Java Delete.addColumns方法代码示例

import org.apache.hadoop.hbase.client.Delete; //导入方法依赖的package包/类
/**
 * Removes a previously granted permission from the stored access control
 * lists.  The {@link TablePermission} being removed must exactly match what
 * is stored -- no wildcard matching is attempted.  Ie, if user "bob" has
 * been granted "READ" access to the "data" table, but only to column family
 * plus qualifier "info:colA", then trying to call this method with only
 * user "bob" and the table name "data" (but without specifying the
 * column qualifier "info:colA") will have no effect.
 *
 * @param conf the configuration
 * @param userPerm the details of the permission to be revoked
 * @throws IOException if there is an error accessing the metadata table
 */
static void removeUserPermission(Configuration conf, UserPermission userPerm)
    throws IOException {
  Delete d = new Delete(userPermissionRowKey(userPerm));
  byte[] key = userPermissionKey(userPerm);

  if (LOG.isDebugEnabled()) {
    LOG.debug("Removing permission "+ userPerm.toString());
  }
  d.addColumns(ACL_LIST_FAMILY, key);
  // TODO: Pass in a Connection rather than create one each time.
  try (Connection connection = ConnectionFactory.createConnection(conf)) {
    try (Table table = connection.getTable(ACL_TABLE_NAME)) {
      table.delete(d);
    }
  }
}
 

import org.apache.hadoop.hbase.client.Delete; //导入方法依赖的package包/类
private Delete createDelete(Object key) {
  try {
    @SuppressWarnings("unchecked")
    Delete delete = new Delete(keySerializer.serialize((K) key));
    delete.addColumns(family(), QUALIFIER);
    return delete;
  } catch (ClassCastException | SerializationException e) {
    throw new CacheWriterException("Failed to create delete", e);
  }
}
 

import org.apache.hadoop.hbase.client.Delete; //导入方法依赖的package包/类
private static void deleteQuotas(final Connection connection, final byte[] rowKey,
    final byte[] qualifier) throws IOException {
  Delete delete = new Delete(rowKey);
  if (qualifier != null) {
    delete.addColumns(QUOTA_FAMILY_INFO, qualifier);
  }
  doDelete(connection, delete);
}
 

import org.apache.hadoop.hbase.client.Delete; //导入方法依赖的package包/类
@Test
public void testVisibilityLabelsWithDeleteColumns() throws Throwable {
  setAuths();
  final TableName tableName = TableName.valueOf(TEST_NAME.getMethodName());

  try (Table table = createTableAndWriteDataWithLabels(tableName,
      SECRET + "&" + TOPSECRET, SECRET)) {
    PrivilegedExceptionAction<Void> actiona = new PrivilegedExceptionAction<Void>() {
      @Override
      public Void run() throws Exception {
        try (Connection connection = ConnectionFactory.createConnection(conf);
             Table table = connection.getTable(tableName)) {
          Delete d = new Delete(row1);
          d.setCellVisibility(new CellVisibility(TOPSECRET + "&" + SECRET));
          d.addColumns(fam, qual);
          table.delete(d);
        } catch (Throwable t) {
          throw new IOException(t);
        }
        return null;
      }
    };
    SUPERUSER.runAs(actiona);

    TEST_UTIL.getHBaseAdmin().flush(tableName);
    Scan s = new Scan();
    s.setAuthorizations(new Authorizations(SECRET, PRIVATE, CONFIDENTIAL));
    ResultScanner scanner = table.getScanner(s);
    Result[] next = scanner.next(3);
    assertTrue(next.length == 1);
    CellScanner cellScanner = next[0].cellScanner();
    cellScanner.advance();
    Cell current = cellScanner.current();
    assertTrue(Bytes.equals(current.getRowArray(), current.getRowOffset(),
        current.getRowLength(), row2, 0, row2.length));

