@Override
public String dropColumnFamily(
final String keyspaceName, final String columnFamily, final boolean blockUntilComplete)
throws HectorException {
Operation<String> op =
new Operation<String>(
OperationType.META_WRITE,
FailoverPolicy.ON_FAIL_TRY_ALL_AVAILABLE,
keyspaceName,
getCredentials()) {
@Override
public String execute(Cassandra.Client cassandra) throws HectorException {
try {
String schemaId = cassandra.system_drop_column_family(columnFamily);
if (blockUntilComplete) {
waitForSchemaAgreement(cassandra);
}
return schemaId;
} catch (Exception e) {
throw xtrans.translate(e);
}
}
};
connectionManager.operateWithFailover(op);
return op.getResult();
}
/* (non-Javadoc)
* @see me.prettyprint.cassandra.service.Cluster#describeThriftVersion()
*/
@Override
public String describeThriftVersion() throws HectorException {
Operation<String> op =
new Operation<String>(OperationType.META_READ, getCredentials()) {
@Override
public String execute(Cassandra.Client cassandra) throws HectorException {
try {
return cassandra.describe_version();
} catch (Exception e) {
throw xtrans.translate(e);
}
}
};
connectionManager.operateWithFailover(op);
return op.getResult();
}
/* (non-Javadoc)
* @see me.prettyprint.cassandra.service.Cluster#describeKeyspaces()
*/
@Override
public List<KeyspaceDefinition> describeKeyspaces() throws HectorException {
Operation<List<KeyspaceDefinition>> op =
new Operation<List<KeyspaceDefinition>>(OperationType.META_READ, getCredentials()) {
@Override
public List<KeyspaceDefinition> execute(Cassandra.Client cassandra)
throws HectorException {
try {
return ThriftKsDef.fromThriftList(cassandra.describe_keyspaces());
} catch (Exception e) {
throw xtrans.translate(e);
}
}
};
connectionManager.operateWithFailover(op);
return op.getResult();
}
@Override
public String describePartitioner() throws HectorException {
Operation<String> op =
new Operation<String>(OperationType.META_READ, getCredentials()) {
@Override
public String execute(Cassandra.Client cassandra) throws HectorException {
try {
if (log.isInfoEnabled()) {
log.info("in execute with client {}", cassandra);
}
return cassandra.describe_partitioner();
} catch (Exception e) {
throw xtrans.translate(e);
}
}
};
connectionManager.operateWithFailover(op);
return op.getResult();
}
/* (non-Javadoc)
* @see me.prettyprint.cassandra.service.Cluster#describeKeyspace(java.lang.String)
*/
@Override
public KeyspaceDefinition describeKeyspace(final String keyspace) throws HectorException {
Operation<KeyspaceDefinition> op =
new Operation<KeyspaceDefinition>(OperationType.META_READ, getCredentials()) {
@Override
public KeyspaceDefinition execute(Cassandra.Client cassandra) throws HectorException {
try {
return new ThriftKsDef(cassandra.describe_keyspace(keyspace));
} catch (org.apache.cassandra.thrift.NotFoundException nfe) {
setException(xtrans.translate(nfe));
return null;
} catch (Exception e) {
throw xtrans.translate(e);
}
}
};
connectionManager.operateWithFailover(op);
return op.getResult();
}
@Override
public void truncate(final String keyspaceName, final String columnFamily)
throws HectorException {
Operation<Void> op =
new Operation<Void>(
OperationType.META_WRITE,
FailoverPolicy.ON_FAIL_TRY_ALL_AVAILABLE,
keyspaceName,
getCredentials()) {
@Override
public Void execute(Cassandra.Client cassandra) throws HectorException {
try {
cassandra.truncate(columnFamily);
} catch (Exception e) {
throw xtrans.translate(e);
}
return null;
}
};
connectionManager.operateWithFailover(op);
}
@Override
public String dropKeyspace(final String keyspace, final boolean blockUntilComplete)
throws HectorException {
Operation<String> op =
new Operation<String>(OperationType.META_WRITE, getCredentials()) {
@Override
public String execute(Cassandra.Client cassandra) throws HectorException {
try {
String schemaId = cassandra.system_drop_keyspace(keyspace);
if (blockUntilComplete) {
waitForSchemaAgreement(cassandra);
}
return schemaId;
} catch (Exception e) {
throw xtrans.translate(e);
}
}
};
connectionManager.operateWithFailover(op);
return op.getResult();
}