mirror of https://github.com/apache/nifi.git
Merge pull request #4031 from jfrazee/NIFI-6791
NIFI-6791 Add UUID3 and UUID5 functions to Expression Language
This commit is contained in:
Mike
GitHub
commit
62c34d7e23
9
NOTICE
9
NOTICE
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@ -113,6 +113,15 @@ This includes derived works from Dropwizard Metrics available under Apache Softw
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nifi-commons/nifi-metrics/src/main/java/org/apache/nifi/metrics/jvm/JvmMetrics.java
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nifi-commons/nifi-metrics/src/main/java/org/apache/nifi/metrics/jvm/JmxJvmMetrics.java
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This product includes derived works from Apache Commons Id (ASLv2 licensed)
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Copyright 2003-2006 The Apache Software Foundation
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The derived work is adapted from
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http://svn.apache.org/repos/asf/commons/sandbox/id/trunk/src/java/org/apache/commons/id/uuid/UUID.java
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and can be found in
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nifi-commons/nifi-expression-language/src/main/java/org/apache/nifi/attribute/expression/language/evaluation/functions/Uuid3Evaluator.java
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and
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nifi-commons/nifi-expression-language/src/main/java/org/apache/nifi/attribute/expression/language/evaluation/functions/Uuid5Evaluator.java
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This includes derived works from Cloudera Schema Registry available under Apache Software License V2 (https://github.com/hortonworks/registry)
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Cloudera Schema Registry
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Copyright 2016-2019 Cloudera, Inc.
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@ -81,7 +81,7 @@ outlined by the documentation.
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- Generally, when using ANTLR, the preferred method to parse the input is to use a Tree Walker. However, this is far less intuitive for many
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Java developers (including those of us who wrote the Expression Language originally). As a result, we instead use ANTLR to tokenize and parse the
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input and then obtain an Abstract Syntax Tree and process this "manually" in Java code. This occurs in the Query class.
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- We can add the function into our parsing logic by updating the #buildFunctionEvaluator method of the org.apache.nifi.attribute.expression.language.Query class.
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- We can add the function into our parsing logic by updating the #buildFunctionEvaluator method of the org.apache.nifi.attribute.expression.compile.ExpressionCompiler class.
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A static import will likely need to be added to the Query class in order to reference the new token. The token can then be added to the existing
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'case' statement, which will return a new instance of the Evaluator that was just added.
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@ -102,4 +102,3 @@ outlined by the documentation.
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will require a Subject. In order to see the function, then, you will need to provide a subject, such as typing "${myVariable:" (without the quotes)
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and then press Ctrl+Space. This step is important, as it is quite easy to make a mistake when creating the documentation using a free-form text editor,
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and this will ensure that users receive a very consistent and quality experience when using the new function.
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@ -93,5 +93,15 @@
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<artifactId>commons-text</artifactId>
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<version>1.8</version>
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</dependency>
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<dependency>
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<groupId>org.apache.commons</groupId>
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<artifactId>commons-lang3</artifactId>
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<version>3.9</version>
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</dependency>
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<dependency>
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<groupId>commons-codec</groupId>
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<artifactId>commons-codec</artifactId>
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<version>1.14</version>
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</dependency>
