public override void onCanCommit(CanCommitMessage message)
{
try
{
this.cohort.setTableName(message.getTableName());
this.cohort.setQueryString(message.getQueryString());
this.cohort.setCreate(message.isCreate());
int coordinatorTableVersion = message.getTableVersion();
String tableName = message.getTableName();
int localTableVersion = this.cohort.getDatabaseState().getTableVersion(tableName);
if (coordinatorTableVersion < localTableVersion)
{
throw new LessTableVersionException(tableName, coordinatorTableVersion, localTableVersion);
}
this.cohort.getDatabaseState().lockTable(message.getTableName());
this.cohort.replyToCoordinator(new YesForCommitMessage());
this.cohort.changeState(new PreparedState());
}
catch (Exception e)
{
Logger.getInstance().log(e.Message, "KOHORT", Logger.Level.WARNING);
this.cohort.replyToCoordinator(new NoForCommitMessage());
this.cohort.endTransaction();
this.cohort.setState(new AbortState());
}
}
public override void onTransaction(TransactionMessage message)
{
Logger.getInstance().log("Processing transaction", LOGGING_NAME, Logger.Level.INFO);
coordinator.setNodeCount(TcpSender.getInstance().getServerNodesCount());
SqlParser parser = new SqlParserImpl();
if(!parser.parse(message.QueryString))
{
Logger.getInstance().log("Unparsable query - send back error and end transaction", LOGGING_NAME, Logger.Level.INFO);
TcpSender.getInstance().sendToNode(new RBD.Msg.Client.ErrorMessage("Bad query"), message.Sender);
coordinator.endTransaction();
return;
}
coordinator.setQueryString( parser.getQueryString() );
coordinator.TableName = parser.getTableName();
if(parser.getOperationType().Equals(SqlOperationType.SELECT))
{
Logger.getInstance().log("Select query detected", LOGGING_NAME, Logger.Level.INFO);
coordinator.processSelect();
}
else
{
CanCommitMessage msg = new CanCommitMessage();
msg.TableName = parser.getTableName();
msg.QueryString = parser.getQueryString();
msg.TableVersion = coordinator.DatabaseState.getTableVersion(msg.TableName);
if(parser.getOperationType().Equals(SqlOperationType.CREATE)) {
msg.IsCreate = true;
}
else {
msg.IsCreate = false;
}
Logger.getInstance().log("Changing state to waiting", LOGGING_NAME, Logger.Level.INFO);
coordinator.broadcastMessage(msg);
coordinator.changeState(new WaitingState());
}
}
/**
* <!-- begin-UML-doc -->
* <!-- end-UML-doc -->
* @generated "UML to Java (com.ibm.xtools.transform.uml2.java5.internal.UML2JavaTransform)"
*/
virtual public void onCanCommit(CanCommitMessage message)
{
Logger.getInstance().log("Nie oczekiwano wiadomosci: CanCommit", LOGGER_NAME, Logger.Level.WARNING);
}
public void onCanCommit(CanCommitMessage message)
{
state.onCanCommit(message);
}
