Merge pull request #23958 from evgeniycheban

* gh-23958:
  Polish "Add liquibase driver class name property"
  Add liquibase driver class name property

Closes gh-23958

Author: wilkinsona

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/liquibase/LiquibaseAutoConfiguration.java

@@ -44,6 +44,7 @@
 import org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaAutoConfiguration;
 import org.springframework.boot.context.properties.EnableConfigurationProperties;
 import org.springframework.boot.jdbc.DataSourceBuilder;
+import org.springframework.boot.jdbc.DatabaseDriver;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Conditional;
 import org.springframework.context.annotation.Configuration;
@@ -53,6 +54,7 @@
 import org.springframework.jdbc.datasource.SimpleDriverDataSource;
 import org.springframework.orm.jpa.AbstractEntityManagerFactoryBean;
 import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;
+import org.springframework.util.StringUtils;
 
 /**
  * {@link EnableAutoConfiguration Auto-configuration} for Liquibase.
@@ -66,6 +68,7 @@
  * @author Dan Zheng
  * @author András Deák
  * @author Ferenc Gratzer
+ * @author Evgeniy Cheban
  * @since 1.1.0
  */
 @Configuration(proxyBeanMethods = false)
@@ -146,8 +149,19 @@ private DataSource createNewDataSource(DataSourceProperties dataSourceProperties
 			String url = getProperty(this.properties::getUrl, dataSourceProperties::determineUrl);
 			String user = getProperty(this.properties::getUser, dataSourceProperties::determineUsername);
 			String password = getProperty(this.properties::getPassword, dataSourceProperties::determinePassword);
+			String driverClassName = determineDriverClassName(dataSourceProperties, url);
 			return DataSourceBuilder.create().type(determineDataSourceType()).url(url).username(user).password(password)
-					.build();
+					.driverClassName(driverClassName).build();
+		}
+
+		private String determineDriverClassName(DataSourceProperties dataSourceProperties, String url) {
+			if (StringUtils.hasText(this.properties.getDriverClassName())) {
+				return this.properties.getDriverClassName();
+			}
+			if (StringUtils.hasText(dataSourceProperties.getDriverClassName())) {
+				return dataSourceProperties.getDriverClassName();
+			}
+			return StringUtils.hasText(url) ? DatabaseDriver.fromJdbcUrl(url).getDriverClassName() : null;
 		}
 
 		private Class<? extends DataSource> determineDataSourceType() {

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/liquibase/LiquibaseProperties.java

@@ -30,6 +30,7 @@
  * @author Marcel Overdijk
  * @author Eddú Meléndez
  * @author Ferenc Gratzer
+ * @author Evgeniy Cheban
  * @since 1.1.0
  */
 @ConfigurationProperties(prefix = "spring.liquibase", ignoreUnknownFields = false)
@@ -96,6 +97,11 @@ public class LiquibaseProperties {
 	 */
 	private String password;
 
+	/**
+	 * Fully qualified name of the JDBC driver. Auto-detected based on the URL by default.
+	 */
+	private String driverClassName;
+
 	/**
 	 * JDBC URL of the database to migrate. If not set, the primary configured data source
 	 * is used.
@@ -226,6 +232,14 @@ public void setPassword(String password) {
 		this.password = password;
 	}
 
+	public String getDriverClassName() {
+		return this.driverClassName;
+	}
+
+	public void setDriverClassName(String driverClassName) {
+		this.driverClassName = driverClassName;
+	}
+
 	public String getUrl() {
 		return this.url;
 	}

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/liquibase/LiquibaseAutoConfigurationTests.java

@@ -73,6 +73,7 @@
  * @author András Deák
  * @author Andrii Hrytsiuk
  * @author Ferenc Gratzer
+ * @author Evgeniy Cheban
  */
 @ExtendWith(OutputCaptureExtension.class)
 class LiquibaseAutoConfigurationTests {
@@ -222,6 +223,38 @@ void overrideDataSource() {
 					DataSource dataSource = liquibase.getDataSource();
 					assertThat(((HikariDataSource) dataSource).isClosed()).isTrue();
 					assertThat(((HikariDataSource) dataSource).getJdbcUrl()).isEqualTo("jdbc:hsqldb:mem:liquibase");
+					assertThat(((HikariDataSource) dataSource).getDriverClassName())
+							.isEqualTo("org.hsqldb.jdbc.JDBCDriver");
+				}));
+	}
+
+	@Test
+	void overrideDataSourceAndDriverClassName() {
+		String jdbcUrl = "jdbc:hsqldb:mem:liquibase";
+		String driverClassName = "org.hsqldb.jdbcDriver";
+		this.contextRunner.withUserConfiguration(EmbeddedDataSourceConfiguration.class)
+				.withPropertyValues("spring.liquibase.url:" + jdbcUrl,
+						"spring.liquibase.driver-class-name:" + driverClassName)
+				.run(assertLiquibase((liquibase) -> {
+					DataSource dataSource = liquibase.getDataSource();
+					assertThat(((HikariDataSource) dataSource).isClosed()).isTrue();
+					assertThat(((HikariDataSource) dataSource).getJdbcUrl()).isEqualTo(jdbcUrl);
+					assertThat(((HikariDataSource) dataSource).getDriverClassName()).isEqualTo(driverClassName);
+				}));
+	}
+
+	@Test
+	void overrideDataSourceWithFallbackDriverClassName() {
+		String jdbcUrl = "jdbc:hsqldb:mem:liquibase";
+		String driverClassName = "org.hsqldb.jdbcDriver";
+		this.contextRunner.withUserConfiguration(EmbeddedDataSourceConfiguration.class)
+				.withPropertyValues("spring.liquibase.url:" + jdbcUrl,
+						"spring.datasource.driver-class-name:" + driverClassName)
+				.run(assertLiquibase((liquibase) -> {
+					DataSource dataSource = liquibase.getDataSource();
+					assertThat(((HikariDataSource) dataSource).isClosed()).isTrue();
+					assertThat(((HikariDataSource) dataSource).getJdbcUrl()).isEqualTo(jdbcUrl);
+					assertThat(((HikariDataSource) dataSource).getDriverClassName()).isEqualTo(driverClassName);
 				}));
 	}
 

spring-boot-project/spring-boot-docs/src/docs/asciidoc/howto.adoc

@@ -2217,7 +2217,7 @@ In addition to YAML, Liquibase also supports JSON, XML, and SQL change log forma
 By default, Liquibase autowires the (`@Primary`) `DataSource` in your context and uses that for migrations.
 If you need to use a different `DataSource`, you can create one and mark its `@Bean` as `@LiquibaseDataSource`.
 If you do so and you want two data sources, remember to create another one and mark it as `@Primary`.
-Alternatively, you can use Liquibase's native `DataSource` by setting `spring.liquibase.[url,user,password]` in external properties.
+Alternatively, you can use Liquibase's native `DataSource` by setting `spring.liquibase.[driver-class-name,url,user,password]` in external properties.
 Setting either `spring.liquibase.url` or `spring.liquibase.user` is sufficient to cause Liquibase to use its own `DataSource`.
 If any of the three properties has not been set, the value of its equivalent `spring.datasource` property will be used.