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.cocoon.components.treeprocessor.sitemap;
18
19 import java.util.Map;
20
21 import org.apache.avalon.framework.parameters.Parameters;
22 import org.apache.cocoon.components.treeprocessor.InvokeContext;
23 import org.apache.cocoon.components.treeprocessor.ParameterizableProcessingNode;
24 import org.apache.cocoon.components.treeprocessor.PipelineEventComponentProcessingNode;
25 import org.apache.cocoon.components.treeprocessor.ProcessingNode;
26 import org.apache.cocoon.components.treeprocessor.variables.VariableResolver;
27 import org.apache.cocoon.environment.Environment;
28 import org.apache.cocoon.sitemap.PatternException;
29
30 /**
31 *
32 * @author <a href="mailto:sylvain@apache.org">Sylvain Wallez</a>
33 * @version CVS $Id: GenerateNode.java 433543 2006-08-22 06:22:54Z crossley $
34 */
35 public class GenerateNode extends PipelineEventComponentProcessingNode implements ParameterizableProcessingNode {
36
37 private String generatorName;
38
39 private VariableResolver source;
40
41 private Map parameters;
42
43
44 public GenerateNode(String name, VariableResolver source) throws PatternException {
45 this.generatorName = name;
46 this.source = source;
47 }
48
49 public void setParameters(Map parameterMap) {
50 this.parameters = parameterMap;
51 }
52
53 public final boolean invoke(Environment env, InvokeContext context)
54 throws Exception {
55
56 Map objectModel = env.getObjectModel();
57
58 context.getProcessingPipeline().setGenerator(
59 this.generatorName,
60 source.resolve(context, objectModel),
61 VariableResolver.buildParameters(this.parameters, context, objectModel),
62 this.pipelineHints == null
63 ? Parameters.EMPTY_PARAMETERS
64 : VariableResolver.buildParameters(this.pipelineHints, context, objectModel)
65 );
66
67
68 // Check view
69 if (this.views != null) {
70
71 //inform the pipeline that we have a branch point
72 context.getProcessingPipeline().informBranchPoint();
73
74 String cocoonView = env.getView();
75 if (cocoonView != null) {
76
77 // Get view node
78 ProcessingNode viewNode = (ProcessingNode)this.views.get(cocoonView);
79
80 if (viewNode != null) {
81 if (getLogger().isInfoEnabled()) {
82 getLogger().info("Jumping to view " + cocoonView + " from generator at " + this.getLocation());
83 }
84 return viewNode.invoke(env, context);
85 }
86 }
87 }
88
89 // Return false to continue sitemap invocation
90 return false;
91 }
92 }
Save This Page