I just reviewed the code, and it seems that the HttpHeaderResult only
parses the parameters headers and errorMessage, but not the parameters
status or error. I think it could be a nice thing to have. my workaround is
to extend JSONResult incorporating the following:
public void setStatusCode(String statusCode) {
ValueStack stack = ActionContext.getContext().getValueStack();
setStatusCode(Integer.parseInt(TextParseUtil.translateVariables(statusCode,
stack)));
}
public void setErrorCode(String errorCode) {
ValueStack stack = ActionContext.getContext().getValueStack();
setErrorCode(Integer.parseInt(TextParseUtil.translateVariables(errorCode,
stack)));
}
It works fine but I think that this feature should be incorporated to all
parameters. I would like to know opinions from other people before opening
a jira issue for this.
JL
2012/10/21 JOSE L MARTINEZ-AVIAL <jlm...@gmail.com>
> Hi,
> I'm using a json result type defined as follows:
>
> <result-type name="json-action" class="org.apache.struts2.json.JSONResult">
> <param name="ignoreHierarchy">false</param>
> <param
> name="includeProperties">resultName,resultMessage,data.*,fieldErrors.*,actionErrors.*,actionMessages.*</param>
> <param name="excludeNullProperties">true</param>
> <param name="noCache">true</param>
> <param name="errorCode">${errorCode}</param>
> </result-type>
>
> Everything works great, except the parameter errorCode. I populated the
> errorCode in the ValueStack doing:
>
> invocation.getStack().set("errorCode", errorCode);
>
> where errorCode is an int. But the errorcode is not been setup in the
> response, and in fact I can see the following stacktrace:
> 2012-10-21 02:54:01,060 INFO com.opensymphony.xwork2.ObjectFactory -
> Exception
> Caught OgnlException while setting property 'errorCode' on type
> 'org.apache.struts2.json.JSONResult'. - Class: ognl.OgnlRuntime
> File: OgnlRuntime.java
> Method: callAppropriateMethod
> Line: 1226 - ognl/OgnlRuntime.java:1226:-1
> at
> com.opensymphony.xwork2.ognl.OgnlUtil.internalSetProperty(OgnlUtil.java:412)
> at
> com.opensymphony.xwork2.ognl.OgnlUtil.setProperty(OgnlUtil.java:160)
> at
> com.opensymphony.xwork2.ognl.OgnlReflectionProvider.setProperty(OgnlReflectionProvider.java:91)
> at
> com.opensymphony.xwork2.ObjectFactory.buildResult(ObjectFactory.java:243)
> at
> com.opensymphony.xwork2.DefaultActionInvocation.createResult(DefaultActionInvocation.java:223)
> at
> com.opensymphony.xwork2.DefaultActionInvocation.executeResult(DefaultActionInvocation.java:372)
> at
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:282)
> at
> com.spb.mvc.security.authentication.web.RedirectToLoginInterceptor.intercept(RedirectToLoginInterceptor.java:28)
> at
> com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:253)
> at
> org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:52)
> at
> org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:498)
> at
> org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:77)
> at
> org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:91)
> at
> weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:42)
> at
> com.spb.eco.security.auditory.web.Log4jSessionIdFilter.doFilter(Log4jSessionIdFilter.java:47)
> at
> weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:42)
> at
> weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3496)
> at
> weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
> at weblogic.security.service.SecurityManager.runAs(Unknown Source)
> at
> weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2180)
> at
> weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2086)
> at
> weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1406)
> at weblogic.work.ExecuteThread.execute(ExecuteThread.java:201)
> at weblogic.work.ExecuteThread.run(ExecuteThread.java:173)
> Caused by: java.lang.NoSuchMethodException:
> org.apache.struts2.json.JSONResult.setErrorCode(java.lang.String)
> at ognl.OgnlRuntime.callAppropriateMethod(OgnlRuntime.java:1226)
> at ognl.OgnlRuntime.setMethodValue(OgnlRuntime.java:1474)
> at
> ognl.ObjectPropertyAccessor.setPossibleProperty(ObjectPropertyAccessor.java:85)
> at
> ognl.ObjectPropertyAccessor.setProperty(ObjectPropertyAccessor.java:162)
> at
> com.opensymphony.xwork2.ognl.accessor.ObjectAccessor.setProperty(ObjectAccessor.java:27)
> at ognl.OgnlRuntime.setProperty(OgnlRuntime.java:2245)
> at ognl.ASTProperty.setValueBody(ASTProperty.java:127)
> at ognl.SimpleNode.evaluateSetValueBody(SimpleNode.java:220)
> at ognl.SimpleNode.setValue(SimpleNode.java:301)
> at ognl.Ognl.setValue(Ognl.java:737)
> at
> com.opensymphony.xwork2.ognl.OgnlUtil.setValue(OgnlUtil.java:209)
> at
> com.opensymphony.xwork2.ognl.OgnlUtil.internalSetProperty(OgnlUtil.java:405)
>
> So it seems it is trying to setup the errorCode with the string
> ${errorCode}, instead of parsing the OGNL expression. I found a similar
> question on StackOverflow
> http://stackoverflow.com/questions/4372498/dynamic-wrapprefix-for-json-result-type-in-struts2,
> where somebody sees that the jsonResult does not parse the parameters. But
> for example the result type httpheader does parse OGNL expression, so is
> there any way I can get the json type to parse the parameter value?
>
> Thanjks
>
