I've coded a Class called DropboxHandler. This class manages all the stuff that interacts directly with my Dropbox account. This class has some methods like uploading and downloading a file, listing all files in a folder, and so on. Everything works fine, except with *.app Files. I know, that these are folders, but i cannot find out, how to download and save them on my HD. Here is my method to download an Folder/ File
public static void downloadFolder(String fileToDownload, String tempFileName) throws IOException {
FileOutputStream outputStream = new FileOutputStream(tempFileName);
try {
DbxEntry.WithChildren listing = client.getMetadataWithChildren(fileToDownload);
for (DbxEntry child : listing.children) {
if (child instanceof DbxEntry.Folder) {
(new File(tempFileName)).mkdirs();
downloadFolder(fileToDownload + "/" + child.name, tempFileName + "/" + child.name);
} else if (child instanceof DbxEntry.File) {
DbxEntry.File downloadedFile = client.getFile(fileToDownload, null, outputStream);
System.out.println("Metadata: " + downloadedFile.toString());
System.out.println("Downloaded: " + downloadedFile.toString());
}
}
} catch (DbxException e) {
System.out.println(e.getMessage());
} catch (IOException e) {
System.out.println(e.getMessage());
} finally {
outputStream.close();
System.out.println("Download finished");
}
}
When i run my code, it creates a Folder called Launcher.app (Launcher is the File to download). But when it should download the content of the Launcher, the FileOutputStream fires an error that says that Launcher.app/Content isn't a Folder.
So maybe anyone has some Ideas, how to download the *.app "Files"
Greetings
There are a number of issues with the code you posted. The one you're hitting now is that the very first line of the method creates a file with the same name as the folder you want to write to.
I think that the next issue you'll hit is where you call getFile. It looks like you're trying to save every file into the same output stream. So essentially you're creating a file (instead of a folder) called Launcher.app and then writing the contents of every file into that file (maybe concatenated together as one big file).
I took a stab at fixing the code, but I haven't tested it at all. (I don't even know if it compiles.) See if this helps:
// recursively download a folder from Dropbox to the local file system
public static void downloadFolder(String path, String destination) throws IOException {
new File(destination).mkdirs();
try {
for (DbxEntry child : client.getMetadataWithChildren(path).children) {
if (child instanceof DbxEntry.Folder) {
// recurse
downloadFolder(path + "/" + child.name, destination + "/" + child.name);
} else if (child instanceof DbxEntry.File) {
// download an individual file
OutputStream outputStream = new FileOutputStream(
destination + "/" + child.name);
try {
DbxEntry.File downloadedFile = client.getFile(
path + "/" + child.name, null, outputStream);
} finally {
outputStream.close();
}
}
}
} catch (DbxException e) {
System.out.println(e.getMessage());
} catch (IOException e) {
System.out.println(e.getMessage());
}
}