[Dive4elements-commits] [PATCH] Initial version of TIMParser, comments and TODOs by Felix Wolfsteller, Code by Sascha Teichmann

[Wald Commits]

# HG changeset patch
# User Sascha Teichmann <sascha.teichmann at intevation.de>
# Date 1356703003 -3600
# Node ID 7d9fcd322c45c7487e42f2d2a68457b82bf4b6ad
# Parent  1aca30035932ddd08f92b0a88a1c452b2c49d871
Initial version of TIMParser, comments and TODOs by Felix Wolfsteller, Code by Sascha Teichmann.

diff -r 1aca30035932 -r 7d9fcd322c45 flys-backend/src/main/java/de/intevation/flys/importer/parsers/tim/TIMParser.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/flys-backend/src/main/java/de/intevation/flys/importer/parsers/tim/TIMParser.java	Fri Dec 28 14:56:43 2012 +0100
@@ -0,0 +1,88 @@
+package de.intevation.flys.importer.parsers.tim;
+
+import java.io.BufferedReader;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStreamReader;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+import java.util.Map;
+import java.util.TreeMap;
+
+
+/** Parser for single .tim files. */
+// TODO switch to proper logging.
+public class TIMParser
+{
+    /** Proper encoding. */
+    public static final String ENCODING =
+        System.getProperty("tim.encoding", "ISO-8859-1");
+
+    /** Map of stations (km) to points (xyz). */
+    protected Map<Double, List<Coordinate>> lines;
+
+    public TIMParser() {
+        lines = new TreeMap<Double, List<Coordinate>>(EpsilonComparator.CMP);
+    }
+
+    /** Access map of stations (km) to coordinates (xyz). */
+    public Map<Double, List<Coordinate>> getLines() {
+        return lines;
+    }
+
+    /** Get number of lines (data). */
+    public int numLines() {
+        return lines.size();
+    }
+
+    /** Parse single .tim file. */
+    public void load(String filename) throws IOException {
+        BufferedReader reader =
+            new BufferedReader(
+            new InputStreamReader(
+            new FileInputStream(filename), ENCODING));
+        try {
+            String row;
+            while ((row = reader.readLine()) != null) {
+                if (row.length() < 54) {
+                    System.err.println("row too short");
+                    continue;
+                }
+                double station, x, y, z;
+                try {
+                    station = Double.parseDouble(row.substring( 9, 16))/1000d;
+                    x       = Double.parseDouble(row.substring(20, 30))/1000d;
+                    y       = Double.parseDouble(row.substring(30, 40))/1000d;
+                    z       = Double.parseDouble(row.substring(47, 54))/10000d;
+                } catch (NumberFormatException nfe) {
+                    System.err.println("Invalid row");
+                    continue;
+                }
+
+                Double km = station;
+
+                List<Coordinate> line = lines.get(km);
+                if (line == null) {
+                    line = new ArrayList<Coordinate>();
+                    lines.put(km, line);
+                }
+
+                line.add(new Coordinate(x, y, z));
+            }
+            // Bring coords in lexicographical order.
+            sortCoordinates();
+        } finally {
+            reader.close();
+        }
+    }
+
+    /** Sort coordinates of lines lexicographically. */
+    protected void sortCoordinates() {
+        for (List<Coordinate> line: lines.values()) {
+            Collections.sort(line, LexiComparator.CMP);
+        }
+    }
+}
+// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :