org.robokind.api.motion.blending.OSGiFrameSourceTracker Maven / Gradle / Ivy
/*
* Copyright (c) 2011 Hanson Robokind LLC. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are
* permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this list of
* conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice, this list
* of conditions and the following disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY HANSON ROBOKIND LLC "AS IS" AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL HANSON ROBOKIND LLC OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* The views and conclusions contained in the software and documentation are those of the
* authors and should not be interpreted as representing official policies, either expressed
* or implied, of Hanson Robokind LLC.
*/
package org.robokind.api.motion.blending;
import java.util.List;
import org.jflux.impl.services.rk.osgi.ClassTracker;
import org.osgi.framework.BundleContext;
/**
* FrameSourceTracker for tracking FrameSources registered to the OSGi registry.
*
* @author Matthew Stevenson
*/
public class OSGiFrameSourceTracker implements FrameSourceTracker{
private ClassTracker myTracker;
/**
* Creates a new OSGiFrameSourceTracker.
*/
public OSGiFrameSourceTracker(){
myTracker = new ClassTracker(FrameSource.class.getName());
}
/**
* Creates a new OSGiFrameSourceTracker which tracks services registered
* under the given class name.
* @param className fully qualified name of the FrameSource class to track
*/
public OSGiFrameSourceTracker(String className){
myTracker = new ClassTracker(className);
}
/**
* Initializes the tracking to begin tracking FrameSources.
* @param context BundleContext to use for tracking.
* @param filter FrameSource service property filter string
* @return true if successful
*/
public boolean init(BundleContext context, String filter){
myTracker.setContext(context);
myTracker.setFilter(filter);
return myTracker.init();
}
@Override
public List getSources() {
if(myTracker == null){
return null;
}
return myTracker.getServices();
}
}
© 2015 - 2025 Weber Informatics LLC | Privacy Policy