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/*
* SPDX-FileCopyrightText: 2021-2023 The Refinery Authors <https://refinery.tools/>
*
* SPDX-License-Identifier: EPL-2.0
*/
package tools.refinery.store.dse.internal;
import org.eclipse.collections.api.block.procedure.Procedure;
import tools.refinery.store.model.Model;
import tools.refinery.store.query.ModelQueryAdapter;
import tools.refinery.store.query.dnf.RelationalQuery;
import tools.refinery.store.dse.ActionFactory;
import tools.refinery.store.query.resultset.OrderedResultSet;
import tools.refinery.store.query.resultset.ResultSet;
import tools.refinery.store.tuple.Tuple;
import java.util.*;
public class TransformationRule {
private final String name;
private final RelationalQuery precondition;
private final ActionFactory actionFactory;
private Procedure<Tuple> action;
private OrderedResultSet<Boolean> activations;
private Random random;
private ModelQueryAdapter queryEngine;
@SuppressWarnings("squid:S2245")
public TransformationRule(String name, RelationalQuery precondition, ActionFactory actionFactory) {
this(name, precondition, actionFactory, new Random());
}
@SuppressWarnings("squid:S2245")
public TransformationRule(String name, RelationalQuery precondition, ActionFactory actionFactory, long seed) {
this(name, precondition, actionFactory, new Random(seed));
}
public TransformationRule(String name, RelationalQuery precondition, ActionFactory actionFactory, Random random) {
this.name = name;
this.precondition = precondition;
this.actionFactory = actionFactory;
this.random = random;
}
public boolean prepare(Model model, ModelQueryAdapter queryEngine) {
action = actionFactory.prepare(model);
this.queryEngine = queryEngine;
activations = new OrderedResultSet<>(queryEngine.getResultSet(precondition));
return true;
}
public boolean fireActivation(Tuple activation) {
action.accept(activation);
queryEngine.flushChanges();
return true;
}
public boolean fireRandomActivation() {
return getRandomActivation().fire();
}
public String getName() {
return name;
}
public RelationalQuery getPrecondition() {
return precondition;
}
public ResultSet<Boolean> getAllActivationsAsResultSet() {
return activations;
}
public Set<Activation> getAllActivations() {
var result = new LinkedHashSet<Activation>();
var cursor = activations.getAll();
while (cursor.move()) {
result.add(new Activation(this, cursor.getKey()));
}
return result;
}
public List<Activation> getAllActivationsAsList() {
var result = new ArrayList<Activation>();
var cursor = activations.getAll();
while (cursor.move()) {
result.add(new Activation(this, cursor.getKey()));
}
return result;
}
public Activation getRandomActivation() {
return new Activation(this, activations.getKey(random.nextInt(activations.size())));
}
public Activation getActivation(int index) {
return new Activation(this, activations.getKey(index));
}
}
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