Moved source into separate src directory due to popular request

[GpsPrune.git] / src / tim / prune / function / weather / OWMForecastHandler.java

diff --git a/src/tim/prune/function/weather/OWMForecastHandler.java b/src/tim/prune/function/weather/OWMForecastHandler.java
new file mode 100644 (file)
index 0000000..93bcc12
--- /dev/null
+++ b/src/tim/prune/function/weather/OWMForecastHandler.java
@@ -0,0 +1,102 @@
+package tim.prune.function.weather;
+
+import java.util.ArrayList;
+
+import org.xml.sax.Attributes;
+import org.xml.sax.SAXException;
+import org.xml.sax.helpers.DefaultHandler;
+
+
+/**
+ * XML handler for dealing with the XML of weather forecasts
+ * returned from openweathermap.org (current weather has different structure)
+ */
+public class OWMForecastHandler extends DefaultHandler
+{
+       private String _value = null;
+       /** The location name */
+       private String _locName = null;
+       /** The forecast update time */
+       private String _updateTime = null;
+       /** The currently open forecast */
+       private SingleForecast _forecast = null;
+       /** List of all the forecasts found so far */
+       private ArrayList<SingleForecast> _forecastList = new ArrayList<SingleForecast>();
+
+
+       /**
+        * React to the start of an XML tag
+        */
+       public void startElement(String inUri, String inLocalName, String inTagName,
+               Attributes inAttributes) throws SAXException
+       {
+               if (inTagName.equals("time")) { // start of a new forecast
+                       _forecast = new SingleForecast();
+                       // date, timefrom, timeto
+                       _forecast.setTime(inAttributes.getValue("day"), inAttributes.getValue("from"), inAttributes.getValue("to"));
+               }
+               else if (inTagName.equals("symbol")) {
+                       // numeric code, owm image name, description
+                       _forecast.setSymbol(inAttributes.getValue("number"), inAttributes.getValue("var"), inAttributes.getValue("name"));
+               }
+               else if (inTagName.equals("windSpeed")) {
+                       _forecast.setWindDesc(inAttributes.getValue("name"));
+               }
+               else if (inTagName.equals("temperature")) {
+                       _forecast.setTemps(inAttributes.getValue("min"), inAttributes.getValue("max"));
+               }
+               else if (inTagName.equals("humidity")) {
+                       _forecast.setHumidity(inAttributes.getValue("value") + inAttributes.getValue("unit"));
+               }
+               _value = null;
+               super.startElement(inUri, inLocalName, inTagName, inAttributes);
+       }
+
+       /**
+        * React to the end of an XML tag
+        */
+       public void endElement(String inUri, String inLocalName, String inTagName)
+       throws SAXException
+       {
+               if (inTagName.equals("name")) {
+                       _locName = _value;
+               }
+               else if (inTagName.equals("lastupdate")) {
+                       _updateTime = _value;
+               }
+               else if (inTagName.equals("time"))
+               {
+                       // End of a time tag, add the current forecast to the list
+                       _forecastList.add(_forecast);
+               }
+               super.endElement(inUri, inLocalName, inTagName);
+       }
+
+       /**
+        * React to characters received inside tags
+        */
+       public void characters(char[] inCh, int inStart, int inLength)
+       throws SAXException
+       {
+               String value = new String(inCh, inStart, inLength);
+               _value = (_value==null?value:_value+value);
+               super.characters(inCh, inStart, inLength);
+       }
+
+       /** @return location name of forecast */
+       public String getLocationName() {
+               return _locName;
+       }
+
+       /** @return update time of forecast */
+       public String getUpdateTime() {
+               return _updateTime;
+       }
+
+       /**
+        * @return the list of forecasts
+        */
+       public ArrayList<SingleForecast> getForecasts() {
+               return _forecastList;
+       }
+}