| /* |
| * Copyright 1999-2004 The Apache Software Foundation. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.cocoon.transformation.helpers; |
| |
| import java.util.ArrayList; |
| import java.util.Map; |
| |
| import org.w3c.dom.NamedNodeMap; |
| import org.w3c.dom.Node; |
| import org.w3c.dom.NodeList; |
| |
| import org.xml.sax.Attributes; |
| import org.xml.sax.ContentHandler; |
| import org.xml.sax.SAXException; |
| import org.xml.sax.helpers.AttributesImpl; |
| |
| /** |
| * Consume elements start/end and characters events and reproduce them. |
| * |
| * WARNING: THIS CLASS DOES NOT WORK PROPERLY WITH NAMESPACES |
| * |
| * @deprecated The only user of this class (I18nTransformer) now uses ParamSaxBuffer |
| * @author <a href="mailto:mattam@netcourrier.com">Matthieu Sozeau</a> |
| * @version CVS $Id: MirrorRecorder.java,v 1.2 2004/03/05 13:02:42 bdelacretaz Exp $ |
| */ |
| public class MirrorRecorder |
| extends NOPRecorder |
| implements EventRecorder, Cloneable { |
| |
| private ArrayList events; |
| |
| // Used for indexing (parameters) |
| static class NullEvent implements EventRecorder { |
| private String s; |
| |
| public NullEvent(String s) { |
| this.s = s; |
| } |
| |
| public String name() { |
| return s; |
| } |
| |
| public void send(ContentHandler handler) |
| throws SAXException { |
| } |
| |
| public Object clone() { |
| return new NullEvent(s); |
| } |
| |
| public String toString() { |
| return "{" + s + "}"; |
| } |
| } |
| |
| static class StartEvent implements EventRecorder { |
| private String uri, name, raw; |
| private Attributes attr; |
| |
| public StartEvent(String namespace, String name, String raw, |
| Attributes attr) { |
| this.uri = namespace; |
| this.name = name; |
| this.raw = raw; |
| this.attr = new AttributesImpl(attr); |
| } |
| |
| public void send(ContentHandler handler) |
| throws SAXException { |
| handler.startElement(uri, name, raw, attr); |
| } |
| |
| public Object clone() { |
| return new StartEvent(uri, name, raw, attr); |
| } |
| |
| public String toString() { |
| StringBuffer str = new StringBuffer("<" + raw); |
| if (attr != null) { |
| for(int i = 0; i < attr.getLength(); ++i) { |
| str.append(" " + attr.getQName(i) + "=\"" + attr.getValue(i) + "\""); |
| } |
| } |
| |
| return str.append(">").toString(); |
| } |
| } |
| |
| static class EndEvent implements EventRecorder { |
| private String uri, name, raw; |
| |
| public EndEvent(String namespace, String name, String raw) { |
| this.uri = namespace; |
| this.name = name; |
| this.raw = raw; |
| } |
| |
| public Object clone() { |
| return new EndEvent(uri, name, raw); |
| } |
| |
| public void send(ContentHandler handler) |
| throws SAXException { |
| handler.endElement(uri, name, raw); |
| } |
| |
| public String toString() { |
| return "</" + raw + ">"; |
| } |
| } |
| |
| static class CharacterEvent implements EventRecorder { |
| private String ch; |
| |
| public CharacterEvent(char ary[], int start, int length) { |
| ch = new String(ary, start, length); |
| } |
| |
| public CharacterEvent(String ch) { |
| this.ch = ch; |
| } |
| |
| public Object clone() { |
| return new CharacterEvent(ch); |
| } |
| |
| public void send(ContentHandler handler) |
| throws SAXException { |
| handler.characters(ch.toCharArray(), 0, ch.length()); |
| } |
| |
| public String toString() { |
| return ch; |
| } |
| } |
| |
| |
| public MirrorRecorder() { |
| this.events = new ArrayList(); |
| } |
| |
| public MirrorRecorder(Node n) { |
| this.events = new ArrayList(); |
| |
| if(n != null) { |
| NodeList childs = n.getChildNodes(); |
| for(int i = 0; i < childs.getLength(); ++i) { |
| try { |
| nodeToEvents(childs.item(i)); |
| } catch (SAXException e) { |
| // FIXME: what to do? |
| } |
| } |
| } |
| } |
| |
| private void nodeToEvents(Node n) throws SAXException { |
