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Example 1 with Permission

use of org.apache.hadoop.hbase.security.access.Permission in project hbase by apache.

the class TestSecureExport method testVisibilityLabels.

@Test
// See HBASE-23990
@org.junit.Ignore
public void testVisibilityLabels() throws IOException, Throwable {
    final String exportTable = name.getMethodName() + "_export";
    final String importTable = name.getMethodName() + "_import";
    final TableDescriptor exportHtd = TableDescriptorBuilder.newBuilder(TableName.valueOf(exportTable)).setColumnFamily(ColumnFamilyDescriptorBuilder.of(FAMILYA)).build();
    User owner = User.createUserForTesting(UTIL.getConfiguration(), USER_OWNER, new String[0]);
    SecureTestUtil.createTable(UTIL, owner, exportHtd, new byte[][] { Bytes.toBytes("s") });
    AccessTestAction putAction = () -> {
        Put p1 = new Put(ROW1);
        p1.addColumn(FAMILYA, QUAL, NOW, QUAL);
        p1.setCellVisibility(new CellVisibility(SECRET));
        Put p2 = new Put(ROW2);
        p2.addColumn(FAMILYA, QUAL, NOW, QUAL);
        p2.setCellVisibility(new CellVisibility(PRIVATE + " & " + CONFIDENTIAL));
        Put p3 = new Put(ROW3);
        p3.addColumn(FAMILYA, QUAL, NOW, QUAL);
        p3.setCellVisibility(new CellVisibility("!" + CONFIDENTIAL + " & " + TOPSECRET));
        try (Connection conn = ConnectionFactory.createConnection(UTIL.getConfiguration());
            Table t = conn.getTable(TableName.valueOf(exportTable))) {
            t.put(p1);
            t.put(p2);
            t.put(p3);
        }
        return null;
    };
    SecureTestUtil.verifyAllowed(putAction, getUserByLogin(USER_OWNER));
    List<Pair<List<String>, Integer>> labelsAndRowCounts = new LinkedList<>();
    labelsAndRowCounts.add(new Pair<>(Arrays.asList(SECRET), 1));
    labelsAndRowCounts.add(new Pair<>(Arrays.asList(PRIVATE, CONFIDENTIAL), 1));
    labelsAndRowCounts.add(new Pair<>(Arrays.asList(TOPSECRET), 1));
    labelsAndRowCounts.add(new Pair<>(Arrays.asList(TOPSECRET, CONFIDENTIAL), 0));
    labelsAndRowCounts.add(new Pair<>(Arrays.asList(TOPSECRET, CONFIDENTIAL, PRIVATE, SECRET), 2));
    for (final Pair<List<String>, Integer> labelsAndRowCount : labelsAndRowCounts) {
        final List<String> labels = labelsAndRowCount.getFirst();
        final int rowCount = labelsAndRowCount.getSecond();
        // create a open permission directory.
        final Path openDir = new Path("testAccessCase");
        final FileSystem fs = openDir.getFileSystem(UTIL.getConfiguration());
        fs.mkdirs(openDir);
        fs.setPermission(openDir, new FsPermission(FsAction.ALL, FsAction.ALL, FsAction.ALL));
        final Path output = fs.makeQualified(new Path(openDir, "output"));
        AccessTestAction exportAction = () -> {
            StringBuilder buf = new StringBuilder();
            labels.forEach(v -> buf.append(v).append(","));
            buf.deleteCharAt(buf.length() - 1);
            try {
                String[] args = new String[] { "-D " + ExportUtils.EXPORT_VISIBILITY_LABELS + "=" + buf.toString(), exportTable, output.toString() };
                Export.run(new Configuration(UTIL.getConfiguration()), args);
                return null;
            } catch (ServiceException | IOException ex) {
                throw ex;
            } catch (Throwable ex) {
                throw new Exception(ex);
            }
        };
        SecureTestUtil.verifyAllowed(exportAction, getUserByLogin(USER_OWNER));
        final TableDescriptor importHtd = TableDescriptorBuilder.newBuilder(TableName.valueOf(importTable)).setColumnFamily(ColumnFamilyDescriptorBuilder.of(FAMILYB)).build();
        SecureTestUtil.createTable(UTIL, owner, importHtd, new byte[][] { Bytes.toBytes("s") });
        AccessTestAction importAction = () -> {
            String[] args = new String[] { "-D" + Import.CF_RENAME_PROP + "=" + FAMILYA_STRING + ":" + FAMILYB_STRING, importTable, output.toString() };
            assertEquals(0, ToolRunner.run(new Configuration(UTIL.getConfiguration()), new Import(), args));
            return null;
        };
        SecureTestUtil.verifyAllowed(importAction, getUserByLogin(USER_OWNER));
        AccessTestAction scanAction = () -> {
            Scan scan = new Scan();
            scan.setAuthorizations(new Authorizations(labels));
            try (Connection conn = ConnectionFactory.createConnection(UTIL.getConfiguration());
                Table table = conn.getTable(importHtd.getTableName());
                ResultScanner scanner = table.getScanner(scan)) {
                int count = 0;
                for (Result r : scanner) {
                    ++count;
                }
                assertEquals(rowCount, count);
            }
            return null;
        };
        SecureTestUtil.verifyAllowed(scanAction, getUserByLogin(USER_OWNER));
        AccessTestAction deleteAction = () -> {
