/*
* 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.sling.rewriter.impl.components;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.PrintWriter;
import java.io.StringWriter;
import org.apache.felix.scr.annotations.Component;
import org.apache.felix.scr.annotations.Property;
import org.apache.felix.scr.annotations.Reference;
import org.apache.felix.scr.annotations.Service;
import org.apache.sling.commons.html.HtmlParser;
import org.apache.sling.rewriter.Generator;
import org.apache.sling.rewriter.GeneratorFactory;
import org.apache.sling.rewriter.ProcessingComponentConfiguration;
import org.apache.sling.rewriter.ProcessingContext;
import org.xml.sax.ContentHandler;
import org.xml.sax.SAXException;
/**
* On the fly HTML parser which can be used as the
* starting point for html pipelines.
*
*/
@Component
@Service(value=GeneratorFactory.class)
@Property(name="pipeline.type",value="html-generator")
public class HtmlGeneratorFactory implements GeneratorFactory {
@Reference
private HtmlParser htmlParser;
/**
* @see org.apache.sling.rewriter.GeneratorFactory#createGenerator()
*/
public Generator createGenerator() {
return new HtmlGenerator(htmlParser);
}
public static final class HtmlGenerator implements Generator {
private final StringWriter writer;
private final HtmlParser htmlParser;
private ContentHandler contentHandler;
public HtmlGenerator(final HtmlParser parser) {
this.htmlParser = parser;
this.writer = new StringWriter();
}
/**
* @see org.apache.sling.rewriter.Generator#finished()
*/
public void finished() throws IOException, SAXException {
this.htmlParser.parse(new ByteArrayInputStream(this.writer.toString().getBytes("UTF-8")), "UTF-8", this.contentHandler);
}
/**
* @see org.apache.sling.rewriter.Generator#getWriter()
*/
public PrintWriter getWriter() {
return new PrintWriter(writer);
}
public void init(ProcessingContext context,
ProcessingComponentConfiguration config)
throws IOException {
// nothing to do
}
/**
* @see org.apache.sling.rewriter.Generator#setContentHandler(org.xml.sax.ContentHandler)
*/
public void setContentHandler(ContentHandler handler) {
this.contentHandler = handler;
}
/**
* @see org.apache.sling.rewriter.Generator#dispose()
*/
public void dispose() {
// nothing to do
}
}
}