/*
* 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.wordcount;
import co.cask.cdap.api.annotation.ProcessInput;
import co.cask.cdap.api.annotation.Property;
import co.cask.cdap.api.flow.flowlet.AbstractFlowlet;
import co.cask.cdap.api.flow.flowlet.FlowletContext;
import java.util.Set;
/**
* Word associator Flowlet.
*/
public class WordAssociator extends AbstractFlowlet {
@Property
private final String wordAssocTableName;
private AssociationTable associationTable;
public WordAssociator(String wordAssocTableName) {
this.wordAssocTableName = wordAssocTableName;
}
@Override
public void initialize(FlowletContext context) throws Exception {
super.initialize(context);
associationTable = context.getDataset(wordAssocTableName);
}
@ProcessInput
public void process(Set<String> words) {
// Store word associations
this.associationTable.writeWordAssocs(words);
}
}