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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  package org.apache.myfaces.renderkit;
20  
21  import java.util.HashMap;
22  import java.util.Iterator;
23  import java.util.Map;
24  import java.util.logging.Level;
25  import java.util.logging.Logger;
26  
27  import javax.faces.FacesException;
28  import javax.faces.context.FacesContext;
29  import javax.faces.render.RenderKit;
30  import javax.faces.render.RenderKitFactory;
31  
32  /**
33   * RenderKitFactory implementation as defined in Spec. JSF.7.3
34   * 
35   * @author Manfred Geiler (latest modification by $Author: struberg $)
36   * @version $Revision: 1188235 $ $Date: 2011-10-24 12:09:33 -0500 (Mon, 24 Oct 2011) $
37   */
38  public class RenderKitFactoryImpl extends RenderKitFactory
39  {
40      //private static final Log log = LogFactory.getLog(RenderKitFactoryImpl.class);
41      private static final Logger log = Logger.getLogger(RenderKitFactoryImpl.class.getName());
42  
43      private Map<String, RenderKit> _renderkits = new HashMap<String, RenderKit>();
44  
45      public RenderKitFactoryImpl()
46      {
47      }
48  
49      public void purgeRenderKit()
50      {
51          _renderkits.clear();
52      }
53  
54      @Override
55      public void addRenderKit(String renderKitId, RenderKit renderKit)
56      {
57          if (renderKitId == null)
58          {
59              throw new NullPointerException("renderKitId");
60          }
61          if (renderKit == null)
62          {
63              throw new NullPointerException("renderKit");
64          }
65          if (log.isLoggable(Level.INFO))
66          {
67              if (_renderkits.containsKey(renderKitId))
68              {
69                  log.info("RenderKit with renderKitId '" + renderKitId + "' was replaced.");
70              }
71          }
72          _renderkits.put(renderKitId, renderKit);
73      }
74  
75      @Override
76      public RenderKit getRenderKit(FacesContext context, String renderKitId) throws FacesException
77      {
78          if (renderKitId == null)
79          {
80              throw new NullPointerException("renderKitId");
81          }
82          RenderKit renderkit = _renderkits.get(renderKitId);
83          if (renderkit == null)
84          {
85              // throw new IllegalArgumentException("Unknown RenderKit '" + renderKitId + "'.");
86              // JSF Spec API Doc says:
87              // "If there is no registered RenderKit for the specified identifier, return null"
88              // vs "IllegalArgumentException - if no RenderKit instance can be returned for the specified identifier"
89              // First sentence is more precise, so we just log a warning
90              log.warning("Unknown RenderKit '" + renderKitId + "'.");
91          }
92          return renderkit;
93      }
94  
95      @Override
96      public Iterator<String> getRenderKitIds()
97      {
98          return _renderkits.keySet().iterator();
99      }
100 }