Hey, thanks so much for your help. I think I just needed someone to lay it out for me. I have, however come across some questions:
What is the deal with WSDL? I noticed that the AddressBook2 sample has a .wsdl file in the sample directory, but nothing seems to really reference it. How do you lock an object or service to a WSDL file? Does apache soap not really support .wsdl (and axis does?) Again, thank you so much Todd -----Original Message----- From: Scott Nichol [mailto:[EMAIL PROTECTED]] Sent: Monday, June 10, 2002 4:53 PM To: [EMAIL PROTECTED] Subject: Re: Problems with (De)Serializers w/ Code Todd, You basically figured this out yourself: >>>> Another question: the only reference to the class GuideSerializer that is made is at the client while building the call. Is this correct? Do I need to somehow map GuideSerializer to the type Guide in the DeploymentDescriptor??? <<<< If, as your original message claims, Guide implements the Serializer and Deserializer interfaces, it must be listed as the [de-]serializing class in your deployement descriptor, as in <isd:map encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"; xmlns:x="urn:tickler-guide" qname="x:guide" javaType="com.salarinc.tickler.foundation.Guide" java2XMLClassName="com.salarinc.tickler.foundation.Guide" xml2JavaClassName="com.salarinc.tickler.foundation.Guide"/> It looks, however, like you have a separate class for [de-]serialization, GuideSerializer. In that case, use <isd:map encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"; xmlns:x="urn:tickler-guide" qname="x:guide" javaType="com.salarinc.tickler.foundation.Guide" java2XMLClassName="com.salarinc.tickler.foundation.GuideSerializer" xml2JavaClassName="com.salarinc.tickler.foundation.GuideSerializer"/> Scott Nichol ----- Original Message ----- From: "Todd D. Johnson" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Monday, June 10, 2002 1:30 PM Subject: Problems with (De)Serializers w/ Code > I have attached code samples to the bottom. I am resending bc I did not see > my earlier message show up on the archives. I am using the following > environment > java 1.4 > Tomcat 4.0.3 > Soap 2.3 > Xerces 1.4.4 > > I have written a simple class that implements not only the class functions, > but the serialization and deserialization as well. I am having problems > calling a simple function on the class that returns itself. Right now the > class has only one member (a string) and thus the marshall and unmarshall > functions are responsible for handling just that member. When a client > calls the function, apache tomcat loads the constructor, calls the function, > but never calls the marshall function (as reported through the apache > console). The only thing returned to the client is > > Fault Code = SOAP-ENV:Server > Fault String = java.lang.NullPointerException > > Does anyone have any ideas? I've gotten the simple soap examples to run > just fine. (And subsequently my code and descriptor are pretty identical) > > It's pretty weird because I know that the marshall/unmarshall methods are > never being accessed by the server. The exception is being thrown at > (RPCJavaProvider.java:138) which seems to me that it can't find a reference > to my (de)serializer. > > Another question: the only reference to the class GuideSerializer that is > made is at the client while building the call. Is this correct? Do I need > to somehow map GuideSerializer to the type Guide in the > DeploymentDescriptor??? > > Thanks, > > Todd D. Johnson > > Implementing server class: > > public Guide getSampleGuide(int guideSeq){ > System.out.println("Guide.getSampleGuide called"); > setGuideName("Sample Tickler Guide"); > //g.setGuideType("DefaultGuidePublishingAgentImpl"); > System.out.println("Guide.getSampleGuide exiting"); > return this; > } > > DeploymentDescriptor: > > <isd:service xmlns:isd="http://xml.apache.org/xml-soap/deployment"; > id="urn:tickler"> > <isd:provider type="java" scope="Request" methods="getSampleGuide"> > <isd:java class="com.salarinc.tickler.foundation.Guide" > static="false"/> > </isd:provider> > > <isd:faultListener>org.apache.soap.server.DOMFaultListener</isd:faultListene > r> > <isd:mappings> > <isd:map encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"; > xmlns:x="urn:tickler-guide" qname="x:guide" > javaType="com.salarinc.tickler.foundation.Guide" > > java2XMLClassName="org.apache.soap.encoding.soapenc.BeanSerializer" > > xml2JavaClassName="org.apache.soap.encoding.soapenc.BeanSerializer"/> > </isd:mappings> > </isd:service> > > Client code: > > Integer x=new Integer(7); > Integer y=new Integer(8); > final String urn= "urn:tickler"; > > Vector params = new Vector(); > > URL url = null; > try{ > url = new URL("http://"; + serverhost + ":" + serverport+ > soapservlet); > }catch(java.net.MalformedURLException e){ > System.out.println("Error creating a url: "+e.getMessage()); > } > > ServiceManagerClient client = new ServiceManagerClient(url); > try{ > String[] apps = client.list(); > System.out.println("Deployed Services at "+url.toString()+" > are:"); > for(int i = 0; i < apps.length; i++){ > System.out.println("\t"+apps[i]); > DeploymentDescriptor desc = client.query(apps[i]); > System.out.println("\t\tMethods for > "+desc.getScriptFilenameOrString()+" are:"); > String[] methods = desc.getMethods(); > for(int j = 0; j < methods.length; j++){ > System.out.println("\t\t\t"+methods[j]); > } > } > }catch(SOAPException e){ > System.out.println("Could not connect to ServiceManager at > "+url.toString()+": "+e.getMessage()); > } > > // Build the call. > Call call = new Call(); > SOAPHTTPConnection shc = new SOAPHTTPConnection (); > shc.setMaintainSession (true); > call.setSOAPTransport(shc); > call.setTargetObjectURI(urn); > > call.setEncodingStyleURI("http://schemas.xmlsoap.org/soap/encoding/";); > > call.setMethodName("getSampleGuide"); > > params.addElement(new