1 files changed, 0 insertions, 103 deletions
diff --git a/java/java/client/src/org/apache/qpid/client/util/FlowControllingBlockingQueue.java b/java/java/client/src/org/apache/qpid/client/util/FlowControllingBlockingQueue.java
deleted file mode 100644
index 5b7144b524..0000000000
--- a/java/java/client/src/org/apache/qpid/client/util/FlowControllingBlockingQueue.java
+++ /dev/null
@@ -1,103 +0,0 @@
-/*
- *
- * 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.client.util;
-
-import java.util.concurrent.BlockingQueue;
-import java.util.concurrent.LinkedBlockingQueue;
-
-/**
- * A blocking queue that emits events above a user specified threshold allowing
- * the caller to take action (e.g. flow control) to try to prevent the queue
- * growing (much) further. The underlying queue itself is not bounded therefore
- * the caller is not obliged to react to the events.
- * <p/>
- * This implementation is <b>only</b> safe where we have a single thread adding
- * items and a single (different) thread removing items.
- */
-public class FlowControllingBlockingQueue
-{
-    /**
-     * This queue is bounded and is used to store messages before being dispatched to the consumer
-     */
-    private final BlockingQueue _queue = new LinkedBlockingQueue();
-
-    private final int _flowControlHighThreshold;
-    private final int _flowControlLowThreshold;
-
-    private final ThresholdListener _listener;
-
-    /**
-     * We require a separate count so we can track whether we have reached the
-     * threshold
-     */
-    private int _count;
-
-    public interface ThresholdListener
-    {
-        void aboveThreshold(int currentValue);
-
-        void underThreshold(int currentValue);
-    }
-
-    public FlowControllingBlockingQueue(int threshold, ThresholdListener listener)
-    {
-        this(threshold, threshold, listener);
-    }
-
-    public FlowControllingBlockingQueue(int highThreshold, int lowThreshold, ThresholdListener listener)
-    {
-        _flowControlHighThreshold = highThreshold;
-        _flowControlLowThreshold = lowThreshold;
-        _listener = listener;
-    }
-
-    public Object take() throws InterruptedException
-    {
-        Object o = _queue.take();
-        if (_listener != null)
-        {
-            synchronized(_listener)
-            {
-                if (_count-- == _flowControlLowThreshold)
-                {
-                    _listener.underThreshold(_count);
-                }
-            }
-        }
-        return o;
-    }
-
-    public void add(Object o)
-    {
-        _queue.add(o);
-        if (_listener != null)
-        {
-            synchronized(_listener)
-            {
-                if (++_count == _flowControlHighThreshold)
-                {
-                    _listener.aboveThreshold(_count);
-                }
-            }
-        }
-    }
-}
-