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1   package org.apache.maven.werkz.jelly;
2   
3   /* ====================================================================
4    *   Licensed to the Apache Software Foundation (ASF) under one or more
5    *   contributor license agreements.  See the NOTICE file distributed with
6    *   this work for additional information regarding copyright ownership.
7    *   The ASF licenses this file to You under the Apache License, Version 2.0
8    *   (the "License"); you may not use this file except in compliance with
9    *   the License.  You may obtain a copy of the License at
10   *
11   *       http://www.apache.org/licenses/LICENSE-2.0
12   *
13   *   Unless required by applicable law or agreed to in writing, software
14   *   distributed under the License is distributed on an "AS IS" BASIS,
15   *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16   *   See the License for the specific language governing permissions and
17   *   limitations under the License.
18   * ====================================================================
19   */
20  
21  /*
22   $Id: ProjectTag.java 517014 2007-03-11 21:15:50Z ltheussl $
23  
24   Copyright 2002 (C) The Werken Company. All Rights Reserved.
25  
26   Redistribution and use of this software and associated documentation
27   ("Software"), with or without modification, are permitted provided
28   that the following conditions are met:
29  
30   1. Redistributions of source code must retain copyright
31   statements and notices.  Redistributions must also contain a
32   copy of this document.
33  
34   2. Redistributions in binary form must reproduce the
35   above copyright notice, this list of conditions and the
36   following disclaimer in the documentation and/or other
37   materials provided with the distribution.
38  
39   3. The name "werkz" must not be used to endorse or promote
40   products derived from this Software without prior written
41   permission of The Werken Company.  For written permission,
42   please contact bob@werken.com.
43  
44   4. Products derived from this Software may not be called "werkz"
45   nor may "werkz" appear in their names without prior written
46   permission of The Werken Company. "werkz" is a registered
47   trademark of The Werken Company.
48  
49   5. Due credit should be given to "the werkz project"
50   ( http://werkz.werken.com/ ).
51  
52   THIS SOFTWARE IS PROVIDED BY THE WERKEN COMPANY AND CONTRIBUTORS
53   ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
54   NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
55   FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
56   THE WERKEN COMPANY OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
57   INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
58   (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
59   SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
60   HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
61   STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
62   ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
63   OF THE POSSIBILITY OF SUCH DAMAGE.
64  
65   */
66  
67  import org.apache.commons.jelly.JellyTagException;
68  import org.apache.commons.jelly.XMLOutput;
69  import org.apache.commons.jelly.tags.ant.AntTagLibrary;
70  import org.apache.maven.werkz.WerkzProject;
71  
72  /**
73   * The root tag of a Project definition.
74   *
75   * @author <a href="mailto:jstrachan@apache.org">James Strachan</a>
76   * @version $Revision: 1.2 $
77   */
78  public class ProjectTag
79      extends WerkzTagSupport
80  {
81  
82      /** the project */
83      private WerkzProject project;
84  
85      private String defaultGoalName;
86  
87      public ProjectTag()
88      {
89          super( true );
90      }
91  
92      /**
93       * @return the project instance
94       */
95      public WerkzProject getProject()
96      {
97          if ( ( project == null ) && ( context != null ) )
98          {
99              // we may be invoked inside a child script, so lets try find the parent project
100             project = (WerkzProject) context.findVariable( "org.apache.commons.jelly.werkz.Project" );
101             if ( project == null )
102             {
103                 project = new WerkzProject();
104                 context.setVariable( "org.apache.commons.jelly.werkz.Project", project );
105             }
106         }
107         return project;
108     }
109 
110     // Tag interface
111     //-------------------------------------------------------------------------
112 
113     /**
114      * Evaluate the body to register all the various goals and pre/post conditions
115      * then run all the current targets
116      */
117     public void doTag( XMLOutput output )
118         throws JellyTagException
119     {
120         // force project to be lazily constructed
121 
122         getProject().setDefaultGoalName( this.defaultGoalName );
123 
124         org.apache.tools.ant.Project antProject = AntTagLibrary.getProject( context );
125 
126         // allow access to Ant methods via the project class
127         context.setVariable( "project", antProject );
128 
129         invokeBody( output );
130     }
131 
132     public void setDefault( String defaultGoalName )
133     {
134         this.defaultGoalName = defaultGoalName;
135     }
136 }