Example usage for org.apache.hadoop.hdfs DFSUtil bytes2String

Introduction

In this page you can find the example usage for org.apache.hadoop.hdfs DFSUtil bytes2String.

Prototype

public static String bytes2String(byte[] bytes) 

Source Link

Document

Converts a byte array to a string using UTF8 encoding.

Usage

From source file:io.hops.common.INodeResolver.java

License:Apache License

public INode next() throws UnresolvedPathException, StorageException, TransactionContextException {
    boolean lastComp = (count == components.length - 1);
    if (currentInode.isSymlink() && (!lastComp || (lastComp && resolveLink))) {
        final String symPath = INodeUtil.constructPath(components, 0, components.length);
        final String preceding = INodeUtil.constructPath(components, 0, count);
        final String remainder = INodeUtil.constructPath(components, count + 1, components.length);
        final String link = DFSUtil.bytes2String(components[count]);
        final String target = ((INodeSymlink) currentInode).getLinkValue();
        if (NameNode.stateChangeLog.isDebugEnabled()) {
            NameNode.stateChangeLog.debug(
                    "UnresolvedPathException " + " path: " + symPath + " preceding: " + preceding + " count: "
                            + count + " link: " + link + " target: " + target + " remainder: " + remainder);
        }//ww  w  .  jav a2  s.  c om
        throw new UnresolvedPathException(symPath, preceding, remainder, target);
    }

    if (!hasNext()) {
        throw new NoSuchElementException("Trying to read more components than available");
    }

    currentInode = INodeUtil.getNode(components[++count], currentInode.getId(), transactional);
    return currentInode;
}

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From source file:io.hops.common.INodeUtil.java

License:Apache License

public static String constructPath(byte[][] components, int start, int end) {
    StringBuilder buf = new StringBuilder();
    for (int i = start; i < end; i++) {
        buf.append(DFSUtil.bytes2String(components[i]));
        if (i < end - 1) {
            buf.append(Path.SEPARATOR);
        }//from w w  w . j ava2  s .com
    }
    return buf.toString();
}

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From source file:io.hops.common.INodeUtil.java

License:Apache License

public static INode getNode(byte[] name, int parentId, boolean transactional)
        throws StorageException, TransactionContextException {
    String nameString = DFSUtil.bytes2String(name);
    if (transactional) {
        return EntityManager.find(INode.Finder.ByNameAndParentId, nameString, parentId);
    } else {//from  w ww.j a  v  a 2  s.c  o m
        return findINodeWithNoTransaction(nameString, parentId);
    }
}

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

License:Apache License

@Override
public INode convertHDFStoDAL(org.apache.hadoop.hdfs.server.namenode.INode inode) throws StorageException {
    INode hopINode = null;//  ww  w .j  av a  2s.  com
    if (inode != null) {
        hopINode = new INode();
        hopINode.setModificationTime(inode.getModificationTime());
        hopINode.setAccessTime(inode.getAccessTime());
        hopINode.setName(inode.getLocalName());

        DataOutputBuffer permissionString = new DataOutputBuffer();
        try {
            inode.getPermissionStatus().write(permissionString);
        } catch (IOException e) {
            throw new StorageException(e);
        }

        hopINode.setPermission(permissionString.getData());
        hopINode.setParentId(inode.getParentId());
        hopINode.setId(inode.getId());

        if (inode instanceof INodeDirectory) {
            hopINode.setUnderConstruction(false);
            hopINode.setDirWithQuota(false);
        }
        if (inode instanceof INodeDirectoryWithQuota) {
            hopINode.setUnderConstruction(false);
            hopINode.setDirWithQuota(true);
        }
        if (inode instanceof INodeFile) {
            hopINode.setUnderConstruction(inode.isUnderConstruction() ? true : false);
            hopINode.setDirWithQuota(false);
            hopINode.setHeader(((INodeFile) inode).getHeader());
            if (inode instanceof INodeFileUnderConstruction) {
                hopINode.setClientName(((INodeFileUnderConstruction) inode).getClientName());
                hopINode.setClientMachine(((INodeFileUnderConstruction) inode).getClientMachine());
                hopINode.setClientNode(((INodeFileUnderConstruction) inode).getClientNode() == null ? null
                        : ((INodeFileUnderConstruction) inode).getClientNode().getXferAddr());
            }
            hopINode.setGenerationStamp(((INodeFile) inode).getGenerationStamp());
        }
        if (inode instanceof INodeSymlink) {
            hopINode.setUnderConstruction(false);
            hopINode.setDirWithQuota(false);

            String linkValue = DFSUtil.bytes2String(((INodeSymlink) inode).getSymlink());
            hopINode.setSymlink(linkValue);
        }
        hopINode.setSubtreeLocked(inode.isSubtreeLocked());
        hopINode.setSubtreeLockOwner(inode.getSubtreeLockOwner());
    }
    return hopINode;
}

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From source file:io.hops.transaction.lock.INodeLock.java

License:Apache License

private String buildPath(String path, int size) {
    StringBuilder builder = new StringBuilder();
    byte[][] components = INode.getPathComponents(path);

    for (int i = 0; i < Math.min(components.length, size); i++) {
        if (i == 0) {
            builder.append("/");
        } else {// ww  w  . j a  va 2s .  c  om
            if (i != 1) {
                builder.append("/");
            }
            builder.append(DFSUtil.bytes2String(components[i]));
        }
    }

    return builder.toString();
}

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