Fixed Concurrent Updates overriding the AAI object such as Pserver

Issue-ID: AAI-3308

Signed-off-by: Niharika Sharma <niharika.sharma@amdocs.com>
Change-Id: I5f5b89d6304f382c186ae03f3f70ba60097ff6e3

3 files changed, 31 insertions, 14 deletions

diff --git a/src/main/java/org/onap/aai/dbgen/schemamod/SchemaMod.java b/src/main/java/org/onap/aai/dbgen/schemamod/SchemaMod.java
index 6e48d4b..7fbc449 100644
--- a/src/main/java/org/onap/aai/dbgen/schemamod/SchemaMod.java
+++ b/src/main/java/org/onap/aai/dbgen/schemamod/SchemaMod.java
@@ -68,23 +68,26 @@ public class SchemaMod {
 		String targetDataType = "";
 		String targetIndexInfo = "";
 		String preserveDataFlag = "";
+		String consistencyLockFlag = "";
 		String commitBlockSizeStr = "";
 		long commitBlockSize = 120000;
 
-		String usageString = "Usage: SchemaMod propertyName targetDataType targetIndexInfo preserveDataFlag [blockSize] \n";
+		String usageString = "Usage: SchemaMod propertyName targetDataType targetIndexInfo preserveDataFlag consistencyLockFlag [blockSize] \n";
 		
-		if (args.length == 4) {
+		if (args.length == 5) {
 			propName = args[0];
 			targetDataType = args[1];
 			targetIndexInfo = args[2];
 			preserveDataFlag = args[3];
+			consistencyLockFlag = args[4];
 		}
-		else if (args.length == 5) {
+		else if (args.length == 6) {
 			propName = args[0];
 			targetDataType = args[1];
 			targetIndexInfo = args[2];
 			preserveDataFlag = args[3];
-			commitBlockSizeStr = args[4];
+			consistencyLockFlag = args[4];
+			commitBlockSizeStr = args[5];
 		}
 		else {
 			String emsg = "Incorrect number of Parameters passed.  \n" + usageString;
@@ -148,7 +151,7 @@ public class SchemaMod {
         TransactionalGraphEngine engine = null;
         try {
             engine = new JanusGraphDBEngine(queryStyle, loader);
-            SchemaModInternalBatch internal = new SchemaModInternalBatch(engine, logger, propName, targetDataType, targetIndexInfo, Boolean.parseBoolean(preserveDataFlag), commitBlockSize);
+            SchemaModInternalBatch internal = new SchemaModInternalBatch(engine, logger, propName, targetDataType, targetIndexInfo, Boolean.parseBoolean(preserveDataFlag), Boolean.parseBoolean(consistencyLockFlag), commitBlockSize);
             internal.execute();
             engine.startTransaction();
             engine.tx().close();
diff --git a/src/main/java/org/onap/aai/dbgen/schemamod/SchemaModInternalBatch.java b/src/main/java/org/onap/aai/dbgen/schemamod/SchemaModInternalBatch.java
index e88e2bf..e88c261 100644
--- a/src/main/java/org/onap/aai/dbgen/schemamod/SchemaModInternalBatch.java
+++ b/src/main/java/org/onap/aai/dbgen/schemamod/SchemaModInternalBatch.java
@@ -32,6 +32,8 @@ import org.apache.tinkerpop.gremlin.structure.Edge;
 import org.apache.tinkerpop.gremlin.structure.Graph;
 import org.apache.tinkerpop.gremlin.structure.Vertex;
 import org.apache.tinkerpop.gremlin.structure.VertexProperty;
+import org.janusgraph.core.schema.ConsistencyModifier;
+import org.janusgraph.core.schema.JanusGraphIndex;
 import org.onap.aai.serialization.engines.TransactionalGraphEngine;
 import org.onap.aai.util.FormatDate;
 
