2009/05/20 - Apache Shale has been retired.

For more information, please explore the Attic.


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  /*
19   * $Id: ClayNamespaceBuilderRule.java 464373 2006-10-16 04:21:54Z rahul $
20   */
21  package org.apache.shale.clay.parser.builder.chain;
22  
23  import org.apache.commons.chain.Command;
24  import org.apache.commons.chain.Context;
25  import org.apache.shale.clay.parser.Node;
26  import org.apache.shale.clay.parser.builder.Builder;
27  import org.apache.shale.clay.parser.builder.ElementBuilder;
28  
29  /***
30   * <p>This class defines the rules that bind HTML
31   * {@link org.apache.shale.clay.parser.Node}'s resembling
32   * the {@link org.apache.shale.clay.component.Clay} DTD into
33   * corresponding {@link Builder}'s.  The html nodes will be
34   * defined in their own namespace.</p>
35   */
36  public class ClayNamespaceBuilderRule implements Command {
37  
38      /***
39       * <p>A list of {@link Builder}'s used to handle converting
40       * the xhtml clay namespace into {@link org.apache.shale.clay.config.beans.ElementBean}'s
41       * used by the {@link org.apache.shale.clay.component.Clay} component.</p>
42       */
43      private static final Builder[] BUILDERS = {new ElementBuilder()};
44  
45      /***
46       * <p>Maps matching html {@link org.apache.shale.clay.parser.Node}'s to
47       * corresponding builders.</p>
48       *
49       * @param context commons chains
50       * @return <code>true</code> if the chain is done
51       * @exception Exception propagated up to the top of the chain
52       */
53      public boolean execute(Context context) throws Exception {
54  
55          boolean isFinal = false;
56  
57          BuilderRuleContext builderRuleContext = (BuilderRuleContext) context;
58          Node node = builderRuleContext.getNode();
59  
60          if (node.isWellFormed() && node.getName().equals("element")) {
61              builderRuleContext.setBuilder(BUILDERS[0]);
62              isFinal = true;
63          }
64  
65          return isFinal;
66      }
67  
68  }
69