Asynchronous execution (Web container)

<!-- omitted -->
<!-- (1) -->
<import resource="classpath:META-INF/spring/launch-context.xml"/>

<bean id="jsonMessageConverter"
      class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter"
      p:objectMapper-ref="objectMapper"/>

<bean id="objectMapper"
      class="org.springframework.http.converter.json.Jackson2ObjectMapperFactoryBean">
  <property name="dateFormat">
      <bean class="com.fasterxml.jackson.databind.util.StdDateFormat"/>
  </property>
</bean>

<mvc:annotation-driven>
  <mvc:message-converters register-defaults="false">
    <ref bean="jsonMessageConverter"/>
  </mvc:message-converters>
</mvc:annotation-driven>

<mvc:default-servlet-handler/>

<!-- (2) -->
<context:component-scan base-package="org.terasoluna.batch.sample.app.api"/>

<!-- (3) -->
<bean class="org.springframework.batch.core.configuration.support.AutomaticJobRegistrar">
    <property name="applicationContextFactories">
        <bean class="org.springframework.batch.core.configuration.support.ClasspathXmlApplicationContextsFactoryBean">
            <property name="resources">
                <list>
                  <value>classpath:/META-INF/jobs/**/*.xml</value>
                </list>
            </property>
        </bean>
    </property>
    <property name="jobLoader">
        <bean class="org.springframework.batch.core.configuration.support.DefaultJobLoader"
              p:jobRegistry-ref="jobRegistry"/>
    </property>
</bean>

<!-- (4) -->
<task:executor id="taskExecutor" pool-size="3" queue-capacity="10"/>

<!-- (5) -->
<bean id="jobLauncher" class="org.springframework.batch.core.launch.support.SimpleJobLauncher"
      p:jobRepository-ref="jobRepository"
      p:taskExecutor-ref="taskExecutor"/>
<!-- omitted -->

<!-- omitted -->
<servlet>
    <servlet-name>restApiServlet</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
        <param-name>contextConfigLocation</param-name>
        <!-- (6) -->
        <param-value>classpath*:META-INF/spring/spring-mvc-rest.xml</param-value>
    </init-param>
    <!-- (7) -->
    <init-param>
        <param-name>spring.profiles.active</param-name>
        <param-value>async</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
</servlet>

<servlet-mapping>
    <servlet-name>restApiServlet</servlet-name>
    <url-pattern>/api/v1/*</url-pattern>
</servlet-mapping>
<!-- omitted -->

// asyncapp/asyncapp-web/src/main/java/org/terasoluna/batch/sample/app/api/jobinfo/JobOperationResource.java
package org.terasoluna.batch.sample.app.api.jobinfo;

public class JobOperationResource {

    private String jobName = null;

    private String jobParams = null;

    private Long jobExecutionId = null;

    private String errorMessage = null;

    private Exception error = null;

    // Getter and setter are omitted.
}

// asyncapp/asyncapp-web/src/main/java/org/terasoluna/batch/sample/app/api/jobinfo/JobExecutionResource.java
package org.terasoluna.batch.sample.app.api.jobinfo;

// omitted.

public class JobExecutionResource {

    private Long jobExecutionId = null;

    private String jobName = null;

    private Long stepExecutionId = null;

    private String stepName = null;

    private List<StepExecutionResource> stepExecutions = new ArrayList<>();

    private String status = null;

    private String exitStatus = null;

    private String errorMessage;

    private List<String> failureExceptions = new ArrayList<>();

    // Getter and setter are omitted.
}

// asyncapp/asyncapp-web/src/main/java/org/terasoluna/batch/sample/app/api/jobinfo/StepExecutionResource.java
package org.terasoluna.batch.sample.app.api.jobinfo;

public class StepExecutionResource {

  private Long stepExecutionId = null;

  private String stepName = null;

  private String status = null;

  private List<String> failureExceptions = new ArrayList<>();

    // Getter and setter are omitted.
}

// asyncapp/asyncapp-web/src/main/java/org/terasoluna/batch/sample/app/api/JobController.java
package org.terasoluna.batch.sample.app.api;

// omitted

// (1)
@RequestMapping("job")
@RestController
public class JobController {

    // (2)
    @Inject
    JobOperator jobOperator;

    // (2)
    @Inject
    JobExplorer jobExplorer;

    @RequestMapping(value = "{jobName}", method = RequestMethod.POST)
    public ResponseEntity<JobOperationResource> launch(@PathVariable("jobName") String jobName,
            @RequestBody JobOperationResource requestResource) {

        JobOperationResource responseResource = new JobOperationResource();
        responseResource.setJobName(jobName);
        try {
            // (3)
            Long jobExecutionId = jobOperator.start(jobName, requestResource.getJobParams());
            responseResource.setJobExecutionId(jobExecutionId);
            return ResponseEntity.ok().body(responseResource);
        } catch (NoSuchJobException | JobInstanceAlreadyExistsException | JobParametersInvalidException e) {
            responseResource.setError(e);
            return ResponseEntity.badRequest().body(responseResource);
        }
    }

    @RequestMapping(value = "{jobExecutionId}", method = RequestMethod.GET)
    @ResponseStatus(HttpStatus.OK)
    public JobExecutionResource getJob(@PathVariable("jobExecutionId") Long jobExecutionId) {

        JobExecutionResource responseResource = new JobExecutionResource();
        responseResource.setJobExecutionId(jobExecutionId);

        // (4)
        JobExecution jobExecution = jobExplorer.getJobExecution(jobExecutionId);

        if (jobExecution == null) {
            responseResource.setErrorMessage("Job execution not found.");
        } else {
            mappingExecutionInfo(jobExecution, responseResource);
        }

        return responseResource;
    }

    private void mappingExecutionInfo(JobExecution src, JobExecutionResource dest) {
      dest.setJobName(src.getJobInstance().getJobName());
      for (StepExecution se : src.getStepExecutions()) {
          StepExecutionResource ser = new StepExecutionResource();
          ser.setStepExecutionId(se.getId());
          ser.setStepName(se.getStepName());
          ser.setStatus(se.getStatus().toString());
          for (Throwable th : se.getFailureExceptions()) {
              ser.getFailureExceptions().add(th.toString());
          }
          dest.getStepExecutions().add(ser);
      }
      dest.setStatus(src.getStatus().toString());
      dest.setExitStatus(src.getExitStatus().toString());
    }
}

$ cd asyncapp
$ ls
asyncbatch/  asyncapp-web/  pom.xml
$ mvn clean package
[INFO] Scanning for projects...
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Build Order:
[INFO]
[INFO] TERASOLUNA Server Framework for Java (5.x) Web Blank Multi Project (MyBatis3)
[INFO] TERASOLUNA Batch Framework for Java (5.x) Blank Project
[INFO] asyncapp-web
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building TERASOLUNA Server Framework for Java (5.x) Web Blank Multi Project (MyBatis3) 1.0-SNAPSHOT
[INFO] ------------------------------------------------------------------------

(omitted)

[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO]
[INFO] TERASOLUNA Server Framework for Java (5.x) Web Blank Multi Project (MyBatis3) SUCCESS [  0.226 s]
[INFO] TERASOLUNA Batch Framework for Java (5.x) Blank Project SUCCESS [  6.481s]
[INFO] asyncapp-web ....................................... SUCCESS [  5.400 s]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 12.597 s
[INFO] Finished at: 2017-02-10T22:32:43+09:00
[INFO] Final Memory: 38M/250M
[INFO] ------------------------------------------------------------------------
$