You are viewing a plain text version of this content. The canonical link for it is here.
Posted to commits@directory.apache.org by dr...@apache.org on 2015/01/12 14:06:12 UTC

[04/50] [abbrv] directory-kerberos git commit: Renaming packages in contrib projects, using "apache"

http://git-wip-us.apache.org/repos/asf/directory-kerberos/blob/5a980a4d/contrib/haox-event/src/main/java/org/apache/haox/event/EventHub.java
----------------------------------------------------------------------
diff --git a/contrib/haox-event/src/main/java/org/apache/haox/event/EventHub.java b/contrib/haox-event/src/main/java/org/apache/haox/event/EventHub.java
new file mode 100644
index 0000000..08172bc
--- /dev/null
+++ b/contrib/haox-event/src/main/java/org/apache/haox/event/EventHub.java
@@ -0,0 +1,173 @@
+package org.apache.haox.event;
+
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Set;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.TimeoutException;
+
+public class EventHub implements Dispatcher {
+
+    private enum BuiltInEventType implements EventType {
+        STOP,
+        ALL
+    }
+
+    private boolean started = false;
+
+    private Map<Integer, InternalEventHandler> handlers =
+            new ConcurrentHashMap<Integer, InternalEventHandler>();
+
+    private Map<EventType, Set<Integer>> eventHandlersMap =
+        new ConcurrentHashMap<EventType, Set<Integer>>();
+
+    private InternalEventHandler builtInHandler;
+
+    class BuiltInEventHandler extends AbstractEventHandler {
+        public BuiltInEventHandler() {
+            super();
+        }
+
+        @Override
+        protected void doHandle(Event event) {
+
+        }
+
+        @Override
+        public EventType[] getInterestedEvents() {
+            return BuiltInEventType.values();
+        }
+    }
+
+    public EventHub() {
+        init();
+    }
+
+    private void init() {
+        EventHandler eh = new BuiltInEventHandler();
+        builtInHandler = new ExecutedEventHandler(eh);
+        register(builtInHandler);
+    }
+
+    @Override
+    public void dispatch(Event event) {
+        process(event);
+    }
+
+    @Override
+    public void register(EventHandler handler) {
+        handler.setDispatcher(this);
+        InternalEventHandler ieh = new ExecutedEventHandler(handler);
+        register(ieh);
+    }
+
+    @Override
+    public void register(InternalEventHandler handler) {
+        handler.setDispatcher(this);
+        handler.init();
+        handlers.put(handler.id(), handler);
+
+        if (started) {
+            handler.start();
+        }
+
+        EventType[] interestedEvents = handler.getInterestedEvents();
+        Set<Integer> tmpHandlers;
+        for (EventType eventType : interestedEvents) {
+            if (eventHandlersMap.containsKey(eventType)) {
+                tmpHandlers = eventHandlersMap.get(eventType);
+            } else {
+                tmpHandlers = new HashSet<Integer>();
+                eventHandlersMap.put(eventType, tmpHandlers);
+            }
+            tmpHandlers.add(handler.id());
+        }
+    }
+
+    public EventWaiter waitEvent(final EventType event) {
+        return waitEvent(new EventType[] { event } );
+    }
+
+    public EventWaiter waitEvent(final EventType... events) {
+        EventHandler handler = new AbstractEventHandler() {
+            @Override
+            protected void doHandle(Event event) throws Exception {
+                // no op;
+            }
+
+            @Override
+            public EventType[] getInterestedEvents() {
+                return events;
+            }
+        };
+
+        handler.setDispatcher(this);
+        final WaitEventHandler waitEventHandler = new WaitEventHandler(handler);
+        register(waitEventHandler);
+        EventWaiter waiter = new EventWaiter() {
+            @Override
+            public Event waitEvent(EventType event) {
+                return waitEventHandler.waitEvent(event);
+            }
+
+            @Override
+            public Event waitEvent() {
+                return waitEventHandler.waitEvent();
+            }
+
+            @Override
+            public Event waitEvent(EventType event, long timeout,
+                                   TimeUnit timeUnit) throws TimeoutException {
+                return waitEventHandler.waitEvent(event, timeout, timeUnit);
+            }
+
+            @Override
+            public Event waitEvent(long timeout, TimeUnit timeUnit) throws TimeoutException {
+                return waitEventHandler.waitEvent(timeout, timeUnit);
+            }
+        };
+
+        return waiter;
+    }
+
+    private void process(Event event) {
+        EventType eventType = event.getEventType();
+        InternalEventHandler handler;
+        Set<Integer> handlerIds;
+
+        if (eventHandlersMap.containsKey(eventType)) {
+            handlerIds = eventHandlersMap.get(eventType);
+            for (Integer hid : handlerIds) {
+                handler = handlers.get(hid);
+                handler.handle(event);
+            }
+        }
+
+        if (eventHandlersMap.containsKey(BuiltInEventType.ALL)) {
+            handlerIds = eventHandlersMap.get(BuiltInEventType.ALL);
+            for (Integer hid : handlerIds) {
+                handler = handlers.get(hid);
+                handler.handle(event);
+            }
+        }
+    }
+
+    public void start() {
+        if (!started) {
+            for (InternalEventHandler handler : handlers.values()) {
+                handler.start();
+            }
+            started = true;
+        }
+    }
+
+    public void stop() {
+        if (started) {
+            for (InternalEventHandler handler : handlers.values()) {
+                handler.stop();
+            }
+            started = false;
+        }
+    }
+}

http://git-wip-us.apache.org/repos/asf/directory-kerberos/blob/5a980a4d/contrib/haox-event/src/main/java/org/apache/haox/event/EventType.java
----------------------------------------------------------------------
diff --git a/contrib/haox-event/src/main/java/org/apache/haox/event/EventType.java b/contrib/haox-event/src/main/java/org/apache/haox/event/EventType.java
new file mode 100644
index 0000000..2ab4f02
--- /dev/null
+++ b/contrib/haox-event/src/main/java/org/apache/haox/event/EventType.java
@@ -0,0 +1,5 @@
+package org.apache.haox.event;
+
+public interface EventType {
+    // no op
+}

http://git-wip-us.apache.org/repos/asf/directory-kerberos/blob/5a980a4d/contrib/haox-event/src/main/java/org/apache/haox/event/EventWaiter.java
----------------------------------------------------------------------
diff --git a/contrib/haox-event/src/main/java/org/apache/haox/event/EventWaiter.java b/contrib/haox-event/src/main/java/org/apache/haox/event/EventWaiter.java
new file mode 100644
index 0000000..5a0fd53
--- /dev/null
+++ b/contrib/haox-event/src/main/java/org/apache/haox/event/EventWaiter.java
@@ -0,0 +1,16 @@
+package org.apache.haox.event;
+
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.TimeoutException;
+
+public interface EventWaiter {
+
+    public abstract Event waitEvent(EventType event);
+
+    public abstract Event waitEvent();
+
+    public abstract Event waitEvent(EventType event, long timeout, TimeUnit timeUnit) throws TimeoutException;
+
+    public abstract Event waitEvent(long timeout, TimeUnit timeUnit) throws TimeoutException;
+
+}

http://git-wip-us.apache.org/repos/asf/directory-kerberos/blob/5a980a4d/contrib/haox-event/src/main/java/org/apache/haox/event/ExecutedEventHandler.java
----------------------------------------------------------------------
diff --git a/contrib/haox-event/src/main/java/org/apache/haox/event/ExecutedEventHandler.java b/contrib/haox-event/src/main/java/org/apache/haox/event/ExecutedEventHandler.java
new file mode 100644
index 0000000..ae7d7fd
--- /dev/null
+++ b/contrib/haox-event/src/main/java/org/apache/haox/event/ExecutedEventHandler.java
@@ -0,0 +1,53 @@
+package org.apache.haox.event;
+
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+
+/**
+ * An EventHandler wrapper processing events using an ExecutorService
+ */
+public class ExecutedEventHandler extends AbstractInternalEventHandler {
+
+    private ExecutorService executorService;
+
+    public ExecutedEventHandler(EventHandler handler) {
+        super(handler);
+    }
+
+    @Override
+    protected void doHandle(final Event event) throws Exception {
+        executorService.execute(new Runnable() {
+            @Override
+            public void run() {
+                try {
+                    process(event);
+                } catch (Exception e) {
+                    throw new RuntimeException(e);
+                }
+            }
+        });
+    }
+
+    @Override
+    public void start() {
+        executorService = Executors.newFixedThreadPool(2);
+    }
+
+    @Override
+    public void stop() {
+        if (executorService.isShutdown()) {
+            return;
+        }
+        executorService.shutdownNow();
+    }
+
+    @Override
+    public boolean isStopped() {
+        return executorService.isShutdown();
+    }
+
+    @Override
+    public void init() {
+
+    }
+}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/directory-kerberos/blob/5a980a4d/contrib/haox-event/src/main/java/org/apache/haox/event/InternalEventHandler.java
----------------------------------------------------------------------
diff --git a/contrib/haox-event/src/main/java/org/apache/haox/event/InternalEventHandler.java b/contrib/haox-event/src/main/java/org/apache/haox/event/InternalEventHandler.java
new file mode 100644
index 0000000..8137427
--- /dev/null
+++ b/contrib/haox-event/src/main/java/org/apache/haox/event/InternalEventHandler.java
@@ -0,0 +1,15 @@
+package org.apache.haox.event;
+
+public interface InternalEventHandler extends EventHandler {
+
+    public int id();
+
+    public void init();
+
+    public void start();
+
+    public void stop();
+
+    public boolean isStopped();
+}
+

