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/*
* Created on Mar 24, 2010
*
* PLACE_YOUR_DISTRIBUTION_STATEMENT_RIGHT_HERE
*/
package org.eclipse.osee.framework.skynet.core.event2;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
import java.util.concurrent.CopyOnWriteArrayList;
import org.eclipse.osee.framework.skynet.core.event.IAccessControlEventListener;
import org.eclipse.osee.framework.skynet.core.event.IBroadcastEventListener;
import org.eclipse.osee.framework.skynet.core.event.IEventListener;
import org.eclipse.osee.framework.skynet.core.event.IRemoteEventManagerEventListener;
import org.eclipse.osee.framework.skynet.core.event.OseeEventManager;
import org.eclipse.osee.framework.skynet.core.event.RemoteEventServiceEventType;
import org.eclipse.osee.framework.skynet.core.event.Sender;
import org.eclipse.osee.framework.skynet.core.event2.artifact.EventBasicGuidArtifact;
import org.eclipse.osee.framework.skynet.core.event2.artifact.EventBasicGuidRelation;
import org.eclipse.osee.framework.skynet.core.event2.artifact.IArtifactListener;
import org.eclipse.osee.framework.skynet.core.event2.filter.FilteredEventListener;
import org.eclipse.osee.framework.skynet.core.event2.filter.IEventFilter;
/**
* @author Donald G. Dunne
*/
public class FrameworkEventManager {
private static final List<IEventListener> priorityListeners = new CopyOnWriteArrayList<IEventListener>();
private static final List<IEventListener> listeners = new CopyOnWriteArrayList<IEventListener>();
private static List<EventBasicGuidRelation> EMPTY_EVENT_RELATIONS = new ArrayList<EventBasicGuidRelation>();
public static void addListener(IEventListener listener) {
if (listener == null) {
throw new IllegalArgumentException("listener can not be null");
}
if (!listeners.contains(listener)) {
listeners.add(listener);
}
}
/**
* Add a priority listener. This should only be done for caches where they need to be updated before all other
* listeners are called.
*/
public static void addPriorityListener(IEventListener listener) {
if (listener == null) {
throw new IllegalArgumentException("listener can not be null");
}
if (!priorityListeners.contains(listener)) {
priorityListeners.add(listener);
}
OseeEventManager.eventLog("IEM1: addPriorityListener (" + priorityListeners.size() + ") " + listener);
}
public static void removeListener(IEventListener listener) {
listeners.remove(listener);
priorityListeners.remove(listener);
}
public static void removeAllListeners() {
listeners.clear();
priorityListeners.clear();
}
public static int getNumberOfListeners() {
return listeners.size();
}
public static boolean isHandledBy(IEventListener event) {
return event instanceof IArtifactListener || (event instanceof FilteredEventListener && ((FilteredEventListener) event).isOfType(IArtifactListener.class));
}
public static void processBranchEvent(Sender sender, BranchEvent branchEvent) {
OseeEventManager.eventLog(String.format("FEM: processBranchEvent [%s]", branchEvent));
for (IEventListener listener : priorityListeners) {
processBranchEventListener(listener, sender, branchEvent);
}
for (IEventListener listener : listeners) {
processBranchEventListener(listener, sender, branchEvent);
}
}
private static void processBranchEventListener(IEventListener listener, Sender sender, BranchEvent branchEvent) {
IBranchListener branchListner = null;
Collection<IEventFilter> eventFilters = null;
if (listener instanceof IBranchListener) {
branchListner = (IBranchListener) listener;
eventFilters = Collections.emptyList();
} else if (listener instanceof FilteredEventListener && ((FilteredEventListener) listener).getEventListener() instanceof IBranchListener) {
branchListner = (IBranchListener) ((FilteredEventListener) listener).getEventListener();
eventFilters = ((FilteredEventListener) listener).getEventFilters();
}
if (branchListner != null) {
// TODO handle filters first
((IBranchListener) listener).handleBranchEvent(sender, branchEvent);
}
}
public static void processEventArtifactsAndRelations(Sender sender, PersistEvent transEvent) {
processEventArtifactsAndRelations(sender, transEvent.getArtifacts(), transEvent.getRelations());
}