            UTIL.deleteTable(importHtd.getTableName());
            return null;
        };
        SecureTestUtil.verifyAllowed(deleteAction, getUserByLogin(USER_OWNER));
        clearOutput(output);
    }
    AccessTestAction deleteAction = () -> {
        UTIL.deleteTable(exportHtd.getTableName());
        return null;
    };
    SecureTestUtil.verifyAllowed(deleteAction, getUserByLogin(USER_OWNER));
}
Also used : Arrays(java.util.Arrays) UserProvider(org.apache.hadoop.hbase.security.UserProvider) VisibilityConstants(org.apache.hadoop.hbase.security.visibility.VisibilityConstants) Result(org.apache.hadoop.hbase.client.Result) FileSystem(org.apache.hadoop.fs.FileSystem) LoggerFactory(org.slf4j.LoggerFactory) PermissionStorage(org.apache.hadoop.hbase.security.access.PermissionStorage) FileStatus(org.apache.hadoop.fs.FileStatus) FsPermission(org.apache.hadoop.fs.permission.FsPermission) ServiceException(org.apache.hbase.thirdparty.com.google.protobuf.ServiceException) AccessControlConstants(org.apache.hadoop.hbase.security.access.AccessControlConstants) VisibilityLabelsProtos(org.apache.hadoop.hbase.shaded.protobuf.generated.VisibilityLabelsProtos) Map(java.util.Map) Configuration(org.apache.hadoop.conf.Configuration) After(org.junit.After) Path(org.apache.hadoop.fs.Path) HadoopSecurityEnabledUserProviderForTesting(org.apache.hadoop.hbase.security.HadoopSecurityEnabledUserProviderForTesting) ClassRule(org.junit.ClassRule) Pair(org.apache.hadoop.hbase.util.Pair) AfterClass(org.junit.AfterClass) HBaseTestingUtil(org.apache.hadoop.hbase.HBaseTestingUtil) HBaseClassTestRule(org.apache.hadoop.hbase.HBaseClassTestRule) PrivilegedExceptionAction(java.security.PrivilegedExceptionAction) HBaseKerberosUtils(org.apache.hadoop.hbase.security.HBaseKerberosUtils) Category(org.junit.experimental.categories.Category) List(java.util.List) ResultScanner(org.apache.hadoop.hbase.client.ResultScanner) VisibilityClient(org.apache.hadoop.hbase.security.visibility.VisibilityClient) EnvironmentEdgeManager(org.apache.hadoop.hbase.util.EnvironmentEdgeManager) ExportUtils(org.apache.hadoop.hbase.mapreduce.ExportUtils) TableDescriptor(org.apache.hadoop.hbase.client.TableDescriptor) Permission(org.apache.hadoop.hbase.security.access.Permission) AccessTestAction(org.apache.hadoop.hbase.security.access.SecureTestUtil.AccessTestAction) BeforeClass(org.junit.BeforeClass) FsAction(org.apache.hadoop.fs.permission.FsAction) User(org.apache.hadoop.hbase.security.User) TableDescriptorBuilder(org.apache.hadoop.hbase.client.TableDescriptorBuilder) ColumnFamilyDescriptorBuilder(org.apache.hadoop.hbase.client.ColumnFamilyDescriptorBuilder) UserGroupInformation(org.apache.hadoop.security.UserGroupInformation) TestName(org.junit.rules.TestName) LinkedList(java.util.LinkedList) Bytes(org.apache.hadoop.hbase.util.Bytes) Before(org.junit.Before) TableName(org.apache.hadoop.hbase.TableName) Logger(org.slf4j.Logger) MediumTests(org.apache.hadoop.hbase.testclassification.MediumTests) Put(org.apache.hadoop.hbase.client.Put) Import(org.apache.hadoop.hbase.mapreduce.Import) MiniKdc(org.apache.hadoop.minikdc.MiniKdc) ToolRunner(org.apache.hadoop.util.ToolRunner) IOException(java.io.IOException) Test(org.junit.Test) File(java.io.File) ConnectionFactory(org.apache.hadoop.hbase.client.ConnectionFactory) Scan(org.apache.hadoop.hbase.client.Scan) Authorizations(org.apache.hadoop.hbase.security.visibility.Authorizations) Rule(org.junit.Rule) SecureTestUtil(org.apache.hadoop.hbase.security.access.SecureTestUtil) VisibilityTestUtil(org.apache.hadoop.hbase.security.visibility.VisibilityTestUtil) CellVisibility(org.apache.hadoop.hbase.security.visibility.CellVisibility) Connection(org.apache.hadoop.hbase.client.Connection) Table(org.apache.hadoop.hbase.client.Table) Assert.assertEquals(org.junit.Assert.assertEquals) User(org.apache.hadoop.hbase.security.User) Import(org.apache.hadoop.hbase.mapreduce.Import) Configuration(org.apache.hadoop.conf.Configuration) AccessTestAction(org.apache.hadoop.hbase.security.access.SecureTestUtil.AccessTestAction) CellVisibility(org.apache.hadoop.hbase.security.visibility.CellVisibility) Result(org.apache.hadoop.hbase.client.Result) FileSystem(org.apache.hadoop.fs.FileSystem) List(java.util.List) LinkedList(java.util.LinkedList) FsPermission(org.apache.hadoop.fs.permission.FsPermission) Pair(org.apache.hadoop.hbase.util.Pair) Path(org.apache.hadoop.fs.Path) Authorizations(org.apache.hadoop.hbase.security.visibility.Authorizations) Table(org.apache.hadoop.hbase.client.Table) ResultScanner(org.apache.hadoop.hbase.client.ResultScanner) Connection(org.apache.hadoop.hbase.client.Connection) TableDescriptor(org.apache.hadoop.hbase.client.TableDescriptor) Put(org.apache.hadoop.hbase.client.Put) LinkedList(java.util.LinkedList) ServiceException(org.apache.hbase.thirdparty.com.google.protobuf.ServiceException) IOException(java.io.IOException) Scan(org.apache.hadoop.hbase.client.Scan) Test(org.junit.Test)

