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From jstrac...@apache.org
Subject cvs commit: jakarta-commons-sandbox/jelly/src/java/org/apache/commons/jelly/tags/core ExprTag.java
Date Tue, 11 Jun 2002 21:41:12 GMT
jstrachan    2002/06/11 14:41:11

  Modified:    jelly    build.xml project.xml
               jelly/src/java/org/apache/commons/jelly jelly.properties
               jelly/src/java/org/apache/commons/jelly/tags/core
                        ExprTag.java
  Added:       jelly/src/java/org/apache/commons/jelly/tags/werkz
                        ProjectTag.java TargetTag.java PreTargetTag.java
                        CallbackTagSupport.java PostTargetTag.java
                        package.html WerkzTagSupport.java
                        WerkzTagLibrary.java CallTargetTag.java
               jelly/src/test/org/apache/commons/jelly/werkz example.jelly
  Log:
  Added first cut of the Werkz tag library which implements goal orientated processing, not
unlike Ant's <target> tags except there's full support for callbacks in a nice way.
  This could provide a nice mechanism for implementing flexible pre/post callbacks and introduce
new dependency mechanisms in a Maven build from inside a project.
  
  Its not quite working yet, the <target> never gets fired, though the pre-callbacks
do.
  
  Revision  Changes    Path
  1.1                  jakarta-commons-sandbox/jelly/src/java/org/apache/commons/jelly/tags/werkz/ProjectTag.java
  
  Index: ProjectTag.java
  ===================================================================
  /*
   *
   * ====================================================================
   *
   * The Apache Software License, Version 1.1
   *
   * Copyright (c) 1999 The Apache Software Foundation.  All rights
   * reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   *
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in
   *    the documentation and/or other materials provided with the
   *    distribution.
   *
   * 3. The end-user documentation included with the redistribution, if
   *    any, must include the following acknowlegement:
   *       "This product includes software developed by the
   *        Apache Software Foundation (http://www.apache.org/)."
   *    Alternately, this acknowlegement may appear in the software itself,
   *    if and wherever such third-party acknowlegements normally appear.
   *
   * 4. The names "The Jakarta Project", "Tomcat", and "Apache Software
   *    Foundation" must not be used to endorse or promote products derived
   *    from this software without prior written permission. For written
   *    permission, please contact apache@apache.org.
   *
   * 5. Products derived from this software may not be called "Apache"
   *    nor may "Apache" appear in their names without prior written
   *    permission of the Apache Group.
   *
   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
   * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
   * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
   * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   *
   */
  
  package org.apache.commons.jelly.tags.werkz;
  
  import com.werken.werkz.Werkz;
  
  import java.util.Iterator;
  import java.util.List;
  
  import org.apache.commons.jelly.JellyContext;
  import org.apache.commons.jelly.JellyException;
  import org.apache.commons.jelly.TagSupport;
  import org.apache.commons.jelly.XMLOutput;
  
  /** 
   * The root tag of a Project definition.
   *
   * @author <a href="mailto:jstrachan@apache.org">James Strachan</a>
   * @version $Revision: 1.8 $
   */
  public class ProjectTag extends TagSupport {
  
      /** the project */
      private Werkz project = new Werkz();
          
      public ProjectTag() {
      }
  
  
      /**
       * @return the project instance 
       */
      public Werkz getProject() {
          return project;
      }
      
      
      // Tag interface
      //------------------------------------------------------------------------- 
      
      /** 
       * Evaluate the body to register all the various goals and pre/post conditions
       * then run all the current targets
       */
      public void doTag(XMLOutput output) throws Exception {
          project.clear();
  
          context.setVariable( "org.apache.commons.jelly.werkz.Project", project );
          
          getBody().run(context, output);
      }
  
  
      
      // Implementation methods
      //-------------------------------------------------------------------------        
       
  }
  
  
  
  1.1                  jakarta-commons-sandbox/jelly/src/java/org/apache/commons/jelly/tags/werkz/TargetTag.java
  
