From bef4bf27973c235de05422a62154ec43417688eb Mon Sep 17 00:00:00 2001
From: kaixiliu <liukaixi@chinamobile.com>
Date: Thu, 25 Jul 2024 17:52:00 +0800
Subject: intent adds checkstyle configuration

Issue-ID: USECASEUI-839
Change-Id: I6cff70ca761d814c2ded1a42f5264c75a93a67cb
Signed-off-by: kaixiliu <liukaixi@chinamobile.com>
---
 checkstyle/pom.xml                                 |  20 ++
 .../onap-checkstyle/apache-license-2.regexp.txt    |  15 +
 .../resources/onap-checkstyle/check-license.xml    |  35 +++
 .../resources/onap-checkstyle/onap-java-style.xml  | 338 +++++++++++++++++++++
 intentanalysis/pom.xml                             |  58 ++++
 pom.xml                                            |   1 +
 6 files changed, 467 insertions(+)
 create mode 100644 checkstyle/pom.xml
 create mode 100644 checkstyle/src/main/resources/onap-checkstyle/apache-license-2.regexp.txt
 create mode 100644 checkstyle/src/main/resources/onap-checkstyle/check-license.xml
 create mode 100644 checkstyle/src/main/resources/onap-checkstyle/onap-java-style.xml

diff --git a/checkstyle/pom.xml b/checkstyle/pom.xml
new file mode 100644
index 0000000..800fe43
--- /dev/null
+++ b/checkstyle/pom.xml
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>org.onap.usecase-ui.intent-analysis</groupId>
+        <artifactId>usecase-ui-intent-analysis-parent</artifactId>
+        <version>14.0.0-SNAPSHOT</version>
+    </parent>
+    <groupId>org.onap.usecase-ui.intent-analysis</groupId>
+    <artifactId>checkstyle</artifactId>
+
+    <properties>
+        <maven.compiler.source>17</maven.compiler.source>
+        <maven.compiler.target>17</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+</project>
\ No newline at end of file
diff --git a/checkstyle/src/main/resources/onap-checkstyle/apache-license-2.regexp.txt b/checkstyle/src/main/resources/onap-checkstyle/apache-license-2.regexp.txt
new file mode 100644
index 0000000..5b69f28
--- /dev/null
+++ b/checkstyle/src/main/resources/onap-checkstyle/apache-license-2.regexp.txt
@@ -0,0 +1,15 @@
+^/[*]+$
+^ \* Copyright .*$
+^ \*( )?$
+^ \* Licensed 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.
+^ [*]+/$
diff --git a/checkstyle/src/main/resources/onap-checkstyle/check-license.xml b/checkstyle/src/main/resources/onap-checkstyle/check-license.xml
new file mode 100644
index 0000000..8421f52
--- /dev/null
+++ b/checkstyle/src/main/resources/onap-checkstyle/check-license.xml
@@ -0,0 +1,35 @@
+<?xml version="1.0"?>
+<!--
+   Copyright (c) 2016-2017 Huawei Technologies Co., Ltd.
+   Modifications Copyright (C) 2024 Nordix Foundation.
+
+   Licensed 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.
+-->
+<!DOCTYPE module PUBLIC
+          "-//Puppy Crawl//DTD Check Configuration 1.3//EN"
+          "http://www.puppycrawl.com/dtds/configuration_1_3.dtd">
+<!-- Checks the license headers expected by ONAP. -->
+<module name="Checker">
+  <property name="charset" value="UTF-8"/>
+  <property name="severity" value="error"/>
+  <module name="RegexpSingleline">
+    <property name="format" value="under the Apache License, Version 2\.0"/>
+    <property name="minimum" value="1"/>
+    <property name="maximum" value="10"/>
+  </module>
+  <module name="RegexpSingleline">
+    <property name="format" value="http://www.apache\.org/licenses/LICENSE-2\.0"/>
+    <property name="minimum" value="1"/>
+    <property name="maximum" value="10"/>
+  </module>
+</module>
diff --git a/checkstyle/src/main/resources/onap-checkstyle/onap-java-style.xml b/checkstyle/src/main/resources/onap-checkstyle/onap-java-style.xml
new file mode 100644
index 0000000..3de8f61
--- /dev/null
+++ b/checkstyle/src/main/resources/onap-checkstyle/onap-java-style.xml
@@ -0,0 +1,338 @@
+<?xml version="1.0"?>
+<!--
+   Copyright (c) 2016 Huawei Technologies Co., Ltd.
