/**
* Creates a source using a local file.
*
* <p>POST /andromeda/source?username=$BIGML_USERNAME;api_key=$BIGML_API_KEY; HTTP/1.1 Host:
* bigml.io Content-Type: multipart/form-data;
*
* @param fileName file containing your data in csv format. It can be compressed, gzipped, or
* zipped. Required multipart/form-data; charset=utf-8
* @param name the name you want to give to the new source. Optional
* @param sourceParser set of parameters to parse the source. Optional
* @param args set of parameters for the new model. Optional
*/
public JSONObject createLocalSource(
final String fileName,
final String name,
final JSONObject sourceParser,
final JSONObject args) {
int code = HTTP_INTERNAL_SERVER_ERROR;
String resourceId = null;
JSONObject resource = null;
String location = "";
JSONObject error = new JSONObject();
JSONObject status = new JSONObject();
status.put("code", code);
status.put("message", "The resource couldn't be created");
error.put("status", status);
try {
MultipartUtility multipartUtility = new MultipartUtility(SOURCE_URL + bigmlAuth, "UTF-8");
multipartUtility.addFilePart("bin", new File(fileName));
if (name != null) {
multipartUtility.addFormField("name", name);
}
// Source parser
if (sourceParser != null) {
multipartUtility.addFormField(
"source_parser", Utils.unescapeJSONString(sourceParser.toJSONString()));
}
if (args != null) {
for (String key : (Set<String>) args.keySet()) {
multipartUtility.addFormField(
key, Utils.unescapeJSONString(String.valueOf(args.get(key))));
}
}
HttpURLConnection connection = multipartUtility.finish();
code = connection.getResponseCode();
if (code == HTTP_CREATED) {
location = connection.getHeaderField(location);
resource =
(JSONObject)
JSONValue.parse(Utils.inputStreamAsString(connection.getInputStream(), "UTF-8"));
resourceId = (String) resource.get("resource");
error = new JSONObject();
} else {
if (code == HTTP_BAD_REQUEST
|| code == HTTP_UNAUTHORIZED
|| code == HTTP_PAYMENT_REQUIRED
|| code == HTTP_NOT_FOUND) {
error =
(JSONObject)
JSONValue.parse(Utils.inputStreamAsString(connection.getInputStream(), "UTF-8"));
} else {
logger.info("Unexpected error (" + code + ")");
code = HTTP_INTERNAL_SERVER_ERROR;
}
}
} catch (Throwable e) {
logger.error("Error creating source", e);
}
// Cache the resource if the resource if ready
if (cacheManager != null && resource != null && isResourceReady(resource)) {
cacheManager.put(resourceId, null, resource);
}
JSONObject result = new JSONObject();
result.put("code", code);
result.put("resource", resourceId);
result.put("location", location);
result.put("object", resource);
result.put("error", error);
return result;
}
