* {@inheritDoc}
*/
@Override
public Object read(final InputStream is) {
final BasicNetwork result = new BasicNetwork();
final FlatNetwork flat = new FlatNetwork();
final EncogReadHelper in = new EncogReadHelper(is);
EncogFileSection section;
while ((section = in.readNextSection()) != null) {
if (section.getSectionName().equals("BASIC")
&& section.getSubSectionName().equals("PARAMS")) {
final Map<String, String> params = section.parseParams();
result.getProperties().putAll(params);
}
if (section.getSectionName().equals("BASIC")
&& section.getSubSectionName().equals("NETWORK")) {
final Map<String, String> params = section.parseParams();
flat.setBeginTraining(EncogFileSection.parseInt(params,
BasicNetwork.TAG_BEGIN_TRAINING));
flat.setConnectionLimit(EncogFileSection.parseDouble(params,
BasicNetwork.TAG_CONNECTION_LIMIT));
flat.setContextTargetOffset(EncogFileSection.parseIntArray(
params, BasicNetwork.TAG_CONTEXT_TARGET_OFFSET));
flat.setContextTargetSize(EncogFileSection.parseIntArray(
params, BasicNetwork.TAG_CONTEXT_TARGET_SIZE));
flat.setEndTraining(EncogFileSection.parseInt(params,
BasicNetwork.TAG_END_TRAINING));
flat.setHasContext(EncogFileSection.parseBoolean(params,
BasicNetwork.TAG_HAS_CONTEXT));
flat.setInputCount(EncogFileSection.parseInt(params,
PersistConst.INPUT_COUNT));
flat.setLayerCounts(EncogFileSection.parseIntArray(params,
BasicNetwork.TAG_LAYER_COUNTS));
flat.setLayerFeedCounts(EncogFileSection.parseIntArray(params,
BasicNetwork.TAG_LAYER_FEED_COUNTS));
flat.setLayerContextCount(EncogFileSection.parseIntArray(
params, BasicNetwork.TAG_LAYER_CONTEXT_COUNT));
flat.setLayerIndex(EncogFileSection.parseIntArray(params,
BasicNetwork.TAG_LAYER_INDEX));
flat.setLayerOutput(section.parseDoubleArray(params,
PersistConst.OUTPUT));
flat.setLayerSums(new double[flat.getLayerOutput().length]);
flat.setOutputCount(EncogFileSection.parseInt(params,
PersistConst.OUTPUT_COUNT));
flat.setWeightIndex(EncogFileSection.parseIntArray(params,
BasicNetwork.TAG_WEIGHT_INDEX));
flat.setWeights(section.parseDoubleArray(params,
PersistConst.WEIGHTS));
flat.setBiasActivation(section.parseDoubleArray(
params, BasicNetwork.TAG_BIAS_ACTIVATION));
} else if (section.getSectionName().equals("BASIC")
&& section.getSubSectionName().equals("ACTIVATION")) {
int index = 0;
flat.setActivationFunctions(new ActivationFunction[flat
.getLayerCounts().length]);
for (final String line : section.getLines()) {
ActivationFunction af = null;
final List<String> cols = EncogFileSection
.splitColumns(line);
// if this is a class name with a path, then do not default to inside of the Encog package.
String name;
if( cols.get(0).indexOf('.')!=-1 ) {
name = cols.get(0);
} else {
name = "org.encog.engine.network.activation."
+ cols.get(0);
}
try {
final Class<?> clazz = Class.forName(name);
af = (ActivationFunction) clazz.newInstance();
} catch (final ClassNotFoundException e) {
throw new PersistError(e);
} catch (final InstantiationException e) {
throw new PersistError(e);
} catch (final IllegalAccessException e) {
throw new PersistError(e);
}
for (int i = 0; i < af.getParamNames().length; i++) {
af.setParam(i,
CSVFormat.EG_FORMAT.parse(cols.get(i + 1)));
}
flat.getActivationFunctions()[index++] = af;
}
}
}
result.getStructure().setFlat(flat);