public static void main(String[] args)
throws IOException, InterruptedException, ClassNotFoundException {
if (args.length < 3) printUsage();
// Graph job configuration
HamaConfiguration conf = new HamaConfiguration();
GraphJob ssspJob = new GraphJob(conf, SSSP.class);
// Set the job name
ssspJob.setJobName("Single Source Shortest Path");
conf.set(START_VERTEX, args[0]);
ssspJob.setInputPath(new Path(args[1]));
ssspJob.setOutputPath(new Path(args[2]));
if (args.length == 4) {
ssspJob.setNumBspTask(Integer.parseInt(args[3]));
}
ssspJob.setVertexClass(ShortestPathVertex.class);
ssspJob.setInputFormat(TextInputFormat.class);
ssspJob.setInputKeyClass(LongWritable.class);
ssspJob.setInputValueClass(Text.class);
ssspJob.setPartitioner(HashPartitioner.class);
ssspJob.setOutputFormat(TextOutputFormat.class);
ssspJob.setVertexInputReaderClass(SSSPTextReader.class);
ssspJob.setOutputKeyClass(IntWritable.class);
ssspJob.setOutputValueClass(IntIntPairWritable.class);
// Iterate until all the nodes have been reached.
ssspJob.setMaxIteration(Integer.MAX_VALUE);
ssspJob.setVertexIDClass(IntWritable.class);
ssspJob.setVertexValueClass(IntIntPairWritable.class);
ssspJob.setEdgeValueClass(IntWritable.class);
long startTime = System.currentTimeMillis();
if (ssspJob.waitForCompletion(true)) {
System.out.println(
"Job Finished in " + (System.currentTimeMillis() - startTime) / 1000.0 + " seconds");
}
}
private static GraphJob createJob(String[] args, HamaConfiguration conf) throws IOException {
// conf.set("hama.graph.vertices.info", "org.apache.hama.graph.InMemoryVerticesInfo");
conf.setInt("a", Integer.parseInt(args[0]));
conf.setInt("b", Integer.parseInt(args[1]));
GraphJob graphJob = new GraphJob(conf, Main.class);
graphJob.setJobName("Propinquity Dynamics");
graphJob.setVertexClass(PDVertex.class);
graphJob.setJar("PropinquityDynamics-1.0-SNAPSHOT.jar");
if (args.length == 5 && !args[4].isEmpty()) {
graphJob.setNumBspTask(Integer.parseInt(args[4]));
} else {
graphJob.setNumBspTask(10);
}
graphJob.setInputPath(new Path(args[2]));
graphJob.setOutputPath(new Path(args[3]));
graphJob.setVertexIDClass(Text.class);
graphJob.setVertexValueClass(MapWritable.class);
graphJob.setEdgeValueClass(IntWritable.class);
graphJob.setInputFormat(TextInputFormat.class);
graphJob.setInputKeyClass(LongWritable.class);
graphJob.setInputValueClass(Text.class);
graphJob.setVertexInputReaderClass(PDVertexReader.class);
graphJob.setPartitioner(HashPartitioner.class);
graphJob.setVertexOutputWriterClass(PDVertexWriter.class);
graphJob.setOutputFormat(TextOutputFormat.class);
graphJob.setOutputKeyClass(Text.class);
graphJob.setOutputValueClass(Text.class);
return graphJob;
}