I think I have to open a different JIRA for DDE to allow an "empty" value for the "Broker URL for input queue" field in Overview page of DDE GUI. Right now, the value of this field is "required".
-- Tong On Tue, Apr 21, 2009 at 12:04 AM, Marshall Schor <m...@schor.com> wrote: > Hi Jerry - > > I don't think this change is documented in our official documentation. > Could you either re-open this issue or do a new issue so we don't forget > to do that? I'm happy to "edit" someone else's first draft of updates, > or, if I get a chance I might try to update this myself (but I'm kind of > swamped with other work these days). > > Thanks. -Marshall > > Jerry Cwiklik (JIRA) wrote: > > [ > https://issues.apache.org/jira/browse/UIMA-1288?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel] > > > > Jerry Cwiklik closed UIMA-1288. > > ------------------------------- > > > > Resolution: Fixed > > > > > >> Need a Better Approach For Specifying UIMA AS Broker URL in Deployment > Descriptor > >> > --------------------------------------------------------------------------------- > >> > >> Key: UIMA-1288 > >> URL: https://issues.apache.org/jira/browse/UIMA-1288 > >> Project: UIMA > >> Issue Type: Improvement > >> Components: Async Scaleout > >> Reporter: Jerry Cwiklik > >> Assignee: Marshall Schor > >> > >> Each UIMA AS deployment descriptor requires at least one Broker URL for > the connection factory. Instead of hard coding the URL, perhaps a > placeholder for it should be used. At runtime, the placeholder could be > resolved to the actual URL by Spring resolver component. The value could > come from either an external file or from an environment. The new approach > should accommodate specifying more than one placeholder, since an aggregate > may have delegates whose queues are managed by a different broker. The new > approach would simplify deployment of UIMA AS services, especially during > testing. > >> A placeholder syntax could be inherited from Spring, where it looks like > ${placeholder-name}. > >> dd2spring would need to change to handle a placeholder notation in > addition to supporting hard coded broker URL that we use now. A new bean > must be added to the generated xml. It will be : > >> <bean > class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"> > >> <property name="systemPropertiesModeName" > value="SYSTEM_PROPERTIES_MODE_OVERRIDE"/> > >> </bean> > >> > >> This bean is setup to resolve placeholders using system variables, like > -Dplaceholder-name=placeholder-value > >> > > > > > -- Tong
