PluginManager: add support for getting ACLPluginFactories from OSGi and the ones we already know about.
*ApplicationRegistry*: return an ACLManager, not an ACLPlugin from getAccessManager.
ACLManager: use PluginManager to get all the available plugins. When being asked to authorize a particular request, hold a vote amongst all the plugins as to whether to allow or deny access.
ACLPlugin: return a ALLOWED/DENIED/ABSTAIN vote result. Fix typo in method name.
ACLPluginFactory: Factory class for ACLPlugins.
AccessResult: just use class SimpleName instead of getPluginName
PrincipalPermissions: return AuthzResult instead of boolean. Might want to maek use of Abstain for things it doesn't actually acare about instead of defaulting to Allowed.
AllowAll, DenyAll, BasicACLPlugin, SimpleXML: add Factory, return AuthzResult instead of boolean.
VirtualHost: get a new ACLManager and configure it with the virtualhost security section. Ensure that old config files which have the access_control_list outside of the main security.access section continue to work.
MockPluginManager: add mock class for tests
PluginTest: not having any plugins now returns an empty set, not null
MockAMQQueue: support name attribute
ACLManagerTest: tests for ACLManager class
ExchangeDenier, QueueDenier: new test classes for ACLManagerTest
PrincipalPermissionsTest: check for correct return result, not true/false anymore
Move plugin configuration to <security> section, not <security><access>
git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@742626 13f79535-47bb-0310-9956-ffa450edef68