private void executeDelete(CommonTree ast)
throws TException, InvalidRequestException, UnavailableException, TimedOutException,
UnsupportedEncodingException {
if (!CliMain.isConnected()) return;
int childCount = ast.getChildCount();
assert (childCount == 1);
CommonTree columnFamilySpec = (CommonTree) ast.getChild(0);
if (!(columnFamilySpec.getType() == CliParser.NODE_COLUMN_ACCESS)) return;
String tableName = CliCompiler.getTableName(columnFamilySpec);
String key = CliCompiler.getKey(columnFamilySpec);
String columnFamily = CliCompiler.getColumnFamily(columnFamilySpec);
int columnSpecCnt = CliCompiler.numColumnSpecifiers(columnFamilySpec);
byte[] superColumnName = null;
byte[] columnName = null;
boolean isSuper;
try {
if (!(getCFMetaData(tableName).containsKey(columnFamily))) {
css_.out.println("No such column family: " + columnFamily);
return;
}
isSuper =
getCFMetaData(tableName).get(columnFamily).get("Type").equals("Super") ? true : false;
} catch (NotFoundException nfe) {
css_.out.printf("No such keyspace: %s\n", tableName);
return;
}
if ((columnSpecCnt < 0) || (columnSpecCnt > 2)) {
css_.out.println("Invalid row, super column, or column specification.");
return;
}
if (columnSpecCnt == 1) {
// table.cf['key']['column']
if (isSuper) superColumnName = CliCompiler.getColumn(columnFamilySpec, 0).getBytes("UTF-8");
else columnName = CliCompiler.getColumn(columnFamilySpec, 0).getBytes("UTF-8");
} else if (columnSpecCnt == 2) {
// table.cf['key']['column']['column']
superColumnName = CliCompiler.getColumn(columnFamilySpec, 0).getBytes("UTF-8");
columnName = CliCompiler.getColumn(columnFamilySpec, 1).getBytes("UTF-8");
}
thriftClient_.remove(
tableName,
key,
createColumnPath(columnFamily, superColumnName, columnName),
timestampMicros(),
ConsistencyLevel.ONE);
css_.out.println(String.format("%s removed.", (columnSpecCnt == 0) ? "row" : "column"));
}
/**
* Delete a record from the database.
*
* @param table The name of the table
* @param key The record key of the record to delete.
* @return Zero on success, a non-zero error code on error
*/
public int delete(String table, String key) {
if (!_table.equals(table)) {
try {
client.set_keyspace(table);
_table = table;
} catch (Exception e) {
e.printStackTrace();
e.printStackTrace(System.out);
return Error;
}
}
for (int i = 0; i < OperationRetries; i++) {
try {
client.remove(
ByteBuffer.wrap(key.getBytes("UTF-8")),
new ColumnPath(column_family),
System.currentTimeMillis(),
ConsistencyLevel.ONE);
if (_debug) {
System.out.println("Delete key: " + key);
}
return Ok;
} catch (Exception e) {
errorexception = e;
}
try {
Thread.sleep(500);
} catch (InterruptedException e) {
}
}
errorexception.printStackTrace();
errorexception.printStackTrace(System.out);
return Error;
}
