--- /dev/null
+//
+// ========================================================================
+// Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd.
+// ------------------------------------------------------------------------
+// All rights reserved. This program and the accompanying materials
+// are made available under the terms of the Eclipse Public License v1.0
+// and Apache License v2.0 which accompanies this distribution.
+//
+// The Eclipse Public License is available at
+// http://www.eclipse.org/legal/epl-v10.html
+//
+// The Apache License v2.0 is available at
+// http://www.opensource.org/licenses/apache2.0.php
+//
+// You may elect to redistribute this code under either of these licenses.
+// ========================================================================
+//
+
+package org.eclipse.jetty.server;
+
+import java.io.IOException;
+import java.util.Arrays;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.ConcurrentMap;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.AtomicInteger;
+import java.util.concurrent.atomic.AtomicLong;
+
+import org.eclipse.jetty.io.Connection;
+import org.eclipse.jetty.util.annotation.ManagedAttribute;
+import org.eclipse.jetty.util.annotation.ManagedObject;
+import org.eclipse.jetty.util.annotation.ManagedOperation;
+import org.eclipse.jetty.util.component.AbstractLifeCycle;
+import org.eclipse.jetty.util.component.Container;
+import org.eclipse.jetty.util.component.ContainerLifeCycle;
+import org.eclipse.jetty.util.component.Dumpable;
+import org.eclipse.jetty.util.statistic.CounterStatistic;
+import org.eclipse.jetty.util.statistic.SampleStatistic;
+
+
+/* ------------------------------------------------------------ */
+/** A Connector.Listener that gathers Connector and Connections Statistics.
+ * Adding an instance of this class as with {@link AbstractConnector#addBean(Object)}
+ * will register the listener with all connections accepted by that connector.
+ */
+@ManagedObject("Connector Statistics")
+public class ConnectorStatistics extends AbstractLifeCycle implements Dumpable, Connection.Listener
+{
+ private final static Sample ZERO=new Sample();
+ private final AtomicLong _startMillis = new AtomicLong(-1L);
+ private final CounterStatistic _connectionStats = new CounterStatistic();
+ private final SampleStatistic _messagesIn = new SampleStatistic();
+ private final SampleStatistic _messagesOut = new SampleStatistic();
+ private final SampleStatistic _connectionDurationStats = new SampleStatistic();
+ private final ConcurrentMap<Connection, Sample> _samples = new ConcurrentHashMap<>();
+ private final AtomicInteger _closedIn = new AtomicInteger();
+ private final AtomicInteger _closedOut = new AtomicInteger();
+ private AtomicLong _nanoStamp=new AtomicLong();
+ private volatile int _messagesInPerSecond;
+ private volatile int _messagesOutPerSecond;
+
+ @Override
+ public void onOpened(Connection connection)
+ {
+ if (isStarted())
+ {
+ _connectionStats.increment();
+ _samples.put(connection,ZERO);
+ }
+ }
+
+ @Override
+ public void onClosed(Connection connection)
+ {
+ if (isStarted())
+ {
+ int msgsIn=connection.getMessagesIn();
+ int msgsOut=connection.getMessagesOut();
+ _messagesIn.set(msgsIn);
+ _messagesOut.set(msgsOut);
+ _connectionStats.decrement();
+ _connectionDurationStats.set(System.currentTimeMillis()-connection.getCreatedTimeStamp());
+
+ Sample sample=_samples.remove(connection);
+ if (sample!=null)
+ {
+ _closedIn.addAndGet(msgsIn-sample._messagesIn);
+ _closedOut.addAndGet(msgsOut-sample._messagesOut);
+ }
+ }
+ }
+
+ @ManagedAttribute("Total number of bytes received by this connector")
+ public int getBytesIn()
+ {
+ // TODO
+ return -1;
+ }
+
+ @ManagedAttribute("Total number of bytes sent by this connector")
+ public int getBytesOut()
+ {
+ // TODO
+ return -1;
+ }
+
+ @ManagedAttribute("Total number of connections seen by this connector")
+ public int getConnections()
+ {
+ return (int)_connectionStats.getTotal();
+ }
+
+ @ManagedAttribute("Connection duration maximum in ms")
+ public long getConnectionDurationMax()
+ {
+ return _connectionDurationStats.getMax();
+ }
+
+ @ManagedAttribute("Connection duration mean in ms")
+ public double getConnectionDurationMean()
+ {
+ return _connectionDurationStats.getMean();
+ }
+
+ @ManagedAttribute("Connection duration standard deviation")
