/*
* 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.envi;
import java.io.IOException;
import java.io.InputStream;
import java.util.Collections;
import java.util.Set;
import java.nio.charset.Charset;
import org.apache.tika.detect.AutoDetectReader;
import org.apache.tika.io.CloseShieldInputStream;
import org.apache.tika.exception.TikaException;
import org.apache.tika.metadata.Metadata;
import org.apache.tika.mime.MediaType;
import org.apache.tika.parser.ParseContext;
import org.apache.tika.parser.AbstractParser;
import org.apache.tika.sax.XHTMLContentHandler;
import org.xml.sax.ContentHandler;
import org.xml.sax.SAXException;
public class EnviHeaderParser extends AbstractParser {
private static final long serialVersionUID = -1479368523072408091L;
public static final String ENVI_MIME_TYPE = "application/envi.hdr";
private static final Set<MediaType> SUPPORTED_TYPES = Collections
.singleton(MediaType.application("envi.hdr"));
public Set<MediaType> getSupportedTypes(ParseContext context) {
return SUPPORTED_TYPES;
}
public void parse(InputStream stream, ContentHandler handler,
Metadata metadata, ParseContext context) throws IOException,
SAXException, TikaException {
// Only outputting the MIME type as metadata
metadata.set(Metadata.CONTENT_TYPE, ENVI_MIME_TYPE);
// The following code was taken from the TXTParser
// Automatically detect the character encoding
AutoDetectReader reader = new AutoDetectReader(
new CloseShieldInputStream(stream), metadata);
try {
Charset charset = reader.getCharset();
MediaType type = new MediaType(MediaType.TEXT_PLAIN, charset);
// deprecated, see TIKA-431
metadata.set(Metadata.CONTENT_ENCODING, charset.name());
XHTMLContentHandler xhtml = new XHTMLContentHandler(handler,
metadata);
xhtml.startDocument();
// text contents of the xhtml
String line;
while ((line = reader.readLine()) != null) {
xhtml.startElement("p");
xhtml.characters(line);
xhtml.endElement("p");
}
xhtml.endDocument();
} finally {
reader.close();
}
}
}