UpdateNotifier.java

/**
 * Copyright 2012-2013 Maciej Jaworski, Mariusz Kapcia, Paweł Kędzia, Mateusz Kubuszok
 *
 * <p>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</p> 
 * 
 * <p>http://www.apache.org/licenses/LICENSE-2.0</p>
 *
 * <p>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.</p>
 */
package com.autoupdater.client.installation.notifiers;

import com.autoupdater.client.installation.InstallationServiceMessage;
import com.autoupdater.client.models.EUpdateStatus;
import com.autoupdater.client.models.Update;
import com.autoupdater.client.utils.services.ObservableService;
import com.autoupdater.client.utils.services.notifier.AbstractNotifier;

/**
 * Notifies about specific update's change.
 * 
 * @see com.autoupdater.client.installation.services.InstallationService
 * @see com.autoupdater.client.installation.aggregated.services.AggregatedInstallationService
 */
public class UpdateNotifier extends
        AbstractNotifier<InstallationServiceMessage, EUpdateStatus, Update> {
    @Override
    public void update(ObservableService<EUpdateStatus> observable, EUpdateStatus message) {
        Update update = getAdditionalMessage(observable);
        hasChanged();
        notifyObservers(new InstallationServiceMessage((update != null ? update + ": " : "")
                + message));
    }
}