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package org.glassfish.api.admin;
import org.glassfish.api.ActionReport;
import org.jvnet.hk2.annotations.Inject;
import org.jvnet.hk2.annotations.Service;
import java.lang.annotation.*;
/**
* Annotation to qualify when an action like a command is targeted to be run
* on a cluster or a set of instances.
*
* Some actions may run only on DAS, or only on instances, by default they run
* on both the DAS and the instances.
*
* @author Jerome Dochez
*/
@Retention(RetentionPolicy.RUNTIME)
@Documented
@Target(ElementType.TYPE)
public @interface ExecuteOn {
/**
* Returns an array of process types on which the annotated action should run
*
* @return array of target process types
*/
RuntimeType[] value() default { RuntimeType.DAS, RuntimeType.INSTANCE};
/**
* Identifies the {@link ClusterExecutor} that is responsible for remotely executing
* commands on the target clusters or instances. The provider will be looked up
* in the habitat by its type.
*
* @return a {@link ClusterExecutor} type or null to use the default executor that takes the
* "target" command parameter to
*/
Class<? extends ClusterExecutor> executor() default ExecuteOn.TargetBasedExecutor.class;
/**
* Identifies the expected behaviour from the framework if any of the clustered
* invocation could not be invoked because the remote server was offline.
*
* @return the action the framework should perform if any of the remote invocation
* of this command cannot be executed due to the server being offline.
*/
FailurePolicy ifOffline() default FailurePolicy.Warn;
/**
* Identifies the expected behaviour from the framework if any of the clustered
* invocation failed.
*
* @return the action the framework should perform if any of the remote invocation
* of this command fails.
*/
FailurePolicy ifFailure() default FailurePolicy.Error;
/**
* Convenience implementation that delegate to a provided system executor. This
* provider will be looked up from the habitat by its type ClusterExecutor and the
* "target" name.
*/
@Service
final static class TargetBasedExecutor implements ClusterExecutor {
@Inject(name="GlassFishClusterExecutor")
private ClusterExecutor delegate=null;
@Override
public ActionReport.ExitCode execute(String commandName, AdminCommand command, AdminCommandContext context, ParameterMap parameters) {
return delegate.execute(commandName, command, context, parameters);
}
}
}