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/*******************************************************************************
* Copyright (c) 2010-2013, Zoltan Ujhelyi, Istvan Rath and Daniel Varro
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0 which is available at
* http://www.eclipse.org/legal/epl-v20.html.
*
* SPDX-License-Identifier: EPL-2.0
*******************************************************************************/
package tools.refinery.viatra.runtime.localsearch.operations.check;
import java.util.Collections;
import java.util.List;
import java.util.function.Function;
import tools.refinery.viatra.runtime.localsearch.MatchingFrame;
import tools.refinery.viatra.runtime.localsearch.matcher.ISearchContext;
import tools.refinery.viatra.runtime.localsearch.operations.CheckOperationExecutor;
import tools.refinery.viatra.runtime.localsearch.operations.IPatternMatcherOperation;
import tools.refinery.viatra.runtime.localsearch.operations.ISearchOperation;
import tools.refinery.viatra.runtime.localsearch.operations.util.CallInformation;
import tools.refinery.viatra.runtime.matchers.backend.IQueryResultProvider;
import tools.refinery.viatra.runtime.matchers.tuple.VolatileModifiableMaskedTuple;
/**
* Calculates the count of matches for a called matcher
*
* @author Zoltan Ujhelyi
* @noextend This class is not intended to be subclassed by clients.
*/
public class CountCheck implements ISearchOperation, IPatternMatcherOperation {
private class Executor extends CheckOperationExecutor {
private final VolatileModifiableMaskedTuple maskedTuple;
private IQueryResultProvider matcher;
public Executor() {
maskedTuple = new VolatileModifiableMaskedTuple(information.getThinFrameMask());
}
@Override
public void onInitialize(MatchingFrame frame, ISearchContext context) {
super.onInitialize(frame, context);
maskedTuple.updateTuple(frame);
matcher = context.getMatcher(information.getCallWithAdornment());
}
@Override
protected boolean check(MatchingFrame frame, ISearchContext context) {
int count = matcher.countMatches(information.getParameterMask(), maskedTuple);
return ((Integer)frame.getValue(position)) == count;
}
@Override
public ISearchOperation getOperation() {
return CountCheck.this;
}
}
private final int position;
private final CallInformation information;
/**
* @since 1.7
*/
public CountCheck(CallInformation information, int position) {
super();
this.information = information;
this.position = position;
}
@Override
public ISearchOperationExecutor createExecutor() {
return new Executor();
}
@Override
public List<Integer> getVariablePositions() {
return Collections.singletonList(position);
}
@Override
public String toString(Function<Integer, String> variableMapping) {
return "check "+variableMapping.apply(position)+" = count find "+ information.toString(variableMapping);
}
@Override
public CallInformation getCallInformation() {
return information;
}
}
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