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      1 /*
      2  * Copyright (C) 2008 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License"); you may not
      5  * use this file except in compliance with the License. You may obtain a copy of
      6  * the License at
      7  *
      8  * http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
     12  * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
     13  * License for the specific language governing permissions and limitations under
     14  * the License.
     15  */
     16 
     17 package com.android.locationtracker.data;
     18 
     19 import com.android.locationtracker.data.TrackerEntry.EntryType;
     20 
     21 import android.location.Location;
     22 
     23 /**
     24  * Formats tracker data as KML output
     25  */
     26 class KMLFormatter implements IFormatter {
     27 
     28     public String getHeader() {
     29         LineBuilder builder = new LineBuilder();
     30         builder.addLine("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
     31         builder.addLine("<kml xmlns=\"http://earth.google.com/kml/2.2\">");
     32         builder.addLine("<Document>");
     33         return builder.toString();
     34     }
     35 
     36     public String getFooter() {
     37         LineBuilder builder = new LineBuilder();
     38         builder.addLine("</Document>");
     39         builder.addLine("</kml>");
     40         return builder.toString();
     41     }
     42 
     43     public String getOutput(TrackerEntry entry) {
     44         LineBuilder builder = new LineBuilder();
     45 
     46         if (entry.getType() == EntryType.LOCATION_TYPE) {
     47 
     48             Location loc = entry.getLocation();
     49             builder.addLine("<Placemark>");
     50             builder.addLine("<description>");
     51             builder.addLine("accuracy = " + loc.getAccuracy());
     52             builder.addLine("distance from last network location  = "
     53                     + entry.getDistFromNetLocation());
     54             builder.addLine("</description>");
     55             builder.addLine("<TimeStamp>");
     56             builder.addLine("<when>" + entry.getTimestamp() + "</when>");
     57             builder.addLine("</TimeStamp>");
     58             builder.addLine("<Point>");
     59             builder.addLine("<coordinates>");
     60             builder.addLine(loc.getLongitude() + "," + loc.getLatitude() + ","
     61                     + loc.getAltitude());
     62             builder.addLine("</coordinates>");
     63             builder.addLine("</Point>");
     64             builder.addLine("</Placemark>");
     65         }
     66         return builder.toString();
     67     }
     68 
     69     private static class LineBuilder {
     70         private StringBuilder mBuilder;
     71 
     72         public LineBuilder() {
     73             mBuilder = new StringBuilder();
     74         }
     75 
     76         public void addLine(String line) {
     77             mBuilder.append(line);
     78             mBuilder.append("\n");
     79         }
     80 
     81         @Override
     82         public String toString() {
     83             return mBuilder.toString();
     84         }
     85 
     86     }
     87 
     88 }
     89