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</dependencies>
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</project>
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@ -183,6 +183,8 @@ TO_LITERAL : 'literal';
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JSON_PATH : 'jsonPath';
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JSON_PATH_DELETE : 'jsonPathDelete';
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REPEAT : 'repeat';
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UUID3 : 'UUID3';
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UUID5 : 'UUID5';
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// 2 arg functions
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SUBSTRING : 'substring';
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@ -76,7 +76,7 @@ tokens {
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// functions that return Strings
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zeroArgString : (TO_UPPER | TO_LOWER | TRIM | TO_STRING | URL_ENCODE | URL_DECODE | BASE64_ENCODE | BASE64_DECODE | ESCAPE_JSON | ESCAPE_XML | ESCAPE_CSV | ESCAPE_HTML3 | ESCAPE_HTML4 | UNESCAPE_JSON | UNESCAPE_XML | UNESCAPE_CSV | UNESCAPE_HTML3 | UNESCAPE_HTML4 | EVALUATE_EL_STRING) LPAREN! RPAREN!;
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oneArgString : ((SUBSTRING_BEFORE | SUBSTRING_BEFORE_LAST | SUBSTRING_AFTER | SUBSTRING_AFTER_LAST | REPLACE_NULL | REPLACE_EMPTY |
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PREPEND | APPEND | STARTS_WITH | ENDS_WITH | CONTAINS | JOIN | JSON_PATH | JSON_PATH_DELETE | FROM_RADIX) LPAREN! anyArg RPAREN!) |
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PREPEND | APPEND | STARTS_WITH | ENDS_WITH | CONTAINS | JOIN | JSON_PATH | JSON_PATH_DELETE | FROM_RADIX | UUID3 | UUID5) LPAREN! anyArg RPAREN!) |
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(TO_RADIX LPAREN! anyArg (COMMA! anyArg)? RPAREN!);
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twoArgString : ((REPLACE | REPLACE_FIRST | REPLACE_ALL | IF_ELSE | JSON_PATH_SET | JSON_PATH_ADD) LPAREN! anyArg COMMA! anyArg RPAREN!) |
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((SUBSTRING | FORMAT | PAD_LEFT | PAD_RIGHT | REPEAT) LPAREN! anyArg (COMMA! anyArg)? RPAREN!);
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@ -112,6 +112,8 @@ import org.apache.nifi.attribute.expression.language.evaluation.functions.TrimEv
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import org.apache.nifi.attribute.expression.language.evaluation.functions.UrlDecodeEvaluator;
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import org.apache.nifi.attribute.expression.language.evaluation.functions.UrlEncodeEvaluator;
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import org.apache.nifi.attribute.expression.language.evaluation.functions.UuidEvaluator;
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import org.apache.nifi.attribute.expression.language.evaluation.functions.Uuid3Evaluator;
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import org.apache.nifi.attribute.expression.language.evaluation.functions.Uuid5Evaluator;
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import org.apache.nifi.attribute.expression.language.evaluation.literals.BooleanLiteralEvaluator;
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import org.apache.nifi.attribute.expression.language.evaluation.literals.DecimalLiteralEvaluator;
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import org.apache.nifi.attribute.expression.language.evaluation.literals.StringLiteralEvaluator;
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@ -241,6 +243,8 @@ import static org.apache.nifi.attribute.expression.language.antlr.AttributeExpre
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import static org.apache.nifi.attribute.expression.language.antlr.AttributeExpressionParser.URL_DECODE;
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import static org.apache.nifi.attribute.expression.language.antlr.AttributeExpressionParser.URL_ENCODE;
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import static org.apache.nifi.attribute.expression.language.antlr.AttributeExpressionParser.UUID;
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import static org.apache.nifi.attribute.expression.language.antlr.AttributeExpressionParser.UUID3;
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import static org.apache.nifi.attribute.expression.language.antlr.AttributeExpressionParser.UUID5;
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import static org.apache.nifi.attribute.expression.language.antlr.AttributeExpressionParser.WHOLE_NUMBER;
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import static org.apache.nifi.attribute.expression.language.antlr.AttributeExpressionParser.EVALUATE_EL_STRING;
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@ -1001,12 +1005,21 @@ public class ExpressionCompiler {
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Evaluator<?> argKeyEvaluator = argEvaluators.get(2);
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String keyLocation = "third argument to jsonPathPut";
