1 files changed, 49 insertions, 0 deletions

diff --git a/subprojects/viatra-runtime-localsearch/src/main/java/tools/refinery/viatra/runtime/localsearch/plan/SimplePlanProvider.java b/subprojects/viatra-runtime-localsearch/src/main/java/tools/refinery/viatra/runtime/localsearch/plan/SimplePlanProvider.java
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index 00000000..ed31bcb0
--- /dev/null
+++ b/subprojects/viatra-runtime-localsearch/src/main/java/tools/refinery/viatra/runtime/localsearch/plan/SimplePlanProvider.java
@@ -0,0 +1,49 @@
+/*******************************************************************************
+ * 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;
+    }
+
+}