/apache-log4j-1.2.17/contribs/CekiGulcu/Transform.java
Java | 219 lines | 140 code | 46 blank | 33 comment | 5 complexity | 33c5db97f0d38b0fcb54ee2add5329a4 MD5 | raw file
Possible License(s): Apache-2.0
- /*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You 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.log4j.xml;
- import org.apache.log4j.Category;
- import org.apache.log4j.Layout;
- import org.apache.log4j.PropertyConfigurator;
- import org.apache.log4j.spi.LoggingEvent;
- import org.apache.log4j.helpers.OptionConverter;
- import org.apache.log4j.helpers.DateLayout;
- import org.xml.sax.ContentHandler;
- import org.xml.sax.Locator;
- import org.xml.sax.Attributes;
- import org.xml.sax.XMLReader;
- import org.xml.sax.ext.LexicalHandler;
- import org.xml.sax.helpers.XMLReaderFactory;
- import org.xml.sax.SAXException;
- import org.apache.xerces.parsers.SAXParser;
- import org.apache.trax.Processor;
- import org.apache.trax.TemplatesBuilder;
- import org.apache.trax.Templates;
- import org.apache.trax.Transformer;
- import org.apache.trax.Result;
- import org.apache.trax.ProcessorException;
- import org.apache.trax.ProcessorFactoryException;
- import org.apache.trax.TransformException;
- import org.apache.serialize.SerializerFactory;
- import org.apache.serialize.Serializer;
- import org.apache.serialize.OutputFormat;
- import org.xml.sax.helpers.AttributesImpl;
- import java.io.FileOutputStream;
- import java.io.IOException;
- public class Transform {
- public static void main(String[] args) throws Exception {
- PropertyConfigurator.disableAll();
- PropertyConfigurator.configure("x.lcf");
- // I. Instantiate a stylesheet processor.
- Processor processor = Processor.newInstance("xslt");
- // II. Process the stylesheet. producing a Templates object.
- // Get the XMLReader.
- XMLReader reader = XMLReaderFactory.createXMLReader();
- // Set the ContentHandler.
- TemplatesBuilder templatesBuilder = processor.getTemplatesBuilder();
- reader.setContentHandler(templatesBuilder);
- // Set the ContentHandler to also function as a LexicalHandler, which
- // includes "lexical" (e.g., comments and CDATA) events. The Xalan
- // TemplatesBuilder -- org.apache.xalan.processor.StylesheetHandler -- is
- // also a LexicalHandler).
- if(templatesBuilder instanceof LexicalHandler) {
- reader.setProperty("http://xml.org/sax/properties/lexical-handler",
- templatesBuilder);
- }
- // Parse the stylesheet.
- reader.parse(args[0]);
- //Get the Templates object from the ContentHandler.
- Templates templates = templatesBuilder.getTemplates();
- // III. Use the Templates object to instantiate a Transformer.
- Transformer transformer = templates.newTransformer();
- // IV. Perform the transformation.
- // Set up the ContentHandler for the output.
- FileOutputStream fos = new FileOutputStream(args[2]);
- Result result = new Result(fos);
- Serializer serializer = SerializerFactory.getSerializer("xml");
- serializer.setOutputStream(fos);
- transformer.setContentHandler(serializer.asContentHandler());
- // Set up the ContentHandler for the input.
- org.xml.sax.ContentHandler chandler = transformer.getInputContentHandler();
- DC dc = new DC(chandler);
- reader.setContentHandler(dc);
- if(chandler instanceof LexicalHandler) {
- reader.setProperty("http://xml.org/sax/properties/lexical-handler",
- chandler);
- } else {
- reader.setProperty("http://xml.org/sax/properties/lexical-handler",
- null);
- }
- // Parse the XML input document. The input ContentHandler and
- // output ContentHandler work in separate threads to optimize
- // performance.
- reader.parse(args[1]);
- }
- }
- class DC implements ContentHandler {
- static Category cat = Category.getInstance("DC");
- ContentHandler chandler;
- DC(ContentHandler chandler) {
- this.chandler = chandler;
- }
- public
- void characters(char[] ch, int start, int length)
- throws org.xml.sax.SAXException {
- cat.debug("characters: ["+new String(ch, start, length)+ "] called");
- chandler.characters(ch, start, length);
- }
- public
- void endDocument() throws org.xml.sax.SAXException {
- cat.debug("endDocument called.");
- chandler.endDocument();
- }
- public
- void endElement(String namespaceURI, String localName, String qName)
- throws org.xml.sax.SAXException {
- cat.debug("endElement("+namespaceURI+", "+localName+", "+qName+") called");
- chandler.endElement(namespaceURI, localName, qName);
- }
-
- public
- void endPrefixMapping(String prefix) throws org.xml.sax.SAXException {
- cat.debug("endPrefixMapping("+prefix+") called");
- chandler.endPrefixMapping(prefix);
- }
- public
- void ignorableWhitespace(char[] ch, int start, int length)
- throws org.xml.sax.SAXException {
- cat.debug("ignorableWhitespace called");
- chandler.ignorableWhitespace(ch, start, length);
- }
-
- public
- void processingInstruction(java.lang.String target, java.lang.String data)
- throws org.xml.sax.SAXException {
- cat.debug("processingInstruction called");
- chandler.processingInstruction(target, data);
- }
- public
- void setDocumentLocator(Locator locator) {
- cat.debug("setDocumentLocator called");
- chandler.setDocumentLocator(locator);
- }
- public
- void skippedEntity(String name) throws org.xml.sax.SAXException {
- cat.debug("skippedEntity("+name+") called");
- chandler.skippedEntity(name);
- }
-
- public
- void startDocument() throws org.xml.sax.SAXException {
- cat.debug("startDocument called");
- chandler.startDocument();
- }
-
- public
- void startElement(String namespaceURI, String localName, String qName,
- Attributes atts) throws org.xml.sax.SAXException {
- cat.debug("startElement("+namespaceURI+", "+localName+", "+qName+")called");
- if("log4j:event".equals(qName)) {
- cat.debug("-------------");
- if(atts instanceof org.xml.sax.helpers.AttributesImpl) {
- AttributesImpl ai = (AttributesImpl) atts;
- int i = atts.getIndex("timestamp");
- ai.setValue(i, "hello");
- }
- String ts = atts.getValue("timestamp");
- cat.debug("New timestamp is " + ts);
- }
- chandler.startElement(namespaceURI, localName, qName, atts);
- }
- public
- void startPrefixMapping(String prefix, String uri)
- throws org.xml.sax.SAXException {
- cat.debug("startPrefixMapping("+prefix+", "+uri+") called");
- chandler.startPrefixMapping(prefix, uri);
- }
-
-
- }