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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.commons.scxml.env.jexl;
18  
19  import java.util.Map;
20  
21  import org.apache.commons.scxml.Builtin;
22  import org.apache.commons.scxml.Context;
23  import org.apache.commons.scxml.env.SimpleContext;
24  
25  /***
26   * JEXL Context implementation for Commons SCXML.
27   *
28   */
29  public class JexlContext extends SimpleContext
30      implements org.apache.commons.jexl.JexlContext {
31  
32      /*** Serial version UID. */
33      private static final long serialVersionUID = 1L;
34  
35      /***
36       * Constructor.
37       */
38      public JexlContext() {
39          super();
40          getVars().put("_builtin", new Builtin());
41      }
42  
43      /***
44       * Constructor with initial vars.
45       *
46       * @param initialVars The initial set of variables.
47       */
48      public JexlContext(final Map initialVars) {
49          super(initialVars);
50          getVars().put("_builtin", new Builtin());
51      }
52  
53      /***
54       * Constructor with parent context.
55       *
56       * @param parent The parent context.
57       */
58      public JexlContext(final Context parent) {
59          super(parent);
60          getVars().put("_builtin", new Builtin());
61      }
62  
63      /***
64       * Set the variables map.
65       *
66       * @param vars The new variables map.
67       *
68       * @see org.apache.commons.jexl.JexlContext#setVars(Map)
69       * @see org.apache.commons.scxml.env.SimpleContext#setVars(Map)
70       */
71      public void setVars(final Map vars) {
72          super.setVars(vars);
73          getVars().put("_builtin", new Builtin());
74      }
75  
76      /***
77       * Get the variables map.
78       *
79       * @return Map The variables map.
80       *
81       * @see org.apache.commons.jexl.JexlContext#getVars()
82       * @see org.apache.commons.scxml.env.SimpleContext#getVars()
83       */
84      public Map getVars() {
85          return super.getVars();
86      }
87  
88      /***
89       * Clear this Context.
90       *
91       * @see org.apache.commons.scxml.Context#reset()
92       */
93      public void reset() {
94          super.reset();
95          getVars().put("_builtin", new Builtin());
96      }
97  
98  }
99