QPID-1730: make it easy to configure queues, fix inheriting settings from the virtualhost.

AMQQueue.configure: new method
AMQQueueFactory: use AMQQueue.configure, don't set things directly
SimpleAMQQueue.configure, MockAMQQueue.configure: implement new method from the interface
QueueConfiguration: use VirtualHostConfiguration for default values if they're unset
VirtualHostConfiguration: if a queue doesn't exist, give it a default configuration. Add methods to get default settings for configuration items
QueueConfigurationTest: test case, checks that inheritance and defaults work along with explicitly set values.

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk/qpid@761721 13f79535-47bb-0310-9956-ffa450edef68

5 files changed, 62 insertions, 21 deletions

diff --git a/java/broker/src/main/java/org/apache/qpid/server/configuration/QueueConfiguration.java b/java/broker/src/main/java/org/apache/qpid/server/configuration/QueueConfiguration.java
index e6c5dee90d..256d15e7db 100644
--- a/java/broker/src/main/java/org/apache/qpid/server/configuration/QueueConfiguration.java
+++ b/java/broker/src/main/java/org/apache/qpid/server/configuration/QueueConfiguration.java
@@ -21,30 +21,26 @@
 package org.apache.qpid.server.configuration;
 
 import java.util.List;
-import java.io.File;
 
 import org.apache.commons.configuration.Configuration;
-import org.apache.qpid.server.registry.ApplicationRegistry;
 
 public class QueueConfiguration
 {
-
-    // FIXME AIDAN XXX -- deal with defaults
     
     private Configuration _config;
     private String _name;
-    private VirtualHostConfiguration _virtualHostConfiguration;
+    private VirtualHostConfiguration _vHostConfig;
 
     public QueueConfiguration(String name, Configuration config, VirtualHostConfiguration virtualHostConfiguration)
     {
-        _virtualHostConfiguration = virtualHostConfiguration;
+        _vHostConfig = virtualHostConfiguration;
         _config = config;
         _name = name;
     }
 
     public VirtualHostConfiguration getVirtualHostConfiguration()
     {
-        return _virtualHostConfiguration;
+        return _vHostConfig;
     }
 
     public boolean getDurable()
@@ -87,29 +83,29 @@ public class QueueConfiguration
         return _name;
     }
 
-    public long getMaximumMessageAge()
+    public int getMaximumMessageAge()
     {
-        return _config.getLong("maximumMessageAge", 0);
+        return _config.getInt("maximumMessageAge", _vHostConfig.getMaximumMessageAge());
     }
 
     public long getMaximumQueueDepth()
     {
-        return _config.getLong("maximumQueueDepth", 0);
+        return _config.getLong("maximumQueueDepth", _vHostConfig.getMaximumQueueDepth());
     }
 
     public long getMaximumMessageSize()
     {
-        return _config.getLong("maximumMessageSize", 0);
+        return _config.getLong("maximumMessageSize", _vHostConfig.getMaximumMessageSize());
     }
 
     public long getMaximumMessageCount()
     {
-        return _config.getLong("maximumMessageCount", 0);
+        return _config.getLong("maximumMessageCount", _vHostConfig.getMaximumMessageCount());
     }
 
     public long getMinimumAlertRepeatGap()
     {
-        return _config.getLong("minimumAlertRepeatGap", 0);
+        return _config.getLong("minimumAlertRepeatGap", _vHostConfig.getMinimumAlertRepeatGap());
     }
 
     public long getMemoryUsageMaximum()
diff --git a/java/broker/src/main/java/org/apache/qpid/server/configuration/VirtualHostConfiguration.java b/java/broker/src/main/java/org/apache/qpid/server/configuration/VirtualHostConfiguration.java
index 343abe4b5a..8d9f848b49 100644
--- a/java/broker/src/main/java/org/apache/qpid/server/configuration/VirtualHostConfiguration.java
+++ b/java/broker/src/main/java/org/apache/qpid/server/configuration/VirtualHostConfiguration.java
@@ -142,7 +142,16 @@ public class VirtualHostConfiguration
 
     public QueueConfiguration getQueueConfiguration(String queueName)
     {
-        return _queues.get(queueName);
+        // We might be asked for the config for a queue we don't know about,
+        // such as one that's been dynamically created. Those get the defaults by default.
+        if (_queues.containsKey(queueName)) 
+        {
+            return _queues.get(queueName);
+        } 
+        else
+        {
+            return new QueueConfiguration(queueName, new PropertiesConfiguration(), this);
+        }
     }
 
     public long getMemoryUsageMaximum()
@@ -166,4 +175,29 @@ public class VirtualHostConfiguration
         return _config.getString(FLOW_TO_DISK_PATH, getServerConfiguration().getQpidWork());
     }
 
