vitalif
/
openesb-components
mirror of https://github.com/vitalif/openesb-components
1
0
Fork 0
Code Issues Releases Wiki Activity

Allow to use any query for POLL operation

master
Vitaliy Filippov 2015-12-21 00:07:03 +03:00
parent 4a592c717b
commit 133fc66358
1 changed files with 60 additions and 78 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

138
ojc-core/databasebc/databasebcimpl/src/org/glassfish/openesb/databasebc/InboundMessageProcessor.java
View File

@ -145,8 +145,6 @@ public class InboundMessageProcessor implements Runnable, MessageExchangeReplyLi
private String mXAEnabled = null;
private DatabaseModel dbDataAccessObject = null;
private String mTableName = null;
private String mDbName = null;
@ -358,7 +356,7 @@ public class InboundMessageProcessor implements Runnable, MessageExchangeReplyLi
getTransactionManager().begin();
}
dbDataAccessObject = getDataAccessObject(meta);
DatabaseModel dbDataAccessObject = getDataAccessObject(meta);
mSelectSQL = dbDataAccessObject.generateSelectQuery(mSelectSQL, mTableName);
epb.setTableName(mTableName);
@ -366,66 +364,64 @@ public class InboundMessageProcessor implements Runnable, MessageExchangeReplyLi
if (mDbName == null){
mDbName = connection.getMetaData().getDatabaseProductName().toLowerCase();
}
if (isSelectStatement(mSelectSQL)) {
if (epb.isClustered()) {
connection.setAutoCommit(false);
// In cluster environment, adding a simple "FOR UPDATE" to the poll query is enough
// to make different OpenESB instances always process different rows.
//
// Although, in VERY RARE cases - i.e. if your DBMS supports transactions and
// locking, but DOES NOT support FOR UPDATE and you can't use any hacks to
// emulate it as the part of poll query - you can use a separate SQL statement
// to obtain lock before selecting rows from the polled table.
// However, note that in this case your BPEL process MUST NOT update the
// "MarkColumn" of the polled table, because there will be no guarantee that
// Database Binding updates the MarkColumn BEFORE BPEL thread also updates it.
//
// TODO: Add a separate "Lock statement" property
String lockStatement = meta.getJDBCSql().getGeneratedKey();
if (lockStatement != null && !lockStatement.equals("")) {
Statement st = connection.createStatement();
st.execute(lockStatement);
st.close();
}
} else {
connection.setAutoCommit(true);
if (epb.isClustered()) {
connection.setAutoCommit(false);
// In cluster environment, adding a simple "FOR UPDATE" to the poll query is enough
// to make different OpenESB instances always process different rows.
//
// Although, in VERY RARE cases - i.e. if your DBMS supports transactions and
// locking, but DOES NOT support FOR UPDATE and you can't use any hacks to
// emulate it as the part of poll query - you can use a separate SQL statement
// to obtain lock before selecting rows from the polled table.
// However, note that in this case your BPEL process MUST NOT update the
// "MarkColumn" of the polled table, because there will be no guarantee that
// Database Binding updates the MarkColumn BEFORE BPEL thread also updates it.
//
// TODO: Add a separate "Lock statement" property
String lockStatement = meta.getJDBCSql().getGeneratedKey();
if (lockStatement != null && !lockStatement.equals("")) {
Statement st = connection.createStatement();
st.execute(lockStatement);
st.close();
}
} else {
connection.setAutoCommit(true);
}
List tempList = null;
rs = executeInboundSQLSelect(epb, meta, connection, mTableName, mSelectSQL);
if (rs != null) {
final JDBCNormalizer normalizer = new JDBCNormalizer();
Probe normalizationMeasurement = Probe.info(getClass(),
epb.getUniqueName(), JDBCBindingLifeCycle.PERF_CAT_NORMALIZATION);
normalizer.setInboundExchangeProcessRecordsMap(mMapInboundExchangesProcessRecords);
normalizer.setRecordsProcessedList(mProcessedList);
inMsg = normalizer.normalizeSelectInbound(rs, exchange, meta, epb, mPKName,mDbName);