Example 2 with Permission

use of org.apache.hadoop.hbase.security.access.Permission in project hbase by apache.

the class TestGet method TestGetRowFromGetCopyConstructor.

@Test
public void TestGetRowFromGetCopyConstructor() throws Exception {
    Get get = new Get(ROW);
    get.setFilter(null);
    get.setAuthorizations(new Authorizations("foo"));
    get.setACL("u", new Permission(Permission.Action.READ));
    get.setConsistency(Consistency.TIMELINE);
    get.setReplicaId(2);
    get.setIsolationLevel(IsolationLevel.READ_UNCOMMITTED);
    get.setCheckExistenceOnly(true);
    get.setTimeRange(3, 4);
    get.readVersions(11);
    get.setMaxResultsPerColumnFamily(10);
    get.setRowOffsetPerColumnFamily(11);
    get.setCacheBlocks(true);
    Get copyGet = new Get(get);
    assertEquals(0, Bytes.compareTo(get.getRow(), copyGet.getRow()));
    // from OperationWithAttributes
    assertEquals(get.getId(), copyGet.getId());
    // from Query class
    assertEquals(get.getFilter(), copyGet.getFilter());
    assertTrue(get.getAuthorizations().toString().equals(copyGet.getAuthorizations().toString()));
    assertTrue(Bytes.equals(get.getACL(), copyGet.getACL()));
    assertEquals(get.getConsistency(), copyGet.getConsistency());
    assertEquals(get.getReplicaId(), copyGet.getReplicaId());
    assertEquals(get.getIsolationLevel(), copyGet.getIsolationLevel());
    // from Get class
    assertEquals(get.isCheckExistenceOnly(), copyGet.isCheckExistenceOnly());
    assertTrue(get.getTimeRange().equals(copyGet.getTimeRange()));
    assertEquals(get.getMaxVersions(), copyGet.getMaxVersions());
    assertEquals(get.getMaxResultsPerColumnFamily(), copyGet.getMaxResultsPerColumnFamily());
    assertEquals(get.getRowOffsetPerColumnFamily(), copyGet.getRowOffsetPerColumnFamily());
    assertEquals(get.getCacheBlocks(), copyGet.getCacheBlocks());
    assertEquals(get.getId(), copyGet.getId());
}
Also used : Authorizations(org.apache.hadoop.hbase.security.visibility.Authorizations) Permission(org.apache.hadoop.hbase.security.access.Permission) Test(org.junit.Test)

