ingo@686: package de.intevation.flys.artifacts.model;
ingo@686: 
ingo@686: import org.w3c.dom.Document;
ingo@686: import org.w3c.dom.Element;
ingo@686: 
ingo@686: import java.util.List;
ingo@686: import java.util.ArrayList;
sascha@2166: import java.util.Arrays;
ingo@686: 
ingo@686: import java.io.Serializable;
ingo@686: 
sascha@710: import de.intevation.artifacts.CallMeta;
sascha@710: 
sascha@2166: import de.intevation.flys.artifacts.resources.Resources;
sascha@2166: 
sascha@2290: import de.intevation.flys.utils.Formatter;
sascha@2290: 
felix@4274: /** A calculation that can have result and problems. */
ingo@686: public class Calculation
ingo@686: implements   Serializable
ingo@686: {
felix@4274:     /** Problem of a calculation.
felix@4274:      * Has location and message. */
sascha@742:     public static class Problem
ingo@686:     implements          Serializable
ingo@686:     {
sascha@2166:         protected Double    km;
sascha@2166:         protected String    msg;
sascha@2166:         protected Object [] args;
ingo@686: 
ingo@686:         public Problem() {
ingo@686:         }
ingo@686: 
ingo@686:         public Problem(String msg) {
ingo@686:             this.msg = msg;
ingo@686:         }
ingo@686: 
sascha@2166:         public Problem(String msg, Object [] args) {
sascha@2166:             this.msg  = msg;
sascha@2166:             this.args = args;
sascha@2166:         }
sascha@2166: 
ingo@686:         public Problem(double km, String msg) {
ingo@686:             this.km  = km;
ingo@686:             this.msg = msg;
ingo@686:         }
ingo@686: 
sascha@2166:         public Problem(double km, String msg, Object [] args) {
sascha@2166:             this.km   = km;
sascha@2166:             this.msg  = msg;
sascha@2166:             this.args = args;
sascha@2166:         }
sascha@2166: 
sascha@710:         public Element toXML(Document document, CallMeta meta) {
ingo@686:             Element problem = document.createElement("problem");
ingo@686:             if (km != null) {
sascha@2290:                 problem.setAttribute(
sascha@2290:                     "km",
sascha@2290:                     Formatter.getCalculationKm(meta).format(km));
ingo@686:             }
sascha@2166:             String text = args != null
sascha@2211:                 ? Resources.getMsg(meta, msg, msg, args)
sascha@2211:                 : Resources.getMsg(meta, msg, msg);
sascha@2166:             problem.setTextContent(text);
ingo@686:             return problem;
ingo@686:         }
sascha@2166: 
sascha@2166:         @Override
sascha@2166:         public boolean equals(Object other) {
sascha@2166:             if (!(other instanceof Problem)) {
sascha@2166:                 return false;
sascha@2166:             }
sascha@2166:             Problem o = (Problem)other;
sascha@2166:             return !(!msg.equals(o.msg)
sascha@2166:                 || (km == null && o.km != null)
sascha@2166:                 || (km != null && o.km == null)
sascha@2166:                 || (km != null && !km.equals(o.km))
sascha@2166:                 || !Arrays.equals(args, o.args));
sascha@2166:         }
ingo@686:     } // class Problem
ingo@686: 
ingo@686:     protected List<Problem> problems;
ingo@686: 
ingo@686:     public Calculation() {
ingo@686:     }
ingo@686: 
sascha@709:     public Calculation(String msg) {
sascha@709:         addProblem(msg);
sascha@709:     }
sascha@709: 
ingo@686:     protected List<Problem> checkProblems() {
ingo@686:         if (problems == null) {
ingo@686:             problems = new ArrayList<Problem>();
ingo@686:         }
ingo@686:         return problems;
ingo@686:     }
ingo@686: 
sascha@2624:     public void addProblems(Calculation other) {
sascha@2624:         List<Problem> otherProblems = other.problems;
sascha@2624:         if (otherProblems != null) {
sascha@2624:             List<Problem> problems = checkProblems();
sascha@2624:             for (Problem problem: otherProblems) {
sascha@2624:                 if (!problems.contains(problem)) {
sascha@2624:                     problems.add(problem);
sascha@2624:                 }
sascha@2624:             }
sascha@2624:         }
sascha@2624:     }
sascha@2624: 
sascha@2166:     public void addProblem(Problem problem) {
sascha@2166:         List<Problem> problems = checkProblems();
sascha@2166:         if (!problems.contains(problem)) {
sascha@2166:             problems.add(problem);
sascha@2166:         }
sascha@2166:     }
sascha@2166: 
ingo@686:     public void addProblem(String msg) {
sascha@2166:         addProblem(new Problem(msg));
sascha@2166:     }
sascha@2166: 
sascha@2166:     public void addProblem(String msg, Object ... args) {
sascha@2166:         addProblem(new Problem(msg, args));
ingo@686:     }
ingo@686: 
ingo@686:     public void addProblem(double km, String msg) {
sascha@2166:         addProblem(new Problem(km, msg));
sascha@2166:     }
sascha@2166: 
sascha@2166:     public void addProblem(double km, String msg, Object ... args) {
sascha@2166:         addProblem(new Problem(km, msg, args));
ingo@686:     }
ingo@686: 
ingo@686:     public boolean hasProblems() {
ingo@686:         return problems != null && !problems.isEmpty();
ingo@686:     }
ingo@686: 
ingo@686:     public int numProblems() {
ingo@686:         return problems != null ? problems.size() : 0;
ingo@686:     }
ingo@686: 
ingo@686:     public List<Problem> getProblems() {
ingo@686:         return problems;
ingo@686:     }
ingo@686: 
sascha@710:     public void toXML(Document document, CallMeta meta) {
ingo@686: 
ingo@686:         Element root = document.createElement("problems");
ingo@686: 
ingo@686:         if (hasProblems()) {
ingo@686:             for (Problem problem: problems) {
sascha@710:                 root.appendChild(problem.toXML(document, meta));
ingo@686:             }
ingo@686:         }
ingo@686: 
ingo@686:         document.appendChild(root);
ingo@686:     }
ingo@686: }
ingo@686: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :