/*
* Copyright © 2014 Cask Data, Inc.
*
* 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 co.cask.cdap.examples.countrandom;
import co.cask.cdap.api.annotation.HashPartition;
import co.cask.cdap.api.annotation.ProcessInput;
import co.cask.cdap.api.annotation.UseDataSet;
import co.cask.cdap.api.dataset.lib.KeyValueTable;
import co.cask.cdap.api.flow.flowlet.AbstractFlowlet;
/**
* Number Counter Flowlet {@code NumberCounter}.
*/
public class NumberCounter extends AbstractFlowlet {
@UseDataSet(CountRandom.TABLE_NAME)
KeyValueTable counters;
@ProcessInput
@HashPartition("n")
public void process(Integer number) {
counters.increment(number.toString().getBytes(), 1L);
}
}