| switch(n.getNodeType()) { |
| case Node.ELEMENT_NODE: |
| Attributes attrs; |
| if(n.getAttributes() instanceof Attributes) { |
| attrs = (Attributes) n.getAttributes(); |
| } else { |
| NamedNodeMap map = n.getAttributes(); |
| attrs = new AttributesImpl(); |
| |
| for(int i = 0; i < map.getLength(); ++i) { |
| Node node = map.item(i); |
| final String ns = node.getNamespaceURI() == null? "" : node.getNamespaceURI(); |
| final String ln = node.getLocalName() == null? node.getNodeName() : node.getLocalName(); |
| ((AttributesImpl) attrs).addAttribute(ns, |
| ln, |
| node.getNodeName(), |
| "CDATA", |
| node.getNodeValue()); |
| } |
| } |
| |
| final String ns = n.getNamespaceURI() == null? "" : n.getNamespaceURI(); |
| final String ln = n.getLocalName() == null? n.getNodeName() : n.getLocalName(); |
| startElement(ns, ln, n.getNodeName(), attrs); |
| if (n.hasChildNodes()) { |
| NodeList childs = n.getChildNodes(); |
| for(int i = 0; i < childs.getLength(); ++i) { |
| nodeToEvents(childs.item(i)); |
| } |
| } |
| |
| endElement(ns, ln, n.getNodeName()); |
| break; |
| case Node.CDATA_SECTION_NODE: |
| case Node.TEXT_NODE: |
| characters(n.getNodeValue()); |
| break; |
| } |
| } |
| |
| public MirrorRecorder(MirrorRecorder n) { |
| this.events = new ArrayList(); |
| for(int i = 0; i < n.events.size(); ++i) { |
| EventRecorder e = (EventRecorder) n.events.get(i); |
| this.events.add(e.clone()); |
| } |
| } |
| |
| public Object clone() { |
| return new MirrorRecorder(this); |
| } |
| |
| public void startElement(String namespace, String name, String raw, |
| Attributes attr) |
| throws SAXException { |
| events.add(new StartEvent(namespace, name, raw, attr)); |
| } |
| |
| public void endElement(String namespace, String name, String raw) |
| throws SAXException { |
| events.add(new EndEvent(namespace, name, raw)); |
| } |
| |
| public void characters(char ary[], int start, int length) |
| throws SAXException { |
| characters(new String(ary, start, length)); |
| } |
| |
| public void characters(String tmp) throws SAXException { |
| int i = 0, j = 0; |
| |
| while(tmp.length() > 0) { |
| i = tmp.indexOf('{', i); |
| if(i == -1) { |
| events.add(new CharacterEvent(tmp)); |
| return; |
| } else { |
| if(i >= 0) { |
| events.add(new CharacterEvent(tmp.substring(0, i))); |
| } |
| |
| j = tmp.indexOf('}', i); |
| if(j != -1) { |
| events.add(new NullEvent(tmp.substring(i + 1, j))); |
| tmp = tmp.substring(j + 1, tmp.length()); |
| i = 0; |
| } |
| } |
| } |
| } |
| |
| public void send(ContentHandler handler) throws SAXException { |
| for(int i = 0; i < events.size(); ++i) { |
| ((EventRecorder) (events.get(i))).send(handler); |
| } |
| } |
| |
| public void send(ContentHandler handler, Map params) throws SAXException |
| { |
| EventRecorder param; |
| |
| for(int i = 0; i < events.size(); ++i) { |
| if(events.get(i) instanceof NullEvent) { |
| param = (EventRecorder) params.get(((NullEvent) events.get(i)).name()); |
| if(param != null) |
| param.send(handler); |
| } else { |
| ((EventRecorder) (events.get(i))).send(handler); |
| } |
| } |
| } |
| |
| public String text() { |
| StringBuffer s = new StringBuffer(); |
| |
| for(int i = 0; i < events.size(); ++i) { |
| s.append(events.get(i).toString()); |
| } |
| return(s.toString()); |
| } |
| |
| public String toString() { |
| StringBuffer s = new StringBuffer("MirrorRecorder: "); |
| s.append(String.valueOf(events.size()) + " event(s)"); |
| s.append("\ntext: "); |
| for(int i = 0; i < events.size(); ++i) { |
| if(events.get(i) instanceof CharacterEvent) { |
| s.append(events.get(i).toString()); |
| } |
| } |
| |
| return s.toString(); |
| } |
| |
| public void recycle() { |
| events.clear(); |
| } |
| |
| public boolean empty() { |
| return events.size() == 0; |
| } |
| } |