+    public int getMaximumMessageAge()
+    {
+        return _config.getInt("queues.maximumMessageAge", 0);
+    }
+
+    public Long getMaximumQueueDepth()
+    {
+        return _config.getLong("queues.maximumQueueDepth", 0);
+    }
+
+    public Long getMaximumMessageSize()
+    {
+        return _config.getLong("queues.maximumMessageSize", 0);
+    }
+
+    public Long getMaximumMessageCount()
+    {
+        return _config.getLong("queues.maximumMessageCount", 0);
+    }
+
+    public Long getMinimumAlertRepeatGap()
+    {
+        return _config.getLong("queues.minimumAlertRepeatGap", 0);
+    }
+
 }
diff --git a/java/broker/src/main/java/org/apache/qpid/server/queue/AMQQueue.java b/java/broker/src/main/java/org/apache/qpid/server/queue/AMQQueue.java
index 43ec6c4d15..fae219e320 100644
--- a/java/broker/src/main/java/org/apache/qpid/server/queue/AMQQueue.java
+++ b/java/broker/src/main/java/org/apache/qpid/server/queue/AMQQueue.java
@@ -215,4 +215,6 @@ public interface AMQQueue extends Managable, Comparable<AMQQueue>
     {
         public void doTask(AMQQueue queue) throws AMQException;
     }
+
+    void configure(QueueConfiguration config);
 }
diff --git a/java/broker/src/main/java/org/apache/qpid/server/queue/AMQQueueFactory.java b/java/broker/src/main/java/org/apache/qpid/server/queue/AMQQueueFactory.java
index 6ba22321f1..b77a9d8f6a 100644
--- a/java/broker/src/main/java/org/apache/qpid/server/queue/AMQQueueFactory.java
+++ b/java/broker/src/main/java/org/apache/qpid/server/queue/AMQQueueFactory.java
@@ -134,13 +134,7 @@ public class AMQQueueFactory
         }
 
         AMQQueue q = createAMQQueueImpl(queueName, durable, owner, autodelete, host, arguments);
-        q.setMaximumMessageAge(config.getMaximumMessageAge());
-        q.setMaximumQueueDepth(config.getMaximumQueueDepth());
-        q.setMaximumMessageSize(config.getMaximumMessageSize());
-        q.setMaximumMessageCount(config.getMaximumMessageCount());
-        q.setMinimumAlertRepeatGap(config.getMinimumAlertRepeatGap());
-        q.setMemoryUsageMaximum(config.getMemoryUsageMaximum());
-        q.setMemoryUsageMinimum(config.getMemoryUsageMinimum());
+        q.configure(config);
         return q;
     }
 }
diff --git a/java/broker/src/main/java/org/apache/qpid/server/queue/SimpleAMQQueue.java b/java/broker/src/main/java/org/apache/qpid/server/queue/SimpleAMQQueue.java
index e5898ceda9..6805d8261e 100644
--- a/java/broker/src/main/java/org/apache/qpid/server/queue/SimpleAMQQueue.java
+++ b/java/broker/src/main/java/org/apache/qpid/server/queue/SimpleAMQQueue.java
@@ -19,6 +19,7 @@ import org.apache.qpid.framing.AMQShortString;
 import org.apache.qpid.framing.FieldTable;
 import org.apache.qpid.pool.ReadWriteRunnable;
 import org.apache.qpid.pool.ReferenceCountingExecutorService;
+import org.apache.qpid.server.configuration.QueueConfiguration;
 import org.apache.qpid.server.exchange.Exchange;
 import org.apache.qpid.server.management.ManagedObject;
 import org.apache.qpid.server.output.ProtocolOutputConverter;
@@ -1627,4 +1628,18 @@ public class SimpleAMQQueue implements AMQQueue, Subscription.StateListener
     {
         return getType() + "[Owner:" + _owner + "][Durable:" + _durable + "]";
     }
+
+    public void configure(QueueConfiguration config)
+    {
+        if (config != null)
+        {
+            setMaximumMessageAge(config.getMaximumMessageAge());
+            setMaximumQueueDepth(config.getMaximumQueueDepth());
+            setMaximumMessageSize(config.getMaximumMessageSize());
+            setMaximumMessageCount(config.getMaximumMessageCount());
+            setMinimumAlertRepeatGap(config.getMinimumAlertRepeatGap());
+            setMemoryUsageMaximum(config.getMemoryUsageMaximum());
+            setMemoryUsageMinimum(config.getMemoryUsageMinimum());
+        }
+    }
 }