How to use

FileUtils$FileCopyResult

in

org.apache.druid.java.util.common

Assert.assertEquals((long) (expected.length * 3), CompressionUtils.gunzip(inputStreamFactory, testFile).size());

/**
 * Copy input byte source to outFile. If outFile exists, it is attempted to be deleted.
 *
 * @param byteSource  Supplier for an input stream that is to be copied. The resulting stream is closed each iteration
 * @param outFile     Where the file should be written to.
 * @param shouldRetry Predicate indicating if an error is recoverable and should be retried.
 * @param maxAttempts The maximum number of assumed recoverable attempts to try before completely failing.
 *
 * @throws RuntimeException wrapping the inner exception on failure.
 */
public static FileCopyResult retryCopy(
  final ByteSource byteSource,
  final File outFile,
  final Predicate<Throwable> shouldRetry,
  final int maxAttempts
)
{
 try {
  StreamUtils.retryCopy(
    byteSource,
    Files.asByteSink(outFile),
    shouldRetry,
    maxAttempts
  );
  return new FileCopyResult(outFile);
 }
 catch (Exception e) {
  throw Throwables.propagate(e);
 }
}

  final FileUtils.FileCopyResult result = new FileUtils.FileCopyResult();
  while (children.hasNext()) {
   final LocatedFileStatus child = children.next();
     NativeIO.chunkedCopy(in, outFile);
    result.addFile(outFile);
    result.size(),
    path.toString(),
    outDir.getAbsolutePath()
result.size(),
path.toString(),
outDir.getAbsolutePath()
result.size(),
path.toString(),
outFile.getAbsolutePath()

 @Override
 public LoadSpecResult loadSegment(File outDir) throws SegmentLoadingException
 {
  return new LoadSpecResult(puller.getSegmentFiles(key, outDir).size());
 }
}

  false
);
LOG.info("Loaded %d bytes from [%s] to [%s]", result.size(), path, outDir.getAbsolutePath());
return result;

  false
);
log.info("Loaded %d bytes from [%s] to [%s]", result.size(), path, outDir.getAbsolutePath());
return result;

);
log.info("Loaded %d bytes from [%s] to [%s]", result.size(), actualBlobPath, outDir.getAbsolutePath());
return result;

  false
);
log.info("Loaded %d bytes from [%s] to [%s]", result.size(), s3Coords.toString(), outDir.getAbsolutePath());
return result;
log.info("Loaded %d bytes from [%s] to [%s]", result.size(), s3Coords.toString(), outFile.getAbsolutePath());
return result;

      .call();
   return new FileUtils.FileCopyResult(tmpFile);
  },
  Predicates.alwaysTrue(),
log.info(
  "Pull of file[%s] completed in %,d millis (%s bytes)", key, System.currentTimeMillis() - startTime,
  result.size()
);
return result;

if (sourceFile.equals(dir)) {
 log.info("Asked to load [%s] into itself, done!", dir);
 return new FileUtils.FileCopyResult(sourceFile);
final FileUtils.FileCopyResult result = new FileUtils.FileCopyResult(sourceFile);
for (final File oldFile : files) {
 if (oldFile.isDirectory()) {
 result.addFiles(
   FileUtils.retryCopy(
     Files.asByteSource(oldFile),
     shouldRetryPredicate(),
     DEFAULT_RETRY_COUNT
   ).getFiles()
 );
  result.size(),
  sourceFile.getAbsolutePath(),
  dir.getAbsolutePath()
 log.info(
   "Unzipped %d bytes from [%s] to [%s]",
   result.size(),
   sourceFile.getAbsolutePath(),
   dir.getAbsolutePath()
log.info(
  "Gunzipped %d bytes from [%s] to [%s]",

/**
 * Unzip from the input stream to the output directory, using the entry's file name as the file name in the output directory.
 * The behavior of directories in the input stream's zip is undefined.
 * If possible, it is recommended to use unzip(ByteStream, File) instead
 *
 * @param in     The input stream of the zip data. This stream is closed
 * @param outDir The directory to copy the unzipped data to
 *
 * @return The FileUtils.FileCopyResult containing information on all the files which were written
 *
 * @throws IOException
 */
public static FileUtils.FileCopyResult unzip(InputStream in, File outDir) throws IOException
{
 try (final ZipInputStream zipIn = new ZipInputStream(in)) {
  final FileUtils.FileCopyResult result = new FileUtils.FileCopyResult();
  ZipEntry entry;
  while ((entry = zipIn.getNextEntry()) != null) {
   final File file = new File(outDir, entry.getName());
   validateZipOutputFile("", file, outDir);
   NativeIO.chunkedCopy(zipIn, file);
   result.addFile(file);
   zipIn.closeEntry();
  }
  return result;
 }
}

 public void addFile(File file)
 {
  this.addFiles(ImmutableList.of(file));
 }
}

/**
 * Unzips the input stream via a gzip filter. use gunzip(ByteSource, File, Predicate) if possible
 *
 * @param in      The input stream to run through the gunzip filter. This stream is closed
 * @param outFile The file to output to
 *
 * @throws IOException
 */
public static FileUtils.FileCopyResult gunzip(InputStream in, File outFile) throws IOException
{
 try (GZIPInputStream gzipInputStream = gzipInputStream(in)) {
  NativeIO.chunkedCopy(gzipInputStream, outFile);
  return new FileUtils.FileCopyResult(outFile);
 }
}

 @Override
 public LoadSpecResult loadSegment(final File outDir) throws SegmentLoadingException
 {
  return new LoadSpecResult(puller.getSegmentFiles(path.toFile(), outDir).size());
 }
}

/**
 * Gzips the input file to the output
 *
 * @param inFile      The file to gzip
 * @param outFile     A target file to copy the uncompressed contents of inFile to
 * @param shouldRetry Predicate on a potential throwable to determine if the copy should be attempted again.
 *
 * @return The result of the file copy
 *
 * @throws IOException
 */
public static FileUtils.FileCopyResult gzip(final File inFile, final File outFile, Predicate<Throwable> shouldRetry)
{
 gzip(Files.asByteSource(inFile), Files.asByteSink(outFile), shouldRetry);
 return new FileUtils.FileCopyResult(outFile);
}

@Override
public LoadSpecResult loadSegment(File outDir) throws SegmentLoadingException
{
 return new LoadSpecResult(puller.getSegmentFiles(new S3DataSegmentPuller.S3Coords(bucket, key), outDir).size());
}

public FileCopyResult(Collection<File> files)
{
 this.addSizedFiles(files);
}

public FileCopyResult(Collection<File> files)
{
 this.addSizedFiles(files);
}

public void addFiles(Collection<File> files)
{
 this.addSizedFiles(files);
}

public void addFiles(Collection<File> files)
{
 this.addSizedFiles(files);
}