/*
 * 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
 * limitations under the License.
 */


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

import java.io.IOException;

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

/**
 * Same as the non rich test input format, except it provide access to runtime context.
 */
public class TestRichInputFormat extends GenericInputFormat<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;
	private boolean openCalled = false;
	private boolean closeCalled = false;

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

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

	public void reset() {
		count = 0;
		openCalled = false;
		closeCalled = false;
	}

	@Override
	public void openInputFormat() {
		openCalled = true;
	}

	@Override
	public void closeInputFormat() {
		closeCalled = true;
	}

	public boolean hasBeenOpened() {
		return openCalled;
	}

	public boolean hasBeenClosed() {
		return closeCalled;
	}
}