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1   /*
2    *  Licensed to the Apache Software Foundation (ASF) under one
3    *  or more contributor license agreements.  See the NOTICE file
4    *  distributed with this work for additional information
5    *  regarding copyright ownership.  The ASF licenses this file
6    *  to you under the Apache License, Version 2.0 (the
7    *  "License"); you may not use this file except in compliance
8    *  with the License.  You may obtain a copy of the License at
9    *  
10   *    http://www.apache.org/licenses/LICENSE-2.0
11   *  
12   *  Unless required by applicable law or agreed to in writing,
13   *  software distributed under the License is distributed on an
14   *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   *  KIND, either express or implied.  See the License for the
16   *  specific language governing permissions and limitations
17   *  under the License. 
18   *  
19   */
20  package org.apache.mina.integration.spring;
21  
22  import org.apache.mina.common.ExecutorThreadModel;
23  import org.springframework.beans.factory.FactoryBean;
24  import org.springframework.beans.factory.InitializingBean;
25  import org.springframework.util.Assert;
26  
27  import edu.emory.mathcs.backport.java.util.concurrent.Executor;
28  
29  /**
30   * Spring {@link FactoryBean} which makes it possible to set up a MINA
31   * {@link ExecutorThreadModel} using Spring. The <code>serviceName</code>
32   * property must be set using {@link #setServiceName(String)}.
33   * 
34   * @author The Apache Directory Project (mina-dev@directory.apache.org)
35   * @version $Rev$, $Date$
36   */
37  public class ExecutorThreadModelFactoryBean implements FactoryBean,
38          InitializingBean {
39      private String serviceName = null;
40  
41      private Executor executor = null;
42  
43      /**
44       * Sets the {@link Executor} to use. If not set a default {@link Executor}
45       * will be used by the {@link ExecutorThreadModel} created by this
46       * factory bean.
47       * 
48       * @param executor the executor.
49       * @throws IllegalArgumentException if the specified value is 
50       *         <code>null</code>.
51       */
52      public void setExecutor(Executor executor) {
53          Assert.notNull(executor, "Property 'executor' may not be null");
54          this.executor = executor;
55      }
56  
57      /**
58       * Sets the name of the service as used in the call to 
59       * {@link ExecutorThreadModel#getInstance(String)}. This property is 
60       * required.
61       * 
62       * @param executor the executor.
63       * @throws IllegalArgumentException if the specified value is 
64       *         <code>null</code>.
65       */
66      public void setServiceName(String serviceName) {
67          Assert.notNull(serviceName, "Property 'serviceName' may not be null");
68          this.serviceName = serviceName;
69      }
70  
71      public Class getObjectType() {
72          return ExecutorThreadModel.class;
73      }
74  
75      public Object getObject() throws Exception {
76          ExecutorThreadModel model = ExecutorThreadModel
77                  .getInstance(serviceName);
78          if (executor != null) {
79              model.setExecutor(executor);
80          }
81          return model;
82      }
83  
84      public boolean isSingleton() {
85          return true;
86      }
87  
88      public void afterPropertiesSet() throws Exception {
89          Assert.notNull(serviceName, "Property 'serviceName' may not be null");
90      }
91  
92  }