Example usage for org.apache.hadoop.fs.permission PermissionStatus read

Introduction

In this page you can find the example usage for org.apache.hadoop.fs.permission PermissionStatus read.

Prototype

public static PermissionStatus read(DataInput in) throws IOException 

Source Link

Document

Create and initialize a PermissionStatus from DataInput .

Usage

From source file:io.hops.metadata.adaptor.INodeDALAdaptor.java

License:Apache License

@Override
public org.apache.hadoop.hdfs.server.namenode.INode convertDALtoHDFS(INode hopINode) throws StorageException {
    org.apache.hadoop.hdfs.server.namenode.INode inode = null;
    if (hopINode != null) {
        DataInputBuffer buffer = new DataInputBuffer();
        buffer.reset(hopINode.getPermission(), hopINode.getPermission().length);
        PermissionStatus ps = null;/* w w w .jav a  2 s  . c o m*/
        try {
            ps = PermissionStatus.read(buffer);
        } catch (IOException e) {
            throw new StorageException(e);
        }

        if (hopINode.isDir()) {
            if (hopINode.isDirWithQuota()) {
                inode = new INodeDirectoryWithQuota(hopINode.getName(), ps);
            } else {
                String iname = (hopINode.getName().length() == 0) ? INodeDirectory.ROOT_NAME
                        : hopINode.getName();
                inode = new INodeDirectory(iname, ps);
            }

            inode.setAccessTimeNoPersistance(hopINode.getAccessTime());
            inode.setModificationTimeNoPersistance(hopINode.getModificationTime());
        } else if (hopINode.getSymlink() != null) {
            inode = new INodeSymlink(hopINode.getSymlink(), hopINode.getModificationTime(),
                    hopINode.getAccessTime(), ps);
        } else {
            if (hopINode.isUnderConstruction()) {
                DatanodeID dnID = (hopINode.getClientNode() == null || hopINode.getClientNode().isEmpty())
                        ? null
                        : new DatanodeID(hopINode.getClientNode());

                inode = new INodeFileUnderConstruction(ps, INodeFile.getBlockReplication(hopINode.getHeader()),
                        INodeFile.getPreferredBlockSize(hopINode.getHeader()), hopINode.getModificationTime(),
                        hopINode.getClientName(), hopINode.getClientMachine(), dnID);

                inode.setAccessTimeNoPersistance(hopINode.getAccessTime());
            } else {
                inode = new INodeFile(ps, hopINode.getHeader(), hopINode.getModificationTime(),
                        hopINode.getAccessTime());
            }
            ((INodeFile) inode).setGenerationStampNoPersistence(hopINode.getGenerationStamp());
        }
        inode.setIdNoPersistance(hopINode.getId());
        inode.setLocalNameNoPersistance(hopINode.getName());
        inode.setParentIdNoPersistance(hopINode.getParentId());
        inode.setSubtreeLocked(hopINode.isSubtreeLocked());
        inode.setSubtreeLockOwner(hopINode.getSubtreeLockOwner());
    }
    return inode;
}

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