  }
}
 

import org.apache.hadoop.hbase.client.Delete; //导入方法依赖的package包/类
/**
 * Remove specified table column from the acl table.
 */
static void removeTablePermissions(Configuration conf, TableName tableName, byte[] column)
    throws IOException{

  if (LOG.isDebugEnabled()) {
    LOG.debug("Removing permissions of removed column " + Bytes.toString(column) +
              " from table "+ tableName);
  }
  // TODO: Pass in a Connection rather than create one each time.
  try (Connection connection = ConnectionFactory.createConnection(conf)) {
    try (Table table = connection.getTable(ACL_TABLE_NAME)) {
      Scan scan = new Scan();
      scan.addFamily(ACL_LIST_FAMILY);

      String columnName = Bytes.toString(column);
      scan.setFilter(new QualifierFilter(CompareOp.EQUAL, new RegexStringComparator(
          String.format("(%s%s%s)|(%s%s)$",
              ACL_KEY_DELIMITER, columnName, ACL_KEY_DELIMITER,
              ACL_KEY_DELIMITER, columnName))));

      Set<byte[]> qualifierSet = new TreeSet<byte[]>(Bytes.BYTES_COMPARATOR);
      ResultScanner scanner = table.getScanner(scan);
      try {
        for (Result res : scanner) {
          for (byte[] q : res.getFamilyMap(ACL_LIST_FAMILY).navigableKeySet()) {
            qualifierSet.add(q);
          }
        }
      } finally {
        scanner.close();
      }

      if (qualifierSet.size() > 0) {
        Delete d = new Delete(tableName.getName());
        for (byte[] qualifier : qualifierSet) {
          d.addColumns(ACL_LIST_FAMILY, qualifier);
        }
        table.delete(d);
      }
    }
  }
}
 

import org.apache.hadoop.hbase.client.Delete; //导入方法依赖的package包/类
@Test
public void testVisibilityLabelsWithDeleteColumnsWithMultipleVersions() throws Exception {
  setAuths();
  final TableName tableName = TableName.valueOf(TEST_NAME.getMethodName());
  try (Table table = doPuts(tableName)) {
    TEST_UTIL.getHBaseAdmin().flush(tableName);
    PrivilegedExceptionAction<Void> actiona = new PrivilegedExceptionAction<Void>() {
      @Override
      public Void run() throws Exception {
        try (Connection connection = ConnectionFactory.createConnection(conf);
             Table table = connection.getTable(tableName)) {
          Delete d = new Delete(row1);
          d.setCellVisibility(new CellVisibility("(" + PRIVATE + "&" + CONFIDENTIAL + ")|(" +
              SECRET + "&" + TOPSECRET+")"));
          d.addColumns(fam, qual, 125l);
          table.delete(d);
        } catch (Throwable t) {
          throw new IOException(t);
        }
        return null;
      }
    };
    SUPERUSER.runAs(actiona);

    TEST_UTIL.getHBaseAdmin().flush(tableName);
    Scan s = new Scan();
    s.setMaxVersions(5);
    s.setAuthorizations(new Authorizations(SECRET, PRIVATE, CONFIDENTIAL, TOPSECRET));
    ResultScanner scanner = table.getScanner(s);
    Result[] next = scanner.next(3);
    assertTrue(next.length == 2);
    CellScanner cellScanner = next[0].cellScanner();
    cellScanner.advance();
    Cell current = cellScanner.current();
    assertTrue(Bytes.equals(current.getRowArray(), current.getRowOffset(),
        current.getRowLength(), row1, 0, row1.length));
    assertEquals(current.getTimestamp(), 127l);
    cellScanner.advance();
    current = cellScanner.current();
    assertTrue(Bytes.equals(current.getRowArray(), current.getRowOffset(),
        current.getRowLength(), row1, 0, row1.length));
    assertEquals(current.getTimestamp(), 126l);
    cellScanner.advance();
    current = cellScanner.current();
    assertTrue(Bytes.equals(current.getRowArray(), current.getRowOffset(),
        current.getRowLength(), row1, 0, row1.length));
    assertEquals(current.getTimestamp(), 125l);
    cellScanner = next[1].cellScanner();
    cellScanner.advance();
    current = cellScanner.current();
    assertTrue(Bytes.equals(current.getRowArray(), current.getRowOffset(),
        current.getRowLength(), row2, 0, row2.length));
  }
}
 

