org.robokind.api.animation.utils.LibraryRemoteAnimationAdder Maven / Gradle / Ivy

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/*
 * Copyright 2011 Hanson Robokind LLC.
 *
 * 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 org.robokind.api.animation.utils;

import java.util.logging.Logger;
import org.osgi.framework.BundleContext;
import org.robokind.api.animation.Animation;
import org.robokind.api.animation.library.AnimationLibrary;
import org.robokind.api.animation.protocol.AnimationEvent;
import org.robokind.api.common.osgi.SingleServiceListener;
import org.jflux.api.core.Listener;

/**
 *
 * @author Matthew Stevenson 
 */
public class LibraryRemoteAnimationAdder implements Listener{
    private final static Logger theLogger = 
            Logger.getLogger(LibraryRemoteAnimationAdder.class.getName());
    private SingleServiceListener myLibraryTracker;
    
    public LibraryRemoteAnimationAdder(
            BundleContext context, String libraryFilter){
        if(context == null){
            throw new NullPointerException();
        }
        myLibraryTracker = new SingleServiceListener(
                AnimationLibrary.class, context, libraryFilter);
        myLibraryTracker.start();
    }

    @Override
    public void handleEvent(AnimationEvent event) {
        if(event == null){
            return;
        }
        Animation anim = event.getAnimation();
        if(anim == null){
            return;
        }
        AnimationLibrary lib = myLibraryTracker.getService();
        if(lib == null){
            return;
        }
        lib.add(anim);
        myLibraryTracker.releaseService();
    }
}