Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.db.layer0 / src / org / simantics / db / layer0 / migration / MigrationSequence.java

diff --git a/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/migration/MigrationSequence.java b/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/migration/MigrationSequence.java
new file mode 100644 (file)
index 0000000..8f7beb1
--- /dev/null
+++ b/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/migration/MigrationSequence.java
@@ -0,0 +1,53 @@
+/*******************************************************************************\r
+ * Copyright (c) 2012 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.db.layer0.migration;\r
+\r
+import java.util.ArrayList;\r
+import java.util.List;\r
+\r
+import org.eclipse.core.runtime.IProgressMonitor;\r
+import org.simantics.db.ReadGraph;\r
+import org.simantics.db.Resource;\r
+import org.simantics.db.Session;\r
+import org.simantics.db.common.utils.ListUtils;\r
+import org.simantics.db.exception.DatabaseException;\r
+import org.simantics.utils.logging.TimeLogger;\r
+\r
+public class MigrationSequence implements MigrationStep {\r
+       \r
+       final List<MigrationStep> steps;\r
+       \r
+       public MigrationSequence(ReadGraph graph, Resource sequence) throws DatabaseException {\r
+               steps = new ArrayList<MigrationStep>();\r
+               for(Resource step : ListUtils.toList(graph, sequence)) {\r
+                       MigrationStep ms = graph.adapt(step, MigrationStep.class);\r
+                       steps.add(ms);\r
+               }\r
+       }\r
+\r
+       @Override\r
+       public void applyTo(IProgressMonitor monitor, Session session, MigrationState state) throws DatabaseException {\r
+               TimeLogger.resetTimeAndLog(getClass(), "Running migration sequence");\r
+               for(MigrationStep step : steps) {\r
+                       if(monitor.isCanceled()) return;\r
+                       TimeLogger.log(getClass(), "Running migration step: " + step.getClass() + " (" + step + ")");\r
+                       step.applyTo(monitor, session, state);\r
+                       if (monitor.isCanceled()) {\r
+                               TimeLogger.log(getClass(), "Migration cancelled during step: " + step.getClass() + " (" + step + ")");\r
+                               return;\r
+                       }\r
+                       monitor.subTask("");\r
+                       TimeLogger.log(getClass(), "Completed migration step: " + step.getClass() + " (" + step + ")");\r
+               }\r
+       }\r
+\r
+}\r