org.geomajas.internal.layer.feature.FeatureModelRegistry Maven / Gradle / Ivy

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/*
 * This file is part of Geomajas, a component framework for building
 * rich Internet applications (RIA) with sophisticated capabilities for the
 * display, analysis and management of geographic information.
 * It is a building block that allows developers to add maps
 * and other geographic data capabilities to their web applications.
 *
 * Copyright 2008-2010 Geosparc, http://www.geosparc.com, Belgium
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see .
 */
package org.geomajas.internal.layer.feature;

import org.geomajas.layer.feature.FeatureModel;

import java.util.ArrayList;
import java.util.List;

/**
 * Feature model registry.
 *
 * @author Pieter De Graef
 */
public class FeatureModelRegistry {

	private static FeatureModelRegistry INSTANCE;

	private List featureModels = new ArrayList();

	public static FeatureModelRegistry getRegistry() {
		if (INSTANCE == null) {
			INSTANCE = new FeatureModelRegistry();
		}
		return INSTANCE;
	}

	public FeatureModel lookup(Object feature) {
		for (FeatureModel fm : featureModels) {
			if (fm.canHandle(feature)) {
				return fm;
			}
		}

		return null;
	}

	public void register(FeatureModel featureModel) {
		if (!featureModels.contains(featureModel)) {
			featureModels.add(featureModel);
		}
	}
}