Archives du projet VélIoT
Dependencies: mbed NDefLib M24SR BSP_B-L475E-IOT01
Diff: ReadUriCallbacks.h
- Revision:
- 0:8ef2057f72b4
diff -r 000000000000 -r 8ef2057f72b4 ReadUriCallbacks.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/ReadUriCallbacks.h Wed Oct 28 07:57:12 2020 +0000 @@ -0,0 +1,123 @@ +/** + ****************************************************************************** + * @file ReadUriCallbacks.cpp + * @date 12/07/2017 + * @brief Class to read and print a URI tag. + ****************************************************************************** + * + * COPYRIGHT(c) 2017 STMicroelectronics + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. Neither the name of STMicroelectronics nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************** + */ + +#include "mbed.h" +#include "NDefLib/RecordType/RecordURI.h" + +/** + * Chain of callback that will read a NDef Message and print all the + * record of type URI. + * After each operation the class will switch on a led + */ +class ReadUriCallbacks : public NDefLib::NDefNfcTag::Callbacks { + + DigitalOut &mOnOpenSession; + DigitalOut &mOnRead; + DigitalOut &mOnCloseSession; + + NDefLib::Message mMsg; + +public: + + /** + * create the callback chain + * @param onOpenSession led to switch on when the session open + * @param onWrite led to switch on when the write end + * @param onCloseSession led to switch on when the session end + */ + ReadUriCallbacks(DigitalOut &onOpenSession,DigitalOut &onRead, + DigitalOut &onCloseSession):mOnOpenSession(onOpenSession), + mOnRead(onRead),mOnCloseSession(onCloseSession){}; + + /** + * crate the new message and write it + * @param tag tag where write the message + * @param success true if the session correctly open + */ + virtual void on_session_open(NDefLib::NDefNfcTag *tag,bool success){ + if (!success) { + printf("Error opening the session\r\n"); + }//else + printf("Session opened\r\n"); + //ask to have an interrupt when the command finish + mOnOpenSession=1; + mOnCloseSession=0; + + tag->read(&mMsg); + } + + /** + * request to close the session + * @param tag tag where close the session + * @param success true if the message is correctly wrote + * @param message wrote + */ + virtual void on_message_read(NDefLib::NDefNfcTag *tag,bool success, + const NDefLib::Message*){ + + if (!success) { + printf("Error Reading tag!\r\n"); + } else { + const uint32_t nRecords =mMsg.get_N_records(); + printf("Read %d records!\r\n",nRecords); + for (uint32_t i=0;i<nRecords;i++) { + if (mMsg[i]->get_type()== NDefLib::Record::TYPE_URI) { + NDefLib::RecordURI *rUri = (NDefLib::RecordURI *)mMsg[i]; + printf("UriType: %x\r\nUriContent: %s\r\n", + rUri->get_uri_id(), + rUri->get_content().c_str()); + }//if + }//for + NDefLib::Message::remove_and_delete_all_record(mMsg); + mOnRead=1; + }//if-else + tag->close_session(); + } + + /** + * switch on the led + * @param tag where the session is closed + * @param success true if the session is correctly close + */ + virtual void on_session_close(NDefLib::NDefNfcTag*, bool success) { + if (success) { + printf("Session closed\r\n"); + mOnCloseSession=1; + mOnOpenSession=0; + mOnRead=0; + } else { + printf("Error opening the session\r\n"); + } + } +};