src/com/android/apps/tag/TagService.java

/*
 * Copyright (C) 2010 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License
 */

package com.android.apps.tag;

import com.android.apps.tag.provider.TagContract.NdefMessages;

import android.app.IntentService;
import android.app.PendingIntent;
import android.app.PendingIntent.CanceledException;
import android.content.ContentValues;
import android.content.Context;
import android.content.Intent;
import android.net.Uri;
import android.nfc.NdefMessage;
import android.os.Parcelable;
import android.util.Log;

public class TagService extends IntentService {
    private static final String TAG = "TagService";

    private static final String EXTRA_SAVE_MSGS = "msgs";
    private static final String EXTRA_DELETE_URI = "delete";
    private static final String EXTRA_STAR_URI = "set_star";
    private static final String EXTRA_UNSTAR_URI = "remove_star";
    private static final String EXTRA_STARRED = "starred";
    private static final String EXTRA_PENDING_INTENT = "pending";

    private static final boolean DEBUG = true;

    public TagService() {
        super("SaveTagService");
    }

    @Override
    public void onHandleIntent(Intent intent) {
        if (intent.hasExtra(EXTRA_SAVE_MSGS)) {
            Parcelable[] msgs = intent.getParcelableArrayExtra(EXTRA_SAVE_MSGS);
            NdefMessage msg = (NdefMessage) msgs[0];

            ContentValues values = NdefMessages.toValues(this, msg, false, System.currentTimeMillis());
            Uri uri = getContentResolver().insert(NdefMessages.CONTENT_URI, values);

            if (intent.hasExtra(EXTRA_PENDING_INTENT)) {
                Intent result = new Intent();
                result.setData(uri);

                PendingIntent pending = (PendingIntent) intent.getParcelableExtra(EXTRA_PENDING_INTENT);

                try {
                    pending.send(this, 0, result);
                } catch (CanceledException e) {
                    if (DEBUG) Log.d(TAG, "Pending intent was canceled.");
                }
            }

            return;
        }

        if (intent.hasExtra(EXTRA_DELETE_URI)) {
            Uri uri = (Uri) intent.getParcelableExtra(EXTRA_DELETE_URI);
            getContentResolver().delete(uri, null, null);
            return;
        }

        if (intent.hasExtra(EXTRA_STAR_URI)) {
            Uri uri = (Uri) intent.getParcelableExtra(EXTRA_STAR_URI);
            ContentValues values = new ContentValues();
            values.put(NdefMessages.STARRED, 1);
            getContentResolver().update(uri, values, null, null);
        }

        if (intent.hasExtra(EXTRA_UNSTAR_URI)) {
            Uri uri = (Uri) intent.getParcelableExtra(EXTRA_UNSTAR_URI);
            ContentValues values = new ContentValues();
            values.put(NdefMessages.STARRED, 0);
            getContentResolver().update(uri, values, null, null);
        }
    }

    public static void saveMessages(Context context, NdefMessage[] msgs, boolean starred,
            PendingIntent pending) {
        Intent intent = new Intent(context, TagService.class);
        intent.putExtra(TagService.EXTRA_SAVE_MSGS, msgs);
        intent.putExtra(TagService.EXTRA_STARRED, starred);
        intent.putExtra(TagService.EXTRA_PENDING_INTENT, pending);
        context.startService(intent);
    }

    public static void delete(Context context, Uri uri) {
        Intent intent = new Intent(context, TagService.class);
        intent.putExtra(TagService.EXTRA_DELETE_URI, uri);
        context.startService(intent);
    }

    public static void setStar(Context context, Uri message, boolean star) {
        Intent intent = new Intent(context, TagService.class);
        if (star) {
            intent.putExtra(EXTRA_STAR_URI, message);
        } else {
            intent.putExtra(EXTRA_UNSTAR_URI, message);
        }
        context.startService(intent);
    }
}