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The core artifact of AutomataLib. This library contains concrete implementations for many of the automaton model interfaces defined in the API artifact, as well as abstract base classes that facilitate implementing new automaton model classes. Note that concrete algorithms (traversal, reachability analysis etc.) are not in the scope of this artifact.

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/* Copyright (C) 2015 TU Dortmund
 * This file is part of AutomataLib, http://www.automatalib.net/.
 * 
 * AutomataLib is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License version 3.0 as published by the Free Software Foundation.
 * 
 * AutomataLib 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
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with AutomataLib; if not, see
 * http://www.gnu.de/documents/lgpl.en.html.
 */
package net.automatalib.visualization;

import java.util.HashMap;
import java.util.Map;
import java.util.ServiceLoader;

public class VPManager {
	
	private final Map providers = new HashMap<>();
	private VisualizationProvider bestProvider = new DummyVP();
	
	public void load() {
		providers.clear();
		ServiceLoader loader = ServiceLoader.load(VisualizationProvider.class);
		
		bestProvider = new DummyVP();
		for (VisualizationProvider vp : loader) {
			registerProvider(vp);
		}
	}
	
	public void registerProvider(VisualizationProvider vp) {
		if (!vp.checkUsable()) {
			return;
		}
		providers.put(vp.getId(), vp);
		
		if (vp.getPriority() > bestProvider.getPriority()) {
			bestProvider = vp;
		}
	}
	
	public VisualizationProvider getBestProvider() {
		return bestProvider;
	}
	
	public VisualizationProvider getProviderByName(String name) {
		return providers.get(name);
	}
	
}