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https://issues.apache.org/jira/browse/QPID-4874?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13785378#comment-13785378
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Keith Wall commented on QPID-4874:
----------------------------------
When tested against trunk today (0.25), with Michal's addr:, I don't see
endless exchange output from a REST calls that he reported (I tested /exchange
and /structure), but I do see the following exception as it tries to serialise
the (Qpid) SecurityManager.
It seems wrong that the ExchangeAdapter object is exposing the
o.a.q.s.e.Exchange - it should be exposing the Exchange model object. This
would then following the same pattern as QueueAdapter#ALTERNATE_EXCHANGE
attribute.
{code}
2013-10-03 18:00:58,112 ERROR [qtp2123954626-50] (rest.AbstractServlet) -
Unable to perform action
java.security.PrivilegedActionException:
org.codehaus.jackson.map.JsonMappingException: No serializer found for class
org.apache.qpid.server.security.SecurityManager and no properties discovered to
create BeanSerializer (to avoid exception, disable
SerializationConfig.Feature.FAIL_ON_EMPTY_BEANS) ) (through reference chain:
java.util.ArrayList[0]->java.util.LinkedHashMap["exchanges"]->java.util.ArrayList[4]->java.util.LinkedHashMap["alternateExchange"]->org.apache.qpid.server.exchange.FanoutExchange["virtualHost"]->org.apache.qpid.server.virtualhost.StandardVirtualHost["securityManager"])
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:396)
at
org.apache.qpid.server.management.plugin.servlet.rest.AbstractServlet.doWithSubjectAndActor(AbstractServlet.java:208)
at
org.apache.qpid.server.management.plugin.servlet.rest.AbstractServlet.doGet(AbstractServlet.java:74)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:693)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:806)
at
org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:652)
at
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1320)
at
org.apache.qpid.server.management.plugin.filter.ForbiddingAuthorisationFilter.doFilter(ForbiddingAuthorisationFilter.java:90)
at
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1291)
at
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:443)
at
org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:225)
at
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1044)
at
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:372)
at
org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:189)
at
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:978)
at
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135)
at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)
at org.eclipse.jetty.server.Server.handle(Server.java:367)
at
org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:486)
at
org.eclipse.jetty.server.AbstractHttpConnection.headerComplete(AbstractHttpConnection.java:926)
at
org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.headerComplete(AbstractHttpConnection.java:988)
at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:640)
at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:235)
at
org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:82)
at
org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:628)
at
org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:52)
at
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:608)
at
org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:543)
at java.lang.Thread.run(Thread.java:662)
Caused by: org.codehaus.jackson.map.JsonMappingException: No serializer found
for class org.apache.qpid.server.security.SecurityManager and no properties
discovered to create BeanSerializer (to avoid exception, disable
SerializationConfig.Feature.FAIL_ON_EMPTY_BEANS) ) (through reference chain:
java.util.ArrayList[0]->java.util.LinkedHashMap["exchanges"]->java.util.ArrayList[4]->java.util.LinkedHashMap["alternateExchange"]->org.apache.qpid.server.exchange.FanoutExchange["virtualHost"]->org.apache.qpid.server.virtualhost.StandardVirtualHost["securityManager"])
at
org.codehaus.jackson.map.ser.impl.UnknownSerializer.failForEmpty(UnknownSerializer.java:52)
{code}
> Alternate exchange unable to set from REST
> ------------------------------------------
>
> Key: QPID-4874
> URL: https://issues.apache.org/jira/browse/QPID-4874
> Project: Qpid
> Issue Type: Bug
> Components: Java Broker
> Affects Versions: 0.20
> Reporter: Michal Zerola
> Fix For: Future
>
> Attachments: alternate_exch_fix.patch
>
>
> This is a follow-up on the discussion started on:
> http://mail-archives.apache.org/mod_mbox/qpid-users/201303.mbox/%3CCAFitrpTiPo_yMhitGBM-1=QiW8xnKz3O2tqgSP3xbooDDC=y...@mail.gmail.com%3E
> I haven't seen any JIRA covering this issue yet. Setting an alternate
> exchange on the exchange is not possible now from the REST interface (e.g.
> using curl / web management).
> The only way how one can set an alternate exchange is using the proper
> address from the JMS client and passing it to the _MessageProducer_:
> {noformat}
> "ADDR:test-exch; {create: always, node:{type: topic,x-declare:
> {alternate-exchange:'amq.fanout'}}}"
> {noformat}
> The exchange _test-exch_ will then keep reference to the alternate exchange
> _amq.fanout_. However, listing the exchange using the _curl_ will fail
> (produce endless output). I assume that the problem is caused by Json mapper,
> having problems to write object which is not _ConfiguredObject_ (in this case
> it is _FanoutExchange_). This problem is reproducible by creating the
> exchange with alternate exchange reference using the address above and
> listing the exchange(s) with curl command. I think the solution can be to
> return the alternate exchange name (and not an object) from the
> _ExchangeAdapter.java_ as I illustrated in the attached patch.
> Thank you,
> Michal
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