intermediate

Author: TomBlock

core/src/main/java/com/bc/fiduceo/reader/insitu/ndbc/Station.java

@@ -0,0 +1,38 @@
+package com.bc.fiduceo.reader.insitu.ndbc;
+
+class Station {
+
+    private final String id;
+    private float lon;
+    private float lat;
+    private float anHeight;
+    private StationType type;
+
+    Station(String id) {
+        this.id = id;
+
+        lon = Float.NaN;
+        lat = Float.NaN;
+        anHeight = Float.NaN;
+    }
+
+    String getId() {
+        return id;
+    }
+
+     float getLon() {
+        return lon;
+    }
+
+     float getLat() {
+        return lat;
+    }
+
+    public StationType getType() {
+        return type;
+    }
+
+    public float getAnemometerHeight() {
+        return anHeight;
+    }
+}

core/src/main/java/com/bc/fiduceo/reader/insitu/ndbc/StationDatabase.java

@@ -0,0 +1,63 @@
+package com.bc.fiduceo.reader.insitu.ndbc;
+
+import org.esa.snap.core.util.StringUtils;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.util.ArrayList;
+import java.util.HashMap;
+
+class StationDatabase {
+
+    private static final int CW_STATION_TOKENS = 5;
+    private static final int SM_STATION_TOKENS = 8;
+
+    private final HashMap<String, Station> stationMap;
+
+    StationDatabase() {
+        stationMap = new HashMap<>();
+    }
+
+    void load(InputStream inputStream) throws IOException {
+        final ArrayList<String> lineList = readInputLines(inputStream);
+
+        final String firstLine = lineList.get(0);
+        final String[] tokens = StringUtils.split(firstLine, new char[]{'|'}, false);
+        if (tokens.length == CW_STATION_TOKENS) {
+            parseCwStation(lineList);
+        } else if (tokens.length == SM_STATION_TOKENS) {
+            parseSmStations(lineList);
+        } else {
+            throw new IllegalArgumentException("unknown input data format");
+        }
+
+    }
+
+    private void parseSmStations(ArrayList<String> lineList) {
+
+    }
+
+    private void parseCwStation(ArrayList<String> lineList) {
+
+    }
+
+    private static ArrayList<String> readInputLines(InputStream inputStream) throws IOException {
+        final ArrayList<String> lineList = new ArrayList<>();
+        final BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream));
+        String line;
+        while ((line = reader.readLine()) != null) {
+            if (line.startsWith("#")) {
+                // skip comment lines tb 2022-11-03
+                continue;
+            }
+            lineList.add(line);
+        }
+        return lineList;
+    }
+
+    Station get(String id) {
+        return new Station(id);
+    }
+}

…o/reader/insitu/ndbc/InstrumentType.java …uceo/reader/insitu/ndbc/StationType.javacore/src/main/java/com/bc/fiduceo/reader/insitu/ndbc/InstrumentType.java renamed to core/src/main/java/com/bc/fiduceo/reader/insitu/ndbc/StationType.java core/src/main/java/com/bc/fiduceo/reader/insitu/ndbc/InstrumentType.java renamed to core/src/main/java/com/bc/fiduceo/reader/insitu/ndbc/StationType.java

@@ -1,6 +1,6 @@
 package com.bc.fiduceo.reader.insitu.ndbc;
 
