1 files changed, 67 insertions, 0 deletions
diff --git a/src/main/java/org/cristalise/kernel/utils/StateMachineCache.java b/src/main/java/org/cristalise/kernel/utils/StateMachineCache.java
new file mode 100644
index 0000000..5aa87b9
--- /dev/null
+++ b/src/main/java/org/cristalise/kernel/utils/StateMachineCache.java
@@ -0,0 +1,67 @@
+/**
+ * This file is part of the CRISTAL-iSE kernel.
+ * Copyright (c) 2001-2014 The CRISTAL Consortium. All rights reserved.
+ *
+ * This library is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published
+ * by the Free Software Foundation; either version 3 of the License, or (at
+ * your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; with out even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+ * License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library; if not, write to the Free Software Foundation,
+ * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ *
+ * http://www.fsf.org/licensing/licenses/lgpl.html
+ */
+/**
+ *
+ */
+package org.cristalise.kernel.utils;
+
+import org.cristalise.kernel.common.InvalidDataException;
+import org.cristalise.kernel.common.ObjectNotFoundException;
+import org.cristalise.kernel.common.PersistencyException;
+import org.cristalise.kernel.entity.proxy.ItemProxy;
+import org.cristalise.kernel.lifecycle.instance.stateMachine.StateMachine;
+import org.cristalise.kernel.persistency.ClusterStorage;
+import org.cristalise.kernel.persistency.outcome.Viewpoint;
+import org.cristalise.kernel.process.Gateway;
+
+
+public class StateMachineCache extends DescriptionObjectCache<StateMachine> {
+
+	
+	@Override
+	public String getDefRoot() {
+		return "/desc/StateMachine";
+	}
+	
+	@Override
+	public StateMachine loadObject(String name, int version, ItemProxy proxy) throws ObjectNotFoundException, InvalidDataException {
+		StateMachine thisStateMachine;
+        Viewpoint smView = (Viewpoint)proxy.getObject(ClusterStorage.VIEWPOINT + "/StateMachine/" + version);
+        String marshalledSM;
+		try {
+			marshalledSM = smView.getOutcome().getData();
+		} catch (PersistencyException ex) {
+			Logger.error(ex);
+			throw new ObjectNotFoundException("Problem loading State Machine "+name+" v"+version+": "+ex.getMessage());
+		}
+		try {
+			thisStateMachine = (StateMachine)Gateway.getMarshaller().unmarshall(marshalledSM);
+			thisStateMachine.validate();
+		} catch (Exception ex) {
+			Logger.error(ex);
+			throw new InvalidDataException("Could not unmarshall State Machine '"+name+"' v"+version+": "+ex.getMessage());
+		}
+		thisStateMachine.setName(name);
+		thisStateMachine.setVersion(version);
+        return thisStateMachine;
+	}
+
+}
+\ No newline at end of file