Moved source into separate src directory due to popular request

[GpsPrune.git] / src / tim / prune / load / xml / ZipFileLoader.java

diff --git a/src/tim/prune/load/xml/ZipFileLoader.java b/src/tim/prune/load/xml/ZipFileLoader.java
new file mode 100644 (file)
index 0000000..eb2f9a6
--- /dev/null
+++ b/src/tim/prune/load/xml/ZipFileLoader.java
@@ -0,0 +1,135 @@
+package tim.prune.load.xml;
+
+import java.io.File;
+import java.io.InputStream;
+import java.util.Enumeration;
+import java.util.zip.ZipEntry;
+import java.util.zip.ZipFile;
+import java.util.zip.ZipInputStream;
+
+import javax.xml.parsers.SAXParser;
+import javax.xml.parsers.SAXParserFactory;
+
+import tim.prune.App;
+import tim.prune.data.SourceInfo;
+import tim.prune.load.MediaLinkInfo;
+
+/**
+ * Class to handle the loading of zipped xml files
+ */
+public class ZipFileLoader
+{
+       /** App for callback of file loading */
+       private App _app = null;
+       /** Object to do the handling of the xml */
+       private XmlFileLoader _xmlLoader = null;
+
+       /**
+        * Constructor
+        * @param inApp App object
+        * @param inXmlLoader object to do the xml handling
+        */
+       public ZipFileLoader(App inApp, XmlFileLoader inXmlLoader)
+       {
+               _app = inApp;
+               _xmlLoader = inXmlLoader;
+       }
+
+       /**
+        * Open the selected file and select appropriate xml loader
+        * @param inFile File to open
+        */
+       public void openFile(File inFile)
+       {
+               try
+               {
+                       ZipFile file = new ZipFile(inFile);
+                       Enumeration<?> entries = file.entries();
+                       boolean xmlFound = false;
+                       while (entries.hasMoreElements() && !xmlFound)
+                       {
+                               ZipEntry entry = (ZipEntry) entries.nextElement();
+                               String entryName = entry.toString();
+                               if (entryName != null && entryName.length() > 4)
+                               {
+                                       String suffix = entryName.substring(entryName.length()-4).toLowerCase();
+                                       if (suffix.equals(".kml") || suffix.equals(".gpx") || suffix.equals(".xml"))
+                                       {
+                                               _xmlLoader.reset();
+                                               // Parse the stream using either Xerces or java classes
+                                               _xmlLoader.parseXmlStream(file.getInputStream(entry));
+                                               XmlHandler handler = _xmlLoader.getHandler();
+                                               if (handler == null) {
+                                                       _app.showErrorMessage("error.load.dialogtitle", "error.load.othererror");
+                                               }
+                                               else
+                                               {
+                                                       // Send back to app
+                                                       SourceInfo sourceInfo = new SourceInfo(inFile,
+                                                               (handler instanceof GpxHandler?SourceInfo.FILE_TYPE.GPX:SourceInfo.FILE_TYPE.KML));
+                                                       _app.informDataLoaded(handler.getFieldArray(), handler.getDataArray(),
+                                                               null, sourceInfo, handler.getTrackNameList(),
+                                                               new MediaLinkInfo(inFile, handler.getLinkArray()));
+                                                       xmlFound = true;
+                                               }
+                                       }
+                               }
+                       }
+                       file.close();
+                       // Check whether there was an xml file inside
+                       if (!xmlFound) {
+                               _app.showErrorMessage("error.load.dialogtitle", "error.load.noxmlinzip");
+                       }
+               }
+               catch (Exception e) {
+                       _app.showErrorMessageNoLookup("error.load.dialogtitle", e.getClass().getName() + "\n - " + e.getMessage());
+               }
+       }
+
+       /**
+        * Use the given stream to access a remote zip file
+        * @param inStream stream to use to access file
+        */
+       public void openStream(InputStream inStream)
+       {
+               try
+               {
+                       ZipInputStream zis = new ZipInputStream(inStream);
+                       boolean xmlFound = false;
+                       while (!xmlFound && zis.available() > 0)
+                       {
+                               ZipEntry entry = zis.getNextEntry();
+                               String entryName = entry.toString();
+                               if (entryName != null && entryName.length() > 4)
+                               {
+                                       String suffix = entryName.substring(entryName.length()-4).toLowerCase();
+                                       if (suffix.equals(".kml") || suffix.equals(".gpx") || suffix.equals(".xml"))
+                                       {
+                                               _xmlLoader.reset();
+                                               SAXParser saxParser = SAXParserFactory.newInstance().newSAXParser();
+                                               saxParser.parse(zis, _xmlLoader);
+                                               XmlHandler handler = _xmlLoader.getHandler();
+                                               if (handler == null) {
+                                                       _app.showErrorMessage("error.load.dialogtitle", "error.load.othererror");
+                                               }
+                                               else
+                                               {
+                                                       // Send back to app
+                                                       _app.informDataLoaded(handler.getFieldArray(), handler.getDataArray(),
+                                                               new SourceInfo("gpsies", SourceInfo.FILE_TYPE.GPSIES),
+                                                               handler.getTrackNameList());
+                                                       xmlFound = true;
+                                               }
+                                       }
+                               }
+                       }
+                       // Check whether there was an xml file inside
+                       if (!xmlFound) {
+                               _app.showErrorMessage("error.load.dialogtitle", "error.load.noxmlinzip");
+                       }
+               }
+               catch (Exception e) {
+                       System.err.println("ZipStream Error: " + e.getClass().getName() + " -message= " + e.getMessage());
+               }
+       }
+}