sascha@674: package de.intevation.flys.artifacts.model;
sascha@674: 
sascha@674: import org.w3c.dom.Document;
sascha@674: import org.w3c.dom.Element;
sascha@674: 
sascha@674: import java.util.List;
sascha@674: import java.util.ArrayList;
sascha@674: 
sascha@674: public class Calculation
sascha@674: {
sascha@674:     public static class Problem {
sascha@674: 
sascha@674:         protected Double km;
sascha@674:         protected String msg;
sascha@674: 
sascha@674:         public Problem() {
sascha@674:         }
sascha@674: 
sascha@674:         public Problem(String msg) {
sascha@674:             this.msg = msg;
sascha@674:         }
sascha@674: 
sascha@674:         public Problem(double km, String msg) {
sascha@674:             this.km  = km;
sascha@674:             this.msg = msg;
sascha@674:         }
sascha@674: 
sascha@674:         public Element toXML(Document document) {
sascha@674:             Element problem = document.createElement("problem");
sascha@674:             if (km != null) {
sascha@674:                 problem.setAttribute("km", String.valueOf(km));
sascha@674:             }
sascha@674:             problem.setTextContent(msg);
sascha@674:             return problem;
sascha@674:         }
sascha@674:     } // class Problem
sascha@674: 
sascha@674:     protected List<Problem> problems;
sascha@674: 
sascha@674:     public Calculation() {
sascha@674:     }
sascha@674: 
sascha@674:     protected List<Problem> checkProblems() {
sascha@674:         if (problems == null) {
sascha@674:             problems = new ArrayList<Problem>();
sascha@674:         }
sascha@674:         return problems;
sascha@674:     }
sascha@674: 
sascha@674:     public void addProblem(String msg) {
sascha@674:         checkProblems().add(new Problem(msg));
sascha@674:     }
sascha@674: 
sascha@674:     public void addProblem(double km, String msg) {
sascha@674:         checkProblems().add(new Problem(km, msg));
sascha@674:     }
sascha@674: 
sascha@674:     public boolean hasProblems() {
sascha@674:         return problems != null && !problems.isEmpty();
sascha@674:     }
sascha@674: 
sascha@674:     public List<Problem> getProblems() {
sascha@674:         return problems;
sascha@674:     }
sascha@674: 
sascha@674:     public void toXML(Document document) {
sascha@674: 
sascha@674:         Element root = document.createElement("problems");
sascha@674: 
sascha@674:         if (hasProblems()) {
sascha@674:             for (Problem problem: problems) {
sascha@674:                 root.appendChild(problem.toXML(document));
sascha@674:             }
sascha@674:         }
sascha@674: 
sascha@674:         document.appendChild(root);
sascha@674:     }
sascha@674: }
sascha@674: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :