loanserviceimpl.java

An Example of a Loan Processing Service Using Globus Toolkit for Grid Services

package grid.loan.impl;

import org.globus.ogsa.impl.ogsi.GridServiceImpl;
import org.globus.ogsa.GridContext;
import org.globus.ogsa.GridServiceException;
import org.globus.ogsa.ServiceData;


import org.globus.ogsa.impl.ogsi.GridServiceImpl;
import grid.loan.LoanPortType;
import grid.loan.domain.LoanType;


import javax.xml.namespace.QName;

import java.rmi.RemoteException;

import java.util.*;


public class LoanServiceImpl extends GridServiceImpl
    implements LoanPortType {

    private HashMap loanActivity = new HashMap();

    public LoanServiceImpl() {
        super("Guide Service Data Counter");
    }

/*    public void postCreate(GridContext context) throws GridServiceException {
        super.postCreate(context);
    }*/


	public int createLoan(int loanNumber, double amountUPB) throws java.rmi.RemoteException{

		// Create the loan

		LoanType loan = new LoanType();

		loan.setLoanNumber(loanNumber);
		loan.setUPB(amountUPB);
		loan.setStatus("ACTIVE");
		loan.setCreateDate((new Date()).toString());

		loanActivity.put(new Integer(loan.getLoanNumber()), loan);

        return loanNumber;
    }

	public int processLoanPayment(int loanNumber, double amount) throws java.rmi.RemoteException{

		LoanType loan = (LoanType) loanActivity.get(new Integer(loanNumber));

		if (loan == null)
			return 0;

		System.out.println("Found loan " + loanNumber);

		// Update UPB
		loan.setUPB(loan.getUPB() - amount);

		// Change the status if the loan is paid off
		if (loan.getUPB() == 0)
			loan.setStatus("PAIDOFF");

		loanActivity.put(new Integer(loanNumber), loan);

        return loanNumber;
    }


	public LoanType getLoan(int loanNumber) throws java.rmi.RemoteException{

		LoanType loan = (LoanType) loanActivity.get(new Integer(loanNumber));
		if (loan == null){
			System.out.println("===> Loan " + loanNumber + " not found");
		}
		return loan;
	}

}