@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws IOException, ServletException {
String uri = getDecodedUri(request);
try {
String destination_frame = request.getParameter("destination_frame");
if (destination_frame == null) {
destination_frame = "upload" + Key.rand();
}
if (!validKeyName(destination_frame)) {
setResponseStatus(response, HttpServletResponse.SC_BAD_REQUEST);
response.getWriter().write("Invalid key name, contains illegal characters");
return;
}
//
// Here is an example of how to upload a file from the command line.
//
// curl -v -F "file=@allyears2k_headers.zip"
// "http://localhost:54321/3/PostFile.bin?destination_frame=a.zip"
//
// JSON Payload returned is:
// { "destination_frame": "key_name", "total_bytes": nnn }
//
InputStream is = extractPartInputStream(request, response);
if (is == null) {
return;
}
UploadFileVec.ReadPutStats stats = new UploadFileVec.ReadPutStats();
UploadFileVec.readPut(destination_frame, is, stats);
String responsePayload =
"{ "
+ "\"destination_frame\": \""
+ destination_frame
+ "\", "
+ "\"total_bytes\": "
+ stats.total_bytes
+ " "
+ "}\n";
response.setContentType("application/json");
response.getWriter().write(responsePayload);
} catch (Exception e) {
sendErrorResponse(response, e, uri);
} finally {
logRequest("POST", request, response);
}
}
/**
* From a path produce a list of files and keys for parsing.
*
* <p>Use as follows:
*
* <p>ArrayList<String> files = new ArrayList(); ArrayList<String> keys = new ArrayList();
* ArrayList<String> fails = new ArrayList(); ArrayList<String> dels = new ArrayList();
* importFiles(importFiles.path, files, keys, fails, dels);
*
* @param path (Input) Path to import data from
* @param files (Output) List of files found
* @param keys (Output) List of keys corresponding to files
* @param fails (Output) List of failed files which mismatch among nodes
* @param dels (Output) I don't know what this is
*/
public void importFiles(
String path,
ArrayList<String> files,
ArrayList<String> keys,
ArrayList<String> fails,
ArrayList<String> dels) {
String s = path.toLowerCase(); // path must not be null
if (s.startsWith("http:") || s.startsWith("https:")) {
try {
java.net.URL url = new URL(path);
Key destination_key = Key.make(path);
java.io.InputStream is = url.openStream();
UploadFileVec.ReadPutStats stats = new UploadFileVec.ReadPutStats();
UploadFileVec.readPut(destination_key, is, stats);
files.add(path);
keys.add(destination_key.toString());
} catch (Throwable e) {
fails.add(
path); // Fails for e.g. broken sockets silently swallow exceptions and just record the
// failed path
}
return;
}
if (s.startsWith("s3:")) {
if (I[Value.S3] == null)
throw new H2OIllegalArgumentException("S3 support is not configured");
I[Value.S3].importFiles(path, files, keys, fails, dels);
return;
}
if (s.startsWith("hdfs:")
|| s.startsWith("s3n:")
|| s.startsWith("s3a:")
|| s.startsWith("maprfs:")) {
if (I[Value.HDFS] == null)
throw new H2OIllegalArgumentException("HDFS, S3N, and S3A support is not configured");
I[Value.HDFS].importFiles(path, files, keys, fails, dels);
return;
}
// Attempt NFS import instead
I[Value.NFS].importFiles(path, files, keys, fails, dels);
}