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Posted to users@cxf.apache.org by Daniel Kulp <dk...@apache.org> on 2007/09/04 19:51:36 UTC
Re: NullPointerException with REST client call using JAX-WS Dispatch
Mark,
Have you tried this with trunk? I tried this with trunk and I'm not
getting any errors or stack traces. (it didn't work, but that's
probably cause I don't have an ID so just put junk in there for that).
I've attached the simple "Client" I'm using. Can you take a quick
look to make sure I didn't mess something up and that the queries and
stuff more or less match what you are doing?
Thanks!
Dan
On Tuesday 28 August 2007, Mark Edwards wrote:
> Hi Dan
>
> Thanks for the reply. The answers to your questions are -
>
> 1) The WSDL URL is null.
>
> I have subsequently tried to call some RPC encoded webservices using
> Dispatch and creating the Service without a WSDL and this gets the
> same error under CXF but works with the RI. So, as you have probably
> already realised, the lack of a WSDL looks like an important part of
> the problem.
>
> 2) URL endpointAddress =
> http://ecs.amazonaws.com/onca/xml?Service=AWSECommerceService&AWSAcces
>sKeyId= [will need to add a valid access ID here if you want to use
> this URL]&Operation=ItemSearch&SearchIndex=Books&Title=Harry%20Potter
>
> I can provide my Access Key if you need to use the above URL.
>
> String queryStringPostFix = null;
>
> callParams.getVerb().getVerbName() = "POST";
>
> callParams.getPayload() = null;
>
>
> Best Regards
>
> Mark
>
>
>
> -----Original Message-----
> From: Daniel Kulp [mailto:dkulp@apache.org]
> Sent: 24 August 2007 18:01
> To: cxf-user@incubator.apache.org
> Cc: Mark Edwards
> Subject: Re: NullPointerException with REST client call using JAX-WS
> Dispatch
>
>
> Mark,
>
> I think I need some more details:
>
> 1) Are you using a WSDL URL or not for the call at:
> if (wsdlURL == null) {
> service = Service.create(serviceName);
> } else {
> service = Service.create(wsdlURL, serviceName);
> }
> That's important. If you ARE using a WSDL URL, the serviceName and
> portnames will have to match whats in the WSDL. If you are using the
> WSDL URL, could you send me that? The url on amazons site is:
> http://webservices.amazon.com/AWSECommerceService/AWSECommerceService.
>wsdl? but that has a namespace of:
> http://webservices.amazon.com/AWSECommerceService/2007-07-16
> so I assume it's new than what you were trying to use.
>
>
> 2) Can you also send me the values you are using for:
>
> URL endpointAddress = binding.getEndpointAddress();
> String queryStringPostFix = callParams.getUrlPostFix();
> callParams.getVerb().getVerbName()
> callParams.getPayload()
>
> Thanks!
> Dan
>
> On Wednesday 22 August 2007, Mark Edwards wrote:
> > Hi
> >
> >
> >
> > I'm getting the following exception when trying to call one of
> > Amazon's REST webservices using the JAX-WS Dispatch approach.
> >
> >
> >
> >
> >
> > 22-Aug-2007 15:52:18
> > org.apache.cxf.service.factory.ReflectionServiceFactoryBean
> > buildServiceFromClass
> >
> > INFO: Creating Service
> > {http://webservices.amazon.com/AWSECommerceService/2005-10-05}amazon
> >_s ervice from class org.apache.cxf.jaxws.support.DummyImpl
> >
> > Exception in thread "main" java.lang.NullPointerException
> >
> > at
> > org.apache.cxf.jaxws.ServiceImpl.createEndpointInfo(ServiceImpl.java
> >:3 58)
> >
> > at
> > org.apache.cxf.jaxws.ServiceImpl.getJaxwsEndpoint(ServiceImpl.java:1
> >37 )
> >
> > at
> > org.apache.cxf.jaxws.ServiceImpl.createDispatch(ServiceImpl.java:188
> >)
> >
> > at javax.xml.ws.Service.createDispatch(Service.java:166)
> >
> > at
> > uk.co.orchardsystems.webservices.client.call.DispatchServiceCall.res
> >fF ulCall( DispatchServiceCall.java:98)
> >
> > at
> > uk.co.orchardsystems.webservices.client.test.AmazonRestFulClient.mai
> >n( AmazonR estFulClient.java:51)
> >
> >
> >
> >
> >
> > My code works fine if I remove CXF from the classpath and run it
> > using the JAX-WS implementation that comes with Java 6.
