From e78b020cb5d0d3e601a99da51e66d49ef62e93aa Mon Sep 17 00:00:00 2001
From: Jim Blake <jeb228@cornell.edu>
Date: Tue, 10 Feb 2015 16:36:35 -0500
Subject: [PATCH] VIVO-948 remove the sdb/metadata models.

---
 .../webapp/migration/Release18Migrator.java   |  1 +
 .../RemoveObsoleteMetadataGraphs.java         | 67 +++++++++++++++++++
 2 files changed, 68 insertions(+)
 create mode 100644 webapp/src/edu/cornell/mannlib/vitro/webapp/migration/RemoveObsoleteMetadataGraphs.java

diff --git a/webapp/src/edu/cornell/mannlib/vitro/webapp/migration/Release18Migrator.java b/webapp/src/edu/cornell/mannlib/vitro/webapp/migration/Release18Migrator.java
index 7707fcaac..e402e3846 100644
--- a/webapp/src/edu/cornell/mannlib/vitro/webapp/migration/Release18Migrator.java
+++ b/webapp/src/edu/cornell/mannlib/vitro/webapp/migration/Release18Migrator.java
@@ -16,6 +16,7 @@ public class Release18Migrator implements ServletContextListener {
 		ServletContext ctx = sce.getServletContext();
 
 		new FauxPropertiesUpdater(ctx, this).migrate();
+		new RemoveObsoleteMetadataGraphs(ctx, this).migrate();
 	}
 
 	@Override
diff --git a/webapp/src/edu/cornell/mannlib/vitro/webapp/migration/RemoveObsoleteMetadataGraphs.java b/webapp/src/edu/cornell/mannlib/vitro/webapp/migration/RemoveObsoleteMetadataGraphs.java
new file mode 100644
index 000000000..41714d458
--- /dev/null
+++ b/webapp/src/edu/cornell/mannlib/vitro/webapp/migration/RemoveObsoleteMetadataGraphs.java
@@ -0,0 +1,67 @@
+/* $This file is distributed under the terms of the license in /doc/license.txt$ */
+
+package edu.cornell.mannlib.vitro.webapp.migration;
+
+import static edu.cornell.mannlib.vitro.webapp.modelaccess.ModelAccess.WhichService.CONFIGURATION;
+import static edu.cornell.mannlib.vitro.webapp.modelaccess.ModelAccess.WhichService.CONTENT;
+
+import javax.servlet.ServletContext;
+import javax.servlet.ServletContextListener;
+
+import org.apache.log4j.Level;
+import org.apache.log4j.Logger;
+
+import edu.cornell.mannlib.vitro.webapp.modelaccess.ModelAccess;
+import edu.cornell.mannlib.vitro.webapp.modelaccess.ModelAccess.WhichService;
+import edu.cornell.mannlib.vitro.webapp.rdfservice.impl.jena.RDFServiceJena;
+import edu.cornell.mannlib.vitro.webapp.startup.StartupStatus;
+
+/**
+ * The graphs http://vitro.mannlib.cornell.edu/ns/vitro/sdb/metadata were used
+ * in Content models through release 1.7 and in Configuration models in release
+ * 1.7
+ * 
+ * In release 1.8, they area no longer used, and produce annoying warning
+ * messages.
+ */
+public class RemoveObsoleteMetadataGraphs {
+	private static final String OBSOLETE_METADATA_MODEL = "http://vitro.mannlib.cornell.edu/ns/vitro/sdb/metadata";
+
+	private final ServletContext ctx;
+	private final ServletContextListener parent;
+
+	public RemoveObsoleteMetadataGraphs(ServletContext ctx,
+			ServletContextListener parent) {
+		this.ctx = ctx;
+		this.parent = parent;
+	}
+
+	public void migrate() {
+		StartupStatus ss = StartupStatus.getBean(ctx);
+		removeMetadataModel(ctx, ss, CONTENT);
+		removeMetadataModel(ctx, ss, CONFIGURATION);
+	}
+
+	/**
+	 * Ordinarily, RDFServiceJena will issue a warning when a single triple is
+	 * removed from a blank node. In this case, however, that's exactly what we
+	 * want, so stifle those warnings while we remove these models.
+	 */
+	private void removeMetadataModel(ServletContext ctx, StartupStatus ss,
+			WhichService which) {
+		Logger rdfServiceLogger = Logger.getLogger(RDFServiceJena.class);
+		Level rdfServiceLogLevel = rdfServiceLogger.getLevel();
+
+		rdfServiceLogger.setLevel(Level.ERROR);
+		try {
+			ModelAccess.on(ctx).getModelMaker(which)
+					.removeModel(OBSOLETE_METADATA_MODEL);
+		} catch (Exception e) {
+			ss.warning(parent, "Failed to remove '" + OBSOLETE_METADATA_MODEL
+					+ "' from " + which, e);
+		} finally {
+			rdfServiceLogger.setLevel(rdfServiceLogLevel);
+		}
+	}
+
+}