Let us try to create convert Drools decision table (excel spread sheet) to a (.DRL) file in Drools.
The SpreadsheetCompiler class is used to convert the input XLS and CSV file to a (.DRL) fișier. The required package is “org.drools.decisiontable.SpreadsheetCompiler”.You need to use the compile () method of this class to do the conversion. Following example shows the processs.
Example program:-
import java.io.FileInputStream;
de import java.io.FileNotFoundException;
import java.io.InputStream;
de import org.drools.decisiontable.InputType;
de import org.drools.decisiontable.SpreadsheetCompiler;
public class ExcelToDrlDemo {
public static void main(String args[]) {
// create an input stream
InputStream is = nul;
încerca {
// assign the excel to the input stream
// mention the local directory path where your excel is kept
// you can take any decision table (excel sheet) for testing
este = new FileInputStream(“D:/Workspace/TestProj/src/ExamplePolicyPricing.xls”);
} prinde (FileNotFoundException e) {
e.printStackTrace();
}
// create compiler class instance
SpreadsheetCompiler sc = new SpreadsheetCompiler();
// compile the excel to generate the (.DRL) fișier
String drl=sc.compile(este, InputType.XLS);
// check the generated (.DRL) fișier
Println(“Generate DRL file is –: “);
Println(DRL);
}
}
