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package org.mule.transport.servlet; |
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import org.mule.api.MuleEvent; |
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import org.mule.api.MuleException; |
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import org.mule.api.MuleMessage; |
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import org.mule.api.endpoint.EndpointException; |
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import org.mule.api.endpoint.EndpointURI; |
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import org.mule.api.endpoint.InboundEndpoint; |
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import org.mule.api.lifecycle.InitialisationException; |
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import org.mule.api.transport.MessageReceiver; |
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import org.mule.api.transport.NoReceiverForEndpointException; |
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import org.mule.api.transport.PropertyScope; |
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import org.mule.endpoint.DynamicURIInboundEndpoint; |
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import org.mule.endpoint.MuleEndpointURI; |
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import org.mule.routing.filters.WildcardFilter; |
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import org.mule.transport.http.HttpConnector; |
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import org.mule.transport.http.HttpConstants; |
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import org.mule.transport.http.HttpMessageReceiver; |
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import org.mule.transport.http.i18n.HttpMessages; |
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import org.mule.transport.service.TransportFactory; |
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import org.mule.transport.servlet.i18n.ServletMessages; |
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import org.mule.util.PropertiesUtils; |
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import java.io.IOException; |
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import java.util.Map; |
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import java.util.Properties; |
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import javax.servlet.ServletException; |
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import javax.servlet.http.HttpServletRequest; |
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import javax.servlet.http.HttpServletResponse; |
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|
43 | 0 | public class MuleReceiverServlet extends AbstractReceiverServlet |
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{ |
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|
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private static final long serialVersionUID = 6631307373079767439L; |
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|
50 | 0 | protected ServletConnector connector = null; |
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|
52 | 0 | private boolean useCachedHttpServletRequest = false; |
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|
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@Override |
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protected void doInit() throws ServletException |
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{ |
57 | 0 | connector = getOrCreateServletConnector(getServletConfig().getInitParameter(SERVLET_CONNECTOR_NAME_PROPERTY)); |
58 | 0 | } |
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|
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protected ServletConnector getOrCreateServletConnector(String name) throws ServletException |
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{ |
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ServletConnector servletConnector; |
63 | 0 | if (name == null) |
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{ |
65 | 0 | servletConnector = (ServletConnector) new TransportFactory(muleContext).getConnectorByProtocol("servlet"); |
66 | 0 | if (servletConnector == null) |
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{ |
68 | 0 | servletConnector = new ServletConnector(muleContext); |
69 | 0 | servletConnector.setName("_generatedServletConnector"); |
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try |
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{ |
72 | 0 | muleContext.getRegistry().registerConnector(servletConnector); |
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} |
74 | 0 | catch (MuleException e) |
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{ |
76 | 0 | throw new ServletException("Failed to register the ServletConnector", e); |
77 | 0 | } |
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} |
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} |
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else |
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{ |
82 | 0 | servletConnector = (ServletConnector) muleContext.getRegistry().lookupConnector(name); |
83 | 0 | if (servletConnector == null) |
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{ |
85 | 0 | throw new ServletException(ServletMessages.noServletConnectorFound(name).toString()); |
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} |
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} |
88 | 0 | this.useCachedHttpServletRequest = servletConnector.isUseCachedHttpServletRequest(); |
89 | 0 | return servletConnector; |
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} |
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|
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protected void setupRequestMessage(HttpServletRequest request, |
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MuleMessage requestMessage, |
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MessageReceiver receiver) |
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{ |
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|
97 | 0 | EndpointURI uri = receiver.getEndpointURI(); |
98 | 0 | String reqUri = request.getRequestURI(); |
99 | 0 | requestMessage.setProperty(HttpConnector.HTTP_REQUEST_PATH_PROPERTY, reqUri, PropertyScope.INBOUND); |
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|
101 | 0 | String queryString = request.getQueryString(); |
102 | 0 | if (queryString != null) |
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{ |
104 | 0 | reqUri += "?" + queryString; |
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} |
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|
107 | 0 | requestMessage.setProperty(HttpConnector.HTTP_REQUEST_PROPERTY, reqUri, PropertyScope.INBOUND); |
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|
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String path; |
110 | 0 | if ("servlet".equals(uri.getScheme())) |
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{ |
112 | 0 | path = HttpConnector.normalizeUrl(request.getContextPath()); |
113 | 0 | if ("/".equals(path)) |
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{ |
115 | 0 | path = HttpConnector.normalizeUrl(request.getServletPath()); |
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} |
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else |
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{ |
119 | 0 | path = path + HttpConnector.normalizeUrl(request.getServletPath()); |
