/*
* 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.audio;
import java.io.IOException;
import java.io.InputStream;
import java.util.HashMap;
import javax.sound.midi.InvalidMidiDataException;
import javax.sound.midi.MidiSystem;
import javax.sound.midi.Sequence;
import org.apache.tika.exception.TikaException;
import org.apache.tika.metadata.Metadata;
import org.apache.tika.parser.Parser;
import org.apache.tika.sax.XHTMLContentHandler;
import org.xml.sax.ContentHandler;
import org.xml.sax.SAXException;
public class MidiParser implements Parser {
public void parse(InputStream stream, ContentHandler handler,
Metadata metadata) throws IOException, SAXException, TikaException {
parse(stream, metadata);
XHTMLContentHandler xhtml = new XHTMLContentHandler(handler, metadata);
xhtml.startDocument();
xhtml.endDocument();
}
private static HashMap<Float, String> divisionTypes = new HashMap<Float, String>();
static {
divisionTypes.put(Sequence.PPQ, "PRQ");
divisionTypes.put(Sequence.SMPTE_24, "SMPTE_24");
divisionTypes.put(Sequence.SMPTE_25, "SMPTE_25");
divisionTypes.put(Sequence.SMPTE_30, "SMPTE_30");
divisionTypes.put(Sequence.SMPTE_30DROP, "SMPTE_30DROP");
}
public void parse(InputStream stream, Metadata metadata)
throws IOException, TikaException {
String type = metadata.get(Metadata.CONTENT_TYPE);
if (type != null) {
try {
Sequence sequence = MidiSystem.getSequence(stream);
metadata.set("tracks", Integer
.toString(sequence.getTracks().length));
metadata.set("patches", Integer.toString(sequence
.getPatchList().length));
metadata.set("divisionType", divisionTypes.get(sequence
.getDivisionType()));
} catch (InvalidMidiDataException e) {
// cannot parse format
}
}
}
}