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[BAEL-3443] How To Write A Quarkus Extension (eugenp#8260)
* quarkus extension * add the extension module to default-first profile. * 1.0.0.CR1 ==> 1.0.0.CR2 * Quarkus version ==> 1.0.0.Final * remove comment. * reorder module builds
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‎pom.xml

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<module>java-blockchain</module>
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<module>machine-learning</module>
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<module>wildfly</module>
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<module>quarkus-extension</module>
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</modules>
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</profile>

‎quarkus-extension/pom.xml

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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<groupId>com.baeldung.quarkus.extension</groupId>
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<artifactId>quarkus-extension</artifactId>
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<version>1.0-SNAPSHOT</version>
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<name>Quarkus - Liquibase Extension</name>
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<packaging>pom</packaging>
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<modules>
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<module>quarkus-liquibase</module>
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<module>quarkus-app</module>
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</modules>
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</project>

‎quarkus-extension/quarkus-app/pom.xml

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<?xml version="1.0"?>
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<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
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xmlns="http://maven.apache.org/POM/4.0.0"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
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<modelVersion>4.0.0</modelVersion>
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<groupId>com.baeldung.quarkus.app</groupId>
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<artifactId>quarkus-app</artifactId>
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<version>1.0-SNAPSHOT</version>
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<properties>
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<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
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<surefire-plugin.version>2.22.0</surefire-plugin.version>
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<maven.compiler.parameters>true</maven.compiler.parameters>
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<quarkus.version>1.0.0.Final</quarkus.version>
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<compiler-plugin.version>3.8.1</compiler-plugin.version>
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<maven.compiler.source>1.8</maven.compiler.source>
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<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
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<maven.compiler.target>1.8</maven.compiler.target>
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</properties>
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<dependencyManagement>
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<dependencies>
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<dependency>
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<groupId>io.quarkus</groupId>
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<artifactId>quarkus-universe-bom</artifactId>
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<version>${quarkus.version}</version>
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<type>pom</type>
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<scope>import</scope>
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</dependency>
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</dependencies>
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</dependencyManagement>
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<dependencies>
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<dependency>
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<groupId>com.baeldung.quarkus.liquibase</groupId>
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<artifactId>quarkus-liquibase</artifactId>
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<version>1.0-SNAPSHOT</version>
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</dependency>
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<dependency>
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<groupId>io.quarkus</groupId>
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<artifactId>quarkus-jdbc-h2</artifactId>
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<version>${quarkus.version}</version>
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</dependency>
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</dependencies>
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<build>
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<plugins>
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<plugin>
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<groupId>io.quarkus</groupId>
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<artifactId>quarkus-maven-plugin</artifactId>
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<version>${quarkus.version}</version>
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<executions>
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<execution>
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<goals>
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<goal>build</goal>
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</goals>
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</execution>
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</executions>
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</plugin>
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<plugin>
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<artifactId>maven-compiler-plugin</artifactId>
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<version>${compiler-plugin.version}</version>
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</plugin>
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<plugin>
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<artifactId>maven-surefire-plugin</artifactId>
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<version>${surefire-plugin.version}</version>
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<configuration>
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<systemProperties>
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<java.util.logging.manager>org.jboss.logmanager.LogManager</java.util.logging.manager>
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</systemProperties>
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</configuration>
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</plugin>
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</plugins>
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</build>
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</project>

‎quarkus-extension/quarkus-app/src/main/resources/application.properties

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# configure datasource
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#quarkus.datasource.url=jdbc:h2:tcp://localhost/~/test
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quarkus.datasource.url=jdbc:h2:mem:testdb
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quarkus.datasource.driver=org.h2.Driver
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quarkus.datasource.username=sa
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quarkus.datasource.password=
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#quarkus
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quarkus.liquibase.change-log=db/liquibase-changelog-master.xml
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‎quarkus-extension/quarkus-app/src/main/resources/db/liquibase-changelog-master.xml

