/**
* Upload a local file to a URL
*
* @return true if successful
*/
public boolean upload(String fileName, String url) {
Data remote = Data.factory(url);
Data local = Data.factory(fileName);
// Sanity checks
if (!remote.isRemote()) {
System.err.println("Cannot upload to non-remote URL: " + url);
return false;
}
if (!local.isFile()) {
System.err.println("Cannot upload non-file: " + fileName);
return false;
}
if (!local.exists()) {
System.err.println("Local file does not exists: " + fileName);
return false;
}
if (!local.canRead()) {
System.err.println("Cannot read local file : " + fileName);
return false;
}
// Already uploaded? Nothing to do
if (remote.isUploaded(fileName)) {
if (verbose) System.err.println("Remote file is up to date, no upload required: " + url);
return true;
}
return remote.upload(fileName);
}
/**
* Download a URL to a local file
*
* @return true if successful
*/
public boolean download(String url, String fileName) {
Data remote = Data.factory(url);
// Sanity checks
if (!remote.isRemote()) {
System.err.println("Cannot download non-remote URL: " + url);
return false;
}
if (!remote.isFile()) {
System.err.println("Cannot download non-file: " + url);
return false;
}
// Already downloaded? Nothing to do
if (remote.isDownloaded(fileName)) {
if (verbose)
System.err.println("Local file is up to date, no download required: " + fileName);
return true;
}
return remote.download(fileName);
}
/**
* Get canonical path to file using thread's 'current dir' to de-reference relative paths
*
* <p>Warning: When un-serializing a task form a checkpoint, threads are not initialized, thus
* they are null
*/
public static Data data(String url) {
BdsThread bdsThread = BdsThreads.getInstance().get();
if (bdsThread == null) return Data.factory(url);
return bdsThread.data(url);
}