package tim.prune.load.xml;
import java.io.File;
-import javax.swing.JFrame;
-import javax.swing.JOptionPane;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.InputStream;
+
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;
import org.xml.sax.Attributes;
+import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
+import org.xml.sax.XMLReader;
import org.xml.sax.helpers.DefaultHandler;
+import org.xml.sax.helpers.XMLReaderFactory;
+
import tim.prune.App;
import tim.prune.I18nManager;
-import tim.prune.data.Altitude;
+import tim.prune.data.SourceInfo;
+import tim.prune.load.MediaLinkInfo;
/**
* Class for handling loading of Xml files, and passing the
{
private File _file = null;
private App _app = null;
- private JFrame _parentFrame = null;
private XmlHandler _handler = null;
private String _unknownType = null;
/**
* Constructor
* @param inApp Application object to inform of track load
- * @param inParentFrame parent frame to reference for dialogs
*/
- public XmlFileLoader(App inApp, JFrame inParentFrame)
+ public XmlFileLoader(App inApp)
{
_app = inApp;
- _parentFrame = inParentFrame;
}
+ /**
+ * Reset the handler to ensure data cleared
+ */
+ public void reset()
+ {
+ _handler = null;
+ _unknownType = null;
+ }
/**
- * Open the selected file and show the GUI dialog
- * to select load options
+ * Open the selected file
+ * @param inFile File to open
*/
public void openFile(File inFile)
{
_file = inFile;
- _handler = null;
- _unknownType = null;
+ reset();
// start new thread in case xml parsing is time-consuming
new Thread(this).start();
}
*/
public void run()
{
+ FileInputStream inStream = null;
+ boolean success = false;
try
{
- // Construct a SAXParser and use this as a default handler
- SAXParser saxParser = SAXParserFactory.newInstance().newSAXParser();
- saxParser.parse(_file, this);
+ inStream = new FileInputStream(_file);
+ success = parseXmlStream(inStream);
+ }
+ catch (FileNotFoundException fnfe) {}
+ // Clean up the stream, don't need it any more
+ try {inStream.close();} catch (IOException e2) {}
+
+ if (success)
+ {
// Check whether handler was properly instantiated
if (_handler == null)
{
// Wasn't either kml or gpx
- JOptionPane.showMessageDialog(_parentFrame,
- I18nManager.getText("error.load.unknownxml") + " " + _unknownType,
- I18nManager.getText("error.load.dialogtitle"), JOptionPane.ERROR_MESSAGE);
+ _app.showErrorMessageNoLookup("error.load.dialogtitle",
+ I18nManager.getText("error.load.unknownxml") + " " + _unknownType);
}
else
{
+ SourceInfo.FILE_TYPE sourceType = (_handler instanceof GpxHandler ? SourceInfo.FILE_TYPE.GPX : SourceInfo.FILE_TYPE.KML);
+ SourceInfo sourceInfo = new SourceInfo(_file, sourceType);
+ sourceInfo.setFileTitle(_handler.getFileTitle());
+
// Pass information back to app
_app.informDataLoaded(_handler.getFieldArray(), _handler.getDataArray(),
- Altitude.FORMAT_METRES, _file.getName());
+ null, sourceInfo, _handler.getTrackNameList(),
+ new MediaLinkInfo(_handler.getLinkArray()));
}
}
- catch (Exception e)
+ }
+
+
+ /**
+ * Try both Xerces and the built-in java classes to parse the given xml stream
+ * @param inStream input stream from file / zip / gzip
+ * @return true on success, false if both xerces and built-in parser failed
+ */
+ public boolean parseXmlStream(InputStream inStream)
+ {
+ boolean success = false;
+ // Firstly, try to use xerces to parse the xml (will throw an exception if not available)
+ try
+ {
+ XMLReader xmlReader = XMLReaderFactory.createXMLReader("org.apache.xerces.parsers.SAXParser");
+ xmlReader.setContentHandler(this);
+ xmlReader.parse(new InputSource(inStream));
+ success = true; // worked
+ }
+ catch (Exception e) {} // don't care too much if it didn't work, there's a backup
+
+ // If that didn't work, try the built-in classes (which work for xml1.0 but handling for 1.1 contains bugs)
+ if (!success)
{
- // Show error dialog
- JOptionPane.showMessageDialog(_parentFrame,
- I18nManager.getText("error.load.othererror") + " " + e.getMessage(),
- I18nManager.getText("error.load.dialogtitle"), JOptionPane.ERROR_MESSAGE);
+ try
+ {
+ // Construct a SAXParser and use this as a default handler
+ SAXParser saxParser = SAXParserFactory.newInstance().newSAXParser();
+ saxParser.parse(inStream, this);
+ success = true;
+ }
+ catch (Exception e)
+ {
+ // Show error dialog
+ _app.showErrorMessageNoLookup("error.load.dialogtitle",
+ I18nManager.getText("error.load.othererror") + " " + e.getMessage());
+ }
}
+ return success;
}
-
/**
* Receive a tag
* @see org.xml.sax.ContentHandler#startElement(java.lang.String, java.lang.String, java.lang.String, org.xml.sax.Attributes)
*/
public void startElement(String uri, String localName, String qName,
- Attributes attributes) throws SAXException
+ Attributes attributes) throws SAXException
{
// Check for "kml" or "gpx" tags
if (_handler == null)
{
if (qName.equals("kml")) {_handler = new KmlHandler();}
else if (qName.equals("gpx")) {_handler = new GpxHandler();}
- else if (_unknownType == null && qName != null && !qName.equals(""))
+ else if (_unknownType == null && !qName.equals(""))
{
_unknownType = qName;
}
* @see org.xml.sax.ContentHandler#characters(char[], int, int)
*/
public void characters(char[] ch, int start, int length)
- throws SAXException
+ throws SAXException
{
if (_handler != null)
{
* @see org.xml.sax.ContentHandler#endElement(java.lang.String, java.lang.String, java.lang.String)
*/
public void endElement(String uri, String localName, String qName)
- throws SAXException
+ throws SAXException
{
if (_handler != null)
{
}
super.endElement(uri, localName, qName);
}
+
+ /**
+ * @return The Xml handler used for the parsing
+ */
+ public XmlHandler getHandler()
+ {
+ return _handler;
+ }
}
projects / GpsPrune.git / blobdiff