Kojo / WeatherInfo

Get weather Information

WeatherHacks.cpp@3:6618936f930a, 2015-11-22 (annotated)

Committer:
takashikojo
Date:
Sun Nov 22 08:50:49 2015 +0000
Revision:
3:6618936f930a
Parent:
2:76b812680942 
Serial terminal macro

Who changed what in which revision?

UserRevisionLine numberNew contents of line
takashikojo 0:6d53d6d34ac3 1 #include <mbed.h>
takashikojo 0:6d53d6d34ac3 2 #include "WeatherHacks.h"
takashikojo 0:6d53d6d34ac3 3
takashikojo 0:6d53d6d34ac3 4 #include "EthernetInterface.h"
takashikojo 0:6d53d6d34ac3 5 #include "HTTPClient.h"
takashikojo 0:6d53d6d34ac3 6 #include "XMLaide.h"
takashikojo 0:6d53d6d34ac3 7
takashikojo 0:6d53d6d34ac3 8 #define RSS_URL "http://weather.livedoor.com/forecast/rss/area/130010.xml"
takashikojo 0:6d53d6d34ac3 9
takashikojo 0:6d53d6d34ac3 10 #if 0
takashikojo 0:6d53d6d34ac3 11 //Enable debug
takashikojo 0:6d53d6d34ac3 12 #define DBG(x, ...) std::printf("[WeatherHacks : DBG]"x"\r\n", ##__VA_ARGS__);
takashikojo 0:6d53d6d34ac3 13 #define WARN(x, ...) std::printf("[WeatherHacks : WARN]"x"\r\n", ##__VA_ARGS__);
takashikojo 0:6d53d6d34ac3 14 #else
takashikojo 0:6d53d6d34ac3 15 //Disable debug
takashikojo 0:6d53d6d34ac3 16 #define DBG(x, ...)
takashikojo 0:6d53d6d34ac3 17 #define WARN(x, ...)
takashikojo 0:6d53d6d34ac3 18 #endif
takashikojo 0:6d53d6d34ac3 19
takashikojo 0:6d53d6d34ac3 20 #define ERR(x, ...) std::printf("[WeatherHacks : ERR]"x"\r\n", ##__VA_ARGS__);
takashikojo 0:6d53d6d34ac3 21
takashikojo 3:6618936f930a 22 #if 0
takashikojo 3:6618936f930a 23 #define TERMINAL(x, ...) std::printf("[WeatherHacks :]"x"\r\n", ##__VA_ARGS__);
takashikojo 3:6618936f930a 24 #else
takashikojo 3:6618936f930a 25 #define TERMINAL(x, ...)
takashikojo 3:6618936f930a 26 #endif
takashikojo 3:6618936f930a 27
takashikojo 1:8655f1720450 28 extern HTTPClient httpClient;
takashikojo 0:6d53d6d34ac3 29
takashikojo 0:6d53d6d34ac3 30 void WH_init(void)
takashikojo 0:6d53d6d34ac3 31 {
takashikojo 0:6d53d6d34ac3 32
takashikojo 0:6d53d6d34ac3 33 }
takashikojo 0:6d53d6d34ac3 34
takashikojo 2:76b812680942 35 #define LINK_SIZE 200
takashikojo 0:6d53d6d34ac3 36 static void getLink(const char *buff, char *link)
takashikojo 0:6d53d6d34ac3 37 {
takashikojo 0:6d53d6d34ac3 38 const char *p = buff ;
takashikojo 0:6d53d6d34ac3 39 p = XML_getTag(p, "item") ; p = XML_getTag(p, "item") ; p = XML_getTag(p, "link") ;
takashikojo 0:6d53d6d34ac3 40 p = XML_getElement(p, link, LINK_SIZE) ;
takashikojo 0:6d53d6d34ac3 41 }
takashikojo 0:6d53d6d34ac3 42
takashikojo 0:6d53d6d34ac3 43 static const char *getTodayP(const char *p) {
takashikojo 0:6d53d6d34ac3 44 return XML_getTag(p, "table") ;
takashikojo 0:6d53d6d34ac3 45 }
takashikojo 0:6d53d6d34ac3 46
takashikojo 0:6d53d6d34ac3 47 static const char *getTomorrowP(const char *p) {
takashikojo 0:6d53d6d34ac3 48 p = XML_getTag(p, "table") ; p = XML_getTag(p, "table") ;
takashikojo 0:6d53d6d34ac3 49 return XML_getTag(p, "table") ;
takashikojo 0:6d53d6d34ac3 50 }
takashikojo 0:6d53d6d34ac3 51
takashikojo 0:6d53d6d34ac3 52 #define TEMP_SIZE 5
takashikojo 0:6d53d6d34ac3 53 static const char *getHiTemp(const char *p, char *hi)
takashikojo 0:6d53d6d34ac3 54 {
takashikojo 0:6d53d6d34ac3 55 p = XML_getTag(p, "table") ; p = XML_getTag(p, "td") ; p = XML_getTag(p, "td") ;
takashikojo 0:6d53d6d34ac3 56 p = XML_getTag(p, "span") ;
takashikojo 0:6d53d6d34ac3 57 p = XML_getElement(p, hi, 2) ;
takashikojo 0:6d53d6d34ac3 58 return p ;
takashikojo 0:6d53d6d34ac3 59 }
takashikojo 0:6d53d6d34ac3 60
