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/*******************************************************************************
* 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.Iterator;
import java.util.Map;
import java.util.Map.Entry;
import tools.refinery.viatra.runtime.matchers.memories.MaskedTupleMemory;
import tools.refinery.viatra.runtime.matchers.tuple.Tuple;
import tools.refinery.viatra.runtime.matchers.tuple.TupleMask;
import tools.refinery.viatra.runtime.matchers.util.Direction;
import tools.refinery.viatra.runtime.matchers.util.Signed;
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;
/**
* Common parts of timely nullary and timely identity implementations.
*
* @noextend This class is not intended to be subclassed by clients.
* @author Tamas Szabo
* @since 2.3
*/
abstract class AbstractTimelyTrivialMaskedMemory<Timestamp extends Comparable<Timestamp>> extends MaskedTupleMemory<Timestamp> {
protected final TimelyMemory<Timestamp> memory;
protected AbstractTimelyTrivialMaskedMemory(final TupleMask mask, final Object owner, final boolean isLazy) {
super(mask, owner);
this.memory = new TimelyMemory<Timestamp>(isLazy);
}
@Override
public void initializeWith(final MaskedTupleMemory<Timestamp> other, final Timestamp defaultValue) {
final Iterable<Tuple> signatures = other.getSignatures();
for (final Tuple signature : signatures) {
if (other.isTimely()) {
final Map<Tuple, Timeline<Timestamp>> tupleMap = other.getWithTimeline(signature);
for (final Entry<Tuple, Timeline<Timestamp>> entry : tupleMap.entrySet()) {
for (final Signed<Timestamp> signed : entry.getValue().asChangeSequence()) {
if (signed.getDirection() == Direction.DELETE) {
this.removeWithTimestamp(entry.getKey(), signed.getPayload());
} else {
this.addWithTimestamp(entry.getKey(), signed.getPayload());
}
}
}
} else {
final Collection<Tuple> tuples = other.get(signature);
for (final Tuple tuple : tuples) {
this.removeWithTimestamp(tuple, defaultValue);
}
}
}
}
@Override
public void clear() {
this.memory.clear();
}
@Override
public int getTotalSize() {
return this.memory.size();
}
@Override
public Iterator<Tuple> iterator() {
return this.memory.keySet().iterator();
}
@Override
public Diff<Timestamp> removeWithTimestamp(final Tuple tuple, final Timestamp timestamp) {
return removeWithTimestamp(tuple, null, timestamp);
}
@Override
public Diff<Timestamp> addWithTimestamp(final Tuple tuple, final Timestamp timestamp) {
return addWithTimestamp(tuple, null, timestamp);
}
@Override
public boolean isTimely() {
return true;
}
@Override
public Timestamp getResumableTimestamp() {
return this.memory.getResumableTimestamp();
}
}
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