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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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|
49 | 2 | 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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|
57 | 2 | protected transient Log logger = LogFactory.getLog(getClass()); |
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|
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protected ComponentContext context; |
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|
61 | 2 | protected Map serviceDescriptions = new HashMap(); |
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|
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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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|
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protected ObjectName mbeanName; |
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protected ServiceUnitManager serviceUnitManager; |
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protected MessageExchangeFactory exchangeFactory; |
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|
77 | 2 | protected WaitableBoolean started = new WaitableBoolean(false); |
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|
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public ComponentLifeCycle getLifeCycle() |
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{ |
81 | 0 | return this; |
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} |
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|
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public ServiceUnitManager getServiceUnitManager() |
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{ |
86 | 0 | return serviceUnitManager; |
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} |
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|
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public Document getServiceDescription(ServiceEndpoint endpoint) |
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{ |
91 | 0 | if (logger.isDebugEnabled()) |
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{ |
93 | 0 | logger.debug("Querying service description for " + endpoint); |
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} |
95 | 0 | String key = getKey(endpoint); |
96 | 0 | Document doc = (Document)this.serviceDescriptions.get(key); |
97 | 0 | if (logger.isDebugEnabled()) |
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{ |
99 | 0 | if (doc != null) |
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{ |
101 | 0 | logger.debug("Description found"); |
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} |
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else |
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{ |
105 | 0 | logger.debug("Description not found"); |
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} |
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} |
108 | 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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{ |
113 | 0 | if (logger.isDebugEnabled()) |
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{ |
115 | 0 | logger.debug("Setting service description for " + endpoint); |
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} |
117 | 0 | String key = getKey(endpoint); |
118 | 0 | this.serviceDescriptions.put(key, doc); |
119 | 0 | } |
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|
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private String getKey(ServiceEndpoint endpoint) |
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{ |
123 | 0 | StringBuffer sb = new StringBuffer(); |
124 | 0 | sb.append("{"); |
125 | 0 | sb.append(endpoint.getServiceName().getNamespaceURI()); |
126 | 0 | sb.append("}"); |
127 | 0 | sb.append(endpoint.getServiceName().getLocalPart()); |
128 | 0 | sb.append(":"); |
129 | 0 | sb.append(endpoint.getEndpointName()); |
130 | 0 | return sb.toString(); |
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} |
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public boolean isExchangeWithConsumerOkay(ServiceEndpoint endpoint, MessageExchange exchange) |
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{ |
141 | 0 | return true; |
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} |
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public boolean isExchangeWithProviderOkay(ServiceEndpoint endpoint, MessageExchange exchange) |
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{ |
152 | 0 | return true; |
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} |
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public ServiceEndpoint resolveEndpointReference(DocumentFragment epr) |
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{ |
162 | 0 | return null; |
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} |
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protected ObjectName createExtensionMBeanName() throws Exception |
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{ |
167 | 0 | return this.context.getMBeanNames().createCustomComponentMBeanName("extension"); |
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} |
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|
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public Object getExtensionMBean() |
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{ |
172 | 2 | return null; |
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} |
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|
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public QName getService() |
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{ |
177 | 8 | return service; |
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} |
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|
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public void setService(QName service) |
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{ |
182 | 0 | this.service = service; |
183 | 0 | } |
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|
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public String getName() |
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{ |
187 | 2 | return name; |
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} |
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|
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public void setName(String name) |
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{ |
192 | 2 | this.name = name; |
193 | 2 | } |
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|
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public WorkManager getWorkManager() |
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{ |
197 | 0 | return workManager; |
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} |
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|
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public void setWorkManager(WorkManager workManager) |
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{ |
202 | 0 | this.workManager = workManager; |
203 | 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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{ |
216 | 2 | if (context.getComponentName() != null) |
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{ |
218 | 0 | name = context.getComponentName(); |
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} |
220 | 2 | if (name == null) |
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{ |
222 | 0 | throw new IllegalArgumentException("No name has been set for this component"); |
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} |
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|
225 | 2 | if (service == null) |
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{ |
227 | 4 | service = (QName)new QNameConverter().convert(QName.class, name); |
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} |
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|
230 | 2 | context.activateEndpoint(service, service.getLocalPart()); |
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|
232 | 2 | if (logger.isDebugEnabled()) |
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{ |
234 | 0 | logger.debug("Initializing component: " + name); |
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} |
236 | 2 | this.context = context; |
237 | 2 | deliveryChannel = context.getDeliveryChannel(); |
238 | 2 | exchangeFactory = deliveryChannel.createExchangeFactory(); |
239 | 2 | Object mbean = getExtensionMBean(); |
240 | 2 | if (serviceUnitManager == null) |
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{ |
242 | 2 | serviceUnitManager = new DefaultServiceUnitManager(); |
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} |
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|
245 | 2 | if (workManager == null) |
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{ |
247 | 2 | workManager = MuleManager.getInstance().getWorkManager(); |
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} |
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|
250 | 2 | if (mbean != null) |
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{ |
252 | 0 | if (mbeanName == null) |
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{ |
254 | 0 | this.mbeanName = createExtensionMBeanName(); |
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} |
256 | 0 | MBeanServer server = AbstractJbiComponent.this.context.getMBeanServer(); |
257 | 0 | if (server == null) |
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{ |
259 | 0 | throw new JBIException("null mBeanServer"); |
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} |
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|
262 | 0 | if (server.isRegistered(this.mbeanName)) |
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{ |
264 | 0 | server.unregisterMBean(this.mbeanName); |
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} |
266 | 0 | server.registerMBean(mbean, this.mbeanName); |
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} |
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|
269 | 2 | doInit(); |
270 | 2 | if (logger.isDebugEnabled()) |
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{ |
272 | 0 | logger.debug("Jbi Receiver Component initialized: " + name); |
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} |
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} |
275 | 0 | catch (JBIException e) |
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{ |
