org.geotools.styling.ResourceLocator Maven / Gradle / Ivy

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/*
 *    GeoTools - The Open Source Java GIS Toolkit
 *    http://geotools.org
 *
 *    (C) 2002-2008, Open Source Geospatial Foundation (OSGeo)
 *
 *    This library is free software; you can redistribute it and/or
 *    modify it under the terms of the GNU Lesser General Public
 *    License as published by the Free Software Foundation;
 *    version 2.1 of the License.
 *
 *    This library 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.
 */
package org.geotools.styling;

import java.net.URL;

/**
 * Provides a hook to locate online resources in {@link ExternalGraphic} instances. To be used by
 * parser implementers.
 */
public interface ResourceLocator {

    /**
     * Locate the specified resource.
     *
     * @param uri uri of the resource
     * @return the fully resolved URL of the resource or null, if the resource cannot be located.
     */
    URL locateResource(String uri);
}