1 /*

     2 * Copyright (c) 2007-2008 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of the License "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description: 

    15 *

    16 */

    17 

    18 package com.nokia.ant.taskdefs;

    19 

    20 import org.apache.tools.ant.BuildException;

    21 import org.apache.tools.ant.Task;

    22 import org.apache.tools.ant.types.Reference;

    23 import java.util.Iterator;

    24 import java.util.Vector;

    25 import com.nokia.ant.types.VariableSet;

    26 import com.nokia.ant.types.Variable;

    27 

    28 

    29 /**

    30  * To retrive a variable value from a collection of variable set based on name, which contains property-value in pair.

    31  *  

    32  * <pre>

    33  * Example:

    34  * 

    35  * <hlm:argSet id="test.variableSet">

    36  * <variable name="v1" value="the_value_1"/>

    37  *     <variable name="v2" value="the_value_2"/>

    38  *      <variable name="v3" value="the_value_3"/>

    39  * </hlm:argSet>

    40  *       

    41  *  <hlm:getVariableValue name="v3" property="v1.value">

    42  * <hlm:argSet refid="test.variableSet"/>

    43  * </hlm:getVariableValue>

    44  * </pre>

    45  * @ant.task name="getVariableValue"

    46  */

    47 public class GetValueFromVariableSet extends Task {

    48     private String name;

    49     private String property;

    50     private Vector<VariableSet> variablesets = new Vector<VariableSet>();

    51 

    52     public void setName(String name) {

    53         this.name = name;

    54     }

    55 

    56     public void setProperty(String property) {

    57         this.property = property;

    58     }

    59 

    60     public void add(VariableSet vs) {

    61         variablesets.add(vs);

    62     }

    63 

    64     public VariableSet createVariableSet() {

    65         VariableSet vs = new VariableSet();

    66         variablesets.add(vs);

    67         return vs;

    68     }

    69 

    70     public void execute() {

    71         if (name == null)

    72             throw new BuildException("'name' attribute has not been defined.");

    73         if (property == null)

    74             throw new BuildException(

    75                     "'property' attribute has not been defined.");

    76 

    77         for (Iterator<VariableSet> vsit = variablesets.iterator(); vsit

    78                 .hasNext();) {

    79             VariableSet vs = vsit.next();

    80             if (vs.isReference()) {

    81                 Reference reference = vs.getRefid();

    82                 vs = (VariableSet)reference.getReferencedObject(getProject());

    83             }

    84             for (Iterator vit = vs.getVariables().iterator(); vit.hasNext();) {

    85                 Variable v = (Variable) vit.next();

    86                 if (v.getName().equals(name)) {

    87                     log("Setting '" + property + "' property to '" + v.getValue() + "'");

    88                     getProject().setProperty(property, v.getValue());

    89                     return;

    90                 }

    91             }

    92         }

    93 

    94         throw new BuildException("Could not find '" + name + "' variable.");

    95     }

    96 

    97 }