Example usage for org.apache.hadoop.fs LocalFileSystem pathToFile

Introduction

In this page you can find the example usage for org.apache.hadoop.fs LocalFileSystem pathToFile.

Prototype

public File pathToFile(Path path) 

Source Link

Document

Convert a path to a File.

Usage

From source file:gobblin.util.HadoopUtils.java

License:Apache License

/**
 * Renames a src {@link Path} on fs {@link FileSystem} to a dst {@link Path}. If fs is a {@link LocalFileSystem} and
 * src is a directory then {@link File#renameTo} is called directly to avoid a directory rename race condition where
 * {@link org.apache.hadoop.fs.RawLocalFileSystem#rename} copies the conflicting src directory into dst resulting in
 * an extra nested level, such as /root/a/b/c/e/e where e is repeated.
 *
 * @param fs the {@link FileSystem} where the src {@link Path} exists
 * @param src the source {@link Path} which will be renamed
 * @param dst the {@link Path} to rename to
 * @return true if rename succeeded, false if rename failed.
 * @throws IOException if rename failed for reasons other than target exists.
 *//*w w w .j a va2 s  . c  om*/
public static boolean renamePathHandleLocalFSRace(FileSystem fs, Path src, Path dst) throws IOException {
    if (DecoratorUtils.resolveUnderlyingObject(fs) instanceof LocalFileSystem && fs.isDirectory(src)) {
        LocalFileSystem localFs = (LocalFileSystem) DecoratorUtils.resolveUnderlyingObject(fs);
        File srcFile = localFs.pathToFile(src);
        File dstFile = localFs.pathToFile(dst);

        return srcFile.renameTo(dstFile);
    } else {
        return fs.rename(src, dst);
    }
}

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