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| <pre><span class="sourceLineNo">001</span><a id="line.1">package org.apache.archiva.redback.policy;</a> |
| <span class="sourceLineNo">002</span><a id="line.2"></a> |
| <span class="sourceLineNo">003</span><a id="line.3">/*</a> |
| <span class="sourceLineNo">004</span><a id="line.4"> * Copyright 2001-2006 The Apache Software Foundation.</a> |
| <span class="sourceLineNo">005</span><a id="line.5"> *</a> |
| <span class="sourceLineNo">006</span><a id="line.6"> * Licensed under the Apache License, Version 2.0 (the "License");</a> |
| <span class="sourceLineNo">007</span><a id="line.7"> * you may not use this file except in compliance with the License.</a> |
| <span class="sourceLineNo">008</span><a id="line.8"> * 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, software</a> |
| <span class="sourceLineNo">013</span><a id="line.13"> * distributed under the License is distributed on an "AS IS" BASIS,</a> |
| <span class="sourceLineNo">014</span><a id="line.14"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</a> |
| <span class="sourceLineNo">015</span><a id="line.15"> * See the License for the specific language governing permissions and</a> |
| <span class="sourceLineNo">016</span><a id="line.16"> * limitations under the License.</a> |
| <span class="sourceLineNo">017</span><a id="line.17"> */</a> |
| <span class="sourceLineNo">018</span><a id="line.18"></a> |
| <span class="sourceLineNo">019</span><a id="line.19">import java.util.HashMap;</a> |
| <span class="sourceLineNo">020</span><a id="line.20">import java.util.Map;</a> |
| <span class="sourceLineNo">021</span><a id="line.21"></a> |
| <span class="sourceLineNo">022</span><a id="line.22">/**</a> |
| <span class="sourceLineNo">023</span><a id="line.23"> * PolicyContext - A Thread Local Context.</a> |
| <span class="sourceLineNo">024</span><a id="line.24"> * Useful for managing policy operations on a thread local point of view. </a> |
| <span class="sourceLineNo">025</span><a id="line.25"> *</a> |
| <span class="sourceLineNo">026</span><a id="line.26"> * @author <a href="mailto:joakim@erdfelt.com">Joakim Erdfelt</a></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">public class PolicyContext</a> |
| <span class="sourceLineNo">030</span><a id="line.30">{</a> |
| <span class="sourceLineNo">031</span><a id="line.31"> static ThreadLocal<PolicyContext> policyContext = new PolicyContextThreadLocal();</a> |
| <span class="sourceLineNo">032</span><a id="line.32"></a> |
| <span class="sourceLineNo">033</span><a id="line.33"> Map<Object, Object> context;</a> |
| <span class="sourceLineNo">034</span><a id="line.34"></a> |
| <span class="sourceLineNo">035</span><a id="line.35"> public PolicyContext( Map<Object, Object> map )</a> |
| <span class="sourceLineNo">036</span><a id="line.36"> {</a> |
| <span class="sourceLineNo">037</span><a id="line.37"> context = map;</a> |
| <span class="sourceLineNo">038</span><a id="line.38"> }</a> |
| <span class="sourceLineNo">039</span><a id="line.39"></a> |
| <span class="sourceLineNo">040</span><a id="line.40"> public static void setContext( PolicyContext context )</a> |
| <span class="sourceLineNo">041</span><a id="line.41"> {</a> |
| <span class="sourceLineNo">042</span><a id="line.42"> policyContext.set( context );</a> |
| <span class="sourceLineNo">043</span><a id="line.43"> }</a> |
| <span class="sourceLineNo">044</span><a id="line.44"></a> |
| <span class="sourceLineNo">045</span><a id="line.45"> public static PolicyContext getContext()</a> |
| <span class="sourceLineNo">046</span><a id="line.46"> {</a> |
| <span class="sourceLineNo">047</span><a id="line.47"> PolicyContext ctx = (PolicyContext) policyContext.get();</a> |
| <span class="sourceLineNo">048</span><a id="line.48"> if ( ctx == null )</a> |
| <span class="sourceLineNo">049</span><a id="line.49"> {</a> |
| <span class="sourceLineNo">050</span><a id="line.50"> ctx = new PolicyContext( new HashMap<Object, Object>() );</a> |
| <span class="sourceLineNo">051</span><a id="line.51"> setContext( ctx );</a> |
| <span class="sourceLineNo">052</span><a id="line.52"> }</a> |
| <span class="sourceLineNo">053</span><a id="line.53"></a> |
| <span class="sourceLineNo">054</span><a id="line.54"> return ctx;</a> |
| <span class="sourceLineNo">055</span><a id="line.55"> }</a> |
| <span class="sourceLineNo">056</span><a id="line.56"></a> |
| <span class="sourceLineNo">057</span><a id="line.57"> public Object get( Object key )</a> |
| <span class="sourceLineNo">058</span><a id="line.58"> {</a> |
| <span class="sourceLineNo">059</span><a id="line.59"> return context.get( key );</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"> public void put( Object key, Object value )</a> |
| <span class="sourceLineNo">063</span><a id="line.63"> {</a> |
| <span class="sourceLineNo">064</span><a id="line.64"> context.put( key, value );</a> |
| <span class="sourceLineNo">065</span><a id="line.65"> }</a> |
| <span class="sourceLineNo">066</span><a id="line.66"></a> |
| <span class="sourceLineNo">067</span><a id="line.67"> private static class PolicyContextThreadLocal</a> |
| <span class="sourceLineNo">068</span><a id="line.68"> extends ThreadLocal<PolicyContext></a> |
| <span class="sourceLineNo">069</span><a id="line.69"> {</a> |
| <span class="sourceLineNo">070</span><a id="line.70"> protected PolicyContext initialValue()</a> |
| <span class="sourceLineNo">071</span><a id="line.71"> {</a> |
| <span class="sourceLineNo">072</span><a id="line.72"> return new PolicyContext( new HashMap<Object, Object>() );</a> |
| <span class="sourceLineNo">073</span><a id="line.73"> }</a> |
| <span class="sourceLineNo">074</span><a id="line.74"> }</a> |
| <span class="sourceLineNo">075</span><a id="line.75">}</a> |
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| </pre> |
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