Duy tran / RecordType-v-16

v-16

RecordGeo.cpp@0:89e2c8a57572, 2017-12-12 (annotated)

Committer:
DuyLionTran
Date:
Tue Dec 12 15:58:23 2017 +0000
Revision:
0:89e2c8a57572
version 1.6

Who changed what in which revision?

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DuyLionTran 0:89e2c8a57572 1 /**
DuyLionTran 0:89e2c8a57572 2 ******************************************************************************
DuyLionTran 0:89e2c8a57572 3 * @file RecordGEO.cpp
DuyLionTran 0:89e2c8a57572 4 * @author ST / Central Labs
DuyLionTran 0:89e2c8a57572 5 * @version V2.0.0
DuyLionTran 0:89e2c8a57572 6 * @date 28 Apr 2017
DuyLionTran 0:89e2c8a57572 7 * @brief RecordGEO implementation.
DuyLionTran 0:89e2c8a57572 8 ******************************************************************************
DuyLionTran 0:89e2c8a57572 9 * @attention
DuyLionTran 0:89e2c8a57572 10 *
DuyLionTran 0:89e2c8a57572 11 * <h2><center>&copy; COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
DuyLionTran 0:89e2c8a57572 12 *
DuyLionTran 0:89e2c8a57572 13 * Redistribution and use in source and binary forms, with or without modification,
DuyLionTran 0:89e2c8a57572 14 * are permitted provided that the following conditions are met:
DuyLionTran 0:89e2c8a57572 15 * 1. Redistributions of source code must retain the above copyright notice,
DuyLionTran 0:89e2c8a57572 16 * this list of conditions and the following disclaimer.
DuyLionTran 0:89e2c8a57572 17 * 2. Redistributions in binary form must reproduce the above copyright notice,
DuyLionTran 0:89e2c8a57572 18 * this list of conditions and the following disclaimer in the documentation
DuyLionTran 0:89e2c8a57572 19 * and/or other materials provided with the distribution.
DuyLionTran 0:89e2c8a57572 20 * 3. Neither the name of STMicroelectronics nor the names of its contributors
DuyLionTran 0:89e2c8a57572 21 * may be used to endorse or promote products derived from this software
DuyLionTran 0:89e2c8a57572 22 * without specific prior written permission.
DuyLionTran 0:89e2c8a57572 23 *
DuyLionTran 0:89e2c8a57572 24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
DuyLionTran 0:89e2c8a57572 25 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
DuyLionTran 0:89e2c8a57572 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DuyLionTran 0:89e2c8a57572 27 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
DuyLionTran 0:89e2c8a57572 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DuyLionTran 0:89e2c8a57572 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
DuyLionTran 0:89e2c8a57572 30 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
DuyLionTran 0:89e2c8a57572 31 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
DuyLionTran 0:89e2c8a57572 32 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
DuyLionTran 0:89e2c8a57572 33 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
DuyLionTran 0:89e2c8a57572 34 *
DuyLionTran 0:89e2c8a57572 35 ******************************************************************************
DuyLionTran 0:89e2c8a57572 36 */
DuyLionTran 0:89e2c8a57572 37 #include <cstdio>
DuyLionTran 0:89e2c8a57572 38
DuyLionTran 0:89e2c8a57572 39 #include "RecordGeo.h"
DuyLionTran 0:89e2c8a57572 40
DuyLionTran 0:89e2c8a57572 41 namespace NDefLib {
DuyLionTran 0:89e2c8a57572 42
DuyLionTran 0:89e2c8a57572 43 const std::string RecordGeo::sGeoTag = ("geo:");
DuyLionTran 0:89e2c8a57572 44
DuyLionTran 0:89e2c8a57572 45 //number of digits used for print the coordintate
DuyLionTran 0:89e2c8a57572 46 #define N_FLOAT_DIGIS 4
DuyLionTran 0:89e2c8a57572 47 #define N_INTEGER_DIGIS 3
DuyLionTran 0:89e2c8a57572 48 //string with the 2 coordinate format
DuyLionTran 0:89e2c8a57572 49 #define COORDINATE_WRITE_FORMAT "%3.4f,%3.4f"
DuyLionTran 0:89e2c8a57572 50 //+1 = sign, +1 = .
DuyLionTran 0:89e2c8a57572 51 #define COORDINATE_STR_SIZE (1+N_INTEGER_DIGIS+1+N_FLOAT_DIGIS)
DuyLionTran 0:89e2c8a57572 52
DuyLionTran 0:89e2c8a57572 53 //string to use for read a couple of coordinate
DuyLionTran 0:89e2c8a57572 54 #define COORDINATE_READ_FORMAT "%f,%f"
DuyLionTran 0:89e2c8a57572 55
DuyLionTran 0:89e2c8a57572 56
DuyLionTran 0:89e2c8a57572 57 RecordGeo::RecordGeo(const float lat, const float lon) :
DuyLionTran 0:89e2c8a57572 58 RecordURI(sGeoTag), mLatitiude(lat), mLongitude(lon), mContentIsChange(true) {
DuyLionTran 0:89e2c8a57572 59 };
DuyLionTran 0:89e2c8a57572 60
DuyLionTran 0:89e2c8a57572 61 void RecordGeo::update_content(){
DuyLionTran 0:89e2c8a57572 62 if(!mContentIsChange) {
DuyLionTran 0:89e2c8a57572 63 return;
DuyLionTran 0:89e2c8a57572 64 }
DuyLionTran 0:89e2c8a57572 65
DuyLionTran 0:89e2c8a57572 66 //2 coordinate +1 for the separator +1 for the \0
DuyLionTran 0:89e2c8a57572 67 char buffer[2*COORDINATE_STR_SIZE+1+1];
DuyLionTran 0:89e2c8a57572 68 std::sprintf(buffer,COORDINATE_WRITE_FORMAT,mLatitiude,mLongitude);
DuyLionTran 0:89e2c8a57572 69 mContent.clear();
DuyLionTran 0:89e2c8a57572 70 mContent.append(buffer);
DuyLionTran 0:89e2c8a57572 71
DuyLionTran 0:89e2c8a57572 72 mContentIsChange=false;
DuyLionTran 0:89e2c8a57572 73 }
DuyLionTran 0:89e2c8a57572 74
DuyLionTran 0:89e2c8a57572 75 RecordGeo* RecordGeo::parse(const RecordHeader &header, const uint8_t * const buffer) {
DuyLionTran 0:89e2c8a57572 76 uint16_t offset = 0;
DuyLionTran 0:89e2c8a57572 77 if (buffer[offset++] != RecordURI::sNDEFUriIdCode) {
DuyLionTran 0:89e2c8a57572 78 return NULL;
DuyLionTran 0:89e2c8a57572 79 }
DuyLionTran 0:89e2c8a57572 80 if (buffer[offset++] != RecordURI::UNKNOWN) {
DuyLionTran 0:89e2c8a57572 81 return NULL;
DuyLionTran 0:89e2c8a57572 82 }
DuyLionTran 0:89e2c8a57572 83 if (sGeoTag.compare(0, sGeoTag.size(), (const char*) buffer + offset, sGeoTag.size()) != 0) {
DuyLionTran 0:89e2c8a57572 84 return NULL;
DuyLionTran 0:89e2c8a57572 85 }
DuyLionTran 0:89e2c8a57572 86 offset += sGeoTag.size();
DuyLionTran 0:89e2c8a57572 87
DuyLionTran 0:89e2c8a57572 88 const std::string uriContent((const char*) (buffer + offset), header.get_payload_length() - offset);
DuyLionTran 0:89e2c8a57572 89
DuyLionTran 0:89e2c8a57572 90 float lat, lon;
DuyLionTran 0:89e2c8a57572 91 //build the record only if both the coordinate are available
DuyLionTran 0:89e2c8a57572 92 if (std::sscanf(uriContent.c_str(),COORDINATE_READ_FORMAT,&lat,&lon)!=2) {
DuyLionTran 0:89e2c8a57572 93 return NULL;
DuyLionTran 0:89e2c8a57572 94 }
DuyLionTran 0:89e2c8a57572 95
DuyLionTran 0:89e2c8a57572 96 return new RecordGeo(lat,lon);
DuyLionTran 0:89e2c8a57572 97 }
DuyLionTran 0:89e2c8a57572 98
DuyLionTran 0:89e2c8a57572 99 } /* namespace NDefLib */
DuyLionTran 0:89e2c8a57572 100
DuyLionTran 0:89e2c8a57572 101
DuyLionTran 0:89e2c8a57572 102 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/