public void close() {
RuntimeException closeError = null;
if (transferList != null) {
synchronized (this) {
for (Transfer transfer : transferList) {
try {
traceOperation("SESSION_CLOSE", 0);
transfer.writeInt(SessionRemote.SESSION_CLOSE);
done(transfer);
transfer.close();
} catch (RuntimeException e) {
trace.error(e, "close");
closeError = e;
} catch (Exception e) {
trace.error(e, "close");
}
}
}
transferList = null;
}
traceSystem.close();
if (embedded != null) {
embedded.close();
embedded = null;
}
if (closeError != null) {
throw closeError;
}
}
/**
* Cancel the statement with the given id.
*
* @param id the statement id
*/
public void cancelStatement(int id) {
for (Transfer transfer : transferList) {
try {
Transfer trans = transfer.openNewConnection();
trans.init();
trans.writeInt(clientVersion);
trans.writeInt(clientVersion);
trans.writeString(null);
trans.writeString(null);
trans.writeString(sessionId);
trans.writeInt(SessionRemote.SESSION_CANCEL_STATEMENT);
trans.writeInt(id);
trans.close();
} catch (IOException e) {
trace.debug(e, "could not cancel statement");
}
}
}
/**
* Write the operation to the trace system if debug trace is enabled.
*
* @param operation the operation performed
* @param id the id of the operation
*/
public void traceOperation(String operation, int id) {
if (trace.isDebugEnabled()) {
trace.debug("{0} {1}", operation, id);
}
}