test/jdk/com/sun/nio/sctp/SctpMultiChannel/Branch.java - platform/libcore - Git at Google

 /*
  * Copyright (c) 2009, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.
  *
  * This code is distributed in the hope that it will be useful, but WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  * version 2 for more details (a copy is included in the LICENSE file that
  * accompanied this code).
  *
  * You should have received a copy of the GNU General Public License version
  * 2 along with this work; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  */

 /* @test
  * @bug 4927640
  * @summary Tests the SCTP protocol implementation
  * @author chegar
  */

 import java.net.InetSocketAddress;
 import java.net.SocketAddress;
 import java.io.IOException;
 import java.util.Set;
 import java.util.Iterator;
 import java.util.concurrent.CountDownLatch;
 import java.util.concurrent.TimeUnit;
 import java.nio.ByteBuffer;
 import com.sun.nio.sctp.AbstractNotificationHandler;
 import com.sun.nio.sctp.Association;
 import com.sun.nio.sctp.AssociationChangeNotification;
 import com.sun.nio.sctp.AssociationChangeNotification.AssocChangeEvent;
 import com.sun.nio.sctp.HandlerResult;
 import com.sun.nio.sctp.InvalidStreamException;
 import com.sun.nio.sctp.MessageInfo;
 import com.sun.nio.sctp.SctpChannel;
 import com.sun.nio.sctp.SctpMultiChannel;
 import com.sun.nio.sctp.ShutdownNotification;
 import static java.lang.System.out;
 import static java.lang.System.err;

 public class Branch {
     /* Latches used to synchronize between the client and server so that
      * connections without any IO may not be closed without being accepted */
     final CountDownLatch clientFinishedLatch = new CountDownLatch(1);
     final CountDownLatch serverFinishedLatch = new CountDownLatch(1);

     void test(String[] args) {
         SocketAddress address = null;
         Server server = null;

         if (!Util.isSCTPSupported()) {
             out.println("SCTP protocol is not supported");
             out.println("Test cannot be run");
             return;
         }

         if (args.length == 2) {
             /* requested to connecct to a specific address */
             try {
                 int port = Integer.valueOf(args[1]);
                 address = new InetSocketAddress(args[0], port);
             } catch (NumberFormatException nfe) {
                 err.println(nfe);
             }
         } else {
             /* start server on local machine, default */
             try {
                 server = new Server();
                 server.start();
                 address = server.address();
                 debug("Server started and listening on " + address);
             } catch (IOException ioe) {
                 ioe.printStackTrace();
                 return;
             }
         }

         doTest(address);
     }

     void doTest(SocketAddress peerAddress) {
         SctpMultiChannel channel = null;
         ByteBuffer buffer = ByteBuffer.allocate(Util.LARGE_BUFFER);
         MessageInfo info = MessageInfo.createOutgoing(null, 0);

         try {
             channel = SctpMultiChannel.open();

             /* setup an association implicitly by sending a small message */
             int streamNumber = 0;
             debug("sending to " + peerAddress + " on stream number: " + streamNumber);
             info = MessageInfo.createOutgoing(peerAddress, streamNumber);
             buffer.put(Util.SMALL_MESSAGE.getBytes("ISO-8859-1"));
             buffer.flip();
             int position = buffer.position();
             int remaining = buffer.remaining();

             debug("sending small message: " + buffer);
             int sent = channel.send(buffer, info);

             check(sent == remaining, "sent should be equal to remaining");
             check(buffer.position() == (position + sent),
                     "buffers position should have been incremented by sent");

             /* Receive the COMM_UP */
             buffer.clear();
             BranchNotificationHandler handler = new BranchNotificationHandler();
             info = channel.receive(buffer, null, handler);
             check(handler.receivedCommUp(), "COMM_UP no received");
             Set<Association> associations = channel.associations();
             check(!associations.isEmpty(),"There should be some associations");
             Association bassoc = associations.iterator().next();

