1 files changed, 0 insertions, 173 deletions
diff --git a/src/main/java/org/onap/music/datastore/CassaLockStore.java b/src/main/java/org/onap/music/datastore/CassaLockStore.java
deleted file mode 100644
index e03a1c07..00000000
--- a/src/main/java/org/onap/music/datastore/CassaLockStore.java
+++ /dev/null
@@ -1,173 +0,0 @@
-package org.onap.music.datastore;
-
-import java.util.UUID;
-
-import org.onap.music.eelf.logging.EELFLoggerDelegate;
-import org.onap.music.exceptions.MusicQueryException;
-import org.onap.music.exceptions.MusicServiceException;
-import org.onap.music.main.MusicUtil;
-
-import com.datastax.driver.core.ResultSet;
-import com.datastax.driver.core.Row;
-import com.datastax.driver.core.utils.UUIDs;
-
-/*
- * This is the lock store that is built on top of Cassandra that is used by MUSIC to maintain lock state. 
- */
-
-public class CassaLockStore {
-	
-	private EELFLoggerDelegate logger = EELFLoggerDelegate.getLogger(CassaLockStore.class);
-	
-	public class LockObject{
-		public String lockRef;
-		public String createTime;
-		public String acquireTime;
-		public LockObject(String lockRef, String createTime, 	String acquireTime) {
-			this.lockRef = lockRef;
-			this.acquireTime = acquireTime;
-			this.createTime = createTime;
-			
-		}
-	}
-	CassaDataStore dsHandle;
-	public CassaLockStore() {
-		dsHandle = new CassaDataStore();
-	}
-	
-	public CassaLockStore(CassaDataStore dsHandle) {
-		this.dsHandle=dsHandle;
-	}
-
-    
-	/**
-	 * 
-	 * This method creates a shadow locking table for every main table in Cassandra. This table tracks all information regarding locks. 
-	 * @param keyspace of the application. 
-	 * @param table of the application. 
-	 * @return true if the operation was successful.
-	 * @throws MusicServiceException
-	 * @throws MusicQueryException
-	 */
-	public boolean createLockQueue(String keyspace, String table) throws MusicServiceException, MusicQueryException {
-        logger.info(EELFLoggerDelegate.applicationLogger,
-                "Create lock queue/table for " +  keyspace+"."+table);
-		table = "lockQ_"+table; 
-		String tabQuery = "CREATE TABLE IF NOT EXISTS "+keyspace+"."+table
-				+ " ( key text, lockReference bigint, createTime text, acquireTime text, guard bigint static, PRIMARY KEY ((key), lockReference) ) "
-				+ "WITH CLUSTERING ORDER BY (lockReference ASC);";
-		System.out.println(tabQuery);
-		PreparedQueryObject queryObject = new PreparedQueryObject(); 
-		
-		queryObject.appendQueryString(tabQuery);
-		boolean result;
-		result = dsHandle.executePut(queryObject, "eventual");
-		return result;
-	}
-
-	/**
-	 * This method creates a lock reference for each invocation. The lock references are monotonically increasing timestamps.
-	 * @param keyspace of the locks.
-	 * @param table of the locks.
-	 * @param lockName is the primary key of the lock table
-	 * @return the UUID lock reference.
