Laurie Harper wrote:
Allen Gilliland wrote:
when chaining from one action to another, why is struts2 trying to
lookup the "input" result on action2 before ever executing my action
method?
i have a simple config, like the examples in the documentation ...
<action name="members!*" method="{1}"
class="org.apache.roller.ui.authoring.struts2.Members">
<result name="list" type="tiles">.Members</result>
</action>
<action name="invite!*" method="{1}"
class="org.apache.roller.ui.authoring.struts2.MembersInvite">
<result name="input" type="tiles">.MembersInvite</result>
<result name="disabled" type="tiles">.disabled</result>
<result name="success" type="chain">members</result>
</action>
when i execute the 'invite' action it stores an invitation in the db
and adds an action message to notify the user and then i return
SUCCESS, which should just chain to the execute() method of my
'members' action right?
well when i do this everything works properly in the 'invite' action
and through debugging i can see that my 'members' action class is
instantiated as if it's going to be executed, but the execute() method
is never called and struts2 gives an error about not being able to
find the "input" result on my 'members' action. why is this happening?
No result defined for action
org.apache.roller.ui.authoring.struts2.Members and result input
Well, firstly, you don't have a result named 'input' on your members
action... but I guess you're more interested in why Struts is looking
for it :-)
yep, and i don't need an 'input' result on that action. the baffling
part to me is why struts2 is even trying to look for that result when
nothing in my action returns that result.
Does the members action have any conversion or validation configured?
Struts will automatically forward to the 'input' result if errors occur
during conversion or validation. If that's not it, you'll need to post
more details, such as your action code and anything written to the logs
as the request is being processed.
nope, no conversion or validation. i ran into the problem with the
validation interceptor when i first started working with struts2 and
mistakenly had a validation() method in my action without realizing
struts2 was going to execute that method without my knowledge, but i
removed all my old validation() methods so i know it's not that.
i'll post the skeleton of the action class if that will help, but it's
quite simple.
public class Members extends UIAction implements ParameterAware {
private static Log log = LogFactory.getLog(Members.class);
// raw parameters from request
private Map parameters = Collections.EMPTY_MAP;
public Members() {
log.debug("Instantiating members action");
}
public String execute() {
log.debug("Showing weblog members page");
return LIST;
}
public String save() {
log.debug("Attempting to processing weblog permissions updates");
... do work ...
return LIST;
}
// convenience for accessing a single parameter with a single value
public String getParameter(String key) ...
public Map getParameters() ...
public void setParameters(Map parameters) ...
}
here's the full debugging output from my logs showing that the first
action successfully completes and returns a SUCCESS result which chains
to the second action, but I can't figure out what is causing struts2 to
bail on the chain execution before even calling my action method ...
DEBUG 2007-05-03 14:42:57,717 MembersInvite:save - Invitation
successfully recorded
DEBUG 2007-05-03 14:42:57,727 ActionChainResult:execute - Chaining to
action members
DEBUG 2007-05-03 14:42:57,729 DefaultActionProxy:<init> - Creating an
DefaultActionProxy for namespace /roller-ui/authoring and action name
members
DEBUG 2007-05-03 14:42:57,731 ActionConfigMatcher:match - Attempting to
match 'members' to a wildcard pattern, 32 available
DEBUG 2007-05-03 14:42:57,733 ActionConfigMatcher:match - Path matches
pattern 'members!*'
