org.apache.camel.support.component

Class AbstractApiProducer<E extends Enum<E> & ApiName,T>

java.lang.Object

org.apache.camel.support.service.BaseService

org.apache.camel.support.service.ServiceSupport

org.apache.camel.support.DefaultProducer

org.apache.camel.support.DefaultAsyncProducer

org.apache.camel.support.component.AbstractApiProducer<E,T>

All Implemented Interfaces:

AutoCloseable, org.apache.camel.AsyncProcessor, org.apache.camel.AsyncProducer, org.apache.camel.EndpointAware, org.apache.camel.IsSingleton, org.apache.camel.Processor, org.apache.camel.Producer, org.apache.camel.Service, org.apache.camel.ShutdownableService, org.apache.camel.StatefulService, PropertiesInterceptor, ResultInterceptor, org.apache.camel.SuspendableService

public abstract class AbstractApiProducer<E extends Enum<E> & ApiName,T>
extends DefaultAsyncProducer
implements PropertiesInterceptor, ResultInterceptor

Base class for API based Producers

Field Summary

Fields

Modifier and Type	Field and Description
protected AbstractApiEndpoint<E,T>	endpoint
protected ApiMethodHelper<?>	methodHelper
protected ApiMethodPropertiesHelper<T>	propertiesHelper

Fields inherited from class org.apache.camel.support.service.BaseService

BUILDED, FAILED, INITIALIZED, INITIALIZING, lock, NEW, SHUTDOWN, SHUTTINGDOWN, STARTED, STARTING, status, STOPPED, STOPPING, SUSPENDED, SUSPENDING

Constructor Summary

Constructors

Constructor and Description
AbstractApiProducer(AbstractApiEndpoint<E,T> endpoint, ApiMethodPropertiesHelper<T> propertiesHelper)

Method Summary

Modifier and Type	Method and Description
protected Object	doInvokeMethod(ApiMethod method, Map<String,Object> properties) Invoke the API method.
protected ApiMethod	findMethod(org.apache.camel.Exchange exchange, Map<String,Object> properties)
void	interceptProperties(Map<String,Object> properties) Intercept method invocation arguments used to find and invoke API method.
void	interceptResult(Object methodResult, org.apache.camel.Exchange resultExchange) Do additional result exchange processing, for example, adding custom headers.
boolean	process(org.apache.camel.Exchange exchange, org.apache.camel.AsyncCallback callback)
Object	splitResult(Object result) Split a complex result into result elements.

Methods inherited from class org.apache.camel.support.DefaultAsyncProducer

process, processAsync

Methods inherited from class org.apache.camel.support.DefaultProducer

createExchange, doStart, doStop, getEndpoint, isSingleton, toString

Methods inherited from class org.apache.camel.support.service.BaseService

build, doBuild, doFail, doInit, doLifecycleChange, doResume, doShutdown, doSuspend, fail, getStatus, init, isBuild, isInit, isNew, isRunAllowed, isShutdown, isStarted, isStarting, isStartingOrStarted, isStopped, isStopping, isStoppingOrStopped, isSuspended, isSuspending, isSuspendingOrSuspended, resume, shutdown, start, stop, suspend

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.camel.Service

build, close, init, start, stop

Methods inherited from interface org.apache.camel.IsSingleton

isSingleton, test

Methods inherited from interface org.apache.camel.EndpointAware

getEndpoint

Methods inherited from interface org.apache.camel.StatefulService

getStatus, isRunAllowed, isStarted, isStarting, isStopped, isStopping, isSuspending

Methods inherited from interface org.apache.camel.SuspendableService

isSuspended, resume, suspend

Methods inherited from interface org.apache.camel.ShutdownableService

shutdown

Field Detail

endpoint

protected final AbstractApiEndpoint<E extends Enum<E> & ApiName,T> endpoint

propertiesHelper

protected final ApiMethodPropertiesHelper<T> propertiesHelper

methodHelper

protected final ApiMethodHelper<?> methodHelper

Constructor Detail

AbstractApiProducer

public AbstractApiProducer(AbstractApiEndpoint<E,T> endpoint,
                           ApiMethodPropertiesHelper<T> propertiesHelper)

Method Detail

process

public boolean process(org.apache.camel.Exchange exchange,
                       org.apache.camel.AsyncCallback callback)

Specified by:

process in interface org.apache.camel.AsyncProcessor

interceptProperties

public void interceptProperties(Map<String,Object> properties)

Description copied from interface: PropertiesInterceptor

Intercept method invocation arguments used to find and invoke API method. Can be overridden to add custom/hidden method arguments.

Specified by:

interceptProperties in interface PropertiesInterceptor

Parameters:

properties - method invocation arguments.

doInvokeMethod

protected Object doInvokeMethod(ApiMethod method,
                                Map<String,Object> properties)
                         throws org.apache.camel.RuntimeCamelException

Invoke the API method. Derived classes can override, but MUST call super.doInvokeMethod().

Parameters:

method - API method to invoke.

properties - method arguments from endpoint properties and exchange In headers.

Returns:

API method invocation result.

Throws:

org.apache.camel.RuntimeCamelException - on error. Exceptions thrown by API method are wrapped.

splitResult

public final Object splitResult(Object result)

Description copied from interface: ResultInterceptor

Split a complex result into result elements.

Specified by:

splitResult in interface ResultInterceptor

Parameters:

result - API method invocation result

Returns:

either the same result if it cannot be split, an array or collection object with split results

interceptResult

public void interceptResult(Object methodResult,
                            org.apache.camel.Exchange resultExchange)

Description copied from interface: ResultInterceptor

Do additional result exchange processing, for example, adding custom headers.

Specified by:

interceptResult in interface ResultInterceptor

Parameters:

methodResult - result of API method invocation.

resultExchange - result as a Camel exchange, may be a split result from Arrays or Collections.

findMethod

protected ApiMethod findMethod(org.apache.camel.Exchange exchange,
                               Map<String,Object> properties)