1 package org.apache.velocity.runtime.parser.node;
2
3 /*
4 * Licensed to the Apache Software Foundation (ASF) under one
5 * or more contributor license agreements. See the NOTICE file
6 * distributed with this work for additional information
7 * regarding copyright ownership. The ASF licenses this file
8 * to you under the Apache License, Version 2.0 (the
9 * "License"); you may not use this file except in compliance
10 * with the License. You may obtain a copy of the License at
11 *
12 * http://www.apache.org/licenses/LICENSE-2.0
13 *
14 * Unless required by applicable law or agreed to in writing,
15 * software distributed under the License is distributed on an
16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17 * KIND, either express or implied. See the License for the
18 * specific language governing permissions and limitations
19 * under the License.
20 */
21
22 import java.util.HashMap;
23 import java.util.Map;
24
25 import org.apache.velocity.context.InternalContextAdapter;
26 import org.apache.velocity.exception.MethodInvocationException;
27 import org.apache.velocity.runtime.parser.Parser;
28
29 /**
30 * AST Node for creating a map / dictionary.
31 *
32 * This class was originally generated from Parset.jjt.
33 *
34 * @version $Id: ASTMap.java 685685 2008-08-13 21:43:27Z nbubna $
35 * @since 1.5
36 */
37 public class ASTMap extends SimpleNode
38 {
39 /**
40 * @param id
41 */
42 public ASTMap(int id)
43 {
44 super(id);
45 }
46
47 /**
48 * @param p
49 * @param id
50 */
51 public ASTMap(Parser p, int id)
52 {
53 super(p, id);
54 }
55
56 /**
57 * @see org.apache.velocity.runtime.parser.node.SimpleNode#jjtAccept(org.apache.velocity.runtime.parser.node.ParserVisitor, java.lang.Object)
58 */
59 public Object jjtAccept(ParserVisitor visitor, Object data)
60 {
61 return visitor.visit(this, data);
62 }
63
64 /**
65 * @see org.apache.velocity.runtime.parser.node.SimpleNode#value(org.apache.velocity.context.InternalContextAdapter)
66 */
67 public Object value(InternalContextAdapter context)
68 throws MethodInvocationException
69 {
70 int size = jjtGetNumChildren();
71
72 Map objectMap = new HashMap();
73
74 for (int i = 0; i < size; i += 2)
75 {
76 SimpleNode keyNode = (SimpleNode) jjtGetChild(i);
77 SimpleNode valueNode = (SimpleNode) jjtGetChild(i+1);
78
79 Object key = (keyNode == null ? null : keyNode.value(context));
80 Object value = (valueNode == null ? null : valueNode.value(context));
81
82 objectMap.put(key, value);
83 }
84
85 return objectMap;
86 }
87 }