http://git-wip-us.apache.org/repos/asf/directory-kerberos/blob/5a980a4d/contrib/haox-event/src/main/java/org/apache/haox/event/LongRunningEventHandler.java
----------------------------------------------------------------------
diff --git a/contrib/haox-event/src/main/java/org/apache/haox/event/LongRunningEventHandler.java b/contrib/haox-event/src/main/java/org/apache/haox/event/LongRunningEventHandler.java
new file mode 100644
index 0000000..a8d5726
--- /dev/null
+++ b/contrib/haox-event/src/main/java/org/apache/haox/event/LongRunningEventHandler.java
@@ -0,0 +1,58 @@
+package org.apache.haox.event;
+
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+
+public abstract class LongRunningEventHandler extends BufferedEventHandler {
+
+    private ExecutorService executorService;
+
+    public LongRunningEventHandler(EventHandler handler) {
+        super(handler);
+    }
+
+    public LongRunningEventHandler() {
+        super();
+    }
+
+    protected abstract void loopOnce();
+
+    @Override
+    public void start() {
+        executorService = Executors.newFixedThreadPool(1);
+        executorService.execute(new Runnable() {
+            @Override
+            public void run() {
+                while (true) {
+
+                    processEvents();
+
+                    loopOnce();
+                }
+            }
+        });
+    }
+
+    @Override
+    public void stop() {
+        if (executorService.isShutdown()) {
+            return;
+        }
+        executorService.shutdownNow();
+    }
+
+    @Override
+    public boolean isStopped() {
+        return executorService.isShutdown();
+    }
+
+    protected void processEvents() {
+        while (! eventQueue.isEmpty()) {
+            try {
+                process(eventQueue.take());
+            } catch (InterruptedException e) {
+                throw new RuntimeException(e);
+            }
+        }
+    }
+}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/directory-kerberos/blob/5a980a4d/contrib/haox-event/src/main/java/org/apache/haox/event/WaitEventHandler.java
----------------------------------------------------------------------
diff --git a/contrib/haox-event/src/main/java/org/apache/haox/event/WaitEventHandler.java b/contrib/haox-event/src/main/java/org/apache/haox/event/WaitEventHandler.java
new file mode 100644
index 0000000..75d76a9
--- /dev/null
+++ b/contrib/haox-event/src/main/java/org/apache/haox/event/WaitEventHandler.java
@@ -0,0 +1,109 @@
+package org.apache.haox.event;
+
+import java.util.concurrent.*;
+
+public class WaitEventHandler extends BufferedEventHandler {
+
+    private ExecutorService executorService;
+
+    public WaitEventHandler(EventHandler handler) {
+        super(handler);
+    }
+
+    public Event waitEvent() {
+        return waitEvent(null);
+    }
+
+    public Event waitEvent(final EventType eventType) {
+        Future<Event> future = doWaitEvent(eventType);
+
+        try {
+            return future.get();
+        } catch (InterruptedException e) {
+            throw new RuntimeException(e);
+        } catch (ExecutionException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    public Event waitEvent(final EventType eventType,
+                           long timeout, TimeUnit timeUnit) throws TimeoutException {
+        Future<Event> future = doWaitEvent(eventType);
+
+        try {
+            return future.get(timeout, timeUnit);
+        } catch (InterruptedException e) {
+            throw new RuntimeException(e);
+        } catch (ExecutionException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    public Event waitEvent(long timeout, TimeUnit timeUnit) throws TimeoutException {
+        Future<Event> future = doWaitEvent(null);
+
+        try {
+            return future.get(timeout, timeUnit);
+        } catch (InterruptedException e) {
+            throw new RuntimeException(e);
+        } catch (ExecutionException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    private Future<Event> doWaitEvent(final EventType eventType) {
+        Future<Event> future = executorService.submit(new Callable<Event>() {
+            @Override
+            public Event call() throws Exception {
+                if (eventType != null) {
+                    return checkEvent(eventType);
+                } else {
+                    return checkEvent();
+                }
+            }
+        });
+
+        return future;
+    }
+
+    private Event checkEvent() throws Exception {
+        return eventQueue.take();
+    }
+
+    private Event checkEvent(EventType eventType) throws Exception {
+        Event event = null;
+
+        while (true) {
+            if (eventQueue.size() == 1) {
+                if (eventQueue.peek().getEventType() == eventType) {
+                    return eventQueue.take();
+                }
+            } else {
+                event = eventQueue.take();
+                if (event.getEventType() == eventType) {
+                    return event;
+                } else {
+                    eventQueue.put(event); // put back since not wanted
+                }
+            }
+        }
+    }
+
+    @Override
+    public void start() {
+        executorService = Executors.newFixedThreadPool(2);
+    }
+
+    @Override
+    public void stop() {
+        if (executorService.isShutdown()) {
+            return;
+        }
+        executorService.shutdown();
+    }
+
+    @Override
+    public boolean isStopped() {
+        return executorService.isShutdown();
+    }
+}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/directory-kerberos/blob/5a980a4d/contrib/haox-event/src/main/java/org/apache/haox/transport/Acceptor.java
----------------------------------------------------------------------
diff --git a/contrib/haox-event/src/main/java/org/apache/haox/transport/Acceptor.java b/contrib/haox-event/src/main/java/org/apache/haox/transport/Acceptor.java
new file mode 100644
index 0000000..0888b18
--- /dev/null
+++ b/contrib/haox-event/src/main/java/org/apache/haox/transport/Acceptor.java
@@ -0,0 +1,17 @@
+package org.apache.haox.transport;
+
+import java.net.InetSocketAddress;
+
+public abstract class Acceptor extends TransportSelector {
+
+    public Acceptor(TransportHandler transportHandler) {
+        super(transportHandler);
+    }
+
+    public void listen(String address, short listenPort) {
+        InetSocketAddress socketAddress = new InetSocketAddress(address, listenPort);
+        doListen(socketAddress);
+    }
+
+    protected abstract void doListen(InetSocketAddress socketAddress);
+}

http://git-wip-us.apache.org/repos/asf/directory-kerberos/blob/5a980a4d/contrib/haox-event/src/main/java/org/apache/haox/transport/BytesUtil.java
----------------------------------------------------------------------
diff --git a/contrib/haox-event/src/main/java/org/apache/haox/transport/BytesUtil.java b/contrib/haox-event/src/main/java/org/apache/haox/transport/BytesUtil.java
new file mode 100644
index 0000000..c3a3e99
--- /dev/null
+++ b/contrib/haox-event/src/main/java/org/apache/haox/transport/BytesUtil.java
@@ -0,0 +1,144 @@
+package org.apache.haox.transport;
+
+public class BytesUtil {
+
+    public static short bytes2short(byte[] bytes, int offset, boolean bigEndian) {
+        short val = 0;
+
+        if (bigEndian) {
+            val += (bytes[offset + 0] & 0xff) << 8;
+            val += (bytes[offset + 1] & 0xff);
+        } else {
+            val += (bytes[offset + 1] & 0xff) << 8;
+            val += (bytes[offset + 0] & 0xff);
+        }
+
+        return val;
+    }
+
+    public static short bytes2short(byte[] bytes, boolean bigEndian) {
+        return bytes2short(bytes, 0, bigEndian);
+    }
+
+    public static byte[] short2bytes(int val, boolean bigEndian) {
+        byte[] bytes = new byte[2];
+
+        short2bytes(val, bytes, 0, bigEndian);
+
+        return bytes;
+    }
+
+    public static void short2bytes(int val, byte[] bytes, int offset, boolean bigEndian) {
+        if (bigEndian) {
+            bytes[offset + 0] = (byte) ((val >> 8) & 0xff);
+            bytes[offset + 1] = (byte) ((val) & 0xff);
+        } else {
+            bytes[offset + 1] = (byte) ((val >>  8) & 0xff);
+            bytes[offset + 0] = (byte) ((val      ) & 0xff);
+        }
+    }
+
+    public static int bytes2int(byte[] bytes, boolean bigEndian) {
+        return bytes2int(bytes, 0, bigEndian);
+    }
+
+    public static int bytes2int(byte[] bytes, int offset, boolean bigEndian) {
+        int val = 0;
+
+        if (bigEndian) {
+            val += (bytes[offset + 0] & 0xff) << 24;
+            val += (bytes[offset + 1] & 0xff) << 16;
+            val += (bytes[offset + 2] & 0xff) << 8;
+            val += (bytes[offset + 3] & 0xff);
+        } else {
+            val += (bytes[offset + 3] & 0xff) << 24;
+            val += (bytes[offset + 2] & 0xff) << 16;
+            val += (bytes[offset + 1] & 0xff) << 8;
+            val += (bytes[offset + 0] & 0xff);
+        }
+
+        return val;
+    }
+
+    public static byte[] int2bytes(int val, boolean bigEndian) {
+        byte[] bytes = new byte[4];
+
+        int2bytes(val, bytes, 0, bigEndian);
+
+        return bytes;
+    }
+
+    public static void int2bytes(int val, byte[] bytes, int offset, boolean bigEndian) {
+        if (bigEndian) {
+            bytes[offset + 0] = (byte) ((val >> 24) & 0xff);
+            bytes[offset + 1] = (byte) ((val >> 16) & 0xff);
+            bytes[offset + 2] = (byte) ((val >> 8) & 0xff);
+            bytes[offset + 3] = (byte) ((val) & 0xff);
+        } else {
+            bytes[offset + 3] = (byte) ((val >> 24) & 0xff);
+            bytes[offset + 2] = (byte) ((val >> 16) & 0xff);
+            bytes[offset + 1] = (byte) ((val >> 8) & 0xff);
+            bytes[offset + 0] = (byte) ((val) & 0xff);
+        }
+    }
+
+    public static byte[] long2bytes(long val, boolean bigEndian) {
+        byte[] bytes = new byte[8];
+        long2bytes(val, bytes, 0, bigEndian);
+        return bytes;
+    }
+
+    public static void long2bytes(long val, byte[] bytes, int offset, boolean bigEndian) {
+        if (bigEndian) {
+            for (int i = 0; i < 8; i++) {
+                bytes[i + offset] = (byte) ((val >> ((7 - i) * 8)) & 0xffL);
+            }
+        } else {
+            for (int i = 0; i < 8; i++) {
+                bytes[i + offset] = (byte) ((val >> (i * 8)) & 0xffL);
+            }
+        }
+    }
+
+    public static long bytes2long(byte[] bytes, boolean bigEndian) {
+        return bytes2long(bytes, 0, bigEndian);
+    }
+
+    public static long bytes2long(byte[] bytes, int offset, boolean bigEndian) {
+        long val = 0;
+
+        if (bigEndian) {
+            for (int i = 0; i < 8; i++) {
+                val |= (((long) bytes[i + offset]) & 0xffL) << ((7 - i) * 8);
+            }
+        } else {
+            for (int i = 0; i < 8; i++) {
+                val |= (((long) bytes[i + offset]) & 0xffL) << (i * 8);
+            }
+        }
+
+        return val;
+    }
+
+    public static byte[] padding(byte[] data, int block) {
+        int len = data.length;
+        int paddingLen = len % block != 0 ? 8 - len % block : 0;
+        if (paddingLen == 0) {
+            return data;
+        }
+
+        byte[] result = new byte[len + + paddingLen];
+        System.arraycopy(data, 0, result, 0, len);
+        return result;
+    }
+
+    public static byte[] duplicate(byte[] bytes) {
+        return duplicate(bytes, 0, bytes.length);
+    }
+
+    public static byte[] duplicate(byte[] bytes, int offset, int len) {
+        byte[] dup = new byte[len];
+        System.arraycopy(bytes, offset, dup, 0, len);
+        return dup;
+    }
+}

http://git-wip-us.apache.org/repos/asf/directory-kerberos/blob/5a980a4d/contrib/haox-event/src/main/java/org/apache/haox/transport/Connector.java
----------------------------------------------------------------------
diff --git a/contrib/haox-event/src/main/java/org/apache/haox/transport/Connector.java b/contrib/haox-event/src/main/java/org/apache/haox/transport/Connector.java
new file mode 100644
index 0000000..4ba18ae
--- /dev/null
+++ b/contrib/haox-event/src/main/java/org/apache/haox/transport/Connector.java
@@ -0,0 +1,17 @@
+package org.apache.haox.transport;
+
+import java.net.InetSocketAddress;
+
+public abstract class Connector extends TransportSelector {
+
+    public Connector(TransportHandler transportHandler) {
+        super(transportHandler);
+    }
+
+    public void connect(String serverAddress, short serverPort) {
+        InetSocketAddress sa = new InetSocketAddress(serverAddress, serverPort);
+        doConnect(sa);
+    }
+
+    protected abstract void doConnect(InetSocketAddress sa);
+}

