Update of /cvsroot/tcotool/TCO-Tool/src/org/tcotool/tools
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv4183/src/org/tcotool/tools
Added Files:
CourseUtils.java
Log Message:
New
--- NEW FILE: CourseUtils.java ---
package org.tcotool.tools;
/*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
import java.util.ArrayList;
import org.tcotool.application.LauncherView;
import org.tcotool.model.Course;
import org.tcotool.model.Currency;
import ch.softenvironment.util.UserException;
/**
* @author Peter Hirzel <i>soft</i>Environment
* @version $Revision: 1.1 $ $Date: 2006/05/07 14:55:32 $
*/
public class CourseUtils {
/**
* Return the targetAmount, which is:
* targetAmount = sourceAmount * factor
* @see #getCourse(Currency, Currency)
*/
public static double getAmount(double sourceAmount, Currency source, Currency target) throws UserException {
return sourceAmount * getCourse(source, target);
}
/**
* Return a course between source- and target-Currency.
* @param source
* @param target
* @return
* @throws UserException
*/
public static double getCourse(Currency source, Currency target) throws UserException {
//TODO NLS
if ((source == null) || (target == null)) {
throw new IllegalArgumentException("source AND target must not be null");
}
if (source.equals(target)) {
// no transformation at all
return 1.0;
}
java.util.List list = null;
try {
list = LauncherView.getInstance().getUtility().getSystemParameter().getCourse();
} catch(Throwable e) {
LauncherView.getInstance().handleException(e);
list = new ArrayList();
}
java.util.Iterator it = list.iterator();
while (it.hasNext()) {
Course course = (Course)it.next();
if (source.equals(course.getSource()) && target.equals(course.getTarget())) {
// straight
return course.getFactor().doubleValue();
}
if (source.equals(course.getTarget()) && target.equals(course.getSource())) {
// 1/x
return 1.0 / course.getFactor().doubleValue();
}
}
throw new UserException(CourseUtils.class, "getCourse()", "No course defined for <" + source.getNameString() + "> to <" + target.getNameString() + ">");
}
}
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