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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.beans.XMLDecoder;</a> |
| <span class="sourceLineNo">022</span><a id="line.22">import java.beans.XMLEncoder;</a> |
| <span class="sourceLineNo">023</span><a id="line.23">import java.io.BufferedInputStream;</a> |
| <span class="sourceLineNo">024</span><a id="line.24">import java.io.BufferedOutputStream;</a> |
| <span class="sourceLineNo">025</span><a id="line.25">import java.io.ByteArrayInputStream;</a> |
| <span class="sourceLineNo">026</span><a id="line.26">import java.io.ByteArrayOutputStream;</a> |
| <span class="sourceLineNo">027</span><a id="line.27"></a> |
| <span class="sourceLineNo">028</span><a id="line.28">/**</a> |
| <span class="sourceLineNo">029</span><a id="line.29"> * Serializer implementation that uses the JavaBeans</a> |
| <span class="sourceLineNo">030</span><a id="line.30"> * {@link java.beans.XMLEncoder XMLEncoder} and {@link java.beans.XMLDecoder XMLDecoder} to serialize</a> |
| <span class="sourceLineNo">031</span><a id="line.31"> * and deserialize, respectively.</a> |
| <span class="sourceLineNo">032</span><a id="line.32"> * <p/></a> |
| <span class="sourceLineNo">033</span><a id="line.33"> * <b>NOTE:</b> The JavaBeans XMLEncoder/XMLDecoder only successfully encode/decode objects when they are</a> |
| <span class="sourceLineNo">034</span><a id="line.34"> * JavaBeans compatible!</a> |
| <span class="sourceLineNo">035</span><a id="line.35"> * </a> |
| <span class="sourceLineNo">036</span><a id="line.36"> * @since 0.9</a> |
| <span class="sourceLineNo">037</span><a id="line.37"> */</a> |
| <span class="sourceLineNo">038</span><a id="line.38">public class XmlSerializer implements Serializer {</a> |
| <span class="sourceLineNo">039</span><a id="line.39"></a> |
| <span class="sourceLineNo">040</span><a id="line.40"> /**</a> |
| <span class="sourceLineNo">041</span><a id="line.41"> * Serializes the specified <code>source</code> into a byte[] array by using the</a> |
| <span class="sourceLineNo">042</span><a id="line.42"> * {@link java.beans.XMLEncoder XMLEncoder} to encode the object out to a</a> |
| <span class="sourceLineNo">043</span><a id="line.43"> * {@link java.io.ByteArrayOutputStream ByteArrayOutputStream}, where the resulting byte[] array is returned.</a> |
| <span class="sourceLineNo">044</span><a id="line.44"> * @param source the Object to convert into a byte[] array.</a> |
| <span class="sourceLineNo">045</span><a id="line.45"> * @return the byte[] array representation of the XML encoded output.</a> |
| <span class="sourceLineNo">046</span><a id="line.46"> */</a> |
| <span class="sourceLineNo">047</span><a id="line.47"> public byte[] serialize(Object source) {</a> |
| <span class="sourceLineNo">048</span><a id="line.48"> if (source == null) {</a> |
| <span class="sourceLineNo">049</span><a id="line.49"> String msg = "argument cannot be null.";</a> |
| <span class="sourceLineNo">050</span><a id="line.50"> throw new IllegalArgumentException(msg);</a> |
| <span class="sourceLineNo">051</span><a id="line.51"> }</a> |
| <span class="sourceLineNo">052</span><a id="line.52"></a> |
| <span class="sourceLineNo">053</span><a id="line.53"> ByteArrayOutputStream bos = new ByteArrayOutputStream();</a> |
| <span class="sourceLineNo">054</span><a id="line.54"> XMLEncoder encoder = new XMLEncoder(new BufferedOutputStream(bos));</a> |
| <span class="sourceLineNo">055</span><a id="line.55"> encoder.writeObject(source);</a> |
| <span class="sourceLineNo">056</span><a id="line.56"> encoder.close();</a> |
| <span class="sourceLineNo">057</span><a id="line.57"></a> |
| <span class="sourceLineNo">058</span><a id="line.58"> return bos.toByteArray();</a> |
| <span class="sourceLineNo">059</span><a id="line.59"> }</a> |
| <span class="sourceLineNo">060</span><a id="line.60"></a> |
| <span class="sourceLineNo">061</span><a id="line.61"> /**</a> |
| <span class="sourceLineNo">062</span><a id="line.62"> * Deserializes the specified <code>serialized</code> source back into an Object by using a</a> |
| <span class="sourceLineNo">063</span><a id="line.63"> * {@link java.io.ByteArrayInputStream ByteArrayInputStream} to wrap the argument and then decode this</a> |
| <span class="sourceLineNo">064</span><a id="line.64"> * stream via an {@link java.beans.XMLDecoder XMLDecoder}, where the</a> |
| <span class="sourceLineNo">065</span><a id="line.65"> * {@link java.beans.XMLDecoder#readObject() readObject} call results in the original Object to return.</a> |
| <span class="sourceLineNo">066</span><a id="line.66"> * @param serialized the byte[] array representation of the XML encoded output.</a> |
| <span class="sourceLineNo">067</span><a id="line.67"> * @return the original source Object in reconstituted form.</a> |
| <span class="sourceLineNo">068</span><a id="line.68"> */</a> |
| <span class="sourceLineNo">069</span><a id="line.69"> public Object deserialize(byte[] serialized) {</a> |
| <span class="sourceLineNo">070</span><a id="line.70"> if (serialized == null) {</a> |
| <span class="sourceLineNo">071</span><a id="line.71"> throw new IllegalArgumentException("Argument cannot be null.");</a> |
| <span class="sourceLineNo">072</span><a id="line.72"> }</a> |
| <span class="sourceLineNo">073</span><a id="line.73"> ByteArrayInputStream bis = new ByteArrayInputStream(serialized);</a> |
| <span class="sourceLineNo">074</span><a id="line.74"> XMLDecoder decoder = new XMLDecoder(new BufferedInputStream(bis));</a> |
| <span class="sourceLineNo">075</span><a id="line.75"> Object o = decoder.readObject();</a> |
| <span class="sourceLineNo">076</span><a id="line.76"> decoder.close();</a> |
| <span class="sourceLineNo">077</span><a id="line.77"> return o;</a> |
| <span class="sourceLineNo">078</span><a id="line.78"> }</a> |
| <span class="sourceLineNo">079</span><a id="line.79">}</a> |
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