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.oscal.lib.model.metadata;
028
029import gov.nist.secauto.metaschema.model.common.datatype.markup.MarkupLine;
030import gov.nist.secauto.metaschema.model.common.util.ObjectUtils;
031import gov.nist.secauto.oscal.lib.model.Link;
032
033import java.net.URI;
034import java.util.LinkedList;
035import java.util.List;
036import java.util.stream.Collectors;
037import java.util.stream.Stream;
038
039import edu.umd.cs.findbugs.annotations.NonNull;
040
041public abstract class AbstractLink implements ILink {
042
043  public static List<Link> merge(@NonNull List<Link> original, @NonNull List<Link> additional) {
044    return Stream.concat(original.stream(), additional.stream())
045        .collect(Collectors.toCollection(LinkedList::new));
046  }
047
048  @NonNull
049  public static Builder builder(@NonNull URI href) {
050    return new Builder(href);
051  }
052
053  public static class Builder {
054    @NonNull
055    private final URI href;
056    private String rel;
057    private String mediaType;
058    private MarkupLine text;
059
060    public Builder(@NonNull URI href) {
061      this.href = ObjectUtils.requireNonNull(href, "href");
062    }
063
064    @NonNull
065    public Builder relation(@NonNull String relation) {
066      this.rel = ObjectUtils.requireNonNull(relation, "rel");
067      return this;
068    }
069
070    @NonNull
071    public Builder value(@NonNull String mediaType) {
072      this.mediaType = ObjectUtils.requireNonNull(mediaType, "mediaType");
073      return this;
074    }
075
076    @NonNull
077    public Builder clazz(@NonNull MarkupLine text) {
078      this.text = ObjectUtils.requireNonNull(text, "text");
079      return this;
080    }
081
082    @NonNull
083    public Link build() {
084      Link retval = new Link();
085      retval.setHref(href);
086      if (rel != null) {
087        retval.setRel(rel);
088      }
089      if (mediaType != null) {
090        retval.setMediaType(mediaType);
091      }
092      if (text != null) {
093        retval.setText(text);
094      }
095
096      return retval;
097    }
098  }
099}