http://git-wip-us.apache.org/repos/asf/directory-kerberos/blob/5a980a4d/contrib/haox-event/src/main/java/org/apache/haox/transport/MessageHandler.java
----------------------------------------------------------------------
diff --git a/contrib/haox-event/src/main/java/org/apache/haox/transport/MessageHandler.java b/contrib/haox-event/src/main/java/org/apache/haox/transport/MessageHandler.java
new file mode 100644
index 0000000..1f61ca5
--- /dev/null
+++ b/contrib/haox-event/src/main/java/org/apache/haox/transport/MessageHandler.java
@@ -0,0 +1,23 @@
+package org.apache.haox.transport;
+
+import org.apache.haox.event.AbstractEventHandler;
+import org.apache.haox.event.Event;
+import org.apache.haox.event.EventType;
+import org.apache.haox.transport.event.MessageEvent;
+import org.apache.haox.transport.event.TransportEventType;
+
+public abstract class MessageHandler extends AbstractEventHandler {
+
+    @Override
+    protected void doHandle(Event event) throws Exception {
+        handleMessage((MessageEvent) event);
+    }
+
+    protected abstract void handleMessage(MessageEvent event) throws Exception;
+
+    @Override
+    public EventType[] getInterestedEvents() {
+        return new EventType[] { TransportEventType.INBOUND_MESSAGE };
+    }
+
+}

http://git-wip-us.apache.org/repos/asf/directory-kerberos/blob/5a980a4d/contrib/haox-event/src/main/java/org/apache/haox/transport/Network.java
----------------------------------------------------------------------
diff --git a/contrib/haox-event/src/main/java/org/apache/haox/transport/Network.java b/contrib/haox-event/src/main/java/org/apache/haox/transport/Network.java
new file mode 100644
index 0000000..017f661
--- /dev/null
+++ b/contrib/haox-event/src/main/java/org/apache/haox/transport/Network.java
@@ -0,0 +1,278 @@
+package org.apache.haox.transport;
+
+import org.apache.haox.event.AbstractEventHandler;
+import org.apache.haox.event.Event;
+import org.apache.haox.event.EventType;
+import org.apache.haox.event.LongRunningEventHandler;
+import org.apache.haox.transport.event.AddressEvent;
+import org.apache.haox.transport.event.TransportEvent;
+import org.apache.haox.transport.tcp.*;
+import org.apache.haox.transport.udp.UdpAddressEvent;
+import org.apache.haox.transport.udp.UdpEventType;
+import org.apache.haox.transport.udp.UdpTransport;
+import org.apache.haox.transport.udp.UdpTransportHandler;
+
+import java.io.IOException;
+import java.net.InetSocketAddress;
+import java.net.ServerSocket;
+import java.nio.channels.*;
+import java.util.Iterator;
+import java.util.Set;
+
+/**
+ * A combined and mixed network facility handling UDP and TCP in both connect and accept sides
+ */
+public class Network extends LongRunningEventHandler {
+
+    private Selector selector;
+    private StreamingDecoder streamingDecoder;
+    private UdpTransportHandler udpTransportHandler;
+    private TcpTransportHandler tcpTransportHandler;
+
+    class MyEventHandler extends AbstractEventHandler {
+        @Override
+        protected void doHandle(Event event) throws Exception {
+            if (event.getEventType() == UdpEventType.ADDRESS_CONNECT) {
+                doUdpConnect((AddressEvent) event);
+            } else if (event.getEventType() ==  UdpEventType.ADDRESS_BIND) {
+                doUdpBind((AddressEvent) event);
+            } else if (event.getEventType() ==  TcpEventType.ADDRESS_CONNECT) {
+                doTcpConnect((AddressEvent) event);
+            } else if (event.getEventType() ==  TcpEventType.ADDRESS_BIND) {
+                doTcpBind((AddressEvent) event);
+            }
+        }
+
+        @Override
+        public EventType[] getInterestedEvents() {
+            return new EventType[]{
+                    UdpEventType.ADDRESS_CONNECT,
+                    UdpEventType.ADDRESS_BIND,
+                    TcpEventType.ADDRESS_CONNECT,
+                    TcpEventType.ADDRESS_BIND
+            };
+        }
+    }
+
+    public Network() {
+        setEventHandler(new MyEventHandler());
+    }
+
+    @Override
+    public void init() {
+        super.init();
+
+        try {
+            selector = Selector.open();
+        } catch (IOException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    /**
+     * TCP transport only, for decoding tcp streaming into messages
+     * @param streamingDecoder
+     */
+    public void setStreamingDecoder(StreamingDecoder streamingDecoder) {
+        this.streamingDecoder = streamingDecoder;
+    }
+
+    /**
+     * TCP only. Connect on the given server address. Can be called multiple times
+     * for multiple servers
+     * @param serverAddress
+     * @param serverPort
+     */
+    public void tcpConnect(String serverAddress, short serverPort) {
+        InetSocketAddress sa = new InetSocketAddress(serverAddress, serverPort);
+        checkTcpTransportHandler();
+        doTcpConnect(sa);
+    }
+
+    /**
+     * UDP only. Connect on the given server address. Can be called multiple times
+     * for multiple servers
+     * @param serverAddress
+     * @param serverPort
+     */
+    public void udpConnect(String serverAddress, short serverPort) {
+        InetSocketAddress sa = new InetSocketAddress(serverAddress, serverPort);
+        checkUdpTransportHandler();
+        doUdpConnect(sa);
+    }
+
+    /**
+     * TCP only. Listen and accept connections on the address. Can be called multiple
+     * times for multiple server addresses.
+     * @param serverAddress
+     * @param serverPort
+     */
+    public void tcpListen(String serverAddress, short serverPort) {
+        InetSocketAddress sa = new InetSocketAddress(serverAddress, serverPort);
+        checkTcpTransportHandler();
+        doTcpListen(sa);
+    }
+
+    /**
+     * UDP only. Listen and accept connections on the address. Can be called multiple
+     * times for multiple server addresses.
+     * @param serverAddress
+     * @param serverPort
+     */
+    public void udpListen(String serverAddress, short serverPort) {
+        InetSocketAddress sa = new InetSocketAddress(serverAddress, serverPort);
+        checkUdpTransportHandler();
+        doUdpListen(sa);
+    }
+
+    @Override
+    protected void loopOnce() {
+        try {
+            selectOnce();
+        } catch (IOException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    protected void selectOnce() throws IOException {
+        if (selector.isOpen() && selector.select(2) > 0 && selector.isOpen()) {
+            Set<SelectionKey> selectionKeys = selector.selectedKeys();
+            Iterator<SelectionKey> iterator = selectionKeys.iterator();
+            while (iterator.hasNext()) {
+                SelectionKey selectionKey = iterator.next();
+                dealKey(selectionKey);
+                iterator.remove();
+            }
+            selectionKeys.clear();
+        }
+    }
+
+    private void checkTcpTransportHandler() {
+        if (tcpTransportHandler == null) {
+            if (streamingDecoder == null) {
+                throw new IllegalArgumentException("No streaming decoder set yet");
+            }
+            tcpTransportHandler = new TcpTransportHandler(streamingDecoder);
+            getDispatcher().register(tcpTransportHandler);
+        }
+    }
+
+    private void checkUdpTransportHandler() {
+        if (udpTransportHandler == null) {
+            udpTransportHandler = new UdpTransportHandler();
+            getDispatcher().register(udpTransportHandler);
+        }
+    }
+
+    private void dealKey(SelectionKey selectionKey) throws IOException {
+        if (selectionKey.isConnectable()) {
+            doTcpConnect(selectionKey);
+        } else if (selectionKey.isAcceptable()) {
+            doTcpAccept(selectionKey);
+        } else {
+            helpHandleSelectionKey(selectionKey);
+        }
+    }
+
+    private void helpHandleSelectionKey(SelectionKey selectionKey) throws IOException {
+        SelectableChannel channel = selectionKey.channel();
+        if (channel instanceof DatagramChannel) {
+            udpTransportHandler.helpHandleSelectionKey(selectionKey);
+        } else {
+            tcpTransportHandler.helpHandleSelectionKey(selectionKey);
+        }
+    }
+
+    private void doUdpConnect(InetSocketAddress sa) {
+        AddressEvent event = UdpAddressEvent.createAddressConnectEvent(sa);
+        dispatch(event);
+    }
+
+    private void doUdpConnect(AddressEvent event) throws IOException {
+        InetSocketAddress address = event.getAddress();
+        DatagramChannel channel = DatagramChannel.open();
+        channel.configureBlocking(false);
+        channel.connect(address);
+
+        channel.register(selector, SelectionKey.OP_READ | SelectionKey.OP_WRITE);
+
+        UdpTransport transport = new UdpTransport(channel, address);
+        onNewTransport(transport);
+    }
+
+    protected void doUdpListen(InetSocketAddress socketAddress) {
+        AddressEvent event = UdpAddressEvent.createAddressBindEvent(socketAddress);
+        dispatch(event);
+    }
+
+    private void doUdpBind(AddressEvent event) throws IOException {
+        DatagramChannel serverChannel = DatagramChannel.open();
+        serverChannel.configureBlocking(false);
+        serverChannel.bind(event.getAddress());
+        serverChannel.register(selector, SelectionKey.OP_READ);
+    }
+
+    protected void doTcpConnect(InetSocketAddress sa) {
+        AddressEvent event = TcpAddressEvent.createAddressConnectEvent(sa);
+        dispatch(event);
+    }
+
+    private void doTcpConnect(AddressEvent event) throws IOException {
+        SocketChannel channel = SocketChannel.open();
+        channel.configureBlocking(false);
+        channel.connect(event.getAddress());
+        channel.register(selector,
+                SelectionKey.OP_CONNECT | SelectionKey.OP_READ | SelectionKey.OP_WRITE);
+    }
+
+    private void doTcpConnect(SelectionKey key) throws IOException {
+        SocketChannel channel = (SocketChannel) key.channel();
+        if (channel.isConnectionPending()) {
+            channel.finishConnect();
+        }
+
+        Transport transport = new TcpTransport(channel, tcpTransportHandler.getStreamingDecoder());
+        channel.register(selector, SelectionKey.OP_READ | SelectionKey.OP_WRITE, transport);
+        onNewTransport(transport);
+    }
+
+    protected void doTcpListen(InetSocketAddress socketAddress) {
+        AddressEvent event = TcpAddressEvent.createAddressBindEvent(socketAddress);
+        dispatch(event);
+    }
+
+    void doTcpAccept(SelectionKey key) throws IOException {
+        ServerSocketChannel server = (ServerSocketChannel) key.channel();
+        SocketChannel channel;
+        while ((channel = server.accept()) != null) {
+            // Quick fix: avoid exception during exiting
+            if (! selector.isOpen()) {
+                channel.close();
+                break;
+            };
+
+            channel.configureBlocking(false);
+            channel.socket().setTcpNoDelay(true);
+            channel.socket().setKeepAlive(true);
+
+            Transport transport = new TcpTransport(channel,
+                    tcpTransportHandler.getStreamingDecoder());
+            channel.register(selector,
+                    SelectionKey.OP_READ | SelectionKey.OP_WRITE, transport);
+            onNewTransport(transport);
+        }
+    }
+
+    protected void doTcpBind(AddressEvent event) throws IOException {
+        ServerSocketChannel serverSocketChannel = ServerSocketChannel.open();
+        serverSocketChannel.configureBlocking(false);
+        ServerSocket serverSocket = serverSocketChannel.socket();
+        serverSocket.bind(event.getAddress());
+        serverSocketChannel.register(selector, SelectionKey.OP_ACCEPT, serverSocketChannel);
+    }
+
+    private void onNewTransport(Transport transport) {
+        transport.setDispatcher(getDispatcher());
+        dispatch(TransportEvent.createNewTransportEvent(transport));
+    }
+}

http://git-wip-us.apache.org/repos/asf/directory-kerberos/blob/5a980a4d/contrib/haox-event/src/main/java/org/apache/haox/transport/Transport.java
----------------------------------------------------------------------
diff --git a/contrib/haox-event/src/main/java/org/apache/haox/transport/Transport.java b/contrib/haox-event/src/main/java/org/apache/haox/transport/Transport.java
new file mode 100644
index 0000000..e32c8e9
--- /dev/null
+++ b/contrib/haox-event/src/main/java/org/apache/haox/transport/Transport.java
@@ -0,0 +1,65 @@
+package org.apache.haox.transport;
+
+import org.apache.haox.event.Dispatcher;
+import org.apache.haox.transport.buffer.TransBuffer;
+import org.apache.haox.transport.event.TransportEvent;
+
+import java.io.IOException;
+import java.net.InetSocketAddress;
+import java.nio.ByteBuffer;
+
+public abstract class Transport {
+    private InetSocketAddress remoteAddress;
+    protected Dispatcher dispatcher;
+    private Object attachment;
+
+    protected TransBuffer sendBuffer;
+
+    private int readableCount = 0;
+    private int writableCount = 0;
+
+    public Transport(InetSocketAddress remoteAddress) {
+        this.remoteAddress = remoteAddress;
+        this.sendBuffer = new TransBuffer();
+    }
+
+    public void setDispatcher(Dispatcher dispatcher) {
+        this.dispatcher = dispatcher;
+    }
+
+    public InetSocketAddress getRemoteAddress() {
+        return remoteAddress;
+    }
+
+    public void sendMessage(ByteBuffer message) {
+        if (message != null) {
+            sendBuffer.write(message);
+            dispatcher.dispatch(TransportEvent.createWritableTransportEvent(this));
+        }
+    }
+
+    public void onWriteable() throws IOException {
+        this.writableCount ++;
+
+        if (! sendBuffer.isEmpty()) {
+            ByteBuffer message = sendBuffer.read();
+            if (message != null) {
+                sendOutMessage(message);
+            }
+        }
+    }
+
+    public void onReadable() throws IOException {
+        this.readableCount++;
+    }
+
+    protected abstract void sendOutMessage(ByteBuffer message) throws IOException;
+
+    public void setAttachment(Object attachment) {
+        this.attachment = attachment;
+    }
+
+    public Object getAttachment() {
+        return attachment;
+    }
+}

http://git-wip-us.apache.org/repos/asf/directory-kerberos/blob/5a980a4d/contrib/haox-event/src/main/java/org/apache/haox/transport/TransportHandler.java
----------------------------------------------------------------------
diff --git a/contrib/haox-event/src/main/java/org/apache/haox/transport/TransportHandler.java b/contrib/haox-event/src/main/java/org/apache/haox/transport/TransportHandler.java
new file mode 100644
index 0000000..957360b
--- /dev/null
+++ b/contrib/haox-event/src/main/java/org/apache/haox/transport/TransportHandler.java
@@ -0,0 +1,15 @@
+package org.apache.haox.transport;
+
+import org.apache.haox.event.AbstractEventHandler;
+
+import java.io.IOException;
+import java.nio.channels.SelectionKey;
+
+/**
+ * Handling readable and writable events
+ */
+public abstract class TransportHandler extends AbstractEventHandler {
+
+    public abstract void helpHandleSelectionKey(SelectionKey selectionKey) throws IOException;
+
+}

http://git-wip-us.apache.org/repos/asf/directory-kerberos/blob/5a980a4d/contrib/haox-event/src/main/java/org/apache/haox/transport/TransportSelector.java
----------------------------------------------------------------------
diff --git a/contrib/haox-event/src/main/java/org/apache/haox/transport/TransportSelector.java b/contrib/haox-event/src/main/java/org/apache/haox/transport/TransportSelector.java
new file mode 100644
index 0000000..dbf1678
--- /dev/null
+++ b/contrib/haox-event/src/main/java/org/apache/haox/transport/TransportSelector.java
@@ -0,0 +1,81 @@
+package org.apache.haox.transport;
+
+import org.apache.haox.event.Dispatcher;
+import org.apache.haox.event.LongRunningEventHandler;
+import org.apache.haox.transport.event.TransportEvent;
+
+import java.io.IOException;
+import java.nio.channels.SelectionKey;
+import java.nio.channels.Selector;
+import java.util.Iterator;
+import java.util.Set;
+
+public abstract class TransportSelector extends LongRunningEventHandler {
+
+    protected Selector selector;
+    protected TransportHandler transportHandler;
+
+    public TransportSelector(TransportHandler transportHandler) {
+        super();
+        this.transportHandler = transportHandler;
+    }
+
+    @Override
+    public void setDispatcher(Dispatcher dispatcher) {
+        super.setDispatcher(dispatcher);
+        dispatcher.register(transportHandler);
+    }
+
+    @Override
+    public void init() {
+        super.init();
+
+        try {
+            selector = Selector.open();
+        } catch (IOException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    @Override
+    protected void loopOnce() {
+        try {
+            selectOnce();
+        } catch (IOException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    protected void selectOnce() throws IOException {
+        if (selector.isOpen() && selector.select(10) > 0 && selector.isOpen()) {
+            Set<SelectionKey> selectionKeys = selector.selectedKeys();
+            Iterator<SelectionKey> iterator = selectionKeys.iterator();
+            while (iterator.hasNext()) {
+                SelectionKey selectionKey = iterator.next();
+                dealKey(selectionKey);
+                iterator.remove();
+            }
+            selectionKeys.clear();
+        }
+    }
+
+    protected void dealKey(SelectionKey selectionKey) throws IOException {
+        transportHandler.helpHandleSelectionKey(selectionKey);
+    }
+
+    protected void onNewTransport(Transport transport) {
+        transport.setDispatcher(getDispatcher());
+        dispatch(TransportEvent.createNewTransportEvent(transport));
+    }
+
+    @Override
+    public void stop() {
+        super.stop();
+
+        try {
+            selector.close();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+}

http://git-wip-us.apache.org/repos/asf/directory-kerberos/blob/5a980a4d/contrib/haox-event/src/main/java/org/apache/haox/transport/buffer/BufferPool.java
----------------------------------------------------------------------
diff --git a/contrib/haox-event/src/main/java/org/apache/haox/transport/buffer/BufferPool.java b/contrib/haox-event/src/main/java/org/apache/haox/transport/buffer/BufferPool.java
new file mode 100644
index 0000000..b8169c2
--- /dev/null
+++ b/contrib/haox-event/src/main/java/org/apache/haox/transport/buffer/BufferPool.java
@@ -0,0 +1,14 @@
+package org.apache.haox.transport.buffer;
+
+import java.nio.ByteBuffer;
+
+public class BufferPool {
+
+    public static ByteBuffer allocate(int len) {
+        return ByteBuffer.allocate(len);
+    }
+
+    public static void release(ByteBuffer buffer) {
+
+    }
+}

http://git-wip-us.apache.org/repos/asf/directory-kerberos/blob/5a980a4d/contrib/haox-event/src/main/java/org/apache/haox/transport/buffer/BufferUtil.java
----------------------------------------------------------------------
diff --git a/contrib/haox-event/src/main/java/org/apache/haox/transport/buffer/BufferUtil.java b/contrib/haox-event/src/main/java/org/apache/haox/transport/buffer/BufferUtil.java
new file mode 100644
index 0000000..d9b9279
--- /dev/null
+++ b/contrib/haox-event/src/main/java/org/apache/haox/transport/buffer/BufferUtil.java
@@ -0,0 +1,23 @@
+package org.apache.haox.transport.buffer;
+
+import java.nio.BufferOverflowException;
+import java.nio.ByteBuffer;
+
+public class BufferUtil {
+
+    /**
+     * Read len bytes from src buffer
+     */
+    public static ByteBuffer read(ByteBuffer src, int len) {
+        if (len > src.remaining())
+            throw new BufferOverflowException();
+
+        ByteBuffer result = ByteBuffer.allocate(len);
+        int n = src.remaining();
+        for (int i = 0; i < n; i++) {
+            result.put(src.get());
+        }
+
+        return result;
+    }
+}

http://git-wip-us.apache.org/repos/asf/directory-kerberos/blob/5a980a4d/contrib/haox-event/src/main/java/org/apache/haox/transport/buffer/RecvBuffer.java
----------------------------------------------------------------------
diff --git a/contrib/haox-event/src/main/java/org/apache/haox/transport/buffer/RecvBuffer.java b/contrib/haox-event/src/main/java/org/apache/haox/transport/buffer/RecvBuffer.java
new file mode 100644
index 0000000..e12b9df
--- /dev/null
+++ b/contrib/haox-event/src/main/java/org/apache/haox/transport/buffer/RecvBuffer.java
@@ -0,0 +1,136 @@
+package org.apache.haox.transport.buffer;
+
+import java.nio.BufferOverflowException;
+import java.nio.ByteBuffer;
+import java.util.Iterator;
+import java.util.LinkedList;
+
+public class RecvBuffer {
+
+    private LinkedList<ByteBuffer> bufferQueue;
+
+    public RecvBuffer() {
+        bufferQueue = new LinkedList<ByteBuffer>();
+    }
+
+    public synchronized void write(ByteBuffer buffer) {
+        bufferQueue.addLast(buffer);
+    }
+
+    /**
+     * Put buffer as the first into the buffer queue
+     */
+    public synchronized void writeFirst(ByteBuffer buffer) {
+        bufferQueue.addFirst(buffer);
+    }
+
+    /**
+     * Read and return the first buffer if available
+     */
+    public synchronized ByteBuffer readFirst() {
+        if (! bufferQueue.isEmpty()) {
+            return bufferQueue.removeFirst();
+        }
+        return null;
+    }
+
+    /**
+     * Read most available bytes into the dst buffer
+     */
+    public synchronized ByteBuffer readMostBytes() {
+        int len = remaining();
+        return readBytes(len);
+    }
+
+    /**
+     * Read len bytes into the dst buffer if available
+     */
+    public synchronized ByteBuffer readBytes(int len) {
+        if (remaining() < len) { // no enough data that's available
+            throw new BufferOverflowException();
+        }
+
+        ByteBuffer result = null;
+
+        ByteBuffer takenBuffer;
+        if (bufferQueue.size() == 1) {
+            takenBuffer = bufferQueue.removeFirst();
+
+            if (takenBuffer.remaining() == len) {
+                return takenBuffer;
+            }
+
+            result = BufferPool.allocate(len);
+            for (int i = 0; i < len; i++) {
+                result.put(takenBuffer.get());
+            }
+            // Has left bytes so put it back for future reading
+            if (takenBuffer.remaining() > 0) {
+                bufferQueue.addFirst(takenBuffer);
+            }
+        } else {
+            result = BufferPool.allocate(len);
+
+            Iterator<ByteBuffer> iter = bufferQueue.iterator();
+            int alreadyGot = 0, toGet;
+            while (iter.hasNext()) {
+                takenBuffer = iter.next();
+                iter.remove();
+
+                toGet = takenBuffer.remaining() < len - alreadyGot ?
+                    takenBuffer.remaining() : len -alreadyGot;
+                byte[] toGetBytes = new byte[toGet];
+                takenBuffer.get(toGetBytes);
+                result.put(toGetBytes);
+
+                if (takenBuffer.remaining() > 0) {
+                    bufferQueue.addFirst(takenBuffer);
+                }
+
+                alreadyGot += toGet;
+                if (alreadyGot == len) {
+                    break;
+                }
+            }
+        }
+        result.flip();
+
+        return result;
+    }
+
+    public boolean isEmpty() {
+        return bufferQueue.isEmpty();
+    }
+
+    /**
+     * Return count of remaining and left bytes that's available
+     */
+    public int remaining() {
+        if (bufferQueue.isEmpty()) {
+            return 0;
+        } else if (bufferQueue.size() == 1) {
+            return bufferQueue.getFirst().remaining();
+        }
+
+        int result = 0;
+        Iterator<ByteBuffer> iter = bufferQueue.iterator();
+        while (iter.hasNext()) {
+            result += iter.next().remaining();
+        }
+        return result;
+    }
+
+    public synchronized void clear() {
+        if (bufferQueue.isEmpty()) {
+            return;
+        } else if (bufferQueue.size() == 1) {
+            BufferPool.release(bufferQueue.getFirst());
+        }
+
+        Iterator<ByteBuffer> iter = bufferQueue.iterator();
+        while (iter.hasNext()) {
+            BufferPool.release(iter.next());
+        }
+        bufferQueue.clear();
+    }
+}

