Example usage for org.apache.hadoop.fs CommonConfigurationKeysPublic FS_TRASH_INTERVAL

Introduction

In this page you can find the example usage for org.apache.hadoop.fs CommonConfigurationKeysPublic FS_TRASH_INTERVAL_KEY.

Prototype

String FS_TRASH_INTERVAL_KEY

To view the source code for org.apache.hadoop.fs CommonConfigurationKeysPublic FS_TRASH_INTERVAL_KEY.

Click Source Link

Usage

From source file:com.ruizhan.hadoop.hdfs.Trash.java

License:Apache License

/**
 * In case of the symlinks or mount points, one has to move the appropriate
 * trashbin in the actual volume of the path p being deleted.
 *
 * Hence we get the file system of the fully-qualified resolved-path and
 * then move the path p to the trashbin in that volume,
 * @param fs - the filesystem of path p/*from w  w  w. j a v  a 2s.c o  m*/
 * @param p - the  path being deleted - to be moved to trasg
 * @param conf - configuration
 * @return false if the item is already in the trash or trash is disabled
 * @throws IOException on error
 */
public static boolean moveToAppropriateTrash(FileSystem fs, Path p, Configuration conf) throws IOException {
    Path fullyResolvedPath = fs.resolvePath(p);
    FileSystem fullyResolvedFs = FileSystem.get(fullyResolvedPath.toUri(), conf);
    // If the trash interval is configured server side then clobber this
    // configuration so that we always respect the server configuration.
    try {
        long trashInterval = fullyResolvedFs.getServerDefaults(fullyResolvedPath).getTrashInterval();
        if (0 != trashInterval) {
            Configuration confCopy = new Configuration(conf);
            confCopy.setLong(CommonConfigurationKeysPublic.FS_TRASH_INTERVAL_KEY, trashInterval);
            conf = confCopy;
        }
    } catch (Exception e) {
        // If we can not determine that trash is enabled server side then
        // bail rather than potentially deleting a file when trash is enabled.
        throw new IOException("Failed to get server trash configuration", e);
    }
    Trash trash = new Trash(fullyResolvedFs, conf);
    boolean success = trash.moveToTrash(fullyResolvedPath);
    if (success) {
        System.out.println("Moved: '" + p + "' to trash at: " + trash.getCurrentTrashDir());
    }
    return success;
}

Example usage for org.apache.hadoop.fs CommonConfigurationKeysPublic FS_TRASH_INTERVAL_KEY

Introduction

Prototype

Usage