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package org.mule.providers.jbi.components; |
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import org.mule.MuleManager; |
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import org.mule.config.converters.QNameConverter; |
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import org.mule.util.concurrent.WaitableBoolean; |
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import java.util.HashMap; |
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import java.util.Map; |
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import javax.jbi.JBIException; |
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import javax.jbi.component.Component; |
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import javax.jbi.component.ComponentContext; |
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import javax.jbi.component.ComponentLifeCycle; |
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import javax.jbi.component.ServiceUnitManager; |
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import javax.jbi.management.DeploymentException; |
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import javax.jbi.messaging.DeliveryChannel; |
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import javax.jbi.messaging.ExchangeStatus; |
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import javax.jbi.messaging.Fault; |
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import javax.jbi.messaging.MessageExchange; |
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import javax.jbi.messaging.MessageExchangeFactory; |
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import javax.jbi.messaging.MessagingException; |
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import javax.jbi.servicedesc.ServiceEndpoint; |
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import javax.management.MBeanServer; |
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import javax.management.ObjectName; |
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import javax.resource.spi.work.Work; |
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import javax.resource.spi.work.WorkException; |
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import javax.resource.spi.work.WorkManager; |
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import javax.xml.namespace.QName; |
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import org.apache.commons.logging.Log; |
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import org.apache.commons.logging.LogFactory; |
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import org.w3c.dom.Document; |
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import org.w3c.dom.DocumentFragment; |
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|
52 | 0 | public abstract class AbstractJbiComponent implements Component, Work, ComponentLifeCycle |
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{ |
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public static final String IN = "in"; |
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public static final String OUT = "out"; |
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|
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|
60 | 0 | protected transient Log logger = LogFactory.getLog(getClass()); |
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|
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protected ComponentContext context; |
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|
64 | 0 | protected Map serviceDescriptions = new HashMap(); |
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protected QName service; |
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protected String name; |
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protected WorkManager workManager; |
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|
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protected DeliveryChannel deliveryChannel; |
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protected ObjectName mbeanName; |
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protected ServiceUnitManager serviceUnitManager; |
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|
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protected MessageExchangeFactory exchangeFactory; |
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|
80 | 0 | protected WaitableBoolean started = new WaitableBoolean(false); |
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|
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public ComponentLifeCycle getLifeCycle() |
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{ |
84 | 0 | return this; |
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} |
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|
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public ServiceUnitManager getServiceUnitManager() |
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{ |
89 | 0 | return serviceUnitManager; |
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} |
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|
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public Document getServiceDescription(ServiceEndpoint endpoint) |
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{ |
94 | 0 | if (logger.isDebugEnabled()) |
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{ |
96 | 0 | logger.debug("Querying service description for " + endpoint); |
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} |
98 | 0 | String key = getKey(endpoint); |
99 | 0 | Document doc = (Document)this.serviceDescriptions.get(key); |
100 | 0 | if (logger.isDebugEnabled()) |
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{ |
102 | 0 | if (doc != null) |
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{ |
104 | 0 | logger.debug("Description found"); |
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} |
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else |
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{ |
108 | 0 | logger.debug("Description not found"); |
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} |
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} |
111 | 0 | return doc; |
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} |
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|
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public void setServiceDescription(ServiceEndpoint endpoint, Document doc) |
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{ |
116 | 0 | if (logger.isDebugEnabled()) |
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{ |
118 | 0 | logger.debug("Setting service description for " + endpoint); |
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} |
120 | 0 | String key = getKey(endpoint); |
121 | 0 | this.serviceDescriptions.put(key, doc); |
122 | 0 | } |
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|
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private String getKey(ServiceEndpoint endpoint) |
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{ |
126 | 0 | StringBuffer sb = new StringBuffer(); |
127 | 0 | sb.append("{"); |
128 | 0 | sb.append(endpoint.getServiceName().getNamespaceURI()); |
129 | 0 | sb.append("}"); |
130 | 0 | sb.append(endpoint.getServiceName().getLocalPart()); |
131 | 0 | sb.append(":"); |
132 | 0 | sb.append(endpoint.getEndpointName()); |
133 | 0 | return sb.toString(); |
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} |
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public boolean isExchangeWithConsumerOkay(ServiceEndpoint endpoint, MessageExchange exchange) |
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{ |
144 | 0 | return true; |
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} |
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public boolean isExchangeWithProviderOkay(ServiceEndpoint endpoint, MessageExchange exchange) |
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{ |
155 | 0 | return true; |
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} |
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public ServiceEndpoint resolveEndpointReference(DocumentFragment epr) |
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{ |
165 | 0 | return null; |
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} |
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protected ObjectName createExtensionMBeanName() throws Exception |
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{ |
170 | 0 | return this.context.getMBeanNames().createCustomComponentMBeanName("extension"); |