+   Modifications Copyright (C) 2019-2020, 2024 Nordix Foundation.
+
+   Licensed 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.
+-->
+<!DOCTYPE module PUBLIC
+          "-//Checkstyle//DTD Checkstyle Configuration 1.3//EN"
+          "https://checkstyle.org/dtds/configuration_1_3.dtd">
+
+<!--
+    Checkstyle configuration that checks the Google coding conventions from Google Java Style
+    that can be found at https://google.github.io/styleguide/javaguide.html
+
+    Checkstyle is very configurable. Be sure to read the documentation at
+    http://checkstyle.org (or in your downloaded distribution).
+
+    To completely disable a check, just comment it out or delete it from the file.
+    To suppress certain violations please review suppression filters.
+
+    Authors: Max Vetrenko, Ruslan Diachenko, Roman Ivanov.
+ -->
+
+ <!--
+ To update the checkstyle version in ONAP see:
+ https://wiki.onap.org/display/DW/How+to+update+ONAP+checkstyle+when+Checkstyle+steps+their+version
+  -->
+
+<module name="Checker">
+    <property name="charset" value="UTF-8" />
+
+    <property name="severity" value="warning" />
+
+    <property name="fileExtensions" value="java, properties, xml" />
+    <!-- Excludes all 'module-info.java' files              -->
+    <!-- See https://checkstyle.org/config_filefilters.html -->
+    <module name="BeforeExecutionExclusionFileFilter">
+        <property name="fileNamePattern" value="module\-info\.java$" />
+    </module>
+    <!-- https://checkstyle.org/config_filters.html#SuppressionFilter -->
+    <module name="SuppressionFilter">
+        <property name="file" value="${org.checkstyle.google.suppressionfilter.config}"
+            default="checkstyle-suppressions.xml" />
+        <property name="optional" value="true" />
+    </module>
+    <module name="SuppressWarningsFilter"/>
+
+    <!-- Checks for whitespace                               -->
+    <!-- See http://checkstyle.org/config_whitespace.html -->
+    <module name="FileTabCharacter">
+        <property name="eachLine" value="true" />
+    </module>
+
+    <module name="LineLength">
+        <property name="fileExtensions" value="java" />
+        <property name="max" value="120" />
+        <property name="ignorePattern" value="^package.*|^import.*|a href|href|http://|https://|ftp://" />
+    </module>
+
+    <module name="TreeWalker">
+        <module name="OuterTypeFilename" />
+        <module name="IllegalTokenText">
+            <property name="tokens" value="STRING_LITERAL, CHAR_LITERAL" />
+            <property name="format"
+                value="\\u00(09|0(a|A)|0(c|C)|0(d|D)|22|27|5(C|c))|\\(0(10|11|12|14|15|42|47)|134)" />
+            <property name="message"
+                value="Consider using special escape sequence instead of octal value or Unicode escaped value." />
+        </module>
+        <module name="AvoidEscapedUnicodeCharacters">
+            <property name="allowEscapesForControlCharacters" value="true" />
+            <property name="allowByTailComment" value="true" />
+            <property name="allowNonPrintableEscapes" value="true" />
+        </module>
+        <module name="AvoidStarImport" />
+        <module name="OneTopLevelClass" />
+        <module name="NoLineWrap">
+            <property name="tokens" value="PACKAGE_DEF, IMPORT, STATIC_IMPORT" />
+        </module>
+        <module name="EmptyBlock">
+            <property name="option" value="TEXT" />
+            <property name="tokens"
+                value="LITERAL_TRY, LITERAL_FINALLY, LITERAL_IF, LITERAL_ELSE, LITERAL_SWITCH" />
+        </module>
+        <module name="NeedBraces">
