1 files changed, 153 insertions, 0 deletions
diff --git a/qpid/java/client/src/old_test/java/org/apache/qpid/latency/LatencyTest.java b/qpid/java/client/src/old_test/java/org/apache/qpid/latency/LatencyTest.java
new file mode 100644
index 0000000000..4865a68dc4
--- /dev/null
+++ b/qpid/java/client/src/old_test/java/org/apache/qpid/latency/LatencyTest.java
@@ -0,0 +1,153 @@
+/*
+ *
+ * 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.latency;
+
+import org.apache.qpid.client.AMQConnection;
+import org.apache.qpid.client.AMQQueue;
+import org.apache.qpid.client.AMQDestination;
+import org.apache.qpid.client.AMQSession;
+import org.apache.qpid.exchange.ExchangeDefaults;
+import org.apache.qpid.framing.AMQShortString;
+
+import javax.jms.MessageProducer;
+import javax.jms.Message;
+import javax.jms.MessageListener;
+import javax.jms.JMSException;
+import javax.jms.TextMessage;
+import javax.jms.BytesMessage;
+
+public class LatencyTest implements MessageListener
+{
+    private volatile boolean waiting;
+    private int sent;
+    private int received;
+
+    private final byte[] data;
+
+    private long min = Long.MAX_VALUE;
+    private long max = 0;
+    private long total = 0;
+
+    LatencyTest(String broker, int count, int delay, int length) throws Exception
+    {
+        this(new AMQConnection(broker, "guest", "guest", randomize("Client"), "/test"), count, delay, length);
+    }
+
+    LatencyTest(AMQConnection connection, int count, int delay, int length) throws Exception
+    {
+        this(connection, new AMQQueue(connection.getDefaultQueueExchangeName(), new AMQShortString(randomize("LatencyTest")), true), count, delay, length);
+    }
+
+    LatencyTest(AMQConnection connection, AMQDestination destination, int count, int delay, int length) throws Exception
+    {
+        AMQSession session = (AMQSession) connection.createSession(false, AMQSession.NO_ACKNOWLEDGE);
+
+        data = new byte[length];
+        for(int i = 0; i < data.length; i++)
+        {
+            data[i] = (byte) (i % 100);
+        }
+
+        //set up a consumer
+        session.createConsumer(destination).setMessageListener(this);
+        connection.start();
+
+        //create a publisher
+        MessageProducer producer = session.createProducer(destination, false, false, true);
+
+        //publish at a low volume
+        for(int i = 0; i < count; i++)
+        {
+            BytesMessage msg = session.createBytesMessage();
+            msg.writeBytes(data);
+            msg.setStringProperty("sent-at", Long.toString(System.nanoTime()));
+            producer.send(msg);
+            Thread.sleep(delay);
+            if(++sent % 100 == 0)
+            {
+                System.out.println("Sent " + sent + " of " + count);
+            }
+        }
+
+        waitUntilReceived(sent);
+
+        session.close();
+        connection.close();
+
+        System.out.println("Latency (in nanoseconds): avg=" + (total/sent) + ", min=" + min + ", max=" + max
+        + ", avg(discarding min and max)=" + ((total - min - max) / (sent - 2)));
+    }
+
+
+    private synchronized void waitUntilReceived(int count) throws InterruptedException
+    {
+        waiting = true;
+        while(received < count)
+        {
+            wait();
+        }
+        waiting = false;
+    }
+
+    public void onMessage(Message message)
+    {
+        received++;
+        try
+        {
+            long sent = Long.parseLong(message.getStringProperty("sent-at"));
+            long time = System.nanoTime() - sent;
+            total += time;
+            min = Math.min(min, time);
+            max = Math.max(max, time);
+        }
+        catch (JMSException e)
+        {
+            e.printStackTrace();
+        }
+
+        if(waiting){
+            synchronized(this)
+            {
+                notify();
+            }
+        }
+    }
+
+    private static String randomize(String in)
+    {
+        return in + System.currentTimeMillis();
+    }
+
+    public static void main(String[] argv) throws Exception
+    {
+        String host = argv.length > 0 ? argv[0] : "localhost:5672";
+        if("-help".equals(host))
+        {
+            System.out.println("Usage: <broker> <message count> <delay between messages> <message size>");
+        }
+        int count = argv.length > 1 ? Integer.parseInt(argv[1]) : 1000;
+        int delay = argv.length > 2 ? Integer.parseInt(argv[2]) : 1000;
+        int size = argv.length > 3 ? Integer.parseInt(argv[3]) : 512;
+        new LatencyTest(host, count, delay, size);
+    }
+
+
+}