/*
* 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.server;
import au.com.bytecode.opencsv.CSVWriter;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.tika.metadata.Metadata;
import org.apache.tika.parser.AutoDetectParser;
import org.xml.sax.helpers.DefaultHandler;
import javax.ws.rs.PUT;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.HttpHeaders;
import javax.ws.rs.core.StreamingOutput;
import javax.ws.rs.core.UriInfo;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.util.ArrayList;
import java.util.Arrays;
@Path("/meta{id:(/.*)?}")
public class MetadataResource {
private static final Log logger = LogFactory.getLog(MetadataResource.class);
@PUT
@Produces("text/csv")
public StreamingOutput getMetadata(InputStream is, @Context HttpHeaders httpHeaders, @Context UriInfo info) throws Exception {
final Metadata metadata = new Metadata();
AutoDetectParser parser = TikaResource.createParser();
TikaResource.fillMetadata(parser, metadata, httpHeaders);
TikaResource.logRequest(logger, info, metadata);
parser.parse(is, new DefaultHandler(), metadata);
return new StreamingOutput() {
public void write(OutputStream outputStream) throws IOException, WebApplicationException {
CSVWriter writer = new CSVWriter(new OutputStreamWriter(outputStream));
for (String name : metadata.names()) {
String[] values = metadata.getValues(name);
ArrayList<String> list = new ArrayList<String>(values.length+1);
list.add(name);
list.addAll(Arrays.asList(values));
writer.writeNext(list.toArray(values));
}
writer.close();
}
};
}
}