Changes for page Web Services-Controlling WSDL Service Location
Last modified by Pascal Robert on 2007/09/03 19:24
From version 3.1
edited by Pascal Robert
on 2007/09/03 19:24
on 2007/09/03 19:24
Change comment:
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To version 2.1
edited by smmccraw
on 2007/07/08 10:35
on 2007/07/08 10:35
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Summary
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... ... @@ -1,1 +1,1 @@ 1 -Web Services-Controlling WSDL Service Location 1 +Programming__WebObjects-Web Services-Controlling WSDL Service Location - Author
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... ... @@ -1,1 +1,1 @@ 1 -XWiki. probert1 +XWiki.smmccraw - Content
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... ... @@ -1,10 +1,10 @@ 1 -This documentation was written by Andrew Lindesay ( [[http://www.lindesay.co.nz]]) in 2006 as part of supported code in the LEWOStuff framework, but this material has been transcribed here. It was written around the time of WebObjects 5.2 and 5.3 on the 1.4 JVM.1 +This documentation was written by Andrew Lindesay (http:~/~/www.lindesay.co.nz) in 2006 as part of supported code in the LEWOStuff framework, but this material has been transcribed here. It was written around the time of WebObjects 5.2 and 5.3 on the 1.4 JVM. 2 2 3 3 AXIS provides a number of handlers for ultimately executing the WS. This generally works in the WebObjects environment out of the box. However, in the case of a servlet deployment, the URLs are manipulated by the servlet container so they look something like this. 4 4 5 5 {{panel}} 6 6 7 -...ects/FOO.woa/ws/FooService;jsessionid=abc.i1?wsdl 7 + ...ects/FOO.woa/ws/FooService<font color="red">;jsessionid=abc.i1</font>?wsdl 8 8 9 9 {{/panel}} 10 10 ... ... @@ -11,12 +11,13 @@ 11 11 If a client starts a session on a WS invocation then you want all subsequent requests to return to this same servlet container (Here we assume a redundant deployment where there are a number of servlet containers.) where the session resides. However the servlet-container's HTTP adaptor typically only knows this by looking at the modified URL. Unfortunately, the default WSDL generated by AXIS would have a section like this. 12 12 13 13 {{code}} 14 - 15 15 ... 16 16 <wsdl:service name="FooService"> 16 +{panel} 17 17 <wsdl:port name="FooService" binding="impl:FooService SoapBinding"> 18 18 <wsdlsoap:address location="http://foo.co.nz/FOO/WebObjects/FOO.woa/ws/FooService"/> 19 19 </wsdl:port> 20 +{panel} 20 20 </wsdl:service> 21 21 ... 22 22 ... ... @@ -25,14 +25,15 @@ 25 25 A WSDL like this does not contain the modified URL caused by the context having a session in the location for the service. The example handler //LEWOWebServicesWSDLLocationHandler// below which is supplied in LEWOStuff will correct the location supplied in the WSDL to contain the session information. To install this handler for use in WebObjects, locate the //server.wsdd// file within your project and modify the following section so that it appears as follows. 26 26 27 27 {{code}} 28 - 29 29 ... 30 30 <transport name="http"> 31 +{panel} 31 31 <requestFlow> 32 32 <handler type="HTTPActionHandler"/> 33 33 <handler type="URLMapper"/> 34 34 <handler type="java:nz.co.lindesay.common.webobjects.LEWOWebServicesWSDLLocationHandler"/> 35 35 </requestFlow> 37 +{panel} 36 36 </transport> 37 37 38 38 {{/code}} ... ... @@ -56,13 +56,17 @@ 56 56 following conditions are met: 57 57 58 58 * Redistributions of source code must retain the above 61 +{panel} 59 59 copyright notice, this list of conditions and the 60 60 following disclaimer. 64 +{panel} 61 61 62 62 * Redistributions in binary form must reproduce the above 67 +{panel} 63 63 copyright notice, this list of conditions and the 64 64 following disclaimer in the documentation and/or other 65 65 materials provided with the distribution. 71 +{panel} 66 66 67 67 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 68 68 CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, ... ... @@ -88,11 +88,12 @@ 88 88 import org.apache.axis.*; 89 89 90 90 /** 97 +{panel} 91 91 * <P>This class is an AXIS request handler that is designed to 92 92 * manipulate the outbound WSDL that is generated for a 93 93 * request. The manipulation undertaken here is to modify the 94 94 * location of the actual service. The reason for doing this is 95 - * that if you have a web service deployed into a servlet 102 + * that if you have a web service deployed into a servlet 96 96 * container as a WO application, the session'ed URLs can look 97 97 * a bit like this.</P> 98 98 * ... ... @@ -109,11 +109,12 @@ 109 109 * handler list as the last item in the list. This should be the 110 110 * request flow in the HTTP transport section.