Example usage for org.apache.hadoop.fs FileStatus getOwner

Introduction

In this page you can find the example usage for org.apache.hadoop.fs FileStatus getOwner.

Prototype

public String getOwner() 

Source Link

Document

Get the owner of the file.

Usage

From source file:com.amintor.hdfs.client.kerberizedhdfsclient.KerberizedHDFSClient.java

/**
 * @param args the command line arguments
 *///ww  w. java  2  s  . c  o  m
public static void main(String[] args) {

    try {
        Configuration conf = new Configuration();
        conf.addResource(new FileInputStream(HDFS_SITE_LOCATION));
        conf.addResource(new FileInputStream(CORE_SITE_LOCATION));
        String authType = conf.get("hadoop.security.authentication");
        System.out.println("Authentication Type:" + authType);
        if (authType.trim().equalsIgnoreCase("kerberos")) {
            // Login through UGI keytab
            UserGroupInformation.setConfiguration(conf);
            UserGroupInformation.loginUserFromKeytab("vijay", "/Users/vsingh/Software/vijay.keytab");
            FileSystem hdFS = FileSystem.get(conf);
            FileStatus[] listStatus = hdFS.listStatus(new Path(args[0]));
            for (FileStatus statusFile : listStatus) {
                System.out.print("Replication:" + statusFile.getReplication() + "\t");
                System.out.print("Owner:" + statusFile.getOwner() + "\t");
                System.out.print("Group:" + statusFile.getGroup() + "\t");
                System.out.println("Path:" + statusFile.getPath() + "\t");
            }

        }
    } catch (IOException ex) {
        Logger.getLogger(KerberizedHDFSClient.class.getName()).log(Level.SEVERE, null, ex);
    }
}

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From source file:com.cloudera.hadoop.hdfs.nfs.nfs4.attrs.OwnerHandler.java

License:Apache License

@Override
public Owner get(NFS4Handler server, Session session, FileSystem fs, FileStatus fileStatus) {
    Owner owner = new Owner();
    String domain = NFSUtils.getDomain(session.getConfiguration(), session.getClientAddress());
    owner.setOwner(fileStatus.getOwner() + "@" + domain);
    return owner;
}

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From source file:com.cloudera.hadoop.hdfs.nfs.nfs4.attrs.OwnerHandler.java

License:Apache License

@Override
public boolean set(NFS4Handler server, Session session, FileSystem fs, FileStatus fileStatus, StateID stateID,
        Owner attr) throws IOException {
    String user = removeDomain(attr.getOwner());
    if (fileStatus.getOwner().equals(user)) {
        fs.setOwner(fileStatus.getPath(), user, null);
        return true;
    }/*from  ww  w  .ja v a 2 s.  c  om*/
    return false;
}

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From source file:com.cloudera.hadoop.hdfs.nfs.nfs4.handlers.ACCESSHandler.java

License:Apache License

@Override
protected ACCESSResponse doHandle(NFS4Handler server, Session session, ACCESSRequest request)
        throws NFS4Exception {
    if (session.getCurrentFileHandle() == null) {
        throw new NFS4Exception(NFS4ERR_NOFILEHANDLE);
    }// w w  w .j av a2 s  .co m
    CompoundRequest compoundRequest = session.getCompoundRequest();
    AuthenticatedCredentials creds = compoundRequest.getCredentials();
    Path path = server.getPath(session.getCurrentFileHandle());
    try {

        UserIDMapper mapper = UserIDMapper.get(session.getConfiguration());
        String user = mapper.getUserForUID(creds.getUID(), null);
        if (user == null) {
            throw new Exception("Could not map " + creds.getUID() + " to user");
        }
        String group = mapper.getGroupForGID(creds.getGID(), null);
        if (group == null) {
            throw new Exception("Could not map " + creds.getGID() + " to group");
        }

        FileSystem fs = session.getFileSystem();
        FileStatus fileStatus = fs.getFileStatus(path);
        FsPermission perms = fileStatus.getPermission();
        //FsAction action = perms.getUserAction(); // always comes back ALL??

