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/*******************************************************************************
* Copyright (c) 2020, 2021 THALES GLOBAL SERVICES.
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* Obeo - initial API and implementation
*******************************************************************************/
package org.eclipse.sirius.diagram.sequence.business.internal.util;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import java.util.concurrent.ConcurrentHashMap;
import org.eclipse.gmf.runtime.notation.View;
import org.eclipse.sirius.diagram.sequence.business.api.util.Range;
import org.eclipse.sirius.diagram.sequence.business.internal.elements.AbstractFrame;
import org.eclipse.sirius.diagram.sequence.business.internal.elements.AbstractNodeEvent;
import org.eclipse.sirius.diagram.sequence.business.internal.elements.CombinedFragment;
import org.eclipse.sirius.diagram.sequence.business.internal.elements.ISequenceEvent;
import org.eclipse.sirius.diagram.sequence.business.internal.elements.Lifeline;
import org.eclipse.sirius.diagram.sequence.business.internal.elements.Message;
import org.eclipse.sirius.diagram.sequence.business.internal.elements.Operand;
import org.eclipse.sirius.diagram.sequence.ordering.SingleEventEnd;
import org.eclipse.sirius.ext.base.Option;
/**
* Sequence cache helper.
*
* @author nlepine
*
*/
public final class CacheHelper {
private static boolean structuralCacheEnabled;
private static boolean verticalRangeCacheEnabled;
private static Map<AbstractFrame, Collection<Lifeline>> coverageCache = new ConcurrentHashMap<>();
private static ConcurrentHashMap<ISequenceEvent, Collection<ISequenceEvent>> subEventsCache = new ConcurrentHashMap<>();
private static ConcurrentHashMap<View, Range> viewToRangeCache = new ConcurrentHashMap<>();
private static ConcurrentHashMap<ISequenceEvent, Message> startCompoundMessageCache = new ConcurrentHashMap<>();
private static ConcurrentHashMap<ISequenceEvent, Message> endCompoundMessageCache = new ConcurrentHashMap<>();
private static ConcurrentHashMap<AbstractNodeEvent, ISequenceEvent> nodeEventToHierarchicalParentCache = new ConcurrentHashMap<>();
private static ConcurrentHashMap<ISequenceEvent, Option<Operand>> eventToParentOperandCache = new ConcurrentHashMap<>();
private static ConcurrentHashMap<ISequenceEvent, ISequenceEvent> eventToParentEventCache = new ConcurrentHashMap<>();
private static ConcurrentHashMap<SingleEventEnd, Optional<ISequenceEvent>> eventEndToISequenceEventCache = new ConcurrentHashMap<>();
private static ConcurrentHashMap<CombinedFragment, List<Operand>> combinedFragmentToOperandsCache = new ConcurrentHashMap<>();
private static ConcurrentHashMap<Operand, CombinedFragment> operandToCombinedFragmentCache = new ConcurrentHashMap<>();
/**
* Avoid instantiation.
*/
private CacheHelper() {
// Do nothing.
}
/**
* Return true if the structural caches are enabled.
*
* @return true if the structural caches are enabled.
*/
public static boolean isStructuralCacheEnabled() {
return structuralCacheEnabled;
}
/**
* Set if the structural cache cache is enabled.
*
* @param enabled
* boolean
*/
public static void setStructuralCacheEnabled(boolean enabled) {
CacheHelper.structuralCacheEnabled = enabled;
}
/**
* Return true if the vertical range cache is enabled.
*
* @return true if the vertical range cache is enabled.
*/
public static boolean isVerticalRangeCacheEnabled() {
return verticalRangeCacheEnabled;
}
/**
* Set if vertical range is enabled.
*
* @param enabled
* boolean
*/
public static void setVerticalRangeCacheEnabled(boolean enabled) {
CacheHelper.verticalRangeCacheEnabled = enabled;
}
/**
* Clear and disable all caches.
*/
public static void clearCaches() {
// Structural caches
coverageCache.clear();
startCompoundMessageCache.clear();
endCompoundMessageCache.clear();
nodeEventToHierarchicalParentCache.clear();
eventEndToISequenceEventCache.clear();
combinedFragmentToOperandsCache.clear();
operandToCombinedFragmentCache.clear();
clearRangeDependantCaches();
}
/**
* Clear and disable range dependant caches.
*/
public static void clearRangeDependantCaches() {
// Range dependant cache
subEventsCache.clear();
eventToParentOperandCache.clear();
eventToParentEventCache.clear();
viewToRangeCache.clear();
}
/**
* Get AbstractFrame.coveredCache.
*
* @return Map<AbstractFrame, Collection<Lifeline>>
*/
public static Map<AbstractFrame, Collection<Lifeline>> getCoverageCache() {
return coverageCache;
}
/**
* Get subEvents cache.
*
* @return the subEventsCache
*/
public static ConcurrentHashMap<ISequenceEvent, Collection<ISequenceEvent>> getSubEventsCache() {
return subEventsCache;
}
/**
* Get view to range cache.
*
* @return the viewToRangecache
*/
public static Map<View, Range> getViewToRangeCache() {
return viewToRangeCache;
}
/**
* Get start message cache.
*
* @return the cache
*/
public static ConcurrentHashMap<ISequenceEvent, Message> getStartCompoundMessageCache() {
return startCompoundMessageCache;
}
/**
* Get end message cache.
*
* @return the cache
*/
public static ConcurrentHashMap<ISequenceEvent, Message> getEndCompoundMessageCache() {
return endCompoundMessageCache;
}
/**
* Get hierarchical parent cache.
*
* @return the cache
*/
public static ConcurrentHashMap<AbstractNodeEvent, ISequenceEvent> getAbstractNodeEventToHierarchicalParentCache() {
return nodeEventToHierarchicalParentCache;
}
/**
* Get parent operand cache.
*
* @return the cache
*/
public static ConcurrentHashMap<ISequenceEvent, Option<Operand>> getEventToParentOperandCache() {
return eventToParentOperandCache;
}
/**
* Get parent event cache.
*
* @return the cache
*/
public static ConcurrentHashMap<ISequenceEvent, ISequenceEvent> getEventToParentEventCache() {
return eventToParentEventCache;
}
/**
* Get end to sequence event cache.
*
* @return the cache
*/
public static ConcurrentHashMap<SingleEventEnd, Optional<ISequenceEvent>> getEventEndToISequenceEventCache() {
return eventEndToISequenceEventCache;
}
/**
* Get combined fragment cache.
*
* @return the combinedFragmentToOperands cache
*/
public static ConcurrentHashMap<CombinedFragment, List<Operand>> getCombinedFragmentToOperandsCache() {
return combinedFragmentToOperandsCache;
}
/**
* Get operand cache.
*
* @return the operandToCombinedFragment cache
*/
public static ConcurrentHashMap<Operand, CombinedFragment> getOperandToCombinedFragmentCache() {
return operandToCombinedFragmentCache;
}
}
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