TestNonRichInputFormat.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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
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 */


package org.apache.flink.api.common.operators.util;

import org.apache.flink.api.common.io.NonParallelInput;

import java.io.IOException;

/**
 * Test Non rich input format class which emits just five elements.
 */
public class TestNonRichInputFormat extends NonRichGenericInputFormat<String> implements NonParallelInput{

	private static final long serialVersionUID = 1L;
	private static final int NUM = 5;
	private static final String[] NAMES = TestIOData.NAMES;
	private int count = 0;

	@Override
	public boolean reachedEnd() throws IOException {
		return count >= NUM;
	}

	@Override
	public String nextRecord(String reuse) throws IOException {
		count++;
		return NAMES[count - 1];
	}

	public void reset(){
		count = 0;
	}
}