| /* |
| * The Apache Software License, Version 1.1 |
| * |
| * Copyright (c) 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", "Ant", 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.ant.antcore.modelparser; |
| import java.util.Iterator; |
| |
| import org.apache.ant.common.model.BuildElement; |
| import org.apache.ant.antcore.xml.ElementHandler; |
| import org.xml.sax.Attributes; |
| import org.xml.sax.SAXParseException; |
| |
| /** |
| * A BuildElementHandler parses the task elements of a build. Task elements |
| * include tasks themselves plus all their nested elements to any depth. |
| * |
| * @author <a href="mailto:conor@apache.org">Conor MacNeill</a> |
| * @created 9 January 2002 |
| */ |
| public class BuildElementHandler extends ElementHandler { |
| /** The task element being parsed by this handler. */ |
| private BuildElement buildElement; |
| |
| /** |
| * Get the task element being parsed by this handler. |
| * |
| * @return the BuildElement being parsed. |
| */ |
| public BuildElement getBuildElement() { |
| return buildElement; |
| } |
| |
| /** |
| * Create a task element handler to parse a task element |
| * |
| * @param elementName the name of the element - always target |
| */ |
| public void processElement(String elementName) { |
| buildElement |
| = new BuildElement(getLocation(), elementName); |
| |
| for (Iterator i = getAttributes(); i.hasNext(); ) { |
| String attributeName = (String)i.next(); |
| buildElement.addAttribute(attributeName, |
| getAttribute(attributeName)); |
| } |
| buildElement.setAspects(getAspects()); |
| } |
| |
| |
| /** |
| * Process a nested element of this task element. All nested elements of |
| * a buildElement are themselves buildElements. |
| * |
| * @param uri The Namespace URI. |
| * @param localName The local name (without prefix). |
| * @param qualifiedName The qualified name (with prefix) |
| * @param attributes The attributes attached to the element. |
| * @throws SAXParseException if there is a parsing problem. |
| */ |
| public void startElement(String uri, String localName, String qualifiedName, |
| Attributes attributes) |
| throws SAXParseException { |
| // everything within a task element is also a task element |
| BuildElementHandler nestedHandler |
| = new BuildElementHandler(); |
| nestedHandler.start(getParseContext(), getXMLReader(), |
| this, getLocator(), attributes, getElementSource(), qualifiedName); |
| buildElement.addNestedElement(nestedHandler.getBuildElement()); |
| } |
| |
| |
| /** |
| * This method is called when this element is finished being processed. |
| * This is a template method allowing subclasses to complete any |
| * necessary processing. |
| */ |
| protected void finish() { |
| String content = getContent(); |
| if (content != null && content.trim().length() != 0) { |
| buildElement.addText(getContent()); |
| } |
| } |
| |
| /** |
| * Validate that the given attribute and value are valid. |
| * |
| * @param attributeName The name of the attributes |
| * @param attributeValue The value of the attributes |
| */ |
| protected void validateAttribute(String attributeName, |
| String attributeValue) { |
| // do nothing - all attributes are OK by default. |
| } |
| } |
| |