1 | |
|
2 | |
|
3 | |
|
4 | |
|
5 | |
|
6 | |
|
7 | |
package org.mule.construct; |
8 | |
|
9 | |
import org.mule.MessageExchangePattern; |
10 | |
import org.mule.api.MuleContext; |
11 | |
import org.mule.api.MuleException; |
12 | |
import org.mule.api.MuleRuntimeException; |
13 | |
import org.mule.api.component.Component; |
14 | |
import org.mule.api.component.JavaComponent; |
15 | |
import org.mule.api.construct.FlowConstructInvalidException; |
16 | |
import org.mule.api.context.MuleContextAware; |
17 | |
import org.mule.api.endpoint.InboundEndpoint; |
18 | |
import org.mule.api.processor.MessageProcessor; |
19 | |
import org.mule.api.processor.MessageProcessorBuilder; |
20 | |
import org.mule.api.processor.MessageProcessorChainBuilder; |
21 | |
import org.mule.api.source.MessageSource; |
22 | |
import org.mule.config.i18n.MessageFactory; |
23 | |
import org.mule.construct.processor.FlowConstructStatisticsMessageProcessor; |
24 | |
import org.mule.interceptor.LoggingInterceptor; |
25 | |
import org.mule.interceptor.ProcessingTimeInterceptor; |
26 | |
import org.mule.util.ClassUtils; |
27 | |
|
28 | |
import java.lang.reflect.Method; |
29 | |
import java.util.List; |
30 | |
|
31 | |
import edu.emory.mathcs.backport.java.util.Collections; |
32 | |
|
33 | |
|
34 | |
|
35 | |
|
36 | |
|
37 | 0 | public class SimpleService extends AbstractFlowConstruct |
38 | |
{ |
39 | 0 | public enum Type |
40 | |
{ |
41 | |
|
42 | |
|
43 | |
|
44 | |
|
45 | 0 | JAX_WS |
46 | |
{ |
47 | |
@Override |
48 | |
public void validate(Component component) throws FlowConstructInvalidException |
49 | |
{ |
50 | 0 | if (!(component instanceof JavaComponent)) |
51 | |
{ |
52 | 0 | throw new FlowConstructInvalidException( |
53 | |
MessageFactory.createStaticMessage("SimpleService can only expose instances of JAX-WS annotated JavaComponent instances. You provided a: " |
54 | |
+ component.getClass().getName())); |
55 | |
} |
56 | 0 | } |
57 | |
|
58 | |
@Override |
59 | |
public void configureComponentMessageProcessor(MuleContext muleContext, |
60 | |
MessageProcessorChainBuilder builder, |
61 | |
Component component) |
62 | |
{ |
63 | 0 | builder.chain(newJaxWsComponentMessageProcessor(muleContext, getComponentClass(component))); |
64 | 0 | builder.chain(component); |
65 | 0 | } |
66 | |
}, |
67 | |
|
68 | |
|
69 | |
|
70 | |
|
71 | |
|
72 | 0 | JAX_RS |
73 | |
{ |
74 | |
@Override |
75 | |
public void validate(Component component) throws FlowConstructInvalidException |
76 | |
{ |
77 | 0 | if (!(component instanceof JavaComponent)) |
78 | |
{ |
79 | 0 | throw new FlowConstructInvalidException( |
80 | |
MessageFactory.createStaticMessage("SimpleService can only expose instances of JAX-RS annotated JavaComponent instances. You provided a: " |
81 | |
+ component.getClass().getName())); |
82 | |
} |
83 | 0 | } |
84 | |
|
85 | |
@Override |
86 | |
public void configureComponentMessageProcessor(MuleContext muleContext, |
87 | |
MessageProcessorChainBuilder builder, |
88 | |
Component component) |
89 | |
{ |
90 | 0 | builder.chain(newJaxRsComponentWrapper(muleContext, component)); |
91 | 0 | } |
92 | |
}, |
93 | |
|
94 | |
|
95 | |
|
96 | |
|
97 | 0 | DIRECT |
98 | |
{ |
99 | |
@Override |
100 | |
public void validate(Component component) throws FlowConstructInvalidException |
101 | |
{ |
102 | |
|
103 | 0 | } |
104 | |
|
105 | |
@Override |
106 | |
public void configureComponentMessageProcessor(MuleContext muleContext, |
107 | |
MessageProcessorChainBuilder builder, |
108 | |
Component component) |
109 | |
{ |
110 | 0 | builder.chain(component); |
111 | 0 | } |
112 | |
}; |
113 | |
|
114 | |
public abstract void validate(Component component) throws FlowConstructInvalidException; |
115 | |
|
116 | |
public abstract void configureComponentMessageProcessor(MuleContext muleContext, |
117 | |
MessageProcessorChainBuilder builder, |
118 | |
Component component); |
119 | |
|
120 | |
public static Type fromString(String string) |
121 | |
{ |
122 | 0 | String mepString = string.toUpperCase().replace('-', '_'); |
123 | 0 | return Type.valueOf(mepString); |
124 | |
} |
125 | |
} |
126 | |
|
127 | |
private final Component component; |
128 | |
private final Type type; |
129 | |
|
130 | |
public SimpleService(String name, |
131 | |
MuleContext muleContext, |
132 | |
MessageSource messageSource, |
133 | |
Component component, |
134 | |
Type type) throws MuleException |
135 | |
{ |
136 | 0 | super(name, muleContext); |
137 | |
|
138 | 0 | if (messageSource == null) |
