public static void createKeyspace(
Cluster cluster, String name, String strategy, int replicationFactor, List<CfDef> cfDefList) {
try {
KsDef ksDef = new KsDef(name, strategy, replicationFactor, cfDefList);
cluster.addKeyspace(new ThriftKsDef(ksDef));
return;
} catch (Throwable e) {
System.out.println(
"exception while creating keyspace, "
+ name
+ " - probably already exists : "
+ e.getMessage());
}
for (CfDef cfDef : cfDefList) {
try {
cluster.addColumnFamily(new ThriftCfDef(cfDef));
} catch (Throwable e) {
System.out.println(
"exception while creating CF, "
+ cfDef.getName()
+ " - probably already exists : "
+ e.getMessage());
}
}
}
private void init(Cluster cluster) {
if (cluster.describeKeyspace("SiddhiSnapshots") == null) {
log.info("Adding keyspace SiddhiSnapshots");
cluster.addKeyspace(HFactory.createKeyspaceDefinition("SiddhiSnapshots"));
keyspace = HFactory.createKeyspace("SiddhiSnapshots", cluster);
cluster.addColumnFamily(
HFactory.createColumnFamilyDefinition(keyspace.getKeyspaceName(), COLUMN_FAMILY_NAME));
cluster.addColumnFamily(
HFactory.createColumnFamilyDefinition(
keyspace.getKeyspaceName(), INDEX_COLUMN_FAMILY_NAME));
} else {
if (log.isDebugEnabled()) {
log.debug("keyspace SiddhiSnapshots exists");
}
keyspace = HFactory.createKeyspace("SiddhiSnapshots", cluster);
}
}
void createColumnfamily(String cfname) {
if (cfname.equals("") || cfname.trim().equals(null)) {
return;
} else {
cfcreate = cfname.toLowerCase();
if (checkExist(cfcreate) == false) {
cfdef = HFactory.createColumnFamilyDefinition(keyspaceName, cfcreate);
myCluster.addColumnFamily(cfdef, true);
}
}
}
/**
* Create a Column family for cassandra counters in a given Cluster intance
*
* @param name ColumnFamily Name
* @param keySpace KeySpace name
* @param cluster Cluster instance
* @throws CassandraDataAccessException In case of an Error accessing database or data error
*/
public static void createCounterColumnFamily(String name, String keySpace, Cluster cluster)
throws CassandraDataAccessException {
KeyspaceDefinition ksDef = cluster.describeKeyspace(keySpace);
if (ksDef == null) {
throw new CassandraDataAccessException(
"Can't create Column family, keyspace " + keySpace + " does not exist");
}
ColumnFamilyDefinition cfDef =
HFactory.createColumnFamilyDefinition(keySpace, name, ComparatorType.COUNTERTYPE);
cfDef.setComparatorType(ComparatorType.UTF8TYPE);
cfDef.setDefaultValidationClass(ComparatorType.COUNTERTYPE.getClassName());
cfDef.setColumnType(ColumnType.STANDARD);
List<ColumnFamilyDefinition> cfDefsList = ksDef.getCfDefs();
HashSet<String> cfNames = new HashSet<String>();
for (ColumnFamilyDefinition columnFamilyDefinition : cfDefsList) {
cfNames.add(columnFamilyDefinition.getName());
}
if (!cfNames.contains(name)) {
cluster.addColumnFamily(cfDef, true);
}
}
/**
* Create a Column family in a Given Cluster instance
*
* @param name ColumnFamily Name
* @param keySpace KeySpace name
* @param cluster Cluster instance
* @param comparatorType Comparator
* @throws CassandraDataAccessException In case of an Error accessing database or data error
*/
public static void createColumnFamily(
String name, String keySpace, Cluster cluster, String comparatorType)
throws CassandraDataAccessException {
KeyspaceDefinition ksDef = cluster.describeKeyspace(keySpace);
if (ksDef == null) {
throw new CassandraDataAccessException(
"Can't create Column family, keyspace " + keySpace + " does not exist");
}
ColumnFamilyDefinition cfDef =
new ThriftCfDef(keySpace, /*"Queue"*/ name, ComparatorType.getByClassName(comparatorType));
List<ColumnFamilyDefinition> cfDefsList = ksDef.getCfDefs();
HashSet<String> cfNames = new HashSet<String>();
for (ColumnFamilyDefinition columnFamilyDefinition : cfDefsList) {
cfNames.add(columnFamilyDefinition.getName());
}
if (!cfNames.contains(name)) {
cluster.addColumnFamily(cfDef, true);
}
}