QPID-6289: [Java Broker] Extend Java Broker model to encapsulate permitted child types

Work of Robert Godfrey <rgodfrey@apache.org>

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk@1648039 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 16 insertions, 0 deletions

diff --git a/qpid/java/broker-plugins/management-http/src/main/java/org/apache/qpid/server/management/plugin/servlet/rest/MetaDataServlet.java b/qpid/java/broker-plugins/management-http/src/main/java/org/apache/qpid/server/management/plugin/servlet/rest/MetaDataServlet.java
index 2947cfb85b..01dd873aa5 100644
--- a/qpid/java/broker-plugins/management-http/src/main/java/org/apache/qpid/server/management/plugin/servlet/rest/MetaDataServlet.java
+++ b/qpid/java/broker-plugins/management-http/src/main/java/org/apache/qpid/server/management/plugin/servlet/rest/MetaDataServlet.java
@@ -24,6 +24,7 @@ import java.io.IOException;
 import java.io.Writer;
 import java.util.ArrayList;
 import java.util.Collection;
+import java.util.HashMap;
 import java.util.HashSet;
 import java.util.LinkedHashMap;
 import java.util.Map;
@@ -101,9 +102,24 @@ public class MetaDataServlet extends AbstractServlet
         Map<String,Object> typeDetails = new LinkedHashMap<>();
         typeDetails.put("attributes", processAttributes(type));
         typeDetails.put("managedInterfaces", getManagedInterfaces(type));
+        typeDetails.put("validChildTypes", getValidChildTypes(type));
         return typeDetails;
     }
 
+    private Map<String, Collection<String>> getValidChildTypes(final Class<? extends ConfiguredObject> type)
+    {
+        Map<String, Collection<String>> validChildTypes = new HashMap<>();
+        for(Class<? extends ConfiguredObject> childType : _instance.getChildTypes(ConfiguredObjectTypeRegistry.getCategory(type)))
+        {
+            Collection<String> validValues = _instance.getTypeRegistry().getValidChildTypes(type, childType);
+            if(validValues != null)
+            {
+                validChildTypes.put(childType.getSimpleName(), validValues);
+            }
+        }
+        return validChildTypes;
+    }
+
     private Set<String> getManagedInterfaces(Class<? extends ConfiguredObject> type)
     {
         Set<String> interfaces = new HashSet<>();