             /* TEST 1: branch */
             SctpChannel bchannel = channel.branch(bassoc);

             check(!bchannel.getAllLocalAddresses().isEmpty(),
                                    "branched channel should be bound");
             check(!bchannel.getRemoteAddresses().isEmpty(),
                                    "branched channel should be connected");
             check(channel.associations().isEmpty(),
                   "there should be no associations since the only one was branched off");

             buffer.clear();
             info = bchannel.receive(buffer, null, null);
             buffer.flip();
             check(info != null, "info is null");
             check(info.streamNumber() == streamNumber,
                     "message not sent on the correct stream");
             check(info.bytes() == Util.SMALL_MESSAGE.getBytes("ISO-8859-1").
                   length, "bytes received not equal to message length");
             check(info.bytes() == buffer.remaining(), "bytes != remaining");
             check(Util.compare(buffer, Util.SMALL_MESSAGE),
               "received message not the same as sent message");

         } catch (IOException ioe) {
             unexpected(ioe);
         } finally {
             clientFinishedLatch.countDown();
             try { serverFinishedLatch.await(10L, TimeUnit.SECONDS); }
             catch (InterruptedException ie) { unexpected(ie); }
             if (channel != null) {
                 try { channel.close(); }
                 catch (IOException e) { unexpected (e);}
             }
         }
     }

     class Server implements Runnable
     {
         final InetSocketAddress serverAddr;
         private SctpMultiChannel serverChannel;

         public Server() throws IOException {
             serverChannel = SctpMultiChannel.open().bind(null);
             java.util.Set<SocketAddress> addrs = serverChannel.getAllLocalAddresses();
             if (addrs.isEmpty())
                 debug("addrs should not be empty");

             serverAddr = (InetSocketAddress) addrs.iterator().next();
         }

         public void start() {
             (new Thread(this, "Server-"  + serverAddr.getPort())).start();
         }

         public InetSocketAddress address() {
             return serverAddr;
         }

         @Override
         public void run() {
             ByteBuffer buffer = ByteBuffer.allocateDirect(Util.LARGE_BUFFER);
             try {
                 MessageInfo info;

                 /* receive a small message */
                 do {
                     info = serverChannel.receive(buffer, null, null);
                     if (info == null) {
                         fail("Server: unexpected null from receive");
                             return;
                     }
                 } while (!info.isComplete());

                 buffer.flip();
                 check(info != null, "info is null");
                 check(info.streamNumber() == 0,
                         "message not sent on the correct stream");
                 check(info.bytes() == Util.SMALL_MESSAGE.getBytes("ISO-8859-1").
                       length, "bytes received not equal to message length");
                 check(info.bytes() == buffer.remaining(), "bytes != remaining");
                 check(Util.compare(buffer, Util.SMALL_MESSAGE),
                   "received message not the same as sent message");

                 check(info != null, "info is null");
                 Set<Association> assocs = serverChannel.associations();
                 check(assocs.size() == 1, "there should be only one association");

                 /* echo the message */
                 debug("Server: echoing first message");
                 buffer.flip();
                 int bytes = serverChannel.send(buffer, info);
                 debug("Server: sent " + bytes + "bytes");

                 clientFinishedLatch.await(10L, TimeUnit.SECONDS);
                 serverFinishedLatch.countDown();
             } catch (IOException ioe) {
                 unexpected(ioe);
             } catch (InterruptedException ie) {
                 unexpected(ie);
             } finally {
                 try { if (serverChannel != null) serverChannel.close(); }
                 catch (IOException  unused) {}
             }
         }
     }

     class BranchNotificationHandler extends AbstractNotificationHandler<Object>
     {
         boolean receivedCommUp;  // false

         boolean receivedCommUp() {
             return receivedCommUp;
         }

         @Override
         public HandlerResult handleNotification(
                 AssociationChangeNotification notification, Object attachment) {
             AssocChangeEvent event = notification.event();
             debug("AssociationChangeNotification");
             debug("  Association: " + notification.association());
             debug("  Event: " + event);

