Diff: plotly.cpp.orig

Revision:

8:d4f705ba2ea5

Parent:

7:9409a72ab6c0

--- a/plotly.cpp.orig	Tue Jul 29 13:30:31 2014 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,378 +0,0 @@
-#include "plotly.h"
-#include "mbed.h"
-
-#define plotlyURL "plot.ly"
-#define dataURL "arduino.plot.ly"
-
-plotly::plotly(char *username, char *api_key, char* stream_token, char *filename)
-{
-    log_level = 3;  // 0 = Debugging, 1 = Informational, 2 = Status, 3 = Errors, 4 = Quiet (// Serial Off)
-    dry_run = false;
-    username_ = username;
-    api_key_ = api_key;
-    stream_token_ = stream_token;
-    filename_ = filename;
-    maxpoints = 30;
-    world_readable = true;
-    convertTimestamp = false;
-    timezone = "America/Montreal";
-    fileopt = "overwrite";
-
-    socket = NULL;
-
-    initalised = false;
-}
-
-
-plotly::~plotly()
-{
-    closeStream();
-
-}
-
-
-bool plotly::init()
-{
-
-    //
-    //  Create plot with a REST post to plotly
-    //  See the clientresp section of https://plot.ly/rest/ for details
-    //
-    if(dry_run && log_level < 3) {
-        fprintf(stderr,"... This is a dry run, we are not connecting to plotly's servers...\n");
-    } else if(log_level < 3) {
-        fprintf(stderr,"... Attempting to connect to plotly's REST servers\n");
-    }
-
-    if (!dry_run) {
-        int pause = 1;
-        socket = new TCPSocketConnection();
-        while (socket->connect(plotlyURL, 80) < 0) {
-            if (pause > 30) {
-                fprintf(stderr,"Failed to connect. :-(\n");
-                delete socket;
-                return false;
-            }
-            fprintf(stderr,"... Couldn\'t connect to plotly's REST servers... trying again!\n");
-            wait(pause);
-            pause *= 2;
-        }
-    }
-
-    if(log_level < 3) fprintf(stderr,"... Connected to plotly's REST servers\n");
-
-    if(log_level < 3) fprintf(stderr,"... Sending HTTP Post to plotly\n");
-
-    print_("POST /clientresp HTTP/1.1\r\n");
-    print_("Host: 107.21.214.199\r\n");
-    print_("User-Agent: Arduino/0.5.1\r\n");
-    print_("plotly-streamtoken: ");
-    print_(stream_token_);
-    printNetTerminator_();
-
-    print_("Content-Length: ");
-
-    // calculate the length of the packet payload and store it in the big buffer.
-    int lineLen = snprintf(buffer,k_bufferSize,"version=2.3&origin=plot&platform=arduino&un=%s&key=%s&args=[",username_,api_key_);
-    lineLen += snprintf((buffer+lineLen),k_bufferSize-lineLen,"{\"y\": [], \"x\": [], \"type\": \"scatter\", \"stream\": {\"token\": \"%s\", \"maxpoints\": %d}}",stream_token_,maxpoints);
-    lineLen += snprintf((buffer+lineLen),k_bufferSize-lineLen,"]&kwargs={\"fileopt\": \"%s\", \"filename\": \"%s\", \"world_readable\": %s}",fileopt,filename_,world_readable?"true":"false");
-
-    print_(lineLen);
-
-    printNetTerminator_();
-    printNetTerminator_();
-
-    sendFormatedText(buffer,lineLen);
-
-    printNetTerminator_();
-
-    //
-    // Wait for a response
-    // Parse the response for the "All Streams Go!" and proceed to streaming
-    // if we find it
-    //
-
-    char allStreamsGo[] = "All Streams Go!";
-    int asgCnt = 0; // asg stands for All Streams Go
-    char url[] = "\"url\": \"http://107.21.214.199/~";
-    char fid[4];
-    int fidCnt = 0;
-    int urlCnt = 0;
-    int usernameCnt = 0;
-    bool proceed = false;
-    bool fidMatched = false;
-    char c;
-
-    if(log_level < 2) {
-        fprintf(stderr,"... Sent message, waiting for plotly's response...\n");
-    }
-
-    if(!dry_run) {
-        while(!proceed) {
-            int32_t dataIn = socket->receive(buffer,k_bufferSize -1);
-            if (dataIn < 0) {
-                if(log_level < 3) fprintf(stderr,"error reading network socket\n");
-                break;
-            }
-            if(dataIn > 0) {
-                buffer[dataIn]=0;
-
-                if(log_level < 2) fprintf(stderr,buffer);