Parameter("guideSeq" , Integer.class, new > Integer(7), null)); > > call.setParams(params); > GuideSerializer ser_0 = new GuideSerializer(); > SOAPMappingRegistry smr = call.getSOAPMappingRegistry(); > smr.mapTypes("http://schemas.xmlsoap.org/soap/encoding/";, new QName( > "urn:tickler-guide", "guide"), Guide.class, ser_0, ser_0); > call.setSOAPMappingRegistry(smr); > Response resp = null; > try{ > resp = call.invoke(url,""); > }catch(org.apache.soap.SOAPException e){ > System.out.println("Got a soap exception while invoking > "+e.getMessage()); > System.exit(1); > } > > if (resp.generatedFault()) { > Fault fault = resp.getFault(); > System.out.println("Ouch, the call failed: "); > System.out.println(" Fault Code = " + fault.getFaultCode()); > System.out.println(" Fault String = " + > fault.getFaultString()); > } else { > Parameter result = resp.getReturnValue(); > if(result.getType() == Guide.class){ > Guide g = (Guide)result.getValue(); > System.out.println("The guide name is " + g.getGuideName()); > }else{ > System.out.println("ERROR server returned a > :"+result.getType().toString()); > System.exit(1); > } > > } > > Serializer/Deserializer > > public Bean unmarshall(String inScopeEncStyle, QName elementType, > Node src, XMLJavaMappingRegistry xjmr, SOAPContext ctx) > throws IllegalArgumentException > { > Element root = (Element)src; > Element tempEl = DOMUtils.getFirstChildElement(root); > Guide target; > > try > { > target = > (Guide)Guide.class.newInstance > (); > } > catch (Exception e) > { > throw new IllegalArgumentException("Problem instantiating bean: " > + e.getMessage()); > } > > while (tempEl != null) > { > Bean paramBean = xjmr.unmarshall(inScopeEncStyle, > RPCConstants.Q_ELEM_PARAMETER, > tempEl, ctx); > Parameter param = (Parameter)paramBean.value; > String tagName = tempEl.getTagName(); > > > if (tagName.equals("name")) > { > target.setGuideName((java.lang.String)param.getValue()); > } > > tempEl = DOMUtils.getNextSiblingElement(tempEl); > } > > return new Bean(Guide.class, target); > } > > public void marshall(String inScopeEncStyle, Class javaType, > Object src, Object context, Writer sink, > NSStack nsStack, XMLJavaMappingRegistry xjmr, SOAPContext ctx) > throws IllegalArgumentException, IOException > { > > nsStack.pushScope(); > > SoapEncUtils.generateStructureHeader(inScopeEncStyle, javaType, > context, > sink, nsStack, xjmr); > > sink.write(StringUtils.lineSeparator); > > Guide src2 = (Guide)src; > Parameter param; > > param = new Parameter("namme", String.class, new String > ("Test"), null); > xjmr.marshall(inScopeEncStyle, Parameter.class, param, null, > sink, nsStack, ctx); > sink.write(StringUtils.lineSeparator); > > sink.write("</" + context + '>'); > > nsStack.popScope(); > } > > > > > server gunk: > </SHTTP/1.1 500 Internal Server Error Content-Type: text/xml; charset=utf-8 > Content-Length: 3369 Date: Mon, 10 Jun 2002 14:24:09 GMT Server: Apache > Tomcat/4.0.2 (HTTP/1.1 Connector) Set-Cookie: > JSESSIONID=4F9E94EB66517ADC4DEAD0E2AE6E5966;Pa<?xml version='1.0' > encoding='UTF-8'?> <SOAP-ENV:Envelope > xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/"; > xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; > xmlns:xsd="http://www.w3.org/2001/XMLSchema";> <SOAP-ENV:Body> > <SOAP-ENV:Fault> <faultcode>SOAP-ENV:Server</faultcode> > <faultstring>java.lang.NullPointerException</faultstring> > <faultactor>/soap/servlet/rpcrouter</faultactor> <detail> > <stackTrace>[SOAPException: faultCode=SOAP-ENV:Server; > msg=java.lang.NullPointerException] at > org.apache.soap.providers.RPCJavaProvider.invoke(RPCJavaProvider.java:138) > at > org.apache.soap.server.http.RPCRouterServlet.doPost(RPCRouterServlet.java:35 > 4) at javax.servlet.http.HttpServlet.service(HttpServlet.java:760) at > javax.servlet.http.HttpServlet.service(HttpServlet.java:853) at > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application > FilterChain.java:247) at > org.apache.catalina.core.ApplicationFilterChain.doFilter(Applicat > org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja > va:243) at > org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5 > 66) at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472) > at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943) at > org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.ja > va:190) at > org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5 > 66) at > org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.java:2 > 46) at > org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5 > 64) at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472) > at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943) at > org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2343) > at > org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180 > ) at org.ndardPipeline.invokeNext(StandardPipeline.java:566) at > org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve. > java:170) at > org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5 > 64) at > org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:170 > ) at > org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5 > 64) at > org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:468) > at > org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5 > 64) at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472) > at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943) at > org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java > :174) at > org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5 > 66) at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472) > at org.apache.catalina.core.CainerBase.java:943) at > org.apache.catalina.connector.http.HttpProcessor.process(HttpProcessor.java: > 1012) at > org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:1107 > ) at java.lang.Thread.run(Thread.java:536) </stackTrace> </detail> > </SOAP-ENV:Fault> > > >