> >
> >
> >
> >
> >
> > The main calling method in my code is -
> >
> >
> >
> > public Document resfFulCall(RestFulCallParams callParams)
> >
> > throws WebserviceClientCallException {
> >
> > BindingDefinition binding =
> > getServiceCallRequest().getBinding();
> >
> > QName portName = binding.getPortName();
> >
> > URL endpointAddress = binding.getEndpointAddress();
> >
> > String fullURL = null;
> >
> > String queryStringPostFix = callParams.getUrlPostFix();
> >
> > if (queryStringPostFix != null) {
> >
> > fullURL = endpointAddress.toString() +
> > queryStringPostFix;
> >
> > } else {
> >
> > fullURL = endpointAddress.toString();
> >
> > }
> >
> >
> >
> > Service service = getService();
> >
> > service.addPort(portName, HTTPBinding.HTTP_BINDING,
> > fullURL);
> >
> > Dispatch<Source> dispatch = service.createDispatch(portName,
> > Source.class, Service.Mode.PAYLOAD);
> >
> > Map<String, Object> requestContext =
> > dispatch.getRequestContext();
> >
> > requestContext.put(MessageContext.HTTP_REQUEST_METHOD,
> > callParams.getVerb().getVerbName());
> >
> > return payLoadInvoke(dispatch, callParams.getPayload());
> >
> > }
> >
> >
> >
> > Supporting methods -
> >
> >
> >
> > protected Service getService() {
> >
> > ServiceDefinition serviceDefinition =
> > serviceCallRequest.getBinding().getService();
> >
> > QName serviceName = serviceDefinition.getServiceName();
> >
> > URL wsdlURL = serviceDefinition.getWsdlURL();
> >
> > Service service;
> >
> > if (wsdlURL == null) {
> >
> > service = Service.create(serviceName);
> >
> > } else {
> >
> > service = Service.create(wsdlURL, serviceName);
> >
> > }
> >
> >
> >
> > service.setHandlerResolver(new
> > ClientHandlerResolver(serviceCallRequest));
> >
> >
> >
> > return service;
> >
> > }
> >
> >
> >
> > private Document payLoadInvoke(Dispatch<Source> dispatch, Document
> > payload)
> >
> > throws WebserviceClientCallException {
> >
> > DOMSource request = new DOMSource(payload);
> >
> >
> >
> > Source response = null;
> >
> > try {
> >
> > response = dispatch.invoke(request);
> >
> > } catch (Throwable t) {
> >
> > processException(t);
> >
> > }
> >
> >
> >
> > try {
> >
> > return XMLUtils.domSourceToDocument(response);
> >
> > } catch (TransformerConfigurationException e) {
> >
> > throw new WebserviceClientCallException(e);
> >
> > } catch (TransformerFactoryConfigurationError e) {
> >
> > throw new WebserviceClientCallException(e);
> >
> > } catch (TransformerException e) {
> >
> > throw new WebserviceClientCallException(e);
> >
> > }
> >
> > }
> >
> >
> >
> > Relevant values -
> >
> >
> >
> > Service name = new
> > QName("http://webservices.amazon.com/AWSECommerceService/2005-10-05"
> >, "amazon_service")
> >
> > Port name = new
> > QName("http://webservices.amazon.com/AWSECommerceService/2005-10-05"
> >, "amazon_port")
> >
> > (I wasn't completely sure what to set these to for a RESTful call
> > but they seem to work when not using CXF)
> >
> >
> >
> > endPointAddress =
> > http://ecs.amazonaws.com/onca/xml?Service=AWSECommerceService&AWSAcc
> >es sKeyId= [will
> > <http://ecs.amazonaws.com/onca/xml?Service=AWSECommerceService&AWSAc
> >ce ssKeyId =%5bwill> need to add a valid access ID here if you want
> > to use this
> > URL]&Operation=ItemSearch&SearchIndex=Books&Title=Harry%20Potter
> >
> >
> >
> > queryStringPostFix = null
> >
> >
> >
> >
> >
> >
> >
> > I'm running the 2.0 version of CXF.