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<?xml version="1.0" encoding="UTF-8"?>
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<databaseChangeLog
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xmlns="http://www.liquibase.org/xml/ns/dbchangelog"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-3.8.xsd">
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<changeSet id="1" author="baeldung">
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<createTable tableName="person">
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<column name="id" type="int" autoIncrement="true">
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<constraints primaryKey="true" nullable="false"/>
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</column>
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<column name="firstname" type="varchar(50)"/>
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<column name="lastname" type="varchar(50)">
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<constraints nullable="false"/>
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</column>
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<column name="state" type="char(2)"/>
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</createTable>
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</changeSet>
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</databaseChangeLog>

‎quarkus-extension/quarkus-liquibase/deployment/pom.xml

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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<parent>
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<artifactId>quarkus-liquibase-parent</artifactId>
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<groupId>com.baeldung.quarkus.liquibase</groupId>
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<version>1.0-SNAPSHOT</version>
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</parent>
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<modelVersion>4.0.0</modelVersion>
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<name>Quarkus - Liquibase - Deployment</name>
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<artifactId>quarkus-liquibase-deployment</artifactId>
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<dependencies>
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<dependency>
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<groupId>io.quarkus</groupId>
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<artifactId>quarkus-core-deployment</artifactId>
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<version>${quarkus.version}</version>
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</dependency>
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<dependency>
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<groupId>io.quarkus</groupId>
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<artifactId>quarkus-arc-deployment</artifactId>
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<version>${quarkus.version}</version>
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</dependency>
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<dependency>
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<groupId>io.quarkus</groupId>
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<artifactId>quarkus-agroal-deployment</artifactId>
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<version>${quarkus.version}</version>
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</dependency>
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<dependency>
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<groupId>com.baeldung.quarkus.liquibase</groupId>
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<artifactId>quarkus-liquibase</artifactId>
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<version>${project.version}</version>
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</dependency>
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</dependencies>
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<build>
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<plugins>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-compiler-plugin</artifactId>
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<version>3.8.1</version>
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<configuration>
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<annotationProcessorPaths>
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<path>
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<groupId>io.quarkus</groupId>
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<artifactId>quarkus-extension-processor</artifactId>
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<version>${quarkus.version}</version>
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</path>
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</annotationProcessorPaths>
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</configuration>
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</plugin>
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</plugins>
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</build>
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</project>

‎quarkus-extension/quarkus-liquibase/deployment/src/main/java/com/baeldung/quarkus/liquibase/LiquibaseProcessor.java

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package com.baeldung.quarkus.liquibase;
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import io.quarkus.agroal.deployment.DataSourceInitializedBuildItem;
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import io.quarkus.arc.deployment.AdditionalBeanBuildItem;
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import io.quarkus.arc.deployment.BeanContainerBuildItem;
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import io.quarkus.arc.deployment.BeanContainerListenerBuildItem;
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import io.quarkus.deployment.annotations.BuildProducer;
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import io.quarkus.deployment.annotations.BuildStep;
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import io.quarkus.deployment.annotations.ExecutionTime;
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import io.quarkus.deployment.annotations.Record;
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import io.quarkus.deployment.builditem.FeatureBuildItem;
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import liquibase.exception.LiquibaseException;
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public class LiquibaseProcessor {
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private LiquibaseConfig liquibaseConfig;
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@Record(ExecutionTime.STATIC_INIT)
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@BuildStep
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void build(BuildProducer<AdditionalBeanBuildItem> additionalBeanProducer,
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BuildProducer<FeatureBuildItem> featureProducer,
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LiquibaseRecorder recorder,
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BuildProducer<BeanContainerListenerBuildItem> containerListenerProducer,
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DataSourceInitializedBuildItem dataSourceInitializedBuildItem) {
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featureProducer.produce(new FeatureBuildItem("liquibase"));
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AdditionalBeanBuildItem unremovableProducer = AdditionalBeanBuildItem.unremovableOf(LiquibaseProducer.class);
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additionalBeanProducer.produce(unremovableProducer);
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containerListenerProducer.produce(
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new BeanContainerListenerBuildItem(recorder.setLiquibaseConfig(liquibaseConfig)));
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}
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@Record(ExecutionTime.RUNTIME_INIT)
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@BuildStep
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void processMigration(LiquibaseRecorder recorder, BeanContainerBuildItem beanContainer) throws LiquibaseException {
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recorder.migrate(beanContainer.getValue());
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}
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}

