Example usage for org.apache.hadoop.hdfs.protocol SnapshottableDirectoryStatus getFullPath

Introduction

In this page you can find the example usage for org.apache.hadoop.hdfs.protocol SnapshottableDirectoryStatus getFullPath.

Prototype

public Path getFullPath() 

Source Link

Usage

From source file:backup.namenode.NameNodeBackupBlockCheckProcessor.java

License:Apache License

private ExternalExtendedBlockSort<Addresses> fetchBlocksFromNameNode(BackupReportWriter writer)
        throws Exception {
    writer.startBlockMetaDataFetchFromNameNode();
    Path sortDir = getLocalSort(NAMENODE_SORT);
    ExternalExtendedBlockSort<Addresses> nameNodeBlocks = new ExternalExtendedBlockSort<Addresses>(conf,
            sortDir, Addresses.class);

    Set<Path> pathSetToIgnore = getPathSetToIgnore();

    Path path = new Path("/");
    // Add normal files
    addExtendedBlocksFromNameNode(writer, nameNodeBlocks, path, pathSetToIgnore);
    // Add snapshot dirs
    SnapshottableDirectoryStatus[] snapshottableDirListing = fileSystem.getSnapshottableDirListing();
    if (snapshottableDirListing != null) {
        for (SnapshottableDirectoryStatus status : snapshottableDirListing) {
            addExtendedBlocksFromNameNode(writer, nameNodeBlocks, new Path(status.getFullPath(), SNAPSHOT),
                    pathSetToIgnore);//ww  w  . ja v  a  2  s.  com
        }
    }
    writer.completeBlockMetaDataFetchFromNameNode();
    return nameNodeBlocks;
}

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From source file:org.apache.falcon.extensions.mirroring.hdfsSnapshot.HdfsSnapshotMirroringExtension.java

License:Apache License

private static boolean isDirSnapshotable(DistributedFileSystem hdfs, Path path) throws FalconException {
    try {/*w  w  w. j a v a  2 s.  c  o  m*/
        LOG.debug("HDFS Snapshot extension validating if dir {} is snapshotable.", path.toString());
        SnapshottableDirectoryStatus[] snapshotableDirs = hdfs.getSnapshottableDirListing();
        if (snapshotableDirs != null && snapshotableDirs.length > 0) {
            for (SnapshottableDirectoryStatus dir : snapshotableDirs) {
                if (dir.getFullPath().toString().equals(path.toString())) {
                    return true;
                }
            }
        }
        return false;
    } catch (IOException e) {
        LOG.error("Unable to verify if dir {} is snapshot-able. {}", path.toString(), e.getMessage());
        throw new FalconException("Unable to verify if dir " + path.toString() + " is snapshot-able", e);
    }
}

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