> >
> >
> >
> >
> >
> >
> >
> > The problem appears to be in the following bit of code -
> >
> >
> >
> > private EndpointInfo createEndpointInfo(AbstractServiceFactoryBean
> > serviceFactory,
> >
> > QName portName,
> >
> > PortInfoImpl portInfo)
> > throws BusException {
> >
> > EndpointInfo ei = null;
> >
> > String address = portInfo.getAddress();
> >
> >
> >
> > DestinationFactoryManager dfm =
> > bus.getExtension(DestinationFactoryManager.class);
> >
> > DestinationFactory df =
> > dfm.getDestinationFactoryForUri(portInfo.getAddress());
> >
> >
> >
> > String transportId = df.getTransportIds().get(0);
> >
> > String bindingID =
> > BindingID.getBindingID(portInfo.getBindingID());
> >
> >
> >
> > Object config = null;
> >
> > if (serviceFactory instanceof JaxWsServiceFactoryBean) {
> >
> > config = new
> > JaxWsSoapBindingConfiguration((JaxWsServiceFactoryBean)serviceFactor
> >y) ;
> >
> > }
> >
> > BindingInfo bindingInfo =
> > bus.getExtension(BindingFactoryManager.class).getBindingFactory(bind
> >in gID)
> >
> > .createBindingInfo(serviceFactory.getService(),
> > bindingID, config);
> >
> >
> >
> >
> >
> > Service service = serviceFactory.getService();
> >
> > service.getServiceInfos().get(0).addBinding(bindingInfo);
> >
> >
> >
> > ei = new EndpointInfo(service.getServiceInfos().get(0),
> > transportId);
> >
> > ei.setName(portName);
> >
> > ei.setAddress(address);
> >
> > ei.setBinding(bindingInfo);
> >
> >
> >
> > service.getServiceInfos().get(0).addEndpoint(ei);
> >
> > return ei;
> >
> > }
> >
> >
> >
> > The DestinationFactory df is null because the
> > DestinationFactoryManger instance has an empty Map of
> > destinationFactories. But maybe it shouldn't have got to this point
> > in the first place and the problem is really in ServiceImpl.
> > getJaxwsEndpoint.
> >
> >
> >
> > I hope this is enough information to look into the problem and see
> > what I've done wrong.
> >
> >
> >
> >
> >
> > Thanks in anticipation.
> >
> >
> >
> > Mark
> >
> >
> >
> >
> >
> > Mark Edwards
> >
> > Orchard Information Systems Limited,
> > Newcastle Technopole, Kings Manor,
> > Newcastle upon Tyne,
> > NE1 6PA
> > United Kingdom.
> > Registered in England, Number 1900078
> > Tel: +44 (0)191-203 2500 Fax: +44 (0)191-230 2515
> > http://www.orchard-systems.co.uk <http://www.orchard-systems.co.uk/>
> >
> >
> >
> >
> > This e-mail and any files transmitted are confidential and is solely
> > for the intended recipient. Unauthorised use, dissemination,
> > distribution, copying, reproduction, modification or publication is
> > strictly prohibited. If you have received this e-mail in error,
> > please notify the sender and permanently delete the e-mail from your
> > system. Opinions expressed in this e-mail are those of the
> > individual and not necessarily those of Orchard Information Systems
> > Ltd.
> >
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> > liability for any damage caused by any virus transmitted by this
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> >
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> >
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> > Newcastle Technopole, Kings Manor, Newcastle upon Tyne, NE1 6PA
> >
> > Please consider the environment before printing this e-mail.
--
J. Daniel Kulp
Principal Engineer
IONA
P: 781-902-8727 C: 508-380-7194
daniel.kulp@iona.com
http://www.dankulp.com/blog
Re: NullPointerException with REST client call using JAX-WS Dispatch
Posted by Daniel Kulp <dk...@apache.org>.
Mark,
One more question: is the spring jars on the classpath?