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} |
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|
122 | 0 | String pathPart2 = uri.getAddress(); |
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|
124 | 0 | if (!path.endsWith("/")) |
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{ |
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|
127 | 0 | path = path + HttpConnector.normalizeUrl(pathPart2); |
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} |
129 | 0 | else if (pathPart2.startsWith("/")) |
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{ |
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|
132 | 0 | path = path + pathPart2.substring(1); |
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} |
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else |
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{ |
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|
137 | 0 | path = path + pathPart2; |
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} |
139 | 0 | } |
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else |
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{ |
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|
143 | 0 | path = HttpConnector.normalizeUrl(uri.getPath()); |
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} |
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|
146 | 0 | requestMessage.setProperty(HttpConnector.HTTP_CONTEXT_PATH_PROPERTY, path, PropertyScope.INBOUND); |
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|
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|
149 | 0 | setupRequestMessage(request, requestMessage); |
150 | 0 | } |
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|
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|
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protected void setupRequestMessage(HttpServletRequest request, MuleMessage requestMessage) |
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{ |
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|
156 | 0 | } |
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|
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@Override |
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protected void service(HttpServletRequest request, HttpServletResponse response) |
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throws ServletException, IOException |
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{ |
168 | 0 | String method = request.getMethod(); |
169 | 0 | if (method.equalsIgnoreCase(HttpConstants.METHOD_PATCH)) |
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{ |
171 | 0 | doAllMethods(request, response); |
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} |
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else |
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{ |
175 | 0 | super.service(request, response); |
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} |
177 | 0 | } |
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@Override |
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protected void doGet(HttpServletRequest req, HttpServletResponse resp) |
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throws ServletException, IOException |
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{ |
186 | 0 | doAllMethods(req, resp); |
187 | 0 | } |
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|
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@Override |
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protected void doPost(HttpServletRequest req, HttpServletResponse resp) |
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throws ServletException, IOException |
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{ |
193 | 0 | doAllMethods(req, resp); |
194 | 0 | } |
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|
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@Override |
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protected void doHead(HttpServletRequest req, HttpServletResponse resp) |
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throws ServletException, IOException |
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{ |
200 | 0 | doAllMethods(req, resp); |
201 | 0 | } |
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@Override |
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protected void doDelete(HttpServletRequest req, HttpServletResponse resp) |
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throws ServletException, IOException |
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{ |
206 | 0 | doAllMethods(req, resp); |
207 | 0 | } |
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|
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@Override |
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protected void doPut(HttpServletRequest req, HttpServletResponse resp) |
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throws ServletException, IOException |
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{ |
213 | 0 | doAllMethods(req, resp); |
214 | 0 | } |
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@Override |
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protected void doOptions(HttpServletRequest req, HttpServletResponse resp) |
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throws ServletException, IOException |
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{ |
219 | 0 | doAllMethods(req, resp); |
220 | 0 | } |
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@Override |
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protected void doTrace(HttpServletRequest req, HttpServletResponse resp) |
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throws ServletException, IOException |
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{ |
225 | 0 | doAllMethods(req, resp); |
226 | 0 | } |
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|
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protected void doAllMethods(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException |
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{ |
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try |
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{ |
232 | 0 | if (this.useCachedHttpServletRequest) |
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{ |
234 | 0 | request = new CachedHttpServletRequest(request); |
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} |
236 | 0 | MessageReceiver receiver = getReceiverForURI(request); |
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|
238 | 0 | MuleMessage requestMessage = receiver.createMuleMessage(request); |
239 | 0 | requestMessage.setProperty(HttpConnector.HTTP_METHOD_PROPERTY, request.getMethod(), PropertyScope.INBOUND); |
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|
241 | 0 | setupRequestMessage(request, requestMessage, receiver); |
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|
243 | 0 | MuleEvent event = routeMessage(receiver, requestMessage, request); |
244 | 0 | MuleMessage result = event == null ? null : event.getMessage(); |
245 | 0 | writeResponse(response, result); |
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} |
247 | 0 | catch (Exception e) |
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{ |
249 | 0 | handleException(e, ServletMessages.failedToProcessRequest().getMessage(), response); |
250 | 0 | } |
251 | 0 | } |
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|
