initial commit

NfcTag.cpp

@@ -0,0 +1,123 @@
+#include <NfcTag.h>
+
+NfcTag::NfcTag()
+{
+    _uid = 0;
+    _uidLength = 0;
+    _tagType = "Unknown";
+    _ndefMessage = (NdefMessage*)NULL;
+}
+
+NfcTag::NfcTag(byte *uid, unsigned int uidLength)
+{
+    _uid = uid;
+    _uidLength = uidLength;
+    _tagType = "Unknown";
+    _ndefMessage = (NdefMessage*)NULL;
+}
+
+NfcTag::NfcTag(byte *uid, unsigned int  uidLength, String tagType)
+{
+    _uid = uid;
+    _uidLength = uidLength;
+    _tagType = tagType;
+    _ndefMessage = (NdefMessage*)NULL;
+}
+
+NfcTag::NfcTag(byte *uid, unsigned int  uidLength, String tagType, NdefMessage& ndefMessage)
+{
+    _uid = uid;
+    _uidLength = uidLength;
+    _tagType = tagType;
+    _ndefMessage = new NdefMessage(ndefMessage);
+}
+
+// I don't like this version, but it will use less memory
+NfcTag::NfcTag(byte *uid, unsigned int uidLength, String tagType, const byte *ndefData, const int ndefDataLength)
+{
+    _uid = uid;
+    _uidLength = uidLength;
+    _tagType = tagType;
+    _ndefMessage = new NdefMessage(ndefData, ndefDataLength);
+}
+
+NfcTag::~NfcTag()
+{
+    delete _ndefMessage;
+}
+
+NfcTag& NfcTag::operator=(const NfcTag& rhs)
+{
+    if (this != &rhs)
+    {
+        delete _ndefMessage;
+        _uid = rhs._uid;
+        _uidLength = rhs._uidLength;
+        _tagType = rhs._tagType;
+        // TODO do I need a copy here?
+        _ndefMessage = rhs._ndefMessage;
+    }
+    return *this;
+}
+
+uint8_t NfcTag::getUidLength()
+{
+    return _uidLength;
+}
+
+void NfcTag::getUid(byte *uid, unsigned int uidLength)
+{
+    memcpy(uid, _uid, _uidLength < uidLength ? _uidLength : uidLength);
+}
+
+String NfcTag::getUidString()
+{
+    String uidString = "";
+    for (unsigned int i = 0; i < _uidLength; i++)
+    {
+        if (i > 0)
+        {
+            uidString += " ";
+        }
+
+        if (_uid[i] < 0xF)
+        {
+            uidString += "0";
+        }
+
+        uidString += String((unsigned int)_uid[i], (unsigned char)HEX);
+    }
+    uidString.toUpperCase();
+    return uidString;
+}
+
+String NfcTag::getTagType()
+{
+    return _tagType;
+}
+
+boolean NfcTag::hasNdefMessage()
+{
+    return (_ndefMessage != NULL);
+}
+
+NdefMessage NfcTag::getNdefMessage()
+{
+    return *_ndefMessage;
+}
+#ifdef NDEF_USE_SERIAL
+
+void NfcTag::print()
+{
+    Serial.print(F("NFC Tag - "));Serial.println(_tagType);
+    Serial.print(F("UID "));Serial.println(getUidString());
+    if (_ndefMessage == NULL)
+    {
+        Serial.println(F("\nNo NDEF Message"));
+    }
+    else
+    {
+        _ndefMessage->print();
+    }
+}
+#endif