teichmann@5829: package org.dive4elements.river.importer;
sascha@185: 
teichmann@5829: import org.dive4elements.river.model.Range;
teichmann@5829: import org.dive4elements.river.model.River;
sascha@188: 
sascha@188: import java.math.BigDecimal;
sascha@188: 
sascha@188: import org.apache.log4j.Logger;
sascha@188: 
felix@4713: /** A range that is about to be imported. */
sascha@185: public class ImportRange
sascha@186: implements   Comparable<ImportRange>
sascha@185: {
felix@4713:     /** Private logger. */
sascha@188:     private static Logger log = Logger.getLogger(ImportRange.class);
sascha@188: 
sascha@189:     protected BigDecimal a;
sascha@189:     protected BigDecimal b;
sascha@188: 
sascha@188:     protected Range peer;
sascha@185: 
sascha@185:     public ImportRange() {
sascha@185:     }
sascha@185: 
sascha@189:     public ImportRange(BigDecimal a, BigDecimal b) {
sascha@189:         this.a = a;
sascha@189:         this.b = b;
sascha@186:     }
sascha@186: 
sascha@189:     private static final int compare(BigDecimal a, BigDecimal b) {
sascha@186:         if (a == null && b == null) {
sascha@186:             return 0;
sascha@186:         }
sascha@186:         if (a == null && b != null) {
sascha@186:             return -1;
sascha@186:         }
sascha@186:         if (a != null && b == null) {
sascha@186:             return +1;
sascha@186:         }
sascha@186:         return a.compareTo(b);
sascha@186:     }
sascha@186: 
teichmann@5542:     public void fixRangesOrder() {
teichmann@5542:         if (compare(a, b) > 0) {
teichmann@5542:             BigDecimal t = a; a = b; b = t;
teichmann@5542:         }
teichmann@5542:     }
teichmann@5542: 
sascha@186:     public int compareTo(ImportRange other) {
sascha@189:         int cmp = compare(a, other.a);
sascha@186:         if (cmp != 0) return cmp;
sascha@189:         return compare(b, other.b);
sascha@185:     }
sascha@185: 
sascha@189:     public BigDecimal getA() {
sascha@189:         return a;
sascha@185:     }
sascha@185: 
sascha@189:     public void setA(BigDecimal a) {
sascha@189:         this.a = a;
sascha@185:     }
sascha@185: 
sascha@189:     public BigDecimal getB() {
sascha@189:         return b;
sascha@189:     }
sascha@189: 
sascha@189:     public void setB(BigDecimal b) {
sascha@189:         this.b = b;
sascha@185:     }
sascha@188: 
sascha@188:     public Range getPeer(River river) {
sascha@188:         if (peer == null) {
sascha@500:             peer = ImporterSession.getInstance().getRange(river, a, b);
sascha@188:         }
sascha@188:         return peer;
sascha@188:     }
sascha@185: }
sascha@185: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :