Integrate kie-server into spring boot application - spring-boot

Question

I want to integrate all the kie-server autoconfiguration (especially JBPM) in my spring boot application.
I added these gradle dependencies in a separate module of my project
dependencies {
compile group: 'org.kie', name: 'kie-server-spring-boot-starter', version: '7.29.0.Final'
compile group: 'xerces', name: 'xercesImpl', version: '2.12.0'
}
then I added the configuration properties suggested by this link
https://github.com/kiegroup/droolsjbpm-integration/blob/master/kie-spring-boot/kie-spring-boot-samples/jbpm-spring-boot-sample-basic/src/main/resources/application-postgres.properties
then I tryed to start the application, but I got this error:
***************************
APPLICATION FAILED TO START
***************************
Description:
Parameter 0 of constructor in org.jbpm.springboot.datasources.JBPMDataSourceAutoConfiguration required a bean of type 'org.springframework.boot.jdbc.XADataSourceWrapper' that could not be found.
Action:
Consider defining a bean of type 'org.springframework.boot.jdbc.XADataSourceWrapper' in your configuration.
The JBPMDataSourceAutoConfiguration class is linked below
https://github.com/kiegroup/droolsjbpm-integration/blob/master/kie-spring-boot/kie-spring-boot-autoconfiguration/jbpm-spring-boot-data-sources/src/main/java/org/jbpm/springboot/datasources/JBPMDataSourceAutoConfiguration.java
How can I correctly configure an embedded integration of jbpm/drools/kie in my existing spring boot project?
----------UPDATE-------------
After setting the property spring.jta.enabled = true, the exception changed in
***************************
APPLICATION FAILED TO START
***************************
Description:
Parameter 0 of constructor in org.jbpm.springboot.datasources.JBPMDataSourceAutoConfiguration required a bean of type 'org.springframework.boot.jdbc.XADataSourceWrapper' that could not be found.
The following candidates were found but could not be injected:
- Bean method 'xaDataSourceWrapper' in 'NarayanaConfiguration.GenericJdbcConfiguration' not loaded because #ConditionalOnProperty (narayana.dbcp.enabled=false) found different value in property 'narayana.dbcp.enabled'
- Bean method 'xaDataSourceWrapper' in 'NarayanaConfiguration.GenericJdbcConfiguration' not loaded because Ancestor me.snowdrop.boot.narayana.autoconfigure.NarayanaConfiguration did not match
- Bean method 'xaDataSourceWrapper' in 'NarayanaConfiguration.PooledJdbcConfiguration' not loaded because Ancestor me.snowdrop.boot.narayana.autoconfigure.NarayanaConfiguration did not match
- Bean method 'xaDataSourceWrapper' in 'AtomikosJtaConfiguration' not loaded because #ConditionalOnClass did not find required class 'com.atomikos.icatch.jta.UserTransactionManager'
- Bean method 'xaDataSourceWrapper' in 'BitronixJtaConfiguration' not loaded because #ConditionalOnClass did not find required class 'bitronix.tm.jndi.BitronixContext'
Action:
Consider revisiting the entries above or defining a bean of type 'org.springframework.boot.jdbc.XADataSourceWrapper' in your configuration.

