1   /*
2    * Copyright 2000-2001,2004 The Apache Software Foundation.
3    * 
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    * 
8    *      http://www.apache.org/licenses/LICENSE-2.0
9    * 
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  
17  /* 
18  
19   */
20  
21  package org.apache.wsrp4j.consumer.driver;
22  
23  import java.util.Hashtable;
24  import java.util.Iterator;
25  
26  import org.apache.wsrp4j.consumer.Producer;
27  import org.apache.wsrp4j.consumer.ProducerRegistry;
28  
29  public abstract class GenericProducerRegistryImpl implements ProducerRegistry {
30  
31      private Hashtable producers = null;
32  
33      public GenericProducerRegistryImpl() {
34          producers = new Hashtable();
35      }
36  
37      /**
38       * Add a producer to the registry
39       *
40       * @param producer The producer to add
41       */
42      public void addProducer(Producer producer) {
43          if (producer != null) {
44              producers.put(producer.getID(), producer);
45          }
46      }
47  
48      /**
49       * Get the producer for the given URL
50       * 
51       * @param id The ID of the producer
52       * 
53       * @return The producer with the given ID
54       **/
55      public Producer getProducer(String id) {
56  
57          return (Producer) producers.get(id);
58      }
59  
60      /**
61       * Get all producer in the registry
62       * 
63       * @return Iterator with all producers
64       **/
65      public Iterator getAllProducers() {
66          return producers.values().iterator();
67      }
68  
69      /**
70       * Remove the producer with the given ID from the registry
71       * 
72       * @param id The ID of the producer
73       * 
74       * @return The producer which had been mapped to this id or 
75       *         null if no producer was found with this id
76       **/
77      public Producer removeProducer(String id) {
78          return (Producer) producers.remove(id);
79      }
80  
81      /**
82       * Remove all producer objects from the registry
83       **/
84      public void removeAllProducers() {
85          producers.clear();
86      }
87  
88      /**
89       * Check if a producer with the given ID exists in the registry.
90       * 
91       * @param id The ID of the producer
92       * 
93       * @return True if producer exists with this ID
94       **/
95      public boolean existsProducer(String id) {
96          return producers.containsKey(id);
97      }
98  }