</P> 111 111 * 112 - * <P><TT> <handler type="java:nz.co.lindesay.common.webobjects.LEWOWebServicesWSDLLocationHandler"/></TT></P>119 + * <P><TT><handler type="java:nz.co.lindesay.common.webobjects.LEWOWebServicesWSDLLocationHandler"/></TT></P> 113 113 * 114 114 * <P>This should also work with the "<I>wotaskd</I>" deployment 115 115 * style as well.</P> 116 116 */ 124 +{panel} 117 117 118 118 public class LEWOWebServicesWSDLLocationHandler extends org.apache.axis.handlers.BasicHandler 119 119 { ... ... @@ -120,87 +120,91 @@ 120 120 121 121 // -------------------------------------------------------------- 122 122 123 - 131 + public LEWOWebServicesWSDLLocationHandler() { super(); } 124 124 125 125 // -------------------------------------------------------------- 126 126 127 127 /** 136 +{panel} 128 128 * <P>This is the AXIS hook where we can manipulate the outbound 129 129 * WSDL.</P> 130 130 */ 140 +{panel} 131 131 132 - 133 - 134 - 135 - 136 - 137 - 138 - 139 - 140 - 141 - 142 - 143 - 144 - 145 - 146 - 147 - 148 - 149 - 150 - 151 - 152 - 153 - 154 - 155 - 156 - 157 - 158 - 159 - 160 - 161 - 142 + public void generateWSDL(MessageContext msgContext) throws AxisFault 143 + { 144 + WOContext context = WOWebServiceUtilities.currentWOContext(); 145 + WORequest request = context.request(); 146 + String host = LEWOHelper.getExternalHostnameFromInboundRequest(request); 147 + int port = LEWOHelper.getExternalPortFromInboundRequest(request); 148 + int appi = request.applicationNumber(); 149 + 150 + if((null==host)||(0==host.length())) 151 + throw new IllegalStateException("the host cannot be determined from the inbound request."); 152 + 153 + if(context.hasSession()) 154 + context.session(); 155 + 156 + StringBuffer sb = new StringBuffer(); 157 + 158 + sb.append("http://"); 159 + sb.append(host); 160 + 161 + if(-1!=port) 162 + { 163 + sb.append(":"); 164 + sb.append(Integer.toString(port)); 165 + } 166 + 167 + String path = context.urlWithRequestHandlerKey( 168 + request.requestHandlerKey(), 169 + request.requestHandlerPath(), 170 + null); 171 + 162 162 // Unless the context has a session, we can't get it to come back 163 163 // to a specific instance, but in the case of a 'wotaskd' deploy, 164 164 // there is no way to specify the session for a WSDL request, so 165 165 // we'll do a nasty hack to make this work. 176 + 177 + if((-1!=appi)&&(!context.hasSession())) 178 + { 179 + String webServiceRequestHandlerKey = WOApplication.application().webServiceRequestHandlerKey(); 180 + String startPath = request.adaptorPrefix()+"/"+request.applicationName()+".woa"; // ''/cgi-bin/WebObjects/Foo.woa'' 181 + 182 + if(!path.startsWith(startPath)) 183 + throw new IllegalStateException("The path '"+path+"' should have started with '"+startPath+"'"); 166 166 167 - if((-1!=appi)&&(!context.hasSession())) 168 - { 169 - String webServiceRequestHandlerKey = WOApplication.application().webServiceRequestHandlerKey(); 170 - String startPath = request.adaptorPrefix()+"/"+request.applicationName()+".woa"; // ''/cgi-bin/WebObjects/Foo.woa'' 185 + if(path.startsWith(startPath+"/"+webServiceRequestHandlerKey)) 186 + { 187 + StringBuffer pathSB = new StringBuffer(); 188 + 189 + pathSB.append(startPath); 190 + pathSB.append("/"); 191 + pathSB.append(Integer.toString(appi)); 192 + pathSB.append(path.substring(startPath.length())); 193 + 194 + path = pathSB.toString(); 195 + } 196 + } 197 + 198 + sb.append(path); 199 + 200 + msgContext.setProperty(MessageContext.WSDLGEN_SERV_LOC_URL,sb.toString()); 201 + } 171 171 172 - if(!path.startsWith(startPath)) 173 - throw new IllegalStateException("The path '"+path+"' should have started with '"+startPath+"'"); 174 - 175 - if(path.startsWith(startPath+"/"+webServiceRequestHandlerKey)) 176 - { 177 - StringBuffer pathSB = new StringBuffer(); 178 - 179 - pathSB.append(startPath); 180 - pathSB.append("/"); 181 - pathSB.append(Integer.toString(appi)); 182 - pathSB.append(path.substring(startPath.length())); 183 - 184 - path = pathSB.toString(); 185 - } 186 - } 187 - 188 - sb.append(path); 189 - 190 - msgContext.setProperty(MessageContext.WSDLGEN_SERV_LOC_URL,sb.toString()); 191 - } 192 - 193 193 // -------------------------------------------------------------- 194 194 195 195 /** 206 +{panel} 196 196 * <P>Basically there is nothing to do here because we are not 197 197 * interested in messing with the request/response cycle - rather 198 198 * we want only to manipulate the WSDL.</P> 199 199 */ 211 +{panel} 200 200 201 - 202 - 203 - 213 + public void invoke(MessageContext msgContext) throws AxisFault 214 + { 215 + } 204 204 205 205 // -------------------------------------------------------------- 206 206