             if (event.equals(AssocChangeEvent.COMM_UP))
                 receivedCommUp = true;

             return HandlerResult.RETURN;
         }

         /* A ShutdownNotification handler is provided to ensure that no
          * shutdown notification are being handled since we don't expect
          * to receive them. This is not part of branch testing, it just
          * fits here to test another bug. */
         @Override
         public HandlerResult handleNotification(
                 ShutdownNotification notification, Object attachment) {
             debug("ShutdownNotification");
             debug("  Association: " + notification.association());

             fail("Shutdown should not be received");

             return HandlerResult.RETURN;
         }

     }

         //--------------------- Infrastructure ---------------------------
     boolean debug = true;
     volatile int passed = 0, failed = 0;
     void pass() {passed++;}
     void fail() {failed++; Thread.dumpStack();}
     void fail(String msg) {System.err.println(msg); fail();}
     void unexpected(Throwable t) {failed++; t.printStackTrace();}
     void check(boolean cond) {if (cond) pass(); else fail();}
     void check(boolean cond, String failMessage) {if (cond) pass(); else fail(failMessage);}
     void debug(String message) {if(debug) { System.out.println(message); }  }
     public static void main(String[] args) throws Throwable {
         Class<?> k = new Object(){}.getClass().getEnclosingClass();
         try {k.getMethod("instanceMain",String[].class)
                 .invoke( k.newInstance(), (Object) args);}
         catch (Throwable e) {throw e.getCause();}}
     public void instanceMain(String[] args) throws Throwable {
         try {test(args);} catch (Throwable t) {unexpected(t);}
         System.out.printf("%nPassed = %d, failed = %d%n%n", passed, failed);
         if (failed > 0) throw new AssertionError("Some tests failed");}

 }
	/*
	* Copyright (c) 2009, Oracle and/or its affiliates. All rights reserved.
	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
	*
	* This code is free software; you can redistribute it and/or modify it
	* under the terms of the GNU General Public License version 2 only, as
	* published by the Free Software Foundation.
	*
	* This code is distributed in the hope that it will be useful, but WITHOUT
	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
	* version 2 for more details (a copy is included in the LICENSE file that
	* accompanied this code).
	*
	* You should have received a copy of the GNU General Public License version
	* 2 along with this work; if not, write to the Free Software Foundation,
	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
	*
	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
	* or visit www.oracle.com if you need additional information or have any
	* questions.
	*/

	/* @test
	* @bug 4927640
	* @summary Tests the SCTP protocol implementation
	* @author chegar
	*/

	import java.net.InetSocketAddress;
	import java.net.SocketAddress;
	import java.io.IOException;
	import java.util.Set;
	import java.util.Iterator;
	import java.util.concurrent.CountDownLatch;
	import java.util.concurrent.TimeUnit;
	import java.nio.ByteBuffer;
	import com.sun.nio.sctp.AbstractNotificationHandler;
	import com.sun.nio.sctp.Association;
	import com.sun.nio.sctp.AssociationChangeNotification;
	import com.sun.nio.sctp.AssociationChangeNotification.AssocChangeEvent;
	import com.sun.nio.sctp.HandlerResult;
	import com.sun.nio.sctp.InvalidStreamException;
	import com.sun.nio.sctp.MessageInfo;
	import com.sun.nio.sctp.SctpChannel;
	import com.sun.nio.sctp.SctpMultiChannel;
	import com.sun.nio.sctp.ShutdownNotification;
	import static java.lang.System.out;
	import static java.lang.System.err;

	public class Branch {
	/* Latches used to synchronize between the client and server so that
	* connections without any IO may not be closed without being accepted */
	final CountDownLatch clientFinishedLatch = new CountDownLatch(1);
	final CountDownLatch serverFinishedLatch = new CountDownLatch(1);

