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| author | Benjamin J. Culkin <bjculkin@mix.wvu.edu> | 2017-10-08 22:39:59 -0300 |
|---|---|---|
| committer | Benjamin J. Culkin <bjculkin@mix.wvu.edu> | 2017-10-08 22:39:59 -0300 |
| commit | c82e3b3b2de0633317ec8fc85925e91422820597 (patch) | |
| tree | 96567416ce23c5ce85601f9cedc3a94bb1c55cba /base/src/main/java/bjc/utils/funcutils/FunctionalFileVisitor.java | |
| parent | b3ac1c8690c3e14c879913e5dcc03a5f5e14876e (diff) | |
Start splitting into maven modules
Diffstat (limited to 'base/src/main/java/bjc/utils/funcutils/FunctionalFileVisitor.java')
| -rw-r--r-- | base/src/main/java/bjc/utils/funcutils/FunctionalFileVisitor.java | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/base/src/main/java/bjc/utils/funcutils/FunctionalFileVisitor.java b/base/src/main/java/bjc/utils/funcutils/FunctionalFileVisitor.java new file mode 100644 index 0000000..db6c43b --- /dev/null +++ b/base/src/main/java/bjc/utils/funcutils/FunctionalFileVisitor.java @@ -0,0 +1,36 @@ +package bjc.utils.funcutils; + +import java.io.IOException; +import java.nio.file.FileVisitResult; +import java.nio.file.Path; +import java.nio.file.SimpleFileVisitor; +import java.nio.file.attribute.BasicFileAttributes; +import java.util.function.BiPredicate; + +/* + * Functional implementation of a file visitor. + */ +final class FunctionalFileVisitor extends SimpleFileVisitor<Path> { + private final BiPredicate<Path, BasicFileAttributes> predicate; + private final BiPredicate<Path, BasicFileAttributes> action; + + public FunctionalFileVisitor(final BiPredicate<Path, BasicFileAttributes> predicate, + final BiPredicate<Path, BasicFileAttributes> action) { + this.predicate = predicate; + this.action = action; + } + + @Override + public FileVisitResult preVisitDirectory(final Path dir, final BasicFileAttributes attrs) throws IOException { + if (predicate.test(dir, attrs)) return FileVisitResult.CONTINUE; + + return FileVisitResult.SKIP_SUBTREE; + } + + @Override + public FileVisitResult visitFile(final Path file, final BasicFileAttributes attrs) throws IOException { + if (action.test(file, attrs)) return FileVisitResult.CONTINUE; + + return FileVisitResult.TERMINATE; + } +} |