Example 3 with Permission

use of org.apache.hadoop.hbase.security.access.Permission in project hbase by apache.

the class TestImmutableScan method testScanCopyConstructor.

@Test
public void testScanCopyConstructor() throws Exception {
    Scan scan = new Scan();
    scan.addColumn(Bytes.toBytes("cf"), Bytes.toBytes("q")).setACL("test_user2", new Permission(Permission.Action.READ)).setAllowPartialResults(true).setAsyncPrefetch(false).setAttribute("test_key", Bytes.toBytes("test_value")).setAuthorizations(new Authorizations("test_label")).setBatch(10).setCacheBlocks(false).setCaching(10).setConsistency(Consistency.TIMELINE).setFilter(new FilterList()).setId("scan_copy_constructor").setIsolationLevel(IsolationLevel.READ_COMMITTED).setLimit(100).setLoadColumnFamiliesOnDemand(false).setMaxResultSize(100).setMaxResultsPerColumnFamily(1000).readVersions(9999).setMvccReadPoint(5).setNeedCursorResult(true).setPriority(1).setRaw(true).setReplicaId(3).setReversed(true).setRowOffsetPerColumnFamily(5).setRowPrefixFilter(Bytes.toBytes("row_")).setScanMetricsEnabled(true).setReadType(Scan.ReadType.STREAM).withStartRow(Bytes.toBytes("row_1")).withStopRow(Bytes.toBytes("row_2")).setTimeRange(0, 13);
    // create a copy of existing scan object
    Scan scanCopy = new ImmutableScan(scan);
    // validate fields of copied scan object match with the original scan object
    assertArrayEquals(scan.getACL(), scanCopy.getACL());
    assertEquals(scan.getAllowPartialResults(), scanCopy.getAllowPartialResults());
    assertArrayEquals(scan.getAttribute("test_key"), scanCopy.getAttribute("test_key"));
    assertEquals(scan.getAttributeSize(), scanCopy.getAttributeSize());
    assertEquals(scan.getAttributesMap(), scanCopy.getAttributesMap());
    assertEquals(scan.getAuthorizations().getLabels(), scanCopy.getAuthorizations().getLabels());
    assertEquals(scan.getBatch(), scanCopy.getBatch());
    assertEquals(scan.getCacheBlocks(), scanCopy.getCacheBlocks());
    assertEquals(scan.getCaching(), scanCopy.getCaching());
    assertEquals(scan.getConsistency(), scanCopy.getConsistency());
    assertEquals(scan.getFamilies().length, scanCopy.getFamilies().length);
    assertArrayEquals(scan.getFamilies()[0], scanCopy.getFamilies()[0]);
    assertEquals(scan.getFamilyMap(), scanCopy.getFamilyMap());
    assertEquals(scan.getFilter(), scanCopy.getFilter());
    assertEquals(scan.getId(), scanCopy.getId());
    assertEquals(scan.getIsolationLevel(), scanCopy.getIsolationLevel());
    assertEquals(scan.getLimit(), scanCopy.getLimit());
    assertEquals(scan.getLoadColumnFamiliesOnDemandValue(), scanCopy.getLoadColumnFamiliesOnDemandValue());
    assertEquals(scan.getMaxResultSize(), scanCopy.getMaxResultSize());
    assertEquals(scan.getMaxResultsPerColumnFamily(), scanCopy.getMaxResultsPerColumnFamily());
    assertEquals(scan.getMaxVersions(), scanCopy.getMaxVersions());
    assertEquals(scan.getMvccReadPoint(), scanCopy.getMvccReadPoint());
    assertEquals(scan.getPriority(), scanCopy.getPriority());
    assertEquals(scan.getReadType(), scanCopy.getReadType());
    assertEquals(scan.getReplicaId(), scanCopy.getReplicaId());
    assertEquals(scan.getRowOffsetPerColumnFamily(), scanCopy.getRowOffsetPerColumnFamily());
    assertArrayEquals(scan.getStartRow(), scanCopy.getStartRow());
    assertArrayEquals(scan.getStopRow(), scanCopy.getStopRow());
    assertEquals(scan.getTimeRange(), scanCopy.getTimeRange());
    assertEquals(scan.getFingerprint(), scanCopy.getFingerprint());
    assertEquals(scan.toMap(1), scanCopy.toMap(1));
    assertEquals(scan.toString(2), scanCopy.toString(2));
    assertEquals(scan.toJSON(2), scanCopy.toJSON(2));
    LOG.debug("Compare all getters of scan and scanCopy.");
    compareGetters(scan, scanCopy);
    testUnmodifiableSetters(scanCopy);
}
Also used : Authorizations(org.apache.hadoop.hbase.security.visibility.Authorizations) Permission(org.apache.hadoop.hbase.security.access.Permission) FilterList(org.apache.hadoop.hbase.filter.FilterList) Test(org.junit.Test)

