contd sic insitu

Author: TomBlock

core/src/main/java/com/bc/fiduceo/reader/insitu/sic_cci/ReferenceDataSection.java

@@ -0,0 +1,28 @@
+package com.bc.fiduceo.reader.insitu.sic_cci;
+
+import org.esa.snap.core.datamodel.ProductData;
+
+import java.text.ParseException;
+import java.util.Date;
+
+class ReferenceDataSection {
+
+    private static final String DATE_PATTERN = "yyyy-MM-dd'T'HH:mm:ss'Z'";
+
+    private Date time;
+
+    void parseTime(String line) throws ParseException {
+        // todo 2 add some tests for negative indices tb 2022-11-03
+        int first = line.indexOf(",");
+        int startIndex = line.indexOf(",", first + 1) + 1;
+        int stopIndex = line.indexOf(",", startIndex);
+
+        final String timeString = line.substring(startIndex, stopIndex);
+        ProductData.UTC utcTime = ProductData.UTC.parse(timeString, DATE_PATTERN);
+        time = utcTime.getAsDate();
+    }
+
+    public Date getTime() {
+        return time;
+    }
+}

core/src/main/java/com/bc/fiduceo/reader/insitu/sic_cci/SicCciInsituReader.java

@@ -2,6 +2,7 @@
 
 import com.bc.fiduceo.core.Dimension;
 import com.bc.fiduceo.core.Interval;
+import com.bc.fiduceo.core.NodeType;
 import com.bc.fiduceo.geometry.Polygon;
 import com.bc.fiduceo.location.PixelLocator;
 import com.bc.fiduceo.reader.AcquisitionInfo;
@@ -16,7 +17,9 @@
 import java.io.File;
 import java.io.FileReader;
 import java.io.IOException;
+import java.text.ParseException;
 import java.util.ArrayList;
+import java.util.Date;
 import java.util.List;
 
 public class SicCciInsituReader implements Reader {
@@ -30,10 +33,18 @@ public class SicCciInsituReader implements Reader {
     public void open(File file) throws IOException {
         fileReader = new FileReader(file);
 
+        readLines();
+    }
+
+    private void readLines() throws IOException {
         linelist = new ArrayList<>();
         final BufferedReader bufferedReader = new BufferedReader(fileReader);
         String line;
         while ((line = bufferedReader.readLine()) != null) {
+            if (line.startsWith("#")) {
+                // skip comment lines tb 2022-11-03
+                continue;
+            }
             linelist.add(line);
         }
     }
@@ -52,7 +63,12 @@ public void close() throws IOException {
 
     @Override
     public AcquisitionInfo read() throws IOException {
-        throw new RuntimeException("not implemented");
+        final AcquisitionInfo acquisitionInfo = new AcquisitionInfo();
+        acquisitionInfo.setNodeType(NodeType.UNDEFINED);
+
+        parseSensingTimes(acquisitionInfo);
+
+        return acquisitionInfo;
     }
 
     @Override
@@ -114,4 +130,27 @@ public String getLongitudeVariableName() {
     public String getLatitudeVariableName() {
         return "latitude";
     }
+
+    private void parseSensingTimes(AcquisitionInfo acquisitionInfo) throws IOException {
+        Date minDate = new Date(Long.MAX_VALUE);
+        Date maxDate = new Date(0);
+        final ReferenceDataSection referenceDataSection = new ReferenceDataSection();
+        try {
+            for (String line :linelist) {
+                referenceDataSection.parseTime(line);
+                final Date refTime = referenceDataSection.getTime();
+                if (minDate.after(refTime)) {
+                    minDate = refTime;
+                }
+                if (maxDate.before(refTime)){
+                    maxDate = refTime;
+                }
+
+                acquisitionInfo.setSensingStart(minDate);
+                acquisitionInfo.setSensingStop(maxDate);
+            }
+        } catch (ParseException e) {
+            throw new IOException(e.getMessage());
+        }
+    }
 }

core/src/test/java/com/bc/fiduceo/reader/insitu/sic_cci/ReferenceDataSectionTest.java

@@ -0,0 +1,19 @@
+package com.bc.fiduceo.reader.insitu.sic_cci;
+
+import com.bc.fiduceo.TestUtil;
+import org.junit.Test;
+
+import java.text.ParseException;
+
+public class ReferenceDataSectionTest {
+
+    @Test
+    public void testParse() throws ParseException {
+        final String lineStart = "-59.000,+090.000,2016-01-01T08:00:00Z,ICECHART_DMI,0.0,-59.000,+090.000, ...";
+
+        final ReferenceDataSection section = new ReferenceDataSection();
+        section.parseTime(lineStart);
+
+        TestUtil.assertCorrectUTCDate(2016, 1, 1, 8, 0, 0, section.getTime());
+    }
+}

core/src/test/java/com/bc/fiduceo/reader/insitu/sic_cci/SciCciInsituReader_IO_Test.java

@@ -2,13 +2,18 @@
 
 import com.bc.fiduceo.IOTestRunner;
 import com.bc.fiduceo.TestUtil;
+import com.bc.fiduceo.core.NodeType;
+import com.bc.fiduceo.reader.AcquisitionInfo;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 
 import java.io.File;
 import java.io.IOException;
 
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNull;
+
 @RunWith(IOTestRunner.class)
 public class SciCciInsituReader_IO_Test {
 
@@ -26,6 +31,13 @@ public void testReadAcquisitionInfo() throws IOException {
 
         try {
             reader.open(testFile);
+
+            final AcquisitionInfo acquisitionInfo = reader.read();
+            TestUtil.assertCorrectUTCDate(2016, 1, 1, 1, 0, 0, acquisitionInfo.getSensingStart());
+            TestUtil.assertCorrectUTCDate(2016, 12, 31, 16, 0, 0, acquisitionInfo.getSensingStop());
+
+            assertEquals(NodeType.UNDEFINED, acquisitionInfo.getNodeType());
+            assertNull(acquisitionInfo.getBoundingGeometry());
         } finally {
             reader.close();
         }