takashikojo 0:6d53d6d34ac3 61 static const char *getLoTemp(const char *p, char *lo)
takashikojo 0:6d53d6d34ac3 62 {
takashikojo 0:6d53d6d34ac3 63 p = XML_getTag(p, "tr") ; p = XML_getTag(p, "tr") ;
takashikojo 0:6d53d6d34ac3 64 p = XML_getTag(p, "td") ; p = XML_getTag(p, "td") ;
takashikojo 0:6d53d6d34ac3 65 p = XML_getTag(p, "span") ;
takashikojo 0:6d53d6d34ac3 66 p = XML_getElement(p, lo, 2) ;
takashikojo 0:6d53d6d34ac3 67 return p ;
takashikojo 0:6d53d6d34ac3 68 }
takashikojo 0:6d53d6d34ac3 69
takashikojo 0:6d53d6d34ac3 70 static const char *getPrec(const char *p, char *prec)
takashikojo 0:6d53d6d34ac3 71 {
takashikojo 0:6d53d6d34ac3 72 p = XML_getTag(p, "th") ; p = XML_getTag(p, "th") ;
takashikojo 0:6d53d6d34ac3 73 p = XML_getTag(p, "td") ; p = XML_getTag(p, "td") ; p = XML_getTag(p, "td") ;
takashikojo 0:6d53d6d34ac3 74 p = XML_getElement(p, prec, 2) ;
takashikojo 1:8655f1720450 75 if(strcmp(prec, "0%") == 0)strcpy(prec, " 0") ;
takashikojo 0:6d53d6d34ac3 76 return p ;
takashikojo 0:6d53d6d34ac3 77 }
takashikojo 0:6d53d6d34ac3 78
takashikojo 0:6d53d6d34ac3 79 static void getInfo(const char *buff, char *hi, char *lo, char *prec)
takashikojo 0:6d53d6d34ac3 80 {
takashikojo 0:6d53d6d34ac3 81 #define JST (9*60*60)
takashikojo 0:6d53d6d34ac3 82 struct tm t;
takashikojo 0:6d53d6d34ac3 83 time_t ctTime;
takashikojo 0:6d53d6d34ac3 84 ctTime = time(NULL) + JST ;
takashikojo 0:6d53d6d34ac3 85 t = *localtime(&ctTime);
takashikojo 3:6618936f930a 86 TERMINAL("Time: % 2d:%02d => ", t.tm_hour, t.tm_min) ;
takashikojo 0:6d53d6d34ac3 87 const char *p ;
takashikojo 0:6d53d6d34ac3 88
takashikojo 0:6d53d6d34ac3 89 if(t.tm_hour >= 12) {
takashikojo 0:6d53d6d34ac3 90 p = getTomorrowP(buff) ;
takashikojo 0:6d53d6d34ac3 91 } else {
takashikojo 0:6d53d6d34ac3 92 p = getTodayP(buff) ;
takashikojo 0:6d53d6d34ac3 93 }
takashikojo 0:6d53d6d34ac3 94 p = getHiTemp(p, hi) ;
takashikojo 0:6d53d6d34ac3 95 p = getLoTemp(p, lo) ;
takashikojo 0:6d53d6d34ac3 96 p = getPrec(p, prec) ;
takashikojo 3:6618936f930a 97 TERMINAL("Hi=%s, Lo=%s, Prec=%s\n", hi, lo, prec) ;
takashikojo 0:6d53d6d34ac3 98 }
takashikojo 0:6d53d6d34ac3 99
takashikojo 0:6d53d6d34ac3 100 #define FREE(p) if(p)free(p)
takashikojo 0:6d53d6d34ac3 101 #define BUFF_SIZE 1024*12
takashikojo 0:6d53d6d34ac3 102
takashikojo 2:76b812680942 103 void WH_getInfo(char *buff, int size, char *hiTemp, char *loTemp, char *prec)
takashikojo 0:6d53d6d34ac3 104 {
takashikojo 0:6d53d6d34ac3 105 int ret ;
takashikojo 1:8655f1720450 106 char link[LINK_SIZE] ;
takashikojo 2:76b812680942 107
takashikojo 1:8655f1720450 108 ret = httpClient.get(RSS_URL, buff, size);
takashikojo 0:6d53d6d34ac3 109 if (!ret) {
takashikojo 3:6618936f930a 110 DBG("Result: %s\n", buff);
takashikojo 0:6d53d6d34ac3 111 } else {
takashikojo 2:76b812680942 112 ERR("Error %s\n- ret = %d - HTTP return code = %d\n", RSS_URL, ret, httpClient.getHTTPResponseCode());
takashikojo 0:6d53d6d34ac3 113 }
takashikojo 1:8655f1720450 114
takashikojo 3:6618936f930a 115 getLink(buff, link) ; DBG("link=%s\n", link) ;
takashikojo 1:8655f1720450 116 ret = httpClient.get(link, buff, size) ;
takashikojo 2:76b812680942 117 if (!ret) {
takashikojo 3:6618936f930a 118 DBG("Result: %s\n", buff) ;
takashikojo 2:76b812680942 119 } else {
takashikojo 2:76b812680942 120 ERR("Error %s\n- ret = %d - HTTP return code = %d\n", link, ret, httpClient.getHTTPResponseCode());
takashikojo 2:76b812680942 121 }
takashikojo 1:8655f1720450 122 getInfo(buff, hiTemp, loTemp, prec);
takashikojo 2:76b812680942 123
takashikojo 0:6d53d6d34ac3 124 }