+            <property name="tokens" value="LITERAL_DO, LITERAL_ELSE, LITERAL_FOR, LITERAL_IF, LITERAL_WHILE" />
+        </module>
+        <module name="LeftCurly">
+            <property name="tokens"
+                value="ANNOTATION_DEF, CLASS_DEF, CTOR_DEF, ENUM_CONSTANT_DEF, ENUM_DEF,
+                    INTERFACE_DEF, LAMBDA, LITERAL_CASE, LITERAL_CATCH, LITERAL_DEFAULT,
+                    LITERAL_DO, LITERAL_ELSE, LITERAL_FINALLY, LITERAL_FOR, LITERAL_IF,
+                    LITERAL_SWITCH, LITERAL_SYNCHRONIZED, LITERAL_TRY, LITERAL_WHILE, METHOD_DEF,
+                    OBJBLOCK, STATIC_INIT" />
+        </module>
+        <module name="RightCurly">
+            <property name="id" value="RightCurlySame" />
+            <property name="tokens"
+                value="LITERAL_TRY, LITERAL_CATCH, LITERAL_FINALLY, LITERAL_IF, LITERAL_ELSE,
+                    LITERAL_DO" />
+        </module>
+        <module name="RightCurly">
+            <property name="id" value="RightCurlyAlone" />
+            <property name="option" value="alone" />
+            <property name="tokens"
+                value="CLASS_DEF, METHOD_DEF, CTOR_DEF, LITERAL_FOR, LITERAL_WHILE, STATIC_INIT,
+                    INSTANCE_INIT, ANNOTATION_DEF, ENUM_DEF" />
+        </module>
+        <module name="SuppressionXpathSingleFilter">
+          <!-- suppression is required till https://github.com/checkstyle/checkstyle/issues/7541 -->
+            <property name="id" value="RightCurlyAlone" />
+            <property name="query"
+                value="//RCURLY[parent::SLIST[count(./*)=1]
+                                                 or preceding-sibling::*[last()][self::LCURLY]]" />
+        </module>
+        <module name="WhitespaceAfter">
+            <property name="tokens"
+                value="COMMA, SEMI, TYPECAST, LITERAL_IF, LITERAL_ELSE,
+                    LITERAL_WHILE, LITERAL_DO, LITERAL_FOR, DO_WHILE" />
+        </module>
+        <module name="WhitespaceAround">
+            <property name="allowEmptyConstructors" value="true" />
+            <property name="allowEmptyLambdas" value="true" />
+            <property name="allowEmptyMethods" value="true" />
+            <property name="allowEmptyTypes" value="true" />
+            <property name="allowEmptyLoops" value="true" />
+            <property name="tokens"
+                value="ASSIGN, BAND, BAND_ASSIGN, BOR, BOR_ASSIGN, BSR, BSR_ASSIGN, BXOR,
+                    BXOR_ASSIGN, COLON, DIV, DIV_ASSIGN, DO_WHILE, EQUAL, GE, GT, LAMBDA, LAND,
+                    LCURLY, LE, LITERAL_CATCH, LITERAL_DO, LITERAL_ELSE, LITERAL_FINALLY,
+                    LITERAL_FOR, LITERAL_IF, LITERAL_RETURN, LITERAL_SWITCH, LITERAL_SYNCHRONIZED,
+                     LITERAL_TRY, LITERAL_WHILE, LOR, LT, MINUS, MINUS_ASSIGN, MOD, MOD_ASSIGN,
+                     NOT_EQUAL, PLUS, PLUS_ASSIGN, QUESTION, RCURLY, SL, SLIST, SL_ASSIGN, SR,
+                     SR_ASSIGN, STAR, STAR_ASSIGN, LITERAL_ASSERT, TYPE_EXTENSION_AND" />
+            <message key="ws.notFollowed"
+                value="WhitespaceAround: ''{0}'' is not followed by whitespace. Empty blocks may only be represented as '{}' when not part of a multi-block statement (4.1.3)" />
+            <message key="ws.notPreceded" value="WhitespaceAround: ''{0}'' is not preceded with whitespace." />
+        </module>
+        <module name="OneStatementPerLine" />
+        <module name="MultipleVariableDeclarations" />
+        <module name="ArrayTypeStyle" />
+        <module name="MissingSwitchDefault" />
+        <module name="FallThrough" />
+        <module name="UpperEll" />
+        <module name="ModifierOrder" />
+        <module name="EmptyLineSeparator">
