ConverterBean.java

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package com.sun.s1peqe.security.ssl.converter.ejb;

import java.rmi.RemoteException;
import javax.ejb.SessionBean;
import javax.ejb.SessionContext;
import java.math.*;

/**
 * A simple stateless bean for the Converter application. This bean implements all
 * business method as declared by the remote interface, <code>Converter</code>.
 *
 * @see Converter
 * @see ConverterHome
 */
public class ConverterBean implements SessionBean {

    BigDecimal yenRate = new BigDecimal("121.6000");
    BigDecimal euroRate = new BigDecimal("0.0077");
    SessionContext mysc = null;
    
    public String myCallerPrincipal(){
        return mysc.getCallerPrincipal().toString();
    }
    /**
     * Returns the yen value for a given dollar amount.
     * @param dollars dollar amount to be converted to yen.
     */
    public BigDecimal dollarToYen(BigDecimal dollars) {       
        BigDecimal result = dollars.multiply(yenRate);
        return result.setScale(2,BigDecimal.ROUND_UP);
    }

    /**
     * Returns the euro value for a given yen amount.
     * @param yen yen amount to be converted to euro.
     */
    public BigDecimal yenToEuro(BigDecimal yen) {
        BigDecimal result = yen.multiply(euroRate);
        return result.setScale(2,BigDecimal.ROUND_UP);
    }

    /**
     * Required by EJB spec.
     */
    public ConverterBean() {}

    /**
     * Creates a bean. Required by EJB spec.
     * @exception throws CreateException.
     */
    public void ejbCreate() {}

    /**
     * Removes the bean. Required by EJB spec.
     */
    public void ejbRemove() {}

    /**
     * Loads the state of the bean from secondary storage. Required by EJB spec.
     */
    public void ejbActivate() {}
    
    /**
     * Keeps the state of the bean to secondary storage. Required by EJB spec.
     */
    public void ejbPassivate() {}

    /**
     * Sets the session context. Required by EJB spec.
     * @param ctx A SessionContext object.
     */
   public void setSessionContext(SessionContext sc) {
        mysc = sc;
   }

} // ConverterBean