rowCount = normalizer.mRowCount;
if(normalizationMeasurement != null){
normalizationMeasurement.end();
}
List tempList = null;
rs = executeInboundSQLSelect(epb, meta, connection, mTableName, mSelectSQL);
tempList = epb.getProcessList();
if (!tempList.isEmpty())
{
// set JNDI name on NormalizedMessage for dynamic addressing
inMsg.setProperty(JDBCComponentContext.NM_PROP_DATABASEBC_CONNECTION_JNDI_NAME, jndiName);
exchange.setMessage(inMsg, "in");
if (rs != null) {
final JDBCNormalizer normalizer = new JDBCNormalizer();
Probe normalizationMeasurement = Probe.info(getClass(),
epb.getUniqueName(), JDBCBindingLifeCycle.PERF_CAT_NORMALIZATION);
mInboundExchanges.put(exchangeId, new ListenerMeta(
System.currentTimeMillis(), this));
normalizer.setInboundExchangeProcessRecordsMap(mMapInboundExchangesProcessRecords);
normalizer.setRecordsProcessedList(mProcessedList);
inMsg = normalizer.normalizeSelectInbound(rs, exchange, meta, epb, mPKName,mDbName);
rowCount = normalizer.mRowCount;
if(normalizationMeasurement != null){
normalizationMeasurement.end();
}
tempList = epb.getProcessList();
if (!tempList.isEmpty())
{
// set JNDI name on NormalizedMessage for dynamic addressing
inMsg.setProperty(JDBCComponentContext.NM_PROP_DATABASEBC_CONNECTION_JNDI_NAME, jndiName);
exchange.setMessage(inMsg, "in");
mInboundExchanges.put(exchangeId, new ListenerMeta(
System.currentTimeMillis(), this));
mChannel.sendSync(exchange);
epb.getEndpointStatus().incrementSentRequests();
}
mChannel.sendSync(exchange);
epb.getEndpointStatus().incrementSentRequests();
}
}
if (tempList != null && !tempList.isEmpty()) {
doPostProcessing(connection, tempList);
}
if (tempList != null && !tempList.isEmpty()) {
doPostProcessing(connection, tempList);
}
}
} catch (final Exception ex) {
@ -502,8 +498,6 @@ public class InboundMessageProcessor implements Runnable, MessageExchangeReplyLi
String lSelectSQL) throws MessagingException {
ResultSet rs = null;
try {
String jndiName = epb.getValue(EndpointBean.JDBC_DATABASE_JNDI_NAME);
mLogger.log(Level.INFO, InboundMessageProcessor.mMessages.getString("DBBC_R00629.OMP_UsedJNDI") + jndiName);
String where = "";
List<String> bind = new ArrayList<String>();
if (lSelectSQL.indexOf("$WHERE") >= 0) {
@ -535,6 +529,13 @@ public class InboundMessageProcessor implements Runnable, MessageExchangeReplyLi
"Reason: " + ex.getLocalizedMessage() + " SQLState: " + ex.getSQLState() + " ErrorCode: " + ex.getErrorCode();
throw new MessagingException(msg, ex);
} catch (final Exception ex) {
if (mLogger.isLoggable(Level.FINEST)) {
mLogger.log(Level.FINEST, mMessages.getString("DBBC_E00639.IMP_Failed_Executing_SQL") + lSelectSQL, ex);
} else if (mLogger.isLoggable(Level.FINE)) {
mLogger.log(Level.FINE, mMessages.getString("DBBC_E00639.IMP_Failed_Executing_SQL") + lSelectSQL);
} else if (mLogger.isLoggable(Level.INFO)) {
mLogger.info(mMessages.getString("DBBC_E00639.IMP_Failed_Executing_SQL"));
}
final String msg = InboundMessageProcessor.mMessages.getString("DBBC_E00639.IMP_Failed_Executing_SQL") + lSelectSQL
+ ex.getLocalizedMessage();
throw new MessagingException(msg, ex);
@ -780,25 +781,6 @@ public class InboundMessageProcessor implements Runnable, MessageExchangeReplyLi
mLogger.log(Level.INFO, InboundMessageProcessor.mMessages.getString("DBBC_R00629.OMP_UsedJNDI") + jndiName);
return ((DataSource) getDataSourceFromContext(jndiName)).getConnection();
}
/**
* @param prepStmtSQLText
* @return
*/
private boolean isSelectStatement(final String prepStmtSQLText) {
prepStmtSQLText.trim();
final StringTokenizer tok = new StringTokenizer(prepStmtSQLText);
if (tok.hasMoreTokens()) {
final String firstTok = (String) tok.nextToken();
if (firstTok.equalsIgnoreCase("select")) {
return true;
}
}
return false;
}
protected void stopReceiving() {
mLogger.log(Level.INFO, "DBBC_R00644.IMP_Inbound_stopped");