+            <property name="tokens"
+                value="PACKAGE_DEF, IMPORT, STATIC_IMPORT, CLASS_DEF, INTERFACE_DEF, ENUM_DEF,
+                    STATIC_INIT, INSTANCE_INIT, METHOD_DEF, CTOR_DEF, VARIABLE_DEF" />
+            <property name="allowNoEmptyLineBetweenFields" value="true" />
+        </module>
+        <module name="SeparatorWrap">
+            <property name="id" value="SeparatorWrapDot" />
+            <property name="tokens" value="DOT" />
+            <property name="option" value="nl" />
+        </module>
+        <module name="SeparatorWrap">
+            <property name="id" value="SeparatorWrapComma" />
+            <property name="tokens" value="COMMA" />
+            <property name="option" value="EOL" />
+        </module>
+        <module name="SeparatorWrap">
+            <!-- ELLIPSIS is EOL until https://github.com/google/styleguide/issues/258 -->
+            <property name="id" value="SeparatorWrapEllipsis" />
+            <property name="tokens" value="ELLIPSIS" />
+            <property name="option" value="EOL" />
+        </module>
+        <module name="SeparatorWrap">
+            <!-- ARRAY_DECLARATOR is EOL until https://github.com/google/styleguide/issues/259 -->
+            <property name="id" value="SeparatorWrapArrayDeclarator" />
+            <property name="tokens" value="ARRAY_DECLARATOR" />
+            <property name="option" value="EOL" />
+        </module>
+        <module name="SeparatorWrap">
+            <property name="id" value="SeparatorWrapMethodRef" />
+            <property name="tokens" value="METHOD_REF" />
+            <property name="option" value="nl" />
+        </module>
+        <module name="PackageName">
+            <property name="format" value="^[a-z]+(\.[a-z][a-z0-9]*)*$" />
+            <message key="name.invalidPattern" value="Package name ''{0}'' must match pattern ''{1}''." />
+        </module>
+        <module name="TypeName">
+            <property name="tokens" value="CLASS_DEF, INTERFACE_DEF, ENUM_DEF, ANNOTATION_DEF" />
+            <message key="name.invalidPattern" value="Type name ''{0}'' must match pattern ''{1}''." />
+        </module>
+        <module name="MemberName">
+            <property name="format" value="^[a-z][a-z0-9][a-zA-Z0-9]*$" />
+            <message key="name.invalidPattern" value="Member name ''{0}'' must match pattern ''{1}''." />
+        </module>
+        <module name="ParameterName">
+            <property name="format" value="^[a-z]([a-z0-9][a-zA-Z0-9]*)?$" />
+            <message key="name.invalidPattern" value="Parameter name ''{0}'' must match pattern ''{1}''." />
+        </module>
+        <module name="LambdaParameterName">
+            <property name="format" value="^[a-z]([a-z0-9][a-zA-Z0-9]*)?$" />
+            <message key="name.invalidPattern" value="Lambda parameter name ''{0}'' must match pattern ''{1}''." />
+        </module>
+        <module name="CatchParameterName">
+            <property name="format" value="^[a-z]([a-z0-9][a-zA-Z0-9]*)?$" />
+            <message key="name.invalidPattern" value="Catch parameter name ''{0}'' must match pattern ''{1}''." />
+        </module>
+        <module name="LocalVariableName">
+            <property name="format" value="^[a-z]([a-z0-9][a-zA-Z0-9]*)?$" />
+            <message key="name.invalidPattern" value="Local variable name ''{0}'' must match pattern ''{1}''." />
+        </module>
+        <module name="ClassTypeParameterName">
+            <property name="format" value="(^[A-Z][0-9]?)$|([A-Z][a-zA-Z0-9]*[T]$)" />
+            <message key="name.invalidPattern" value="Class type name ''{0}'' must match pattern ''{1}''." />
