Example usage for org.apache.hadoop.fs RawLocalFileSystem setPermission

Introduction

In this page you can find the example usage for org.apache.hadoop.fs RawLocalFileSystem setPermission.

Prototype

@Override
public void setPermission(Path p, FsPermission permission) throws IOException 

Source Link

Document

Use the command chmod to set permission.

Usage

From source file:com.datatorrent.stram.util.FSUtil.java

License:Apache License

/**
 * Download the file from dfs to local file.
 *
 * @param fs//  w  w  w .j  a v a 2 s. c  o m
 * @param destinationFile
 * @param dfsFile
 * @param conf
 * @return
 * @throws IOException
 */
public static File copyToLocalFileSystem(FileSystem fs, String destinationPath, String destinationFile,
        String dfsFile, Configuration conf) throws IOException {
    File destinationDir = new File(destinationPath);
    if (!destinationDir.exists() && !destinationDir.mkdirs()) {
        throw new RuntimeException("Unable to create local directory");
    }
    RawLocalFileSystem localFileSystem = new RawLocalFileSystem();
    try {
        // allow app user to access local dir
        FsPermission permissions = new FsPermission(FsAction.ALL, FsAction.NONE, FsAction.NONE);
        localFileSystem.setPermission(new Path(destinationDir.getAbsolutePath()), permissions);

        Path dfsFilePath = new Path(dfsFile);
        File localFile = new File(destinationDir, destinationFile);
        FileUtil.copy(fs, dfsFilePath, localFile, false, conf);
        // set permissions on actual file to be read-only for user
        permissions = new FsPermission(FsAction.READ, FsAction.NONE, FsAction.NONE);
        localFileSystem.setPermission(new Path(localFile.getAbsolutePath()), permissions);
        return localFile;
    } finally {
        localFileSystem.close();
    }
}

---

From source file:org.apache.slider.server.services.security.SecurityUtils.java

License:Apache License

public static void initializeSecurityParameters(MapOperations configMap, boolean persistPassword) {
    String keyStoreLocation = configMap.getOption(SliderXmlConfKeys.KEY_KEYSTORE_LOCATION,
            getDefaultKeystoreLocation());
    File secDirFile = new File(keyStoreLocation).getParentFile();
    if (!secDirFile.exists()) {
        // create entire required directory structure
        File dbDir = new File(secDirFile, "db");
        File newCertsDir = new File(dbDir, "newcerts");
        newCertsDir.mkdirs();//w  ww  . j ava  2s . c o m
        try {
            RawLocalFileSystem fileSystem = new RawLocalFileSystem();
            FsPermission permissions = new FsPermission(FsAction.ALL, FsAction.NONE, FsAction.NONE);
            fileSystem.setPermission(new Path(dbDir.getAbsolutePath()), permissions);
            fileSystem.setPermission(new Path(dbDir.getAbsolutePath()), permissions);
            fileSystem.setPermission(new Path(newCertsDir.getAbsolutePath()), permissions);
            File indexFile = new File(dbDir, "index.txt");
            indexFile.createNewFile();

            SecurityUtils.writeCaConfigFile(secDirFile.getAbsolutePath().replace('\\', '/'));

        } catch (IOException e) {
            LOG.error("Unable to create SSL configuration directories/files", e);
        }
        // need to create the password
    }
    keystorePass = getKeystorePassword(secDirFile, persistPassword);
    securityDir = secDirFile.getAbsolutePath();
}

---