private List getMatchingRowDataList(Map connectorMap, TableData childRt) {
List filteredList = new ArrayList();
boolean allPassed = true;
int size = childRt.getTableSize();
for (int i = 0; i < size; i++) {
RowData child = childRt.getRow(i);
for (Iterator it = connectorMap.keySet().iterator(); it.hasNext(); ) {
String key = (String) it.next();
Object keyData = connectorMap.get(key);
Object rowData = child.getField(key);
if (rowData == null || !rowData.toString().equalsIgnoreCase(keyData.toString())) {
allPassed = false;
break;
}
}
if (allPassed) {
filteredList.add(child);
}
allPassed = true;
}
return filteredList;
}
private void linkParentWithChild(
TableData parentRt, TableData childRt, String processorName, List connectorList) {
if (parentRt == null || childRt == null || childRt.getTableSize() == 0) return;
int size = parentRt.getAllRows().size();
Map connectorMap = new HashMap();
for (int i = 0; i < size; i++) {
RowData parentRow = parentRt.getRow(i);
populateConnectorMap(connectorMap, parentRow, connectorList);
parentRow.addChildRowToMap(processorName, getMatchingRowDataList(connectorMap, childRt));
// clear the map for next row
connectorMap.clear();
}
}
/**
* Retrieve a list of rows from database with a certain limit range. If the number of returned
* records is more than the preset limit range, an UnexpectedDataException will be thrown.
*
* <p>If DataProcessor.input_key_records_fixed key has value "true" in inputs, absolute fixed
* number of records is required. An UnexpectedDataException will be thrown if the number of
* retrieved records is not equal to limitOrFixed.
*
* <p>If the limitOrFixed = -1, all records are retrieved.
*
* <p>offset defaults to 0.
*
* @param inputs Map of input data
* @param processorType A named sql or direct sql or stored procedure
* @param processorName Sql name or sql itself or stored procedure name
* @param limitOrFixed Number of desired (limit) or fixed records to retrieve
* @param offset int for offset
* @return TableData The row data
* @throws com.scooterframework.orm.sqldataexpress.exception.BaseSQLException
*/
public TableData retrieveRows(
Map inputs, String processorType, String processorName, int limitOrFixed, int offset)
throws BaseSQLException {
if (processorType == null || processorName == null)
throw new IllegalArgumentException("processorType or processorName is null.");
if (inputs == null) inputs = new HashMap();
inputs.put(DataProcessor.input_key_records_offset, new Integer(offset));
inputs.put(DataProcessor.input_key_records_limit, new Integer(limitOrFixed));
OmniDTO dto = execute(inputs, processorType, processorName);
TableData td = dto.getTableData(processorName);
if (limitOrFixed != DataProcessor.NO_ROW_LIMIT) {
if (td.getTableSize() > limitOrFixed) {
throw new UnexpectedDataException(
"Failed to retrieveRows: required "
+ limitOrFixed
+ " but retrieved "
+ td.getTableSize()
+ ".");
} else {
boolean requireFixed =
Util.getBooleanValue(inputs, DataProcessor.input_key_records_fixed, false);
if (requireFixed) {
if (td.getTableSize() != limitOrFixed) {
throw new UnexpectedDataException(
"Failed to retrieveRows: required only "
+ limitOrFixed
+ " but retrieved "
+ td.getTableSize()
+ ".");
}
}
}
}
return td;
}
/** execute a collection of InputInfo objects in one transaction */
public OmniDTO retrieveMasterDetails(InputInfo inputInfo) throws BaseSQLException {
if (inputInfo == null) throw new IllegalArgumentException("inputInfo is null.");
ImplicitTransactionManager tm = TransactionManagerUtil.getImplicitTransactionManager();
OmniDTO returnTO = null;
try {
tm.beginTransactionImplicit();
InputInfo ip = inputInfo;
UserDatabaseConnection udc = findOrCreateConnection(ip);
udc.getConnection().setReadOnly(true);
returnTO =
executeKeepConnection(
udc,
ip.getInputs(),
ip.getProcessorType(),
ip.getProcessorName(),
ip.getOutputFilters());
log.debug("parent: " + returnTO);
// now execute child InputInfo
Collection childList = ip.getChildInputInfoObjects();
Iterator childIt = childList.iterator();
while (childIt.hasNext()) {
InputInfo childIp = (InputInfo) childIt.next();
// find all input parameters in childIp that need data from parent
List connectorList = new ArrayList();
Map childInputs = childIp.getInputs();
childInputs = convertKeyCase(childInputs);
Iterator it = childInputs.keySet().iterator();
while (it.hasNext()) {
String key = (String) it.next();
String value = (String) childInputs.get(key);
if (key.startsWith("&")) connectorList.add(value);
}
// create a select union query
String query = null;
if (DataProcessorTypes.NAMED_SQL_STATEMENT_PROCESSOR.equals(childIp.getProcessorType())) {
query = SqlConfig.getInstance().getSql(childIp.getProcessorName());
} else if (DataProcessorTypes.DIRECT_SQL_STATEMENT_PROCESSOR.equals(
childIp.getProcessorType())) {
query = childIp.getProcessorName();
}
log.debug("child query1: " + query);
// check if parent has data
boolean parentHasData = false;
TableData parentRt = null;
if (returnTO != null) {
parentRt = returnTO.getTableData(ip.getProcessorName());
if (parentRt != null) {
int size = parentRt.getAllRows().size();
if (size > 0) parentHasData = true;
}
}
// construct child query
String childQuery = "";
if (query != null && connectorList.size() > 0 && parentHasData) {
childQuery = getNewChildQuery(query, childIp, parentRt.getAllRows());
} else {
childQuery = query;
}
log.debug("child query2: " + childQuery);
if (parentHasData) {
udc = findOrCreateConnection(childIp);
OmniDTO returnTO2 =
executeKeepConnection(
udc,
childIp.getInputs(),
DataProcessorTypes.DIRECT_SQL_STATEMENT_PROCESSOR,
childQuery,
childIp.getOutputFilters());
// merge child records with corresponding parent record
if (returnTO2 != null) {
linkParentWithChild(
parentRt,
returnTO2.getTableData(childQuery),
childIp.getProcessorName(),
connectorList);
}
log.debug("returnTO2: " + returnTO2);
}
}
} catch (SQLException ex) {
throw new BaseSQLException(ex);
} catch (BaseSQLException bdex) {
throw bdex;
} finally {
tm.releaseResourcesImplicit();
}
return returnTO;
}