  Index: TargetTag.java
  ===================================================================
  /*
   *
   * ====================================================================
   *
   * The Apache Software License, Version 1.1
   *
   * Copyright (c) 1999 The Apache Software Foundation.  All rights
   * reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   *
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in
   *    the documentation and/or other materials provided with the
   *    distribution.
   *
   * 3. The end-user documentation included with the redistribution, if
   *    any, must include the following acknowlegement:
   *       "This product includes software developed by the
   *        Apache Software Foundation (http://www.apache.org/)."
   *    Alternately, this acknowlegement may appear in the software itself,
   *    if and wherever such third-party acknowlegements normally appear.
   *
   * 4. The names "The Jakarta Project", "Tomcat", and "Apache Software
   *    Foundation" must not be used to endorse or promote products derived
   *    from this software without prior written permission. For written
   *    permission, please contact apache@apache.org.
   *
   * 5. Products derived from this software may not be called "Apache"
   *    nor may "Apache" appear in their names without prior written
   *    permission of the Apache Group.
   *
   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
   * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
   * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
   * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   *
   */
  
  package org.apache.commons.jelly.tags.werkz;
  
  import com.werken.werkz.DefaultGoal;
  import com.werken.werkz.Werkz;
  
  import java.util.Iterator;
  import java.util.List;
  
  import org.apache.commons.jelly.JellyException;
  import org.apache.commons.jelly.XMLOutput;
  
  import org.apache.commons.logging.Log;
  import org.apache.commons.logging.LogFactory;
  
  /** 
   * Implements a &lt;target&gt; tag which is similar to the Ant equivalent tag
   * but is based on the Werkz goal engine.
   *
   * @author <a href="mailto:jstrachan@apache.org">James Strachan</a>
   * @version $Revision: 1.8 $
   */
  public class TargetTag extends WerkzTagSupport {
  
      /** The Log to which logging calls will be made. */
      private Log log = LogFactory.getLog(TargetTag.class);
      
      /** the name of the target */
      private String name;
      
      public TargetTag() {
      }
  
  
      // Tag interface
      //------------------------------------------------------------------------- 
      
      /** 
       * Evaluate the body to register all the various goals and pre/post conditions
       * then run all the current targets
       */
      public void doTag(final XMLOutput output) throws Exception {
          
          // lets register a new goal...
          
          getProject().addGoal(
              new DefaultGoal(name) {
                  public void performAction() throws Exception {
                      System.out.println( "Running target: " + name );
                      // lets run the body
                      log.info( "Running target: " + name );
                      getBody().run( context, output);                                   
    
                  }                
              }
          );            
      }
  
  
      
      // Properties
      //------------------------------------------------------------------------- 
      /**
       * @return the name of the target
       */
      public String getName() {
          return name;
      }
  
      /**
       * Sets the name of the target
       */
      public void setName(String name) {
          this.name = name;
      }
  }
  
  
  
  1.1                  jakarta-commons-sandbox/jelly/src/java/org/apache/commons/jelly/tags/werkz/PreTargetTag.java
  
  Index: PreTargetTag.java
  ===================================================================
  /*
   *
   * ====================================================================
   *
   * The Apache Software License, Version 1.1
   *
   * Copyright (c) 1999 The Apache Software Foundation.  All rights
   * reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   *
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in
   *    the documentation and/or other materials provided with the
   *    distribution.
   *
   * 3. The end-user documentation included with the redistribution, if
   *    any, must include the following acknowlegement:
   *       "This product includes software developed by the
   *        Apache Software Foundation (http://www.apache.org/)."
   *    Alternately, this acknowlegement may appear in the software itself,
   *    if and wherever such third-party acknowlegements normally appear.
   *
   * 4. The names "The Jakarta Project", "Tomcat", and "Apache Software
   *    Foundation" must not be used to endorse or promote products derived
   *    from this software without prior written permission. For written
   *    permission, please contact apache@apache.org.
   *
   * 5. Products derived from this software may not be called "Apache"
   *    nor may "Apache" appear in their names without prior written
   *    permission of the Apache Group.
   *
   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
   * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
   * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
   * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   *
   */
  
  package org.apache.commons.jelly.tags.werkz;
  
  import com.werken.werkz.Goal;
  import com.werken.werkz.PreGoalCallback;
  
  import org.apache.commons.jelly.JellyException;
  import org.apache.commons.jelly.XMLOutput;
  
  import org.apache.commons.logging.Log;
  import org.apache.commons.logging.LogFactory;
  