+        </module>
+        <module name="MethodTypeParameterName">
+            <property name="format" value="(^[A-Z][0-9]?)$|([A-Z][a-zA-Z0-9]*[T]$)" />
+            <message key="name.invalidPattern" value="Method type name ''{0}'' must match pattern ''{1}''." />
+        </module>
+        <module name="InterfaceTypeParameterName">
+            <property name="format" value="(^[A-Z][0-9]?)$|([A-Z][a-zA-Z0-9]*[T]$)" />
+            <message key="name.invalidPattern" value="Interface type name ''{0}'' must match pattern ''{1}''." />
+        </module>
+        <module name="NoFinalizer" />
+        <module name="GenericWhitespace">
+            <message key="ws.followed" value="GenericWhitespace ''{0}'' is followed by whitespace." />
+            <message key="ws.preceded" value="GenericWhitespace ''{0}'' is preceded with whitespace." />
+            <message key="ws.illegalFollow" value="GenericWhitespace ''{0}'' should followed by whitespace." />
+            <message key="ws.notPreceded" value="GenericWhitespace ''{0}'' is not preceded with whitespace." />
+        </module>
+        <module name="Indentation">
+            <property name="basicOffset" value="4" />
+            <property name="braceAdjustment" value="0" />
+            <property name="caseIndent" value="4" />
+            <property name="throwsIndent" value="4" />
+            <property name="lineWrappingIndentation" value="4" />
+            <property name="arrayInitIndent" value="4" />
+        </module>
+        <module name="AbbreviationAsWordInName">
+            <property name="ignoreFinal" value="false" />
+            <property name="allowedAbbreviationLength" value="1" />
+            <property name="tokens"
+                value="CLASS_DEF, INTERFACE_DEF, ENUM_DEF, ANNOTATION_DEF, ANNOTATION_FIELD_DEF,
+                    PARAMETER_DEF, VARIABLE_DEF, METHOD_DEF" />
+        </module>
+        <module name="OverloadMethodsDeclarationOrder" />
+        <module name="VariableDeclarationUsageDistance" />
+        <module name="CustomImportOrder">
+            <property name="sortImportsInGroupAlphabetically" value="true" />
+            <property name="separateLineBetweenGroups" value="true" />
+            <property name="customImportOrderRules" value="STATIC###THIRD_PARTY_PACKAGE" />
+            <property name="tokens" value="IMPORT, STATIC_IMPORT, PACKAGE_DEF" />
+        </module>
+        <module name="MethodParamPad">
+            <property name="tokens"
+                value="CTOR_DEF, LITERAL_NEW, METHOD_CALL, METHOD_DEF,
+                    SUPER_CTOR_CALL, ENUM_CONSTANT_DEF" />
+        </module>
+        <module name="NoWhitespaceBefore">
+            <property name="tokens"
+                value="COMMA, SEMI, POST_INC, POST_DEC, DOT, ELLIPSIS,
+                    LABELED_STAT, METHOD_REF" />
+            <property name="allowLineBreaks" value="true" />
+        </module>
+        <module name="ParenPad">
+            <property name="tokens"
+                value="ANNOTATION, ANNOTATION_FIELD_DEF, CTOR_CALL, CTOR_DEF, DOT, ENUM_CONSTANT_DEF,
+                    EXPR, LITERAL_CATCH, LITERAL_DO, LITERAL_FOR, LITERAL_IF, LITERAL_NEW,
+                    LITERAL_SWITCH, LITERAL_SYNCHRONIZED, LITERAL_WHILE, METHOD_CALL,
+                    METHOD_DEF, QUESTION, RESOURCE_SPECIFICATION, SUPER_CTOR_CALL, LAMBDA" />
+        </module>
+        <module name="OperatorWrap">
+            <property name="option" value="NL" />
+            <property name="tokens"
+                value="BAND, BOR, BSR, BXOR, DIV, EQUAL, GE, GT, LAND, LE, LITERAL_INSTANCEOF, LOR,
+                    LT, MINUS, MOD, NOT_EQUAL, PLUS, QUESTION, SL, SR, STAR, METHOD_REF " />