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} |
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public Object getExtensionMBean() |
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{ |
175 | 0 | return null; |
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} |
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|
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public QName getService() |
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{ |
180 | 0 | return service; |
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} |
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public void setService(QName service) |
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{ |
185 | 0 | this.service = service; |
186 | 0 | } |
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|
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public String getName() |
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{ |
190 | 0 | return name; |
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} |
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|
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public void setName(String name) |
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{ |
195 | 0 | this.name = name; |
196 | 0 | } |
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|
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public WorkManager getWorkManager() |
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{ |
200 | 0 | return workManager; |
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} |
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public void setWorkManager(WorkManager workManager) |
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{ |
205 | 0 | this.workManager = workManager; |
206 | 0 | } |
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public synchronized final void init(ComponentContext context) throws JBIException |
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{ |
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try |
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{ |
219 | 0 | if (context.getComponentName() != null) |
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{ |
221 | 0 | name = context.getComponentName(); |
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} |
223 | 0 | if (name == null) |
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{ |
225 | 0 | throw new IllegalArgumentException("No name has been set for this component"); |
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} |
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|
228 | 0 | if (service == null) |
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{ |
230 | 0 | service = (QName)new QNameConverter().convert(QName.class, name); |
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} |
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|
233 | 0 | context.activateEndpoint(service, service.getLocalPart()); |
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|
235 | 0 | if (logger.isDebugEnabled()) |
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{ |
237 | 0 | logger.debug("Initializing component: " + name); |
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} |
239 | 0 | this.context = context; |
240 | 0 | deliveryChannel = context.getDeliveryChannel(); |
241 | 0 | exchangeFactory = deliveryChannel.createExchangeFactory(); |
242 | 0 | Object mbean = getExtensionMBean(); |
243 | 0 | if (serviceUnitManager == null) |
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{ |
245 | 0 | serviceUnitManager = new DefaultServiceUnitManager(); |
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} |
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|
248 | 0 | if (workManager == null) |
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{ |
250 | 0 | workManager = MuleManager.getInstance().getWorkManager(); |
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} |
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|
253 | 0 | if (mbean != null) |
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{ |
255 | 0 | if (mbeanName == null) |
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{ |
257 | 0 | this.mbeanName = createExtensionMBeanName(); |
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} |
259 | 0 | MBeanServer server = AbstractJbiComponent.this.context.getMBeanServer(); |
260 | 0 | if (server == null) |
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{ |
262 | 0 | throw new JBIException("null mBeanServer"); |
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} |
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|
265 | 0 | if (server.isRegistered(this.mbeanName)) |
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{ |
267 | 0 | server.unregisterMBean(this.mbeanName); |
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} |
269 | 0 | server.registerMBean(mbean, this.mbeanName); |
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} |
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|
272 | 0 | doInit(); |
273 | 0 | if (logger.isDebugEnabled()) |
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{ |
275 | 0 | logger.debug("Jbi Receiver Component initialized: " + name); |
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} |
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} |
278 | 0 | catch (JBIException e) |
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{ |
280 | 0 | throw e; |
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} |
282 | 0 | catch (Exception e) |
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{ |
284 | 0 | throw new JBIException("Error calling init on " + name, e); |
285 | 0 | } |
286 | 0 | } |
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|
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public final void shutDown() throws JBIException |
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{ |
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try |
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{ |
292 | 0 | if (logger.isDebugEnabled()) |
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{ |
294 | 0 | logger.debug("Shutting down component: " + getName()); |
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} |
296 | 0 | started.set(false); |
297 | 0 | doShutdown(); |
298 | 0 | if (this.mbeanName != null) |
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{ |
300 | 0 | MBeanServer server = context.getMBeanServer(); |
301 | 0 | if (server == null) |
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{ |
303 | 0 | throw new JBIException("null mBeanServer"); |
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} |
305 | 0 | if (server.isRegistered(this.mbeanName)) |
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{ |
307 | 0 | server.unregisterMBean(this.mbeanName); |
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} |
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} |
310 | 0 | this.context = null; |
311 | 0 | if (logger.isDebugEnabled()) |
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{ |
313 | 0 | logger.debug("Component shut down: " + getName()); |
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} |
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} |
316 | 0 | catch (JBIException e) |
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{ |
318 | 0 | throw e; |
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} |
320 | 0 | catch (Exception e) |
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{ |
322 | 0 | throw new JBIException("Error calling shutdown on " + getName(), e); |
323 | 0 | } |
324 | 0 | } |
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|
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public final void start() throws JBIException |
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{ |
328 | 0 | logger.debug("Starting Mule Jbi component: " + name); |
329 | 0 | started.set(true); |
330 | 0 | if (this instanceof MessageExchangeListener) |
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{ |
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try |
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{ |
334 | 0 | logger.debug("Starting ME thread for: " + name); |
335 | 0 | getWorkManager().scheduleWork(this); |
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} |
337 | 0 | catch (WorkException e) |
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{ |
339 | 0 | throw new JBIException(e); |
340 | 0 | } |
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} |
342 | 0 | doStart(); |
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|
344 | 0 | } |
