| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.ranger.authorization.hive.udf; |
| |
| import java.sql.Date; |
| |
| import org.apache.commons.codec.digest.DigestUtils; |
| import org.apache.hadoop.hive.ql.exec.Description; |
| import org.apache.hadoop.hive.serde2.objectinspector.ObjectInspector; |
| |
| |
| @Description(name = "mask_hash", |
| value = "returns hash of the given value", |
| extended = "Examples:\n " |
| + " mask_hash(value)\n " |
| + "Arguments:\n " |
| + " value - value to mask. Supported types: STRING, VARCHAR, CHAR" |
| ) |
| public class RangerUdfMaskHash extends RangerBaseUdf { |
| public static final String UDF_NAME = "mask_hash"; |
| |
| public RangerUdfMaskHash() { |
| super(new MaskHashTransformer(), UDF_NAME); |
| } |
| } |
| |
| class MaskHashTransformer extends AbstractTransformer { |
| @Override |
| public void init(ObjectInspector[] arguments, int startIdx) { |
| } |
| |
| @Override |
| String transform(final String value) { |
| return DigestUtils.sha256Hex(value); |
| } |
| |
| @Override |
| Byte transform(final Byte value) { |
| return null; |
| } |
| |
| @Override |
| Short transform(final Short value) { |
| return null; |
| } |
| |
| @Override |
| Integer transform(final Integer value) { |
| return null; |
| } |
| |
| @Override |
| Long transform(final Long value) { |
| return null; |
| } |
| |
| @Override |
| Date transform(final Date value) { |
| return null; |
| } |
| } |