/***********************************************************************************************************************
* Copyright (C) 2010-2013 by the Stratosphere project (http://stratosphere.eu)
*
* 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 eu.stratosphere.test.recordJobs.util;
import eu.stratosphere.api.java.record.io.GenericInputFormat;
import eu.stratosphere.configuration.Configuration;
import eu.stratosphere.types.IntValue;
import eu.stratosphere.types.Record;
/**
*
*/
public class UniformIntInput extends GenericInputFormat {
private static final long serialVersionUID = 1L;
public static final String NUM_KEYS_KEY = "testfomat.numkeys";
public static final String NUM_VALUES_KEY = "testfomat.numvalues";
private static final int DEFAULT_NUM_KEYS = 1000;
private static final int DEFAULT_NUM_VALUES = 1000;
private final IntValue key = new IntValue();
private final IntValue value = new IntValue();
private int numKeys;
private int numValues;
private int keyInt;
private int valueInt;
public UniformIntInput() {
this(DEFAULT_NUM_KEYS, DEFAULT_NUM_VALUES);
}
public UniformIntInput(final int numKeys, final int numValues) {
this.numKeys = numKeys;
this.numValues = numValues;
}
@Override
public void configure(Configuration parameters) {
super.configure(parameters);
this.numKeys = parameters.getInteger(NUM_KEYS_KEY, this.numKeys);
this.numValues = parameters.getInteger(NUM_VALUES_KEY, this.numValues);
}
@Override
public boolean reachedEnd() {
return this.valueInt >= this.numValues;
}
@Override
public Record nextRecord(Record record) {
if (this.keyInt == this.numKeys) {
this.keyInt = 0;
this.valueInt++;
}
this.key.setValue(this.keyInt);
this.value.setValue(this.valueInt);
record.setField(0, this.key);
record.setField(1, this.value);
record.updateBinaryRepresenation();
this.keyInt++;
return record;
}
}