Coverage Report - org.apache.commons.scxml.model.Var

Classes in this File Line Coverage Branch Coverage Complexity
Var
95% 
100% 
1.167

 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.model;
 18  
 
 19  
 import java.util.Collection;
 20  
 
 21  
 import org.apache.commons.logging.Log;
 22  
 import org.apache.commons.scxml.Context;
 23  
 import org.apache.commons.scxml.ErrorReporter;
 24  
 import org.apache.commons.scxml.Evaluator;
 25  
 import org.apache.commons.scxml.EventDispatcher;
 26  
 import org.apache.commons.scxml.SCInstance;
 27  
 import org.apache.commons.scxml.SCXMLExpressionException;
 28  
 import org.apache.commons.scxml.TriggerEvent;
 29  
 
 30  
 /**
 31  
  * The class in this SCXML object model that corresponds to the
 32  
  * <var> SCXML element.
 33  
  *
 34  
  */
 35  
 public class Var extends Action {
 36  
 
 37  
     /**
 38  
      * Serial version UID.
 39  
      */
 40  
     private static final long serialVersionUID = 1L;
 41  
 
 42  
     /**
 43  
      * The name of the variable to be created.
 44  
      */
 45  
     private String name;
 46  
 
 47  
     /**
 48  
      * The expression that evaluates to the initial value of the variable.
 49  
      */
 50  
     private String expr;
 51  
 
 52  
     /**
 53  
      * Constructor.
 54  
      */
 55  
     public Var() {
 56  38
         super();
 57  38
     }
 58  
 
 59  
     /**
 60  
      * Get the expression that evaluates to the initial value
 61  
      * of the variable.
 62  
      *
 63  
      * @return String Returns the expr.
 64  
      */
 65  
     public final String getExpr() {
 66  6
         return expr;
 67  
     }
 68  
 
 69  
     /**
 70  
      * Set the expression that evaluates to the initial value
 71  
      * of the variable.
 72  
      *
 73  
      * @param expr The expr to set.
 74  
      */
 75  
     public final void setExpr(final String expr) {
 76  38
         this.expr = expr;
 77  38
     }
 78  
 
 79  
     /**
 80  
      * Get the name of the (new) variable.
 81  
      *
 82  
      * @return String Returns the name.
 83  
      */
 84  
     public final String getName() {
 85  6
         return name;
 86  
     }
 87  
 
 88  
     /**
 89  
      * Set the name of the (new) variable.
 90  
      *
 91  
      * @param name The name to set.
 92  
      */
 93  
     public final void setName(final String name) {
 94  38
         this.name = name;
 95  38
     }
 96  
 
 97  
     /**
 98  
      * {@inheritDoc}
 99  
      */
 100  
     public void execute(final EventDispatcher evtDispatcher,
 101  
             final ErrorReporter errRep, final SCInstance scInstance,
 102  
             final Log appLog, final Collection derivedEvents)
 103  
     throws ModelException, SCXMLExpressionException {
 104  34
         Context ctx = scInstance.getContext(getParentState());
 105  34
         Evaluator eval = scInstance.getEvaluator();
 106  34
         ctx.setLocal(getNamespacesKey(), getNamespaces());
 107  34
         Object varObj = eval.eval(ctx, expr);
 108  34
         ctx.setLocal(getNamespacesKey(), null);
 109  34
         ctx.setLocal(name, varObj);
 110  34
         if (appLog.isDebugEnabled()) {
 111  0
             appLog.debug("<var>: Defined variable '" + name
 112  
                 + "' with initial value '" + String.valueOf(varObj) + "'");
 113  
         }
 114  34
         TriggerEvent ev = new TriggerEvent(name + ".change",
 115  
                 TriggerEvent.CHANGE_EVENT);
 116  34
         derivedEvents.add(ev);
 117  34
     }
 118  
 
 119  
 }
 120