/**
* INTERNAL: Applies customization to connection. Called only if connection is not already
* customized (isActive()==false). The method may throw SQLException wrapped into
* DatabaseException. isActive method called after this method should return true only in case the
* connection was actually customized.
*/
public void customize() {
// Lazily initialize proxy properties - customize method may be never called
// in case of ClientSession using external connection pooling.
if (proxyProperties == null) {
buildProxyProperties();
}
Connection connection = accessor.getConnection();
if (connection instanceof OracleConnection) {
oracleConnection = (OracleConnection) connection;
} else {
connection = session.getServerPlatform().unwrapConnection(connection);
if (connection instanceof OracleConnection) {
oracleConnection = (OracleConnection) connection;
} else {
throw ValidationException.oracleJDBC10_1_0_2ProxyConnectorRequiresOracleConnection();
}
}
try {
clearConnectionCache();
Object[] args = null;
if (this.session.shouldLog(SessionLog.FINEST, SessionLog.CONNECTION)) {
Properties logProperties = proxyProperties;
if (proxyProperties.containsKey(OracleConnection.PROXY_USER_PASSWORD)) {
logProperties = (Properties) proxyProperties.clone();
logProperties.setProperty(OracleConnection.PROXY_USER_PASSWORD, "******");
}
args = new Object[] {oracleConnection, logProperties};
}
if (oracleConnection.isProxySession()) {
// Unexpectedly oracleConnection already has a proxy session - probably it was not closed
// when connection was returned back to connection pool.
// That may happen on jta transaction rollback (especially triggered outside of user's
// thread - such as timeout)
// when beforeCompletion is never issued
// and application server neither closes proxySession nor allows access to connection in
// afterCompletion.
try {
if (args != null) {
((AbstractSession) this.session)
.log(
SessionLog.FINEST,
SessionLog.CONNECTION,
"proxy_connection_customizer_already_proxy_session",
args);
}
oracleConnection.close(OracleConnection.PROXY_SESSION);
} catch (SQLException exception) {
// Ignore
this.session
.getSessionLog()
.logThrowable(SessionLog.WARNING, SessionLog.CONNECTION, exception);
}
}
oracleConnection.openProxySession(proxyType, proxyProperties);
// 12c driver will default to an autoCommit setting of true on calling openProxySession
oracleConnection.setAutoCommit(false);
if (args != null) {
((AbstractSession) this.session)
.log(
SessionLog.FINEST,
SessionLog.CONNECTION,
"proxy_connection_customizer_opened_proxy_session",
args);
}
} catch (SQLException exception) {
oracleConnection = null;
throw DatabaseException.sqlException(exception);
} catch (NoSuchMethodError noSuchMethodError) {
oracleConnection = null;
throw ValidationException.oracleJDBC10_1_0_2ProxyConnectorRequiresOracleConnectionVersion();
}
}
