001/*
002 * Portions of this software was developed by employees of the National Institute
003 * of Standards and Technology (NIST), an agency of the Federal Government and is
004 * being made available as a public service. Pursuant to title 17 United States
005 * Code Section 105, works of NIST employees are not subject to copyright
006 * protection in the United States. This software may be subject to foreign
007 * copyright. Permission in the United States and in foreign countries, to the
008 * extent that NIST may hold copyright, to use, copy, modify, create derivative
009 * works, and distribute this software and its documentation without fee is hereby
010 * granted on a non-exclusive basis, provided that this notice and disclaimer
011 * of warranty appears in all copies.
012 *
013 * THE SOFTWARE IS PROVIDED 'AS IS' WITHOUT ANY WARRANTY OF ANY KIND, EITHER
014 * EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, ANY WARRANTY
015 * THAT THE SOFTWARE WILL CONFORM TO SPECIFICATIONS, ANY IMPLIED WARRANTIES OF
016 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND FREEDOM FROM
017 * INFRINGEMENT, AND ANY WARRANTY THAT THE DOCUMENTATION WILL CONFORM TO THE
018 * SOFTWARE, OR ANY WARRANTY THAT THE SOFTWARE WILL BE ERROR FREE.  IN NO EVENT
019 * SHALL NIST BE LIABLE FOR ANY DAMAGES, INCLUDING, BUT NOT LIMITED TO, DIRECT,
020 * INDIRECT, SPECIAL OR CONSEQUENTIAL DAMAGES, ARISING OUT OF, RESULTING FROM,
021 * OR IN ANY WAY CONNECTED WITH THIS SOFTWARE, WHETHER OR NOT BASED UPON WARRANTY,
022 * CONTRACT, TORT, OR OTHERWISE, WHETHER OR NOT INJURY WAS SUSTAINED BY PERSONS OR
023 * PROPERTY OR OTHERWISE, AND WHETHER OR NOT LOSS WAS SUSTAINED FROM, OR AROSE OUT
024 * OF THE RESULTS OF, OR USE OF, THE SOFTWARE OR SERVICES PROVIDED HEREUNDER.
025 */
026
027package gov.nist.secauto.metaschema.core.resource;
028
029import gov.nist.secauto.metaschema.core.model.IResourceLoader;
030import gov.nist.secauto.metaschema.core.model.IUriResolver;
031
032import java.net.URI;
033
034import edu.umd.cs.findbugs.annotations.NonNull;
035
036public class AbstractResourceLoader implements IResourceLoader {
037  /**
038   * An {@link IUriResolver} is not provided by default.
039   */
040  private IUriResolver uriResolver;
041
042  @Override
043  public IUriResolver getUriResolver() {
044    return uriResolver;
045  }
046
047  public void setUriResolver(@NonNull IUriResolver uriResolver) {
048    this.uriResolver = uriResolver;
049  }
050
051  /**
052   * Resolve the provided URI, producing a resolved URI, which may point to a
053   * different resource than the provided URI.
054   *
055   * @param uri
056   *          the URI to resolve
057   * @return the resulting URI
058   */
059  @NonNull
060  protected URI resolve(@NonNull URI uri) {
061    IUriResolver resolver = getUriResolver();
062    return resolver == null ? uri : resolver.resolve(uri);
063  }
064}