1 files changed, 98 insertions, 0 deletions

diff --git a/subprojects/viatra-runtime/src/main/java/tools/refinery/viatra/runtime/matchers/memories/timely/TimelyDefaultMaskedTupleMemory.java b/subprojects/viatra-runtime/src/main/java/tools/refinery/viatra/runtime/matchers/memories/timely/TimelyDefaultMaskedTupleMemory.java
new file mode 100644
index 00000000..623d7399
--- /dev/null
+++ b/subprojects/viatra-runtime/src/main/java/tools/refinery/viatra/runtime/matchers/memories/timely/TimelyDefaultMaskedTupleMemory.java
@@ -0,0 +1,98 @@
+/*******************************************************************************
+ * Copyright (c) 2004-2008 Gabor Bergmann 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.matchers.memories.timely;
+
+import java.util.Collection;
+import java.util.Collections;
+import java.util.Map;
+import java.util.Set;
+
+import tools.refinery.viatra.runtime.matchers.tuple.ITuple;
+import tools.refinery.viatra.runtime.matchers.tuple.Tuple;
+import tools.refinery.viatra.runtime.matchers.tuple.TupleMask;
+import tools.refinery.viatra.runtime.matchers.util.CollectionsFactory;
+import tools.refinery.viatra.runtime.matchers.util.TimelyMemory;
+import tools.refinery.viatra.runtime.matchers.util.timeline.Diff;
+import tools.refinery.viatra.runtime.matchers.util.timeline.Timeline;
+
+/**
+ * Default timely implementation that covers all cases.
+ * 
+ * @author Tamas Szabo
+ * @since 2.3
+ */
+public final class TimelyDefaultMaskedTupleMemory<Timestamp extends Comparable<Timestamp>>
+        extends AbstractTimelyMaskedMemory<Timestamp, Tuple> {
+
+    public TimelyDefaultMaskedTupleMemory(final TupleMask mask, final Object owner, final boolean isLazy) {
+        super(mask, owner, isLazy);
+    }
+
+    @Override
+    public Iterable<Tuple> getSignatures() {
+        return this.memoryMap.keySet();
+    }
+
+    @Override
+    public Diff<Timestamp> removeWithTimestamp(final Tuple tuple, final Tuple signature,
+            final Timestamp timestamp) {
+        final Tuple key = mask.transform(tuple);
+        return removeInternal(key, tuple, timestamp);
+    }
+
+    @Override
+    public Diff<Timestamp> addWithTimestamp(final Tuple tuple, final Tuple signature,
+            final Timestamp timestamp) {
+        final Tuple key = this.mask.transform(tuple);
+        return addInternal(key, tuple, timestamp);
+    }
+
+    @Override
+    public Collection<Tuple> get(final ITuple signature) {
+        return getInternal(signature.toImmutable());
+    }
+
+    @Override
+    public Map<Tuple, Timeline<Timestamp>> getWithTimeline(final ITuple signature) {
+        return getWithTimestampInternal(signature.toImmutable());
+    }
+    
+    @Override
+    public boolean isPresentAtInfinity(final ITuple signature) {
+        return isPresentAtInfinityInteral(signature.toImmutable());
+    }
+    
+    @Override
+    public Set<Tuple> getResumableSignatures() {
+        if (this.foldingStates == null || this.foldingStates.isEmpty()) {
+            return Collections.emptySet();
+        } else {
+            return this.foldingStates.firstEntry().getValue();
+        }
+    }
+    
+    @Override
+    public Map<Tuple, Map<Tuple, Diff<Timestamp>>> resumeAt(final Timestamp timestamp) {
+        final Map<Tuple, Map<Tuple, Diff<Timestamp>>> result = CollectionsFactory.createMap();
+        final Timestamp resumableTimestamp = this.getResumableTimestamp();
+        if (resumableTimestamp == null || resumableTimestamp.compareTo(timestamp) != 0) {
+            throw new IllegalStateException("Expected to continue folding at " + resumableTimestamp + "!");
+        }
+        final Set<Tuple> signatures = this.foldingStates.remove(timestamp);
+        for (final Tuple signature : signatures) {
+            final TimelyMemory<Timestamp> memory = this.memoryMap.get(signature);
+            final Map<Tuple, Diff<Timestamp>> diffMap = memory.resumeAt(resumableTimestamp);
+            result.put(signature, diffMap);
+            registerFoldingState(memory.getResumableTimestamp(), signature);
+        }
+        return result;
+    }
+
+}