/// <summary>
/// Logs data to server.
/// </summary>
/// <returns>A response object that contains response string and response type that are set by server.</returns>
/// <param name="data">JSON string data.</param>
/// <param name="isMessage">Flag data as message.</param>
/// <value>Logs data to server. Internally, LogData calls functions to log json data or string message. Depending on type of data the input data are sent to different URIs.</value>
public ResponseObject LogData( string data, bool isMessage = false )
{
ResponseObject R = new ResponseObject();
string uri = "";
if ( isMessage == false ) {
uri = "http://skylr.renci.org/api/data/document/add";
R = ( LogEvent (uri, data) );
}
else if ( isMessage == true ) {
uri = "http://skylr.renci.org/api/data/messageQ/add";
R = ( LogMessage (uri, data) );
}
return R;
}
/// <summary>
/// Logs the input binary data.
/// </summary>
/// <param name="url">URL.</param>
/// <param name="filePath">Location of file on computer.</param>
/// <param name="paramName">Parameter name.</param>
/// <param name="contentType">Content type.</param>
/// <param name="data">Data.</param>
// <returns>A response object that contains response string and response type that are set by server.</returns>
protected ResponseObject LogFileData( string url, string filePath, string paramName, string contentType, string data )
{
string boundary = "---------------------------" + DateTime.Now.Ticks.ToString("x");
// Set up an instance of Http Web Request
HttpWebRequest request = (HttpWebRequest)WebRequest.Create (url);
//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=//
// Set attributes of the HTTP web request object
// Request Method
request.Method = WebRequestMethods.Http.Post;
// Request Content Type
request.ContentType = "multipart/form-data; boundary=" + boundary;
// Request keep alive flag
request.KeepAlive = true;
// Request credentials
request.Credentials = System.Net.CredentialCache.DefaultCredentials;
//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=//
// Declare request stream and write to it
Stream dataStream = request.GetRequestStream();
// Check if data stream is null
if (dataStream == null) {
ResponseObject RFail = new ResponseObject ();
switch (ResponseDensity) {
case 1: RFail.Response = " "; break;
case 2: case 3: case 4: case 5: RFail.Response = "[DataLogger] Error (stream could not be initialized).\n"; break;
}
RFail.Type = (int)ResponseObject.ResponseType.ERROR;
return RFail;
}
// Write out boundary bytes
byte[] boundarybytes = System.Text.Encoding.ASCII.GetBytes ("\r\n--" + boundary + "\r\n");
dataStream.Write(boundarybytes, 0, boundarybytes.Length);
// Write out header bytes
string headerTemplate = "Content-Disposition: form-data; name=\"{0}\"; filename=\"{1}\"\r\nContent-Type: {2}\r\n\r\n";
string header = string.Format (headerTemplate, paramName, filePath, contentType);
byte[] headerbytes = System.Text.Encoding.UTF8.GetBytes (header);
dataStream.Write(headerbytes, 0, headerbytes.Length);
// Write out file data
FileStream fileStream = new FileStream (filePath, FileMode.Open, FileAccess.Read);
byte[] byteArray = new byte[4096];
int bytesRead = 0;
while ((bytesRead = fileStream.Read (byteArray, 0, byteArray.Length)) != 0) {
dataStream.Write (byteArray, 0, bytesRead);
}
fileStream.Close();
// Write out tail bytes
byte[] trailer = System.Text.Encoding.ASCII.GetBytes ("\r\n--" + boundary + "--\r\n");
dataStream.Write (trailer, 0, trailer.Length);
dataStream.Close ();
//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=//
// Get response from server
ResponseObject R = new ResponseObject ();
try
{
using (WebResponse response = request.GetResponse ())
{
HttpWebResponse _resp = (HttpWebResponse)response;
if (_resp.StatusCode == HttpStatusCode.OK) {
switch (ResponseDensity) {
case 1: R.Response = " "; break;
case 2: R.Response = " " + _resp.StatusCode + "\n"; break;
case 3: case 4: case 5: R.Response = "[DataLogger] Server response: " + byteArray.Length + " bytes sent.\n"; break;
}
R.Type = (int)ResponseObject.ResponseType.NOTICE;
_resp.Close ();
}
}
}
catch (WebException e)
{
using (WebResponse response = e.Response)
{
HttpWebResponse _resp = (HttpWebResponse)response;
using (Stream _data = _resp.GetResponseStream ())
{
string _text = new StreamReader(_data).ReadToEnd();
_resp.Close();
switch (ResponseDensity) {
case 1: R.Response = " "; break;
case 2: R.Response = " " + _resp.StatusCode + "\n"; break;
case 3: case 4: case 5: R.Response = "[DataLogger] Return code: " + _resp.StatusCode + " while sending data. Data size: " + data.Length + " Server Response: " + _text + "\n"; break;
}
R.Type = (int)ResponseObject.ResponseType.ERROR;
}
}
}
finally {
request = null;
}
//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=//
return R;
}
/// <summary>
/// Logs the input message data.
