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package org.mule.construct; |
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import org.mule.MessageExchangePattern; |
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import org.mule.api.MuleContext; |
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import org.mule.api.MuleException; |
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import org.mule.api.MuleRuntimeException; |
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import org.mule.api.component.Component; |
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import org.mule.api.component.JavaComponent; |
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import org.mule.api.construct.FlowConstructInvalidException; |
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import org.mule.api.context.MuleContextAware; |
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import org.mule.api.endpoint.InboundEndpoint; |
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import org.mule.api.processor.MessageProcessor; |
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import org.mule.api.processor.MessageProcessorBuilder; |
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import org.mule.api.source.MessageSource; |
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import org.mule.config.i18n.MessageFactory; |
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import org.mule.construct.processor.FlowConstructStatisticsMessageObserver; |
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import org.mule.interceptor.LoggingInterceptor; |
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import org.mule.processor.builder.InterceptingChainMessageProcessorBuilder; |
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import org.mule.util.ClassUtils; |
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|
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import java.lang.reflect.Method; |
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import java.util.List; |
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import edu.emory.mathcs.backport.java.util.Collections; |
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|
40 | 0 | public class SimpleService extends AbstractFlowConstruct |
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{ |
42 | 0 | public enum Type |
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{ |
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|
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|
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|
48 | 0 | JAX_WS |
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{ |
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@Override |
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public void validate(Component component) throws FlowConstructInvalidException |
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{ |
53 | 0 | if (!(component instanceof JavaComponent)) |
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{ |
55 | 0 | throw new FlowConstructInvalidException( |
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MessageFactory.createStaticMessage("SimpleService can only expose instances of JAX-WS annotated JavaComponent instances. You provided a: " |
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+ component.getClass().getName())); |
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} |
59 | 0 | } |
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|
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@Override |
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public void configureComponentMessageProcessor(MuleContext muleContext, |
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InterceptingChainMessageProcessorBuilder builder, |
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Component component) |
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{ |
66 | 0 | builder.chain(newJaxWsComponentMessageProcessor(muleContext, getComponentClass(component))); |
67 | 0 | builder.chain(component); |
68 | 0 | } |
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}, |
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|
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|
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|
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|
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|
75 | 0 | JAX_RS |
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{ |
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@Override |
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public void validate(Component component) throws FlowConstructInvalidException |
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{ |
80 | 0 | if (!(component instanceof JavaComponent)) |
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{ |
82 | 0 | throw new FlowConstructInvalidException( |
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MessageFactory.createStaticMessage("SimpleService can only expose instances of JAX-RS annotated JavaComponent instances. You provided a: " |
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+ component.getClass().getName())); |
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} |
86 | 0 | } |
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|
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@Override |
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public void configureComponentMessageProcessor(MuleContext muleContext, |
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InterceptingChainMessageProcessorBuilder builder, |
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Component component) |
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{ |
93 | 0 | builder.chain(newJaxRsComponentWrapper(muleContext, component)); |
94 | 0 | } |
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}, |
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|
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|
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|
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|
100 | 0 | DIRECT |
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{ |
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@Override |
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public void validate(Component component) throws FlowConstructInvalidException |
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{ |
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|
106 | 0 | } |
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|
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@Override |
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public void configureComponentMessageProcessor(MuleContext muleContext, |
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InterceptingChainMessageProcessorBuilder builder, |
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Component component) |
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{ |
113 | 0 | builder.chain(component); |
114 | 0 | } |
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}; |
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|
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public abstract void validate(Component component) throws FlowConstructInvalidException; |
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|
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public abstract void configureComponentMessageProcessor(MuleContext muleContext, |
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InterceptingChainMessageProcessorBuilder builder, |
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Component component); |
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|
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public static Type fromString(String string) |
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{ |
125 | 0 | String mepString = string.toUpperCase().replace('-', '_'); |
126 | 0 | return Type.valueOf(mepString); |
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} |
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} |
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|
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private final Component component; |
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private final Type type; |
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|