  /** 
   * Implements a &lt;preTarget&gt; tag which provides a callback 
   * which is evaluated before a target.
   *
   * @author <a href="mailto:jstrachan@apache.org">James Strachan</a>
   * @version $Revision: 1.8 $
   */
  public class PreTargetTag extends CallbackTagSupport {
  
      public PreTargetTag() {
      }
  
  
      // Tag interface
      //------------------------------------------------------------------------- 
      
      /** 
       * Evaluate the body to register all the various goals and pre/post conditions
       * then run all the current targets
       */
      public void doTag(final XMLOutput output) throws Exception {
          
          getGoal(getName()).addPreGoalCallback(
              new PreGoalCallback() {
                  public void firePreGoal(Goal goal) throws Exception {
                      System.out.println( "Calling pre target: " + getName() );
                      
                      // lets run the body
                      log.info( "Running pre target: " + getName() );
                      getBody().run( context, output);               
                                               
                      System.out.println( "Called pre target: " + getName() );
                  }                
              }
          );            
      }
  }
  
  
  
  1.1                  jakarta-commons-sandbox/jelly/src/java/org/apache/commons/jelly/tags/werkz/CallbackTagSupport.java
  
  Index: CallbackTagSupport.java
  ===================================================================
  /*
   *
   * ====================================================================
   *
   * The Apache Software License, Version 1.1
   *
   * Copyright (c) 1999 The Apache Software Foundation.  All rights
   * reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   *
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in
   *    the documentation and/or other materials provided with the
   *    distribution.
   *
   * 3. The end-user documentation included with the redistribution, if
   *    any, must include the following acknowlegement:
   *       "This product includes software developed by the
   *        Apache Software Foundation (http://www.apache.org/)."
   *    Alternately, this acknowlegement may appear in the software itself,
   *    if and wherever such third-party acknowlegements normally appear.
   *
   * 4. The names "The Jakarta Project", "Tomcat", and "Apache Software
   *    Foundation" must not be used to endorse or promote products derived
   *    from this software without prior written permission. For written
   *    permission, please contact apache@apache.org.
   *
   * 5. Products derived from this software may not be called "Apache"
   *    nor may "Apache" appear in their names without prior written
   *    permission of the Apache Group.
   *
   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
   * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
   * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
   * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   *
   */
  
  package org.apache.commons.jelly.tags.werkz;
  
  import org.apache.commons.logging.Log;
  import org.apache.commons.logging.LogFactory;
  
  /** 
   * Abstract base class for all callback tags.
   *
   * @author <a href="mailto:jstrachan@apache.org">James Strachan</a>
   * @version $Revision: 1.8 $
   */
  public abstract class CallbackTagSupport extends WerkzTagSupport {
  
      /** The Log to which logging calls will be made. */
      protected Log log = LogFactory.getLog(getClass());
      
      /** the name of the target */
      private String name;
      
      public CallbackTagSupport() {
      }
  
  
      
      // Properties
      //------------------------------------------------------------------------- 
      
      /**
       * @return the name of the target
       */
      public String getName() {
          return name;
      }
  
      /**
       * Sets the name of the target
       */
      public void setName(String name) {
          this.name = name;
      }
  }
  
  
  
  1.1                  jakarta-commons-sandbox/jelly/src/java/org/apache/commons/jelly/tags/werkz/PostTargetTag.java
  
