/*
* 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.ca.universe.basic;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Map;
import org.encog.ca.CellularAutomataError;
import org.encog.ca.universe.UniverseCell;
import org.encog.ca.universe.UniverseCellFactory;
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;
import org.encog.util.csv.CSVFormat;
import org.encog.util.csv.NumberList;
public class PersistBasicUniverse implements EncogPersistor {
@Override
public String getPersistClassString() {
return "BasicUniverse";
}
@Override
public Object read(InputStream is) {
int rows=0;
int cols=0;
int elementCount=0;
int size=0;
double min=0;
double max=0;
Map<String, String> objParams=null;
BasicUniverse result = null;
final EncogReadHelper in = new EncogReadHelper(is);
EncogFileSection section;
while ((section = in.readNextSection()) != null) {
if (section.getSectionName().equals("BasicUniverse")
&& section.getSubSectionName().equals("PARAMS")) {
objParams = section.parseParams();
}
if (section.getSectionName().equals("BasicUniverse")
&& section.getSubSectionName().equals("UNIVERSE-PARAM")) {
final Map<String, String> params = section.parseParams();
cols = EncogFileSection.parseInt(params,PersistConst.COLS);
rows = EncogFileSection.parseInt(params,PersistConst.ROWS);
} else if (section.getSectionName().equals("BasicUniverse")
&& section.getSubSectionName().equals("UNIVERSE-CELLS")) {
final Map<String, String> params = section.parseParams();
min = EncogFileSection.parseDouble(params,PersistConst.MIN);
max = EncogFileSection.parseDouble(params,PersistConst.MAX);
elementCount = EncogFileSection.parseInt(params,BasicUniverse.ELEMENT_COUNT);
size = EncogFileSection.parseInt(params,PersistConst.SIZE);
} else if (section.getSectionName().equals("BasicUniverse")
&& section.getSubSectionName().equals("UNIVERSE")) {
// first create the universe
BasicCellFactory factory;
if( elementCount==-1 ) {
factory = new BasicCellFactory(size,min,max);
} else {
factory = new BasicCellFactory(size,elementCount);
}
result = new BasicUniverse(rows,cols,factory);
result.getProperties().putAll(objParams);
// now fill the universe
int ec = 1;
if( elementCount!=-1 ) {
ec = elementCount;
}
int row = 0;
for(String line : section.getLines() ) {
double[] d = NumberList.fromList(CSVFormat.EG_FORMAT, line);
int idx = 0;
for(int col=0;col<cols;col++) {
UniverseCell cell = result.get(row, col);
for(int i=0;i<size;i++) {
cell.set(i, d[idx++]);
}
}
row++;
}
}
}
return result;
}
@Override
public void save(OutputStream os, Object obj) {
final EncogWriteHelper out = new EncogWriteHelper(os);
final BasicUniverse universe = (BasicUniverse) obj;
out.addSection("BasicUniverse");
out.addSubSection("PARAMS");
out.addProperties(universe.getProperties());
out.addSubSection("UNIVERSE-PARAM");
out.writeProperty(PersistConst.ROWS, universe.getRows());
out.writeProperty(PersistConst.COLS, universe.getColumns());
out.addSubSection("UNIVERSE-CELLS");
UniverseCellFactory factory = universe.getCellFactory();
String className = factory.getClass().getSimpleName();
out.writeProperty(PersistConst.TYPE, className);
if( factory instanceof BasicCellFactory ) {
BasicCellFactory factory2 = (BasicCellFactory)factory;
out.writeProperty(BasicUniverse.ELEMENT_COUNT, factory2.getElementCount());
out.writeProperty(PersistConst.MAX, factory2.getMax());
out.writeProperty(PersistConst.MIN, factory2.getMin());
out.writeProperty(PersistConst.SIZE, factory2.size());
} else {
throw new CellularAutomataError("Unknown cell factory: " + className);
}
out.addSubSection("UNIVERSE");
for(int row = 0; row<universe.getRows(); row++) {
for(int col = 0; col<universe.getColumns(); col++) {
UniverseCell cell = universe.get(row, col);
for(int i=0;i<cell.size();i++) {
out.addColumn(cell.get(i));
}
}
out.writeLine();
}
out.flush();
}
@Override
public int getFileVersion() {
return 0;
}
}