+ public double getConnectionDurationStdDev()
+ {
+ return _connectionDurationStats.getStdDev();
+ }
+
+ @ManagedAttribute("Messages In for all connections")
+ public int getMessagesIn()
+ {
+ return (int)_messagesIn.getTotal();
+ }
+
+ @ManagedAttribute("Messages In per connection maximum")
+ public int getMessagesInPerConnectionMax()
+ {
+ return (int)_messagesIn.getMax();
+ }
+
+ @ManagedAttribute("Messages In per connection mean")
+ public double getMessagesInPerConnectionMean()
+ {
+ return _messagesIn.getMean();
+ }
+
+ @ManagedAttribute("Messages In per connection standard deviation")
+ public double getMessagesInPerConnectionStdDev()
+ {
+ return _messagesIn.getStdDev();
+ }
+
+ @ManagedAttribute("Connections open")
+ public int getConnectionsOpen()
+ {
+ return (int)_connectionStats.getCurrent();
+ }
+
+ @ManagedAttribute("Connections open maximum")
+ public int getConnectionsOpenMax()
+ {
+ return (int)_connectionStats.getMax();
+ }
+
+ @ManagedAttribute("Messages Out for all connections")
+ public int getMessagesOut()
+ {
+ return (int)_messagesIn.getTotal();
+ }
+
+ @ManagedAttribute("Messages In per connection maximum")
+ public int getMessagesOutPerConnectionMax()
+ {
+ return (int)_messagesIn.getMax();
+ }
+
+ @ManagedAttribute("Messages In per connection mean")
+ public double getMessagesOutPerConnectionMean()
+ {
+ return _messagesIn.getMean();
+ }
+
+ @ManagedAttribute("Messages In per connection standard deviation")
+ public double getMessagesOutPerConnectionStdDev()
+ {
+ return _messagesIn.getStdDev();
+ }
+
+ @ManagedAttribute("Connection statistics started ms since epoch")
+ public long getStartedMillis()
+ {
+ long start = _startMillis.get();
+ return start < 0 ? 0 : System.currentTimeMillis() - start;
+ }
+
+ @ManagedAttribute("Messages in per second calculated over period since last called")
+ public int getMessagesInPerSecond()
+ {
+ update();
+ return _messagesInPerSecond;
+ }
+
+ @ManagedAttribute("Messages out per second calculated over period since last called")
+ public int getMessagesOutPerSecond()
+ {
+ update();
+ return _messagesOutPerSecond;
+ }
+
+ @Override
+ public void doStart()
+ {
+ reset();
+ }
+
+ @Override
+ public void doStop()
+ {
+ _samples.clear();
+ }
+
+ @ManagedOperation("Reset the statistics")
+ public void reset()
+ {
+ _startMillis.set(System.currentTimeMillis());
+ _messagesIn.reset();
+ _messagesOut.reset();
+ _connectionStats.reset();
+ _connectionDurationStats.reset();
+ _samples.clear();
+ }
+
+ @Override
+ @ManagedOperation("dump thread state")
+ public String dump()
+ {
+ return ContainerLifeCycle.dump(this);
+ }
+
+ @Override
+ public void dump(Appendable out, String indent) throws IOException
+ {
+ ContainerLifeCycle.dumpObject(out,this);
+ ContainerLifeCycle.dump(out,indent,Arrays.asList(new String[]{"connections="+_connectionStats,"duration="+_connectionDurationStats,"in="+_messagesIn,"out="+_messagesOut}));
+ }
+
+ public static void addToAllConnectors(Server server)
+ {
+ for (Connector connector : server.getConnectors())
+ {
+ if (connector instanceof Container)
+ ((Container)connector).addBean(new ConnectorStatistics());
+ }
+ }
+
+ private static final long SECOND_NANOS=TimeUnit.SECONDS.toNanos(1);
+ private synchronized void update()
+ {
+ long now=System.nanoTime();
+ long then=_nanoStamp.get();
+ long duration=now-then;
+
+ if (duration>SECOND_NANOS/2)
+ {
+ if (_nanoStamp.compareAndSet(then,now))
+ {
+ long msgsIn=_closedIn.getAndSet(0);
+ long msgsOut=_closedOut.getAndSet(0);
+
+ for (Map.Entry<Connection, Sample> entry : _samples.entrySet())
+ {
+ Connection connection=entry.getKey();
+ Sample sample = entry.getValue();
+ Sample next = new Sample(connection);
+ if (_samples.replace(connection,sample,next))
+ {
+ msgsIn+=next._messagesIn-sample._messagesIn;
+ msgsOut+=next._messagesOut-sample._messagesOut;
+ }
+ }
+
+ _messagesInPerSecond=(int)(msgsIn*SECOND_NANOS/duration);
+ _messagesOutPerSecond=(int)(msgsOut*SECOND_NANOS/duration);
+ }
+ }
+ }
+
+ private static class Sample
+ {
+ Sample()
+ {
+ _messagesIn=0;
+ _messagesOut=0;
+ }
+
+ Sample(Connection connection)
+ {
+ _messagesIn=connection.getMessagesIn();
+ _messagesOut=connection.getMessagesOut();
+ }
+
+ final int _messagesIn;
+ final int _messagesOut;
+ }
+}
projects / gigi.git / blobdiff