/*
* Encog(tm) Core v3.4 - Java Version
* http://www.heatonresearch.com/encog/
* https://github.com/encog/encog-java-core
* Copyright 2008-2016 Heaton Research, 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.
*
* For more information on Heaton Research copyrights, licenses
* and trademarks visit:
* http://www.heatonresearch.com/copyright
*/
package org.encog.ml.data.buffer.codec;
import org.encog.util.EngineArray;
/**
* A CODEC used for arrays.
*
*/
public class ArrayDataCODEC implements DataSetCODEC {
/**
* The current index.
*/
private int index;
/**
* The number of input elements.
*/
private int inputSize;
/**
* The number of ideal elements.
*/
private int idealSize;
/**
* The input array.
*/
private double[][] input;
/**
* The ideal array.
*/
private double[][] ideal;
/**
* Construct an array CODEC.
* @param theInput The input array.
* @param theIdeal The ideal array.
*/
public ArrayDataCODEC(final double[][] theInput,
final double[][] theIdeal) {
this.input = theInput;
this.ideal = theIdeal;
this.inputSize = input[0].length;
this.idealSize = ideal[0].length;
this.index = 0;
}
/**
* Default constructor.
*/
public ArrayDataCODEC() {
}
/**
* {@inheritDoc}
*/
@Override
public int getInputSize() {
return inputSize;
}
/**
* {@inheritDoc}
*/
@Override
public int getIdealSize() {
return idealSize;
}
/**
* {@inheritDoc}
*/
@Override
public boolean read(final double[] theInput,
final double[] theIdeal, final double[] significance) {
if (index >= this.input.length) {
return false;
} else {
EngineArray.arrayCopy(this.input[index], theInput);
EngineArray.arrayCopy(this.ideal[index], theIdeal);
significance[0] = 1.0;
index++;
return true;
}
}
/**
* {@inheritDoc}
*/
@Override
public void write(final double[] theInput,
final double[] theIdeal,final double significance) {
EngineArray.arrayCopy(theInput, this.input[index]);
EngineArray.arrayCopy(theIdeal, this.ideal[index]);
index++;
}
/**
* {@inheritDoc}
*/
@Override
public void prepareWrite(final int recordCount,
final int theInputSize, final int theIdealSize) {
this.input = new double[recordCount][theInputSize];
this.ideal = new double[recordCount][theIdealSize];
this.inputSize = theInputSize;
this.idealSize = theIdealSize;
this.index = 0;
}
/**
* @return The input array.
*/
public double[][] getInput() {
return input;
}
/**
* @return The ideal array.
*/
public double[][] getIdeal() {
return ideal;
}
/**
* {@inheritDoc}
*/
@Override
public void prepareRead() {
}
/**
* {@inheritDoc}
*/
@Override
public void close() {
}
}