#set( $symbol_pound = '#' )
#set( $symbol_dollar = '$' )
#set( $symbol_escape = '\' )
/**
* (c) Copyright 2013 WibiData, Inc.
*
* See the NOTICE file distributed with this work for additional
* information regarding copyright ownership.
*
* Licensed 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 ${package}.produce;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import org.apache.avro.Schema;
import org.apache.hadoop.conf.Configuration;
import org.kiji.hadoop.configurator.HadoopConf;
import org.kiji.hadoop.configurator.HadoopConfigurator;
import org.kiji.mapreduce.produce.KijiProducer;
import org.kiji.mapreduce.produce.ProducerContext;
import org.kiji.schema.DecodedCell;
import org.kiji.schema.KijiColumnName;
import org.kiji.schema.KijiDataRequest;
import org.kiji.schema.KijiDataRequestBuilder;
import org.kiji.schema.KijiRowData;
import org.kiji.schema.NoSuchColumnException;
/**
* This producer copies data from the column "family:qualifier" to the column
* "family:outputqualifier" without modification, assuming both are encoded as bytes.
*/
public class ExampleProducer extends KijiProducer {
private KijiColumnName mInputColumn = new KijiColumnName("family:qualifier");
private KijiColumnName mOutputColumn = new KijiColumnName("family:outputqualifier");
private Schema schema = Schema.create(Schema.Type.BYTES);
/** {@inheritDoc} */
@Override
public KijiDataRequest getDataRequest() {
KijiDataRequestBuilder builder = KijiDataRequest.builder();
builder.newColumnsDef().withMaxVersions(Integer.MAX_VALUE)
.add(mInputColumn.getFamily(), mInputColumn.getQualifier());
return builder.build();
}
/** {@inheritDoc} */
@Override
public String getOutputColumn() {
return mOutputColumn.toString();
}
/** {@inheritDoc} */
@Override
public void produce(KijiRowData input, ProducerContext context)
throws IOException {
for (long timestamp : input.getTimestamps(
mInputColumn.getFamily(),
mInputColumn.getQualifier())) {
Object data = input.getValue(
mInputColumn.getFamily(), mInputColumn.getQualifier(), timestamp);
context.put(timestamp, new DecodedCell<Object>(schema, data));
}
}
}