| /* | ||
| * Copyright 2001-2004 (C) MetaStuff, Ltd. All Rights Reserved. | ||
| * | ||
| * This software is open source. | ||
| * See the bottom of this file for the licence. | ||
| * | ||
| * $Id: SAXModifyElementHandler.java,v 1.1 2004/08/02 18:44:07 maartenc Exp $ | ||
| */ | ||
| package org.dom4j.io; | ||
| import org.dom4j.Element; | ||
| import org.dom4j.ElementHandler; | ||
| import org.dom4j.ElementPath; | ||
| /** | ||
| * This {@link org.dom4j.ElementHandler} is used to trigger {@link ElementModifier) objects | ||
| * in order to modify (parts of) the Document on the fly.<br> | ||
| * When an element is completely parsed, | ||
| * a copy is handed to the associated (if any) {@link ElementModifier) that on his turn returns | ||
| * the modified element that has to come in the tree. | ||
| * | ||
| * @author Wonne Keysers (Realsoftware.be) | ||
| */ | ||
| class SAXModifyElementHandler implements ElementHandler { | ||
| private ElementModifier elemModifier; | ||
| private Element modifiedElement; | ||
| 0x | public SAXModifyElementHandler(ElementModifier elemModifier) { | |
| 0x | this.elemModifier = elemModifier; | |
| 0x | } | |
| public void onStart(ElementPath elementPath) { | ||
| 0x | this.modifiedElement = elementPath.getCurrent(); | |
| 0x | } | |
| public void onEnd(ElementPath elementPath) { | ||
| try { | ||
| 0x | Element originalElement = elementPath.getCurrent(); | |
| 0x | Element currentParent = originalElement.getParent(); | |
| 0/2 0x | if( currentParent != null){ | |
| //Clone sets parent + document to null | ||
| 0x | Element clonedElem = (Element) originalElement.clone(); | |
| //Ask for modified element | ||
| 0x | modifiedElement = elemModifier.modifyElement(clonedElem); | |
| 0/2 0x | if( modifiedElement != null ){ | |
| //Restore parent + document | ||
| 0x | modifiedElement.setParent(originalElement.getParent()); | |
| 0x | modifiedElement.setDocument(originalElement.getDocument()); | |
| //Replace old with new element in parent | ||
| 0x | int contentIndex = currentParent.indexOf(originalElement); | |
| 0x | currentParent.content().set(contentIndex, modifiedElement); | |
| } | ||
| //Remove the old element | ||
| 0x | originalElement.detach(); | |
| } | ||
| else{ | ||
| 0/2 0x | if( originalElement.isRootElement() ){ | |
| //Clone sets parent + document to null | ||
| 0x | Element clonedElem = (Element) originalElement.clone(); | |
| //Ask for modified element | ||
| 0x | modifiedElement = elemModifier.modifyElement(clonedElem); | |
| 0/2 0x | if( modifiedElement != null ){ | |
| //Restore parent + document | ||
| 0x | modifiedElement.setDocument(originalElement.getDocument()); | |
| //Replace old with new element in parent | ||
| 0x | originalElement.getDocument().setRootElement(modifiedElement); | |
| } | ||
| //Remove the old element | ||
| 0x | originalElement.detach(); | |
| } | ||
| } | ||
| //Put the new element on the ElementStack, it might get pruned by the PruningDispatchHandler | ||
| 0/2 0x | if( elementPath instanceof ElementStack ){ | |
| 0x | ElementStack elementStack = ((ElementStack)elementPath); | |
| 0x | elementStack.popElement(); | |
| 0x | elementStack.pushElement(modifiedElement); | |
| } | ||
| } | ||
| catch (Exception ex) { | ||
| 0x | throw new SAXModifyException(ex); | |
| 0x | } | |
| 0x | } | |
| /** | ||
| * @return Returns the modified Element. | ||
| */ | ||
| protected Element getModifiedElement() { | ||
| 0x | return modifiedElement; | |
| } | ||
| } | ||
| /* | ||
| * Redistribution and use of this software and associated documentation | ||
| * ("Software"), with or without modification, are permitted provided | ||
| * that the following conditions are met: | ||
| * | ||
| * 1. Redistributions of source code must retain copyright | ||
| * statements and notices. Redistributions must also contain a | ||
| * copy of this document. | ||
| * | ||
| * 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 name "DOM4J" must not be used to endorse or promote | ||
| * products derived from this Software without prior written | ||
| * permission of MetaStuff, Ltd. For written permission, | ||
| * please contact dom4j-info@metastuff.com. | ||
| * | ||
| * 4. Products derived from this Software may not be called "DOM4J" | ||
| * nor may "DOM4J" appear in their names without prior written | ||
| * permission of MetaStuff, Ltd. DOM4J is a registered | ||
| * trademark of MetaStuff, Ltd. | ||
| * | ||
| * 5. Due credit should be given to the DOM4J Project - | ||
| * http://www.dom4j.org | ||
| * | ||
| * THIS SOFTWARE IS PROVIDED BY METASTUFF, LTD. AND CONTRIBUTORS | ||
| * ``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 | ||
| * METASTUFF, LTD. 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. | ||
| * | ||
| * Copyright 2001-2004 (C) MetaStuff, Ltd. All Rights Reserved. | ||
| * | ||
| * $Id: SAXModifyElementHandler.java,v 1.1 2004/08/02 18:44:07 maartenc Exp $ | ||
| */ |