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/*******************************************************************************
* Copyright (c) 2010-2016, Grill Balázs, IncQuery Labs Ltd.
* 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.plan;
import java.util.Collection;
import org.apache.log4j.Logger;
import tools.refinery.viatra.runtime.localsearch.matcher.MatcherReference;
import tools.refinery.viatra.runtime.localsearch.matcher.integration.LocalSearchHints;
import tools.refinery.viatra.runtime.localsearch.planner.LocalSearchPlanner;
import tools.refinery.viatra.runtime.localsearch.planner.compiler.IOperationCompiler;
import tools.refinery.viatra.runtime.matchers.backend.ResultProviderRequestor;
import tools.refinery.viatra.runtime.matchers.context.IQueryBackendContext;
/**
* A plan provider implementation which caches previously calculated plans to avoid re-planning for the same adornment
*
* @author Grill Balázs
* @since 1.7
*
*/
public class SimplePlanProvider implements IPlanProvider {
private final Logger logger;
public SimplePlanProvider(Logger logger) {
this.logger = logger;
}
@Override
public IPlanDescriptor getPlan(IQueryBackendContext backend, IOperationCompiler compiler,
final ResultProviderRequestor resultRequestor,
final LocalSearchHints configuration, MatcherReference key) {
LocalSearchPlanner planner = new LocalSearchPlanner(backend, compiler, logger, configuration, resultRequestor);
Collection<SearchPlanForBody> plansForBodies = planner.plan(key.getQuery(), key.getAdornment());
IPlanDescriptor plan = new PlanDescriptor(key.getQuery(), plansForBodies, key.getAdornment());
return plan;
}
}
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