1 files changed, 115 insertions, 0 deletions
diff --git a/src/main/java/org/onap/music/datastore/MusicDataStoreHandle.java b/src/main/java/org/onap/music/datastore/MusicDataStoreHandle.java
new file mode 100644
index 00000000..a2d9386b
--- /dev/null
+++ b/src/main/java/org/onap/music/datastore/MusicDataStoreHandle.java
@@ -0,0 +1,115 @@
+/*
+ * ============LICENSE_START==========================================
+ * org.onap.music
+ * ===================================================================
+ *  Copyright (c) 2017 AT&T Intellectual Property
+ * ===================================================================
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ * 
+ * ============LICENSE_END=============================================
+ * ====================================================================
+ */
+package org.onap.music.datastore;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import org.onap.music.eelf.logging.EELFLoggerDelegate;
+import org.onap.music.exceptions.MusicServiceException;
+import org.onap.music.main.MusicUtil;
+import org.onap.music.service.impl.MusicCassaCore;
+
+import com.datastax.driver.core.ResultSet;
+import com.datastax.driver.core.TableMetadata;
+
+public class MusicDataStoreHandle {
+	
+	 public static MusicDataStore mDstoreHandle = null;
+	 private static EELFLoggerDelegate logger = EELFLoggerDelegate.getLogger(MusicDataStoreHandle.class);
+	
+    /**
+     * 
+     * @param remoteIp
+     * @return
+     */
+    public static MusicDataStore getDSHandle(String remoteIp) {
+        logger.info(EELFLoggerDelegate.applicationLogger,"Acquiring data store handle");
+        long start = System.currentTimeMillis();
+        if (mDstoreHandle == null) {
+        	try {
+    			MusicUtil.loadProperties();
+    		} catch (Exception e) {
+    			logger.error(EELFLoggerDelegate.errorLogger, "No properties file defined. Falling back to default.");
+    		}
+            mDstoreHandle = new MusicDataStore(remoteIp);
+        }
+        long end = System.currentTimeMillis();
+        logger.info(EELFLoggerDelegate.applicationLogger,"Time taken to acquire data store handle:" + (end - start) + " ms");
+        return mDstoreHandle;
+    }
+
+    /**
+     * 
+     * @return
+     * @throws MusicServiceException 
+     */
+    public static MusicDataStore getDSHandle() throws MusicServiceException {
+		
+        logger.info(EELFLoggerDelegate.applicationLogger,"Acquiring data store handle");
+        long start = System.currentTimeMillis();
+        if (mDstoreHandle == null) {
+        	try {
+    			MusicUtil.loadProperties();
+    		} catch (Exception e) {
+    			logger.error(EELFLoggerDelegate.errorLogger, "No properties file defined. Falling back to default.");
+    		}
+            // Quick Fix - Best to put this into every call to getDSHandle?
+            if (! MusicUtil.getMyCassaHost().equals("localhost") ) {
+                mDstoreHandle = new MusicDataStore(MusicUtil.getMyCassaHost());
+            } else {
+                mDstoreHandle = new MusicDataStore();
+            }
+        }
+        if(mDstoreHandle.getSession() == null) {
+        	String message = "Connection to Cassandra has not been enstablished."
+        			+ " Please check connection properites and reboot.";
+        	logger.info(EELFLoggerDelegate.applicationLogger, message);
+            throw new MusicServiceException(message);
+        }
+        long end = System.currentTimeMillis();
+        logger.info(EELFLoggerDelegate.applicationLogger,"Time taken to acquire data store handle:" + (end - start) + " ms");
+        return mDstoreHandle;
+    }
+    
+    /**
+     * 
+     * @param keyspace
+     * @param tablename
+     * @return
+     * @throws MusicServiceException 
+     */
+    public static TableMetadata returnColumnMetadata(String keyspace, String tablename) throws MusicServiceException {
+        return MusicDataStoreHandle.getDSHandle().returnColumnMetadata(keyspace, tablename);
+    }
+    
+    /**
+     * 
+     * @param results
+     * @return
+     * @throws MusicServiceException 
+     */
+    public static Map<String, HashMap<String, Object>> marshallResults(ResultSet results) throws MusicServiceException {
+        return MusicDataStoreHandle.getDSHandle().marshalData(results);
+    }
+
+}