@@ -48,17 +50,19 @@ public class SchemaModInternalBatch {
 	private final Class<?> type;
 	private final String indexType;
 	private final boolean preserveData;
+	private final boolean consistencyLock;
 	private final Cardinality cardinality;
 	private final long commitBlockSize;
 	private final Logger logger;
 	
 	public SchemaModInternalBatch(TransactionalGraphEngine engine, Logger logger, String propName,  
-				String type, String indexType, boolean preserveData, long commitBlockSize) {
+				String type, String indexType, boolean preserveData, boolean consistencyLock, long commitBlockSize) {
 		this.engine = engine;
 		this.propName = propName;
 		this.type = determineClass(type);
 		this.indexType = indexType;
 		this.preserveData = preserveData;
+		this.consistencyLock = consistencyLock;
 		this.cardinality = determineCardinality(type);
 		this.commitBlockSize = commitBlockSize;
 		this.logger = logger;
@@ -226,14 +230,23 @@ public class SchemaModInternalBatch {
 			// targetDataType
 			PropertyKey freshPropKey = graphMgt.makePropertyKey(propName).dataType(type)
 					.cardinality(cardinality).make();
-	
+			if (consistencyLock) {
+				logAndPrint(logger, " -- Consistency Lock is being set on the property ");
+				graphMgt.setConsistency(freshPropKey, ConsistencyModifier.LOCK);
+			}
 			// Create the appropriate index (if any)
+			JanusGraphIndex indexG = null;
 			if (indexType.equals("uniqueIndex")) {
 				String freshIndexName = propName + dteStr;
-				graphMgt.buildIndex(freshIndexName, Vertex.class).addKey(freshPropKey).unique().buildCompositeIndex();
+				indexG = graphMgt.buildIndex(freshIndexName, Vertex.class).addKey(freshPropKey).unique().buildCompositeIndex();
 			} else if (indexType.equals("index")) {
 				String freshIndexName = propName + dteStr;
-				graphMgt.buildIndex(freshIndexName, Vertex.class).addKey(freshPropKey).buildCompositeIndex();
+				indexG = graphMgt.buildIndex(freshIndexName, Vertex.class).addKey(freshPropKey).buildCompositeIndex();
+			}
+
+			if(indexG != null && consistencyLock) {
+				logAndPrint(logger, " -- Consistency Lock is being set on the index ");
+				graphMgt.setConsistency(indexG, ConsistencyModifier.LOCK);
 			}
 	
 			logAndPrint(logger, "Committing schema changes with graphMgt.commit()");
diff --git a/src/main/scripts/schemaMod.sh b/src/main/scripts/schemaMod.sh
index c7b8ce9..8e6c0bb 100644
--- a/src/main/scripts/schemaMod.sh
+++ b/src/main/scripts/schemaMod.sh
@@ -13,19 +13,20 @@
 #    just to change existing instances of the schema since schemaGenerator does not 
 #    update things - it just does the initial creation.
 #
-# To use this script, there are 4 required parameters, and one optional:
+# To use this script, there are 5 required parameters, and one optional:
 #      propertyName    -- the name of the property that you need to change either the index or dataType on
 #      targetDataType  -- whether it's changing or not, you need to give it:  String, Integer, Boolean or Long
 #      targetIndexInfo -- whether it's changing or not, you need to give it: index, noIndex or uniqueIndex
 #      preserveDataFlag -- true or false.     The only reason I can think of why you'd ever want to
 #                   set this to false would be maybe if you were changing to an incompatible dataType so didn't 
 #                   want it to try to use the old data (and fail).  But 99% of the time this will just be 'true'.
+#      consistencyLock -- true or false. Whether to enable consistency lock on the property or not
 #
 #      commitBlockSize -- OPTIONAL -- how many updates to commit at once.  
 #                  Default will be used if no value is passed.
 #
-# Ie.    schemaMod flavor-id String index true
-#   or,  schemaMod flavor-id String noIndex true 50000
+# Ie.    schemaMod flavor-id String index true true
+#   or,  schemaMod flavor-id String noIndex true true 50000
 #
 
 COMMON_ENV_PATH=$( cd "$(dirname "$0")" ; pwd -P )	
@@ -33,9 +34,9 @@ COMMON_ENV_PATH=$( cd "$(dirname "$0")" ; pwd -P )
 start_date;
 check_user;
 
-if [ "$#" -ne 4 ] && [ "$#" -ne 5 ]; then
+if [ "$#" -ne 5 ] && [ "$#" -ne 6 ]; then
     echo "Illegal number of parameters"
-    echo "usage: $0 propertyName targetDataType targetIndexInfo preserveDataFlag [blockSize]"
+    echo "usage: $0 propertyName targetDataType targetIndexInfo preserveDataFlag consistencyLock [blockSize]"
     exit 1
 fi