# A MR job counts occurrences of every word in the article texts.
#
# rm -rf step-5-out-ex1; perl step-5-exercise1.pl /home/straka/wiki/cs-text-medium/ step-5-out-ex1
# less step-5-out-ex1/part-*

package My::Mapper;
use Moose;
with 'Hadoop::Mapper';

sub map {
  my ($self, $key, $value, $context) = @_;

  # YOUR CODE HERE
  $context->write($key, 1);

}

package My::Reducer;
use Moose;
with 'Hadoop::Reducer';

sub reduce {
  my ($self, $key, $values, $context) = @_;

  # YOUR CODE HERE
  while ($values->next) {
    $context->write($key, $values->value);
  }

}

package main;
use Hadoop::Runner;

my $runner = Hadoop::Runner->new(
  mapper => My::Mapper->new(),
  reducer => My::Reducer->new(),
  input_format => 'KeyValueTextInputFormat');

$runner->run();