DEBUG 2007-05-03 14:42:57,735 Members:<init> - Instantiating members action
DEBUG 2007-05-03 14:42:57,737 I18nInterceptor:intercept - intercept
'/roller-ui/authoring/members' {
DEBUG 2007-05-03 14:42:57,739 I18nInterceptor:intercept -
requested_locale=null
DEBUG 2007-05-03 14:42:57,741 I18nInterceptor:intercept - before
Locale=en_US
DEBUG 2007-05-03 14:42:57,763 InstantiatingNullHandler:nullPropertyValue
- Entering nullPropertyValue
[EMAIL PROTECTED],
[EMAIL PROTECTED],
[EMAIL PROTECTED], property=inviteMember]
DEBUG 2007-05-03 14:42:57,775 InstantiatingNullHandler:nullPropertyValue
- Entering nullPropertyValue
[EMAIL PROTECTED],
[EMAIL PROTECTED],
[EMAIL PROTECTED], property=struts]
DEBUG 2007-05-03 14:42:57,791 FileUploadInterceptor:intercept -
Bypassing /roller-ui/authoring/ members
DEBUG 2007-05-03 14:42:57,793 StaticParametersInterceptor:intercept -
Setting static parameters {}
DEBUG 2007-05-03 14:42:57,796 ParametersInterceptor:intercept - Setting
params userName => [ blah ] weblog => [ test ] inviteMember.button.save
=> [ Send Invitation ] permission => [ 1 ]
DEBUG 2007-05-03 14:42:57,799 InstantiatingNullHandler:nullPropertyValue
- Entering nullPropertyValue
[EMAIL PROTECTED],
[EMAIL PROTECTED],
[EMAIL PROTECTED], property=inviteMember]
ERROR 2007-05-03 14:42:57,805 ParametersInterceptor:setParameters -
ParametersInterceptor - [setParameters]: Unexpected Exception catched:
Error setting expression 'inviteMember.button.save' with value
'[Ljava.lang.String;@a3c5b6'
DEBUG 2007-05-03 14:42:57,808 XWorkConverter:getConverter - Property:
permissionDEBUG 2007-05-03 14:42:57,811 XWorkConverter:getConverter -
Class: org.apache.roller.ui.authoring.struts2.MembersInvite
DEBUG 2007-05-03 14:42:57,814 XWorkConverter:convertValue - field-level
type converter for property [permission] = none found
DEBUG 2007-05-03 14:42:57,817 XWorkConverter:convertValue - global-level
type converter for property [permission] = none found
DEBUG 2007-05-03 14:42:57,821 XWorkConverter:convertValue - falling back
to default type converter
[EMAIL PROTECTED]
DEBUG 2007-05-03 14:42:57,824 XWorkConverter:getConverter - Property:
userName
DEBUG 2007-05-03 14:42:57,826 XWorkConverter:getConverter - Class:
org.apache.roller.ui.authoring.struts2.MembersInvite
DEBUG 2007-05-03 14:42:57,828 XWorkConverter:convertValue - field-level
type converter for property [userName] = none found
DEBUG 2007-05-03 14:42:57,831 XWorkConverter:convertValue - global-level
type converter for property [userName] = none found
DEBUG 2007-05-03 14:42:57,833 XWorkConverter:convertValue - falling back
to default type converter
[EMAIL PROTECTED]
ERROR 2007-05-03 14:42:57,836 ParametersInterceptor:setParameters -
ParametersInterceptor - [setParameters]: Unexpected Exception catched:
Error setting expression 'weblog' with value '[Ljava.lang.String;@182815a'
DEBUG 2007-05-03 14:42:57,838 ValidationInterceptor:doBeforeInvocation -
Validating /roller-ui/authoring/members with method execute.
DEBUG 2007-05-03 14:42:57,868 DefaultWorkflowInterceptor:doIntercept -
Invoking validate() on action
[EMAIL PROTECTED]
DEBUG 2007-05-03 14:42:57,871
PrefixMethodInvocationUtil:getPrefixedMethod - cannot find method
[validateExecute] in action
[EMAIL PROTECTED]
DEBUG 2007-05-03 14:42:57,874
PrefixMethodInvocationUtil:getPrefixedMethod - cannot find method
[validateDoExecute] in action
[EMAIL PROTECTED]
DEBUG 2007-05-03 14:42:57,876 DefaultWorkflowInterceptor:doIntercept -
Errors on action [EMAIL PROTECTED],
returning result name 'input'
ERROR 2007-05-03 14:42:57,881 Dispatcher:serviceAction - Could not find
action or result
No result defined for action
org.apache.roller.ui.authoring.struts2.Members and result input - action
-
file:/export/home/app/blogs/dev/webserver7/https-gconf/web-app/gconf/_default/WEB-INF/classes/struts.xml:232:72
L.
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