/*
* 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.nifi.processors.hadoop;
import org.apache.hadoop.io.SequenceFile.Writer;
import org.apache.hadoop.io.Text;
import org.apache.nifi.flowfile.FlowFile;
import org.apache.nifi.processors.hadoop.util.InputStreamWritable;
import org.apache.nifi.stream.io.BufferedInputStream;
import org.slf4j.LoggerFactory;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;
public class ZipUnpackerSequenceFileWriter extends SequenceFileWriterImpl {
static {
logger = LoggerFactory.getLogger(ZipUnpackerSequenceFileWriter.class);
}
@Override
protected void processInputStream(InputStream stream, final FlowFile flowFile, final Writer writer) throws IOException {
try (final ZipInputStream zipIn = new ZipInputStream(new BufferedInputStream(stream))) {
ZipEntry zipEntry;
while ((zipEntry = zipIn.getNextEntry()) != null) {
if (zipEntry.isDirectory()) {
continue;
}
final File file = new File(zipEntry.getName());
final String key = file.getName();
long fileSize = zipEntry.getSize();
final InputStreamWritable inStreamWritable = new InputStreamWritable(zipIn, (int) fileSize);
writer.append(new Text(key), inStreamWritable);
logger.debug("Appending FlowFile {} to Sequence File", new Object[]{key});
}
}
}
}