Example usage for org.apache.hadoop.hdfs.protocol Block METADATA_EXTENSION

Introduction

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

Prototype

String METADATA_EXTENSION

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Usage

From source file:com.mellanox.r4h.MiniDFSCluster.java

License:Apache License

/**
 * Get the latest metadata file correpsonding to a block
 * // ww  w. j  a v a2  s.c  o m
 * @param storageDir
 *            storage directory
 * @param blk
 *            the block
 * @return metadata file corresponding to the block
 */
public static File getBlockMetadataFile(File storageDir, ExtendedBlock blk) {
    return new File(
            DatanodeUtil.idToBlockDir(getFinalizedDir(storageDir, blk.getBlockPoolId()), blk.getBlockId()),
            blk.getBlockName() + "_" + blk.getGenerationStamp() + Block.METADATA_EXTENSION);
}

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From source file:com.mellanox.r4h.MiniDFSCluster.java

License:Apache License

/**
 * Return all block metadata files in given directory (recursive search)
 *//*from w  w w .j  a  v  a 2  s .c o  m*/
public static List<File> getAllBlockMetadataFiles(File storageDir) {
    List<File> results = new ArrayList<File>();
    File[] files = storageDir.listFiles();
    if (files == null) {
        return null;
    }
    for (File f : files) {
        if (f.getName().startsWith("blk_") && f.getName().endsWith(Block.METADATA_EXTENSION)) {
            results.add(f);
        } else if (f.isDirectory()) {
            List<File> subdirResults = getAllBlockMetadataFiles(f);
            if (subdirResults != null) {
                results.addAll(subdirResults);
            }
        }
    }
    return results;
}

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