I'm seeing a similar stack trace when using the ExtensionBus instead of
the Spring bus. I'm working on a fix for that now so that fix may fix
your issue.
Dan
On Tuesday 04 September 2007, Daniel Kulp wrote:
> Mark,
>
> Have you tried this with trunk? I tried this with trunk and I'm not
> getting any errors or stack traces. (it didn't work, but that's
> probably cause I don't have an ID so just put junk in there for that).
> I've attached the simple "Client" I'm using. Can you take a quick
> look to make sure I didn't mess something up and that the queries and
> stuff more or less match what you are doing?
>
> Thanks!
> Dan
>
> On Tuesday 28 August 2007, Mark Edwards wrote:
> > Hi Dan
> >
> > Thanks for the reply. The answers to your questions are -
> >
> > 1) The WSDL URL is null.
> >
> > I have subsequently tried to call some RPC encoded webservices using
> > Dispatch and creating the Service without a WSDL and this gets the
> > same error under CXF but works with the RI. So, as you have
> > probably already realised, the lack of a WSDL looks like an
> > important part of the problem.
> >
> > 2) URL endpointAddress =
> > http://ecs.amazonaws.com/onca/xml?Service=AWSECommerceService&AWSAcc
> >es sKeyId= [will need to add a valid access ID here if you want to
> > use this
> > URL]&Operation=ItemSearch&SearchIndex=Books&Title=Harry%20Potter
> >
> > I can provide my Access Key if you need to use the above URL.
> >
> > String queryStringPostFix = null;
> >
> > callParams.getVerb().getVerbName() = "POST";
> >
> > callParams.getPayload() = null;
> >
> >
> > Best Regards
> >
> > Mark
> >
> >
> >
> > -----Original Message-----
> > From: Daniel Kulp [mailto:dkulp@apache.org]
> > Sent: 24 August 2007 18:01
> > To: cxf-user@incubator.apache.org
> > Cc: Mark Edwards
> > Subject: Re: NullPointerException with REST client call using JAX-WS
> > Dispatch
> >
> >
> > Mark,
> >
> > I think I need some more details:
> >
> > 1) Are you using a WSDL URL or not for the call at:
> > if (wsdlURL == null) {
> > service = Service.create(serviceName);
> > } else {
> > service = Service.create(wsdlURL, serviceName);
> > }
> > That's important. If you ARE using a WSDL URL, the serviceName and
> > portnames will have to match whats in the WSDL. If you are using
> > the WSDL URL, could you send me that? The url on amazons site is:
> > http://webservices.amazon.com/AWSECommerceService/AWSECommerceServic
> >e. wsdl? but that has a namespace of:
> > http://webservices.amazon.com/AWSECommerceService/2007-07-16
> > so I assume it's new than what you were trying to use.
> >
> >
> > 2) Can you also send me the values you are using for:
> >
> > URL endpointAddress = binding.getEndpointAddress();
> > String queryStringPostFix = callParams.getUrlPostFix();
> > callParams.getVerb().getVerbName()
> > callParams.getPayload()
> >
> > Thanks!
> > Dan
> >
> > On Wednesday 22 August 2007, Mark Edwards wrote:
> > > Hi
> > >
> > >
> > >
> > > I'm getting the following exception when trying to call one of
> > > Amazon's REST webservices using the JAX-WS Dispatch approach.