	void test(String[] args) {
	SocketAddress address = null;
	Server server = null;

	if (!Util.isSCTPSupported()) {
	out.println("SCTP protocol is not supported");
	out.println("Test cannot be run");
	return;
	}

	if (args.length == 2) {
	/* requested to connecct to a specific address */
	try {
	int port = Integer.valueOf(args[1]);
	address = new InetSocketAddress(args[0], port);
	} catch (NumberFormatException nfe) {
	err.println(nfe);
	}
	} else {
	/* start server on local machine, default */
	try {
	server = new Server();
	server.start();
	address = server.address();
	debug("Server started and listening on " + address);
	} catch (IOException ioe) {
	ioe.printStackTrace();
	return;
	}
	}

	doTest(address);
	}

	void doTest(SocketAddress peerAddress) {
	SctpMultiChannel channel = null;
	ByteBuffer buffer = ByteBuffer.allocate(Util.LARGE_BUFFER);
	MessageInfo info = MessageInfo.createOutgoing(null, 0);

	try {
	channel = SctpMultiChannel.open();

	/* setup an association implicitly by sending a small message */
	int streamNumber = 0;
	debug("sending to " + peerAddress + " on stream number: " + streamNumber);
	info = MessageInfo.createOutgoing(peerAddress, streamNumber);
	buffer.put(Util.SMALL_MESSAGE.getBytes("ISO-8859-1"));
	buffer.flip();
	int position = buffer.position();
	int remaining = buffer.remaining();

	debug("sending small message: " + buffer);
	int sent = channel.send(buffer, info);

	check(sent == remaining, "sent should be equal to remaining");
	check(buffer.position() == (position + sent),
	"buffers position should have been incremented by sent");

	/* Receive the COMM_UP */
	buffer.clear();
	BranchNotificationHandler handler = new BranchNotificationHandler();
	info = channel.receive(buffer, null, handler);
	check(handler.receivedCommUp(), "COMM_UP no received");
	Set<Association> associations = channel.associations();
	check(!associations.isEmpty(),"There should be some associations");
	Association bassoc = associations.iterator().next();

	/* TEST 1: branch */
	SctpChannel bchannel = channel.branch(bassoc);

	check(!bchannel.getAllLocalAddresses().isEmpty(),
	"branched channel should be bound");
	check(!bchannel.getRemoteAddresses().isEmpty(),
	"branched channel should be connected");
	check(channel.associations().isEmpty(),
	"there should be no associations since the only one was branched off");

	buffer.clear();
	info = bchannel.receive(buffer, null, null);
	buffer.flip();
	check(info != null, "info is null");
	check(info.streamNumber() == streamNumber,
	"message not sent on the correct stream");
	check(info.bytes() == Util.SMALL_MESSAGE.getBytes("ISO-8859-1").
	length, "bytes received not equal to message length");
	check(info.bytes() == buffer.remaining(), "bytes != remaining");
	check(Util.compare(buffer, Util.SMALL_MESSAGE),
	"received message not the same as sent message");

	} catch (IOException ioe) {
	unexpected(ioe);
	} finally {
	clientFinishedLatch.countDown();
	try { serverFinishedLatch.await(10L, TimeUnit.SECONDS); }
	catch (InterruptedException ie) { unexpected(ie); }
	if (channel != null) {
	try { channel.close(); }
	catch (IOException e) { unexpected (e);}
	}
	}
	}

	class Server implements Runnable
	{
	final InetSocketAddress serverAddr;
	private SctpMultiChannel serverChannel;

	public Server() throws IOException {
	serverChannel = SctpMultiChannel.open().bind(null);
	java.util.Set<SocketAddress> addrs = serverChannel.getAllLocalAddresses();
	if (addrs.isEmpty())
	debug("addrs should not be empty");

	serverAddr = (InetSocketAddress) addrs.iterator().next();
	}

	public void start() {
	(new Thread(this, "Server-" + serverAddr.getPort())).start();
	}

	public InetSocketAddress address() {
	return serverAddr;
	}

	@Override
	public void run() {
	ByteBuffer buffer = ByteBuffer.allocateDirect(Util.LARGE_BUFFER);
	try {
	MessageInfo info;

