Ian,
Have you considered deploying the service as a servlet and just using
a proxy rather than using the low level API (see the example
http://caucho.com/hessian/index.xtp#Introduction-to-Hessian)?
Or do you have anything restricting you from doing this?
HTH,
Ben
On 6/27/07, ian tabangay <[EMAIL PROTECTED]> wrote:
> Hi. Thank you for replying.
>
> The error happens when an exception is thrown by the service. From what I
> can understand, the Hessian parser failed to recreate the exception thrown
> by the service (for my test it was a NullPointerException). This, however,
> does not happen when I use HessianProxyFactory to connect to the service.
> Unfortunately, I cannot use this method because it cannot handle
> Authentication and Proxy. Therefore I was forced to recreate how Hessian
> converts the request and sends it using the HttpClient of Apache. Below is
> my code for doing that. Can you point out to me where I could have made a
> mistake?
>
> START OF CODE
>
> public Object connect(String id, String pwd, String method, Object[]
> param)
> throws Exception {
> // Create an httpClient instance
> HttpClient httpClient = new HttpClient();
> URL url = new URL(address);
> httpClient.getParams().setCookiePolicy(CookiePolicy.IGNORE_COOKIES);
> // Set username and password
> httpClient.getState().setCredentials(
> new AuthScope(url.getHost(), url.getPort(), null),
> new UsernamePasswordCredentials(id, pwd)
> );
> // Transform request to Hessian binary
> ByteArrayOutputStream out = new ByteArrayOutputStream();
> try {
> Hessian2Output output = new Hessian2Output(out);
> output.startCall(method);
> for (int i = 0; param != null && i < param.length; i++) {
> output.writeObject(param[i]);
> }
> output.completeCall();
> output.flush();
> } finally {
> out.close ();
> }
> // Insert binary stream to connection
> PostMethod httpMethod = new PostMethod(url.toString ());
> httpMethod.setDoAuthentication(true);
> ((PostMethod) httpMethod).setRequestEntity(
> new ByteArrayRequestEntity(out.toByteArray())
> );
> try {
> // Call service
> int status = httpClient.executeMethod(httpMethod);
> if (status == 200) {
> // Read reply
> Hessian2Input input =
> new
> Hessian2Input(httpMethod.getResponseBodyAsStream());
> input.startReply(); // Error occurs here
> Object obj = input.getReplyFault();
> if (obj == null) {
> obj = input.readObject();
> }
> input.completeReply ();
> if (obj instanceof Throwable) {
> throw (Throwable) obj;
> } else {
> return obj;
> }
> } else {
>
> System.out.println(httpMethod.getResponseBodyAsString());
> }
> } catch (Throwable e) {
> throw new Exception(e);
> } finally {
> System.out.println("status: " + httpMethod.getStatusLine());
> httpMethod.releaseConnection();
> }
> return null;
> }
>
> END OF CODE
>
>
> Once again, thank you.
> - ian
>
>
> On 6/27/07, Ben Hood <[EMAIL PROTECTED]> wrote:
> > On 6/20/07, ian tabangay <[EMAIL PROTECTED]> wrote:
> > > Hi. Has anyone encountered this kind of exception when using the hessian
> > > 3.1.1? im getting this exception when the server encountered an
> exception
> > > when executing the service. Can anyone give suggestions how i can go
> around
> > > this problem? Thanks.
> >
> > Could you give us a brief version of the code that causes this problem?
> >
>
>
--
int main(){long u=0x6e6562;printf("%.4s",(char*)&u);}
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