Github user cgivre commented on a diff in the pull request:
https://github.com/apache/drill/pull/865#discussion_r125486933
--- Diff:
exec/java-exec/src/main/java/org/apache/drill/exec/expr/fn/impl/CryptoFunctions.java
---
@@ -0,0 +1,345 @@
+/**
+ * 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
+ * <p/>
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * <p/>
+ * 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.drill.exec.expr.fn.impl;
+
+import io.netty.buffer.DrillBuf;
+import org.apache.drill.exec.expr.DrillSimpleFunc;
+import org.apache.drill.exec.expr.annotations.FunctionTemplate;
+import org.apache.drill.exec.expr.annotations.Output;
+import org.apache.drill.exec.expr.annotations.Param;
+import org.apache.drill.exec.expr.annotations.Workspace;
+import org.apache.drill.exec.expr.holders.VarCharHolder;
+
+import javax.crypto.Cipher;
+import javax.crypto.spec.SecretKeySpec;
+import javax.inject.Inject;
+
+public class CryptoFunctions {
+ static final org.slf4j.Logger logger =
org.slf4j.LoggerFactory.getLogger(CryptoFunctions.class);
+
+ private CryptoFunctions() {
+ }
+
+ @FunctionTemplate(name = "md5", scope =
FunctionTemplate.FunctionScope.SIMPLE, nulls =
FunctionTemplate.NullHandling.NULL_IF_NULL)
+ public static class MD5Function implements DrillSimpleFunc {
+
+ @Param
+ VarCharHolder rawInput;
+
+ @Output
+ VarCharHolder out;
+
+ @Inject
+ DrillBuf buffer;
+
+ @Workspace
+ java.security.MessageDigest md;
+
+ @Override
+ public void setup() {
+ try {
+ md = java.security.MessageDigest.getInstance("MD5");
+ } catch (Exception e) {
+ logger.debug(e.getMessage());
+ }
+ }
+
+ @Override
+ public void eval() {
+
+ String input =
org.apache.drill.exec.expr.fn.impl.StringFunctionHelpers.toStringFromUTF8(rawInput.start,
rawInput.end, rawInput.buffer);
+ byte[] thedigest = null;
+ String outputString = "";
+
+ try {
+ byte[] bytesOfMessage = input.getBytes("UTF-8");
+ thedigest = md.digest(bytesOfMessage);
+ outputString = String.format("%032X", new java.math.BigInteger(1,
thedigest));
+ outputString = outputString.toLowerCase();
+
+ } catch (Exception e) {
+ logger.debug(e.getMessage());
+ }
+ out.buffer = buffer;
+ out.start = 0;
+ out.end = outputString.getBytes().length;
+ buffer.setBytes(0, outputString.getBytes());
+ }
+
+ }
+
+
+ @FunctionTemplate(names = {"sha", "sha1"}, scope =
FunctionTemplate.FunctionScope.SIMPLE, nulls =
FunctionTemplate.NullHandling.NULL_IF_NULL)
+ public static class SHA1Function implements DrillSimpleFunc {
+
+ @Param
+ VarCharHolder rawInput;
+
+ @Output
+ VarCharHolder out;
+
+ @Inject
+ DrillBuf buffer;
+
+ @Override
+ public void setup() {
+
+ }
+
+ @Override
+ public void eval() {
+
+ String input =
org.apache.drill.exec.expr.fn.impl.StringFunctionHelpers.toStringFromUTF8(rawInput.start,
rawInput.end, rawInput.buffer);
+
+ String sha1 =
org.apache.commons.codec.digest.DigestUtils.sha1Hex(input);
+
+ out.buffer = buffer;
+ out.start = 0;
+ out.end = sha1.getBytes().length;
+ buffer.setBytes(0, sha1.getBytes());
+ }
+
+ }
+
+ @FunctionTemplate(names = {"sha256", "sha2"}, scope =
FunctionTemplate.FunctionScope.SIMPLE, nulls =
FunctionTemplate.NullHandling.NULL_IF_NULL)
+ public static class SHA256Function implements DrillSimpleFunc {
+
+ @Param
+ VarCharHolder rawInput;
+
+ @Output
+ VarCharHolder out;
+
+ @Inject
+ DrillBuf buffer;
+
+
+ @Override
+ public void setup() {
+
+ }
+
+ @Override
+ public void eval() {
+
+ String input =
org.apache.drill.exec.expr.fn.impl.StringFunctionHelpers.toStringFromUTF8(rawInput.start,
rawInput.end, rawInput.buffer);
+
+ String sha2 =
org.apache.commons.codec.digest.DigestUtils.sha256Hex(input);
+
+ out.buffer = buffer;
+ out.start = 0;
+ out.end = sha2.getBytes().length;
+ buffer.setBytes(0, sha2.getBytes());
+ }
+
+ }
+
+ @FunctionTemplate(name = "sha384", scope =
FunctionTemplate.FunctionScope.SIMPLE, nulls =
FunctionTemplate.NullHandling.NULL_IF_NULL)
+ public static class SHA384Function implements DrillSimpleFunc {
+
+ @Param
+ VarCharHolder rawInput;
+
+ @Output
+ VarCharHolder out;
+
+ @Inject
+ DrillBuf buffer;
+
+ @Override
+ public void setup() {
+
+ }
+
+ @Override
+ public void eval() {
+
+ String input =
org.apache.drill.exec.expr.fn.impl.StringFunctionHelpers.toStringFromUTF8(rawInput.start,
rawInput.end, rawInput.buffer);
+
+ String sha384 =
org.apache.commons.codec.digest.DigestUtils.sha384Hex(input);
+
+ out.buffer = buffer;
+ out.start = 0;
+ out.end = sha384.getBytes().length;
+ buffer.setBytes(0, sha384.getBytes());
+ }
+
+ }
+
+ @FunctionTemplate(name = "sha512", scope =
FunctionTemplate.FunctionScope.SIMPLE, nulls =
FunctionTemplate.NullHandling.NULL_IF_NULL)
+ public static class SHA512Function implements DrillSimpleFunc {
+
+ @Param
+ VarCharHolder rawInput;
+
+ @Output
+ VarCharHolder out;
+
+ @Inject
+ DrillBuf buffer;
+
+ @Override
+ public void setup() {
+
+ }
+
+ @Override
+ public void eval() {
+
+ String input =
org.apache.drill.exec.expr.fn.impl.StringFunctionHelpers.toStringFromUTF8(rawInput.start,
rawInput.end, rawInput.buffer);
+
+ String sha512 =
org.apache.commons.codec.digest.DigestUtils.sha512Hex(input);
+
+ out.buffer = buffer;
+ out.start = 0;
+ out.end = sha512.getBytes().length;
+ buffer.setBytes(0, sha512.getBytes());
+ }
+
+ }
+
+ @FunctionTemplate(name = "aes_encrypt", scope =
FunctionTemplate.FunctionScope.SIMPLE, nulls =
FunctionTemplate.NullHandling.NULL_IF_NULL)
+ public static class AESEncryptFunction implements DrillSimpleFunc {
+
+ @Param
+ VarCharHolder rawInput;
+
+ @Param
+ VarCharHolder rawKey;
+
+ @Output
+ VarCharHolder out;
+
+ @Inject
+ DrillBuf buffer;
+
+ @Workspace
+ String key;
+
+ @Workspace
+ SecretKeySpec secretKey;
+
+ @Workspace
+ byte[] keyByteArray;
--- End diff --
Fixed in latest revision.
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