Answer 1

Spring boot uses an embedded tomcat.
It took me a lot of time to make jbpm engine work as a spring boot application with an embedded tomcat, a lot of configs and hacks, especially for the controller 's password which can't be loaded from JKS
So, you need to declare JNDI lookup resources manually.
import org.apache.catalina.Context;
import org.apache.catalina.startup.Tomcat;
import org.apache.tomcat.util.descriptor.web.ContextResource;
import org.kie.server.services.api.KieServer;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.CommandLineRunner;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory;
import org.springframework.boot.web.embedded.tomcat.TomcatWebServer;
import org.springframework.context.annotation.Bean;
import org.springframework.core.env.Environment;
import org.springframework.jndi.JndiObjectFactoryBean;
import javax.naming.NamingException;
import javax.sql.DataSource;
#SpringBootApplication
public class KieServerApplication {
private static final Logger log = LoggerFactory.getLogger(KieServerApplication.class);
public static void main(String[] args) throws NamingException {
log.info("Starting things");
SpringApplication.run(KieServerApplication.class, args);
}
#Autowired
private Environment env;
#Bean
public TomcatServletWebServerFactory tomcatFactory() {
return new TomcatServletWebServerFactory() {
#Override
protected TomcatWebServer getTomcatWebServer(
Tomcat tomcat) {
tomcat.enableNaming();
return super.getTomcatWebServer(tomcat);
}
#Override
protected void postProcessContext(Context context) {
final ContextResource jbpmProjectDs = new ContextResource();
jbpmProjectDs.setName("jdbc/jbpmProjectDs");
jbpmProjectDs.setType(DataSource.class.getName());
jbpmProjectDs.setProperty("driverClassName", "com.mysql.cj.jdbc.Driver");
jbpmProjectDs.setProperty("url",env.getProperty("spring.mamodb.datasource.url"));
marjoryDs.setProperty("username", env.getProperty("spring.mamodb.datasource.username"));
jbpmProjectDs.setProperty("password", env.getProperty("spring.mamodb.datasource.password"));
context.getNamingResources().addResource(jbpmProjectDs);
final ContextResource narayanaTransactionManager = new ContextResource();
narayanaTransactionManager.setName("TransactionManager");
narayanaTransactionManager.setType(javax.transaction.TransactionManager.class.getName());
narayanaTransactionManager.setProperty("factory","org.jboss.narayana.tomcat.jta.TransactionManagerFactory");
context.getNamingResources().addResource(narayanaTransactionManager);
final ContextResource transactionSynchronizationRegistry = new ContextResource();
transactionSynchronizationRegistry.setName("TransactionSynchronizationRegistry");
transactionSynchronizationRegistry.setType(javax.transaction.TransactionSynchronizationRegistry.class.getName());
transactionSynchronizationRegistry.setProperty("factory","org.jboss.narayana.tomcat.jta.TransactionSynchronizationRegistryFactory");
context.getNamingResources().addResource(transactionSynchronizationRegistry);
}
};
}
#Bean(destroyMethod = "")
public DataSource jndiDataSource() throws IllegalArgumentException, NamingException {
JndiObjectFactoryBean bean = new JndiObjectFactoryBean();
bean.setJndiName("java:comp/env/jdbc/jbpmProjectDs");
bean.setProxyInterface(DataSource.class);
bean.setLookupOnStartup(false);
bean.afterPropertiesSet();
return (DataSource) bean.getObject();
}
#Bean
CommandLineRunner deployAndValidate() {
return new CommandLineRunner() {
#Autowired
private KieServer kieServer;
#Override
public void run(String... strings) {
log.info("KieServer {} started", kieServer);
}
};
}
}
** properties Config **
#transaction manager configuration
spring.jta.narayana.transaction-manager-id="1"
narayana.transaction-manager-id=1
narayana.dbcp.enabled=true
narayana.dbcp.maxTotal=20
spring.jta.log-dir=./target/tx-object-store
narayana.periodic-recovery-period=10
narayana.recovery-backoff-period=10
POM file just for dependencies:
<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.kie</groupId>
<artifactId>kie-spring-boot-samples</artifactId>
<version>7.29.0.Final</version>
</parent>
<artifactId>kie-server</artifactId>
<name>KIE Server</name>
<description>KIE Server SpringBoot </description>
<properties>
<version.org.keycloak>5.0.0</version.org.keycloak>
</properties>
<dependencies>
<dependency>
<groupId>org.kie</groupId>
<artifactId>kie-server-spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<dependency>
<groupId>org.apache.tomcat</groupId>
<artifactId>tomcat-dbcp</artifactId>
</dependency>
<dependency>
<groupId>org.keycloak</groupId>
<artifactId>keycloak-spring-boot-starter</artifactId>
<exclusions>
<exclusion>
<artifactId>commons-logging</artifactId>
<groupId>commons-logging</groupId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.webjars</groupId>
<artifactId>swagger-ui</artifactId>
</dependency>
<dependency>
<groupId>org.apache.cxf</groupId>
<artifactId>cxf-rt-rs-service-description-swagger</artifactId>
<exclusions>
<exclusion>
<groupId>org.apache.cxf</groupId>
<artifactId>cxf-rt-rs-service-description-swagger-ui</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>io.swagger</groupId>
<artifactId>swagger-jaxrs</artifactId>
<exclusions>
<exclusion>
<groupId>javax.ws.rs</groupId>