-
-                for (int i = 0; i<dataIn; i++) {
-                    c = buffer[i];
-                    //
-                    // Attempt to read the "All streams go" msg if it exists
-                    // by comparing characters as they roll in
-                    //
-
-                    if(asgCnt == strlen(allStreamsGo) && !proceed) {
-                        proceed = true;
-                    } else if(allStreamsGo[asgCnt]==c) {
-                        asgCnt += 1;
-                    } else if(asgCnt > 0) {
-                        // reset counter
-                        asgCnt = 0;
-                    }
-
-                    //
-                    // Extract the last bit of the URL from the response
-                    // The url is in the form http://107.21.214.199/~USERNAME/FID
-                    // We'll character-count up through char url[] and through username_, then start
-                    // filling in characters into fid
-                    //
-
-                    if(log_level < 3) {
-                        if(url[urlCnt]==c && urlCnt < strlen(url)) {
-                            urlCnt += 1;
-                        } else if(urlCnt > 0 && urlCnt < strlen(url)) {
-                            // Reset counter
-                            urlCnt = 0;
-                        }
-                        if(urlCnt == strlen(url) && fidCnt < 4 && !fidMatched) {
-                            // We've counted through the url, start counting through the username
-                            if(usernameCnt < strlen(username_)+2) {
-                                usernameCnt += 1;
-                            } else {
-                                // the url ends with "
-                                if(c != '"') {
-                                    fid[fidCnt] = c;
-                                    fidCnt += 1;
-                                } else if(fidCnt>0) {
-                                    fidMatched = true;
-                                }
-
-                            }
-                        }
-                    }
-                }
-            }
-            wait(0.1);
-        }
-    }
-
-    if(!dry_run && !proceed && log_level < 4) {
-        fprintf(stderr,"... Error initializing stream, aborting. Try again or get in touch with Chris at chris@plot.ly\n");
-    }
-
-    if(!dry_run && proceed && log_level < 3) {
-        fprintf(stderr,"... A-ok from plotly, All Streams Go!\n");
-        if(fidMatched) {
-            fprintf(stderr,"... View your streaming plot here: https://plot.ly/~");
-            fprintf(stderr,username_);
-            fprintf(stderr,"/");
-            for(int i=0; i<fidCnt; i++) {
-                fprintf(stderr,"%c",fid[i]);
-            }
-            fprintf(stderr,"\n");
-        }
-    }
-
-    if (proceed || dry_run) {
-        initalised = true;
-    }
-    if (socket) {
-        delete socket;
-        socket=NULL;
-    }
-    return initalised;
-}
-
-bool plotly::openStream()
-{
-
-    if (!initalised)
-        return false;
-
-    //
-    // Start request to stream servers
-    //
-
-    if (socket) {
-        delete socket;
-        socket = NULL;
-    }
-
-
-    if(log_level < 3) fprintf(stderr,"... Connecting to plotly's streaming servers...\n");
-
-
-    if (!dry_run) {
-        int pause = 1;
-        socket = new TCPSocketConnection();
-        while (socket->connect(dataURL, 80) < 0) {
-            if (pause > 30) {
-                fprintf(stderr,"Failed to connect. :-(\n");
-                delete socket;
-                return false;
-            }
-            fprintf(stderr,"... Couldn\'t connect to plotly's REST servers... trying again!\n");
-            wait(pause);
-            pause *= 2;
-        }
-    }
-
-
-    if(log_level < 3) fprintf(stderr,"... Connected to plotly's streaming servers\n... Initializing stream\n");
