de.stadtrallye.rallyesoft.net.NfcCallback.java Source code

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Here is the source code for de.stadtrallye.rallyesoft.net.NfcCallback.java

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/*
 * Copyright (c) 2014 Jakob Wenzel, Ramon Wirsch.
 *
 * This file is part of RallyeSoft.
 *
 * RallyeSoft is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * RallyeSoft is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with RallyeSoft. If not, see <http://www.gnu.org/licenses/>.
 */

package de.stadtrallye.rallyesoft.net;

import android.annotation.TargetApi;
import android.nfc.NdefMessage;
import android.nfc.NdefRecord;
import android.nfc.NfcAdapter.CreateNdefMessageCallback;
import android.nfc.NfcEvent;
import android.util.Log;

import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;

import java.nio.charset.Charset;

import de.stadtrallye.rallyesoft.common.Std;
import de.stadtrallye.rallyesoft.model.Server;
import de.stadtrallye.rallyesoft.util.converters.Serialization;

@TargetApi(14)
public class NfcCallback implements CreateNdefMessageCallback {

    private static final String THIS = NfcCallback.class.getSimpleName();
    private final Server server;

    public NfcCallback(Server server) {
        this.server = server;
    }

    @Override
    @TargetApi(14)
    public NdefMessage createNdefMessage(NfcEvent event) {
        ObjectMapper mapper = Serialization.getJsonInstance();
        String text = null;
        try {
            text = mapper.writeValueAsString(server.exportLogin());
        } catch (JsonProcessingException e) {
            Log.e(THIS, "Could not export Login", e);
        }
        NdefMessage msg = new NdefMessage(new NdefRecord[] {
                new NdefRecord(NdefRecord.TNF_MIME_MEDIA, Std.APP_MIME.getBytes(Charset.forName("US-ASCII")),
                        new byte[0], text.getBytes(Charset.forName("US_ASCII"))),
                NdefRecord.createApplicationRecord("de.stadtrallye.rallyesoft") });
        return msg;
    }

}