private void manageFilterOnDomainValues(
StringBuffer buffer,
String fieldName,
IDataSetTableDescriptor tableDescriptor,
IDataStoreFilter filter) {
if (filter != null) {
String filterColumnName = tableDescriptor.getColumnName(fieldName);
if (filterColumnName == null) {
throw new SpagoBIRuntimeException("Field name [" + fieldName + "] not found");
}
String columnName = tableDescriptor.getColumnName(fieldName);
Class clazz = tableDescriptor.getColumnType(fieldName);
String value = getFilterValue(filter.getValue(), clazz);
IConditionalOperator conditionalOperator =
(IConditionalOperator) SQLStatementConditionalOperators.getOperator(filter.getOperator());
String temp = conditionalOperator.apply(columnName, new String[] {value});
buffer.append(" WHERE " + temp);
}
}
public IDataStore getDomainValues(
String fieldName, Integer start, Integer limit, IDataStoreFilter filter) {
IDataStore toReturn = null;
try {
String tableName = this.getTemporaryTableName();
logger.debug("Temporary table name : [" + tableName + "]");
if (tableName == null) {
logger.error("Temporary table name not set, cannot proceed!!");
throw new SpagoBIEngineRuntimeException("Temporary table name not set");
}
IDataSource dataSource = this.getDataSourceForPersistence();
if (dataSource == null) {
logger.error("Datasource for persistence not set, cannot proceed!!");
throw new SpagoBIEngineRuntimeException("Datasource for persistence not set");
}
String signature = this.getSignature();
IDataSetTableDescriptor tableDescriptor = null;
if (signature.equals(TemporaryTableManager.getLastDataSetSignature(tableName))) {
// signature matches: no need to create a TemporaryTable
tableDescriptor = TemporaryTableManager.getLastDataSetTableDescriptor(tableName);
} else {
tableDescriptor = this.persist(tableName, dataSource);
TemporaryTableManager.setLastDataSetTableDescriptor(tableName, tableDescriptor);
TemporaryTableManager.setLastDataSetSignature(tableName, signature);
}
String filterColumnName = tableDescriptor.getColumnName(fieldName);
StringBuffer buffer =
new StringBuffer("Select DISTINCT " + filterColumnName + " FROM " + tableName);
manageFilterOnDomainValues(buffer, fieldName, tableDescriptor, filter);
String sqlStatement = buffer.toString();
toReturn = TemporaryTableManager.queryTemporaryTable(sqlStatement, dataSource, start, limit);
toReturn.getMetaData().changeFieldAlias(0, fieldName);
} catch (Exception e) {
logger.error("Error loading the domain values for the field " + fieldName, e);
throw new SpagoBIEngineRuntimeException(
"Error loading the domain values for the field " + fieldName, e);
}
return toReturn;
}
