/***********************************************************************************************************************
 * 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.pact.runtime.test.util.types;

import java.io.IOException;

import eu.stratosphere.api.common.typeutils.TypeSerializer;
import eu.stratosphere.api.common.typeutils.TypeSerializerFactory;
import eu.stratosphere.configuration.Configuration;
import eu.stratosphere.core.memory.DataInputView;
import eu.stratosphere.core.memory.DataOutputView;


public class IntPairSerializer extends TypeSerializer<IntPair> {
	
	private static final long serialVersionUID = 1L;

	@Override
	public boolean isImmutableType() {
		return false;
	}

	@Override
	public boolean isStateful() {
		return false;
	}

	@Override
	public IntPair createInstance() {
		return new IntPair();
	}

	@Override
	public IntPair copy(IntPair from, IntPair reuse) {
		reuse.setKey(from.getKey());
		reuse.setValue(from.getValue());
		return reuse;
	}
	

	@Override
	public int getLength() {
		return 8;
	}

	@Override
	public void serialize(IntPair record, DataOutputView target) throws IOException {
		target.writeInt(record.getKey());
		target.writeInt(record.getValue());
	}

	@Override
	public IntPair deserialize(IntPair reuse, DataInputView source) throws IOException {
		reuse.setKey(source.readInt());
		reuse.setValue(source.readInt());
		return reuse;
	}

	@Override
	public void copy(DataInputView source, DataOutputView target) throws IOException {
		target.write(source, 8);;
	}

	public static final class IntPairSerializerFactory implements TypeSerializerFactory<IntPair> {

		@Override
		public void writeParametersToConfig(Configuration config) {}

		@Override
		public void readParametersFromConfig(Configuration config, ClassLoader cl) {}

		@Override
		public IntPairSerializer getSerializer() {
			return new IntPairSerializer();
		}

		@Override
		public Class<IntPair> getDataType() {
			return IntPair.class;
		}
		
		@Override
		public int hashCode() {
			return 42;
		}
		
		public boolean equals(Object obj) {
			return obj.getClass() == IntPairSerializerFactory.class;
		};
	}
}