        int permissions = perms.toShort();
        int saved = permissions;
        int rtn = setPerms(permissions, false);
        permissions = permissions >> 3;
        if (group.equals(fileStatus.getGroup())) {
            rtn = setPerms(permissions, true);
        }
        permissions = permissions >> 3;
        if (user.equals(fileStatus.getOwner())) {
            rtn = setPerms(permissions, true);
        }
        if (LOGGER.isDebugEnabled()) {
            LOGGER.debug("Checking access for '" + user + "' and path " + path + " owned by '"
                    + fileStatus.getOwner() + "' permissions " + Integer.toOctalString(saved) + ", Returning "
                    + Integer.toHexString(rtn));
        }
        int access = rtn & request.getAccess();

        ACCESSResponse response = createResponse();
        response.setStatus(NFS4_OK);
        response.setAccess(access);
        response.setSupported(access);
        return response;
    } catch (Exception e) {
        throw new NFS4Exception(NFS4ERR_SERVERFAULT, e);
    }
}

---

From source file:com.cloudera.hadoop.hdfs.nfs.nfs4.state.HDFSState.java

License:Apache License

protected boolean check(String user, List<String> groups, FileStatus status, FsAction access) {
    FsPermission mode = status.getPermission();
    if (user.equals(status.getOwner())) { // user class
        if (mode.getUserAction().implies(access)) {
            return true;
        }/*w  w w .  j  a va 2 s .c om*/
    } else if (groups.contains(status.getGroup())) { // group class
        if (mode.getGroupAction().implies(access)) {
            return true;
        }
    } else { // other class
        if (mode.getOtherAction().implies(access)) {
            return true;
        }
    }
    return false;
}

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From source file:com.cloudera.hadoop.hdfs.nfs.nfs4.TestWithClient.java

License:Apache License

protected void doCompareFileStatusFile(FileStatus fileStatus) throws IOException {
    File file = new File(fileStatus.path.toString());
    String domain = NFSUtils.getDomain(new Configuration(), LOCALHOST);
    assertEquals(getOwner(file) + "@" + domain, fileStatus.getOwner());
    assertEquals(getOwnerGroup(file) + "@" + domain, fileStatus.getOwnerGroup());
    assertEquals(file.length(), fileStatus.getSize());
    assertEquals(file.lastModified(), fileStatus.getMTime());
    assertEquals(file.isDirectory(), fileStatus.isDir());
}

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From source file:com.cloudera.hoop.client.fs.TestHoopFileSystem.java

License:Open Source License

private void testListStatus() throws Exception {
    FileSystem fs = FileSystem.get(getHadoopConf());
    Path path = new Path(getHadoopTestDir(), "foo.txt");
    OutputStream os = fs.create(path);
    os.write(1);/*  w w w  .jav a2s  .  co  m*/
    os.close();
    FileStatus status1 = fs.getFileStatus(path);
    fs.close();

    Configuration conf = new Configuration();
    conf.set("fs.http.impl", HoopFileSystem.class.getName());
    fs = FileSystem.get(getJettyURL().toURI(), conf);
    FileStatus status2 = fs.getFileStatus(new Path(path.toUri().getPath()));
    fs.close();

    Assert.assertEquals(status2.getPermission(), status1.getPermission());
    Assert.assertEquals(status2.getPath().toUri().getPath(), status1.getPath().toUri().getPath());
    Assert.assertEquals(status2.getReplication(), status1.getReplication());
    Assert.assertEquals(status2.getBlockSize(), status1.getBlockSize());
    Assert.assertEquals(status2.getAccessTime(), status1.getAccessTime());
    Assert.assertEquals(status2.getModificationTime(), status1.getModificationTime());
    Assert.assertEquals(status2.getOwner(), status1.getOwner());
    Assert.assertEquals(status2.getGroup(), status1.getGroup());
    Assert.assertEquals(status2.getLen(), status1.getLen());

    FileStatus[] stati = fs.listStatus(path.getParent());
    Assert.assertEquals(stati.length, 1);
    Assert.assertEquals(stati[0].getPath().getName(), path.getName());
}

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From source file:com.cloudera.hoop.client.fs.TestHoopFileSystem.java

