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 package org.apache.shale.test.el;
19
20 import java.util.HashMap;
21 import java.util.Map;
22 import javax.el.ValueExpression;
23 import javax.el.VariableMapper;
24
25 /***
26 * <p>Mock implementation of <code>VariableMapper</code>.</p>
27 *
28 * @since 1.0.4
29 */
30
31 public class MockVariableMapper extends VariableMapper {
32
33
34 // ------------------------------------------------------------ Constructors
35
36
37 /*** Creates a new instance of MockVariableMapper */
38 public MockVariableMapper() {
39 }
40
41
42 // ------------------------------------------------------ Instance Variables
43
44
45 /***
46 * <p>Map of <code>ValueExpression</code>s, keyed by variable name.</p>
47 */
48 private Map expressions = new HashMap();
49
50
51 // ----------------------------------------------------- Mock Object Methods
52
53
54 // -------------------------------------------------- FunctionMapper Methods
55
56
57 /*** {@inheritDoc} */
58 public ValueExpression resolveVariable(String variable) {
59
60 return (ValueExpression) expressions.get(variable);
61
62 }
63
64
65 /*** {@inheritDoc} */
66 public ValueExpression setVariable(String variable, ValueExpression expression) {
67
68 ValueExpression original = (ValueExpression) expressions.get(variable);
69 if (expression == null) {
70 expressions.remove(variable);
71 } else {
72 expressions.put(variable, expression);
73 }
74 return original;
75
76 }
77
78
79 }