http://git-wip-us.apache.org/repos/asf/directory-kerberos/blob/5a980a4d/contrib/haox-event/src/main/java/org/apache/haox/transport/buffer/TransBuffer.java
----------------------------------------------------------------------
diff --git a/contrib/haox-event/src/main/java/org/apache/haox/transport/buffer/TransBuffer.java b/contrib/haox-event/src/main/java/org/apache/haox/transport/buffer/TransBuffer.java
new file mode 100644
index 0000000..869fe59
--- /dev/null
+++ b/contrib/haox-event/src/main/java/org/apache/haox/transport/buffer/TransBuffer.java
@@ -0,0 +1,30 @@
+package org.apache.haox.transport.buffer;
+
+import java.nio.ByteBuffer;
+import java.util.concurrent.ArrayBlockingQueue;
+import java.util.concurrent.BlockingQueue;
+
+public class TransBuffer {
+
+    private BlockingQueue<ByteBuffer> bufferQueue;
+
+    public TransBuffer() {
+        bufferQueue = new ArrayBlockingQueue<ByteBuffer>(2);
+    }
+
+    public void write(ByteBuffer buffer) {
+        bufferQueue.add(buffer);
+    }
+
+    public void write(byte[] buffer) {
+        write(ByteBuffer.wrap(buffer));
+    }
+
+    public ByteBuffer read() {
+        return bufferQueue.poll();
+    }
+
+    public boolean isEmpty() {
+        return bufferQueue.isEmpty();
+    }
+}

http://git-wip-us.apache.org/repos/asf/directory-kerberos/blob/5a980a4d/contrib/haox-event/src/main/java/org/apache/haox/transport/event/AddressEvent.java
----------------------------------------------------------------------
diff --git a/contrib/haox-event/src/main/java/org/apache/haox/transport/event/AddressEvent.java b/contrib/haox-event/src/main/java/org/apache/haox/transport/event/AddressEvent.java
new file mode 100644
index 0000000..920b603
--- /dev/null
+++ b/contrib/haox-event/src/main/java/org/apache/haox/transport/event/AddressEvent.java
@@ -0,0 +1,20 @@
+package org.apache.haox.transport.event;
+
+import org.apache.haox.event.Event;
+import org.apache.haox.event.EventType;
+
+import java.net.InetSocketAddress;
+
+public class AddressEvent extends Event {
+
+    private InetSocketAddress address;
+
+    public AddressEvent(InetSocketAddress address, EventType eventType) {
+        super(eventType);
+        this.address = address;
+    }
+
+    public InetSocketAddress getAddress() {
+        return address;
+    }
+}

http://git-wip-us.apache.org/repos/asf/directory-kerberos/blob/5a980a4d/contrib/haox-event/src/main/java/org/apache/haox/transport/event/MessageEvent.java
----------------------------------------------------------------------
diff --git a/contrib/haox-event/src/main/java/org/apache/haox/transport/event/MessageEvent.java b/contrib/haox-event/src/main/java/org/apache/haox/transport/event/MessageEvent.java
new file mode 100644
index 0000000..736e4ba
--- /dev/null
+++ b/contrib/haox-event/src/main/java/org/apache/haox/transport/event/MessageEvent.java
@@ -0,0 +1,22 @@
+package org.apache.haox.transport.event;
+
+import org.apache.haox.transport.Transport;
+
+import java.nio.ByteBuffer;
+
+public class MessageEvent extends TransportEvent {
+
+    private MessageEvent(Transport transport, ByteBuffer message) {
+        super(transport, TransportEventType.INBOUND_MESSAGE, message);
+    }
+
+    public ByteBuffer getMessage() {
+        return (ByteBuffer) getEventData();
+    }
+
+    public static MessageEvent createInboundMessageEvent(
+            Transport transport, ByteBuffer message) {
+        return new MessageEvent(transport, message);
+    }
+
+}

http://git-wip-us.apache.org/repos/asf/directory-kerberos/blob/5a980a4d/contrib/haox-event/src/main/java/org/apache/haox/transport/event/TransportEvent.java
----------------------------------------------------------------------
diff --git a/contrib/haox-event/src/main/java/org/apache/haox/transport/event/TransportEvent.java b/contrib/haox-event/src/main/java/org/apache/haox/transport/event/TransportEvent.java
new file mode 100644
index 0000000..68882fb
--- /dev/null
+++ b/contrib/haox-event/src/main/java/org/apache/haox/transport/event/TransportEvent.java
@@ -0,0 +1,37 @@
+package org.apache.haox.transport.event;
+
+import org.apache.haox.event.Event;
+import org.apache.haox.event.EventType;
+import org.apache.haox.transport.Transport;
+
+public class TransportEvent extends Event {
+
+    private Transport transport;
+
+    public TransportEvent(Transport transport, EventType eventType) {
+        super(eventType);
+        this.transport = transport;
+    }
+
+    public TransportEvent(Transport transport, EventType eventType, Object eventData) {
+        super(eventType, eventData);
+        this.transport = transport;
+    }
+
+    public Transport getTransport() {
+        return transport;
+    }
+
+    public static TransportEvent createWritableTransportEvent(Transport transport) {
+        return new TransportEvent(transport, TransportEventType.TRANSPORT_WRITABLE);
+    }
+
+    public static TransportEvent createReadableTransportEvent(Transport transport) {
+        return new TransportEvent(transport, TransportEventType.TRANSPORT_READABLE);
+    }
+
+    public static TransportEvent createNewTransportEvent(Transport transport) {
+        return new TransportEvent(transport, TransportEventType.NEW_TRANSPORT);
+    }
+
+}

http://git-wip-us.apache.org/repos/asf/directory-kerberos/blob/5a980a4d/contrib/haox-event/src/main/java/org/apache/haox/transport/event/TransportEventType.java
----------------------------------------------------------------------
diff --git a/contrib/haox-event/src/main/java/org/apache/haox/transport/event/TransportEventType.java b/contrib/haox-event/src/main/java/org/apache/haox/transport/event/TransportEventType.java
new file mode 100644
index 0000000..457bf25
--- /dev/null
+++ b/contrib/haox-event/src/main/java/org/apache/haox/transport/event/TransportEventType.java
@@ -0,0 +1,10 @@
+package org.apache.haox.transport.event;
+
+import org.apache.haox.event.EventType;
+
+public enum TransportEventType implements EventType {
+    NEW_TRANSPORT,
+    TRANSPORT_WRITABLE,
+    TRANSPORT_READABLE,
+    INBOUND_MESSAGE
+}

http://git-wip-us.apache.org/repos/asf/directory-kerberos/blob/5a980a4d/contrib/haox-event/src/main/java/org/apache/haox/transport/tcp/DecodingCallback.java
----------------------------------------------------------------------
diff --git a/contrib/haox-event/src/main/java/org/apache/haox/transport/tcp/DecodingCallback.java b/contrib/haox-event/src/main/java/org/apache/haox/transport/tcp/DecodingCallback.java
new file mode 100644
index 0000000..b656159
--- /dev/null
+++ b/contrib/haox-event/src/main/java/org/apache/haox/transport/tcp/DecodingCallback.java
@@ -0,0 +1,19 @@
+package org.apache.haox.transport.tcp;
+
+public interface DecodingCallback {
+
+    /**
+     * OK, enough data is ready, a message can be out
+     */
+    public void onMessageComplete(int messageLength);
+
+    /**
+     * Need more data to be available
+     */
+    public void onMoreDataNeeded();
+
+    /**
+     * Need more data to be available, with determined more data length given
+     */
+    public void onMoreDataNeeded(int needDataLength);
+}

http://git-wip-us.apache.org/repos/asf/directory-kerberos/blob/5a980a4d/contrib/haox-event/src/main/java/org/apache/haox/transport/tcp/StreamingDecoder.java
----------------------------------------------------------------------
diff --git a/contrib/haox-event/src/main/java/org/apache/haox/transport/tcp/StreamingDecoder.java b/contrib/haox-event/src/main/java/org/apache/haox/transport/tcp/StreamingDecoder.java
new file mode 100644
index 0000000..2a90b94
--- /dev/null
+++ b/contrib/haox-event/src/main/java/org/apache/haox/transport/tcp/StreamingDecoder.java
@@ -0,0 +1,7 @@
+package org.apache.haox.transport.tcp;
+
+import java.nio.ByteBuffer;
+
+public interface StreamingDecoder {
+    public void decode(ByteBuffer streamingBuffer, DecodingCallback callback);
+}

