You are viewing a plain text version of this content. The canonical link for it is here.
Posted to users@cxf.apache.org by "KARR, DAVID" <dk...@att.com> on 2017/04/11 19:33:43 UTC
How to handle "happy path" form parameters and show fatal html
responses?
I now have my little client prototype using ClientBuilder and a MessageBodyReader to unmarshal form parameters into a POJO. This works fine in normal circumstances.
When something goes really bad, I don't get a form response, I get an HTML response, but I've nicely abstracted my media so much, that I now can't easily get to the plain HTML result.
How can I have both the "happy path", and an error handler that prints out the plain text of the response?
My present method using the client is this:
--------------------
public StuffResponse validateToken(String token) {
WebTarget target = client.target(getStuffHostPort()).path(getStuffPath());
Builder request = target.request(MediaType.APPLICATION_JSON_TYPE);
Form form = new Form();
form.param("TokenID", token);
StuffResponse response = null;
return request.post(Entity.entity(form, MediaType.APPLICATION_FORM_URLENCODED_TYPE), StuffResponse.class);
}
--------------
When I call it with a "manipulated" environment so the service fails with an HTML response, I get the following:
---------------
SEVERE: No message body reader has been found for class com.att.detsusl.stuffrest.StuffResponse, ContentType: text/html
Exception in thread "main" javax.ws.rs.client.ResponseProcessingException: No message body reader has been found for class com.att.detsusl.stuffrest.StuffResponse, ContentType: text/html
at org.apache.cxf.jaxrs.impl.ResponseImpl.reportMessageHandlerProblem(ResponseImpl.java:439)
at org.apache.cxf.jaxrs.impl.ResponseImpl.doReadEntity(ResponseImpl.java:390)
at org.apache.cxf.jaxrs.client.AbstractClient.readBody(AbstractClient.java:524)
at org.apache.cxf.jaxrs.client.WebClient.handleResponse(WebClient.java:1122)
at org.apache.cxf.jaxrs.client.WebClient.doResponse(WebClient.java:1110)
at org.apache.cxf.jaxrs.client.WebClient.doChainedInvocation(WebClient.java:1035)
at org.apache.cxf.jaxrs.client.WebClient.doInvoke(WebClient.java:892)
at org.apache.cxf.jaxrs.client.WebClient.doInvoke(WebClient.java:863)
at org.apache.cxf.jaxrs.client.WebClient.invoke(WebClient.java:426)
at org.apache.cxf.jaxrs.client.WebClient$SyncInvokerImpl.method(WebClient.java:1562)
at org.apache.cxf.jaxrs.client.WebClient$SyncInvokerImpl.post(WebClient.java:1502)
at org.apache.cxf.jaxrs.client.spec.InvocationBuilderImpl.post(InvocationBuilderImpl.java:150)
at com.att.detsusl.stuffrest.StuffService.validateToken(StuffService.java:105)
----------
The HTML response is not very likely to happen, but when it happens, I'd like to make sure it gets into the log.
I know that if I instead post without qualifying with the type, like this:
----------------
Response postResponse = request.post(Entity.entity(form, MediaType.APPLICATION_FORM_URLENCODED_TYPE));
----------------
Then I can get the text of the response. That might not be helpful here.
RE: How to handle "happy path" form parameters and show fatal html
responses?
Posted by "KARR, DAVID" <dk...@att.com>.
> -----Original Message-----
> From: KARR, DAVID
> Sent: Tuesday, April 11, 2017 12:34 PM
> To: users@cxf.apache.org
> Subject: How to handle "happy path" form parameters and show fatal html
> responses?
>
> I now have my little client prototype using ClientBuilder and a
> MessageBodyReader to unmarshal form parameters into a POJO. This works
> fine in normal circumstances.
>
> When something goes really bad, I don't get a form response, I get an
> HTML response, but I've nicely abstracted my media so much, that I now
> can't easily get to the plain HTML result.
>
> How can I have both the "happy path", and an error handler that prints
> out the plain text of the response?
Sigh. Never mind. Sometimes I think only posting these notes is what makes me realize what the answer is. :)
Just adding a catch clause for "ResponseProcessingException" and calling "ex.getResponse().readEntity(String.class)" gives me what I need.
>
> My present method using the client is this:
> --------------------
> public StuffResponse validateToken(String token) {
> WebTarget target =
> client.target(getStuffHostPort()).path(getStuffPath());
> Builder request =
> target.request(MediaType.APPLICATION_JSON_TYPE);
> Form form = new Form();
> form.param("TokenID", token);
> StuffResponse response = null;
> return request.post(Entity.entity(form,
> MediaType.APPLICATION_FORM_URLENCODED_TYPE), StuffResponse.class);
> }
> --------------
>
> When I call it with a "manipulated" environment so the service fails
> with an HTML response, I get the following:
> ---------------
> SEVERE: No message body reader has been found for class
> com.att.detsusl.stuffrest.StuffResponse, ContentType: text/html
> Exception in thread "main"
> javax.ws.rs.client.ResponseProcessingException: No message body reader
> has been found for class com.att.detsusl.stuffrest.StuffResponse,
> ContentType: text/html
> at
> org.apache.cxf.jaxrs.impl.ResponseImpl.reportMessageHandlerProblem(Respo
> nseImpl.java:439)
> at
> org.apache.cxf.jaxrs.impl.ResponseImpl.doReadEntity(ResponseImpl.java:39
> 0)
> at
> org.apache.cxf.jaxrs.client.AbstractClient.readBody(AbstractClient.java:
> 524)
> at
> org.apache.cxf.jaxrs.client.WebClient.handleResponse(WebClient.java:1122
> )
> at
> org.apache.cxf.jaxrs.client.WebClient.doResponse(WebClient.java:1110)
> at
> org.apache.cxf.jaxrs.client.WebClient.doChainedInvocation(WebClient.java
> :1035)
> at
> org.apache.cxf.jaxrs.client.WebClient.doInvoke(WebClient.java:892)
> at
> org.apache.cxf.jaxrs.client.WebClient.doInvoke(WebClient.java:863)
> at org.apache.cxf.jaxrs.client.WebClient.invoke(WebClient.java:426)
> at
> org.apache.cxf.jaxrs.client.WebClient$SyncInvokerImpl.method(WebClient.j
> ava:1562)
> at
> org.apache.cxf.jaxrs.client.WebClient$SyncInvokerImpl.post(WebClient.jav
> a:1502)
> at
> org.apache.cxf.jaxrs.client.spec.InvocationBuilderImpl.post(InvocationBu
> ilderImpl.java:150)
> at
> com.att.detsusl.stuffrest.StuffService.validateToken(StuffService.java:1
> 05)
> ----------
>
> The HTML response is not very likely to happen, but when it happens, I'd
> like to make sure it gets into the log.
>
> I know that if I instead post without qualifying with the type, like
> this:
> ----------------
> Response postResponse = request.post(Entity.entity(form,
> MediaType.APPLICATION_FORM_URLENCODED_TYPE));
> ----------------
>
> Then I can get the text of the response. That might not be helpful
> here.