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public SimpleService(String name, |
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MuleContext muleContext, |
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MessageSource messageSource, |
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Component component, |
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Type type) throws MuleException |
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{ |
139 | 0 | super(name, muleContext); |
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|
141 | 0 | if (messageSource == null) |
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{ |
143 | 0 | throw new FlowConstructInvalidException( |
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MessageFactory.createStaticMessage("messageSource can't be null on: " + this.toString())); |
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} |
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|
147 | 0 | if (component == null) |
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{ |
149 | 0 | throw new FlowConstructInvalidException( |
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MessageFactory.createStaticMessage("component can't be null on: " + this.toString())); |
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} |
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|
153 | 0 | if (type == null) |
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{ |
155 | 0 | throw new FlowConstructInvalidException( |
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MessageFactory.createStaticMessage("type can't be null on: " + this.toString())); |
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} |
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|
159 | 0 | this.messageSource = messageSource; |
160 | 0 | this.component = component; |
161 | 0 | this.type = type; |
162 | 0 | } |
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|
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public Component getComponent() |
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{ |
166 | 0 | return component; |
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} |
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|
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@Override |
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protected void configureMessageProcessors(InterceptingChainMessageProcessorBuilder builder) |
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{ |
172 | 0 | builder.chain(new LoggingInterceptor()); |
173 | 0 | builder.chain(new FlowConstructStatisticsMessageObserver()); |
174 | 0 | type.configureComponentMessageProcessor(muleContext, builder, component); |
175 | 0 | } |
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|
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@Override |
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protected void validateConstruct() throws FlowConstructInvalidException |
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{ |
180 | 0 | super.validateConstruct(); |
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|
182 | 0 | if ((messageSource instanceof InboundEndpoint) |
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&& (!((InboundEndpoint) messageSource).getExchangePattern().equals( |
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MessageExchangePattern.REQUEST_RESPONSE))) |
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{ |
186 | 0 | throw new FlowConstructInvalidException( |
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MessageFactory.createStaticMessage("SimpleService only works with a request-response inbound endpoint."), |
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this); |
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} |
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|
191 | 0 | type.validate(component); |
192 | 0 | } |
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|
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private static Class<?> getComponentClass(Component component) |
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{ |
196 | 0 | if (component instanceof JavaComponent) |
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{ |
198 | 0 | return ((JavaComponent) component).getObjectFactory().getObjectClass(); |
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} |
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|
201 | 0 | return component.getClass(); |
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} |
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|
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private static MessageProcessor newJaxWsComponentMessageProcessor(MuleContext muleContext, |
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Class<?> componentClass) |
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{ |
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try |
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{ |
209 | 0 | MessageProcessorBuilder wsmpb = (MessageProcessorBuilder) ClassUtils.instanciateClass("org.mule.module.cxf.builder.WebServiceMessageProcessorBuilder"); |
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|
211 | 0 | Method setServiceClassMethod = ClassUtils.getMethod(wsmpb.getClass(), "setServiceClass", |
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new Class<?>[]{Class.class}); |
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|
214 | 0 | setServiceClassMethod.invoke(wsmpb, new Object[]{componentClass}); |
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|
216 | 0 | Method setFrontendMethod = ClassUtils.getMethod(wsmpb.getClass(), "setFrontend", |
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new Class<?>[]{String.class}); |
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|
219 | 0 | setFrontendMethod.invoke(wsmpb, new Object[]{"jaxws"}); |
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|
221 | 0 | ((MuleContextAware) wsmpb).setMuleContext(muleContext); |
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|
223 | 0 | return wsmpb.build(); |
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} |
225 | 0 | catch (Exception e) |
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{ |
227 | 0 | throw new MuleRuntimeException( |
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MessageFactory.createStaticMessage("Failed to configure the required web service infrastructure: are you missing the Mule CXF Module?"), |
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e); |
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} |
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} |
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|
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private static Component newJaxRsComponentWrapper(MuleContext muleContext, Component component) |
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{ |
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try |
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{ |
237 | 0 | Component jrc = (Component) ClassUtils.instanciateClass("org.mule.module.jersey.JerseyResourcesComponent"); |
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|
239 | 0 | Method setComponentsMethod = ClassUtils.getMethod(jrc.getClass(), "setComponents", |
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new Class<?>[]{List.class}); |
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|
242 | 0 | setComponentsMethod.invoke(jrc, new Object[]{Collections.singletonList(component)}); |
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|
244 | 0 | ((MuleContextAware) jrc).setMuleContext(muleContext); |
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|
246 | 0 | return jrc; |
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} |
248 | 0 | catch (Exception e) |
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{ |
250 | 0 | throw new MuleRuntimeException( |
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MessageFactory.createStaticMessage("Failed to configure the required web service infrastructure: are you missing the Mule Jersey Module?"), |
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e); |
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} |
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} |
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} |