	/* receive a small message */
	do {
	info = serverChannel.receive(buffer, null, null);
	if (info == null) {
	fail("Server: unexpected null from receive");
	return;
	}
	} while (!info.isComplete());

	buffer.flip();
	check(info != null, "info is null");
	check(info.streamNumber() == 0,
	"message not sent on the correct stream");
	check(info.bytes() == Util.SMALL_MESSAGE.getBytes("ISO-8859-1").
	length, "bytes received not equal to message length");
	check(info.bytes() == buffer.remaining(), "bytes != remaining");
	check(Util.compare(buffer, Util.SMALL_MESSAGE),
	"received message not the same as sent message");

	check(info != null, "info is null");
	Set<Association> assocs = serverChannel.associations();
	check(assocs.size() == 1, "there should be only one association");

	/* echo the message */
	debug("Server: echoing first message");
	buffer.flip();
	int bytes = serverChannel.send(buffer, info);
	debug("Server: sent " + bytes + "bytes");

	clientFinishedLatch.await(10L, TimeUnit.SECONDS);
	serverFinishedLatch.countDown();
	} catch (IOException ioe) {
	unexpected(ioe);
	} catch (InterruptedException ie) {
	unexpected(ie);
	} finally {
	try { if (serverChannel != null) serverChannel.close(); }
	catch (IOException unused) {}
	}
	}
	}

	class BranchNotificationHandler extends AbstractNotificationHandler<Object>
	{
	boolean receivedCommUp; // false

	boolean receivedCommUp() {
	return receivedCommUp;
	}

	@Override
	public HandlerResult handleNotification(
	AssociationChangeNotification notification, Object attachment) {
	AssocChangeEvent event = notification.event();
	debug("AssociationChangeNotification");
	debug(" Association: " + notification.association());
	debug(" Event: " + event);

	if (event.equals(AssocChangeEvent.COMM_UP))
	receivedCommUp = true;

	return HandlerResult.RETURN;
	}

	/* A ShutdownNotification handler is provided to ensure that no
	* shutdown notification are being handled since we don't expect
	* to receive them. This is not part of branch testing, it just
	* fits here to test another bug. */
	@Override
	public HandlerResult handleNotification(
	ShutdownNotification notification, Object attachment) {
	debug("ShutdownNotification");
	debug(" Association: " + notification.association());

	fail("Shutdown should not be received");

	return HandlerResult.RETURN;
	}

	}

	//--------------------- Infrastructure ---------------------------
	boolean debug = true;
	volatile int passed = 0, failed = 0;
	void pass() {passed++;}
	void fail() {failed++; Thread.dumpStack();}
	void fail(String msg) {System.err.println(msg); fail();}
	void unexpected(Throwable t) {failed++; t.printStackTrace();}
	void check(boolean cond) {if (cond) pass(); else fail();}
	void check(boolean cond, String failMessage) {if (cond) pass(); else fail(failMessage);}
	void debug(String message) {if(debug) { System.out.println(message); } }
	public static void main(String[] args) throws Throwable {
	Class<?> k = new Object(){}.getClass().getEnclosingClass();
	try {k.getMethod("instanceMain",String[].class)
	.invoke( k.newInstance(), (Object) args);}
	catch (Throwable e) {throw e.getCause();}}
	public void instanceMain(String[] args) throws Throwable {
	try {test(args);} catch (Throwable t) {unexpected(t);}
	System.out.printf("%nPassed = %d, failed = %d%n%n", passed, failed);
	if (failed > 0) throw new AssertionError("Some tests failed");}

	}