--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/sample/share/nio/server/RequestServicer.java	Sun Aug 17 15:54:13 2014 +0100
@@ -0,0 +1,157 @@
+/*
+ * Copyright (c) 2004, 2011, Oracle and/or its affiliates. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ *   - Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ *
+ *   - Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ *
+ *   - Neither the name of Oracle nor the names of its
+ *     contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+ * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * This source code is provided to illustrate the usage of a given feature
+ * or technique and has been deliberately simplified. Additional steps
+ * required for a production-quality application, such as security checks,
+ * input validation and proper error handling, might not be present in
+ * this sample code.
+ */
+
+
+import java.io.*;
+import java.nio.*;
+
+/**
+ * Primary driver class used by blocking Servers to receive,
+ * prepare, send, and shutdown requests.
+ *
+ * @author Mark Reinhold
+ * @author Brad R. Wetmore
+ */
+class RequestServicer implements Runnable {
+
+    private ChannelIO cio;
+
+    private static int created = 0;
+
+    RequestServicer(ChannelIO cio) {
+        this.cio = cio;
+
+        // Simple heartbeat to let user know we're alive.
+        synchronized (RequestServicer.class) {
+            created++;
+            if ((created % 50) == 0) {
+                System.out.println(".");
+                created = 0;
+            } else {
+                System.out.print(".");
+            }
+        }
+    }
+
+    private void service() throws IOException {
+        Reply rp = null;
+        try {
+            ByteBuffer rbb = receive();         // Receive
+            Request rq = null;
+            try {                               // Parse
+                rq = Request.parse(rbb);
+            } catch (MalformedRequestException x) {
+                rp = new Reply(Reply.Code.BAD_REQUEST,
+                               new StringContent(x));
+            }
+            if (rp == null) rp = build(rq);     // Build
+            do {} while (rp.send(cio));         // Send
+            do {} while (!cio.shutdown());
+            cio.close();
+            rp.release();
+        } catch (IOException x) {
+            String m = x.getMessage();
+            if (!m.equals("Broken pipe") &&
+                    !m.equals("Connection reset by peer")) {
+                System.err.println("RequestHandler: " + x.toString());
+            }
+
+            try {
+                /*
+                 * We had a failure here, so we'll try to be nice
+                 * before closing down and send off a close_notify,
+                 * but if we can't get the message off with one try,
+                 * we'll just shutdown.
+                 */
+                cio.shutdown();
+            } catch (IOException e) {
+                // ignore
+            }
+
+            cio.close();
+            if (rp != null) {
+                rp.release();
+            }
+        }
+    }
+
+    public void run() {
+        try {
+            service();
+        } catch (IOException x) {
+            x.printStackTrace();
+        }
+    }
+
+    ByteBuffer receive() throws IOException {
+
+        do {} while (!cio.doHandshake());
+
+        for (;;) {
+            int read = cio.read();
+            ByteBuffer bb = cio.getReadBuf();
+            if ((read < 0) || (Request.isComplete(bb))) {
+                bb.flip();
+                return bb;
+            }
+        }
+    }
+
+    Reply build(Request rq) throws IOException {
+
+        Reply rp = null;
+        Request.Action action = rq.action();
+        if ((action != Request.Action.GET) &&
+                (action != Request.Action.HEAD))
+            rp = new Reply(Reply.Code.METHOD_NOT_ALLOWED,
+                           new StringContent(rq.toString()));
+        else
+            rp = new Reply(Reply.Code.OK,
+                           new FileContent(rq.uri()), action);
+        try {
+            rp.prepare();
+        } catch (IOException x) {
+            rp.release();
+            rp = new Reply(Reply.Code.NOT_FOUND,
+                           new StringContent(x));
+            rp.prepare();
+        }
+        return rp;
+    }
+}