</span><a id="line.12"> * Unless required by applicable law or agreed to in writing,</a> |
| <span class="sourceLineNo">013</span><a id="line.13"> * software distributed under the License is distributed on an</a> |
| <span class="sourceLineNo">014</span><a id="line.14"> * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY</a> |
| <span class="sourceLineNo">015</span><a id="line.15"> * KIND, either express or implied. See the License for the</a> |
| <span class="sourceLineNo">016</span><a id="line.16"> * specific language governing permissions and limitations</a> |
| <span class="sourceLineNo">017</span><a id="line.17"> * under the License.</a> |
| <span class="sourceLineNo">018</span><a id="line.18"> */</a> |
| <span class="sourceLineNo">019</span><a id="line.19">package org.apache.shiro.io;</a> |
| <span class="sourceLineNo">020</span><a id="line.20"></a> |
| <span class="sourceLineNo">021</span><a id="line.21">import java.io.*;</a> |
| <span class="sourceLineNo">022</span><a id="line.22"></a> |
| <span class="sourceLineNo">023</span><a id="line.23">/**</a> |
| <span class="sourceLineNo">024</span><a id="line.24"> * Serializer implementation that uses the default JVM serialization mechanism (Object Input/Output Streams).</a> |
| <span class="sourceLineNo">025</span><a id="line.25"> *</a> |
| <span class="sourceLineNo">026</span><a id="line.26"> * @since 0.9</a> |
| <span class="sourceLineNo">027</span><a id="line.27"> */</a> |
| <span class="sourceLineNo">028</span><a id="line.28">public class DefaultSerializer<T> implements Serializer<T> {</a> |
| <span class="sourceLineNo">029</span><a id="line.29"></a> |
| <span class="sourceLineNo">030</span><a id="line.30"> /**</a> |
| <span class="sourceLineNo">031</span><a id="line.31"> * This implementation serializes the Object by using an {@link ObjectOutputStream} backed by a</a> |
| <span class="sourceLineNo">032</span><a id="line.32"> * {@link ByteArrayOutputStream}. The {@code ByteArrayOutputStream}'s backing byte array is returned.</a> |
| <span class="sourceLineNo">033</span><a id="line.33"> *</a> |
| <span class="sourceLineNo">034</span><a id="line.34"> * @param o the Object to convert into a byte[] array.</a> |
| <span class="sourceLineNo">035</span><a id="line.35"> * @return the bytes representing the serialized object using standard JVM serialization.</a> |
| <span class="sourceLineNo">036</span><a id="line.36"> * @throws SerializationException wrapping a {@link IOException} if something goes wrong with the streams.</a> |
| <span class="sourceLineNo">037</span><a id="line.37"> */</a> |
| <span class="sourceLineNo">038</span><a id="line.38"> public byte[] serialize(T o) throws SerializationException {</a> |
| <span class="sourceLineNo">039</span><a id="line.39"> if (o == null) {</a> |
| <span class="sourceLineNo">040</span><a id="line.40"> String msg = "argument cannot be null.";</a> |
| <span class="sourceLineNo">041</span><a id="line.41"> throw new IllegalArgumentException(msg);</a> |
| <span class="sourceLineNo">042</span><a id="line.42"> }</a> |
| <span class="sourceLineNo">043</span><a id="line.43"> ByteArrayOutputStream baos = new ByteArrayOutputStream();</a> |
| <span class="sourceLineNo">044</span><a id="line.44"> BufferedOutputStream bos = new BufferedOutputStream(baos);</a> |
| <span class="sourceLineNo">045</span><a id="line.45"></a> |
| <span class="sourceLineNo">046</span><a id="line.46"> try {</a> |
| <span class="sourceLineNo">047</span><a id="line.47"> ObjectOutputStream oos = new ObjectOutputStream(bos);</a> |
| <span class="sourceLineNo">048</span><a id="line.48"> oos.writeObject(o);</a> |
| <span class="sourceLineNo">049</span><a id="line.49"> oos.close();</a> |