  Index: PostTargetTag.java
  ===================================================================
  /*
   *
   * ====================================================================
   *
   * The Apache Software License, Version 1.1
   *
   * Copyright (c) 1999 The Apache Software Foundation.  All rights
   * reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   *
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in
   *    the documentation and/or other materials provided with the
   *    distribution.
   *
   * 3. The end-user documentation included with the redistribution, if
   *    any, must include the following acknowlegement:
   *       "This product includes software developed by the
   *        Apache Software Foundation (http://www.apache.org/)."
   *    Alternately, this acknowlegement may appear in the software itself,
   *    if and wherever such third-party acknowlegements normally appear.
   *
   * 4. The names "The Jakarta Project", "Tomcat", and "Apache Software
   *    Foundation" must not be used to endorse or promote products derived
   *    from this software without prior written permission. For written
   *    permission, please contact apache@apache.org.
   *
   * 5. Products derived from this software may not be called "Apache"
   *    nor may "Apache" appear in their names without prior written
   *    permission of the Apache Group.
   *
   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
   * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
   * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
   * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   *
   */
  
  package org.apache.commons.jelly.tags.werkz;
  
  import com.werken.werkz.Goal;
  import com.werken.werkz.PreGoalCallback;
  
  import org.apache.commons.jelly.JellyException;
  import org.apache.commons.jelly.XMLOutput;
  
  import org.apache.commons.logging.Log;
  import org.apache.commons.logging.LogFactory;
  
  /** 
   * Implements a &lt;postTarget&gt; tag which provides a callback 
   * which is evaluated after a target has executed.
   *
   * @author <a href="mailto:jstrachan@apache.org">James Strachan</a>
   * @version $Revision: 1.8 $
   */
  public class PostTargetTag extends CallbackTagSupport {
  
      public PostTargetTag() {
      }
  
  
      // Tag interface
      //------------------------------------------------------------------------- 
      
      /** 
       * Evaluate the body to register all the various goals and pre/post conditions
       * then run all the current targets
       */
      public void doTag(final XMLOutput output) throws Exception {
          
          getGoal(getName()).addPostGoalCallback(
              new PreGoalCallback() {
                  public void firePreGoal(Goal goal) throws Exception {
                      // lets run the body
                      log.info( "Running post target: " + getName() );
                      getBody().run( context, output);                                   
    
                  }                
              }
          );            
      }
  }
  
  
  
  1.1                  jakarta-commons-sandbox/jelly/src/java/org/apache/commons/jelly/tags/werkz/package.html
  
  Index: package.html
  ===================================================================
  <html>
  <head>
  </head>
  <body>
  
    <p>A tag library for defining targets (goals) and having pre/post dependencies which
uses the 
    <a href="http://werkz.sourceforge.net/">Werkz</a> library for resolving goals
and dependencies.
    </p>
  </body>
  </html>
  
  
  
  1.1                  jakarta-commons-sandbox/jelly/src/java/org/apache/commons/jelly/tags/werkz/WerkzTagSupport.java
  
  Index: WerkzTagSupport.java
  ===================================================================
  /*
   *
   * ====================================================================
   *
   * The Apache Software License, Version 1.1
   *
   * Copyright (c) 1999 The Apache Software Foundation.  All rights
   * reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   *
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in
   *    the documentation and/or other materials provided with the
   *    distribution.
   *
   * 3. The end-user documentation included with the redistribution, if
   *    any, must include the following acknowlegement:
   *       "This product includes software developed by the
   *        Apache Software Foundation (http://www.apache.org/)."
   *    Alternately, this acknowlegement may appear in the software itself,
   *    if and wherever such third-party acknowlegements normally appear.
   *
   * 4. The names "The Jakarta Project", "Tomcat", and "Apache Software
   *    Foundation" must not be used to endorse or promote products derived
   *    from this software without prior written permission. For written
   *    permission, please contact apache@apache.org.
   *
   * 5. Products derived from this software may not be called "Apache"
   *    nor may "Apache" appear in their names without prior written
   *    permission of the Apache Group.
   *
   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
   * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
   * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
   * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   *
   */
  
  package org.apache.commons.jelly.tags.werkz;
  
  import com.werken.werkz.Goal;
  import com.werken.werkz.Werkz;
  
  import org.apache.commons.jelly.JellyException;
  import org.apache.commons.jelly.TagSupport;
  
  /** 
   * The abstract base class for Werkz child tags
   *
   * @author <a href="mailto:jstrachan@apache.org">James Strachan</a>
   * @version $Revision: 1.8 $
   */
  public abstract class WerkzTagSupport extends TagSupport {
  
      public WerkzTagSupport() {
      }
  
      
      // Implementation methods
      //-------------------------------------------------------------------------        
       