-enum InstrumentType {
+enum StationType {
     OCEAN_BUOY,     // > 5km distance to land
     COAST_BUOY,     // <= 5km distance to land
     LAKE_BUOY,      // inland water

core/src/main/resources/com/bc/fiduceo/reader.nbdc/buoy_locations_sm.txt

@@ -370,4 +370,13 @@ OLCN6     | 43.341   | -78.719   | LAKE_STATION   | 10.0              | 8.0
 OLSA2     | 52.94    | -168.87   | COAST_STATION  | 8.4               | 7.8             | 7.3              | NaN
 ORIN7     | 35.796   | -75.548   | COAST_STATION  | 6.7               | 5.2             | 4.1              | 0.8
 OSGN6     | 43.464   | -76.511   | LAKE_STATION   | 14.9              | 10.5            | 78.2             | NaN
-PCBF1     | 30.213   | -85.88    | COAST_STATION  | 8.6               | 3.3             | 9.1              | NaN
+PCBF1     | 30.213   | -85.88    | COAST_STATION  | 8.6               | 3.3             | 9.1              | NaN
+PCLM4     | 47.276   | -88.528   | LAKE_STATION   | 10.0              | 2.7             | 198.4            | NaN
+PCLM4     | 33.735   | -118.241  | COAST_STATION  | 10.7              | NaN             | NaN              | NaN
+PFXC1     | 33.747   | -118.215  | COAST_STATION  | 22.9              | 22.9            | NaN              | NaN
+PGBP7     | 13.428   | 144.796   | COAST_STATION  | 14.3              | 10.5            | NaN              | NaN
+PILA2     | 59.742   | -149.47   | COAST_STATION  | 6.6               | 6.4             | 25.0             | NaN
+PILM4     | 48.223   | -88.366   | LAKE_STATION   | 15.5              | 9.8             | 230.4            | NaN
+PLSF1     | 24.693   | -82.773   | OCEAN_STATION  | 17.7              | 17.4            | 15.8             | 1.5
+PLXA2     | 56.247   | -134.647  | COAST_STATION  | 8.5               | 7.9             | 5.6              | 4.0
+PMOA2     | 55.99    | -160.562  | COAST_STATION  | 13.2              | 7.3             | 5.4              | 1.9

core/src/test/java/com/bc/fiduceo/reader/insitu/ndbc/StationDatabaseTest.java

@@ -0,0 +1,33 @@
+package com.bc.fiduceo.reader.insitu.ndbc;
+
+import org.junit.Test;
+
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+
+import static org.junit.Assert.assertEquals;
+
+public class StationDatabaseTest {
+
+    @Test
+    public void testLoadAndGet_CW() throws IOException {
+        final String resourceFile = "# buoy ID | latitude | longitude | type          | anemometer height\n" +
+                "41002     | 31.759   | -74.936   | OCEAN_BUOY    | 4.1\n" +
+                "41004     | 32.502   | -79.099   | OCEAN_BUOY    | 4.1\n" +
+                "41008     | 31.4     | -80.866   | OCEAN_BUOY    | 4.9\n" +
+                "41010     | 28.878   | -78.485   | OCEAN_BUOY    | 4.1";
+
+        final ByteArrayInputStream inputStream = new ByteArrayInputStream(resourceFile.getBytes());
+
+        final StationDatabase stationDatabase = new StationDatabase();
+        stationDatabase.load(inputStream);
+
+        Station station = stationDatabase.get("41002");
+        assertEquals("41002", station.getId());
+        // @todo 1 tb/tb continue here 2023-02-22
+        //assertEquals(31.759f, station.getLat(), 1e-8);
+
+        station = stationDatabase.get("41004");
+        assertEquals("41004", station.getId());
+    }
+}

core/src/test/java/com/bc/fiduceo/reader/insitu/ndbc/StationTest.java

@@ -0,0 +1,20 @@
+package com.bc.fiduceo.reader.insitu.ndbc;
+
+import org.junit.Test;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNull;
+
+public class StationTest {
+
+    @Test
+    public void testConstruction() {
+        final Station station = new Station("abgdzt");
+
+        assertEquals("abgdzt", station.getId());
+        assertEquals(Float.NaN, station.getLon(), 1e-8);
+        assertEquals(Float.NaN, station.getLat(), 1e-8);
+        assertNull(station.getType());
+        assertEquals(Float.NaN, station.getAnemometerHeight(), 1e-8);
+    }
+}