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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");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of 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,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.android.locationtracker.data;
     18 
     19 import com.android.locationtracker.data.TrackerEntry.EntryType;
     20 
     21 /**
     22  * Formats tracker data as CSV output
     23  */
     24 class CSVFormatter implements IFormatter {
     25 
     26     private static final String DELIMITER = ", ";
     27 
     28     public String getHeader() {
     29         StringBuilder csvBuilder = new StringBuilder();
     30         for (String col : TrackerEntry.ATTRIBUTES) {
     31             // skip type and id column
     32             if (!TrackerEntry.ENTRY_TYPE.equals(col) &&
     33                 !TrackerEntry.ID_COL.equals(col)) {
     34                 csvBuilder.append(col);
     35                 csvBuilder.append(DELIMITER);
     36             }
     37         }
     38         csvBuilder.append("\n");
     39         return csvBuilder.toString();
     40     }
     41 
     42     public String getOutput(TrackerEntry entry) {
     43         StringBuilder rowOutput = new StringBuilder();
     44         // these must match order of columns added in getHeader
     45         rowOutput.append(entry.getTimestamp());
     46         rowOutput.append(DELIMITER);
     47         rowOutput.append(entry.getTag());
     48         rowOutput.append(DELIMITER);
     49         //rowOutput.append(entry.getType());
     50         //rowOutput.append(DELIMITER);
     51         if (entry.getType() == EntryType.LOCATION_TYPE) {
     52             if (entry.getLocation().hasAccuracy()) {
     53                 rowOutput.append(entry.getLocation().getAccuracy());
     54             }
     55             rowOutput.append(DELIMITER);
     56             rowOutput.append(entry.getLocation().getLatitude());
     57             rowOutput.append(DELIMITER);
     58             rowOutput.append(entry.getLocation().getLongitude());
     59             rowOutput.append(DELIMITER);
     60             if (entry.getLocation().hasAltitude()) {
     61                 rowOutput.append(entry.getLocation().getAltitude());
     62             }
     63             rowOutput.append(DELIMITER);
     64             if (entry.getLocation().hasSpeed()) {
     65                 rowOutput.append(entry.getLocation().getSpeed());
     66             }
     67             rowOutput.append(DELIMITER);
     68             if (entry.getLocation().hasBearing()) {
     69                 rowOutput.append(entry.getLocation().getBearing());
     70             }
     71             rowOutput.append(DELIMITER);
     72             rowOutput.append(entry.getDistFromNetLocation());
     73             rowOutput.append(DELIMITER);
     74             rowOutput.append(DateUtils.getKMLTimestamp(entry.getLocation()
     75                     .getTime()));
     76             rowOutput.append(DELIMITER);
     77         }
     78         rowOutput.append(entry.getLogMsg());
     79         rowOutput.append("\n");
     80         return rowOutput.toString();
     81     }
     82 
     83     public String getFooter() {
     84         // not needed, return empty string
     85         return "";
     86     }
     87 }
     88