/**
    * Portions of this software was developed by employees of the National Institute
    * of Standards and Technology (NIST), an agency of the Federal Government and is
    * being made available as a public service. Pursuant to title 17 United States
    * Code Section 105, works of NIST employees are not subject to copyright
    * protection in the United States. This software may be subject to foreign
    * copyright. Permission in the United States and in foreign countries, to the
    * extent that NIST may hold copyright, to use, copy, modify, create derivative
    * works, and distribute this software and its documentation without fee is hereby
   * granted on a non-exclusive basis, provided that this notice and disclaimer
   * of warranty appears in all copies.
   *
   * THE SOFTWARE IS PROVIDED 'AS IS' WITHOUT ANY WARRANTY OF ANY KIND, EITHER
   * EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, ANY WARRANTY
   * THAT THE SOFTWARE WILL CONFORM TO SPECIFICATIONS, ANY IMPLIED WARRANTIES OF
   * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND FREEDOM FROM
   * INFRINGEMENT, AND ANY WARRANTY THAT THE DOCUMENTATION WILL CONFORM TO THE
   * SOFTWARE, OR ANY WARRANTY THAT THE SOFTWARE WILL BE ERROR FREE.  IN NO EVENT
   * SHALL NIST BE LIABLE FOR ANY DAMAGES, INCLUDING, BUT NOT LIMITED TO, DIRECT,
   * INDIRECT, SPECIAL OR CONSEQUENTIAL DAMAGES, ARISING OUT OF, RESULTING FROM,
   * OR IN ANY WAY CONNECTED WITH THIS SOFTWARE, WHETHER OR NOT BASED UPON WARRANTY,
   * CONTRACT, TORT, OR OTHERWISE, WHETHER OR NOT INJURY WAS SUSTAINED BY PERSONS OR
   * PROPERTY OR OTHERWISE, AND WHETHER OR NOT LOSS WAS SUSTAINED FROM, OR AROSE OUT
   * OF THE RESULTS OF, OR USE OF, THE SOFTWARE OR SERVICES PROVIDED HEREUNDER.
   */
  
  package gov.nist.secauto.swid.plugin.entry.archive;
  
  import gov.nist.secauto.swid.builder.resource.PathRelativizer;
  import gov.nist.secauto.swid.plugin.entry.FileEntry;
  
  import org.apache.maven.artifact.Artifact;
  import org.codehaus.plexus.archiver.ArchiveEntry;
  import org.codehaus.plexus.components.io.fileselectors.FileInfo;
  import org.codehaus.plexus.components.io.resources.PlexusIoFileResource;
  import org.codehaus.plexus.components.io.resources.PlexusIoResource;
  
  import java.io.File;
  import java.io.IOException;
  import java.io.InputStream;
  import java.nio.file.Path;
  import java.util.List;
  import java.util.Objects;
  
  public class ArchiveFileEntry implements FileEntry {
  
    private final ArchiveEntry archiveEntry;
    private final Artifact artifact;
  
    /**
     * Construct a new file entry based on archive data.
     * 
     * @param archiveEntry
     *          the archive metadata
     * @param artifact
     *          optional artifact metadata
     */
    public ArchiveFileEntry(ArchiveEntry archiveEntry, Artifact artifact) {
      Objects.requireNonNull(archiveEntry, "archiveEntry");
      this.archiveEntry = archiveEntry;
      this.artifact = artifact;
    }
  
    @Override
    public Long getSize() {
      PlexusIoResource resource = archiveEntry.getResource();
  
      File file = null;
      if (resource instanceof PlexusIoFileResource) {
        file = ((PlexusIoFileResource) resource).getFile();
      }
  
      return (file == null) ? null : file.length();
    }
  
    @Override
    public InputStream getInputStream() throws IOException {
      return archiveEntry.getInputStream();
    }
  
    @Override
    public String getVersion() {
      String retval = null;
      if (artifact != null) {
        retval = artifact.getVersion();
      }
      return retval;
    }
  
    @Override
    public Path getPath() {
      PlexusIoResource resource = archiveEntry.getResource();
  
      File file = null;
      if (resource instanceof PlexusIoFileResource) {
        file = ((PlexusIoFileResource) resource).getFile();
      }
  
      return (file == null) ? null : file.toPath();
   }
 
   @Override
   public String getOutputRelativePath() {
     return archiveEntry.getName();
   }
 
   @Override
   public List<String> getRelativePathSegements(String swidTagPath) {
     return PathRelativizer.relativize(swidTagPath, getOutputRelativePath());
   }
 
   @Override
   public FileInfo asFileInfo() {
     PlexusIoResource resource = archiveEntry.getResource();
     return resource;
   }
 
 }