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Evaluator<?> keyEvaluator = getJsonPathUpdateEvaluator(argKeyEvaluator, keyLocation);
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return addToken(new JsonPathPutEvaluator(toStringEvaluator(subjectEvaluator),
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toStringEvaluator(argEvaluators.get(0), "first argument to jsonPathPut"),
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toStringEvaluator(keyEvaluator, keyLocation),
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valueEvaluator), "jsonPathPut");
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}
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case UUID3: {
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verifyArgCount(argEvaluators, 1, "UUID3");
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return addToken(new Uuid3Evaluator(toStringEvaluator(subjectEvaluator),
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toStringEvaluator(argEvaluators.get(0), "first argument to UUID3")), "UUID3");
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}
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case UUID5: {
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verifyArgCount(argEvaluators, 1, "UUID5");
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return addToken(new Uuid5Evaluator(toStringEvaluator(subjectEvaluator),
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toStringEvaluator(argEvaluators.get(0), "first argument to UUID5")), "UUID5");
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}
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case IF_ELSE: {
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verifyArgCount(argEvaluators, 2, "ifElse");
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return addToken(new IfElseEvaluator(toBooleanEvaluator(subjectEvaluator),
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@ -0,0 +1,66 @@
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/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.nifi.attribute.expression.language.evaluation.functions;
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import org.apache.nifi.attribute.expression.language.EvaluationContext;
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import org.apache.nifi.attribute.expression.language.evaluation.Evaluator;
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import org.apache.nifi.attribute.expression.language.evaluation.QueryResult;
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import org.apache.nifi.attribute.expression.language.evaluation.StringEvaluator;
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import org.apache.nifi.attribute.expression.language.evaluation.StringQueryResult;
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import java.nio.ByteBuffer;
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import java.util.UUID;
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import org.apache.commons.lang3.ArrayUtils;
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public class Uuid3Evaluator extends StringEvaluator {
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private final Evaluator<String> subject;
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private final Evaluator<String> namespace;
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public Uuid3Evaluator(final Evaluator<String> subject, final Evaluator<String> namespace) {
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this.subject = subject;
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this.namespace = namespace;
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}
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@Override
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public QueryResult<String> evaluate(final EvaluationContext evaluationContext) {
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final String subjectValue = subject.evaluate(evaluationContext).getValue();
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if (subjectValue == null) {
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return new StringQueryResult(null);
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}
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final String nsValue = namespace.evaluate(evaluationContext).getValue();
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final UUID nsUUID = nsValue == null ? new UUID(0, 0) : UUID.fromString(nsValue);
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final byte[] nsBytes =
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ByteBuffer.wrap(new byte[16])
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.putLong(nsUUID.getMostSignificantBits())
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.putLong(nsUUID.getLeastSignificantBits())
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.array();
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final byte[] subjectBytes = subjectValue.getBytes();
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final byte[] nameBytes = ArrayUtils.addAll(nsBytes, subjectBytes);
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return new StringQueryResult(UUID.nameUUIDFromBytes(nameBytes).toString());