/// </summary>
/// <param name="uri">URI.</param>
/// <param name="data">Data.</param>
/// <returns>A response object that contains response string and response type that are set by server.</returns>
protected ResponseObject LogMessage( string uri, string data )
{
// Set up an instance of Http Web Request
HttpWebRequest request = (HttpWebRequest)WebRequest.Create (uri);
// Set up array to hold data
byte[] byteArray = Encoding.UTF8.GetBytes ((string)data);
//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=//
// Set attributes of the HTTP web request object
// Request Method
request.Method = WebRequestMethods.Http.Post;
// Content Type
request.ContentType = "text/html";
// Content length proprty
request.ContentLength = byteArray.Length;
//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=//
//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=//
// Declare request stream and write to it
Stream dataStream = request.GetRequestStream ();
// Check if data stream is null
if (dataStream == null) {
ResponseObject RFail = new ResponseObject();
switch(ResponseDensity) {
case 1: RFail.Response = " "; break;
case 2: case 3: case 4: case 5: RFail.Response = "[DataLogger] Error (stream could not be initialized).\n"; break;
}
RFail.Type = (int)ResponseObject.ResponseType.ERROR;
return RFail;
}
// Write data to the request stream and close it
dataStream.Write (byteArray, 0, byteArray.Length);
dataStream.Close ();
//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=//
//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=//
// Get response from server
ResponseObject R = new ResponseObject ();
try
{
using (WebResponse response = request.GetResponse ())
{
HttpWebResponse _resp = (HttpWebResponse)response;
if(_resp.StatusCode == HttpStatusCode.OK) {
switch (ResponseDensity) {
case 1: R.Response = " "; break;
case 2: R.Response = " " + _resp.StatusCode + "\n"; break;
case 3: case 4: case 5: R.Response = "[DataLogger] Server response: " + byteArray.Length + " bytes sent.\n"; break;
}
R.Type = (int)ResponseObject.ResponseType.NOTICE;
_resp.Close();
}
}
}
catch (WebException e)
{
using (WebResponse response = e.Response)
{
HttpWebResponse _resp = (HttpWebResponse)response;
using (Stream _data = _resp.GetResponseStream ())
{
string _text = new StreamReader(_data).ReadToEnd();
_resp.Close();
switch (ResponseDensity) {
case 1: R.Response = " "; break;
case 2: R.Response = " " + _resp.StatusCode + "\n"; break;
case 3: case 4: case 5: R.Response = "[DataLogger] Return code: " + _resp.StatusCode + " while sending data. Data size: " + data.Length + " Server Response: " + _text + "\n"; break;
}
R.Type = (int)ResponseObject.ResponseType.ERROR;
}
}
}
finally {
request = null;
}
//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=//
return R;
}
/// <summary>
/// Logs a file to server.
/// </summary>
/// <returns>A response object that contains response string and response type that are set by server.</returns>
/// <param name="data">JSON string data.</param>
/// <param name="filePath">Path of file to be uploaded.</param>
/// <value>Logs data to server. Internally, LogData calls functions to log json data or string message. Depending on type of data the input data are sent to different URIs.</value>
public ResponseObject LogFile( string data, string filePath )
{
ResponseObject R = new ResponseObject();
string contentType = "text/html";
string paramName = "file";
string uri = "http://skylr.renci.org/api/data/file/add";
R = ( LogFileData (uri, filePath, paramName, contentType, data) );
return R;
}