import org.apache.hadoop.hbase.client.Delete; //导入方法依赖的package包/类
@Test
public void testVisibilityLabelsWithDeleteColumnsWithMultipleVersionsNoTimestamp()
    throws Exception {
  setAuths();
  final TableName tableName = TableName.valueOf(TEST_NAME.getMethodName());
  try (Table table = doPuts(tableName)) {
    TEST_UTIL.getHBaseAdmin().flush(tableName);
    PrivilegedExceptionAction<Void> actiona = new PrivilegedExceptionAction<Void>() {
      @Override
      public Void run() throws Exception {
        try (Connection connection = ConnectionFactory.createConnection(conf);
             Table table = connection.getTable(tableName)) {
          Delete d1 = new Delete(row1);
          d1.setCellVisibility(new CellVisibility(CONFIDENTIAL));
          d1.addColumns(fam, qual);

          table.delete(d1);

          Delete d2 = new Delete(row1);
          d2.setCellVisibility(new CellVisibility(SECRET + "&" + TOPSECRET));
          d2.addColumns(fam, qual);
          table.delete(d2);

          Delete d3 = new Delete(row1);
          d3.setCellVisibility(new CellVisibility("(" + PRIVATE + "&" + CONFIDENTIAL + ")|("
              + SECRET + "&" + TOPSECRET + ")"));
          d3.addColumns(fam, qual);
          table.delete(d3);
        } catch (Throwable t) {
          throw new IOException(t);
        }
        return null;
      }
    };
    SUPERUSER.runAs(actiona);
    Scan s = new Scan();
    s.setMaxVersions(5);
    s.setAuthorizations(new Authorizations(SECRET, PRIVATE, CONFIDENTIAL, TOPSECRET));
    ResultScanner scanner = table.getScanner(s);
    Result[] next = scanner.next(3);
    assertEquals(1, next.length);
    CellScanner cellScanner = next[0].cellScanner();
    cellScanner.advance();
    Cell current = cellScanner.current();
    assertTrue(Bytes.equals(current.getRowArray(), current.getRowOffset(),
        current.getRowLength(), row2, 0, row2.length));
  }
}
 

import org.apache.hadoop.hbase.client.Delete; //导入方法依赖的package包/类
@Test
public void testDeleteFamilyAndDeleteColumnsWithAndWithoutVisibilityExp() throws Exception {
  setAuths();
  final TableName tableName = TableName.valueOf(TEST_NAME.getMethodName());
  try (Table table = doPuts(tableName)) {
    TEST_UTIL.getHBaseAdmin().flush(tableName);
    PrivilegedExceptionAction<Void> actiona = new PrivilegedExceptionAction<Void>() {
      @Override
      public Void run() throws Exception {
        Delete d1 = new Delete(row1);
        d1.addFamily(fam);

