@Override
public void map(LongWritable key, Text value, TupleMRContext context, Collector collector)
throws IOException, InterruptedException {
user.set("name", "Pere");
user.set("money", 100);
user.set("my_country", "ES");
collector.write(user);
user.set("name", "Iván");
user.set("my_country", "ES");
user.set("money", 50);
collector.write(user);
user.set("my_country", "FR");
user.set("money", 150);
user.set("name", "Eric");
collector.write(user);
country.set("country", "ES");
country.set("averageSalary", 1000);
collector.write(country);
country.set("country", "FR");
country.set("averageSalary", 1500);
collector.write(country);
}
@Override
public void reduce(
ITuple group, Iterable<ITuple> tuples, TupleMRContext context, Collector collector)
throws IOException, InterruptedException, TupleMRException {
int count = 0;
ITuple outputTuple = null;
for (ITuple tuple : tuples) {
outputTuple = tuple;
count += (Integer) tuple.get(1);
}
outputTuple.set(1, count);
collector.write(outputTuple, NullWritable.get());
}
@Override
public void map(LongWritable key, Text value, TupleMRContext context, Collector collector)
throws IOException, InterruptedException {
if (tuple == null) {
tuple = new Tuple(context.getTupleMRConfig().getIntermediateSchema(0));
}
StringTokenizer itr = new StringTokenizer(value.toString());
tuple.set(1, 1);
while (itr.hasMoreTokens()) {
tuple.set(0, itr.nextToken());
collector.write(tuple);
}
}
@Override
public void reduce(
ITuple group, Iterable<ITuple> tuples, TupleMRContext context, Collector collector)
throws IOException, InterruptedException, TupleMRException {
if (outputCount == null) {
outputCount = new IntWritable();
}
int count = 0;
for (ITuple tuple : tuples) {
count += (Integer) tuple.get(1);
}
outputCount.set(count);
collector.write((Text) group.get(0), outputCount);
}