tim/prune/function/weather/OWMCurrentHandler.java

   1 package tim.prune.function.weather;
   2
   3 import org.xml.sax.Attributes;
   4 import org.xml.sax.SAXException;
   5 import org.xml.sax.helpers.DefaultHandler;
   6
   7
   8 /**
   9  * XML handler for dealing with the XML of current weather reports
  10  * returned from openweathermap.org (forecasts have different structure)
  11  */
  12 public class OWMCurrentHandler extends DefaultHandler
  13 {
  14         /** The location name */
  15         private String _locName = null;
  16         /** The location id */
  17         private String _locId = null;
  18         /** The last update time */
  19         private String _updateTime = null;
  20         /** Sunrise and sunset times */
  21         private String _sunriseTime = null, _sunsetTime = null;
  22         /** The currently open forecast */
  23         private SingleForecast _forecast = new SingleForecast();
  24
  25
  26         /**
  27          * React to the start of an XML tag
  28          */
  29         public void startElement(String inUri, String inLocalName, String inTagName,
  30                 Attributes inAttributes) throws SAXException
  31         {
  32                 if (inTagName.equals("city")) {
  33                         _locName = inAttributes.getValue("name");
  34                         _locId   = inAttributes.getValue("id");
  35                 }
  36                 else if (inTagName.equals("weather")) {
  37                         // numeric code, owm image name, description
  38                         _forecast.setSymbol(inAttributes.getValue("number"), inAttributes.getValue("icon"), inAttributes.getValue("value"));
  39                 }
  40                 else if (inTagName.equals("speed")) {
  41                         _forecast.setWindDesc(inAttributes.getValue("name"));
  42                 }
  43                 else if (inTagName.equals("temperature"))
  44                 {
  45                         String currTemp = inAttributes.getValue("value");
  46                         _forecast.setTemps(currTemp, currTemp);
  47                         // We can ignore the min and max here
  48                 }
  49                 else if (inTagName.equals("humidity")) {
  50                         _forecast.setHumidity(inAttributes.getValue("value") + inAttributes.getValue("unit"));
  51                 }
  52                 else if (inTagName.equals("lastupdate")) {
  53                         _updateTime = inAttributes.getValue("value");
  54                 }
  55                 else if (inTagName.equals("sun"))
  56                 {
  57                         _sunriseTime = inAttributes.getValue("rise");
  58                         _sunsetTime  = inAttributes.getValue("set");
  59                 }
  60
  61                 super.startElement(inUri, inLocalName, inTagName, inAttributes);
  62         }
  63
  64         /** @return location name of forecast */
  65         public String getLocationName() {
  66                 return _locName;
  67         }
  68
  69         /** @return location id of forecast */
  70         public String getLocationId() {
  71                 return _locId;
  72         }
  73
  74         /** @return update time of report */
  75         public String getUpdateTime() {
  76                 return _updateTime;
  77         }
  78
  79         /** @return current weather conditions */
  80         public SingleForecast getCurrentWeather() {
  81                 return _forecast;
  82         }
  83
  84         /** @return sunrise time as 2013-07-25T03:55:14 */
  85         public String getSunriseTime() {
  86                 return _sunriseTime;
  87         }
  88         /** @return sunset time as 2013-07-25T19:07:25 */
  89         public String getSunsetTime() {
  90                 return _sunsetTime;
  91         }
  92 }