content: /*
   * 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.beam.sdk.extensions.sql.impl.udf;
  
  import com.google.auto.service.AutoService;
  import org.apache.beam.sdk.schemas.Schema;
  import org.apache.beam.vendor.calcite.v1_40_0.org.apache.calcite.linq4j.function.Strict;
  
  /** Hash Functions. */
  @AutoService(BeamBuiltinFunctionProvider.class)
  public class BuiltinHashFunctions extends BeamBuiltinFunctionProvider {
  
    /**
     * MD5(X)
     *
     * <p>Calculates the MD5 digest and returns the value as a 16 element {@code byte[]}.
     */
    @UDF(
        funcName = "MD5",
        parameterArray = {Schema.TypeName.STRING},
        returnType = Schema.TypeName.BYTES)
    @Strict
    public byte[] md5String(String str) {
      return org.apache.commons.codec.digest.DigestUtils.md5(str);
    }
  
    /**
     * MD5(X)
     *
     * <p>Calculates the MD5 digest and returns the value as a 16 element {@code byte[]}.
     */
    @UDF(
        funcName = "MD5",
        parameterArray = {Schema.TypeName.BYTES},
        returnType = Schema.TypeName.BYTES)
    @Strict
    public byte[] md5Bytes(byte[] bytes) {
      return org.apache.commons.codec.digest.DigestUtils.md5(bytes);
    }
  
    /**
     * SHA1(X)
     *
     * <p>Calculates the SHA-1 digest and returns the value as a {@code byte[]}.
     */
    @UDF(
        funcName = "SHA1",
        parameterArray = {Schema.TypeName.STRING},
        returnType = Schema.TypeName.BYTES)
    @Strict
    public byte[] sha1String(String str) {
      return org.apache.commons.codec.digest.DigestUtils.sha1(str);
    }
  
    /**
     * SHA1(X)
     *
     * <p>Calculates the SHA-1 digest and returns the value as a {@code byte[]}.
     */
    @UDF(
        funcName = "SHA1",
        parameterArray = {Schema.TypeName.BYTES},
        returnType = Schema.TypeName.BYTES)
    @Strict
    public byte[] sha1Bytes(byte[] bytes) {
      return org.apache.commons.codec.digest.DigestUtils.sha1(bytes);
    }
  
    /**
     * SHA256(X)
     *
     * <p>Calculates the SHA-1 digest and returns the value as a {@code byte[]}.
     */
    @UDF(
        funcName = "SHA256",
        parameterArray = {Schema.TypeName.STRING},
        returnType = Schema.TypeName.BYTES)
    @Strict
    public byte[] sha256String(String str) {
      return org.apache.commons.codec.digest.DigestUtils.sha256(str);
    }
  
    /**
     * SHA256(X)
     *
     * <p>Calculates the SHA-1 digest and returns the value as a {@code byte[]}.
     */
    @UDF(
        funcName = "SHA256",
        parameterArray = {Schema.TypeName.BYTES},
        returnType = Schema.TypeName.BYTES)
    @Strict
    public byte[] sha256Bytes(byte[] bytes) {
      return org.apache.commons.codec.digest.DigestUtils.sha256(bytes);
    }
  
    /**
     * SHA512(X)
     *
     * <p>Calculates the SHA-1 digest and returns the value as a {@code byte[]}.
     */
    @UDF(
        funcName = "SHA512",
        parameterArray = {Schema.TypeName.STRING},
        returnType = Schema.TypeName.BYTES)
    @Strict
    public byte[] sha512String(String str) {
      return org.apache.commons.codec.digest.DigestUtils.sha512(str);
    }
  
    /**
     * SHA512(X)
     *
     * <p>Calculates the SHA-1 digest and returns the value as a {@code byte[]}.
     */
    @UDF(
        funcName = "SHA512",
        parameterArray = {Schema.TypeName.BYTES},
        returnType = Schema.TypeName.BYTES)
    @Strict
    public byte[] sha512Bytes(byte[] bytes) {
      return org.apache.commons.codec.digest.DigestUtils.sha512(bytes);
    }
  }
  