http://git-wip-us.apache.org/repos/asf/directory-kerberos/blob/5a980a4d/contrib/haox-event/src/main/java/org/apache/haox/transport/tcp/TcpAcceptor.java
----------------------------------------------------------------------
diff --git a/contrib/haox-event/src/main/java/org/apache/haox/transport/tcp/TcpAcceptor.java b/contrib/haox-event/src/main/java/org/apache/haox/transport/tcp/TcpAcceptor.java
new file mode 100644
index 0000000..011f67b
--- /dev/null
+++ b/contrib/haox-event/src/main/java/org/apache/haox/transport/tcp/TcpAcceptor.java
@@ -0,0 +1,92 @@
+package org.apache.haox.transport.tcp;
+
+import org.apache.haox.event.AbstractEventHandler;
+import org.apache.haox.event.Event;
+import org.apache.haox.event.EventType;
+import org.apache.haox.transport.Acceptor;
+import org.apache.haox.transport.Transport;
+import org.apache.haox.transport.event.AddressEvent;
+
+import java.io.IOException;
+import java.net.InetSocketAddress;
+import java.net.ServerSocket;
+import java.nio.channels.SelectionKey;
+import java.nio.channels.ServerSocketChannel;
+import java.nio.channels.SocketChannel;
+
+public class TcpAcceptor extends Acceptor {
+
+    public TcpAcceptor(StreamingDecoder streamingDecoder) {
+        this(new TcpTransportHandler(streamingDecoder));
+    }
+
+    public TcpAcceptor(TcpTransportHandler transportHandler) {
+        super(transportHandler);
+
+        setEventHandler(new AbstractEventHandler() {
+            @Override
+            protected void doHandle(Event event) throws Exception {
+                if (event.getEventType() == TcpEventType.ADDRESS_BIND) {
+                    try {
+                        doBind((AddressEvent) event);
+                    } catch (IOException e) {
+                        throw new RuntimeException(e);
+                    }
+                }
+            }
+
+            @Override
+            public EventType[] getInterestedEvents() {
+                return new EventType[] {
+                        TcpEventType.ADDRESS_BIND
+                };
+            }
+        });
+    }
+
+    @Override
+    protected void doListen(InetSocketAddress socketAddress) {
+        AddressEvent event = TcpAddressEvent.createAddressBindEvent(socketAddress);
+        dispatch(event);
+    }
+
+    @Override
+    protected void dealKey(SelectionKey selectionKey) throws IOException {
+        if (selectionKey.isAcceptable()) {
+            doAccept(selectionKey);
+        } else {
+            super.dealKey(selectionKey);
+        }
+    }
+
+    void doAccept(SelectionKey key) throws IOException {
+        ServerSocketChannel server = (ServerSocketChannel) key.channel();
+        SocketChannel channel;
+        while ((channel = server.accept()) != null) {
+            // Quick fix: avoid exception during exiting
+            if (! selector.isOpen()) {
+                channel.close();
+                break;
+            };
+
+            channel.configureBlocking(false);
+            channel.socket().setTcpNoDelay(true);
+            channel.socket().setKeepAlive(true);
+
+            Transport transport = new TcpTransport(channel,
+                    ((TcpTransportHandler) transportHandler).getStreamingDecoder());
+            channel.register(selector,
+                    SelectionKey.OP_READ | SelectionKey.OP_WRITE, transport);
+            onNewTransport(transport);
+        }
+    }
+
+    protected void doBind(AddressEvent event) throws IOException {
+        ServerSocketChannel serverSocketChannel = ServerSocketChannel.open();
+        serverSocketChannel.configureBlocking(false);
+        ServerSocket serverSocket = serverSocketChannel.socket();
+        serverSocket.bind(event.getAddress());
+        serverSocketChannel.register(selector, SelectionKey.OP_ACCEPT, serverSocketChannel);
+    }
+
+}

http://git-wip-us.apache.org/repos/asf/directory-kerberos/blob/5a980a4d/contrib/haox-event/src/main/java/org/apache/haox/transport/tcp/TcpAddressEvent.java
----------------------------------------------------------------------
diff --git a/contrib/haox-event/src/main/java/org/apache/haox/transport/tcp/TcpAddressEvent.java b/contrib/haox-event/src/main/java/org/apache/haox/transport/tcp/TcpAddressEvent.java
new file mode 100644
index 0000000..23f3d31
--- /dev/null
+++ b/contrib/haox-event/src/main/java/org/apache/haox/transport/tcp/TcpAddressEvent.java
@@ -0,0 +1,17 @@
+package org.apache.haox.transport.tcp;
+
+import org.apache.haox.transport.event.AddressEvent;
+
+import java.net.InetSocketAddress;
+
+public class TcpAddressEvent {
+
+    public static AddressEvent createAddressBindEvent(InetSocketAddress address) {
+        return new AddressEvent(address, TcpEventType.ADDRESS_BIND);
+    }
+
+    public static AddressEvent createAddressConnectEvent(InetSocketAddress address) {
+        return new AddressEvent(address, TcpEventType.ADDRESS_CONNECT);
+    }
+
+}

http://git-wip-us.apache.org/repos/asf/directory-kerberos/blob/5a980a4d/contrib/haox-event/src/main/java/org/apache/haox/transport/tcp/TcpConnector.java
----------------------------------------------------------------------
diff --git a/contrib/haox-event/src/main/java/org/apache/haox/transport/tcp/TcpConnector.java b/contrib/haox-event/src/main/java/org/apache/haox/transport/tcp/TcpConnector.java
new file mode 100644
index 0000000..13a0713
--- /dev/null
+++ b/contrib/haox-event/src/main/java/org/apache/haox/transport/tcp/TcpConnector.java
@@ -0,0 +1,75 @@
+package org.apache.haox.transport.tcp;
+
+import org.apache.haox.event.AbstractEventHandler;
+import org.apache.haox.event.Event;
+import org.apache.haox.event.EventType;
+import org.apache.haox.transport.Connector;
+import org.apache.haox.transport.Transport;
+import org.apache.haox.transport.event.AddressEvent;
+
+import java.io.IOException;
+import java.net.InetSocketAddress;
+import java.nio.channels.SelectionKey;
+import java.nio.channels.SocketChannel;
+
+public class TcpConnector extends Connector {
+
+    public TcpConnector(StreamingDecoder streamingDecoder) {
+        this(new TcpTransportHandler(streamingDecoder));
+    }
+
+    public TcpConnector(TcpTransportHandler transportHandler) {
+        super(transportHandler);
+
+        setEventHandler(new AbstractEventHandler() {
+            @Override
+            protected void doHandle(Event event) throws Exception {
+                if (event.getEventType() ==  TcpEventType.ADDRESS_CONNECT) {
+                    doConnect((AddressEvent) event);
+                }
+            }
+
+            @Override
+            public EventType[] getInterestedEvents() {
+                return new EventType[] {
+                        TcpEventType.ADDRESS_CONNECT
+                };
+            }
+        });
+    }
+
+    @Override
+    protected void doConnect(InetSocketAddress sa) {
+        AddressEvent event = TcpAddressEvent.createAddressConnectEvent(sa);
+        dispatch(event);
+    }
+
+    private void doConnect(AddressEvent event) throws IOException {
+        SocketChannel channel = SocketChannel.open();
+        channel.configureBlocking(false);
+        channel.connect(event.getAddress());
+        channel.register(selector,
+                SelectionKey.OP_CONNECT | SelectionKey.OP_READ | SelectionKey.OP_WRITE);
+    }
+
+    @Override
+    protected void dealKey(SelectionKey selectionKey) throws IOException {
+        if (selectionKey.isConnectable()) {
+            doConnect(selectionKey);
+        } else {
+            super.dealKey(selectionKey);
+        }
+    }
+
+    void doConnect(SelectionKey key) throws IOException {
+        SocketChannel channel = (SocketChannel) key.channel();
+        if (channel.isConnectionPending()) {
+            channel.finishConnect();
+        }
+
+        Transport transport = new TcpTransport(channel,
+                ((TcpTransportHandler) transportHandler).getStreamingDecoder());
+        channel.register(selector, SelectionKey.OP_READ | SelectionKey.OP_WRITE, transport);
+        onNewTransport(transport);
+    }
+}

http://git-wip-us.apache.org/repos/asf/directory-kerberos/blob/5a980a4d/contrib/haox-event/src/main/java/org/apache/haox/transport/tcp/TcpEventType.java
----------------------------------------------------------------------
diff --git a/contrib/haox-event/src/main/java/org/apache/haox/transport/tcp/TcpEventType.java b/contrib/haox-event/src/main/java/org/apache/haox/transport/tcp/TcpEventType.java
new file mode 100644
index 0000000..2710ddb
--- /dev/null
+++ b/contrib/haox-event/src/main/java/org/apache/haox/transport/tcp/TcpEventType.java
@@ -0,0 +1,8 @@
+package org.apache.haox.transport.tcp;
+
+import org.apache.haox.event.EventType;
+
+public enum TcpEventType implements EventType {
+    ADDRESS_BIND,
+    ADDRESS_CONNECT
+}

http://git-wip-us.apache.org/repos/asf/directory-kerberos/blob/5a980a4d/contrib/haox-event/src/main/java/org/apache/haox/transport/tcp/TcpTransport.java
----------------------------------------------------------------------
diff --git a/contrib/haox-event/src/main/java/org/apache/haox/transport/tcp/TcpTransport.java b/contrib/haox-event/src/main/java/org/apache/haox/transport/tcp/TcpTransport.java
new file mode 100644
index 0000000..03ec89c
--- /dev/null
+++ b/contrib/haox-event/src/main/java/org/apache/haox/transport/tcp/TcpTransport.java
@@ -0,0 +1,91 @@
+package org.apache.haox.transport.tcp;
+
+import org.apache.haox.transport.Transport;
+import org.apache.haox.transport.buffer.BufferPool;
+import org.apache.haox.transport.buffer.RecvBuffer;
+import org.apache.haox.transport.event.MessageEvent;
+
+import java.io.IOException;
+import java.net.InetSocketAddress;
+import java.nio.ByteBuffer;
+import java.nio.channels.SocketChannel;
+
+public class TcpTransport extends Transport {
+
+    private SocketChannel channel;
+
+    private StreamingDecoder streamingDecoder;
+
+    private RecvBuffer recvBuffer;
+
+    public TcpTransport(SocketChannel channel,
+                        StreamingDecoder streamingDecoder) throws IOException {
+        super((InetSocketAddress) channel.getRemoteAddress());
+        this.channel = channel;
+        this.streamingDecoder = streamingDecoder;
+
+        this.recvBuffer = new RecvBuffer();
+    }
+
+    @Override
+    protected void sendOutMessage(ByteBuffer message) throws IOException {
+        channel.write(message);
+    }
+
+    public void onReadable() throws IOException {
+        ByteBuffer writeBuffer = BufferPool.allocate(65536);
+        if (channel.read(writeBuffer) <= 0) {
+            BufferPool.release(writeBuffer);
+            return;
+        }
+
+        writeBuffer.flip();
+        recvBuffer.write(writeBuffer);
+
+        WithReadDataHander rdHandler = new WithReadDataHander();
+        rdHandler.handle();
+    }
+
+    class WithReadDataHander implements DecodingCallback {
+        private ByteBuffer streamingBuffer;
+
+        @Override
+        public void onMessageComplete(int messageLength) {
+            ByteBuffer message = null;
+
+            int remaining = streamingBuffer.remaining();
+            if (remaining == messageLength) {
+                message = streamingBuffer;
+            } else if (remaining > messageLength) {
+                message = streamingBuffer.duplicate();
+                int newLimit = streamingBuffer.position() + messageLength;
+                message.limit(newLimit);
+
+                streamingBuffer.position(newLimit);
+                recvBuffer.writeFirst(streamingBuffer);
+            }
+
+            if (message != null) {
+                dispatcher.dispatch(MessageEvent.createInboundMessageEvent(TcpTransport.this, message));
+            }
+        }
+
+        @Override
+        public void onMoreDataNeeded() {
+            recvBuffer.writeFirst(streamingBuffer);
+        }
+
+        @Override
+        public void onMoreDataNeeded(int needDataLength) {
+            recvBuffer.writeFirst(streamingBuffer);
+        }
+
+        public void handle() {
+            if (recvBuffer.isEmpty()) return;
+
+            streamingBuffer = recvBuffer.readMostBytes();
+
+            streamingDecoder.decode(streamingBuffer.duplicate(), this);
+        }
+    }
+}

