main.cpp

00001 #include "mbed.h"
00002 #include "rtos.h"
00003 
00004 #include "TextLCD.h"
00005 
00006 #include "EthernetInterface.h"
00007 #include "HTTPClient.h"
00008 
00009 #include "spdomparser.hpp"
00010 #include "spxmlnode.hpp"
00011 #include "spxmlhandle.hpp"
00012 
00013 TextLCD lcd(p24, p26, p27, p28, p29, p30);
00014 char buf[3000];
00015 
00016 int main() {
00017     EthernetInterface eth;
00018     int retEth;
00019     HTTPClient http;  
00020     int retHttp;
00021     SP_XmlDomParser parser;
00022         
00023     printf("Setting up ...\r\n");
00024     lcd.cls();
00025     lcd.locate(0,0);
00026     lcd.printf("Setting Up...");
00027     
00028     eth.init();
00029     retEth = eth.connect();
00030     
00031     lcd.locate(0,0);
00032     if (!retEth) {
00033         printf("Network Setup OK\r\n");
00034         lcd.printf("Network Setup OK");
00035     } else {
00036         printf("Network Error %d\r\n", retEth);
00037         lcd.printf("Network Error %d");
00038         return -1;
00039     }
00040          
00041     while(true)
00042     {
00043         retHttp = http.get("http://weather.yahooapis.com/forecastrss?w=28426187&u=c", buf, sizeof(buf));
00044     
00045         lcd.locate(0,1);
00046         switch(retHttp){
00047         case HTTP_OK:
00048             printf("Read completely\r\n");
00049             lcd.printf("Read completely ");        
00050             break;
00051         case HTTP_TIMEOUT:
00052             printf("Connection Timeout\r\n");
00053             lcd.printf("Timeout         ");            
00054             break;
00055         case HTTP_CONN:
00056             printf("Connection Error\r\n");
00057             lcd.printf("Connection Error");
00058             break;
00059         default:
00060             printf("Error\r\n");
00061             lcd.printf("Error           ");                           
00062         }        
00063 
00064         parser.append( buf, strlen(buf)); // stream current buffer data to the XML parser
00065         wait(5.0);    
00066         printf("\r\n----------%s----------\r\n",buf);
00067         
00068         SP_XmlHandle rootHandle( parser.getDocument()->getRootElement() );
00069 
00070         /*        
00071         SP_XmlCDataNode * title = rootHandle.getChild( "channel" ).getChild("title").getChild(0).toCData();
00072         printf("\r\n === Title:%s === \r\n",title->getText());
00073         SP_XmlCDataNode * title1 = rootHandle.getChild( "channel" ).getChild("image").getChild("title").getChild(0).toCData();
00074         printf("\r\n === Title:%s === \r\n",title1->getText());
00075         SP_XmlCDataNode * title2 = rootHandle.getChild( "channel" ).getChild("item").getChild("title").getChild(0).toCData();
00076         printf("\r\n === Title:%s === \r\n",title2->getText());
00077         */
00078         
00079         SP_XmlElementNode * location = rootHandle.getChild( "channel" ).getChild( "yweather:location" ).toElement();
00080         if (location) {
00081             printf("\r\n === Location:%s === \r\n",location->getAttrValue("city"));
00082         }
00083                      
00084         SP_XmlElementNode * forecast;
00085         
00086         forecast = rootHandle.getChild( "channel" ).getChild("item").getChild( "yweather:forecast",0).toElement();
00087         if (forecast) {
00088             printf("\r\n ----- Date:%s(%s) ----- \r\n",forecast->getAttrValue("date"),forecast->getAttrValue("day"));
00089             printf("Condition:%s \n",forecast->getAttrValue("text"));
00090             printf("Temp:Low%sC High%sC\n",forecast->getAttrValue("low"),forecast->getAttrValue("high"));
00091         }        
00092         
00093         forecast = rootHandle.getChild( "channel" ).getChild("item").getChild( "yweather:forecast",1).toElement();    
00094         if (forecast) {
00095             printf("\r\n ----- Date:%s(%s) ----- \r\n",forecast->getAttrValue("date"),forecast->getAttrValue("day"));        
00096             printf("Condition:%s \n",forecast->getAttrValue("text"));
00097             printf("Temp:Low%sC High%sC\n",forecast->getAttrValue("low"),forecast->getAttrValue("high"));
00098         }        
00099         
00100         wait(120.0);
00101     }  
00102 }