+        </module>
+        <module name="AnnotationLocation">
+            <property name="id" value="AnnotationLocationMostCases" />
+            <property name="tokens" value="CLASS_DEF, INTERFACE_DEF, ENUM_DEF, METHOD_DEF, CTOR_DEF" />
+        </module>
+        <module name="AnnotationLocation">
+            <property name="id" value="AnnotationLocationVariables" />
+            <property name="tokens" value="VARIABLE_DEF" />
+            <property name="allowSamelineMultipleAnnotations" value="true" />
+        </module>
+        <module name="NonEmptyAtclauseDescription" />
+        <module name="InvalidJavadocPosition" />
+        <module name="JavadocTagContinuationIndentation" />
+        <module name="SummaryJavadoc">
+            <property name="forbiddenSummaryFragments"
+                value="^@return the *|^This method returns |^A [{]@code [a-zA-Z0-9]+[}]( is a )" />
+        </module>
+        <module name="JavadocParagraph" />
+        <module name="AtclauseOrder">
+            <property name="tagOrder" value="@param, @return, @throws, @deprecated" />
+            <property name="target"
+                value="CLASS_DEF, INTERFACE_DEF, ENUM_DEF, METHOD_DEF, CTOR_DEF, VARIABLE_DEF" />
+        </module>
+        <module name="JavadocMethod">
+            <property name="allowMissingParamTags" value="true" />
+            <property name="allowMissingReturnTag" value="true" />
+            <property name="allowedAnnotations" value="Override, Test" />
+            <property name="tokens" value="METHOD_DEF, CTOR_DEF, ANNOTATION_FIELD_DEF" />
+        </module>
+        <module name="MissingJavadocMethod">
+            <property name="minLineCount" value="2" />
+            <property name="allowedAnnotations" value="Override, Test" />
+            <property name="tokens" value="METHOD_DEF, CTOR_DEF, ANNOTATION_FIELD_DEF" />
+            <property name="ignoreMethodNamesRegex" value="^(test|before|after)[a-zA-Z0-9_]*$" />
+        </module>
+        <module name="MethodName">
+            <property name="format" value="^[a-z][a-z0-9][a-zA-Z0-9_]*$" />
+            <message key="name.invalidPattern" value="Method name ''{0}'' must match pattern ''{1}''." />
+        </module>
+        <module name="SingleLineJavadoc">
+            <property name="ignoreInlineTags" value="false" />
+        </module>
+        <module name="EmptyCatchBlock">
+            <property name="exceptionVariableName" value="expected" />
+        </module>
+        <module name="CommentsIndentation">
+            <property name="tokens" value="SINGLE_LINE_COMMENT, BLOCK_COMMENT_BEGIN" />
+        </module>
+        <!-- https://checkstyle.org/config_filters.html#SuppressionXpathFilter -->
+        <module name="SuppressionXpathFilter">
+            <property name="file" value="${org.checkstyle.google.suppressionxpathfilter.config}"
+                default="checkstyle-xpath-suppressions.xml" />
+            <property name="optional" value="true" />
+        </module>
+        <module name="SuppressWarningsHolder"/>
+    </module>
+</module>
diff --git a/intentanalysis/pom.xml b/intentanalysis/pom.xml
index 2aea179..dea8b5d 100644
--- a/intentanalysis/pom.xml
+++ b/intentanalysis/pom.xml
@@ -41,6 +41,8 @@
         <sonar.dynamicAnalysis>reuseReports</sonar.dynamicAnalysis>
         <junit.vintage.version>5.9.0-RC1</junit.vintage.version>
         <junit.platform.version>1.9.0-RC1</junit.platform.version>
+        <version.maven-checkstyle-plugin>3.3.1</version.maven-checkstyle-plugin>
+        <version.parent.checkstyle>[4.1.2,)</version.parent.checkstyle>
     </properties>
 