public static void processEventArtifactsAndRelations(Sender sender, Collection<EventBasicGuidArtifact> eventArtifacts) {
processEventArtifactsAndRelations(sender, eventArtifacts, EMPTY_EVENT_RELATIONS);
}
public static void processEventArtifactsAndRelations(Sender sender, Collection<EventBasicGuidArtifact> eventArtifacts, Collection<EventBasicGuidRelation> eventRelations) {
OseeEventManager.eventLog(String.format("FEM: processArtsAndRels arts[%s] rels[%s]", eventArtifacts,
eventRelations));
for (IEventListener listener : priorityListeners) {
processEventArtifactsAndRelationsListener(listener, sender, eventArtifacts, eventRelations);
}
for (IEventListener listener : listeners) {
processEventArtifactsAndRelationsListener(listener, sender, eventArtifacts, eventRelations);
}
}
private static void processEventArtifactsAndRelationsListener(IEventListener listener, Sender sender, Collection<EventBasicGuidArtifact> eventArtifacts, Collection<EventBasicGuidRelation> eventRelations) {
IArtifactListener artifactListener = null;
Collection<IEventFilter> eventFilters = null;
if (listener instanceof IArtifactListener) {
artifactListener = (IArtifactListener) listener;
eventFilters = Collections.emptyList();
} else if (listener instanceof FilteredEventListener && ((FilteredEventListener) listener).getEventListener() instanceof IArtifactListener) {
artifactListener = (IArtifactListener) ((FilteredEventListener) listener).getEventListener();
eventFilters = ((FilteredEventListener) listener).getEventFilters();
}
if (artifactListener != null) {
// TODO handle filters first
artifactListener.handleArtifactModified(eventArtifacts, eventRelations, sender);
}
}
public static void processAccessControlEvent(Sender sender, AccessControlEvent accessControlEvent) {
OseeEventManager.eventLog(String.format("FEM: processAccessControlEvent [%s]", accessControlEvent));
for (IEventListener listener : priorityListeners) {
if (listener instanceof IAccessControlEventListener) {
((IAccessControlEventListener) listener).handleAccessControlArtifactsEvent(sender, accessControlEvent);
}
}
for (IEventListener listener : listeners) {
if (listener instanceof IAccessControlEventListener) {
((IAccessControlEventListener) listener).handleAccessControlArtifactsEvent(sender, accessControlEvent);
}
}
}
public static void processEventBroadcastEvent(Sender sender, BroadcastEvent broadcastEvent) {
OseeEventManager.eventLog(String.format("FEM: processEventBroadcastEvent [%s]", broadcastEvent));
if (broadcastEvent.getUsers().size() == 0) return;
for (IEventListener listener : priorityListeners) {
if (listener instanceof IBroadcastEventListener) {
((IBroadcastEventListener) listener).handleBroadcastEvent(sender, broadcastEvent);
}
}
for (IEventListener listener : listeners) {
if (listener instanceof IBroadcastEventListener) {
((IBroadcastEventListener) listener).handleBroadcastEvent(sender, broadcastEvent);
}
}
}
public static void processRemoteEventManagerEvent(Sender sender, RemoteEventServiceEventType remoteEventServiceEvent) {
OseeEventManager.eventLog(String.format("FEM: processRemoteEventManagerEvent [%s]", remoteEventServiceEvent));
for (IEventListener listener : priorityListeners) {
if (listener instanceof IRemoteEventManagerEventListener) {
((IRemoteEventManagerEventListener) listener).handleRemoteEventManagerEvent(sender, remoteEventServiceEvent);
}
}
for (IEventListener listener : listeners) {
if (listener instanceof IRemoteEventManagerEventListener) {
((IRemoteEventManagerEventListener) listener).handleRemoteEventManagerEvent(sender, remoteEventServiceEvent);
}
}
}
public static void processTransactionEvent(Sender sender, TransactionEvent transactionEvent) {
OseeEventManager.eventLog(String.format("FEM: processTransactionEvent [%s]", transactionEvent));
for (IEventListener listener : priorityListeners) {
if (listener instanceof ITransactionEventListener) {
((ITransactionEventListener) listener).handleTransactionEvent(sender, transactionEvent);
}
}
for (IEventListener listener : listeners) {
if (listener instanceof ITransactionEventListener) {
((ITransactionEventListener) listener).handleTransactionEvent(sender, transactionEvent);
}
}
}
}
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