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}
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@Override
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public Evaluator<?> getSubjectEvaluator() {
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return subject;
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}
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}
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@ -0,0 +1,98 @@
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/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.nifi.attribute.expression.language.evaluation.functions;
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import org.apache.nifi.attribute.expression.language.EvaluationContext;
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import org.apache.nifi.attribute.expression.language.evaluation.Evaluator;
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import org.apache.nifi.attribute.expression.language.evaluation.QueryResult;
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import org.apache.nifi.attribute.expression.language.evaluation.StringEvaluator;
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import org.apache.nifi.attribute.expression.language.evaluation.StringQueryResult;
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import java.nio.ByteBuffer;
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import java.util.Arrays;
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import java.util.Objects;
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import java.util.UUID;
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import org.apache.commons.lang3.ArrayUtils;
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import org.apache.commons.codec.binary.Hex;
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import org.apache.commons.codec.digest.DigestUtils;
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// This is based on an unreleased implementation in Apache Commons Id. See http://svn.apache.org/repos/asf/commons/sandbox/id/trunk/src/java/org/apache/commons/id/uuid/UUID.java
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public class Uuid5Evaluator extends StringEvaluator {
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private final Evaluator<String> subject;
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private final Evaluator<String> namespace;
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public Uuid5Evaluator(final Evaluator<String> subject, final Evaluator<String> namespace) {
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this.subject = subject;
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this.namespace = namespace;
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}
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@Override
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public QueryResult<String> evaluate(final EvaluationContext evaluationContext) {
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final String subjectValue = subject.evaluate(evaluationContext).getValue();
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if (subjectValue == null) {
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return new StringQueryResult(null);
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}
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final String nsValue = namespace.evaluate(evaluationContext).getValue();
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final UUID nsUUID = nsValue == null ? new UUID(0, 0) : UUID.fromString(nsValue);
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final byte[] nsBytes =
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ByteBuffer.wrap(new byte[16])
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.putLong(nsUUID.getMostSignificantBits())
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.putLong(nsUUID.getLeastSignificantBits())
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.array();
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final byte[] subjectBytes = subjectValue.getBytes();
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final byte[] nameBytes = ArrayUtils.addAll(nsBytes, subjectBytes);
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final byte[] nameHash = DigestUtils.sha1(nameBytes);
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final byte[] uuidBytes = Arrays.copyOf(nameHash, 16);
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uuidBytes[6] &= 0x0F;
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uuidBytes[6] |= 0x50;
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uuidBytes[8] &= 0x3f;
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uuidBytes[8] |= 0x80;
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return new StringQueryResult(toString(uuidBytes));
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}
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@Override
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public Evaluator<?> getSubjectEvaluator() {
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return subject;
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}
