Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.event / src / org / simantics / event / view / handler / GetEventLogsQuery.java

diff --git a/bundles/org.simantics.event/src/org/simantics/event/view/handler/GetEventLogsQuery.java b/bundles/org.simantics.event/src/org/simantics/event/view/handler/GetEventLogsQuery.java
new file mode 100644 (file)
index 0000000..40e1be0
--- /dev/null
+++ b/bundles/org.simantics.event/src/org/simantics/event/view/handler/GetEventLogsQuery.java
@@ -0,0 +1,54 @@
+/*******************************************************************************\r
+ * Copyright (c) 2007, 2011 Association for Decentralized Information Management in\r
+ * Industry THTH ry.\r
+ * All rights reserved. This program and the accompanying materials\r
+ * are made available under the terms of the Eclipse Public License v1.0\r
+ * which accompanies this distribution, and is available at\r
+ * http://www.eclipse.org/legal/epl-v10.html\r
+ *\r
+ * Contributors:\r
+ *     VTT Technical Research Centre of Finland - initial API and implementation\r
+ *******************************************************************************/\r
+package org.simantics.event.view.handler;\r
+\r
+import java.util.ArrayList;\r
+import java.util.Collection;\r
+import java.util.List;\r
+\r
+import org.simantics.db.ReadGraph;\r
+import org.simantics.db.Resource;\r
+import org.simantics.db.common.request.UniqueRead;\r
+import org.simantics.db.exception.DatabaseException;\r
+import org.simantics.event.ontology.EventResource;\r
+import org.simantics.layer0.Layer0;\r
+\r
+/**\r
+ * Given a list of events, return respective eventlogs.\r
+ */\r
+public class GetEventLogsQuery extends UniqueRead<Collection<Resource>> {\r
+\r
+       Collection<Resource> events;\r
+       \r
+       public GetEventLogsQuery(Collection<Resource> events) {\r
+               this.events = events;\r
+       }\r
+\r
+       @Override\r
+       public Collection<Resource> perform(ReadGraph graph) throws DatabaseException {\r
+               Layer0 L0 = Layer0.getInstance(graph);\r
+               EventResource EVENT = EventResource.getInstance(graph);\r
+               List<Resource> eventlogs = new ArrayList<Resource>(1);\r
+               for (Resource event : events) {\r
+                       Resource eventslice = graph.getPossibleObject(event, L0.PartOf);\r
+                       if (eventslice==null || !graph.isInstanceOf(eventslice, EVENT.EventSlice)) continue;\r
+                       Resource eventlog = graph.getPossibleObject(eventslice, L0.PartOf);\r
+                       if (eventlog==null || !graph.isInstanceOf(eventlog, EVENT.EventLog)) continue;\r
+                       if (!eventlogs.contains( event )) {\r
+                               eventlogs.add( eventlog );\r
+                       }\r
+               }\r
+               return eventlogs;\r
+       }\r
+       \r
+\r
+}\r