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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * The ASF licenses this file to You under the Apache License, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License.  You may obtain a copy of the License at
8    *
9    *      http://www.apache.org/licenses/LICENSE-2.0
10   *
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the License for the specific language governing permissions and
15   * limitations under the License.
16   */
17  
18  package org.apache.commons.jci.stores;
19  
20  import java.util.ArrayList;
21  import java.util.HashMap;
22  import java.util.Iterator;
23  import java.util.List;
24  import java.util.Map;
25  import org.apache.commons.logging.Log;
26  import org.apache.commons.logging.LogFactory;
27  
28  
29  /**
30   * Store just in memory
31   * 
32   * @author tcurdt
33   */
34  public final class MemoryResourceStore implements ResourceStore {
35  
36      private final Log log = LogFactory.getLog(MemoryResourceStore.class);
37  
38      private final Map store = new HashMap();
39  
40      public byte[] read( final String pResourceName ) {
41          log.debug("reading resource " + pResourceName);
42          return (byte[]) store.get(pResourceName);
43      }
44  
45      public void write( final String pResourceName, final byte[] pData ) {
46          log.debug("writing resource " + pResourceName + "(" + pData.length + ")");
47          store.put(pResourceName, pData);
48      }
49  
50      public void remove( final String pResourceName ) {
51          log.debug("removing resource " + pResourceName);
52          store.remove(pResourceName);
53      }
54  
55      /**
56       * @deprecated
57       */
58      public String[] list() {
59          if (store == null) {
60              return new String[0];
61          }
62          final List names = new ArrayList();
63          
64          for (final Iterator it = store.keySet().iterator(); it.hasNext();) {
65              final String name = (String) it.next();
66              names.add(name);
67          }
68  
69          return (String[]) names.toArray(new String[store.size()]);
70      }
71      
72      public String toString() {
73          return this.getClass().getName() + store.toString();
74      }
75  }