Importing all the source code :)

2010-05-19 17:32:31 -07:00
parent 6d5d406ce9
commit 27dd5298f7
93 changed files with 18381 additions and 61 deletions
@@ -0,0 +1,176 @@
+/*
+ * Copyright 2010 Google Inc.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ * 
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.google.android.apps.mytracks.io;
+
+import com.google.android.apps.mytracks.content.Track;
+import com.google.android.apps.mytracks.content.Waypoint;
+import com.google.android.apps.mytracks.io.TrackWriterFactory.TrackFileFormat;
+
+import android.location.Location;
+import android.os.Environment;
+
+import java.io.OutputStream;
+import java.io.PrintWriter;
+import java.text.SimpleDateFormat;
+import java.util.Date;
+import java.util.TimeZone;
+
+/**
+ * Exports a track as a CSV file, according to RFC 4180.
+ *
+ * The first field is a type:
+ * TRACK - track description
+ * P - point
+ * WAYPOINT - waypoint
+ *
+ * For each type, the fields are:
+ *
+ * TRACK,,,,,,,,name,description,
+ * P,time,lat,lon,alt,bearing,accurancy,speed,,,segmentIdx
+ * WAYPOINT,time,lat,lon,alt,bearing,accuracy,speed,name,description,
+ *
+ * @author Rodrigo Damazio
+ */
+public class CsvTrackWriter implements TrackFormatWriter {
+  static final SimpleDateFormat TIMESTAMP_FORMAT =
+      new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss'Z'");
+  {
+    TIMESTAMP_FORMAT.setTimeZone(TimeZone.getTimeZone("UTC"));
+  }
+
+  private int segmentIdx = 0;
+  private int numFields = -1;
+  private PrintWriter pw;
+  private Track track;
+
+  @Override
+  public String getDefaultDirectory() {
+    return Environment.getExternalStorageDirectory()
+        + System.getProperty("file.separator")
+        + getExtension();
+  }
+
+  @Override
+  public String getExtension() {
+    return TrackFileFormat.CSV.getExtension();
+  }
+
+  @Override
+  public void prepare(Track track, OutputStream out) {
+    this.track = track;
+    this.pw = new PrintWriter(out);
+  }
+
+  @Override
+  public void writeHeader() {
+    writeCommaSeparatedLine("TYPE", "TIME", "LAT", "LON", "ALT", "BEARING",
+        "ACCURACY", "SPEED", "NAME", "DESCRIPTION", "SEGMENT");
+  }
+
+  @Override
+  public void writeBeginTrack(Location firstPoint) {
+    writeCommaSeparatedLine("TRACK",
+        null, null, null, null, null, null, null,
+        track.getName(), track.getDescription(),
+        null);
+  }
+
+  @Override
+  public void writeOpenSegment() {
+    // Do nothing
+  }
+
+  @Override
+  public void writeLocation(Location location) {
+    String timeStr = TIMESTAMP_FORMAT.format(new Date(location.getTime()));
+    writeCommaSeparatedLine("P",
+        timeStr,
+        Double.toString(location.getLatitude()),
+        Double.toString(location.getLongitude()),
+        Double.toString(location.getAltitude()),
+        Double.toString(location.getBearing()),
+        Double.toString(location.getAccuracy()),
+        Double.toString(location.getSpeed()),
+        null, null,
+        Integer.toString(segmentIdx));
+  }
+
+  @Override
+  public void writeWaypoint(Waypoint waypoint) {
+    Location location = waypoint.getLocation();
+    String timeStr = TIMESTAMP_FORMAT.format(new Date(location.getTime()));
+    writeCommaSeparatedLine("WAYPOINT",
+        timeStr,
+        Double.toString(location.getLatitude()),
+        Double.toString(location.getLongitude()),
+        Double.toString(location.getAltitude()),
+        Double.toString(location.getBearing()),
+        Double.toString(location.getAccuracy()),
+        Double.toString(location.getSpeed()),
+        waypoint.getName(),
+        waypoint.getDescription(),
+        null);
+  }
+
+  /**
+   * Writes a single line of a comma-separated-value file.
+   *
+   * @param strs the values to be written as comma-separated
+   */
+  private void writeCommaSeparatedLine(String... strs) {
+    if (numFields == -1) {
+      numFields = strs.length;
+    } else if (strs.length != numFields) {
+      throw new IllegalArgumentException(
+          "CSV lines with different number of fields");
+    }
+
+    boolean isFirst = true;
+    for (String str : strs) {
+      if (!isFirst) {
+        pw.print(',');
+      }
+      isFirst = false;
+
+      if (str != null) {
+        pw.print('"');
+        pw.print(str.replaceAll("\"", "\"\""));
+        pw.print('"');
+      }
+    }
+    pw.println();
+  }
+
+  @Override
+  public void writeCloseSegment() {
+    segmentIdx++;
+  }
+
+  @Override
+  public void writeEndTrack(Location lastPoint) {
+    // Do nothing
+  }
+
+  @Override
+  public void writeFooter() {
+    // Do nothing
+  }
+
+  @Override
+  public void close() {
+    pw.close();
+  }
+}