Download NHK English news podcast automatically. This application requires mpod mother board. See also http://mbed.org/users/geodenx/notebook/mpod/
Dependencies: BlinkLed HTTPClient EthernetInterface FatFileSystemCpp MSCFileSystem mbed-rtos mbed
Download NHK English news podcast automatically. This application requires mpod mother board. See also http://mbed.org/users/geodenx/notebook/mpod/
Diff: main.cpp
- Revision:
- 3:07562878d3c3
- Parent:
- 2:0da3a4508b46
- Child:
- 4:ab3092d15121
diff -r 0da3a4508b46 -r 07562878d3c3 main.cpp --- a/main.cpp Sat Aug 18 16:46:40 2012 +0000 +++ b/main.cpp Sun Aug 19 15:57:55 2012 +0000 @@ -5,12 +5,7 @@ #include "HTTPFile.h" #include "BlinkLed.h" #include "tinyxml2.h" -#include <string> -#include <iostream> -using std::string; -using std::cout; -using std::endl; using namespace tinyxml2; int GetFile(const char *path, const char *url); @@ -18,8 +13,10 @@ EthernetInterface eth; HTTPClient http; MSCFileSystem usb("usb"); -BlinkLed led1(LED1, 6); -BlinkLed led2(LED2, 1); +BlinkLed led1(LED1, 0.02); +BlinkLed led2(LED2, 0.2); +BlinkLed ethGreen(p26, 0.02); +BlinkLed ethYellow(p25, 0.2); DigitalOut fsusb30s(p9); Timer timer; @@ -43,35 +40,35 @@ eth.connect(); // Obtain original lastBuildDate - string lastBuildDateOriginal; + char lastBuildDateOriginal[128] = {0}; { XMLDocument docOriginal; if(XML_SUCCESS != docOriginal.LoadFile(rssPath)) { - lastBuildDateOriginal = "No original english.xml in USB memory"; + strcpy(lastBuildDateOriginal, "No original english.xml in USB memory"); } else { XMLElement* lastBuildDateOriginalElement = docOriginal.FirstChildElement("rss")->FirstChildElement("channel")->FirstChildElement("lastBuildDate"); if(NULL == lastBuildDateOriginalElement) { - lastBuildDateOriginal = "No \"lastBuildDate\" element in original RSS"; + strcpy(lastBuildDateOriginal, "No \"lastBuildDate\" element in original RSS"); } else { - lastBuildDateOriginal = lastBuildDateOriginalElement->GetText(); + strcpy(lastBuildDateOriginal, lastBuildDateOriginalElement->GetText()); } } } - cout << endl << "lastBuildDate (original): " << lastBuildDateOriginal << endl; + printf("\nlastBuildDate (original): %s\n", lastBuildDateOriginal); // Download RSS GetFile(rssPath, rssUrl); // Obtain current lastBuildDate - string lastBuildDateCurrent; - string mp3Url; - string mp3Length; + char lastBuildDateCurrent[128] = {0}; + char mp3Url[256] = {0}; + char mp3Length[32] = {0}; { XMLDocument docCurrent; if(XML_SUCCESS != docCurrent.LoadFile(rssPath)) @@ -86,7 +83,7 @@ fsusb30s = 1; // HSD2 error("No \"lastBuildDate\" element in current RSS.\n"); } - lastBuildDateCurrent = lastBuildDateCurrentElement->GetText(); + strcpy(lastBuildDateCurrent, lastBuildDateCurrentElement->GetText()); XMLElement* enclosureElement = docCurrent.FirstChildElement("rss")->FirstChildElement("channel")->FirstChildElement("item")->FirstChildElement("enclosure"); if(NULL == enclosureElement) @@ -94,54 +91,55 @@ fsusb30s = 1; // HSD2 error("No \"enclosure\" element in current RSS.\n"); } - mp3Url = enclosureElement->Attribute( "url" ); - mp3Length = enclosureElement->Attribute( "length" ); + strcpy(mp3Url, enclosureElement->Attribute("url")); + strcpy(mp3Length, enclosureElement->Attribute("length")); } - cout << endl << "lastBuildDate (current) : " << lastBuildDateCurrent << endl; + printf("\nlastBuildDate (current) : %s\n", lastBuildDateCurrent); // Determine the necessity of downloading new MP3. bool flgDownloadMp3 = false; - if (lastBuildDateOriginal == lastBuildDateCurrent) + if ( strcmp(lastBuildDateOriginal, lastBuildDateCurrent) == 0 ) { - cout << "lastBuildDate (original) == lastBuildDate (current)" << endl; + printf("lastBuildDate (original) == lastBuildDate (current)\n"); FILE* mp3fp = fopen(mp3Path, "r"); // check an existance of english.mp3 if (mp3fp != NULL) { fseek(mp3fp, 0, SEEK_END); // seek to end of file - if (ftell(mp3fp) != atol(mp3Length.c_str())) + if (ftell(mp3fp) != atol(mp3Length)) { - cout << "MP3 file size is invalid." << endl; + printf("MP3 file size is invalid.\n"); flgDownloadMp3 = true; } fclose(mp3fp); } else { - cout << "However, no enlish.mp3 in USB memory" << endl; + printf("However, no enlish.mp3 in USB memory\n"); flgDownloadMp3 = true; } } else { - cout << "lastBuildDate (original) != lastBuildDate (current)" << endl; + printf("lastBuildDate (original) != lastBuildDate (current)\n"); flgDownloadMp3 = true; } // Download new MP3 if(flgDownloadMp3 == true) { - GetFile(mp3Path, mp3Url.c_str()); + GetFile(mp3Path, mp3Url); } // Wait for the completion of writing to USB Mass Storage Device. wait(1); // FSUSB30 switches to HSD2 (External Device) - cout << endl << "USB host was switched to HSD2(External Device)." << endl; + printf("\nUSB host was switched to HSD2(External Device).\n"); fsusb30s = 1; // HSD2 // blink LED led1.startBlink(); + ethGreen.startBlink(); while(true){} } @@ -149,7 +147,8 @@ int GetFile(const char *path, const char *url) { led2.startBlink(); - cout << endl << "Getting " << url << endl; + ethYellow.startBlink(); + printf("\nGetting %s\n", url); timer.stop(); timer.reset(); @@ -159,16 +158,15 @@ HTTPResult retGet = http.get(url, &file); if (retGet != HTTP_OK) { - // FSUSB30 switches to HSD2 (External Device) - cout << "USB host was switched to HSD2(External Device)." << endl; fsusb30s = 1; // HSD2 error("Error in http.get in GetFile(): %d\n", retGet); } file.clear(); timer.stop(); - cout << "timer.read_ms(): " << timer.read_ms() << endl; + printf("timer.read_ms(): %d\n", timer.read_ms()); led2.finishBlink(); + ethYellow.finishBlink(); return (0); }