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package org.mule.impl.internal.admin; |
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import org.mule.MuleException; |
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import org.mule.MuleManager; |
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import org.mule.config.MuleProperties; |
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import org.mule.config.i18n.CoreMessages; |
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import org.mule.impl.MuleDescriptor; |
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import org.mule.impl.MuleEvent; |
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import org.mule.impl.MuleMessage; |
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import org.mule.impl.MuleSession; |
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import org.mule.impl.RequestContext; |
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import org.mule.impl.endpoint.MuleEndpoint; |
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import org.mule.impl.endpoint.MuleEndpointURI; |
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import org.mule.impl.internal.notifications.AdminNotification; |
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import org.mule.impl.message.ExceptionPayload; |
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import org.mule.impl.model.ModelHelper; |
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import org.mule.providers.AbstractConnector; |
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import org.mule.providers.NullPayload; |
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import org.mule.transformers.wire.WireFormat; |
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import org.mule.umo.UMODescriptor; |
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import org.mule.umo.UMOEvent; |
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import org.mule.umo.UMOEventContext; |
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import org.mule.umo.UMOException; |
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import org.mule.umo.UMOMessage; |
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import org.mule.umo.UMOSession; |
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import org.mule.umo.endpoint.UMOEndpoint; |
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import org.mule.umo.endpoint.UMOEndpointURI; |
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import org.mule.umo.lifecycle.Callable; |
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import org.mule.umo.lifecycle.Initialisable; |
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import org.mule.umo.lifecycle.InitialisationException; |
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import org.mule.umo.provider.UMOConnector; |
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import org.mule.umo.transformer.UMOTransformer; |
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import java.io.ByteArrayInputStream; |
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import java.util.HashMap; |
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import java.util.Map; |
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import org.apache.commons.collections.MapUtils; |
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import org.apache.commons.io.output.ByteArrayOutputStream; |
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import org.apache.commons.logging.Log; |
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import org.apache.commons.logging.LogFactory; |
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|
60 | 0 | public class MuleManagerComponent implements Callable, Initialisable |
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{ |
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65 | 0 | protected static final Log logger = LogFactory.getLog(MuleManagerComponent.class); |
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public static final String MANAGER_COMPONENT_NAME = "_muleManagerComponent"; |
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public static final String MANAGER_ENDPOINT_NAME = "_muleManagerEndpoint"; |
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protected WireFormat wireFormat; |
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public void initialise() throws InitialisationException |
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{ |
77 | 0 | if (wireFormat == null) |
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{ |
79 | 0 | throw new InitialisationException(CoreMessages.objectIsNull("wireFormat"), this); |
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} |
81 | 0 | } |
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|
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public Object onCall(UMOEventContext context) throws Exception |
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{ |
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Object result; |
86 | 0 | logger.debug("Message received by MuleManagerComponent"); |
87 | 0 | ByteArrayInputStream in = new ByteArrayInputStream(context.getTransformedMessageAsBytes()); |
88 | 0 | AdminNotification action = (AdminNotification) wireFormat.read(in); |
89 | 0 | if (AdminNotification.ACTION_INVOKE == action.getAction()) |
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{ |
91 | 0 | result = invokeAction(action, context); |
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} |
93 | 0 | else if (AdminNotification.ACTION_SEND == action.getAction() || |
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AdminNotification.ACTION_DISPATCH == action.getAction()) |
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{ |
96 | 0 | result = sendAction(action, context); |
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} |
98 | 0 | else if (AdminNotification.ACTION_RECEIVE == action.getAction()) |
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{ |
100 | 0 | result = receiveAction(action, context); |
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} |
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else |
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{ |
104 | 0 | result = handleException(null, new MuleException( |
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CoreMessages.eventTypeNotRecognised("AdminNotification:" + action.getAction()))); |
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} |
107 | 0 | return result; |
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} |
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|
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protected Object invokeAction(AdminNotification action, UMOEventContext context) throws UMOException |
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{ |
112 | 0 | String destComponent = null; |
113 | 0 | UMOMessage result = null; |
114 | 0 | String endpoint = action.getResourceIdentifier(); |
115 | 0 | if (action.getResourceIdentifier().startsWith("mule:")) |
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{ |
117 | 0 | destComponent = endpoint.substring(endpoint.lastIndexOf("/") + 1); |
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} |
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else |
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{ |
121 | 0 | destComponent = endpoint; |
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} |
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|
124 | 0 | if (destComponent != null) |
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{ |
126 | 0 | UMOSession session = new MuleSession(ModelHelper.getComponent(destComponent)); |
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|
131 | 0 | UMOEndpoint ep = new MuleEndpoint(RequestContext.getEvent().getEndpoint()); |
132 | 0 | ep.setTransformer(null); |
133 | 0 | UMOEvent event = new MuleEvent(action.getMessage(), ep, context.getSession(), |
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context.isSynchronous()); |
135 | 0 | event = RequestContext.setEvent(event); |
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|
137 | 0 | if (context.isSynchronous()) |
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{ |
139 | 0 | result = session.getComponent().sendEvent(event); |
140 | 0 | ByteArrayOutputStream out = new ByteArrayOutputStream(); |
141 | 0 | wireFormat.write(out, result); |