-	 * @throws MusicServiceException
-	 * @throws MusicQueryException
-	 */
-	public String genLockRefandEnQueue(String keyspace, String table, String lockName) throws MusicServiceException, MusicQueryException {
-        logger.info(EELFLoggerDelegate.applicationLogger,
-                "Create lock reference for " +  keyspace + "." + table + "." + lockName);
-		table = "lockQ_" + table;
-		long lockEpochMillis = System.currentTimeMillis();
-		long lockRef = lockEpochMillis;
-
-		logger.info(EELFLoggerDelegate.applicationLogger,
-				"Created lock reference for " +  keyspace + "." + table + "." + lockName + ":" + lockRef);
-
-        PreparedQueryObject queryObject = new PreparedQueryObject();
-        String defaultQuery = " UPDATE " + keyspace + "." + table + " SET guard=-1 WHERE key=? IF guard = NULL;";
-
-        queryObject.addValue(lockName);
-        queryObject.appendQueryString(defaultQuery);
-        boolean dqResult = dsHandle.executePut(queryObject, "critical");
-//        System.out.println("dqResult: " + dqResult);
-
-
-        queryObject = new PreparedQueryObject();
-		String insQuery = "BEGIN BATCH" +
-                " UPDATE " + keyspace + "." + table + " SET guard=? WHERE key=? IF guard < ?;" +
-                " INSERT INTO " + keyspace + "." + table +
-				"(key, lockReference, createTime, acquireTime) VALUES (?,?,?,?) IF NOT EXISTS; APPLY BATCH;";
-
-        queryObject.addValue(lockRef);
-        queryObject.addValue(lockName);
-        queryObject.addValue(lockRef);
-
-        queryObject.addValue(lockName);
-        queryObject.addValue(lockRef);
-        queryObject.addValue(String.valueOf(lockEpochMillis));
-        queryObject.addValue("0");
-        queryObject.appendQueryString(insQuery);
-        boolean pResult = dsHandle.executePut(queryObject, "critical");
-//        System.out.println("pResult: " + pResult);
-		return String.valueOf(lockRef);
-	}
-	
-	
-	/**
-	 * This method returns the top of lock table/queue for the key. 
-	 * @param keyspace of the application. 
-	 * @param table of the application. 
-	 * @param key is the primary key of the application table
-	 * @return the UUID lock reference.
-	 * @throws MusicServiceException
-	 * @throws MusicQueryException
-	 */
-	public LockObject peekLockQueue(String keyspace, String table, String key) throws MusicServiceException, MusicQueryException{
-        logger.info(EELFLoggerDelegate.applicationLogger,
-                "Peek in lock table for " +  keyspace+"."+table+"."+key);
-		table = "lockQ_"+table; 
-		String selectQuery = "select * from "+keyspace+"."+table+" where key='"+key+"' LIMIT 1;";	
-        PreparedQueryObject queryObject = new PreparedQueryObject();
-        queryObject.appendQueryString(selectQuery);
-		ResultSet results = dsHandle.executeEventualGet(queryObject);
-		Row row = results.one();
-		String lockReference = "" + row.getLong("lockReference");
-		String createTime = row.getString("createTime");
-		String acquireTime = row.getString("acquireTime");
-
-		return new LockObject(lockReference, createTime,acquireTime);
-	}
-	
-	
-	/**
-	 * This method removes the lock ref from the lock table/queue for the key. 
-	 * @param keyspace of the application. 
-	 * @param table of the application. 
-	 * @param key is the primary key of the application table
-	 * @param lockReference the lock reference that needs to be dequeued.
-	 * @throws MusicServiceException
-	 * @throws MusicQueryException
-	 */	
-	public void deQueueLockRef(String keyspace, String table, String key, String lockReference) throws MusicServiceException, MusicQueryException{
-		table = "lockQ_"+table; 
-        PreparedQueryObject queryObject = new PreparedQueryObject();
-        Long lockReferenceL = Long.parseLong(lockReference);
-        String deleteQuery = "delete from "+keyspace+"."+table+" where key='"+key+"' AND lockReference ="+lockReferenceL+" IF EXISTS;";
-        queryObject.appendQueryString(deleteQuery);
-		dsHandle.executePut(queryObject, "critical");	
-	}
-	
-
-	public void updateLockAcquireTime(String keyspace, String table, String key, String lockReference) throws MusicServiceException, MusicQueryException{
-		table = "lockQ_"+table; 
-        PreparedQueryObject queryObject = new PreparedQueryObject();
-        Long lockReferenceL = Long.parseLong(lockReference);
-        String updateQuery = "update "+keyspace+"."+table+" set acquireTime='"+ System.currentTimeMillis()+"' where key='"+key+"' AND lockReference = "+lockReferenceL+" IF EXISTS;";
-        queryObject.appendQueryString(updateQuery);
-		dsHandle.executePut(queryObject, "eventual");	
-
-	}
-	
-
-}