Qiming Lin
A
Diff: getData.cpp
- Revision:
- 0:cde2733d9088
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/getData.cpp Mon Nov 27 06:05:26 2017 +0000
@@ -0,0 +1,179 @@
+#include"mbed.h"
+#include"getData.h"
+#include"OneWire_Functions.h"
+#include "HTTPServer.h"
+
+OneWire ow(p21);
+Serial pc1(USBTX,USBRX);
+getData::getData(const char* rootPath, const char* localPath, HTTPConnection::HTTPMessage& Msg, TCPSocketConnection& Tcp)
+ : HTTPRequestHandler(Msg, Tcp)// inherit from HttpRequestHandler
+{
+ m_rootPath = rootPath;
+ m_localPath = localPath;
+ handleRequest();
+}
+getData::~getData()
+{
+}
+
+int getData::handlePutRequest()
+{
+ return 404;
+}
+int getData::handlePostRequest()
+{
+ return 404;
+}
+
+std::string getData::getpath()
+{
+ return m_rootPath;
+}
+/** Handler function to serve GET requests. Download ressource from server from \c uri location.
+ */
+int getData::handleGetRequest()
+{
+ char outBuf[1024] = {}; // the web page buffer
+ char htpmsg[10]= {}; //http message
+ char h1[5]= {};
+ char h2[1]= {};
+ bool retval = false;
+ int err = 404;
+ int i=0;
+ int m=0;
+ int h,j=8;
+ int16_t d1,d2,d3,d4,d5;
+ float t1,t2,t3,t4,t5;
+ float config;
+ char temp;
+ map<string ,string >::iterator iter;// interation the map
+
+ strncpy(htpmsg,msg.uri.c_str(),msg.uri.length());// convert the string to char*
+ // if recive the path "get" eg:127.0.0.1/get/ we will get the data from onewire.
+ if(strcmp(htpmsg,"/get")==0) {
+
+ if(ow.Read_Temp_On_bus()) {
+ //Get the resolution from onewire, there are some different arguments ot calculate the temperture
+ if(ow.sca[0]==0x1f) {
+ h=3;
+ config=0.5;
+ } else if(ow.sca[0]==0x3f) {
+ h=2;
+ config=0.25;
+ } else if(ow.sca[0]==0x5f) {
+ h=1;
+ config=0.125;
+ } else if(ow.sca[0]==0x7f) {
+ h=0;
+ config=0.0625;
+ }
+ // calculate the temperture
+ d1=((ow.alltemp[9]<<(j-h))|(ow.alltemp[8]>>h));
+ d2=((ow.alltemp[7]<<(j-h))|(ow.alltemp[6]>>h));
+ d3=((ow.alltemp[5]<<(j-h))|(ow.alltemp[4]>>h));
+ d4=((ow.alltemp[3]<<(j-h))|(ow.alltemp[2]>>h));
+ d5=((ow.alltemp[1]<<(j-h))|(ow.alltemp[0]>>h));
+ t1=d1*config;
+ t2=d2*config;
+ t3=d3*config;
+ t4=d4*config;
+ t5=d5*config;
+ // formating the webpage
+ sprintf(outBuf,"<h2>Temperature</h2><dd><dt>D1:%f</dt><br/><dt>D2:%f</dt><br/><dt>D3:%f</dt><br/><dt>D4:%f</dt><br/><dt>D5:%f</dt><br/></dd><form name=\"input\"action=\"/get\"method=\"get\"><input type=\"submit\"value=\"Refresh\"></form><dd><a href=\"/setalert\"><dt>Alarm set</dt></a><a href=\"/setreso\"><dt><br/>Resolution set</dt></a></dd>",t1,t2,t3,t4,t5);
+ } else {
+ sprintf(outBuf,"No device on bus!");
+ }
+ }//if recive the path "setalert" eg:127.0.0.1/setalert/ we will get the alert temperture and set the alert temperture .