<artifactId>jsr311-api</artifactId>
</exclusion>
</exclusions>
</dependency>
<!-- test dependencies -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>net.minidev</groupId>
<artifactId>accessors-smart</artifactId>
</exclusion>
<exclusion>
<groupId>com.vaadin.external.google</groupId>
<artifactId>android-json</artifactId>
</exclusion>
<exclusion>
<groupId>org.skyscreamer</groupId>
<artifactId>jsonassert</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.kie.server</groupId>
<artifactId>kie-server-client</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.jboss.spec.javax.ws.rs</groupId>
<artifactId>jboss-jaxrs-api_2.1_spec</artifactId>
</exclusion>
<exclusion>
<groupId>org.slf4j</groupId>
<artifactId>jcl-over-slf4j</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.jboss.narayana.tomcat</groupId>
<artifactId>tomcat-jta</artifactId>
</dependency>
<dependency>
<groupId>com.squareup.okhttp3</groupId>
<artifactId>okhttp</artifactId>
</dependency>
<dependency>
<groupId>org.jboss</groupId>
<artifactId>jboss-transaction-spi</artifactId>
</dependency>
<dependency>
<groupId>org.jboss.spec.javax.transaction</groupId>
<artifactId>jboss-transaction-api_1.2_spec</artifactId>
</dependency>
<dependency>
<groupId>jaxen</groupId>
<artifactId>jaxen</artifactId>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
</dependency>
<dependency>
<groupId>pull-parser</groupId>
<artifactId>pull-parser</artifactId>
</dependency>
<dependency>
<groupId>org.javassist</groupId>
<artifactId>javassist</artifactId>
</dependency>
<dependency>
<groupId>net.bytebuddy</groupId>
<artifactId>byte-buddy</artifactId>
</dependency>
<dependency>
<groupId>com.github.relaxng</groupId>
<artifactId>relaxngDatatype</artifactId>
</dependency>
<dependency>
<groupId>org.reflections</groupId>
<artifactId>reflections</artifactId>
</dependency>
<dependency>
<groupId>xml-apis</groupId>
<artifactId>xml-apis</artifactId>
</dependency>
<dependency>
<groupId>dom4j</groupId>
<artifactId>dom4j</artifactId>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>dom4j</groupId>
<artifactId>dom4j</artifactId>
<version>1.6.1</version>
</dependency>
<dependency>
<groupId>org.reflections</groupId>
<artifactId>reflections</artifactId>
<version>0.9.10</version>
</dependency>
<dependency>
<groupId>xml-apis</groupId>
<artifactId>xml-apis</artifactId>
<version>1.4.01</version>
</dependency>
<dependency>
<groupId>org.jboss.narayana.tomcat</groupId>
<artifactId>tomcat-jta</artifactId>
<version>5.9.0.Final</version>
</dependency>
<dependency>
<groupId>com.squareup.okhttp3</groupId>
<artifactId>okhttp</artifactId>
<version>3.4.2</version>
</dependency>
<dependency>
<groupId>org.keycloak.bom</groupId>
<artifactId>keycloak-adapter-bom</artifactId>
<version>${version.org.keycloak}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.17</version>
</dependency>
<dependency>
<groupId>io.marjory</groupId>
<artifactId>model</artifactId>
<version>1.0.99-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>io.marjory</groupId>
<artifactId>marjory-jta</artifactId>
<version>0.0.2</version>
</dependency>
<dependency>
<groupId>org.webjars</groupId>
<artifactId>swagger-ui</artifactId>
<version>2.1.0</version>
</dependency>
<dependency>
<groupId>org.apache.cxf</groupId>
<artifactId>cxf-rt-rs-service-description-swagger</artifactId>
<version>${version.org.apache.cxf}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
</dependency>
<dependency>
<groupId>org.apache.tomcat</groupId>
<artifactId>tomcat-dbcp</artifactId>
<version>8.0.23</version>
</dependency>
<dependency>
<groupId>org.jboss</groupId>
<artifactId>jboss-transaction-spi</artifactId>
<version>7.6.0.Final</version>
</dependency>
<dependency>
<groupId>org.jboss.spec.javax.transaction</groupId>
<artifactId>jboss-transaction-api_1.2_spec</artifactId>
<version>1.1.1.Final</version>
</dependency>
<dependency>
<groupId>jaxen</groupId>
<artifactId>jaxen</artifactId>
<version>1.2.0</version>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>3.9</version>
</dependency>
<dependency>
<groupId>pull-parser</groupId>
<artifactId>pull-parser</artifactId>
<version>2.1.10</version>
</dependency>
<dependency>
<groupId>org.javassist</groupId>
<artifactId>javassist</artifactId>
<version>3.20.0-GA</version>
</dependency>
<dependency>
<groupId>net.bytebuddy</groupId>
<artifactId>byte-buddy</artifactId>
<version>1.8.17</version>
</dependency>
<dependency>
<groupId>com.github.relaxng</groupId>
<artifactId>relaxngDatatype</artifactId>
<version>2011.1</version>
</dependency>
</dependencies>
</dependencyManagement>
<profiles>
<profile>
<id>mysql</id>
<activation>
<activeByDefault>true</activeByDefault>
</activation>
</profile>
<profile>
<id>QuickBuild</id>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.1</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
<includes>
<include>com/marjory/kie/server/*.java</include>
</includes>
</configuration>
</plugin>
<plugin>
<artifactId>maven-enforcer-plugin</artifactId>
<executions>
<execution>
<id>go-to-hell</id>
<phase>none</phase>
</execution>
</executions>
</plugin>
</plugins>
</build>
</profile>
</profiles>
</project>
Cheers,

Answer 2

just go to start.jbpm.org and
download ready made spring booy kie-server!