public int run(String[] args) throws Exception {
if (args.length < 4) {
System.out.println("ERROR: Please Enter args : input output type(text|seq) splitChar(9=\t)");
return JobClient.SUCCESS;
}
String input = args[0];
String output = args[1];
String type = args[2];
String splitChar = args[3];
JobConf config = new JobConf(getConf(), getClass());
config.set("user.split", splitChar);
config.setJobName("File Filter -" + System.currentTimeMillis());
config.setNumReduceTasks(10);
config.setReducerClass(IdentityReducer.class);
config.setMapperClass(FileTestMapper.class);
if ("text".equals(type)) {
config.setInputFormat(TextInputFormat.class);
TextInputFormat.addInputPath(config, new Path(input));
} else {
config.setInputFormat(SequenceFileInputFormat.class);
SequenceFileInputFormat.addInputPath(config, new Path(input));
}
config.setMapOutputKeyClass(Text.class);
config.setMapOutputValueClass(Text.class);
config.setOutputKeyClass(Text.class);
config.setOutputValueClass(Text.class);
// if output path exists then return
FileSystem fs = FileSystem.get(config);
Path outputPath = new Path(output);
FileOutputFormat.setOutputPath(config, outputPath);
if (!fs.exists(outputPath)) {
JobClient.runJob(config);
} else {
System.out.println("You has finished this job today ! " + outputPath);
}
return JobClient.SUCCESS;
}
public int run(String[] args) throws Exception {
if (args.length < 1) {
args = new String[] {DateStringUtils.now()};
System.out.println(
"ERROR: Please Enter Date , eg. 20101010 ! now use default => " + DateStringUtils.now());
}
JobConf config = new JobConf(getConf(), getClass());
config.set("user.args", Utils.asString(args));
config.setJobName(getClass() + "-" + System.currentTimeMillis());
config.setNumReduceTasks(100);
config.setMapperClass(getClass());
config.setReducerClass(getClass());
config.setInputFormat(getInputFormat());
config.setMapOutputKeyClass(Text.class);
config.setMapOutputValueClass(Text.class);
// add input paths
for (String path : getInputPath(args)) {
if (TextInputFormat.class.equals(getInputFormat())) {
TextInputFormat.addInputPath(config, new Path(path));
} else if (SequenceFileInputFormat.class.equals(getInputFormat())) {
SequenceFileInputFormat.addInputPath(config, new Path(path));
}
}
config.setOutputKeyClass(Text.class);
config.setOutputValueClass(Text.class);
// if output path exists then return
FileSystem fs = FileSystem.get(config);
Path outputPath = new Path(getOutputPath(args));
FileOutputFormat.setOutputPath(config, outputPath);
if (!fs.exists(outputPath)) {
JobClient.runJob(config);
} else {
System.out.println("You has finished this job today ! " + outputPath);
}
return JobClient.SUCCESS;
}