139 | |
{ |
140 | 0 | throw new FlowConstructInvalidException( |
141 | |
MessageFactory.createStaticMessage("messageSource can't be null on: " + this.toString())); |
142 | |
} |
143 | |
|
144 | 0 | if (component == null) |
145 | |
{ |
146 | 0 | throw new FlowConstructInvalidException( |
147 | |
MessageFactory.createStaticMessage("component can't be null on: " + this.toString())); |
148 | |
} |
149 | |
|
150 | 0 | if (type == null) |
151 | |
{ |
152 | 0 | throw new FlowConstructInvalidException( |
153 | |
MessageFactory.createStaticMessage("type can't be null on: " + this.toString())); |
154 | |
} |
155 | |
|
156 | 0 | this.messageSource = messageSource; |
157 | 0 | this.component = component; |
158 | 0 | this.type = type; |
159 | 0 | } |
160 | |
|
161 | |
public Component getComponent() |
162 | |
{ |
163 | 0 | return component; |
164 | |
} |
165 | |
|
166 | |
@Override |
167 | |
protected void configureMessageProcessors(MessageProcessorChainBuilder builder) |
168 | |
{ |
169 | 0 | builder.chain(new ProcessingTimeInterceptor()); |
170 | 0 | builder.chain(new LoggingInterceptor()); |
171 | 0 | builder.chain(new FlowConstructStatisticsMessageProcessor()); |
172 | 0 | type.configureComponentMessageProcessor(muleContext, builder, component); |
173 | 0 | } |
174 | |
|
175 | |
@Override |
176 | |
protected void validateConstruct() throws FlowConstructInvalidException |
177 | |
{ |
178 | 0 | super.validateConstruct(); |
179 | |
|
180 | 0 | if ((messageSource instanceof InboundEndpoint) |
181 | |
&& (!((InboundEndpoint) messageSource).getExchangePattern().equals( |
182 | |
MessageExchangePattern.REQUEST_RESPONSE))) |
183 | |
{ |
184 | 0 | throw new FlowConstructInvalidException( |
185 | |
MessageFactory.createStaticMessage("SimpleService only works with a request-response inbound endpoint."), |
186 | |
this); |
187 | |
} |
188 | |
|
189 | 0 | type.validate(component); |
190 | 0 | } |
191 | |
|
192 | |
private static Class<?> getComponentClass(Component component) |
193 | |
{ |
194 | 0 | if (component instanceof JavaComponent) |
195 | |
{ |
196 | 0 | return ((JavaComponent) component).getObjectFactory().getObjectClass(); |
197 | |
} |
198 | |
|
199 | 0 | return component.getClass(); |
200 | |
} |
201 | |
|
202 | |
private static MessageProcessor newJaxWsComponentMessageProcessor(MuleContext muleContext, |
203 | |
Class<?> componentClass) |
204 | |
{ |
205 | |
try |
206 | |
{ |
207 | 0 | MessageProcessorBuilder wsmpb = (MessageProcessorBuilder) ClassUtils.instanciateClass("org.mule.module.cxf.builder.WebServiceMessageProcessorBuilder"); |
208 | |
|
209 | 0 | Method setServiceClassMethod = ClassUtils.getMethod(wsmpb.getClass(), "setServiceClass", |
210 | |
new Class<?>[]{Class.class}); |
211 | |
|
212 | 0 | setServiceClassMethod.invoke(wsmpb, componentClass); |
213 | |
|
214 | 0 | Method setFrontendMethod = ClassUtils.getMethod(wsmpb.getClass(), "setFrontend", |
215 | |
new Class<?>[]{String.class}); |
216 | |
|
217 | 0 | setFrontendMethod.invoke(wsmpb, "jaxws"); |
218 | |
|
219 | 0 | ((MuleContextAware) wsmpb).setMuleContext(muleContext); |
220 | |
|
221 | 0 | return wsmpb.build(); |
222 | |
} |
223 | 0 | catch (Exception e) |
224 | |
{ |
225 | 0 | throw new MuleRuntimeException( |
226 | |
MessageFactory.createStaticMessage("Failed to configure the required web service infrastructure: are you missing the Mule CXF Module?"), |
227 | |
e); |
228 | |
} |
229 | |
} |
230 | |
|
231 | |
private static Component newJaxRsComponentWrapper(MuleContext muleContext, Component component) |
232 | |
{ |
233 | |
try |
234 | |
{ |
235 | 0 | Component jrc = (Component) ClassUtils.instanciateClass("org.mule.module.jersey.JerseyResourcesComponent"); |
236 | |
|
237 | 0 | Method setComponentsMethod = ClassUtils.getMethod(jrc.getClass(), "setComponents", |
238 | |
new Class<?>[]{List.class}); |
239 | |
|
240 | 0 | setComponentsMethod.invoke(jrc, Collections.singletonList(component)); |
241 | |
|
242 | 0 | ((MuleContextAware) jrc).setMuleContext(muleContext); |
243 | |
|
244 | 0 | return jrc; |
245 | |
} |
246 | 0 | catch (Exception e) |
247 | |
{ |
248 | 0 | throw new MuleRuntimeException( |
249 | |
MessageFactory.createStaticMessage("Failed to configure the required web service infrastructure: are you missing the Mule Jersey Module?"), |
250 | |
e); |
251 | |
} |
252 | |
} |
253 | |
|
254 | |
@Override |
255 | |
public String getConstructType() |
256 | |
{ |
257 | 0 | return "Simple-Service"; |
258 | |
} |
259 | |
} |