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/*******************************************************************************
* Copyright (c) 2012 Boeing.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Boeing - initial API and implementation
*******************************************************************************/
package org.eclipse.osee.orcs.core.internal.relation.order;
import static org.eclipse.osee.framework.core.enums.RelationSorter.USER_DEFINED;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.concurrent.ConcurrentHashMap;
import org.eclipse.osee.framework.core.data.IRelationType;
import org.eclipse.osee.framework.core.data.RelationTypeSide;
import org.eclipse.osee.framework.core.enums.RelationSorter;
import org.eclipse.osee.framework.jdk.core.type.Identifiable;
import org.eclipse.osee.framework.jdk.core.type.OseeCoreException;
import org.eclipse.osee.framework.jdk.core.util.Conditions;
import org.eclipse.osee.orcs.core.internal.relation.sorter.Sorter;
import org.eclipse.osee.orcs.core.internal.relation.sorter.SorterProvider;
/**
* @author Roberto E. Escobar
*/
public class OrderManager implements HasOrderData {
private static final OrderEntryComparator ENTRY_COMPARATOR = new OrderEntryComparator();
private final Map<RelationTypeSide, OrderData> orderDataMap = new ConcurrentHashMap<>();
private final OrderAccessor accessor;
private final SorterProvider sorterProvider;
public OrderManager(SorterProvider sorterProvider, OrderAccessor accessor) {
super();
this.sorterProvider = sorterProvider;
this.accessor = accessor;
}
@Override
public void add(RelationTypeSide typeAndSide, OrderData data) throws OseeCoreException {
Conditions.checkNotNull(typeAndSide, "type and side key");
Conditions.checkNotNull(data, "orderData");
orderDataMap.put(typeAndSide, data);
}
@Override
public void remove(RelationTypeSide typeAndSide) throws OseeCoreException {
Conditions.checkNotNull(typeAndSide, "type and side key");
orderDataMap.remove(typeAndSide);
}
@Override
public Iterator<Entry<RelationTypeSide, OrderData>> iterator() {
List<Entry<RelationTypeSide, OrderData>> entries =
new ArrayList<Entry<RelationTypeSide, OrderData>>(orderDataMap.entrySet());
Collections.sort(entries, ENTRY_COMPARATOR);
return entries.iterator();
}
@Override
public void clear() {
orderDataMap.clear();
}
@Override
public boolean isEmpty() {
return orderDataMap.isEmpty();
}
@Override
public int size() {
return orderDataMap.size();
}
public void load() throws OseeCoreException {
accessor.load(this);
}
public void store() throws OseeCoreException {
accessor.store(this, OrderChange.Forced);
}
public Collection<RelationTypeSide> getExistingTypes() {
return orderDataMap.keySet();
}
private OrderData getOrderData(RelationTypeSide typeAndSide) throws OseeCoreException {
Conditions.checkNotNull(typeAndSide, "type and side key");
return orderDataMap.get(typeAndSide);
}
public List<String> getOrderIds(RelationTypeSide typeAndSide) throws OseeCoreException {
Conditions.checkNotNull(typeAndSide, "type and side key");
OrderData data = orderDataMap.get(typeAndSide);
return data != null ? data.getOrderIds() : Collections.<String> emptyList();
}
public RelationSorter getSorterId(RelationTypeSide typeAndSide) throws OseeCoreException {
Conditions.checkNotNull(typeAndSide, "type and side key");
OrderData data = orderDataMap.get(typeAndSide);
RelationSorter sorterId = null;
if (data != null) {
sorterId = data.getSorterId();
} else {
sorterId = getDefaultSorterId(typeAndSide);
}
return sorterId;
}
private RelationSorter getDefaultSorterId(IRelationType type) throws OseeCoreException {
return sorterProvider.getDefaultSorterId(type);
}
public void sort(RelationTypeSide typeAndSide, List<? extends Identifiable<String>> listToOrder) throws OseeCoreException {
if (listToOrder.size() > 1) {
RelationSorter sorterId = getSorterId(typeAndSide);
List<String> relativeOrder = getOrderIds(typeAndSide);
Sorter order = sorterProvider.getSorter(sorterId);
order.sort(listToOrder, relativeOrder);
}
}
public void setOrder(RelationTypeSide typeAndSide, List<? extends Identifiable<String>> relativeSequence) throws OseeCoreException {
RelationSorter sorterId = getSorterId(typeAndSide);
setOrder(typeAndSide, sorterId, relativeSequence);
}
public void setOrder(RelationTypeSide typeAndSide, RelationSorter sorterId, List<? extends Identifiable<String>> relativeSequence) throws OseeCoreException {
List<String> sequence;
if (!relativeSequence.isEmpty()) {
sequence = new ArrayList<>();
for (Identifiable<String> item : relativeSequence) {
sequence.add(item.getGuid());
}
} else {
sequence = Collections.emptyList();
}
setAndStoreOrder(typeAndSide, sorterId, sequence);
}
private void setAndStoreOrder(RelationTypeSide typeAndSide, RelationSorter requestedSorterId, List<String> relativeSequence) throws OseeCoreException {
boolean isDifferentSorterId = isDifferentSorterId(typeAndSide, requestedSorterId);
boolean changingRelatives = isRelativeOrderChange(typeAndSide, requestedSorterId, relativeSequence);
OrderChange changeType = OrderChange.NoChange;
if (isDifferentSorterId || changingRelatives) {
if (isDifferentSorterId && isSetToDefaultSorter(typeAndSide, requestedSorterId)) {
remove(typeAndSide);
changeType = OrderChange.SetToDefault;
} else {
OrderData orderData = getOrderData(typeAndSide);
if (orderData == null) {
orderData = new OrderData(requestedSorterId, relativeSequence);
add(typeAndSide, orderData);
} else {
orderData.setSorterId(requestedSorterId);
orderData.setOrderIds(relativeSequence);
}
changeType = OrderChange.OrderRequest;
}
}
accessor.store(this, changeType);
}
private boolean isDifferentSorterId(RelationTypeSide typeAndSide, RelationSorter newSorterId) throws OseeCoreException {
RelationSorter currentSorter = getSorterId(typeAndSide);
return !currentSorter.equals(newSorterId);
}
private boolean isSetToDefaultSorter(RelationTypeSide typeAndSide, RelationSorter sorterId) throws OseeCoreException {
RelationSorter defaultSorterId = getDefaultSorterId(typeAndSide);
return defaultSorterId.equals(sorterId);
}
private boolean isRelativeOrderChange(RelationTypeSide typeAndSide, RelationSorter sorterId, List<String> relativeSequence) throws OseeCoreException {
boolean result = false;
if (sorterId.equals(USER_DEFINED)) {
List<String> currentOrder = getOrderIds(typeAndSide);
result = !areSame(currentOrder, relativeSequence);
}
return result;
}
private boolean areSame(List<String> list1, List<String> list2) {
boolean result = list1.size() == list2.size();
if (result) {
for (int index = 0; index < list1.size(); index++) {
String obj1 = list1.get(index);
String obj2 = list2.get(index);
if (!obj1.equals(obj2)) {
result = false;
break;
}
}
}
return result;
}
}
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