1 files changed, 69 insertions, 0 deletions
diff --git a/java/java/cluster/src/org/apache/qpid/server/cluster/replay/ConsumerCounts.java b/java/java/cluster/src/org/apache/qpid/server/cluster/replay/ConsumerCounts.java
new file mode 100644
index 0000000000..3bd9f5d387
--- /dev/null
+++ b/java/java/cluster/src/org/apache/qpid/server/cluster/replay/ConsumerCounts.java
@@ -0,0 +1,69 @@
+/*
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ *
+ */
+package org.apache.qpid.server.cluster.replay;
+
+import org.apache.qpid.framing.AMQMethodBody;
+import org.apache.qpid.framing.BasicConsumeBody;
+
+import java.util.Map;
+import java.util.HashMap;
+import java.util.List;
+
+class ConsumerCounts
+{
+    private final Map<String, Integer> _counts = new HashMap<String, Integer>();
+
+    synchronized void increment(String queue)
+    {
+        _counts.put(queue, get(queue) + 1);
+    }
+
+   synchronized void decrement(String queue)
+    {
+        _counts.put(queue,  get(queue) - 1);
+    }
+
+    private int get(String queue)
+    {
+        Integer count = _counts.get(queue);
+        return count == null ? 0 : count;
+    }
+
+    synchronized void replay(List<AMQMethodBody> messages)
+    {
+        for(String queue : _counts.keySet())
+        {
+            BasicConsumeBody m = new BasicConsumeBody();
+            m.queue = queue;
+            m.consumerTag = queue;
+            replay(m, messages);
+        }
+    }
+
+    private void replay(BasicConsumeBody msg, List<AMQMethodBody> messages)
+    {
+        int count = _counts.get(msg.queue);
+        for(int i = 0; i < count; i++)
+        {
+            messages.add(msg);
+        }
+    }
+}