public IPentahoResultSet doQuery(
final SQLConnection sqlConnection, final String query, boolean forwardOnlyResultset)
throws Exception {
//
// At this point, 'connection' and 'sqlConnection' should be pointers to
// the same object iff the 'connection' is a subclass of pentaho's SQLConnection.
// It is possible that the sqlConnection will be null, but the connection
// won't be if someone is using their own implementation of the SQLConnection from
// the factory.
//
IPentahoResultSet resultSet = null;
if (ComponentBase.debug) {
dumpQuery(query);
}
if (preparedParameters.size() > 0) {
if (!forwardOnlyResultset) {
resultSet = connection.prepareAndExecuteQuery(query, preparedParameters);
} else {
if (sqlConnection != null) {
resultSet =
sqlConnection.prepareAndExecuteQuery(
query,
preparedParameters,
SQLConnection.RESULTSET_FORWARDONLY,
SQLConnection.CONCUR_READONLY);
} else {
throw new IllegalStateException(
Messages.getInstance()
.getErrorString(
"SQLBaseComponent.ERROR_0008_UNSUPPORTED_CURSOR_TYPE")); //$NON-NLS-1$
}
}
} else {
if (!forwardOnlyResultset) {
resultSet = connection.executeQuery(query);
} else {
if (sqlConnection != null) {
resultSet =
sqlConnection.executeQuery(
query, SQLConnection.RESULTSET_FORWARDONLY, SQLConnection.CONCUR_READONLY);
} else {
throw new IllegalStateException(
Messages.getInstance()
.getErrorString(
"SQLBaseComponent.ERROR_0008_UNSUPPORTED_CURSOR_TYPE")); //$NON-NLS-1$
}
}
}
return resultSet;
}
/**
* executes a prepared method that returns a result set executePrepared looks up any
* "PREPARELATER" params in the preparedParams map.
*
* @param preparedParams a map of possible parameters.
* @return result set
*/
public IPentahoResultSet executePrepared(final Map preparedParams) {
try {
if (connection == null) {
error(
Messages.getInstance()
.getErrorString("SQLBaseComponent.ERROR_0007_NO_CONNECTION")); // $NON-NLS-1$
return null;
}
if (!connection.initialized()) {
error(
Messages.getInstance()
.getErrorString("SQLBaseComponent.ERROR_0007_NO_CONNECTION")); // $NON-NLS-1$
return null;
}
if (preparedQuery == null) {
error(
Messages.getInstance()
.getErrorString(
"SQLBaseComponent.ERROR_0001_QUERY_NOT_SPECIFIED",
getActionName())); //$NON-NLS-1$
return null;
}
// copy the preparedParams list, so it can be used multiple times.
ArrayList copyOfPreparedParameters = new ArrayList(preparedParameters);
// parse preparedQuery, replacing any {PREPARELATER:NAME} with appropriate values
String query =
TemplateUtil.applyTemplate(
preparedQuery,
getRuntimeContext(),
new ParamResolver(copyOfPreparedParameters, preparedParams));
if (ComponentBase.debug) {
dumpQuery(query);
}
// evaluate
IPentahoResultSet resultSet = null;
if (preparedParameters.size() > 0) {
resultSet = connection.prepareAndExecuteQuery(query, copyOfPreparedParameters);
} else {
resultSet = connection.executeQuery(query);
}
if (connection instanceof SQLConnection) {
if (((SQLConnection) connection).isForcedForwardOnly()) {
warn(
Messages.getInstance()
.getString("SQLBaseComponent.WARN_FALL_BACK_TO_NONSCROLLABLE")); // $NON-NLS-1$
}
}
boolean live = true;
IActionDefinition actionDefinition = getActionDefinition();
if (actionDefinition instanceof AbstractRelationalDbAction) {
AbstractRelationalDbAction relationalDbAction =
(AbstractRelationalDbAction) actionDefinition;
live = relationalDbAction.getLive().getBooleanValue(false);
}
IPentahoResultSet rs = resultSet;
// BISERVER-5915, BISERVER-5875 - if the live setting is false, return an in memory resultset.
if (!live) {
rs = resultSet.memoryCopy();
}
rSet = rs;
return rs;
} catch (Exception e) {
error(
Messages.getInstance()
.getErrorString("SQLBaseComponent.ERROR_0006_EXECUTE_FAILED", getActionName()),
e); //$NON-NLS-1$
}
return null;
}