     <dependencyManagement>
@@ -220,6 +222,62 @@
     </dependencies>
     <build>
         <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-checkstyle-plugin</artifactId>
+                <version>${version.maven-checkstyle-plugin}</version>
+                <executions>
+                    <execution>
+                        <id>onap-license</id>
+                        <goals>
+                            <goal>check</goal>
+                        </goals>
+                        <phase>process-sources</phase>
+                        <configuration>
+                            <configLocation>onap-checkstyle/check-license.xml</configLocation>
+                            <includeResources>false</includeResources>
+                            <includeTestSourceDirectory>true</includeTestSourceDirectory>
+                            <includeTestResources>false</includeTestResources>
+                            <sourceDirectories>
+                                <sourceDirectory>${project.build.sourceDirectory}</sourceDirectory>
+                            </sourceDirectories>
+                            <consoleOutput>true</consoleOutput>
+                            <failOnViolation>false</failOnViolation>
+                            <violationSeverity>warning</violationSeverity>
+                        </configuration>
+                    </execution>
+                    <execution>
+                        <id>onap-java-style</id>
+                        <goals>
+                            <goal>check</goal>
+                        </goals>
+                        <phase>process-sources</phase>
+                        <configuration>
+                            <!-- Use Google Java Style Guide:
+                              https://github.com/checkstyle/checkstyle/blob/master/src/main/resources/google_checks.xml
+                              with minor changes -->
+                            <configLocation>onap-checkstyle/onap-java-style.xml</configLocation>
+                            <!-- <sourceDirectory> is needed so that checkstyle ignores the generated
+                                sources directory -->
+                            <sourceDirectories>${project.build.sourceDirectory}</sourceDirectories>
+                            <includeResources>true</includeResources>
+                            <includeTestSourceDirectory>true</includeTestSourceDirectory>
+                            <includeTestResources>true</includeTestResources>
+                            <consoleOutput>true</consoleOutput>
+                            <failOnViolation>false</failOnViolation>
+                            <violationSeverity>warning</violationSeverity>
+                        </configuration>
+                    </execution>
+                </executions>
+                <dependencies>
+                    <dependency>
+                        <groupId>org.onap.usecase-ui.intent-analysis</groupId>
+                        <artifactId>checkstyle</artifactId>
+                        <version>14.0.0-SNAPSHOT</version>
+                        <scope>compile</scope>
+                    </dependency>
+                </dependencies>
+            </plugin>
             <plugin>
                 <groupId>org.springframework.boot</groupId>
                 <artifactId>spring-boot-maven-plugin</artifactId>
diff --git a/pom.xml b/pom.xml
index fda82b3..0d06898 100644
--- a/pom.xml
+++ b/pom.xml
@@ -26,6 +26,7 @@
     <modules>
         <module>intentanalysis</module>
         <module>standalone</module>
+        <module>checkstyle</module>
     </modules>
 
     <properties>
-- 
cgit 1.2.3-korg