http://git-wip-us.apache.org/repos/asf/directory-kerberos/blob/5a980a4d/contrib/haox-event/src/main/java/org/apache/haox/transport/tcp/TcpTransportHandler.java
----------------------------------------------------------------------
diff --git a/contrib/haox-event/src/main/java/org/apache/haox/transport/tcp/TcpTransportHandler.java b/contrib/haox-event/src/main/java/org/apache/haox/transport/tcp/TcpTransportHandler.java
new file mode 100644
index 0000000..b8728b1
--- /dev/null
+++ b/contrib/haox-event/src/main/java/org/apache/haox/transport/tcp/TcpTransportHandler.java
@@ -0,0 +1,58 @@
+package org.apache.haox.transport.tcp;
+
+import org.apache.haox.event.Event;
+import org.apache.haox.event.EventType;
+import org.apache.haox.transport.Transport;
+import org.apache.haox.transport.event.TransportEventType;
+import org.apache.haox.transport.TransportHandler;
+import org.apache.haox.transport.event.TransportEvent;
+
+import java.io.IOException;
+import java.nio.channels.SelectionKey;
+
+public class TcpTransportHandler extends TransportHandler {
+
+    private StreamingDecoder streamingDecoder;
+
+    public TcpTransportHandler(StreamingDecoder streamingDecoder) {
+        this.streamingDecoder = streamingDecoder;
+    }
+
+    public StreamingDecoder getStreamingDecoder() {
+        return streamingDecoder;
+    }
+
+    @Override
+    public EventType[] getInterestedEvents() {
+        return new TransportEventType[] {
+                TransportEventType.TRANSPORT_READABLE,
+                TransportEventType.TRANSPORT_WRITABLE
+        };
+    }
+
+    @Override
+    protected void doHandle(Event event) throws Exception {
+        EventType eventType = event.getEventType();
+        TransportEvent te = (TransportEvent) event;
+        Transport transport = te.getTransport();
+        if (eventType == TransportEventType.TRANSPORT_READABLE) {
+            transport.onReadable();
+        } else if (eventType == TransportEventType.TRANSPORT_WRITABLE) {
+            transport.onWriteable();
+        }
+    }
+
+    @Override
+    public void helpHandleSelectionKey(SelectionKey selectionKey) throws IOException {
+        if (selectionKey.isReadable()) {
+            selectionKey.interestOps(SelectionKey.OP_READ | SelectionKey.OP_WRITE);
+            TcpTransport transport = (TcpTransport) selectionKey.attachment();
+            dispatch(TransportEvent.createReadableTransportEvent(transport));
+        } else if (selectionKey.isWritable()) {
+            selectionKey.interestOps(SelectionKey.OP_READ);
+            TcpTransport transport = (TcpTransport) selectionKey.attachment();
+            dispatch(TransportEvent.createWritableTransportEvent(transport));
+        }
+    }
+}
+

http://git-wip-us.apache.org/repos/asf/directory-kerberos/blob/5a980a4d/contrib/haox-event/src/main/java/org/apache/haox/transport/udp/UdpAcceptor.java
----------------------------------------------------------------------
diff --git a/contrib/haox-event/src/main/java/org/apache/haox/transport/udp/UdpAcceptor.java b/contrib/haox-event/src/main/java/org/apache/haox/transport/udp/UdpAcceptor.java
new file mode 100644
index 0000000..e666edb
--- /dev/null
+++ b/contrib/haox-event/src/main/java/org/apache/haox/transport/udp/UdpAcceptor.java
@@ -0,0 +1,65 @@
+package org.apache.haox.transport.udp;
+
+import org.apache.haox.event.AbstractEventHandler;
+import org.apache.haox.event.Event;
+import org.apache.haox.event.EventType;
+import org.apache.haox.transport.Acceptor;
+import org.apache.haox.transport.event.AddressEvent;
+
+import java.io.IOException;
+import java.net.InetSocketAddress;
+import java.nio.channels.DatagramChannel;
+import java.nio.channels.SelectionKey;
+
+public class UdpAcceptor extends Acceptor {
+
+    private DatagramChannel serverChannel;
+
+    public UdpAcceptor() {
+        this(new UdpTransportHandler());
+    }
+
+    public UdpAcceptor(UdpTransportHandler udpTransportHandler) {
+        super(udpTransportHandler);
+
+        setEventHandler(new AbstractEventHandler() {
+            @Override
+            protected void doHandle(Event event) throws Exception {
+                if (event.getEventType() ==  UdpEventType.ADDRESS_BIND) {
+                    doBind((AddressEvent) event);
+                }
+            }
+
+            @Override
+            public EventType[] getInterestedEvents() {
+                return new EventType[] {
+                        UdpEventType.ADDRESS_BIND
+                };
+            }
+        });
+    }
+
+    @Override
+    protected void doListen(InetSocketAddress socketAddress) {
+        AddressEvent event = UdpAddressEvent.createAddressBindEvent(socketAddress);
+        dispatch(event);
+    }
+
+    private void doBind(AddressEvent event) throws IOException {
+        serverChannel = DatagramChannel.open();
+        serverChannel.configureBlocking(false);
+        serverChannel.bind(event.getAddress());
+        serverChannel.register(selector, SelectionKey.OP_READ);
+    }
+
+    @Override
+    public void stop() {
+        super.stop();
+
+        try {
+            serverChannel.close();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+}

http://git-wip-us.apache.org/repos/asf/directory-kerberos/blob/5a980a4d/contrib/haox-event/src/main/java/org/apache/haox/transport/udp/UdpAddressEvent.java
----------------------------------------------------------------------
diff --git a/contrib/haox-event/src/main/java/org/apache/haox/transport/udp/UdpAddressEvent.java b/contrib/haox-event/src/main/java/org/apache/haox/transport/udp/UdpAddressEvent.java
new file mode 100644
index 0000000..83459f5
--- /dev/null
+++ b/contrib/haox-event/src/main/java/org/apache/haox/transport/udp/UdpAddressEvent.java
@@ -0,0 +1,17 @@
+package org.apache.haox.transport.udp;
+
+import org.apache.haox.transport.event.AddressEvent;
+
+import java.net.InetSocketAddress;
+
+public class UdpAddressEvent {
+
+    public static AddressEvent createAddressBindEvent(InetSocketAddress address) {
+        return new AddressEvent(address, UdpEventType.ADDRESS_BIND);
+    }
+
+    public static AddressEvent createAddressConnectEvent(InetSocketAddress address) {
+        return new AddressEvent(address, UdpEventType.ADDRESS_CONNECT);
+    }
+
+}

http://git-wip-us.apache.org/repos/asf/directory-kerberos/blob/5a980a4d/contrib/haox-event/src/main/java/org/apache/haox/transport/udp/UdpChannelEvent.java
----------------------------------------------------------------------
diff --git a/contrib/haox-event/src/main/java/org/apache/haox/transport/udp/UdpChannelEvent.java b/contrib/haox-event/src/main/java/org/apache/haox/transport/udp/UdpChannelEvent.java
new file mode 100644
index 0000000..ace00d6
--- /dev/null
+++ b/contrib/haox-event/src/main/java/org/apache/haox/transport/udp/UdpChannelEvent.java
@@ -0,0 +1,28 @@
+package org.apache.haox.transport.udp;
+
+import org.apache.haox.event.Event;
+import org.apache.haox.event.EventType;
+
+import java.nio.channels.DatagramChannel;
+
+public class UdpChannelEvent extends Event {
+
+    private DatagramChannel channel;
+
+    private UdpChannelEvent(DatagramChannel channel, EventType eventType) {
+        super(eventType);
+        this.channel = channel;
+    }
+
+    public DatagramChannel getChannel() {
+        return channel;
+    }
+
+    public static UdpChannelEvent makeWritableChannelEvent(DatagramChannel channel) {
+        return new UdpChannelEvent(channel, UdpEventType.CHANNEL_WRITABLE);
+    }
+
+    public static UdpChannelEvent makeReadableChannelEvent(DatagramChannel channel) {
+        return new UdpChannelEvent(channel, UdpEventType.CHANNEL_READABLE);
+    }
+}

http://git-wip-us.apache.org/repos/asf/directory-kerberos/blob/5a980a4d/contrib/haox-event/src/main/java/org/apache/haox/transport/udp/UdpConnector.java
----------------------------------------------------------------------
diff --git a/contrib/haox-event/src/main/java/org/apache/haox/transport/udp/UdpConnector.java b/contrib/haox-event/src/main/java/org/apache/haox/transport/udp/UdpConnector.java
new file mode 100644
index 0000000..c3419a9
--- /dev/null
+++ b/contrib/haox-event/src/main/java/org/apache/haox/transport/udp/UdpConnector.java
@@ -0,0 +1,57 @@
+package org.apache.haox.transport.udp;
+
+import org.apache.haox.event.AbstractEventHandler;
+import org.apache.haox.event.Event;
+import org.apache.haox.event.EventType;
+import org.apache.haox.transport.Connector;
+import org.apache.haox.transport.event.AddressEvent;
+
+import java.io.IOException;
+import java.net.InetSocketAddress;
+import java.nio.channels.DatagramChannel;
+import java.nio.channels.SelectionKey;
+
+public class UdpConnector extends Connector {
+
+    public UdpConnector() {
+        this(new UdpTransportHandler());
+    }
+
+    public UdpConnector(UdpTransportHandler transportHandler) {
+        super(transportHandler);
+
+        setEventHandler(new AbstractEventHandler() {
+            @Override
+            protected void doHandle(Event event) throws Exception {
+                if (event.getEventType() == UdpEventType.ADDRESS_CONNECT) {
+                    doConnect((AddressEvent) event);
+                }
+            }
+
+            @Override
+            public EventType[] getInterestedEvents() {
+                return new EventType[] {
+                        UdpEventType.ADDRESS_CONNECT
+                };
+            }
+        });
+    }
+
+    @Override
+    protected void doConnect(InetSocketAddress sa) {
+        AddressEvent event = UdpAddressEvent.createAddressConnectEvent(sa);
+        dispatch(event);
+    }
+
+    private void doConnect(AddressEvent event) throws IOException {
+        InetSocketAddress address = event.getAddress();
+        DatagramChannel channel = DatagramChannel.open();
+        channel.configureBlocking(false);
+        channel.connect(address);
+
+        channel.register(selector, SelectionKey.OP_READ | SelectionKey.OP_WRITE);
+
+        UdpTransport transport = new UdpTransport(channel, address);
+        onNewTransport(transport);
+    }
+}

http://git-wip-us.apache.org/repos/asf/directory-kerberos/blob/5a980a4d/contrib/haox-event/src/main/java/org/apache/haox/transport/udp/UdpEventType.java
----------------------------------------------------------------------
diff --git a/contrib/haox-event/src/main/java/org/apache/haox/transport/udp/UdpEventType.java b/contrib/haox-event/src/main/java/org/apache/haox/transport/udp/UdpEventType.java
new file mode 100644
index 0000000..c8f07b2
--- /dev/null
+++ b/contrib/haox-event/src/main/java/org/apache/haox/transport/udp/UdpEventType.java
@@ -0,0 +1,10 @@
+package org.apache.haox.transport.udp;
+
+import org.apache.haox.event.EventType;
+
+public enum UdpEventType implements EventType {
+    ADDRESS_BIND,
+    ADDRESS_CONNECT,
+    CHANNEL_WRITABLE,
+    CHANNEL_READABLE
+}