+ else if(strcmp(htpmsg,"/setalert")==0) {
+
+ if(ow.sca[2]==0x20) {
+ i=32;
+ } else if(ow.sca[2]==0x30) {
+ i=48;
+ } else if(ow.sca[2]==0x40) {
+ i=64;
+ } else if(ow.sca[2]==0x50) {
+ i=80;
+ }//
+ if(!msg.args.empty()) {
+ //get the arguments from the require message
+ for(iter=msg.args.begin(); iter!=msg.args.end(); iter++) {
+ strncpy(h1,iter->first.c_str(),iter->first.length());//key
+ strncpy(h2,iter->second.c_str(),iter->second.length());//value
+ }
+ temp=h2[0];
+ switch(temp) {
+ case '1':
+ ow.sca[2]=0x20;
+ i=32;
+ break;
+ case '2':
+ ow.sca[2]=0x30;
+ i=48;
+ break;
+ case '3':
+ ow.sca[2]=0x40;
+ i=64;
+ break;
+ case '4':
+ ow.sca[2]=0x50;
+ i=80;
+ break;
+ }
+ ow.Change_Res(); //change the temp alarm
+ sprintf(outBuf,"<h2>Temperture setting</h2>Now is %d.<br><br><div><form name=\"set\"action=\"/setalert\"method=\"get\">32<input type=\"radio\"name=\"s\"value=\"1\">48<input type=\"radio\"name=\"s\"value=\"2\">64<input type=\"radio\"name=\"s\"value=\"3\">80<input type=\"radio\"name=\"s\"value=\"4\"><input type=\"submit\"value=\"Submit\"></form></div><a href=\"/get\">Back</a>",i);
+ } else {
+ // if the server dont get the arguments just refresh the page or go into this pages from other one
+ sprintf(outBuf,"<h2>Temperture setting</h2>Now is %d.<br><br><div><form name=\"set\"action=\"/setalert\"method=\"get\">32<input type=\"radio\"name=\"s\"value=\"1\">48<input type=\"radio\"name=\"s\"value=\"2\">64<input type=\"radio\"name=\"s\"value=\"3\">80<input type=\"radio\"name=\"s\"value=\"4\"><input type=\"submit\"value=\"Submit\"></form></div><a href=\"/get\">Back</a>",i);
+ }
+ }//if recive the path "setreso" eg:127.0.0.1/setreso/ we will get the resolution and set the resolution .
+ else if(strcmp(htpmsg,"/setreso")==0) {
+
+ if(ow.sca[0]==0x1f) {
+ m=9;
+ } else if(ow.sca[0]==0x3f) {
+ m=10;
+ } else if(ow.sca[0]==0x5f) {
+ m=11;
+ } else if(ow.sca[0]==0x7f) {
+ m=12;
+ }
+ if(!msg.args.empty()) {
+ for(iter=msg.args.begin(); iter!=msg.args.end(); iter++) {
+ strncpy(h1,iter->first.c_str(),iter->first.length());
+ strncpy(h2,iter->second.c_str(),iter->second.length());
+ }
+ temp=h2[0];
+ switch (temp) {
+ case '1':
+ ow.sca[0]=0x1f;
+ m=9;
+ break;
+ case '2':
+ ow.sca[0]=0x3f;
+ m=10;
+ break;
+ case '3':
+ ow.sca[0]=0x5f;
+ m=11;
+ break;
+ case '4':
+ ow.sca[0]=0x7f;
+ m=12;
+ break;
+ }
+ ow.Change_Res();//change the resolution
+ sprintf(outBuf,"<h2> Resolution setting</h2>Now is %d-bit.<br><br><div><form name=\"set\" action=\"/setreso\" method=\"get\">9-bit<input type=\"radio\" name=\"s\" value=\"1\">10-bit<input type=\"radio\" name=\"s\" value=\"2\">11-bit<input type=\"radio\" name=\"s\" value=\"3\">12-bit<input type=\"radio\" name=\"s\" value=\"4\"><input type=\"submit\" value=\"Submit\"></form></div><a href=\"/get\">Back</a>",m);
+ } else {
+ sprintf(outBuf,"<h2> Resolution setting</h2>Now is %d-bit.<br><br><div><form name=\"set\" action=\"/setreso\" method=\"get\">9-bit<input type=\"radio\" name=\"s\" value=\"1\">10-bit<input type=\"radio\" name=\"s\" value=\"2\">11-bit<input type=\"radio\" name=\"s\" value=\"3\">12-bit<input type=\"radio\" name=\"s\" value=\"4\"><input type=\"submit\" value=\"Submit\"></form></div><a href=\"/get\">Back</a>",m);
+ }
+ }
+ //set the web page to the web browser
+ startResponse(retval, strlen(outBuf));
+ processResponse(strlen(outBuf), outBuf);
+ endResponse();
+ err = 0;
+ return err;
+}
+
+