142 | 0 | return out.toByteArray(); |
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} |
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else |
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{ |
146 | 0 | session.getComponent().dispatchEvent(event); |
147 | 0 | return null; |
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} |
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} |
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else |
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{ |
152 | 0 | return handleException(result, new MuleException( |
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CoreMessages.couldNotDetermineDestinationComponentFromEndpoint(endpoint))); |
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} |
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} |
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protected Object sendAction(AdminNotification action, UMOEventContext context) throws UMOException |
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{ |
159 | 0 | UMOMessage result = null; |
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try |
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{ |
162 | 0 | UMOEndpoint endpoint = new MuleEndpoint(action.getResourceIdentifier(), false); |
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|
164 | 0 | if (AdminNotification.ACTION_DISPATCH == action.getAction()) |
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{ |
166 | 0 | context.dispatchEvent(action.getMessage(), endpoint); |
167 | 0 | return null; |
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} |
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else |
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{ |
171 | 0 | endpoint.setRemoteSync(true); |
172 | 0 | result = context.sendEvent(action.getMessage(), endpoint); |
173 | 0 | if (result == null) |
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{ |
175 | 0 | return null; |
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} |
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else |
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{ |
179 | 0 | ByteArrayOutputStream out = new ByteArrayOutputStream(); |
180 | 0 | wireFormat.write(out, result); |
181 | 0 | return out.toByteArray(); |
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} |
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} |
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} |
185 | 0 | catch (Exception e) |
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{ |
187 | 0 | return handleException(result, e); |
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} |
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} |
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|
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protected Object receiveAction(AdminNotification action, UMOEventContext context) throws UMOException |
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{ |
193 | 0 | UMOMessage result = null; |
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try |
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{ |
196 | 0 | UMOEndpointURI endpointUri = new MuleEndpointURI(action.getResourceIdentifier()); |
197 | 0 | UMOEndpoint endpoint = MuleEndpoint.getOrCreateEndpointForUri(endpointUri, |
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UMOEndpoint.ENDPOINT_TYPE_SENDER); |
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|
200 | 0 | long timeout = MapUtils.getLongValue(action.getProperties(), |
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MuleProperties.MULE_EVENT_TIMEOUT_PROPERTY, MuleManager.getConfiguration() |
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.getSynchronousEventTimeout()); |
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|
204 | 0 | UMOEndpointURI ep = new MuleEndpointURI(action.getResourceIdentifier()); |
205 | 0 | result = endpoint.getConnector().receive(ep, timeout); |
206 | 0 | if (result != null) |
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{ |
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|
209 | 0 | UMOTransformer trans = ((AbstractConnector) endpoint.getConnector()).getDefaultInboundTransformer(); |
210 | 0 | if (trans != null) |
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{ |
212 | 0 | Object payload = trans.transform(result.getPayload()); |
213 | 0 | result = new MuleMessage(payload, result); |
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} |
215 | 0 | ByteArrayOutputStream out = new ByteArrayOutputStream(); |
216 | 0 | wireFormat.write(out, result); |
217 | 0 | return out.toByteArray(); |
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} |
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else |
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{ |
221 | 0 | return null; |
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} |
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} |
224 | 0 | catch (Exception e) |
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{ |
226 | 0 | return handleException(result, e); |
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} |
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|
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} |
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public static final UMODescriptor getDescriptor(UMOConnector connector, |
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UMOEndpointURI endpointUri, |
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WireFormat wireFormat) throws UMOException |
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{ |
235 | 0 | UMOEndpoint endpoint = new MuleEndpoint(); |
236 | 0 | endpoint.setConnector(connector); |
237 | 0 | endpoint.setEndpointURI(endpointUri); |
238 | 0 | endpoint.setName(MANAGER_ENDPOINT_NAME); |
239 | 0 | endpoint.setType(UMOEndpoint.ENDPOINT_TYPE_RECEIVER); |
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|
241 | 0 | MuleDescriptor descriptor = new MuleDescriptor(); |
242 | 0 | descriptor.setName(MANAGER_COMPONENT_NAME); |
243 | 0 | descriptor.setInboundEndpoint(endpoint); |
244 | 0 | descriptor.setImplementation(MuleManagerComponent.class.getName()); |
245 | 0 | descriptor.setContainerManaged(false); |
246 | 0 | Map props = new HashMap(); |
247 | 0 | props.put("wireFormat", wireFormat); |
248 | 0 | descriptor.setProperties(props); |
249 | 0 | return descriptor; |
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} |
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protected String handleException(UMOMessage result, Throwable e) |
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{ |
263 | 0 | logger.error("Failed to process admin request: " + e.getMessage(), e); |
264 | 0 | if (result == null) |
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{ |
266 | 0 | result = new MuleMessage(NullPayload.getInstance(), (Map) null); |
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} |
268 | 0 | result.setExceptionPayload(new ExceptionPayload(e)); |
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try |
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{ |
271 | 0 | ByteArrayOutputStream out = new ByteArrayOutputStream(); |
272 | 0 | wireFormat.write(out, result); |
273 | 0 | return out.toString(MuleManager.getConfiguration().getEncoding()); |
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} |
275 | 0 | catch (Exception e1) |
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{ |
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|
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|
279 | 0 | logger.error("Failed to format message, using direct string (details at debug level): " + e1.getMessage()); |
280 | 0 | logger.debug(e1.toString(), e1); |
281 | 0 | return e.getMessage(); |
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} |
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} |
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public WireFormat getWireFormat() |
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{ |
287 | 0 | return wireFormat; |
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} |
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public void setWireFormat(WireFormat wireFormat) |
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{ |
292 | 0 | this.wireFormat = wireFormat; |
293 | 0 | } |
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} |