MOSIP-33046: Added in-memory batchDatasource for metadata tables (#1536)

Signed-off-by: HimajaDhanyamraju2 <dhanyamraju.himaja2@mindtree.com>
Co-authored-by: HimajaDhanyamraju2 <dhanyamraju.himaja2@mindtree.com>

kernel/kernel-salt-generator/pom.xml

@@ -41,6 +41,10 @@
 		</dependencies>
 	</dependencyManagement>
 	<dependencies>
+		<dependency>
+			<groupId>com.h2database</groupId>
+			<artifactId>h2</artifactId>
+		</dependency>
 		<dependency>
 			<groupId>org.springframework.boot</groupId>
 			<artifactId>spring-boot-starter-batch</artifactId>

kernel/kernel-salt-generator/src/main/java/io/mosip/kernel/saltgenerator/config/SaltGeneratorConfig.java

@@ -14,13 +14,17 @@
 import javax.sql.DataSource;
 
 import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.autoconfigure.batch.BatchDataSource;
 import org.springframework.boot.orm.jpa.hibernate.SpringImplicitNamingStrategy;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.context.annotation.Primary;
 import org.springframework.core.env.Environment;
 import org.springframework.jdbc.datasource.DataSourceTransactionManager;
 import org.springframework.jdbc.datasource.DriverManagerDataSource;
+import org.springframework.jdbc.datasource.embedded.EmbeddedDatabase;
+import org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseBuilder;
+import org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseType;
 import org.springframework.orm.jpa.JpaTransactionManager;
 import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;
 import org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter;
@@ -111,4 +115,15 @@ public PlatformTransactionManager transactionManager() {
 		return new DataSourceTransactionManager(dataSource());
 	}
 
+	@Bean
+	@BatchDataSource
+	public DataSource batchDatasource() {
+		EmbeddedDatabaseBuilder builder = new EmbeddedDatabaseBuilder();
+		EmbeddedDatabase embeddedDatabase = builder
+				.setType(EmbeddedDatabaseType.H2)
+				.generateUniqueName(true)
+				.build();
+		return embeddedDatabase;
+	}
+
 }