| /* |
| * Copyright 2014 Stresso authors (see AUTHORS) |
| * |
| * 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 stresso.trie; |
| |
| import java.io.File; |
| import java.io.IOException; |
| |
| import org.apache.fluo.api.client.Loader; |
| import org.apache.fluo.api.config.FluoConfiguration; |
| import org.apache.fluo.mapreduce.FluoOutputFormat; |
| import org.apache.hadoop.conf.Configured; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.io.LongWritable; |
| import org.apache.hadoop.io.NullWritable; |
| import org.apache.hadoop.mapreduce.Job; |
| import org.apache.hadoop.mapreduce.Mapper; |
| import org.apache.hadoop.mapreduce.lib.input.SequenceFileInputFormat; |
| import org.apache.hadoop.util.Tool; |
| import org.apache.hadoop.util.ToolRunner; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| public class Load extends Configured implements Tool { |
| |
| private static final Logger log = LoggerFactory.getLogger(Load.class); |
| |
| public static class LoadMapper extends Mapper<LongWritable, NullWritable, Loader, NullWritable> { |
| |
| @Override |
| protected void map(LongWritable key, NullWritable val, Context context) |
| throws IOException, InterruptedException { |
| context.write(new NumberLoader(key.get()), val); |
| } |
| } |
| |
| @Override |
| public int run(String[] args) throws Exception { |
| |
| if (args.length != 2) { |
| log.error("Usage: " + this.getClass().getSimpleName() + "<fluoProps> <input dir>"); |
| System.exit(-1); |
| } |
| |
| FluoConfiguration props = new FluoConfiguration(new File(args[0])); |
| Path input = new Path(args[1]); |
| |
| Job job = Job.getInstance(getConf()); |
| |
| job.setJobName(Load.class.getName()); |
| |
| job.setJarByClass(Load.class); |
| |
| job.setInputFormatClass(SequenceFileInputFormat.class); |
| SequenceFileInputFormat.addInputPath(job, input); |
| |
| job.setMapperClass(LoadMapper.class); |
| |
| job.setNumReduceTasks(0); |
| |
| job.setOutputFormatClass(FluoOutputFormat.class); |
| FluoOutputFormat.configure(job, props); |
| |
| job.getConfiguration().setBoolean("mapreduce.map.speculative", false); |
| |
| boolean success = job.waitForCompletion(true); |
| return success ? 0 : 1; |
| } |
| |
| public static void main(String[] args) throws Exception { |
| int ret = ToolRunner.run(new Load(), args); |
| System.exit(ret); |
| } |
| |
| } |