/*
* Encog(tm) Core v3.0 - Java Version
* http://www.heatonresearch.com/encog/
* http://code.google.com/p/encog-java/
* Copyright 2008-2011 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.neural.cpn;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Map;
import org.encog.mathutil.matrices.Matrix;
import org.encog.persist.EncogFileSection;
import org.encog.persist.EncogPersistor;
import org.encog.persist.EncogReadHelper;
import org.encog.persist.EncogWriteHelper;
import org.encog.persist.PersistConst;
/**
* Persist a CPN network.
*/
public class PersistCPN implements EncogPersistor {
/**
* The input to instar property.
*/
final static String PROPERTY_inputToInstar = "inputToInstar";
/**
* The instar to input property.
*/
final static String PROPERTY_instarToInput = "instarToInput";
/**
* The winner count property.
*/
final static String PROPERTY_winnerCount = "winnerCount";
/**
* {@inheritDoc}
*/
@Override
public final int getFileVersion() {
return 1;
}
/**
* {@inheritDoc}
*/
@Override
public final String getPersistClassString() {
return "CPN";
}
/**
* {@inheritDoc}
*/
@Override
public final Object read(final InputStream is) {
Map<String, String> networkParams = null;
final EncogReadHelper in = new EncogReadHelper(is);
EncogFileSection section;
int inputCount = 0;
int instarCount = 0;
int outputCount = 0;
int winnerCount = 0;
Matrix m1 = null;
Matrix m2 = null;
while ((section = in.readNextSection()) != null) {
if (section.getSectionName().equals("CPN")
&& section.getSubSectionName().equals("PARAMS")) {
networkParams = section.parseParams();
}
if (section.getSectionName().equals("CPN")
&& section.getSubSectionName().equals("NETWORK")) {
final Map<String, String> params = section.parseParams();
inputCount = EncogFileSection.parseInt(params,
PersistConst.INPUT_COUNT);
instarCount = EncogFileSection.parseInt(params,
PersistConst.INSTAR);
outputCount = EncogFileSection.parseInt(params,
PersistConst.OUTPUT_COUNT);
winnerCount = EncogFileSection.parseInt(params,
PersistCPN.PROPERTY_winnerCount);
m1 = EncogFileSection.parseMatrix(params,
PersistCPN.PROPERTY_inputToInstar);
m2 = EncogFileSection.parseMatrix(params,
PersistCPN.PROPERTY_instarToInput);
}
}
final CPN result = new CPN(inputCount, instarCount, outputCount,
winnerCount);
result.getProperties().putAll(networkParams);
result.getWeightsInputToInstar().set(m1);
result.getWeightsInstarToOutstar().set(m2);
return result;
}
/**
* {@inheritDoc}
*/
@Override
public final void save(final OutputStream os, final Object obj) {
final EncogWriteHelper out = new EncogWriteHelper(os);
final CPN cpn = (CPN) obj;
out.addSection("CPN");
out.addSubSection("PARAMS");
out.addProperties(cpn.getProperties());
out.addSubSection("NETWORK");
out.writeProperty(PersistConst.INPUT_COUNT, cpn.getInputCount());
out.writeProperty(PersistConst.INSTAR, cpn.getInstarCount());
out.writeProperty(PersistConst.OUTPUT_COUNT, cpn.getOutputCount());
out.writeProperty(PersistCPN.PROPERTY_inputToInstar,
cpn.getWeightsInputToInstar());
out.writeProperty(PersistCPN.PROPERTY_instarToInput,
cpn.getWeightsInstarToOutstar());
out.writeProperty(PersistCPN.PROPERTY_winnerCount,
cpn.getWinnerCount());
out.flush();
}
}