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|
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public final void stop() throws JBIException |
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{ |
348 | 0 | started.set(false); |
349 | 0 | doStop(); |
350 | 0 | } |
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|
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protected void doInit() throws JBIException |
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{ |
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|
355 | 0 | } |
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|
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protected void doStart() throws JBIException |
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{ |
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|
360 | 0 | } |
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|
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protected void doStop() throws JBIException |
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{ |
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|
365 | 0 | } |
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|
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protected void doShutdown() throws JBIException |
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{ |
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|
370 | 0 | } |
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|
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public ObjectName getExtensionMBeanName() |
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{ |
374 | 0 | return mbeanName; |
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} |
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|
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public void setExtensionMBeanName(ObjectName mbeanName) |
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{ |
379 | 0 | this.mbeanName = mbeanName; |
380 | 0 | } |
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|
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public void release() |
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{ |
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|
385 | 0 | } |
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|
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public void run() |
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{ |
392 | 0 | while (started.get()) |
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{ |
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try |
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{ |
396 | 0 | final MessageExchange me = deliveryChannel.accept(); |
397 | 0 | if (me != null) |
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{ |
399 | 0 | getWorkManager().scheduleWork( |
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new MessageExchangeWorker(me, (MessageExchangeListener)this)); |
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} |
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} |
403 | 0 | catch (Exception e) |
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{ |
405 | 0 | logger.error(e.getMessage(), e); |
406 | 0 | } |
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} |
408 | 0 | } |
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|
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protected class MessageExchangeWorker implements Work |
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{ |
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private MessageExchange me; |
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private MessageExchangeListener listener; |
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|
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public MessageExchangeWorker(MessageExchange me, MessageExchangeListener listener) |
416 | 0 | { |
417 | 0 | this.me = me; |
418 | 0 | this.listener = listener; |
419 | 0 | } |
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|
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public void release() |
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{ |
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|
424 | 0 | } |
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|
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public void run() |
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{ |
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try |
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{ |
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try |
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{ |
432 | 0 | listener.onExchange(me); |
433 | 0 | done(me); |
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} |
435 | 0 | catch (MessagingException e) |
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{ |
437 | 0 | error(me, e); |
438 | 0 | } |
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} |
440 | 0 | catch (Exception e) |
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{ |
442 | 0 | handleException(e); |
443 | 0 | } |
444 | 0 | } |
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} |
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|
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protected void handleException(Throwable t) |
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{ |
449 | 0 | logger.error(t.getMessage(), t); |
450 | 0 | } |
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|
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protected void error(MessageExchange me, Fault fault) throws MessagingException |
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{ |
454 | 0 | me.setFault(fault); |
455 | 0 | me.setStatus(ExchangeStatus.ERROR); |
456 | 0 | context.getDeliveryChannel().send(me); |
457 | 0 | } |
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|
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protected void done(MessageExchange me) throws MessagingException |
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{ |
461 | 0 | me.setStatus(ExchangeStatus.DONE); |
462 | 0 | context.getDeliveryChannel().send(me); |
463 | 0 | } |
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|
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protected void error(MessageExchange me, Exception e) throws MessagingException |
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{ |
467 | 0 | me.setError(e); |
468 | 0 | me.setStatus(ExchangeStatus.ERROR); |
469 | 0 | context.getDeliveryChannel().send(me); |
470 | 0 | } |
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|
472 | 0 | private class DefaultServiceUnitManager implements ServiceUnitManager |
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{ |
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public String deploy(String string, String string1) throws DeploymentException |
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{ |
476 | 0 | return null; |
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} |
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|
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public void init(String string, String string1) throws DeploymentException |
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{ |
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|
482 | 0 | } |
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|
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public void start(String string) throws DeploymentException |
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{ |
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|
487 | 0 | } |
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|
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public void stop(String string) throws DeploymentException |
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{ |
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|
492 | 0 | } |
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|
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public void shutDown(String string) throws DeploymentException |
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{ |
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|
497 | 0 | } |
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|
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public String undeploy(String string, String string1) throws DeploymentException |
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{ |
501 | 0 | return null; |
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} |
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} |
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} |