Version 12, December 2010

[GpsPrune.git] / tim / prune / function / SearchWikipediaNames.java

diff --git a/tim/prune/function/SearchWikipediaNames.java b/tim/prune/function/SearchWikipediaNames.java
new file mode 100644 (file)
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--- /dev/null
+++ b/tim/prune/function/SearchWikipediaNames.java
@@ -0,0 +1,144 @@
+package tim.prune.function;
+
+import java.io.InputStream;
+import java.net.URL;
+import java.util.ArrayList;
+
+import javax.swing.JOptionPane;
+import javax.xml.parsers.SAXParser;
+import javax.xml.parsers.SAXParserFactory;
+
+import tim.prune.App;
+import tim.prune.I18nManager;
+import tim.prune.data.DataPoint;
+import tim.prune.data.Field;
+import tim.prune.data.Latitude;
+import tim.prune.data.Longitude;
+import tim.prune.function.gpsies.GenericDownloaderFunction;
+import tim.prune.function.gpsies.GpsiesTrack;
+
+/**
+ * Function to search Wikipedia for place names
+ */
+public class SearchWikipediaNames extends GenericDownloaderFunction
+{
+       /** search term */
+       private String _searchTerm = null;
+       /** Maximum number of results to get */
+       private static final int MAX_RESULTS = 20;
+
+       /**
+        * Constructor
+        * @param inApp App object
+        */
+       public SearchWikipediaNames(App inApp) {
+               super(inApp);
+       }
+
+       /**
+        * @return name key
+        */
+       public String getNameKey() {
+               return "function.searchwikipedianames";
+       }
+
+       /**
+        * @param inColNum index of column, 0 or 1
+        * @return key for this column
+        */
+       protected String getColumnKey(int inColNum)
+       {
+               if (inColNum == 0) return "dialog.wikipedia.column.name";
+               return null;
+       }
+
+       /**
+        * Before dialog is shown, need to get search term
+        */
+       public void begin()
+       {
+               Object search = JOptionPane.showInputDialog(_app.getFrame(),
+                       I18nManager.getText("dialog.searchwikipedianames.search"),
+                       I18nManager.getText(getNameKey()),
+                       JOptionPane.QUESTION_MESSAGE, null, null, "");
+               if (search != null)
+               {
+                       _searchTerm = search.toString();
+                       if (!_searchTerm.equals("")) {
+                               super.begin();
+                       }
+               }
+       }
+
+       /**
+        * Run method to call geonames in separate thread
+        */
+       public void run()
+       {
+               _statusLabel.setText(I18nManager.getText("confirm.running"));
+
+               String descMessage = "";
+               InputStream inStream = null;
+
+               // language (only de and en available)
+               String lang = I18nManager.getText("wikipedia.lang");
+               if (lang.equals("de") || lang.equals("als")) {
+                       lang = "de";
+               }
+               else {
+                       lang = "en";
+               }
+               // Example http://ws.geonames.org/wikipediaSearch?q=london&maxRows=10
+               String urlString = "http://ws.geonames.org/wikipediaSearch?title=" + _searchTerm + "&maxRows=" + MAX_RESULTS
+                       + "&lang=" + lang;
+               // Parse the returned XML with a special handler
+               GetWikipediaXmlHandler xmlHandler = new GetWikipediaXmlHandler();
+               try
+               {
+                       URL url = new URL(urlString);
+                       SAXParser saxParser = SAXParserFactory.newInstance().newSAXParser();
+                       inStream = url.openStream();
+                       saxParser.parse(inStream, xmlHandler);
+               }
+               catch (Exception e) {
+                       descMessage = e.getClass().getName() + " - " + e.getMessage();
+               }
+               // Close stream and ignore errors
+               try {
+                       inStream.close();
+               } catch (Exception e) {}
+               // Add track list to model
+               ArrayList<GpsiesTrack> trackList = xmlHandler.getTrackList();
+               // TODO: Do a better job of sorting replies by relevance - use three different lists
+               _trackListModel.addTracks(trackList);
+
+               // Set status label according to error or "none found", leave blank if ok
+               if (descMessage.equals("") && (trackList == null || trackList.size() == 0)) {
+                       descMessage = I18nManager.getText("dialog.gpsies.nonefound");
+               }
+               _statusLabel.setText(descMessage);
+       }
+
+       /**
+        * Load the selected track or point
+        */
+       protected void loadSelected()
+       {
+               // Find the row selected in the table and get the corresponding track
+               int rowNum = _trackTable.getSelectedRow();
+               if (rowNum >= 0 && rowNum < _trackListModel.getRowCount())
+               {
+                       String coords = _trackListModel.getTrack(rowNum).getDownloadLink();
+                       String[] latlon = coords.split(",");
+                       if (latlon.length == 2)
+                       {
+                               DataPoint point = new DataPoint(new Latitude(latlon[0]), new Longitude(latlon[1]), null);
+                               point.setFieldValue(Field.WAYPT_NAME, _trackListModel.getTrack(rowNum).getTrackName(), false);
+                               _app.createPoint(point);
+                       }
+               }
+               // Close the dialog
+               _cancelled = true;
+               _dialog.dispose();
+       }
+}