http://git-wip-us.apache.org/repos/asf/directory-kerberos/blob/5a980a4d/contrib/haox-event/src/main/java/org/apache/haox/transport/udp/UdpTransport.java
----------------------------------------------------------------------
diff --git a/contrib/haox-event/src/main/java/org/apache/haox/transport/udp/UdpTransport.java b/contrib/haox-event/src/main/java/org/apache/haox/transport/udp/UdpTransport.java
new file mode 100644
index 0000000..78007a4
--- /dev/null
+++ b/contrib/haox-event/src/main/java/org/apache/haox/transport/udp/UdpTransport.java
@@ -0,0 +1,46 @@
+package org.apache.haox.transport.udp;
+
+import org.apache.haox.transport.Transport;
+import org.apache.haox.transport.buffer.TransBuffer;
+import org.apache.haox.transport.event.MessageEvent;
+import org.apache.haox.transport.event.TransportEvent;
+
+import java.io.IOException;
+import java.net.InetSocketAddress;
+import java.nio.ByteBuffer;
+import java.nio.channels.DatagramChannel;
+
+public class UdpTransport extends Transport {
+    private DatagramChannel channel;
+
+    protected TransBuffer recvBuffer;
+
+    public UdpTransport(DatagramChannel channel,
+                        InetSocketAddress remoteAddress) {
+        super(remoteAddress);
+        this.channel = channel;
+        this.recvBuffer = new TransBuffer();
+    }
+
+    protected void onRecvData(ByteBuffer data) {
+        if (data != null) {
+            recvBuffer.write(data);
+            dispatcher.dispatch(TransportEvent.createReadableTransportEvent(this));
+        }
+    }
+
+    @Override
+    public void onReadable() throws IOException {
+        super.onReadable();
+
+        if (! recvBuffer.isEmpty()) {
+            ByteBuffer message = recvBuffer.read();
+            dispatcher.dispatch(MessageEvent.createInboundMessageEvent(this, message));
+        }
+    }
+
+    @Override
+    protected void sendOutMessage(ByteBuffer message) throws IOException {
+        channel.send(message, getRemoteAddress());
+    }
+}

http://git-wip-us.apache.org/repos/asf/directory-kerberos/blob/5a980a4d/contrib/haox-event/src/main/java/org/apache/haox/transport/udp/UdpTransportHandler.java
----------------------------------------------------------------------
diff --git a/contrib/haox-event/src/main/java/org/apache/haox/transport/udp/UdpTransportHandler.java b/contrib/haox-event/src/main/java/org/apache/haox/transport/udp/UdpTransportHandler.java
new file mode 100644
index 0000000..1c296ab
--- /dev/null
+++ b/contrib/haox-event/src/main/java/org/apache/haox/transport/udp/UdpTransportHandler.java
@@ -0,0 +1,90 @@
+package org.apache.haox.transport.udp;
+
+import org.apache.haox.event.Event;
+import org.apache.haox.event.EventType;
+import org.apache.haox.transport.Transport;
+import org.apache.haox.transport.TransportHandler;
+import org.apache.haox.transport.event.TransportEvent;
+import org.apache.haox.transport.event.TransportEventType;
+
+import java.io.IOException;
+import java.net.InetSocketAddress;
+import java.nio.ByteBuffer;
+import java.nio.channels.DatagramChannel;
+import java.nio.channels.SelectionKey;
+import java.util.HashMap;
+import java.util.Map;
+
+public class UdpTransportHandler extends TransportHandler {
+
+    protected Map<InetSocketAddress, UdpTransport> transports =
+            new HashMap<InetSocketAddress, UdpTransport>();
+
+    @Override
+    public EventType[] getInterestedEvents() {
+        return new EventType[] {
+                UdpEventType.CHANNEL_READABLE,
+                TransportEventType.TRANSPORT_WRITABLE,
+                TransportEventType.TRANSPORT_READABLE,
+                TransportEventType.NEW_TRANSPORT
+        };
+    }
+
+    @Override
+    protected void doHandle(Event event) throws Exception {
+        EventType eventType = event.getEventType();
+        if (eventType == UdpEventType.CHANNEL_READABLE) {
+            UdpChannelEvent ce = (UdpChannelEvent) event;
+            DatagramChannel channel = ce.getChannel();
+            doRead(channel);
+        } else if (eventType == TransportEventType.TRANSPORT_READABLE) {
+            TransportEvent te = (TransportEvent) event;
+            Transport transport = te.getTransport();
+            transport.onReadable();
+        } else if (eventType == TransportEventType.TRANSPORT_WRITABLE) {
+            TransportEvent te = (TransportEvent) event;
+            Transport transport = te.getTransport();
+            transport.onWriteable();
+        }  else if (eventType == TransportEventType.NEW_TRANSPORT) {
+            TransportEvent te = (TransportEvent) event;
+            Transport transport = te.getTransport();
+            if (transport instanceof UdpTransport) {
+                InetSocketAddress remoteAddress = transport.getRemoteAddress();
+                if (! transports.containsKey(remoteAddress)) {
+                    transports.put(remoteAddress, (UdpTransport) transport);
+                }
+            }
+        }
+    }
+
+    private void doRead(DatagramChannel channel) throws IOException {
+        ByteBuffer recvBuffer = ByteBuffer.allocate(65536); // to optimize
+        InetSocketAddress fromAddress = (InetSocketAddress) channel.receive(recvBuffer);
+        if (fromAddress != null) {
+            recvBuffer.flip();
+            UdpTransport transport = transports.get(fromAddress);
+            if (transport == null) {
+                // should be from acceptor
+                transport = new UdpTransport(channel, fromAddress);
+                transport.setDispatcher(getDispatcher());
+                dispatch(TransportEvent.createNewTransportEvent(transport));
+            }
+            transport.onRecvData(recvBuffer);
+        }
+    }
+
+    @Override
+    public void helpHandleSelectionKey(SelectionKey selectionKey) throws IOException {
+        DatagramChannel channel =
+                (DatagramChannel) selectionKey.channel();
+
+        if (selectionKey.isReadable()) {
+            dispatch(UdpChannelEvent.makeReadableChannelEvent(channel));
+        } else if (selectionKey.isWritable()) {
+            dispatch(UdpChannelEvent.makeWritableChannelEvent(channel));
+        }
+        // Udp channel is always writable, so not usable
+        selectionKey.interestOps(SelectionKey.OP_READ);
+    }
+}
+

http://git-wip-us.apache.org/repos/asf/directory-kerberos/blob/5a980a4d/contrib/haox-event/src/main/java/org/haox/event/AbstractEventHandler.java
----------------------------------------------------------------------
diff --git a/contrib/haox-event/src/main/java/org/haox/event/AbstractEventHandler.java b/contrib/haox-event/src/main/java/org/haox/event/AbstractEventHandler.java
deleted file mode 100644
index 2a63d30..0000000
--- a/contrib/haox-event/src/main/java/org/haox/event/AbstractEventHandler.java
+++ /dev/null
@@ -1,36 +0,0 @@
-package org.haox.event;
-
-public abstract class AbstractEventHandler implements EventHandler {
-
-    private Dispatcher dispatcher;
-
-    public AbstractEventHandler() {
-
-    }
-
-    protected void dispatch(Event event) {
-        dispatcher.dispatch(event);
-    }
-
-    @Override
-    public Dispatcher getDispatcher() {
-        return dispatcher;
-    }
-
-    @Override
-    public void setDispatcher(Dispatcher dispatcher) {
-        this.dispatcher = dispatcher;
-    }
-
-    @Override
-    public void handle(Event event) {
-        try {
-            doHandle(event);
-        } catch (Exception e) {
-            throw new RuntimeException(e);
-        }
-    }
-
-    protected abstract void doHandle(Event event) throws Exception;
-}
-

http://git-wip-us.apache.org/repos/asf/directory-kerberos/blob/5a980a4d/contrib/haox-event/src/main/java/org/haox/event/AbstractInternalEventHandler.java
----------------------------------------------------------------------
diff --git a/contrib/haox-event/src/main/java/org/haox/event/AbstractInternalEventHandler.java b/contrib/haox-event/src/main/java/org/haox/event/AbstractInternalEventHandler.java
deleted file mode 100644
index 8f3d7cc..0000000
--- a/contrib/haox-event/src/main/java/org/haox/event/AbstractInternalEventHandler.java
+++ /dev/null
@@ -1,47 +0,0 @@
-package org.haox.event;
-
-import java.util.concurrent.atomic.AtomicInteger;
-
-public abstract class AbstractInternalEventHandler extends AbstractEventHandler
-        implements InternalEventHandler {
-
-    private int id = -1;
-    protected EventHandler handler;
-
-    private static AtomicInteger idGen = new AtomicInteger(1);
-
-    public AbstractInternalEventHandler() {
-        super();
-
-        this.id = idGen.getAndIncrement();
-
-        init();
-    }
-
-    public AbstractInternalEventHandler(EventHandler handler) {
-        this();
-
-        this.handler = handler;
-    }
-
-    protected void setEventHandler(EventHandler handler) {
-        this.handler = handler;
-    }
-
-    @Override
-    public int id() {
-        return id;
-    }
-
-    public abstract void init();
-
-    protected void process(Event event) {
-        handler.handle(event);
-    }
-
-    @Override
-    public EventType[] getInterestedEvents() {
-        return handler.getInterestedEvents();
-    }
-}
-

http://git-wip-us.apache.org/repos/asf/directory-kerberos/blob/5a980a4d/contrib/haox-event/src/main/java/org/haox/event/BufferedEventHandler.java
----------------------------------------------------------------------
diff --git a/contrib/haox-event/src/main/java/org/haox/event/BufferedEventHandler.java b/contrib/haox-event/src/main/java/org/haox/event/BufferedEventHandler.java
deleted file mode 100644
index d38f9ef..0000000
--- a/contrib/haox-event/src/main/java/org/haox/event/BufferedEventHandler.java
+++ /dev/null
@@ -1,34 +0,0 @@
-package org.haox.event;
-
-import java.util.concurrent.ArrayBlockingQueue;
-import java.util.concurrent.BlockingQueue;
-
-/**
- * An EventHandler wrapper buffering events and processing them later
- */
-public abstract class BufferedEventHandler extends AbstractInternalEventHandler {
-
-    protected BlockingQueue<Event> eventQueue;
-
-    public BufferedEventHandler(EventHandler handler) {
-        super(handler);
-    }
-
-    public BufferedEventHandler() {
-        super();
-    }
-
-    @Override
-    public void init() {
-        this.eventQueue = new ArrayBlockingQueue<Event>(2);
-    }
-
-    @Override
-    protected void doHandle(Event event) throws Exception {
-        try {
-            eventQueue.put(event);
-        } catch (InterruptedException e) {
-            throw new RuntimeException(e);
-        }
-    }
-}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/directory-kerberos/blob/5a980a4d/contrib/haox-event/src/main/java/org/haox/event/Dispatcher.java
----------------------------------------------------------------------
diff --git a/contrib/haox-event/src/main/java/org/haox/event/Dispatcher.java b/contrib/haox-event/src/main/java/org/haox/event/Dispatcher.java
deleted file mode 100644
index 3d6797b..0000000
--- a/contrib/haox-event/src/main/java/org/haox/event/Dispatcher.java
+++ /dev/null
@@ -1,10 +0,0 @@
-package org.haox.event;
-
-public interface Dispatcher {
-
-    public void dispatch(Event event);
-
-    public void register(EventHandler handler);
-
-    public void register(InternalEventHandler internalHandler);
-}