Diff: ReadUriCallbacks.h

Revision:

0:3e88cb856f63

diff -r 000000000000 -r 3e88cb856f63 ReadUriCallbacks.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ReadUriCallbacks.h	Thu Aug 10 16:59:44 2017 +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");
+        }
+    }
+};