ReleaseLoader.java

/**
 * Copyright (C) 2013 Johannes Schnatterer
 *
 * See the NOTICE file distributed with this work for additional
 * information regarding copyright ownership.
 *
 * This file is part of nusic.
 *
 * nusic 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.
 *
 * nusic 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 nusic.  If not, see <http://www.gnu.org/licenses/>.
 */
package info.schnatterer.nusic.android.loaders;

import info.schnatterer.nusic.Constants.Loaders;
import info.schnatterer.nusic.core.ReleaseService;
import info.schnatterer.nusic.data.model.Release;

import java.util.List;

import javax.inject.Inject;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import android.content.Context;

/**
 * Creates an {@link android.content.AsyncTaskLoader} for {@link Release}s. The
 * method called in {@link #doLoadInBackground()} can be defined via
 * {@link #setLoaderId(int)}.
 * 
 * @author schnatterer
 *
 */
public class ReleaseLoader extends
        AbstractAsyncSqliteLoader<List<Release>, Release> {
    private static final Logger LOG = LoggerFactory
            .getLogger(ReleaseLoader.class);

    @Inject
    private ReleaseService releaseService;
    private int loaderId = Loaders.RELEASE_LOADER_ALL;

    @Inject
    public ReleaseLoader(Context context) {
        super(context);
    }

    @Override
    public List<Release> doLoadInBackground() throws Exception {
        switch (loaderId) {
        case Loaders.RELEASE_LOADER_ALL:
            return releaseService.findAllNotHidden();
        case Loaders.RELEASE_LOADER_JUST_ADDED:
            return releaseService.findJustCreated();
        case Loaders.RELEASE_LOADER_ANNOUNCED: {
            return releaseService.findAvailableToday(false);
        }
        case Loaders.RELEASE_LOADER_AVAILABLE: {
            return releaseService.findAvailableToday(true);
        }
        default:
            LOG.warn("Requested loader ID is not a defined release loader: "
                    + loaderId + ". Returning loader that loads all releases");
            return releaseService.findAllNotHidden();
        }
    }

    public void setLoaderId(int loaderId) {
        this.loaderId = loaderId;
    }
}