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.model.validation;
028
029import gov.nist.secauto.metaschema.core.model.constraint.IConstraint.Level;
030import gov.nist.secauto.metaschema.core.util.CollectionUtil;
031import gov.nist.secauto.metaschema.core.util.ObjectUtils;
032
033import java.util.LinkedList;
034import java.util.List;
035import java.util.concurrent.atomic.AtomicReference;
036import java.util.stream.Stream;
037
038import edu.umd.cs.findbugs.annotations.NonNull;
039
040public final class AggregateValidationResult implements IValidationResult {
041  @NonNull
042  private final List<IValidationFinding> findings;
043  @NonNull
044  private final Level highestSeverity;
045
046  private AggregateValidationResult(@NonNull List<IValidationFinding> findings, @NonNull Level highestSeverity) {
047    this.findings = CollectionUtil.unmodifiableList(findings);
048    this.highestSeverity = highestSeverity;
049  }
050
051  public static IValidationResult aggregate(@NonNull IValidationResult result) {
052    return result;
053  }
054
055  public static IValidationResult aggregate(@NonNull IValidationResult... results) {
056    Stream<? extends IValidationFinding> stream = Stream.empty();
057    for (IValidationResult result : results) {
058      stream = Stream.concat(stream, result.getFindings().stream());
059    }
060    assert stream != null;
061    return aggregate(stream);
062  }
063
064  public static IValidationResult aggregate(@NonNull Stream<? extends IValidationFinding> findingStream) {
065    AtomicReference<Level> highestSeverity = new AtomicReference<>(Level.INFORMATIONAL);
066
067    List<IValidationFinding> findings = new LinkedList<>();
068    findingStream.sequential().forEachOrdered(finding -> {
069      findings.add(finding);
070      Level severity = finding.getSeverity();
071      if (highestSeverity.get().ordinal() < severity.ordinal()) {
072        highestSeverity.set(severity);
073      }
074    });
075
076    return new AggregateValidationResult(findings, ObjectUtils.notNull(highestSeverity.get()));
077  }
078
079  @Override
080  public Level getHighestSeverity() {
081    return highestSeverity;
082  }
083
084  @Override
085  public List<? extends IValidationFinding> getFindings() {
086    return findings;
087  }
088
089}