org.apache.tika.parser.xml.XMLParser Maven / Gradle / Ivy
/*
* 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.tika.parser.xml;
import java.io.IOException;
import java.io.InputStream;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashSet;
import java.util.Set;
import org.apache.commons.io.input.CloseShieldInputStream;
import org.apache.tika.exception.TikaException;
import org.apache.tika.metadata.Metadata;
import org.apache.tika.mime.MediaType;
import org.apache.tika.parser.AbstractParser;
import org.apache.tika.parser.ParseContext;
import org.apache.tika.sax.EmbeddedContentHandler;
import org.apache.tika.sax.OfflineContentHandler;
import org.apache.tika.sax.TaggedContentHandler;
import org.apache.tika.sax.TextContentHandler;
import org.apache.tika.sax.XHTMLContentHandler;
import org.xml.sax.ContentHandler;
import org.xml.sax.SAXException;
/**
* XML parser.
*/
public class XMLParser extends AbstractParser {
/** Serial version UID */
private static final long serialVersionUID = -6028836725280212837L;
private static final Set SUPPORTED_TYPES =
Collections.unmodifiableSet(new HashSet(Arrays.asList(
MediaType.application("xml"),
MediaType.image("svg+xml"))));
public Set getSupportedTypes(ParseContext context) {
return SUPPORTED_TYPES;
}
public void parse(
InputStream stream, ContentHandler handler,
Metadata metadata, ParseContext context)
throws IOException, SAXException, TikaException {
if (metadata.get(Metadata.CONTENT_TYPE) == null) {
metadata.set(Metadata.CONTENT_TYPE, "application/xml");
}
final XHTMLContentHandler xhtml =
new XHTMLContentHandler(handler, metadata);
xhtml.startDocument();
xhtml.startElement("p");
TaggedContentHandler tagged = new TaggedContentHandler(handler);
try {
context.getSAXParser().parse(
new CloseShieldInputStream(stream),
new OfflineContentHandler(new EmbeddedContentHandler(
getContentHandler(tagged, metadata, context))));
} catch (SAXException e) {
tagged.throwIfCauseOf(e);
throw new TikaException("XML parse error", e);
} finally {
xhtml.endElement("p");
xhtml.endDocument();
}
}
protected ContentHandler getContentHandler(
ContentHandler handler, Metadata metadata, ParseContext context) {
return new TextContentHandler(handler, true);
}
}