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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.readers;
19  
20  import java.util.Map;
21  import java.util.HashMap;
22  
23  /**
24   * A memory based reader to compile from memory
25   * 
26   * @author tcurdt
27   */
28  public class MemoryResourceReader implements ResourceReader {
29      
30      private Map<String, byte[]> resources = null;
31  
32      public boolean isAvailable( final String pResourceName ) {
33          if (resources == null) {
34              return false;
35          }
36  
37          return resources.containsKey(pResourceName);
38      }
39      
40      public void add( final String pResourceName, final byte[] pContent ) {
41          if (resources == null) {
42              resources = new HashMap<String, byte[]>();
43          }
44          
45          resources.put(pResourceName, pContent);
46      }
47      
48      public void remove( final String pResourceName ) {
49          if (resources != null) {
50              resources.remove(pResourceName);
51          }    
52      }    
53      
54  
55      public byte[] getBytes( final String pResourceName ) {
56          return resources.get(pResourceName);
57      }
58  
59      /**
60       * @deprecated
61       */
62      @Deprecated
63      public String[] list() {
64          if (resources == null) {
65              return new String[0];
66          }
67          return resources.keySet().toArray(new String[resources.size()]);
68      }
69  }