/*
* 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.
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package org.apache.accumulo.examples.helloworld;
import org.apache.accumulo.core.client.mapreduce.AccumuloOutputFormat;
import org.apache.accumulo.core.data.Mutation;
import org.apache.accumulo.core.data.Value;
import org.apache.accumulo.core.util.CachedConfiguration;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.conf.Configured;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapreduce.Job;
import org.apache.hadoop.mapreduce.RecordWriter;
import org.apache.hadoop.mapreduce.TaskAttemptContext;
import org.apache.hadoop.mapreduce.TaskAttemptID;
import org.apache.hadoop.util.Tool;
import org.apache.hadoop.util.ToolRunner;
public class InsertWithOutputFormat extends Configured implements Tool {
// this is a tool because when you run a mapreduce, you will need to use the
// ToolRunner
// if you want libjars to be passed properly to the map and reduce tasks
// even though this class isn't a mapreduce
@Override
public int run(String[] args) throws Exception {
if (args.length != 5) {
System.out.println("Usage: accumulo " + this.getClass().getName() + " <instance name> <zoo keepers> <tablename> <username> <password>");
return 1;
}
Text tableName = new Text(args[2]);
Job job = new Job(getConf());
Configuration conf = job.getConfiguration();
AccumuloOutputFormat.setZooKeeperInstance(job, args[0], args[1]);
AccumuloOutputFormat.setOutputInfo(job, args[3], args[4].getBytes(), true, null);
job.setOutputFormatClass(AccumuloOutputFormat.class);
// when running a mapreduce, you won't need to instantiate the output
// format and record writer
// mapreduce will do that for you, and you will just use
// output.collect(tableName, mutation)
TaskAttemptContext context = new TaskAttemptContext(conf, new TaskAttemptID());
RecordWriter<Text,Mutation> rw = new AccumuloOutputFormat().getRecordWriter(context);
Text colf = new Text("colfam");
System.out.println("writing ...");
for (int i = 0; i < 10000; i++) {
Mutation m = new Mutation(new Text(String.format("row_%d", i)));
for (int j = 0; j < 5; j++) {
m.put(colf, new Text(String.format("colqual_%d", j)), new Value((String.format("value_%d_%d", i, j)).getBytes()));
}
rw.write(tableName, m); // repeat until done
if (i % 100 == 0)
System.out.println(i);
}
rw.close(context); // close when done
return 0;
}
public static void main(String[] args) throws Exception {
System.exit(ToolRunner.run(CachedConfiguration.getInstance(), new InsertWithOutputFormat(), args));
}
}