License:Open Source License

private void testSetOwner() throws Exception {
    FileSystem fs = FileSystem.get(getHadoopConf());
    Path path = new Path(getHadoopTestDir(), "foo.txt");
    OutputStream os = fs.create(path);
    os.write(1);/*from   ww  w  .j ava2s .co m*/
    os.close();
    fs.close();

    Configuration conf = new Configuration();
    conf.set("fs.http.impl", HoopFileSystem.class.getName());
    fs = FileSystem.get(getJettyURL().toURI(), conf);
    String user = getHadoopUsers()[1];
    String group = getHadoopUserGroups(user)[0];
    fs.setOwner(path, user, group);
    fs.close();

    fs = FileSystem.get(getHadoopConf());
    FileStatus status1 = fs.getFileStatus(path);
    fs.close();
    Assert.assertEquals(status1.getOwner(), user);
    Assert.assertEquals(status1.getGroup(), group);
}

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From source file:com.cloudera.hoop.fs.FSUtils.java

License:Open Source License

/**
 * Converts a Hadoop <code>FileStatus</code> object into a JSON array
 * object. It replaces the <code>SCHEME://HOST:PORT</code> of the path
 * with the  specified URL./*from w w  w.j av a 2s  .  c  o m*/
 * <p/>
 * @param status Hadoop file status.
 * @param hoopBaseUrl base URL to replace the
 * <code>SCHEME://HOST:PORT</code> in the file status.
 * @return The JSON representation of the file status.
 */
@SuppressWarnings("unchecked")
public static Map fileStatusToJSON(FileStatus status, String hoopBaseUrl) {
    Map json = new LinkedHashMap();
    json.put("path", convertPathToHoop(status.getPath(), hoopBaseUrl).toString());
    json.put("isDir", status.isDir());
    json.put("len", status.getLen());
    json.put("owner", status.getOwner());
    json.put("group", status.getGroup());
    json.put("permission", permissionToString(status.getPermission()));
    json.put("accessTime", status.getAccessTime());
    json.put("modificationTime", status.getModificationTime());
    json.put("blockSize", status.getBlockSize());
    json.put("replication", status.getReplication());
    return json;
}

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From source file:com.cloudera.recordbreaker.analyzer.FSAnalyzer.java

License:Open Source License

/**
 * <code>addFileMetadata</code> stores the pathname, size, owner, etc.
 *//*from  w  w  w  .java2  s  .  c o m*/
void addFileMetadata(final FileStatus fstatus, final long crawlId) {
    // Compute strings to represent file metadata
    Path insertFile = fstatus.getPath();
    final boolean isDir = fstatus.isDir();
    FsPermission fsp = fstatus.getPermission();
    final String permissions = (isDir ? "d" : "-") + fsp.getUserAction().SYMBOL + fsp.getGroupAction().SYMBOL
            + fsp.getOtherAction().SYMBOL;

    // Compute formal pathname representation
    String fnameString = null;
    String parentPathString = null;
    if (isDir && insertFile.getParent() == null) {
        parentPathString = "";
        fnameString = insertFile.toString();
    } else {
        fnameString = insertFile.getName();
        parentPathString = insertFile.getParent().toString();

        // REMIND --- mjc --- If we want to modify the Files table s.t. it does
        // not contain the filesystem prefix, then this would be the place to do it.

        if (!parentPathString.endsWith("/")) {
            parentPathString = parentPathString + "/";
        }
    }
    final String parentPath = parentPathString;
    final String fName = fnameString;
    final long fileId = dbQueue.execute(new SQLiteJob<Long>() {
        protected Long job(SQLiteConnection db) throws SQLiteException {
            SQLiteStatement stmt = db.prepare("INSERT into Files VALUES(null, ?, ?, ?, ?, ?, ?, ?, ?, ?)");
            try {
                stmt.bind(1, isDir ? "True" : "False").bind(2, crawlId).bind(3, fName)
                        .bind(4, fstatus.getOwner()).bind(5, fstatus.getGroup()).bind(6, permissions)
                        .bind(7, fstatus.getLen())
                        .bind(8, fileDateFormat.format(new Date(fstatus.getModificationTime())))
                        .bind(9, parentPath);
                stmt.step();
                return db.getLastInsertId();
            } finally {
                stmt.dispose();
            }
        }
    }).complete();
}

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