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private static String toString(final byte[] uuid) {
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if (uuid == null) {
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return new UUID(0, 0).toString();
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}
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final String encoded = Hex.encodeHexString(Objects.requireNonNull(uuid));
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final StringBuffer sb = new StringBuffer(encoded);
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while (sb.length() != 32) {
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sb.insert(0, "0");
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}
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sb.ensureCapacity(32);
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sb.insert(8, '-');
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sb.insert(13, '-');
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sb.insert(18, '-');
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sb.insert(23, '-');
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return sb.toString();
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}
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}
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@ -89,6 +89,10 @@ public class TestQuery {
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assertInvalid("${attr:indexOf(length())}");
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assertValid("${UUID()}");
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assertInvalid("${UUID():nextInt()}");
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assertValid("${attr:UUID3('94c09378-43a6-11ea-8bcc-acde48001122')}");
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assertValid("${attr:UUID5('94c09378-43a6-11ea-8bcc-acde48001122')}");
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assertInvalid("${UUID3('94c09378-43a6-11ea-8bcc-acde48001122', attr)}");
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assertInvalid("${UUID5('94c09378-43a6-11ea-8bcc-acde48001122', attr)}");
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assertValid("${nextInt()}");
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assertValid("${now():format('yyyy/MM/dd')}");
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assertInvalid("${attr:times(3)}");
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@ -2137,6 +2141,58 @@ public class TestQuery {
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}
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}
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@Test
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public void testUuidsWithNamespace() {
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// Testing a lot of cases here b/c it's a custom UUID3/5 implementation
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final Map<String, String> attributes = new HashMap<>();
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attributes.put("myattr0", "u5IkOYFFvYioYBJSNI2XNjPaVoRjXYnr");
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attributes.put("myattr1", "mSDgSKQrY67QCTPatV5qHrZa4oUQ2wEX");
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attributes.put("myattr2", "u6jH7pF8iAqwjr42i3r5DubdNcgwqEaX");
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attributes.put("myattr3", "9eDG1KbqvHrtIMSmvH44t0K7fHXs7xtz");
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attributes.put("myattr4", "QeAUDsMYoHJHLsy1BPPSmQWKhCKvwEpj");
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attributes.put("myattr5", "U5Cw4b79SW1YiB5Va3DfUMI9y4iJwnVS");
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attributes.put("myattr6", "Ig51Jl3EtwaKlVo9MnDSDdJSlXMgZ1It");
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attributes.put("myattr7", "F2iLLLHXgliEpIDwJ4JcqeWBVi70cHS6");
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attributes.put("myattr8", "1BFShkKLOcjwn1GMsyO4Fmb0iNTVt2Tf");
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attributes.put("myattr9", "WxiyO8Gzw0jQnBlYeZMcdNTwCWJe5MNg");
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attributes.put("myattr10", null);
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// Version 3s
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verifyEquals("${myattr0:UUID3('b9e81de3-7047-4b5e-a822-8fff5b49f808')}", attributes, "7ab88cc4-7748-3214-812a-1bc4500a911a");
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verifyEquals("${myattr1:UUID3('341857cc-c5f3-4f76-b336-169f81e9dc7a')}", attributes, "d788c2df-95e1-33aa-a548-9be42f222909");
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verifyEquals("${myattr2:UUID3('27e35966-52c9-48ba-bc91-3894a2f164d8')}", attributes, "e960f7af-5eec-3298-8512-e3933836bd5a");
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verifyEquals("${myattr3:UUID3('1aef683a-2c0b-4f0e-9287-792361873e8f')}", attributes, "bf1727d8-93d3-3550-9071-78c8686f30c3");
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verifyEquals("${myattr4:UUID3('5f15efac-e274-42b1-8d0f-15c2c97acb7d')}", attributes, "9e68a780-090d-30a9-903c-22cf7eb5c511");