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protected MuleEvent routeMessage(MessageReceiver receiver, MuleMessage requestMessage, HttpServletRequest request) |
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throws MuleException |
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{ |
256 | 0 | return receiver.routeMessage(requestMessage); |
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} |
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|
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protected MessageReceiver getReceiverForURI(HttpServletRequest httpServletRequest) |
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throws EndpointException |
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{ |
262 | 0 | String uri = getReceiverName(httpServletRequest); |
263 | 0 | if (uri == null) |
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{ |
265 | 0 | throw new EndpointException( |
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HttpMessages.unableToGetEndpointUri(httpServletRequest.getRequestURI())); |
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} |
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|
269 | 0 | MessageReceiver receiver = getReceivers().get(uri); |
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|
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|
273 | 0 | if (receiver == null) |
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{ |
275 | 0 | receiver = HttpMessageReceiver.findReceiverByStem(connector.getReceivers(), uri); |
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} |
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|
278 | 0 | if (receiver == null) |
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{ |
280 | 0 | receiver = matchReceiverByWildcard(uri, receiver); |
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} |
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|
283 | 0 | if (receiver == null) |
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{ |
285 | 0 | throw new NoReceiverForEndpointException(uri); |
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} |
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|
288 | 0 | InboundEndpoint endpoint = receiver.getEndpoint(); |
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|
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|
291 | 0 | if (!(endpoint instanceof DynamicURIInboundEndpoint)) |
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{ |
293 | 0 | endpoint = new DynamicURIInboundEndpoint(receiver.getEndpoint()); |
294 | 0 | receiver.setEndpoint(endpoint); |
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} |
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|
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|
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|
299 | 0 | EndpointURI epURI = new MuleEndpointURI(getRequestUrl(httpServletRequest), muleContext); |
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|
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try |
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{ |
303 | 0 | epURI.initialise(); |
304 | 0 | epURI.getParams().setProperty("servlet.endpoint", "true"); |
305 | 0 | ((DynamicURIInboundEndpoint) endpoint).setEndpointURI(epURI); |
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} |
307 | 0 | catch (InitialisationException e) |
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{ |
309 | 0 | throw new EndpointException(e); |
310 | 0 | } |
311 | 0 | return receiver; |
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} |
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|
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protected MessageReceiver matchReceiverByWildcard(String uri, MessageReceiver receiver) |
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{ |
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|
317 | 0 | for (Object key : getReceivers().keySet()) |
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{ |
319 | 0 | if (new WildcardFilter(key.toString()).accept(uri)) |
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{ |
321 | 0 | receiver = connector.getReceivers().get(key); |
322 | 0 | break; |
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} |
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} |
325 | 0 | return receiver; |
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} |
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|
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protected String getRequestUrl(HttpServletRequest httpServletRequest) |
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{ |
330 | 0 | StringBuffer url = new StringBuffer(); |
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|
332 | 0 | url.append(httpServletRequest.getScheme()); |
333 | 0 | url.append("://"); |
334 | 0 | url.append(httpServletRequest.getServerName()); |
335 | 0 | url.append(":"); |
336 | 0 | url.append(httpServletRequest.getServerPort()); |
337 | 0 | url.append(httpServletRequest.getServletPath()); |
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|
339 | 0 | String pathInfo = httpServletRequest.getPathInfo(); |
340 | 0 | if (pathInfo != null) |
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{ |
342 | 0 | url.append(pathInfo); |
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} |
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|
345 | 0 | String queryString = httpServletRequest.getQueryString(); |
346 | 0 | if (queryString != null) |
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{ |
348 | 0 | url.append("?"); |
349 | 0 | url.append(queryString); |
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} |
351 | 0 | return url.toString(); |
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} |
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|
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protected String getReceiverName(HttpServletRequest httpServletRequest) |
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{ |
356 | 0 | String name = httpServletRequest.getPathInfo(); |
357 | 0 | if (name == null) |
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{ |
359 | 0 | name = httpServletRequest.getServletPath(); |
360 | 0 | if (name == null) |
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{ |
362 | 0 | name = httpServletRequest.getParameter("endpoint"); |
363 | 0 | if (name == null) |
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{ |
365 | 0 | Properties params = PropertiesUtils.getPropertiesFromQueryString(httpServletRequest.getQueryString()); |
366 | 0 | name = params.getProperty("endpoint"); |
367 | 0 | if (name == null) |
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{ |
369 | 0 | return null; |
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} |
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} |
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} |
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} |
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|
375 | 0 | if (name.startsWith("/")) |
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{ |
377 | 0 | name = name.substring(1); |
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} |
379 | 0 | return name; |
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} |
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|
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protected Map<Object, MessageReceiver> getReceivers() |
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{ |
384 | 0 | return connector.getReceivers(); |
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} |
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} |