        Delete d2 = new Delete(row1);
        d2.setCellVisibility(new CellVisibility(SECRET + "&" + TOPSECRET));
        d2.addColumns(fam, qual);
        try (Connection connection = ConnectionFactory.createConnection(conf);
             Table table = connection.getTable(tableName)) {
          table.delete(createList(d1, d2));
        } catch (Throwable t) {
          throw new IOException(t);
        }
        return null;
      }
    };
    SUPERUSER.runAs(actiona);
    Scan s = new Scan();
    s.setMaxVersions(5);
    s.setAuthorizations(new Authorizations(SECRET, PRIVATE, CONFIDENTIAL, TOPSECRET));
    ResultScanner scanner = table.getScanner(s);
    Result[] next = scanner.next(3);
    assertTrue(next.length == 2);
    CellScanner cellScanner = next[0].cellScanner();
    cellScanner.advance();
    Cell current = cellScanner.current();
    assertTrue(Bytes.equals(current.getRowArray(), current.getRowOffset(),
        current.getRowLength(), row1, 0, row1.length));
    assertEquals(current.getTimestamp(), 127l);
    cellScanner.advance();
    current = cellScanner.current();
    assertTrue(Bytes.equals(current.getRowArray(), current.getRowOffset(),
        current.getRowLength(), row1, 0, row1.length));
    assertEquals(current.getTimestamp(), 126l);
    cellScanner.advance();
    current = cellScanner.current();
    assertTrue(Bytes.equals(current.getRowArray(), current.getRowOffset(),
        current.getRowLength(), row1, 0, row1.length));
    assertEquals(current.getTimestamp(), 124l);
    cellScanner.advance();
    current = cellScanner.current();
    assertTrue(Bytes.equals(current.getRowArray(), current.getRowOffset(),
        current.getRowLength(), row1, 0, row1.length));
    assertEquals(current.getTimestamp(), 123l);
    cellScanner = next[1].cellScanner();
    cellScanner.advance();
    current = cellScanner.current();
    assertTrue(Bytes.equals(current.getRowArray(), current.getRowOffset(),
        current.getRowLength(), row2, 0, row2.length));
    scanner.close();
  }
}
 

import org.apache.hadoop.hbase.client.Delete; //导入方法依赖的package包/类
@Test
public void testDeleteColumnswithMultipleColumnsWithMultipleVersions() throws Exception {
  setAuths();
  final TableName tableName = TableName.valueOf(TEST_NAME.getMethodName());
  try (Table table = doPutsWithDiffCols(tableName)) {
    TEST_UTIL.getHBaseAdmin().flush(tableName);
    PrivilegedExceptionAction<Void> actiona = new PrivilegedExceptionAction<Void>() {
      @Override
      public Void run() throws Exception {
        Delete d = new Delete(row1);
        d.setCellVisibility(new CellVisibility(SECRET + "&" + TOPSECRET));
        d.addColumns(fam, qual, 125l);
        try (Connection connection = ConnectionFactory.createConnection(conf);
             Table table = connection.getTable(tableName)) {
          table.delete(d);
        } catch (Throwable t) {
          throw new IOException(t);
        }
        return null;
      }
    };
    SUPERUSER.runAs(actiona);

    TEST_UTIL.getHBaseAdmin().flush(tableName);
    Scan s = new Scan();
    s.setMaxVersions(5);
    s.setAuthorizations(new Authorizations(SECRET, PRIVATE, CONFIDENTIAL, TOPSECRET));
    ResultScanner scanner = table.getScanner(s);
    Result[] next = scanner.next(3);
    assertTrue(next.length == 1);
    CellScanner cellScanner = next[0].cellScanner();
    cellScanner.advance();
    Cell current = cellScanner.current();
    assertTrue(Bytes.equals(current.getRowArray(), current.getRowOffset(),
        current.getRowLength(), row1, 0, row1.length));
    assertEquals(current.getTimestamp(), 124l);
    cellScanner.advance();
    current = cellScanner.current();
    assertTrue(Bytes.equals(current.getRowArray(), current.getRowOffset(),
        current.getRowLength(), row1, 0, row1.length));
    assertEquals(current.getTimestamp(), 123l);
    cellScanner.advance();
    current = cellScanner.current();
    assertTrue(Bytes.equals(current.getRowArray(), current.getRowOffset(),
        current.getRowLength(), row1, 0, row1.length));
    assertTrue(Bytes.equals(current.getQualifierArray(), current.getQualifierOffset(),
        current.getQualifierLength(), qual1, 0, qual1.length));
    assertEquals(current.getTimestamp(), 126l);
    cellScanner.advance();
    current = cellScanner.current();
    assertTrue(Bytes.equals(current.getRowArray(), current.getRowOffset(),
        current.getRowLength(), row1, 0, row1.length));
    assertEquals(current.getTimestamp(), 127l);
    assertTrue(Bytes.equals(current.getQualifierArray(), current.getQualifierOffset(),
        current.getQualifierLength(), qual2, 0, qual2.length));
  }
}