##### Coverage Report - org.apache.commons.scxml.model.If

Classes in this File | Line Coverage | Branch Coverage | Complexity
If |
96% |
100% |
| 2.0;2

1 |  |
     /*
2 |  |
      *
3 |  |
      *   Copyright 2005 The Apache Software Foundation.
4 |  |
      *
5 |  |
      *  Licensed under the Apache License, Version 2.0 (the "License");
6 |  |
      *  you may not use this file except in compliance with the License.
7 |  |
      *  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.commons.scxml.model;
19 |  |
20 |  |
     import java.util.ArrayList;
21 |  |
     import java.util.Collection;
22 |  |
     import java.util.Iterator;
23 |  |
     import java.util.List;
24 |  |
25 |  |
     import org.apache.commons.logging.Log;
26 |  |
     import org.apache.commons.scxml.Context;
27 |  |
     import org.apache.commons.scxml.ErrorReporter;
28 |  |
     import org.apache.commons.scxml.Evaluator;
29 |  |
     import org.apache.commons.scxml.EventDispatcher;
30 |  |
     import org.apache.commons.scxml.SCInstance;
31 |  |
     import org.apache.commons.scxml.SCXMLExpressionException;
32 |  |
33 |  |
     /**
34 |  |
      * The class in this SCXML object model that corresponds to the
35 |  |
      * &lt;if&gt; SCXML element, which serves as a container for conditionally
36 |  |
      * executed elements. &lt;else&gt; and &lt;elseif&gt; can optionally
37 |  |
      * appear within an &lt;if&gt; as immediate children, and serve to partition
38 |  |
      * the elements within an &lt;if&gt;.
39 |  |
      *
40 |  |
      */
41 |  |
     public class If extends Action {
42 |  |
43 |  |
         /**
44 |  |
          * An conditional expression which can be evaluated to true or false.
45 |  |
          */
46 |  |
         private String cond;
47 |  |
48 |  |
         /**
49 |  |
          * The set of executable elements (those that inheriting from
50 |  |
          * Action) that are contained in this &lt;if&gt; element.
51 |  |
          */
52 |  |
         private List actions;
53 |  |
54 |  |
         /**
55 |  |
          * The boolean value that dictates whether the particular child action
56 |  |
          * should be executed.
57 |  |
          */
58 |  |
         private boolean execute;
59 |  |
60 |  |
         /**
61 |  |
          * Constructor.
62 |  |
          */
63 |  |
         public If() {
64 | 11 |
             super();
65 | 11 |
             this.actions = new ArrayList();
66 | 11 |
             this.execute = false;
67 | 11 |
         }
68 |  |
69 |  |
         /**
70 |  |
          * Get the executable actions contained in this &lt;if&gt;.
71 |  |
          *
72 |  |
          * @return Returns the actions.
73 |  |
          */
74 |  |
         public final List getActions() {
75 | 4 |
             return actions;
76 |  |
         }
77 |  |
78 |  |
         /**
79 |  |
          * Add an Action to the list of executable actions contained in
80 |  |
          * this &lt;if&gt;.
81 |  |
          *
82 |  |
          * @param action The action to add.
83 |  |
          */
84 |  |
         public final void addAction(final Action action) {
85 | 14 |
             if (action != null) {
86 | 14 |
                 this.actions.add(action);
87 |  |
             }
88 | 14 |
         }
89 |  |
90 |  |
         /**
91 |  |
          * Get the conditional expression.
92 |  |
          *
93 |  |
          * @return Returns the cond.
94 |  |
          */
95 |  |
         public final String getCond() {
96 | 4 |
             return cond;
97 |  |
         }
98 |  |
99 |  |
         /**
100 |  |
          * Set the conditional expression.
101 |  |
          *
102 |  |
          * @param cond The cond to set.
103 |  |
          */
104 |  |
         public final void setCond(final String cond) {
105 | 11 |
             this.cond = cond;
106 | 11 |
         }
107 |  |
108 |  |
         /**
109 |  |
          * {@inheritDoc}
110 |  |
          */
111 |  |
         public void execute(final EventDispatcher evtDispatcher,
112 |  |
                 final ErrorReporter errRep, final SCInstance scInstance,
113 |  |
                 final Log appLog, final Collection derivedEvents)
114 |  |
         throws ModelException, SCXMLExpressionException {
115 | 7 |
             State parentState = getParentState();
116 | 7 |
             Context ctx = scInstance.getContext(parentState);
117 | 7 |
             Evaluator eval = scInstance.getEvaluator();
118 | 7 |
             execute = eval.evalCond(ctx, cond).booleanValue();
119 |  |
             // The "if" statement is a "container"
120 | 7 |
             for (Iterator ifiter = actions.iterator(); ifiter.hasNext();) {
121 | 11 |
                 Action aa = (Action) ifiter.next();
122 | 11 |
                 if (execute && !(aa instanceof ElseIf)
123 |  |
                         && !(aa instanceof Else)) {
124 | 7 |
                     aa.execute(evtDispatcher, errRep, scInstance, appLog,
125 |  |
                         derivedEvents);
126 | 4 |
                 } else if (execute
127 |  |
                         && (aa instanceof ElseIf || aa instanceof Else)) {
128 | 0 |
                     break;
129 | 4 |
                 } else if (aa instanceof Else) {
130 | 1 |
                     execute = true;
131 | 3 |
                 } else if (aa instanceof ElseIf) {
132 | 1 |
                     execute = eval.evalCond(ctx, ((ElseIf) aa).getCond())
133 |  |
                             .booleanValue();
134 |  |
                 }
135 |  |
             }
136 | 7 |
         }
137 |  |
138 |  |
     }
139 |  |