Example 4 with Permission

use of org.apache.hadoop.hbase.security.access.Permission in project hbase by apache.

the class TestScan method testGetToScan.

@Test
public void testGetToScan() throws Exception {
    Get get = new Get(Bytes.toBytes(1));
    get.setCacheBlocks(true).setConsistency(Consistency.TIMELINE).setFilter(new FilterList()).setId("get").setIsolationLevel(IsolationLevel.READ_COMMITTED).setLoadColumnFamiliesOnDemand(false).setMaxResultsPerColumnFamily(1000).readVersions(9999).setRowOffsetPerColumnFamily(5).setTimeRange(0, 13).setAttribute("att_v0", Bytes.toBytes("att_v0")).setColumnFamilyTimeRange(Bytes.toBytes("cf"), 0, 123).setReplicaId(3).setACL("test_user", new Permission(Permission.Action.READ)).setAuthorizations(new Authorizations("test_label")).setPriority(3);
    Scan scan = new Scan(get);
    assertEquals(get.getCacheBlocks(), scan.getCacheBlocks());
    assertEquals(get.getConsistency(), scan.getConsistency());
    assertEquals(get.getFilter(), scan.getFilter());
    assertEquals(get.getId(), scan.getId());
    assertEquals(get.getIsolationLevel(), scan.getIsolationLevel());
    assertEquals(get.getLoadColumnFamiliesOnDemandValue(), scan.getLoadColumnFamiliesOnDemandValue());
    assertEquals(get.getMaxResultsPerColumnFamily(), scan.getMaxResultsPerColumnFamily());
    assertEquals(get.getMaxVersions(), scan.getMaxVersions());
    assertEquals(get.getRowOffsetPerColumnFamily(), scan.getRowOffsetPerColumnFamily());
    assertEquals(get.getTimeRange().getMin(), scan.getTimeRange().getMin());
    assertEquals(get.getTimeRange().getMax(), scan.getTimeRange().getMax());
    assertTrue(Bytes.equals(get.getAttribute("att_v0"), scan.getAttribute("att_v0")));
    assertEquals(get.getColumnFamilyTimeRange().get(Bytes.toBytes("cf")).getMin(), scan.getColumnFamilyTimeRange().get(Bytes.toBytes("cf")).getMin());
    assertEquals(get.getColumnFamilyTimeRange().get(Bytes.toBytes("cf")).getMax(), scan.getColumnFamilyTimeRange().get(Bytes.toBytes("cf")).getMax());
    assertEquals(get.getReplicaId(), scan.getReplicaId());
    assertEquals(get.getACL(), scan.getACL());
    assertEquals(get.getAuthorizations().getLabels(), scan.getAuthorizations().getLabels());
    assertEquals(get.getPriority(), scan.getPriority());
}
Also used : Authorizations(org.apache.hadoop.hbase.security.visibility.Authorizations) Permission(org.apache.hadoop.hbase.security.access.Permission) FilterList(org.apache.hadoop.hbase.filter.FilterList) Test(org.junit.Test)

Example 5 with Permission

use of org.apache.hadoop.hbase.security.access.Permission in project hbase by apache.

the class TestAsyncAccessControlAdminApi method test.