> > >
> > >
> > >
> > >
> > >
> > > 22-Aug-2007 15:52:18
> > > org.apache.cxf.service.factory.ReflectionServiceFactoryBean
> > > buildServiceFromClass
> > >
> > > INFO: Creating Service
> > > {http://webservices.amazon.com/AWSECommerceService/2005-10-05}amaz
> > >on _s ervice from class org.apache.cxf.jaxws.support.DummyImpl
> > >
> > > Exception in thread "main" java.lang.NullPointerException
> > >
> > > at
> > > org.apache.cxf.jaxws.ServiceImpl.createEndpointInfo(ServiceImpl.ja
> > >va
> > >
> > >:3 58)
> > >
> > > at
> > > org.apache.cxf.jaxws.ServiceImpl.getJaxwsEndpoint(ServiceImpl.java
> > >:1 37 )
> > >
> > > at
> > > org.apache.cxf.jaxws.ServiceImpl.createDispatch(ServiceImpl.java:1
> > >88 )
> > >
> > > at
> > > javax.xml.ws.Service.createDispatch(Service.java:166)
> > >
> > > at
> > > uk.co.orchardsystems.webservices.client.call.DispatchServiceCall.r
> > >es fF ulCall( DispatchServiceCall.java:98)
> > >
> > > at
> > > uk.co.orchardsystems.webservices.client.test.AmazonRestFulClient.m
> > >ai n( AmazonR estFulClient.java:51)
> > >
> > >
> > >
> > >
> > >
> > > My code works fine if I remove CXF from the classpath and run it
> > > using the JAX-WS implementation that comes with Java 6.
> > >
> > >
> > >
> > >
> > >
> > > The main calling method in my code is -
> > >
> > >
> > >
> > > public Document resfFulCall(RestFulCallParams callParams)
> > >
> > > throws WebserviceClientCallException {
> > >
> > > BindingDefinition binding =
> > > getServiceCallRequest().getBinding();
> > >
> > > QName portName = binding.getPortName();
> > >
> > > URL endpointAddress = binding.getEndpointAddress();
> > >
> > > String fullURL = null;
> > >
> > > String queryStringPostFix = callParams.getUrlPostFix();
> > >
> > > if (queryStringPostFix != null) {
> > >
> > > fullURL = endpointAddress.toString() +
> > > queryStringPostFix;
> > >
> > > } else {
> > >
> > > fullURL = endpointAddress.toString();
> > >
> > > }
> > >
> > >
> > >
> > > Service service = getService();
> > >
> > > service.addPort(portName, HTTPBinding.HTTP_BINDING,
> > > fullURL);
> > >
> > > Dispatch<Source> dispatch =
> > > service.createDispatch(portName, Source.class,
> > > Service.Mode.PAYLOAD);
> > >
> > > Map<String, Object> requestContext =
> > > dispatch.getRequestContext();
> > >
> > > requestContext.put(MessageContext.HTTP_REQUEST_METHOD,
> > > callParams.getVerb().getVerbName());
> > >
> > > return payLoadInvoke(dispatch, callParams.getPayload());
> > >
> > > }
> > >
> > >
> > >
> > > Supporting methods -
> > >
> > >
> > >
> > > protected Service getService() {
> > >
> > > ServiceDefinition serviceDefinition =
> > > serviceCallRequest.getBinding().getService();
> > >
> > > QName serviceName = serviceDefinition.getServiceName();
> > >
> > > URL wsdlURL = serviceDefinition.getWsdlURL();
> > >
> > > Service service;
> > >
> > > if (wsdlURL == null) {
> > >
> > > service = Service.create(serviceName);
> > >
> > > } else {
> > >
> > > service = Service.create(wsdlURL, serviceName);
> > >
> > > }
> > >
> > >
> > >
> > > service.setHandlerResolver(new
> > > ClientHandlerResolver(serviceCallRequest));
> > >
> > >
> > >
> > > return service;
> > >
> > > }
> > >
> > >
> > >
> > > private Document payLoadInvoke(Dispatch<Source> dispatch, Document
> > > payload)
> > >
> > > throws WebserviceClientCallException {
> > >
> > > DOMSource request = new DOMSource(payload);
> > >
> > >
> > >
> > > Source response = null;
> > >
> > > try {
> > >
> > > response = dispatch.invoke(request);
> > >
> > > } catch (Throwable t) {
> > >
> > > processException(t);
> > >
> > > }
> > >
> > >
> > >
> > > try {
> > >
> > > return XMLUtils.domSourceToDocument(response);
> > >
> > > } catch (TransformerConfigurationException e) {
> > >
> > > throw new WebserviceClientCallException(e);
> > >
> > > } catch (TransformerFactoryConfigurationError e) {
> > >
> > > throw new WebserviceClientCallException(e);
> > >
> > > } catch (TransformerException e) {
> > >
> > > throw new WebserviceClientCallException(e);
> > >
> > > }
> > >
> > > }
> > >
> > >
> > >
> > > Relevant values -
> > >
> > >
> > >
> > > Service name = new
> > > QName("http://webservices.amazon.com/AWSECommerceService/2005-10-0
> > >5" , "amazon_service")
> > >
> > > Port name = new
> > > QName("http://webservices.amazon.com/AWSECommerceService/2005-10-0
> > >5" , "amazon_port")
> > >
> > > (I wasn't completely sure what to set these to for a RESTful call
> > > but they seem to work when not using CXF)
> > >
> > >
> > >
> > > endPointAddress =
> > > http://ecs.amazonaws.com/onca/xml?Service=AWSECommerceService&AWSA
> > >cc es sKeyId= [will
> > > <http://ecs.amazonaws.com/onca/xml?Service=AWSECommerceService&AWS
> > >Ac ce ssKeyId =%5bwill> need to add a valid access ID here if you
> > > want to use this
> > > URL]&Operation=ItemSearch&SearchIndex=Books&Title=Harry%20Potter
> > >
> > >
> > >
> > > queryStringPostFix = null
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > > I'm running the 2.0 version of CXF.
