public static boolean getInputIsWide(Configuration conf) {
return Boolean.parseBoolean(conf.get(INPUT_WIDEROWS_CONFIG));
}
/**
* Initialize any state for this DB. Called once per DB instance; there is one DB instance per
* client thread.
*/
public void init() throws DBException {
String hosts = getProperties().getProperty("hosts");
if (hosts == null) {
throw new DBException("Required property \"hosts\" missing for CassandraClient");
}
column_family =
getProperties().getProperty(COLUMN_FAMILY_PROPERTY, COLUMN_FAMILY_PROPERTY_DEFAULT);
parent = new ColumnParent(column_family);
ConnectionRetries =
Integer.parseInt(
getProperties()
.getProperty(CONNECTION_RETRY_PROPERTY, CONNECTION_RETRY_PROPERTY_DEFAULT));
OperationRetries =
Integer.parseInt(
getProperties()
.getProperty(OPERATION_RETRY_PROPERTY, OPERATION_RETRY_PROPERTY_DEFAULT));
String username = getProperties().getProperty(USERNAME_PROPERTY);
String password = getProperties().getProperty(PASSWORD_PROPERTY);
_debug = Boolean.parseBoolean(getProperties().getProperty("debug", "false"));
String[] allhosts = hosts.split(",");
String myhost = allhosts[random.nextInt(allhosts.length)];
Exception connectexception = null;
for (int retry = 0; retry < ConnectionRetries; retry++) {
tr = new TFramedTransport(new TSocket(myhost, 9160));
TProtocol proto = new TBinaryProtocol(tr);
client = new Cassandra.Client(proto);
try {
tr.open();
connectexception = null;
break;
} catch (Exception e) {
connectexception = e;
}
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
}
}
if (connectexception != null) {
System.err.println(
"Unable to connect to " + myhost + " after " + ConnectionRetries + " tries");
System.out.println(
"Unable to connect to " + myhost + " after " + ConnectionRetries + " tries");
throw new DBException(connectexception);
}
if (username != null && password != null) {
Map<String, String> cred = new HashMap<String, String>();
cred.put("username", username);
cred.put("password", password);
AuthenticationRequest req = new AuthenticationRequest(cred);
try {
client.login(req);
} catch (Exception e) {
throw new DBException(e);
}
}
}