@Test
public void test() throws Exception {
    TableName tableName = TableName.valueOf("test-table");
    String userName1 = "user1";
    String userName2 = "user2";
    User user2 = User.createUserForTesting(TEST_UTIL.getConfiguration(), userName2, new String[0]);
    Permission permission = Permission.newBuilder(tableName).withActions(Permission.Action.READ).build();
    UserPermission userPermission = new UserPermission(userName1, permission);
    // grant user1 table permission
    admin.grant(userPermission, false).get();
    // get table permissions
    List<UserPermission> userPermissions = admin.getUserPermissions(GetUserPermissionsRequest.newBuilder(tableName).build()).get();
    assertEquals(1, userPermissions.size());
    assertEquals(userPermission, userPermissions.get(0));
    // get table permissions
    userPermissions = admin.getUserPermissions(GetUserPermissionsRequest.newBuilder(tableName).withUserName(userName1).build()).get();
    assertEquals(1, userPermissions.size());
    assertEquals(userPermission, userPermissions.get(0));
    userPermissions = admin.getUserPermissions(GetUserPermissionsRequest.newBuilder(tableName).withUserName(userName2).build()).get();
    assertEquals(0, userPermissions.size());
    // has user permission
    List<Permission> permissions = Lists.newArrayList(permission);
    boolean hasPermission = admin.hasUserPermissions(userName1, permissions).get().get(0).booleanValue();
    assertTrue(hasPermission);
    hasPermission = admin.hasUserPermissions(userName2, permissions).get().get(0).booleanValue();
    assertFalse(hasPermission);
    AccessTestAction hasPermissionAction = new AccessTestAction() {

        @Override
        public Object run() throws Exception {
            try (AsyncConnection conn = ConnectionFactory.createAsyncConnection(TEST_UTIL.getConfiguration()).get()) {
                return conn.getAdmin().hasUserPermissions(userName1, permissions).get().get(0);
            }
        }
    };
    try {
        user2.runAs(hasPermissionAction);
        fail("Should not come here");
    } catch (Exception e) {
        LOG.error("Call has permission error", e);
    }
    // check permission
    admin.hasUserPermissions(permissions);
    AccessTestAction checkPermissionsAction = new AccessTestAction() {

        @Override
        public Object run() throws Exception {
            try (AsyncConnection conn = ConnectionFactory.createAsyncConnection(TEST_UTIL.getConfiguration()).get()) {
                return conn.getAdmin().hasUserPermissions(permissions).get().get(0);
            }
        }
    };
    assertFalse((Boolean) user2.runAs(checkPermissionsAction));
}
Also used : TableName(org.apache.hadoop.hbase.TableName) User(org.apache.hadoop.hbase.security.User) AccessTestAction(org.apache.hadoop.hbase.security.access.SecureTestUtil.AccessTestAction) UserPermission(org.apache.hadoop.hbase.security.access.UserPermission) Permission(org.apache.hadoop.hbase.security.access.Permission) UserPermission(org.apache.hadoop.hbase.security.access.UserPermission) Test(org.junit.Test)

Aggregations

Permission (org.apache.hadoop.hbase.security.access.Permission)8 Test (org.junit.Test)6 Authorizations (org.apache.hadoop.hbase.security.visibility.Authorizations)5 IOException (java.io.IOException)3 FilterList (org.apache.hadoop.hbase.filter.FilterList)3 User (org.apache.hadoop.hbase.security.User)3 TableName (org.apache.hadoop.hbase.TableName)2 Connection (org.apache.hadoop.hbase.client.Connection)2 AccessTestAction (org.apache.hadoop.hbase.security.access.SecureTestUtil.AccessTestAction)2 File (java.io.File)1 PrivilegedExceptionAction (java.security.PrivilegedExceptionAction)1 ArrayList (java.util.ArrayList)1 Arrays (java.util.Arrays)1 LinkedList (java.util.LinkedList)1 List (java.util.List)1 Map (java.util.Map)1 Configuration (org.apache.hadoop.conf.Configuration)1 FileStatus (org.apache.hadoop.fs.FileStatus)1 FileSystem (org.apache.hadoop.fs.FileSystem)1 Path (org.apache.hadoop.fs.Path)1