/*
* 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
*
* 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.streams.s3;
import org.apache.streams.core.DatumStatus;
import org.apache.streams.core.StreamsDatum;
import org.apache.streams.util.ComponentUtils;
import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.BufferedReader;
import java.io.Closeable;
import java.io.InputStreamReader;
/**
* S3PersistReaderTask reads documents from s3 on behalf of
* @see org.apache.streams.s3.S3PersistReader
*/
public class S3PersistReaderTask implements Runnable {
private static final Logger LOGGER = LoggerFactory.getLogger(S3PersistReaderTask.class);
private S3PersistReader reader;
public S3PersistReaderTask(S3PersistReader reader) {
this.reader = reader;
}
@Override
public void run() {
for (String file : reader.getFiles()) {
// Create our buffered reader
S3ObjectInputStreamWrapper is = new S3ObjectInputStreamWrapper(reader.getAmazonS3Client().getObject(reader.getBucketName(), file));
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(is));
LOGGER.info("Reading: {} ", file);
String line;
try {
while ((line = bufferedReader.readLine()) != null) {
if (StringUtils.isNotEmpty(line) ) {
reader.countersCurrent.incrementAttempt();
StreamsDatum entry = reader.lineReaderUtil.processLine(line);
ComponentUtils.offerUntilSuccess(entry, reader.persistQueue);
reader.countersCurrent.incrementStatus(DatumStatus.SUCCESS);
}
}
} catch (Exception ex) {
ex.printStackTrace();
LOGGER.warn(ex.getMessage());
reader.countersCurrent.incrementStatus(DatumStatus.FAIL);
}
LOGGER.info("Completed: " + file);
try {
closeSafely(file, is);
} catch (Exception ex) {
LOGGER.error(ex.getMessage());
}
}
}
private static void closeSafely(String file, Closeable closeable) {
try {
closeable.close();
} catch (Exception ex) {
LOGGER.error("There was an issue closing file: {}", file);
}
}
}