  
      /**
       * @return the goal of the given name or
       *  throws a JellyExceptoin if the goal could not be found
       */
      protected Goal getGoal(String name) throws JellyException {
          Werkz project = getProject();
          if ( project == null ) {
              throw new JellyException( "Must use this tag inside a <maven:project>
tag" );
          }
          Goal goal = project.getGoal(name);
          if ( goal == null ) {
              throw new JellyException( "No such target name: " + name );
          }
          return goal;
      }
      
      /**
       * @return the goal manager instance 
       */
      protected Werkz getProject() {
          ProjectTag tag = (ProjectTag) findAncestorWithClass(ProjectTag.class);
          if ( tag != null) {
              return tag.getProject();
          }
          return (Werkz) context.getVariable( "org.apache.commons.jelly.werkz.Project" );
      }
      
      
  }
  
  
  
  1.1                  jakarta-commons-sandbox/jelly/src/java/org/apache/commons/jelly/tags/werkz/WerkzTagLibrary.java
  
  Index: WerkzTagLibrary.java
  ===================================================================
  /*
   * $Header: /home/cvs/jakarta-commons-sandbox/jelly/src/java/org/apache/commons/jelly/tags/xml/XMLTagLibrary.java,v
1.6 2002/05/17 18:04:00 jstrachan Exp $
   * $Revision: 1.6 $
   * $Date: 2002/05/17 18:04:00 $
   *
   * ====================================================================
   *
   * The Apache Software License, Version 1.1
   *
   * Copyright (c) 1999-2002 The Apache Software Foundation.  All rights
   * reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   *
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in
   *    the documentation and/or other materials provided with the
   *    distribution.
   *
   * 3. The end-user documentation included with the redistribution, if
   *    any, must include the following acknowlegement:
   *       "This product includes software developed by the
   *        Apache Software Foundation (http://www.apache.org/)."
   *    Alternately, this acknowlegement may appear in the software itself,
   *    if and wherever such third-party acknowlegements normally appear.
   *
   * 4. The names "The Jakarta Project", "Commons", and "Apache Software
   *    Foundation" must not be used to endorse or promote products derived
   *    from this software without prior written permission. For written
   *    permission, please contact apache@apache.org.
   *
   * 5. Products derived from this software may not be called "Apache"
   *    nor may "Apache" appear in their names without prior written
   *    permission of the Apache Group.
   *
   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
   * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
   * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
   * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   * 
   * $Id: XMLTagLibrary.java,v 1.6 2002/05/17 18:04:00 jstrachan Exp $
   */
  package org.apache.commons.jelly.tags.werkz;
  
  import java.util.Iterator;
  import java.util.List;
  
  import org.apache.commons.jelly.JellyContext;
  import org.apache.commons.jelly.JellyException;
  import org.apache.commons.jelly.Script;
  import org.apache.commons.jelly.TagLibrary;
  
  import org.apache.commons.logging.Log;
  import org.apache.commons.logging.LogFactory;
  
  /** Implements a bunch of tags that are useful for working with Werkz.
    *
    * @author <a href="mailto:jstrachan@apache.org">James Strachan</a>
    * @version $Revision: 1.6 $
    */
  public class WerkzTagLibrary extends TagLibrary {
  
      /** The Log to which logging calls will be made. */
      private Log log = LogFactory.getLog(WerkzTagLibrary.class);
      
      public WerkzTagLibrary() {
          registerTag("project", ProjectTag.class);
          registerTag("target", TargetTag.class);
          registerTag("preTarget", PreTargetTag.class);
          registerTag("postTarget", PostTargetTag.class);
          registerTag("callTarget", CallTargetTag.class);
      }
  }
  
  
  
  1.1                  jakarta-commons-sandbox/jelly/src/java/org/apache/commons/jelly/tags/werkz/CallTargetTag.java
  
  Index: CallTargetTag.java
  ===================================================================
  /*
   *
   * ====================================================================
   *
   * The Apache Software License, Version 1.1
   *
   * Copyright (c) 1999 The Apache Software Foundation.  All rights
   * reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   *
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in
   *    the documentation and/or other materials provided with the
   *    distribution.
   *
   * 3. The end-user documentation included with the redistribution, if
   *    any, must include the following acknowlegement:
   *       "This product includes software developed by the
   *        Apache Software Foundation (http://www.apache.org/)."
   *    Alternately, this acknowlegement may appear in the software itself,
   *    if and wherever such third-party acknowlegements normally appear.
   *
   * 4. The names "The Jakarta Project", "Tomcat", and "Apache Software
   *    Foundation" must not be used to endorse or promote products derived
   *    from this software without prior written permission. For written
   *    permission, please contact apache@apache.org.
   *
   * 5. Products derived from this software may not be called "Apache"
   *    nor may "Apache" appear in their names without prior written
   *    permission of the Apache Group.
   *
   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
   * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
   * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
   * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   *
   */
  
  package org.apache.commons.jelly.tags.werkz;
  
  import com.werken.werkz.Goal;
  
  import org.apache.commons.jelly.JellyException;
  import org.apache.commons.jelly.XMLOutput;
  
  import org.apache.commons.logging.Log;
  import org.apache.commons.logging.LogFactory;
  
  /** 
   * Calls a target to ensure that its built.
   *
   * @author <a href="mailto:jstrachan@apache.org">James Strachan</a>
   * @version $Revision: 1.8 $
   */
  public class CallTargetTag extends WerkzTagSupport {
  
      /** The Log to which logging calls will be made. */
      private Log log = LogFactory.getLog(CallTargetTag.class);
      
      /** the name of the target */
      private String name;
      
      public CallTargetTag() {
      }
  
      // Tag interface
      //------------------------------------------------------------------------- 
      
      /** 
       * Evaluate the body to register all the various goals and pre/post conditions
       * then run all the current targets
       */
      public void doTag(final XMLOutput output) throws Exception {
          log.debug( "Trying to invoke target: " + name );
          
          // attain the goal and throw up any exception to be caught by parent tags      
 
          getGoal(name).attain();
      }
  
      
      // Properties
      //------------------------------------------------------------------------- 
      
      /**
       * @return the name of the target
       */
      public String getName() {
          return name;
      }
  
      /**
       * Sets the name of the target
       */
      public void setName(String name) {
          this.name = name;
      }
  }
  
  
  
  1.40      +10 -0     jakarta-commons-sandbox/jelly/build.xml
  
  Index: build.xml
  ===================================================================
  RCS file: /home/cvs/jakarta-commons-sandbox/jelly/build.xml,v
  retrieving revision 1.39
  retrieving revision 1.40
  diff -u -r1.39 -r1.40
  --- build.xml	8 Jun 2002 16:45:10 -0000	1.39
  +++ build.xml	11 Jun 2002 21:41:11 -0000	1.40
  @@ -324,6 +324,16 @@
   	
      </target>
   
  +   <target name="demo.werkz" depends="compile" 
  +      description="Runs a Werkz sample">
  +    <java classname="org.apache.commons.jelly.Jelly" fork="yes">
  +      <classpath refid="test.classpath"/>
  +      <arg value="src/test/org/apache/commons/jelly/werkz/example.jelly"/> 
  +      <arg value="compile"/> 
  +      <arg value="test"/> 
  +    </java>
  +   </target>
  +
      <target name="demo.args" depends="compile" 
         description="Runs a demo of processing command line arguments">
         
  
  
  
  1.12      +15 -0     jakarta-commons-sandbox/jelly/project.xml
  
  Index: project.xml
  ===================================================================
  RCS file: /home/cvs/jakarta-commons-sandbox/jelly/project.xml,v
  retrieving revision 1.11
  retrieving revision 1.12
  diff -u -r1.11 -r1.12
  --- project.xml	7 Jun 2002 12:26:46 -0000	1.11
  +++ project.xml	11 Jun 2002 21:41:11 -0000	1.12
  @@ -125,8 +125,23 @@
         <version>2.0</version>
         <jar>jdbc2_0-stdext.jar</jar>
       </dependency>
  +    <dependency>
  +      <name>werkz</name>
  +      <type>required</type>
  +      <version>1.0-dev</version>
  +      <jar>werkz-1.0-dev.jar</jar>
  +    </dependency>
  +    
       <!-- runtime dependencies only required for testing and sample programs -->
   
  +    <!-- for werkz -->
  +    <dependency>
  +      <name>log4j</name>
  +      <type>required</type>
  +      <version>1.1.3</version>
  +      <jar>log4j-1.1.3.jar</jar>
  +    </dependency>
  +    
       <dependency>
         <name>hsqldb</name>
         <type>required</type>
  
  
  
  1.1                  jakarta-commons-sandbox/jelly/src/test/org/apache/commons/jelly/werkz/example.jelly
  
  Index: example.jelly
  ===================================================================
  <?xml version="1.0"?>
  
  <werkz:project xmlns:j="jelly:core" xmlns="jelly:ant" xmlns:werkz="jelly:werkz">
  
    <!-- the following could be in the mediator of Maven -->
    <werkz:target name="init">
      target: init
    	<echo message="Initializing the project!"/>
    </werkz:target>
    		
    <werkz:target name="compile">
      target: compile
    	<echo message="About to compile the project!"/>
    </werkz:target>
  
    <werkz:target name="test">
    	target: test
    	<echo message="About to run the tests!"/>
    </werkz:target>
  
  
   <!-- define some callbacks in the projects build.jelly -->
   <werkz:preTarget name="compile">
   	<echo message="I'm a callback: doing something before I compile"/> 	  		
   </werkz:preTarget>
  
  
    <!-- call all the targets made on the command line -->	
    <j:forEach var="arg" items="${args}" begin="1">
    	<werkz:callTarget name="${arg}"/>
    </j:forEach>
    	
  </werkz:project>
  
  
  
  
  
  
  1.10      +1 -0      jakarta-commons-sandbox/jelly/src/java/org/apache/commons/jelly/jelly.properties
  
  Index: jelly.properties
  ===================================================================
  RCS file: /home/cvs/jakarta-commons-sandbox/jelly/src/java/org/apache/commons/jelly/jelly.properties,v
  retrieving revision 1.9
  retrieving revision 1.10
  diff -u -r1.9 -r1.10
  --- jelly.properties	30 May 2002 08:11:55 -0000	1.9
  +++ jelly.properties	11 Jun 2002 21:41:11 -0000	1.10
  @@ -4,6 +4,7 @@
   xml         = org.apache.commons.jelly.tags.xml.XMLTagLibrary
   sql         = org.apache.commons.jelly.tags.sql.SqlTagLibrary
   jsl			= org.apache.commons.jelly.tags.jsl.JSLTagLibrary
  +werkz		= org.apache.commons.jelly.tags.werkz.WerkzTagLibrary
   
   # optional taglibs
   ojb			= org.apache.commons.jelly.tags.ojb.OjbTagLibrary
  
  
  
  1.9       +12 -6     jakarta-commons-sandbox/jelly/src/java/org/apache/commons/jelly/tags/core/ExprTag.java
  
  Index: ExprTag.java
  ===================================================================
  RCS file: /home/cvs/jakarta-commons-sandbox/jelly/src/java/org/apache/commons/jelly/tags/core/ExprTag.java,v
  retrieving revision 1.8
  retrieving revision 1.9
  diff -u -r1.8 -r1.9
  --- ExprTag.java	17 May 2002 15:18:08 -0000	1.8
  +++ ExprTag.java	11 Jun 2002 21:41:11 -0000	1.9
  @@ -72,6 +72,7 @@
   
   /** A tag which evaluates an expression
     *
  +  * @tag out
     * @author <a href="mailto:jstrachan@apache.org">James Strachan</a>
     * @version $Revision$
     */
  @@ -99,7 +100,12 @@
   
       // Properties
       //-------------------------------------------------------------------------       
        
  -    /** Sets the XPath expression to evaluate. */
  +    
  +    /** 
  +     * Sets the Jexl expression to evaluate. 
  +     * 
  +     * @required true
  +     */
       public void setValue(Expression value) {
           this.value = value;
       }
  
  
  

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