/*
* 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.commons.html.impl;
import java.io.IOException;
import java.io.InputStream;
import org.apache.felix.scr.annotations.Component;
import org.apache.felix.scr.annotations.Service;
import org.apache.sling.commons.html.HtmlParser;
import org.ccil.cowan.tagsoup.Parser;
import org.w3c.dom.Document;
import org.xml.sax.ContentHandler;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.ext.LexicalHandler;
@Component
@Service(value=HtmlParser.class)
public class HtmlParserImpl implements HtmlParser {
/**
* @see org.apache.sling.commons.html.HtmlParser#parse(java.io.InputStream, java.lang.String, org.xml.sax.ContentHandler)
*/
public void parse(InputStream stream, String encoding, ContentHandler ch)
throws SAXException {
final Parser parser = new Parser();
if ( ch instanceof LexicalHandler ) {
parser.setProperty("http://xml.org/sax/properties/lexical-handler", ch);
}
parser.setContentHandler(ch);
final InputSource source = new InputSource(stream);
source.setEncoding(encoding);
try {
parser.parse(source);
} catch (IOException ioe) {
throw new SAXException(ioe);
}
}
/**
* @see org.apache.sling.commons.html.HtmlParser#parse(java.lang.String, java.io.InputStream, java.lang.String)
*/
public Document parse(String systemId, InputStream stream, String encoding) throws IOException {
final Parser parser = new Parser();
final DOMBuilder builder = new DOMBuilder();
final InputSource source = new InputSource(stream);
source.setEncoding(encoding);
source.setSystemId(systemId);
try {
parser.setProperty("http://xml.org/sax/properties/lexical-handler", builder);
parser.setContentHandler(builder);
parser.parse(source);
} catch (SAXException se) {
if ( se.getCause() instanceof IOException ) {
throw (IOException) se.getCause();
}
throw (IOException) new IOException("Unable to parse xml.").initCause(se);
}
return builder.getDocument();
}
}