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verifyEquals("${myattr5:UUID3('ebd71811-fd78-4929-856b-4cec7a38d666')}", attributes, "a2a4b1b5-d93f-3656-be0d-f1db281060c1");
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verifyEquals("${myattr6:UUID3('7b1bce89-f12b-4b56-afb8-f9b0a1334926')}", attributes, "8eea2153-d42e-3f63-892c-33ff7f0be389");
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verifyEquals("${myattr7:UUID3('fe085c56-95e2-4cf8-8612-ba878ed35f0b')}", attributes, "3cd6470f-5432-3599-82ce-1f2b22adcec6");
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verifyEquals("${myattr8:UUID3('2be146a5-f54e-4ca1-a10d-d219e9fc6c6f')}", attributes, "c3ed8ced-b32f-39da-a7ea-75934f419446");
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verifyEquals("${myattr9:UUID3('4939d5dd-51c1-4d0e-badd-77fa7c7eebc1')}", attributes, "6507198b-f565-3196-9123-6f946f8c53bc");
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verifyEmpty("${myattr10:UUID3('4939d5dd-51c1-4d0e-badd-77fa7c7eebc1')}", attributes);
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verifyEmpty("${myattr11:UUID3('4939d5dd-51c1-4d0e-badd-77fa7c7eebc1')}", attributes);
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verifyEquals("${myattr9:UUID3(${myattr11})}", attributes, "f2d25da2-cc06-34de-80a3-cf64aff82020");
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// Version 5s
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verifyEquals("${myattr0:UUID5('245b55a8-397d-4480-a41e-16603c8cf9ad')}", attributes, "74f6dc12-6d84-500c-9583-e9fed79912ea");
|
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verifyEquals("${myattr1:UUID5('45089bfa-f5eb-40e3-bc02-4270ccb8ef34')}", attributes, "7b197702-0ed0-5494-9f61-417e26010308");
|
||||
verifyEquals("${myattr2:UUID5('49861367-c791-4d6d-987e-fe994b2ee4b7')}", attributes, "7b38b455-a0d6-53bd-a0fa-d0f3bf4e7399");
|
||||
verifyEquals("${myattr3:UUID5('1142b2d9-e434-4931-b1a5-6dbf363aa9cf')}", attributes, "cd13422e-b030-547b-807b-a868e9282eab");
|
||||
verifyEquals("${myattr4:UUID5('967190d3-b4ba-4ef3-a8e6-3b8bf2d3f1d8')}", attributes, "e4f1ef89-0d25-55cd-bc4b-1904813c3137");
|
||||
verifyEquals("${myattr5:UUID5('2942f01d-82df-40ee-b1fd-476542160b7c')}", attributes, "a0415b30-5ef9-5530-93a2-fd20f4262d68");
|
||||
verifyEquals("${myattr6:UUID5('3a47c04b-7cea-4c95-a379-018e64c701c5')}", attributes, "e1931aad-30e8-5283-8505-394f0d08b181");
|
||||
verifyEquals("${myattr7:UUID5('6f78ce33-4186-46c0-ae05-15f8c78024cf')}", attributes, "a5c80e26-88d6-5de9-9234-66a050f4d940");
|
||||
verifyEquals("${myattr8:UUID5('b85962a8-6614-49f4-8fdd-a984cf35144e')}", attributes, "6e33ce29-d3f0-59ee-a864-c05ec4d4300d");
|
||||
verifyEquals("${myattr9:UUID5('5b6da974-4eca-4c17-bbd2-3b59a1b40bee')}", attributes, "2e2e846c-1cbc-54b2-96f7-5a66d246126f");
|
||||
verifyEmpty("${myattr10:UUID5('4939d5dd-51c1-4d0e-badd-77fa7c7eebc1')}", attributes);
|
||||
verifyEmpty("${myattr11:UUID5('4939d5dd-51c1-4d0e-badd-77fa7c7eebc1')}", attributes);
|
||||
verifyEquals("${myattr9:UUID5(${myattr11})}", attributes, "0231a7bf-7bbe-5a0c-8bbd-9c7bc2e95071");
|
||||
|
||||
// Make sure it works using the UUID() expression for the namespace
|
||||
verifyEquals("${myattr0:UUID3(${UUID()}):length()}", attributes, 36L);
|
||||
verifyEquals("${myattr0:UUID5(${UUID()}):length()}", attributes, 36L);
|
||||
}
|
||||
|
||||
private void verifyEquals(final String expression, final Map<String, String> attributes, final Object expectedResult) {
|
||||
verifyEquals(expression,attributes, null, ParameterLookup.EMPTY, expectedResult);
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1426,6 +1426,44 @@ Each of the following functions will encode a string according the rules of the
|
|||
|
||||
|
||||
|
||||
[.function]
|
||||
=== UUID3
|
||||
|
||||
*Description*: [.description]#Returns a type 3 (MD5 hashed) namespace name-based UUID.#
|
||||
|
||||
*Subject Type*: [.subject]#String#
|
||||
|
||||
*Arguments*:
|
||||
|
||||
- [.argName]#_namespace_# : [.argDesc]#The namespace UUID identifier#
|
||||
|
||||
*Return Type*: [.returnType]#String#
|
||||
|
||||
*Examples*: ${attr:UUID3('b9e81de3-7047-4b5e-a822-8fff5b49f808')} returns a value similar to 7ab88cc4-7748-3214-812a-1bc4500a911a
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
[.function]
|
||||
=== UUID5
|
||||
|
||||
*Description*: [.description]#Returns a type 5 (SHA-1 hashed) namespace name-based UUID.#
|
||||
|
||||
*Subject Type*: [.subject]#String#
|
||||
|
||||
*Arguments*:
|
||||
|
||||
- [.argName]#_namespace_# : [.argDesc]#The namespace UUID identifier#
|
||||
|
||||
*Return Type*: [.returnType]#String#
|
||||
|
||||
*Examples*: ${attr:UUID5('245b55a8-397d-4480-a41e-16603c8cf9ad')} returns a value similar to 6448f0c0-fd2b-30ad-b05a-deb456f8b060
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
[[searching]]
|
||||
== Searching
|
||||
|
||||
|
|
@ -2330,7 +2368,7 @@ an error when validating the function.
|
|||
[.function]
|
||||
=== UUID
|
||||
|
||||
*Description*: [.description]#Returns a randomly generated UUID.#
|
||||
*Description*: [.description]#Returns a randomly generated type 4 UUID.#
|
||||
|
||||
*Subject Type*: [.subjectless]#No Subject#
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue