/*
* $Header: /home/cvs/jakarta-commons-sandbox/jelly/src/java/org/apache/commons/jelly/tags/jeez/JeezTagLibrary.java,v 1.4 2002/07/19 23:05:21 jstrachan Exp $
* $Revision: 1.4 $
* $Date: 2002/07/19 23:05:21 $
*
* ====================================================================
*
* 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: JeezTagLibrary.java,v 1.4 2002/07/19 23:05:21 jstrachan Exp $
*/
package org.apache.commons.jelly.tags.jeez;
import java.util.Iterator;
import java.util.List;
import java.util.Set;
import java.util.HashSet;
import org.apache.commons.jelly.JellyContext;
import org.apache.commons.jelly.JellyException;
import org.apache.commons.jelly.impl.TagScript;
import org.apache.commons.jelly.Script;
import org.apache.commons.jelly.TagLibrary;
import org.apache.commons.jelly.tags.ant.AntTagLibrary;
import org.apache.commons.jelly.tags.define.DynamicTagLibrary;
import org.apache.commons.jelly.tags.werkz.WerkzTagLibrary;
// import org.apache.commons.jelly.tags.core.CoreTagLibrary;
import org.apache.tools.ant.Project;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.xml.sax.Attributes;
/** Convenience taglib that puts jelly:core, jelly:werkz and jelly:ant
* into a single namespace.
*
* @author <a href="mailto:bob@eng.werken.com">bob mcwhirter</a>
* @version $Revision: 1.4 $
*/
public class JeezTagLibrary extends DynamicTagLibrary {
/** The Log to which logging calls will be made. */
private Log log = LogFactory.getLog(JeezTagLibrary.class);
/** jelly:core taglib. */
// private TagLibrary coreTagLib;
/** jelly:werkz taglib. */
private TagLibrary werkzTagLib;
/** jelly:ant taglib. */
private AntTagLibrary antTagLib;
private Set runtimeTasks;
private Project project;
/**
* Use a default ant Project
*/
public JeezTagLibrary() {
this( AntTagLibrary.createProject() );
}
/** Construct.
*
* @param antProject The ant Project.
*/
public JeezTagLibrary(Project antProject) {
this.project = antProject;
this.runtimeTasks = new HashSet();
// this.coreTagLib = new CoreTagLibrary();
this.antTagLib = new AntTagLibrary( antProject );
this.werkzTagLib = new WerkzTagLibrary();
// #### this is a bit of a hack.
// when we introduce the concept of TagFactory objects
// we could do a cleaner mechanism for this...
TagDefTag.tagLibrary = this;
registerTag( "target",
TargetTag.class );
registerTag( "tagdef",
TagDefTag.class );
}
public TagScript createTagScript(String name,
Attributes attrs) throws Exception
{
TagScript script = super.createTagScript( name, attrs );
if ( script == null ) {
// script = this.coreTagLib.createTagScript( name, attrs );
if ( script == null ) {
script = this.werkzTagLib.createTagScript( name, attrs );
if ( script == null ) {
if ( isRuntimeTask( name ) ) {
if ( ! project.getTaskDefinitions().containsKey( name ) ) {
script = this.antTagLib.createRuntimeTaskTagScript( name, attrs );
} else {
this.runtimeTasks.remove( name );
}
}
if ( script == null ) {
script = this.antTagLib.createTagScript( name, attrs );
}
if ( name.equals( "taskdef" ) ) {
addRuntimeTask( attrs.getValue( "name" ) );
}
}
}
}
return script;
}
protected void addRuntimeTask(String name) {
this.runtimeTasks.add( name );
}
protected boolean isRuntimeTask(String name) {
return this.runtimeTasks.contains( name );
}
}