diff flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/Segment.java @ 650:6695e03e9b82

Added parser for segments flys-artifacts/trunk@2043 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Wed, 01 Jun 2011 17:01:44 +0000
parents
children 913b52064449
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/flys-artifacts/src/main/java/de/intevation/flys/artifacts/model/Segment.java	Wed Jun 01 17:01:44 2011 +0000
@@ -0,0 +1,79 @@
+package de.intevation.flys.artifacts.model;
+
+import java.util.List;
+import java.util.ArrayList;
+
+import java.io.Serializable;
+
+import org.apache.log4j.Logger;
+
+import gnu.trove.TDoubleArrayList;
+
+public class Segment
+implements   Serializable
+{
+    private static Logger logger = Logger.getLogger(Segment.class);
+
+    protected double    from;
+    protected double    to;
+    protected double [] values;
+
+    public Segment() {
+    }
+
+    public Segment(double from, double to, double [] values) {
+        this.from   = from;
+        this.to     = to;
+        this.values = values;
+    }
+
+    public boolean isUp() {
+        return from < to;
+    }
+
+    public String toString() {
+        StringBuilder sb = new StringBuilder("Segment: [");
+        sb.append("from: ").append(from).append("; to: ")
+          .append(to).append("; values: (");
+        for (int i = 0; i < values.length; ++i) {
+            if (i > 0) sb.append(", ");
+            sb.append(values[i]);
+        }
+        sb.append(")]");
+        return sb.toString();
+    }
+
+    public static List<Segment> parseSegments(String input) {
+
+        ArrayList<Segment> segments = new ArrayList<Segment>();
+
+        TDoubleArrayList vs = new TDoubleArrayList();
+
+        for (String segmentStr: input.split(":")) {
+            String [] parts = segmentStr.split(";");
+            if (parts.length < 3) {
+                logger.warn("invalid segment: '" + segmentStr + "'");
+                continue;
+            }
+            try {
+                double from = Double.parseDouble(parts[0].trim());
+                double to   = Double.parseDouble(parts[1].trim());
+
+                vs.clear();
+
+                for (String valueStr: parts[2].split(",")) {
+                    vs.add(Double.parseDouble(valueStr.trim()));
+                }
+
+                double [] values = vs.toNativeArray();
+                segments.add(new Segment(from, to, values));
+            }
+            catch (NumberFormatException nfe) {
+                logger.warn("invalid segment: '" + segmentStr + "'");
+            }
+        }
+
+        return segments;
+    }
+}
+// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :

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