net.peterkuterna.android.apps.devoxxsched.service.NewsSyncService.java Source code

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Here is the source code for net.peterkuterna.android.apps.devoxxsched.service.NewsSyncService.java

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/*
 * Copyright 2011 Peter Kuterna
 *
 * 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 net.peterkuterna.android.apps.devoxxsched.service;

import net.peterkuterna.android.apps.devoxxsched.io.LocalExecutor;
import net.peterkuterna.android.apps.devoxxsched.io.NewsHandler;
import net.peterkuterna.android.apps.devoxxsched.io.RemoteExecutor;
import net.peterkuterna.android.apps.devoxxsched.provider.CfpContract.News;
import net.peterkuterna.android.apps.devoxxsched.util.HttpUtils;
import net.peterkuterna.android.apps.devoxxsched.util.NotifierManager;
import net.peterkuterna.android.apps.devoxxsched.util.Prefs;
import net.peterkuterna.android.apps.devoxxsched.util.Prefs.DevoxxPrefs;

import org.apache.http.client.HttpClient;

import android.app.Service;
import android.content.ContentResolver;
import android.content.ContentValues;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.util.Log;

/**
 * Background {@link Service} that synchronizes the Devoxx {@link News} items.
 */
public class NewsSyncService extends AbstractSyncService {

    protected static final String TAG = "NewsSyncService";

    public static final String NEWS_URL = "https://www.devoxx.com/download/attachments/4751370/news.json";

    private static final int VERSION_NONE = 0;
    private static final int VERSION_CURRENT = 1;

    private LocalExecutor mLocalExecutor;
    private RemoteExecutor mRemoteExecutor;
    private HttpClient mHttpClient;
    private ContentResolver mResolver;

    public NewsSyncService() {
        super(TAG);
    }

    @Override
    public void onCreate() {
        super.onCreate();

        mHttpClient = HttpUtils.getHttpClient(this);
        mResolver = getContentResolver();

        mLocalExecutor = new LocalExecutor(getResources(), mResolver);
        mRemoteExecutor = new RemoteExecutor(mHttpClient, mResolver);
    }

    @Override
    protected void doSync(Intent intent) throws Exception {
        Log.d(TAG, "Start news sync");

        final Context context = this;

        final SharedPreferences settings = Prefs.get(context);
        final int localVersion = settings.getInt(DevoxxPrefs.NEWS_LOCAL_VERSION, VERSION_NONE);

        final long startLocal = System.currentTimeMillis();
        final boolean localParse = localVersion < VERSION_CURRENT;
        Log.d(TAG, "found localVersion=" + localVersion + " and VERSION_CURRENT=" + VERSION_CURRENT);
        if (localParse) {
            mLocalExecutor.execute(context, "cache-news.json", new NewsHandler());

            // Save local parsed version
            settings.edit().putInt(DevoxxPrefs.NEWS_LOCAL_VERSION, VERSION_CURRENT).commit();

            final ContentValues values = new ContentValues();
            values.put(News.NEWS_NEW, 0);
            getContentResolver().update(News.CONTENT_NEW_URI, values, null, null);
        }
        Log.d(TAG, "Local sync took " + (System.currentTimeMillis() - startLocal) + "ms");

        final CfpSyncManager syncManager = new CfpSyncManager(context);
        if (syncManager.shouldPerformRemoteSync(Intent.ACTION_SYNC.equals(intent.getAction()))) {
            Log.d(TAG, "Should perform remote sync");
            final long startRemote = System.currentTimeMillis();
            mRemoteExecutor.executeGet(NEWS_URL, new NewsHandler());
            Log.d(TAG, "Remote sync took " + (System.currentTimeMillis() - startRemote) + "ms");
        } else {
            Log.d(TAG, "Should not perform remote sync");
        }

        final NotifierManager notifierManager = new NotifierManager(this);
        notifierManager.notifyNewNewsItems();

        Log.d(TAG, "News sync finished");
    }

}