01: /*
02: * Licensed to the Apache Software Foundation (ASF) under one or more
03: * contributor license agreements. See the NOTICE file distributed with
04: * this work for additional information regarding copyright ownership.
05: * The ASF licenses this file to You under the Apache License, Version 2.0
06: * (the "License"); you may not use this file except in compliance with
07: * the License. You may obtain a copy of the License at
08: *
09: * 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;
18:
19: import org.apache.cocoon.environment.Environment;
20:
21: import java.util.Map;
22:
23: /**
24: *
25: * @author <a href="mailto:sylvain@apache.org">Sylvain Wallez</a>
26: * @version CVS $Id: AbstractParentProcessingNode.java 433543 2006-08-22 06:22:54Z crossley $
27: */
28: public abstract class AbstractParentProcessingNode extends
29: AbstractProcessingNode {
30:
31: /**
32: * Invoke all nodes of a node array in order, until one succeeds.
33: *
34: * @param currentMap the <code>Map<code> of parameters produced by this node,
35: * which is added to <code>listOfMap</code>.
36: */
37: protected final boolean invokeNodes(ProcessingNode[] nodes,
38: Environment env, InvokeContext context, String currentName,
39: Map currentMap) throws Exception {
40:
41: context.pushMap(currentName, currentMap);
42:
43: try {
44: for (int i = 0; i < nodes.length; i++) {
45: if (nodes[i].invoke(env, context)) {
46: // Success
47: return true;
48: }
49: }
50: } finally {
51: // No success
52: context.popMap();
53: }
54:
55: return false;
56: }
57:
58: /**
59: * Invoke all nodes of a node array in order, until one succeeds.
60: */
61: protected final boolean invokeNodes(ProcessingNode[] nodes,
62: Environment env, InvokeContext context) throws Exception {
63:
64: for (int i = 0; i < nodes.length; i++) {
65: if (nodes[i].invoke(env, context)) {
66: return true;
67: }
68: }
69:
70: return false;
71: }
72: }
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