org.kie.services.remote.rest.async
Class AsyncDeploymentJobExecutor

java.lang.Object
  org.kie.services.remote.rest.async.AsyncDeploymentJobExecutor

@ApplicationScoped
public class AsyncDeploymentJobExecutor
extends Object

A lot of the ideas in this class have been taken from the org.jboss.resteasy.coreAsynchronousDispatcher class.

Unfortunately, the Resteasy asynchronous job mechanism has a number of bugs (most importantly, RESTEASY-682) which make it unusable for our purposes.

Because tomcat compatibility is also important, we also can't use the EJB asynchronous mechanisms.

That leaves us with the java.util.concurrent.* executor framework. However, because the KModuleDeploymentService gives no guarantee with regards to concurrency (e.g. is not thread-safe), it's important to make sure that the same deployment unit is not concurrently deployed (or undeployed).

In order to satisfy that last requirement (no concurrent un/deployment of the same deployment unit), we use a single threaded exector, which queues up other jobs.

Field Summary

static String

MAX_JOB_QUEUE_SIZE_PROP

Constructor Summary

AsyncDeploymentJobExecutor()

Method Summary

JaxbDeploymentUnit.JaxbDeploymentStatus	getStatus(String deploymentUnitId)
JaxbDeploymentJobResult	submitDeployJob(org.jbpm.kie.services.impl.KModuleDeploymentService deploymentService, org.jbpm.kie.services.impl.KModuleDeploymentUnit depUnit)
JaxbDeploymentJobResult	submitUndeployJob(org.jbpm.kie.services.impl.KModuleDeploymentService deploymentService, org.jbpm.kie.services.impl.KModuleDeploymentUnit depUnit)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

MAX_JOB_QUEUE_SIZE_PROP

public static final String MAX_JOB_QUEUE_SIZE_PROP

See Also:

Constant Field Values

Constructor Detail

AsyncDeploymentJobExecutor

public AsyncDeploymentJobExecutor()

Method Detail

submitDeployJob

public JaxbDeploymentJobResult submitDeployJob(org.jbpm.kie.services.impl.KModuleDeploymentService deploymentService,
                                               org.jbpm.kie.services.impl.KModuleDeploymentUnit depUnit)

submitUndeployJob

public JaxbDeploymentJobResult submitUndeployJob(org.jbpm.kie.services.impl.KModuleDeploymentService deploymentService,
                                                 org.jbpm.kie.services.impl.KModuleDeploymentUnit depUnit)

getStatus

public JaxbDeploymentUnit.JaxbDeploymentStatus getStatus(String deploymentUnitId)