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/*
* SPDX-FileCopyrightText: 2023 The Refinery Authors <https://refinery.tools/>
*
* SPDX-License-Identifier: EPL-2.0
*/
package tools.refinery.store.dse.transition.statespace.internal;
import org.eclipse.collections.api.factory.primitive.IntObjectMaps;
import org.eclipse.collections.api.map.primitive.MutableIntObjectMap;
import tools.refinery.store.dse.transition.VersionWithObjectiveValue;
import tools.refinery.store.dse.transition.statespace.EquivalenceClassStore;
import tools.refinery.store.statecoding.StateCoderResult;
import tools.refinery.store.statecoding.StateCoderStoreAdapter;
import tools.refinery.store.statecoding.StateEquivalenceChecker;
import java.util.ArrayList;
public abstract class CompleteEquivalenceClassStore extends AbstractEquivalenceClassStore implements EquivalenceClassStore {
static class SymmetryStoreArray extends ArrayList<VersionWithObjectiveValue> {
final int[] activationSizes;
final boolean accept;
SymmetryStoreArray(int[] activationSizes, boolean accept) {
super();
this.activationSizes = activationSizes;
this.accept = accept;
}
}
private final MutableIntObjectMap<Object> modelCode2Versions = IntObjectMaps.mutable.empty();
protected CompleteEquivalenceClassStore(StateCoderStoreAdapter stateCoderStoreAdapter) {
super(stateCoderStoreAdapter);
}
@Override
protected boolean tryToAdd(StateCoderResult stateCoderResult, VersionWithObjectiveValue newVersion,
int[] emptyActivations, boolean accept) {
int modelCode = stateCoderResult.modelCode();
Object old = modelCode2Versions.updateValue(
modelCode,
() -> newVersion,
x -> {
if (x instanceof SymmetryStoreArray array) {
if(array.accept != accept || array.activationSizes != emptyActivations) {
this.delegate(newVersion,emptyActivations,accept);
return x;
}
array.add(newVersion);
return array;
} else {
SymmetryStoreArray result = new SymmetryStoreArray(emptyActivations, accept);
result.add((VersionWithObjectiveValue) x);
result.add(newVersion);
return result;
}
});
return old == null;
}
@Override
public void resolveOneSymmetry() {
var unresolvedSimilarity = getOneUnresolvedSymmetry();
if (unresolvedSimilarity == null) {
return;
}
var outcome = this.stateCoderStoreAdapter.checkEquivalence(unresolvedSimilarity.get(0).version(),
unresolvedSimilarity.get(1).version());
if (outcome != StateEquivalenceChecker.EquivalenceResult.ISOMORPHIC) {
delegate(unresolvedSimilarity.get(1), unresolvedSimilarity.activationSizes, unresolvedSimilarity.accept);
}
}
//record UnresolvedSymmetryResult
private synchronized SymmetryStoreArray getOneUnresolvedSymmetry() {
if (numberOfUnresolvedSymmetries <= 0) {
return null;
}
for (var entry : modelCode2Versions.keyValuesView()) {
int hash = entry.getOne();
var value = entry.getTwo();
if (value instanceof SymmetryStoreArray array) {
int size = array.size();
var representative = array.get(0);
var similar = array.get(size - 1);
array.remove(size - 1);
if (size <= 2) {
modelCode2Versions.put(hash, representative);
}
var result = new SymmetryStoreArray(array.activationSizes, array.accept);
result.add(representative);
result.add(similar);
return result;
}
}
return null;
}
}
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