org.apache.phoenix.hive.mapreduce.PhoenixOutputFormat Maven / Gradle / Ivy
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* 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
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*/
package org.apache.phoenix.hive.mapreduce;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.hive.ql.io.AcidOutputFormat;
import org.apache.hadoop.hive.ql.io.RecordUpdater;
import org.apache.hadoop.io.NullWritable;
import org.apache.hadoop.io.Writable;
import org.apache.hadoop.mapred.JobConf;
import org.apache.hadoop.mapred.OutputFormat;
import org.apache.hadoop.mapred.RecordWriter;
import org.apache.hadoop.mapreduce.lib.db.DBWritable;
import org.apache.hadoop.util.Progressable;
import org.apache.phoenix.hive.util.PhoenixStorageHandlerUtil;
import java.io.IOException;
import java.sql.SQLException;
import java.util.Properties;
/**
* Custom OutputFormat to feed into Hive. Describes the output-specification for a Map-Reduce job.
*/
public class PhoenixOutputFormat implements OutputFormat,
AcidOutputFormat {
private static final Log LOG = LogFactory.getLog(PhoenixOutputFormat.class);
public PhoenixOutputFormat() {
if (LOG.isDebugEnabled()) {
LOG.debug("PhoenixOutputFormat created");
}
}
@Override
public RecordWriter getRecordWriter(FileSystem ignored, JobConf jobConf,
String name, Progressable progress)
throws IOException {
return createRecordWriter(jobConf, new Properties());
}
@Override
public void checkOutputSpecs(FileSystem ignored, JobConf job) throws IOException {
}
@Override
public org.apache.hadoop.hive.ql.exec.FileSinkOperator.RecordWriter getHiveRecordWriter
(JobConf jobConf, Path finalOutPath, Class valueClass, boolean
isCompressed, Properties tableProperties, Progressable progress) throws
IOException {
if (LOG.isDebugEnabled()) {
LOG.debug("Get RecordWriter for finalOutPath : " + finalOutPath + ", valueClass" +
" : " +
valueClass
.getName() + ", isCompressed : " + isCompressed + ", tableProperties " +
": " + tableProperties + ", progress : " + progress);
}
return createRecordWriter(jobConf, new Properties());
}
@Override
public RecordUpdater getRecordUpdater(Path path, org.apache.hadoop.hive.ql.io
.AcidOutputFormat.Options options) throws IOException {
if (LOG.isDebugEnabled()) {
LOG.debug("Get RecordWriter for path : " + path + ", options : " +
PhoenixStorageHandlerUtil
.getOptionsValue(options));
}
return new PhoenixRecordWriter(path, options);
}
@Override
public org.apache.hadoop.hive.ql.exec.FileSinkOperator.RecordWriter getRawRecordWriter(Path path,
org.apache.hadoop.hive.ql.io.AcidOutputFormat.Options options) throws IOException {
if (LOG.isDebugEnabled()) {
LOG.debug("Get RawRecordWriter for path : " + path + ", options : " +
PhoenixStorageHandlerUtil.getOptionsValue(options));
}
return new PhoenixRecordWriter(path, options);
}
private PhoenixRecordWriter createRecordWriter(Configuration config, Properties properties) {
try {
return new PhoenixRecordWriter(config, properties);
} catch (SQLException e) {
LOG.error("Error during PhoenixRecordWriter instantiation :" + e.getMessage());
throw new RuntimeException(e);
}
}
}