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1   /*
2    * Copyright 2002-2006 The Apache Software Foundation.
3    *
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    *
8    *      http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  
17  package org.apache.commons.jexl.parser;
18  
19  import org.apache.commons.jexl.JexlContext;
20  import org.apache.commons.jexl.util.Coercion;
21  
22  /***
23   * Bitwise Or. Syntax: a | b Result is a Long
24   * 
25   * @author Dion Gillard
26   * @since 1.1
27   */
28  
29  public class ASTBitwiseOrNode extends SimpleNode {
30      /***
31       * Create the node given an id.
32       * 
33       * @param id node id.
34       */
35      public ASTBitwiseOrNode(int id) {
36          super(id);
37      }
38  
39      /***
40       * Create a node with the given parser and id.
41       * 
42       * @param p a parser.
43       * @param id node id.
44       */
45      public ASTBitwiseOrNode(Parser p, int id) {
46          super(p, id);
47      }
48  
49      /*** {@inheritDoc} */
50      public Object jjtAccept(ParserVisitor visitor, Object data) {
51          return visitor.visit(this, data);
52      }
53  
54      /*** {@inheritDoc} */
55      public Object value(JexlContext context) throws Exception {
56          Object left = ((SimpleNode) jjtGetChild(0)).value(context);
57          Object right = ((SimpleNode) jjtGetChild(1)).value(context);
58  
59          Long l = left == null ? new Long(0) : Coercion.coerceLong(left);
60          Long r = right == null ? new Long(0) : Coercion.coerceLong(right);
61          return new Long(l.longValue() | r.longValue());
62      }
63  }