tillrohrmann commented on a change in pull request #9950:
[FLINK-14464][runtime] Introduce the AbstractUserClassPathJobGraphRetriever
URL: https://github.com/apache/flink/pull/9950#discussion_r341156074
##########
File path: flink-core/src/main/java/org/apache/flink/util/FileUtils.java
##########
@@ -525,6 +540,123 @@ public static Path expandDirectory(Path file, Path
targetDirectory) throws IOExc
return new Path(targetDirectory, rootDir);
}
+ /**
+ * List the {@code directory} recursively and return the files that
satisfy the {@code fileFilter}.
+ *
+ * @param directory the directory to be listed
+ * @param fileFilter a file filter
+ * @return a collection of {@code File}s
+ *
+ * @throws IOException if an I/O error occurs while listing the files
in the given directory
+ */
+ public static Collection<File> listFilesInPath(final File directory,
final Predicate<File> fileFilter) throws IOException {
+ checkNotNull(directory, "directory");
+ checkNotNull(fileFilter, "fileFilter");
+
+ if (!Files.exists(directory.toPath())) {
Review comment:
Given that we always convert `File` to `nio.file.Path`, I think we could
change the signature to accept `nio.file.Path` and return a collection of
`nio.file.Path`.
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