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > > The problem appears to be in the following bit of code -
> > >
> > >
> > >
> > > private EndpointInfo createEndpointInfo(AbstractServiceFactoryBean
> > > serviceFactory,
> > >
> > > QName portName,
> > >
> > > PortInfoImpl portInfo)
> > > throws BusException {
> > >
> > > EndpointInfo ei = null;
> > >
> > > String address = portInfo.getAddress();
> > >
> > >
> > >
> > > DestinationFactoryManager dfm =
> > > bus.getExtension(DestinationFactoryManager.class);
> > >
> > > DestinationFactory df =
> > > dfm.getDestinationFactoryForUri(portInfo.getAddress());
> > >
> > >
> > >
> > > String transportId = df.getTransportIds().get(0);
> > >
> > > String bindingID =
> > > BindingID.getBindingID(portInfo.getBindingID());
> > >
> > >
> > >
> > > Object config = null;
> > >
> > > if (serviceFactory instanceof JaxWsServiceFactoryBean) {
> > >
> > > config = new
> > > JaxWsSoapBindingConfiguration((JaxWsServiceFactoryBean)serviceFact
> > >or y) ;
> > >
> > > }
> > >
> > > BindingInfo bindingInfo =
> > > bus.getExtension(BindingFactoryManager.class).getBindingFactory(bi
> > >nd in gID)
> > >
> > > .createBindingInfo(serviceFactory.getService(),
> > > bindingID, config);
> > >
> > >
> > >
> > >
> > >
> > > Service service = serviceFactory.getService();
> > >
> > > service.getServiceInfos().get(0).addBinding(bindingInfo);
> > >
> > >
> > >
> > > ei = new EndpointInfo(service.getServiceInfos().get(0),
> > > transportId);
> > >
> > > ei.setName(portName);
> > >
> > > ei.setAddress(address);
> > >
> > > ei.setBinding(bindingInfo);
> > >
> > >
> > >
> > > service.getServiceInfos().get(0).addEndpoint(ei);
> > >
> > > return ei;
> > >
> > > }
> > >
> > >
> > >
> > > The DestinationFactory df is null because the
> > > DestinationFactoryManger instance has an empty Map of
> > > destinationFactories. But maybe it shouldn't have got to this
> > > point in the first place and the problem is really in ServiceImpl.
> > > getJaxwsEndpoint.
> > >
> > >
> > >
> > > I hope this is enough information to look into the problem and see
> > > what I've done wrong.
> > >
> > >
> > >
> > >
> > >
> > > Thanks in anticipation.
> > >
> > >
> > >
> > > Mark
> > >
> > >
> > >
> > >
> > >
> > > Mark Edwards
> > >
> > > Orchard Information Systems Limited,
> > > Newcastle Technopole, Kings Manor,
> > > Newcastle upon Tyne,
> > > NE1 6PA
> > > United Kingdom.
> > > Registered in England, Number 1900078
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> > >
> > >
> > >
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--
J. Daniel Kulp
Principal Engineer
IONA
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http://www.dankulp.com/blog