1 files changed, 106 insertions, 0 deletions

diff --git a/subprojects/viatra-runtime/src/main/java/tools/refinery/viatra/runtime/matchers/memories/timely/TimelyIdentityMaskedTupleMemory.java b/subprojects/viatra-runtime/src/main/java/tools/refinery/viatra/runtime/matchers/memories/timely/TimelyIdentityMaskedTupleMemory.java
new file mode 100644
index 00000000..568f274d
--- /dev/null
+++ b/subprojects/viatra-runtime/src/main/java/tools/refinery/viatra/runtime/matchers/memories/timely/TimelyIdentityMaskedTupleMemory.java
@@ -0,0 +1,106 @@
+/*******************************************************************************
+ * Copyright (c) 2010-2018, Gabor Bergmann, 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.matchers.memories.timely;
+
+import java.util.Collection;
+import java.util.Collections;
+import java.util.Map;
+import java.util.Map.Entry;
+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.timeline.Diff;
+import tools.refinery.viatra.runtime.matchers.util.timeline.Timeline;
+
+/**
+ * Timely specialization for identity mask. 
+ * 
+ * @author Tamas Szabo
+ * @since 2.3
+ */
+public final class TimelyIdentityMaskedTupleMemory<Timestamp extends Comparable<Timestamp>>
+        extends AbstractTimelyTrivialMaskedMemory<Timestamp> {
+
+    public TimelyIdentityMaskedTupleMemory(final TupleMask mask, final Object owner, final boolean isLazy) {
+        super(mask, owner, isLazy);
+        if (!mask.isIdentity())
+            throw new IllegalArgumentException(mask.toString());
+    }
+
+    @Override
+    public int getKeysetSize() {
+        return this.memory.size();
+    }
+
+    @Override
+    public Iterable<Tuple> getSignatures() {
+        return this.memory.keySet();
+    }
+
+    @Override
+    public Collection<Tuple> get(final ITuple signature) {
+        if (this.memory.getTuplesAtInfinity().contains(signature)) {
+            return Collections.singleton(signature.toImmutable());
+        } else {
+            return null;
+        }
+    }
+
+    @Override
+    public Map<Tuple, Timeline<Timestamp>> getWithTimeline(final ITuple signature) {
+        final Timeline<Timestamp> value = this.memory.get(signature);
+        if (value != null) {
+            return Collections.singletonMap(signature.toImmutable(), value);
+        } else {
+            return null;
+        }
+    }
+
+    @Override
+    public Diff<Timestamp> removeWithTimestamp(final Tuple tuple, final Tuple signature, final Timestamp timestamp) {
+        try {
+            return this.memory.remove(tuple, timestamp);
+        } catch (final IllegalStateException e) {
+            throw raiseDuplicateDeletion(tuple);
+        }
+    }
+
+    @Override
+    public Diff<Timestamp> addWithTimestamp(final Tuple tuple, final Tuple signature, final Timestamp timestamp) {
+        return this.memory.put(tuple, timestamp);
+    }
+
+    @Override
+    public boolean isPresentAtInfinity(final ITuple signature) {
+        return this.memory.isPresentAtInfinity(signature.toImmutable());
+    }
+
+    @Override
+    public Set<Tuple> getResumableSignatures() {
+        if (this.memory.getResumableTimestamp() != null) {
+            return this.memory.getResumableTuples();
+        } else {
+            return Collections.emptySet();
+        }
+    }
+
+    @Override
+    public Map<Tuple, Map<Tuple, Diff<Timestamp>>> resumeAt(final Timestamp timestamp) {
+        final Map<Tuple, Diff<Timestamp>> diffMap = this.memory.resumeAt(timestamp);
+        final Map<Tuple, Map<Tuple, Diff<Timestamp>>> result = CollectionsFactory.createMap();
+        for (final Entry<Tuple, Diff<Timestamp>> entry : diffMap.entrySet()) {
+            result.put(entry.getKey(), Collections.singletonMap(entry.getKey(), entry.getValue()));
+        }
+        return result;
+    }
+
+}