-
-    print_("POST / HTTP/1.1\r\n");
-    print_("Host: arduino.plot.ly\r\n");
-    print_("User-Agent: Python\r\n");
-    print_("Transfer-Encoding: chunked\r\n");
-    print_("Connection: close\r\n");
-    print_("plotly-streamtoken: ");
-    print_(stream_token_);
-    printNetTerminator_();
-    if(convertTimestamp) {
-        print_("plotly-convertTimestamp: \"");
-        print_(timezone);
-        print_("\"");
-        printNetTerminator_();
-    }
-    printNetTerminator_();
-
-    if(log_level < 3) fprintf(stderr,"... Done initializing, ready to stream!\n");
-    return true;
-}
-
-void plotly::closeStream()
-{
-    if (socket) {
-        if (socket->is_connected()) {
-            print_("0\r\n\r\n");
-            socket->close();
-        }
-        delete socket;
-        socket=NULL;
-    }
-}
-
-void plotly::reconnectStream()
-{
-    while(!dry_run && (!socket || !socket->is_connected())) {
-        if(log_level<4) fprintf(stderr,"... Disconnected from streaming servers\n");
-        closeStream();
-        openStream();
-    }
-}
-
-void plotly::plot(unsigned long x, int y)
-{
-    if (!initalised)
-        return;
-
-    reconnectStream();
-
-    // need to prefix with the length so print it once to get the content lenght and then a second time with the prefix.
-    int len = snprintf(buffer,k_bufferSize,"{\"x\": %lu, \"y\": %d}\n", x,y);
-    len = snprintf(buffer,k_bufferSize,"%x\r\n{\"x\": %lu, \"y\": %d}\n\r\n",len, x,y);
-    sendFormatedText(buffer,len);
-}
-
-void plotly::plot(unsigned long x, float y)
-{
-    if (!initalised)
-        return;
-
-    reconnectStream();
-
-    // need to prefix with the length so print it once to get the content lenght and then a second time with the prefix.
-    int len = snprintf(buffer,k_bufferSize,"{\"x\": %lu, \"y\": %.3f}\n", x,y);
-    len = snprintf(buffer,k_bufferSize,"%x\r\n{\"x\": %lu, \"y\": %.3f}\n\r\n",len, x,y);
-    sendFormatedText(buffer,len);
-}
-
-void plotly::plot(float x, float y)
-{
-    if (!initalised)
-        return;
-
-    reconnectStream();
-
-    // need to prefix with the length so print it once to get the content lenght and then a second time with the prefix.
-    int len = snprintf(buffer,k_bufferSize,"{\"x\": %.3f, \"y\": %.3f}\n", x,y);
-    len = snprintf(buffer,k_bufferSize,"%x\r\n{\"x\": %.3f, \"y\": %.3f}\n\r\n",len, x,y);
-    sendFormatedText(buffer,len);
-}
-
-
-bool plotly::print_(int d)
-{
-    char smallBuffer[10];
-    int32_t len = snprintf(smallBuffer,10,"%d",d);
-    return sendFormatedText(smallBuffer,len);
-}
-
-bool plotly::print_(unsigned long d)
-{
-    char smallBuffer[12];
-    int32_t len = snprintf(smallBuffer,12,"%lu",d);
-    return sendFormatedText(smallBuffer,len);
-}
-
-bool plotly::print_(float d)
-{
-    char smallBuffer[12];
-    int32_t len = snprintf(smallBuffer,12,"%f",d);
-    return sendFormatedText(smallBuffer,len);
-}
-
-bool plotly::printNetTerminator_()
-{
-    return sendFormatedText("\r\n",2);
-}
-
-
-bool plotly::print_(char *d) // strings could be long, use the big buffer
-{
-    int32_t len = snprintf(buffer,k_bufferSize,"%s",d);
-    return sendFormatedText(buffer,len);
-}
-
-
-bool plotly::sendFormatedText(char* data, int size)
-{
-    if(log_level < 2) {
-        fprintf(stderr,"%s",data);
-    }
-    if(!dry_run) {
-        if (!socket) {
-            fprintf(stderr,"\nTX failed, No network socket exists\n");
-            return false;
-        }
-        if (!(socket->is_connected())) {
-            fprintf(stderr,"\nTX failed, Network socket not connected\n");
-            return false;
-        }
-
-        int32_t sent = socket->send_all(data,size);
-        if (sent == size)
-            return true;
-        else {
-            fprintf(stderr,"\nTX failed to send _%s_ Sent %d of %d bytes\n",data,sent,size);
-            return false;
-        }
-    } else
-        return true;
-}
-