Coverage report

| %line | %branch
--- | --- | ---
org.apache.commons.jexl.parser.ASTReference |
60% |
88% |

1 |  |
     /*
2 |  |
      * Copyright 2002,2004 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 |  |
     package org.apache.commons.jexl.parser;
17 |  |
18 |  |
     import org.apache.commons.jexl.JexlContext;
19 |  |
20 |  |
     /**
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      *  reference - any variable expression
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      *
23 |  |
      *  @author <a href="mailto:geirm@apache.org">Geir Magnusson Jr.</a>
24 |  |
      *  @version $Id: ASTReference.java,v 1.4 2004/09/01 00:35:38 dion Exp $
25 |  |
      */
26 |  |
     public class ASTReference extends SimpleNode
27 |  |
     {
28 |  |
         SimpleNode root;
29 |  |
30 |  |
         public ASTReference(int id)
31 |  |
         {
32 | 0 |
             super(id);
33 | 0 |
         }
34 |  |
35 |  |
         public ASTReference(Parser p, int id)
36 |  |
         {
37 | 2937 |
             super(p, id);
38 | 2937 |
         }
39 |  |
40 |  |
41 |  |
         /** Accept the visitor. **/
42 |  |
         public Object jjtAccept(ParserVisitor visitor, Object data)
43 |  |
         {
44 | 0 |
             return visitor.visit(this, data);
45 |  |
         }
46 |  |
47 |  |
         public Object value(JexlContext jc)
48 |  |
             throws Exception
49 |  |
         {
50 | 2796 |
             return  execute(null,jc);
51 |  |
         }
52 |  |
53 |  |
         public void jjtClose()
54 |  |
         {
55 | 2922 |
             root = (SimpleNode) jjtGetChild(0);
56 | 2922 |
         }
57 |  |
58 |  |
         public Object execute(Object obj, JexlContext jc)
59 |  |
                  throws Exception
60 |  |
          {
61 | 2796 |
              Object o = root.value(jc);
62 |  |
63 |  |
              /*
64 |  |
               * ignore the first child - it's our identifier
65 |  |
               */
66 | 3777 |
              for(int i=1; i<jjtGetNumChildren(); i++)
67 |  |
              {
68 | 1023 |
                  o = ( (SimpleNode) jjtGetChild(i)).execute(o,jc);
69 |  |
70 | 558 |
                  // check for a variable in the context named
71 | 27 |
                  // child0.child1.child2 etc
72 | 450 |
                  if(o == null) {
73 | 90 |
                      String varName = getIdentifierToDepth(i);
74 | 1710 |
                      o = jc.getVars().get(varName);
75 |  |
                  }
76 |  |
              }
77 |  |
78 | 1134 |
              return o;
79 |  |
          }
80 |  |
81 |  |
         /**
82 |  |
          * This method returns a variable from this identifier and
83 |  |
          * it's children. For an expression like 'a.b.c', a is child
84 |  |
          * zero, b is child 1 and c is child 2.
85 |  |
          *
86 |  |
          * @param i the depth of the child nodes to go to
87 |  |
          * @return the a dotted variable from this identifier and it's
88 |  |
          *    child nodes.
89 |  |
          */
90 |  |
         private String getIdentifierToDepth(int i) {
91 | 90 |
             StringBuffer varName = new StringBuffer();
92 | 312 |
              for (int j = 0; j <=i; j++) {
93 | 222 |
                  SimpleNode node = (SimpleNode) jjtGetChild(j);
94 | 222 |
                  if (node instanceof ASTIdentclass="keyword">ifier) {
95 | 222 |
                    varName.append(((ASTIdentifier)node).getIdentifierString());
96 | 222 |
                    if (j != i) varName.append('.');
97 |  |
                  }
98 |  |
              }
99 | 90 |
             return varName.toString();
100 |  |
         }
101 |  |
102 |  |
         public String getRootString()
103 |  |
             throws Exception
104 |  |
         {
105 | 0 |
             if ( root instanceof ASTIdentclass="keyword">ifier)
106 | 0 |
                 return ((ASTIdentifier) root).getIdentifierString();
107 |  |
108 | 0 |
             if (root instanceof ASTArrayAccess)
109 | 0 |
                 return ((ASTArrayAccess) root).getIdentifierString();
110 |  |
111 | 0 |
             throw new Exception("programmer error : ASTReference : root not known"
112 |  |
                         + root );
113 |  |
         }
114 |  |
     }

This report is generated by jcoverage, Maven and Maven JCoverage Plugin.