JetspeedPowerToolFactory xref

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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  package org.apache.jetspeed.velocity;
18  
19  import java.lang.reflect.Constructor;
20  
21  import javax.portlet.PortletException;
22  
23  import org.apache.commons.logging.Log;
24  import org.apache.commons.logging.LogFactory;
25  import org.apache.jetspeed.aggregator.PortletRenderer;
26  import org.apache.jetspeed.layout.JetspeedPowerTool;
27  import org.apache.jetspeed.request.RequestContext;
28  import org.apache.jetspeed.services.title.DynamicTitleService;
29  
30  public class JetspeedPowerToolFactory implements org.apache.jetspeed.layout.JetspeedPowerToolFactory
31  {
32      protected static final Log log = LogFactory.getLog(JetspeedPowerToolFactory.class);
33      
34      private Class jptClass;
35      private Constructor constructor;
36      private DynamicTitleService titleService;
37      
38      /* Allows us to render portlets and other fragments */
39      private PortletRenderer renderer;
40      
41      public JetspeedPowerToolFactory(String jptClassName, DynamicTitleService titleService, PortletRenderer renderer)
42      throws ClassNotFoundException, NoSuchMethodException
43      {
44          jptClass = Thread.currentThread().getContextClassLoader().loadClass(jptClassName);
45          constructor =
46              jptClass.getConstructor(
47                  new Class[] {RequestContext.class, DynamicTitleService.class, PortletRenderer.class});        
48          this.titleService = titleService;
49          this.renderer = renderer;
50      }
51         
52      public JetspeedPowerTool getJetspeedPowerTool(RequestContext requestContext)
53      throws PortletException
54      {
55          try
56          {
57          	Object [] initArgs = { requestContext, this.titleService, this.renderer };
58              return (JetspeedPowerTool)constructor.newInstance(initArgs);
59          }
60          catch (Exception e)
61          {
62              e.printStackTrace();
63              throw new PortletException(e);
64          }
65      }
66  }
67