io.apiman.gateway.engine.impl

Class ServiceRequestExecutorImpl

java.lang.Object

io.apiman.gateway.engine.impl.ServiceRequestExecutorImpl

All Implemented Interfaces:

IServiceRequestExecutor

public class ServiceRequestExecutorImpl
extends Object
implements IServiceRequestExecutor

Manages a single request-response sequence. It is executed in the following order: - Invoke and evaluate request chain. - Invoke back-end connector IServiceConnector. - Invoke handler set on streamHandler(IAsyncHandler) chunks stream through request chain, into connector). - Invoke and evaluate response chain. - Return results via resultHandler. In the case of failure, the resultHandler is called at the earliest opportunity.

Author:

Marc Savy

Constructor Summary

Constructors

Constructor and Description
ServiceRequestExecutorImpl(io.apiman.gateway.engine.beans.ServiceRequest serviceRequest, IAsyncResultHandler<IEngineResult> resultHandler, io.apiman.gateway.engine.beans.Service service, IPolicyContext context, List<io.apiman.gateway.engine.beans.Policy> policies, IPolicyFactory policyFactory, IConnectorFactory connectorFactory) Constructs a new ServiceRequestExecutorImpl.

Method Summary

Methods

Modifier and Type	Method and Description
void	execute() Execute the policy chain and request.
protected void	handleStream() Called when the service connector is ready to receive data from the inbound client request.
boolean	isFinished() Policy request-response sequence has completed.
void	streamHandler(IAsyncHandler<ISignalWriteStream> handler) Indicates when the back-end connector is ready to handle streamed data.

Methods inherited from class java.lang.Object

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

Constructor Detail

ServiceRequestExecutorImpl

public ServiceRequestExecutorImpl(io.apiman.gateway.engine.beans.ServiceRequest serviceRequest,
                          IAsyncResultHandler<IEngineResult> resultHandler,
                          io.apiman.gateway.engine.beans.Service service,
                          IPolicyContext context,
                          List<io.apiman.gateway.engine.beans.Policy> policies,
                          IPolicyFactory policyFactory,
                          IConnectorFactory connectorFactory)

Constructs a new ServiceRequestExecutorImpl.

Parameters:

serviceRequest -

resultHandler -

service -

context -

policies -

policyFactory -

connectorFactory -

Method Detail

execute

public void execute()

Description copied from interface: IServiceRequestExecutor

Execute the policy chain and request.

Specified by:

execute in interface IServiceRequestExecutor

See Also:

IServiceRequestExecutor.execute()

handleStream

protected void handleStream()

Called when the service connector is ready to receive data from the inbound client request.

isFinished

public boolean isFinished()

Description copied from interface: IServiceRequestExecutor

Policy request-response sequence has completed.

Specified by:

isFinished in interface IServiceRequestExecutor

Returns:

true if finished, else false.

See Also:

IServiceRequestExecutor.isFinished()

streamHandler

public void streamHandler(IAsyncHandler<ISignalWriteStream> handler)

Description copied from interface: IServiceRequestExecutor

Indicates when the back-end connector is ready to handle streamed data.

Specified by:

streamHandler in interface IServiceRequestExecutor

See Also:

IServiceRequestExecutor.streamHandler(io.apiman.gateway.engine.async.IAsyncHandler)