277 | 0 | throw e; |
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} |
279 | 0 | catch (Exception e) |
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{ |
281 | 0 | throw new JBIException("Error calling init on " + name, e); |
282 | 2 | } |
283 | 2 | } |
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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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{ |
289 | 0 | if (logger.isDebugEnabled()) |
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{ |
291 | 0 | logger.debug("Shutting down component: " + getName()); |
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} |
293 | 0 | started.set(false); |
294 | 0 | doShutdown(); |
295 | 0 | if (this.mbeanName != null) |
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{ |
297 | 0 | MBeanServer server = context.getMBeanServer(); |
298 | 0 | if (server == null) |
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{ |
300 | 0 | throw new JBIException("null mBeanServer"); |
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} |
302 | 0 | if (server.isRegistered(this.mbeanName)) |
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{ |
304 | 0 | server.unregisterMBean(this.mbeanName); |
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} |
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} |
307 | 0 | this.context = null; |
308 | 0 | if (logger.isDebugEnabled()) |
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{ |
310 | 0 | logger.debug("Component shut down: " + getName()); |
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} |
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} |
313 | 0 | catch (JBIException e) |
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{ |
315 | 0 | throw e; |
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} |
317 | 0 | catch (Exception e) |
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{ |
319 | 0 | throw new JBIException("Error calling shutdown on " + getName(), e); |
320 | 0 | } |
321 | 0 | } |
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|
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public final void start() throws JBIException |
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{ |
325 | 0 | logger.debug("Starting Mule Jbi component: " + name); |
326 | 0 | started.set(true); |
327 | 0 | if (this instanceof MessageExchangeListener) |
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{ |
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try |
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{ |
331 | 0 | logger.debug("Starting ME thread for: " + name); |
332 | 0 | getWorkManager().scheduleWork(this); |
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} |
334 | 0 | catch (WorkException e) |
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{ |
336 | 0 | throw new JBIException(e); |
337 | 0 | } |
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} |
339 | 0 | doStart(); |
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|
341 | 0 | } |
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|
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public final void stop() throws JBIException |
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{ |
345 | 0 | started.set(false); |
346 | 0 | doStop(); |
347 | 0 | } |
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|
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protected void doInit() throws JBIException |
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{ |
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|
352 | 0 | } |
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|
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protected void doStart() throws JBIException |
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{ |
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|
357 | 0 | } |
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|
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protected void doStop() throws JBIException |
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{ |
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|
362 | 0 | } |
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|
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protected void doShutdown() throws JBIException |
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{ |
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|
367 | 0 | } |
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|
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public ObjectName getExtensionMBeanName() |
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{ |
371 | 0 | return mbeanName; |
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} |
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|
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public void setExtensionMBeanName(ObjectName mbeanName) |
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{ |
376 | 0 | this.mbeanName = mbeanName; |
377 | 0 | } |
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|
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public void release() |
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{ |
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|
382 | 0 | } |
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|
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|
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|
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|
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public void run() |
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{ |
389 | 0 | while (started.get()) |
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{ |
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try |
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{ |
393 | 0 | final MessageExchange me = deliveryChannel.accept(); |
394 | 0 | if (me != null) |
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{ |
396 | 0 | getWorkManager().scheduleWork( |
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new MessageExchangeWorker(me, (MessageExchangeListener)this)); |
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} |
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} |
400 | 0 | catch (Exception e) |
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{ |
402 | 0 | logger.error(e.getMessage(), e); |
403 | 0 | } |
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} |
405 | 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) |
413 | 0 | { |
414 | 0 | this.me = me; |
415 | 0 | this.listener = listener; |
416 | 0 | } |
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|
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public void release() |
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{ |
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|
421 | 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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{ |
429 | 0 | listener.onExchange(me); |
430 | 0 | done(me); |
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} |
432 | 0 | catch (MessagingException e) |
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{ |
434 | 0 | error(me, e); |
435 | 0 | } |
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} |
437 | 0 | catch (Exception e) |
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{ |
439 | 0 | handleException(e); |
440 | 0 | } |
441 | 0 | } |
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} |
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|
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protected void handleException(Throwable t) |
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{ |
446 | 0 | logger.error(t.getMessage(), t); |
447 | 0 | } |
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|
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protected void error(MessageExchange me, Fault fault) throws MessagingException |
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{ |
451 | 0 | me.setFault(fault); |
452 | 0 | me.setStatus(ExchangeStatus.ERROR); |
453 | 0 | context.getDeliveryChannel().send(me); |
454 | 0 | } |
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|
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protected void done(MessageExchange me) throws MessagingException |
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{ |
458 | 0 | me.setStatus(ExchangeStatus.DONE); |
459 | 0 | context.getDeliveryChannel().send(me); |
460 | 0 | } |
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|
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protected void error(MessageExchange me, Exception e) throws MessagingException |
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{ |
464 | 0 | me.setError(e); |
465 | 0 | me.setStatus(ExchangeStatus.ERROR); |
466 | 0 | context.getDeliveryChannel().send(me); |
467 | 0 | } |
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|
469 | 2 | 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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{ |
473 | 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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|
479 | 0 | } |
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|
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public void start(String string) throws DeploymentException |
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{ |
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|
484 | 0 | } |
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|
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public void stop(String string) throws DeploymentException |
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{ |
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|
489 | 0 | } |
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|
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public void shutDown(String string) throws DeploymentException |
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{ |
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|
494 | 0 | } |
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|
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public String undeploy(String string, String string1) throws DeploymentException |
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{ |
498 | 0 | return null; |
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} |
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} |
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} |