Example usage for org.apache.hadoop.fs FileSystem modifyAclEntries

Introduction

In this page you can find the example usage for org.apache.hadoop.fs FileSystem modifyAclEntries.

Prototype

public void modifyAclEntries(Path path, List<AclEntry> aclSpec) throws IOException 

Source Link

Document

Modifies ACL entries of files and directories.

Usage

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

License:Apache License

/**
 * {@inheritDoc}/*from ww w  .  j  a  va 2 s  . c  o  m*/
 */
@Override
public void modifyAclEntries(Path path, final List<AclEntry> aclSpec) throws IOException {
    Path absF = fixRelativePart(path);
    new FileSystemLinkResolver<Void>() {
        @Override
        public Void doCall(final Path p) throws IOException {
            dfs.modifyAclEntries(getPathName(p), aclSpec);
            return null;
        }

        @Override
        public Void next(final FileSystem fs, final Path p) throws IOException {
            fs.modifyAclEntries(p, aclSpec);
            return null;
        }
    }.resolve(this, absF);
}

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From source file:com.thinkbiganalytics.datalake.authorization.hdfs.HDFSUtil.java

License:Apache License

/**
 * @param fileSystem : HDFS FileSystem Object
 * @param path       : HDFS Path/*from w w  w. j  av  a 2  s  .  c o  m*/
 * @param aclEntry   : ACL for HDFS Path
 */
public void applyAcl(FileSystem fileSystem, Path path, AclEntry aclEntry) throws IOException {
    try {
        fileSystem.modifyAclEntries(path, Lists.newArrayList(aclEntry));
    } catch (IOException e) {
        log.error("Unable to apply HDFS Policy for " + path.toString() + " " + e.getMessage());
        throw new IOException(e);
    }
}

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From source file:org.trafodion.sql.HBaseAccess.HBaseClient.java

License:Apache License

private boolean updatePermissionForEntries(FileStatus[] entries, String hbaseUser, FileSystem fs)
        throws IOException {
    if (entries == null) {
        return true;
    }/*www .j  a v  a 2  s. co  m*/

    for (FileStatus child : entries) {
        Path path = child.getPath();
        List<AclEntry> lacl = AclEntry.parseAclSpec("user:" + hbaseUser + ":rwx", true);
        try {
            fs.modifyAclEntries(path, lacl);
        } catch (IOException e) {
            //if failure just log exception and continue
            if (logger.isTraceEnabled())
                logger.trace("[Snapshot Scan] SnapshotScanHelper.updatePermissionForEntries() exception. " + e);
        }
        if (child.isDir()) {
            FileStatus[] files = FSUtils.listStatus(fs, path);
            updatePermissionForEntries(files, hbaseUser, fs);
        }
    }
    return true;
}

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From source file:org.trafodion.sql.HBaseAccess.HBaseClient.java

License:Apache License

public boolean setArchivePermissions(String tabName) throws IOException, ServiceException {
    if (logger.isTraceEnabled())
        logger.trace("[Snapshot Scan] SnapshotScanHelper.setArchivePermissions() called. ");
    Path rootDir = FSUtils.getRootDir(config);
    FileSystem myfs = FileSystem.get(rootDir.toUri(), config);
    FileStatus fstatus = myfs.getFileStatus(rootDir);
    String hbaseUser = fstatus.getOwner();
    assert (hbaseUser != null && hbaseUser.length() != 0);
    Path tabArcPath = HFileArchiveUtil.getTableArchivePath(config, TableName.valueOf(tabName));
    if (tabArcPath == null)
        return true;
    List<AclEntry> lacl = AclEntry.parseAclSpec("user:" + hbaseUser + ":rwx", true);
    try {//from   ww  w.  j  av a  2 s.co  m
        myfs.modifyAclEntries(tabArcPath, lacl);
    } catch (IOException e) {
        //if failure just log exception and continue
        if (logger.isTraceEnabled())
            logger.trace("[Snapshot Scan] SnapshotScanHelper.setArchivePermissions() exception. " + e);
    }
    FileStatus[] files = FSUtils.listStatus(myfs, tabArcPath);
    updatePermissionForEntries(files, hbaseUser, myfs);
    return true;
}

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From source file:org.trustedanalytics.samples.services.HdfsService.java

License:Apache License

/**
 * Create directory inside file system./*w w  w . j  ava2 s.c o m*/
 *
 * @param fs configured Hadoop FileSystem
 * @param filePath path to the directory
 * @return path to the directory
  @throws IOException io exception
 */

private Path createDirectory(FileSystem fs, String filePath) throws IOException {
    Path path = new Path(filePath);
    fs.mkdirs(path);
    fs.setPermission(path, FsPermission.valueOf("drwxrwxrwx"));
    fs.modifyAclEntries(path, FsPermissionHelper
            .getDefaultAclsForTechnicalUsers(FsPermissionHelper.getToolUsers(), FsAction.ALL));
    fs.modifyAclEntries(path,
            FsPermissionHelper.getAclsForTechnicalUsers(FsPermissionHelper.getToolUsers(), FsAction.ALL));
    return fs.getFileStatus(path).getPath();
}

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