private Object runInTx(Task task, Object... input) {
HibernateCallback action = new RunInHibernate(task, input);
TransactionTemplate txTemplate = new TransactionTemplate(this.txMgr);
boolean rollbackOnly = task instanceof DefaultRollback && !isTxRunning();
RunInTx tx = new RunInTx(action, rollbackOnly);
if (txLogger.isInfoEnabled()) {
if (isTxRunning()) {
txLogger.info("tx is running executing \"" + task.getName() + "\" in current tx");
} else {
txLogger.info("no tx running, wrapping execution of \"" + task.getName() + "\" in tx");
if (rollbackOnly) {
txLogger.info("rollback enabled for \"" + task.getName() + "\"");
}
}
}
Object rtn = null;
try {
rtn = txTemplate.execute(tx);
} catch (Throwable ex) {
// The following logic intends to display a sensible message for the user when a column
// contains a value whose length
// exceeds the maximum length allowed in the database. The logic has been tested on MySQL,
// Postgres, Oracle and
// SQLServer so far.
if (ex.getCause() instanceof java.sql.BatchUpdateException) { // Oracle
String msg =
((java.sql.BatchUpdateException) ex.getCause()).getNextException().getMessage();
if (msg != null) {
ex.printStackTrace();
throw new WMRuntimeException(msg);
}
} else if (ex.getCause().getCause() instanceof java.sql.BatchUpdateException) { // Postgres
java.sql.BatchUpdateException e = (java.sql.BatchUpdateException) ex.getCause().getCause();
if (e != null && e.getMessage() != null) {
ex.printStackTrace();
throw new WMRuntimeException(e.getNextException().getMessage());
}
} else if (ex.getCause().getCause() != null) { // MySQL, SQLServer
String msg = ex.getCause().getCause().getMessage();
if (msg != null) {
ex.printStackTrace();
throw new WMRuntimeException(msg);
}
} else {
throw new WMRuntimeException(ex);
}
}
if (txLogger.isInfoEnabled()) {
if (isTxRunning()) {
txLogger.info("tx is running after execution of \"" + task.getName() + "\"");
} else {
txLogger.info("tx is not running after execution of \"" + task.getName() + "\"");
}
}
return rtn;
}
private void extractDetails(BatchUpdateException ex) {
String msg = ex.getMessage();
Matcher m = FOREIGN_KEY_CONSTRAINT.matcher(msg);
if (m.matches()) {
this.child = m.group(2);
this.parent = m.group(1);
} else {
logger.error("matcher did not match, ex='" + root.getStackTrace() + "' msg was:" + msg);
}
}