‎quarkus-extension/quarkus-liquibase/pom.xml

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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<groupId>com.baeldung.quarkus.liquibase</groupId>
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<artifactId>quarkus-liquibase-parent</artifactId>
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<version>1.0-SNAPSHOT</version>
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<name>Quarkus - Liquibase</name>
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<packaging>pom</packaging>
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<properties>
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<maven.compiler.source>1.8</maven.compiler.source>
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<maven.compiler.target>1.8</maven.compiler.target>
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<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
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<quarkus.version>1.0.0.Final</quarkus.version>
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</properties>
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<modules>
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<module>runtime</module>
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<module>deployment</module>
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</modules>
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</project>

‎quarkus-extension/quarkus-liquibase/runtime/pom.xml

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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<parent>
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<groupId>com.baeldung.quarkus.liquibase</groupId>
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<artifactId>quarkus-liquibase-parent</artifactId>
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<version>1.0-SNAPSHOT</version>
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</parent>
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<modelVersion>4.0.0</modelVersion>
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<name>Quarkus - Liquibase - Runtime</name>
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<artifactId>quarkus-liquibase</artifactId>
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<dependencies>
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<dependency>
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<groupId>io.quarkus</groupId>
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<artifactId>quarkus-core</artifactId>
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<version>${quarkus.version}</version>
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</dependency>
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<dependency>
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<groupId>io.quarkus</groupId>
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<artifactId>quarkus-agroal</artifactId>
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<version>${quarkus.version}</version>
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</dependency>
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<dependency>
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<groupId>org.liquibase</groupId>
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<artifactId>liquibase-core</artifactId>
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<version>3.8.1</version>
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</dependency>
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</dependencies>
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<build>
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<plugins>
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<plugin>
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<groupId>io.quarkus</groupId>
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<artifactId>quarkus-bootstrap-maven-plugin</artifactId>
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<version>${quarkus.version}</version>
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<executions>
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<execution>
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<goals>
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<goal>extension-descriptor</goal>
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</goals>
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<configuration>
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<deployment>${project.groupId}:${project.artifactId}-deployment:${project.version}
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</deployment>
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</configuration>
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</execution>
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</executions>
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</plugin>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-compiler-plugin</artifactId>
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<version>3.8.1</version>
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<configuration>
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<annotationProcessorPaths>
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<path>
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<groupId>io.quarkus</groupId>
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<artifactId>quarkus-extension-processor</artifactId>
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<version>${quarkus.version}</version>
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</path>
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</annotationProcessorPaths>
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</configuration>
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</plugin>
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</plugins>
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</build>
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</project>

‎quarkus-extension/quarkus-liquibase/runtime/src/main/java/com/baeldung/quarkus/liquibase/LiquibaseConfig.java

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package com.baeldung.quarkus.liquibase;
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import io.quarkus.runtime.annotations.ConfigItem;
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import io.quarkus.runtime.annotations.ConfigPhase;
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import io.quarkus.runtime.annotations.ConfigRoot;
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@ConfigRoot(name = "liquibase", phase = ConfigPhase.BUILD_AND_RUN_TIME_FIXED)
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public final class LiquibaseConfig {
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/**
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* master change log file
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*/
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@ConfigItem
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public String changeLog;
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}

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