| <span class="sourceLineNo">050</span><a id="line.50"> return baos.toByteArray();</a> |
| <span class="sourceLineNo">051</span><a id="line.51"> } catch (IOException e) {</a> |
| <span class="sourceLineNo">052</span><a id="line.52"> String msg = "Unable to serialize object [" + o + "]. " +</a> |
| <span class="sourceLineNo">053</span><a id="line.53"> "In order for the DefaultSerializer to serialize this object, the [" + o.getClass().getName() + "] " +</a> |
| <span class="sourceLineNo">054</span><a id="line.54"> "class must implement java.io.Serializable.";</a> |
| <span class="sourceLineNo">055</span><a id="line.55"> throw new SerializationException(msg, e);</a> |
| <span class="sourceLineNo">056</span><a id="line.56"> }</a> |
| <span class="sourceLineNo">057</span><a id="line.57"> }</a> |
| <span class="sourceLineNo">058</span><a id="line.58"></a> |
| <span class="sourceLineNo">059</span><a id="line.59"> /**</a> |
| <span class="sourceLineNo">060</span><a id="line.60"> * This implementation deserializes the byte array using a {@link ObjectInputStream} using a source</a> |
| <span class="sourceLineNo">061</span><a id="line.61"> * {@link ByteArrayInputStream} constructed with the argument byte array.</a> |
| <span class="sourceLineNo">062</span><a id="line.62"> *</a> |
| <span class="sourceLineNo">063</span><a id="line.63"> * @param serialized the raw data resulting from a previous {@link #serialize(Object) serialize} call.</a> |
| <span class="sourceLineNo">064</span><a id="line.64"> * @return the deserialized/reconstituted object based on the given byte array</a> |
| <span class="sourceLineNo">065</span><a id="line.65"> * @throws SerializationException if anything goes wrong using the streams.</a> |
| <span class="sourceLineNo">066</span><a id="line.66"> */</a> |
| <span class="sourceLineNo">067</span><a id="line.67"> public T deserialize(byte[] serialized) throws SerializationException {</a> |
| <span class="sourceLineNo">068</span><a id="line.68"> if (serialized == null) {</a> |
| <span class="sourceLineNo">069</span><a id="line.69"> String msg = "argument cannot be null.";</a> |
| <span class="sourceLineNo">070</span><a id="line.70"> throw new IllegalArgumentException(msg);</a> |
| <span class="sourceLineNo">071</span><a id="line.71"> }</a> |
| <span class="sourceLineNo">072</span><a id="line.72"> ByteArrayInputStream bais = new ByteArrayInputStream(serialized);</a> |
| <span class="sourceLineNo">073</span><a id="line.73"> BufferedInputStream bis = new BufferedInputStream(bais);</a> |
| <span class="sourceLineNo">074</span><a id="line.74"> try {</a> |
| <span class="sourceLineNo">075</span><a id="line.75"> ObjectInputStream ois = new ClassResolvingObjectInputStream(bis);</a> |
| <span class="sourceLineNo">076</span><a id="line.76"> @SuppressWarnings({"unchecked"})</a> |
| <span class="sourceLineNo">077</span><a id="line.77"> T deserialized = (T) ois.readObject();</a> |
| <span class="sourceLineNo">078</span><a id="line.78"> ois.close();</a> |
| <span class="sourceLineNo">079</span><a id="line.79"> return deserialized;</a> |
| <span class="sourceLineNo">080</span><a id="line.80"> } catch (Exception e) {</a> |
| <span class="sourceLineNo">081</span><a id="line.81"> String msg = "Unable to deserialize argument byte array.";</a> |
| <span class="sourceLineNo">082</span><a id="line.82"> throw new SerializationException(msg, e);</a> |
| <span class="sourceLineNo">083</span><a id="line.83"> }</a> |
| <span class="sourceLineNo">084</span><a id="line.84"> }</a> |
| <span class="sourceLineNo">085</span><a id="line.85">}</a> |
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