package org.jgroups.tests;
import org.jgroups.Global;
import org.jgroups.JChannel;
import org.jgroups.Message;
import org.jgroups.ReceiverAdapter;
import org.jgroups.View;
import org.jgroups.protocols.MERGE2;
import org.jgroups.protocols.FD;
import org.jgroups.protocols.FD_ALL;
import org.jgroups.protocols.pbcast.GMS;
import org.jgroups.stack.GossipRouter;
import org.jgroups.stack.ProtocolStack;
import org.jgroups.util.Promise;
import org.jgroups.util.StackType;
import org.jgroups.util.Util;
import org.testng.annotations.AfterClass;
import org.testng.annotations.AfterMethod;
import org.testng.annotations.BeforeClass;
import org.testng.annotations.Test;
/**
* Ensures that a disconnected channel reconnects correctly, for different
* stack configurations.
*
* @author Ovidiu Feodorov <ovidiu@feodorov.com>
* @author Bela Ban belaban@yahoo.com
**/
@Test(groups={Global.STACK_INDEPENDENT, Global.GOSSIP_ROUTER},sequential=true)
public class TUNNEL_Test extends ChannelTestBase{
private JChannel channel, coordinator;
private final static String GROUP="TUNNEL_Test";
private GossipRouter gossipRouter;
private static final String props="tunnel.xml";
@BeforeClass
void startRouter() throws Exception {
String bind_addr=Util.getProperty(Global.BIND_ADDR);
if(bind_addr == null) {
StackType type=Util.getIpStackType();
if(type == StackType.IPv6)
bind_addr="::1";
else
bind_addr="127.0.0.1";
}
gossipRouter=new GossipRouter(12001, bind_addr);
gossipRouter.start();
}
@AfterClass(alwaysRun=true)
void stopRouter() throws Exception {
gossipRouter.stop();
}
@AfterMethod(alwaysRun=true)
void tearDown() throws Exception {
Util.close(channel, coordinator);
}
/**
* Tests if the channel has a null local address after disconnect (using TUNNEL).
**/
public void testNullLocalAddress_TUNNEL() throws Exception {
channel = new JChannel(props);
setProps(channel);
channel.connect(GROUP);
assert channel.getAddress() != null;
channel.disconnect();
assert channel.getAddress() == null;
}
/**
* Tests connect-disconnect-connect sequence for a group with one member
* (using default configuration).
**/
public void testDisconnectConnectOne_Default() throws Exception {
channel=new JChannel(props);
setProps(channel);
channel.connect("DisconnectTest.testgroup-1");
channel.disconnect();
channel.connect("DisconnectTest.testgroup-2");
View view=channel.getView();
assert view.size() == 1;
assert view.containsMember(channel.getAddress());
}
/**
* Tests connect-disconnect-connect sequence for a group with two members
* (using default configuration).
**/
public void testDisconnectConnectTwo_Default() throws Exception {
coordinator=new JChannel(props);
setProps(coordinator);
channel=new JChannel(props);
setProps(channel);
coordinator.connect(GROUP);
channel.connect("DisconnectTest.testgroup-1");
channel.disconnect();
channel.connect(GROUP);
View view=channel.getView();
assert view.size() == 2;
assert view.containsMember(channel.getAddress());
assert view.containsMember(coordinator.getAddress());
}
/**
* Tests connect-disconnect-connect-send sequence for a group with two
* members, using the default stack configuration. Assumes that default
* configuration includes pbcast.NAKACK. Test case introduced before fixing
* pbcast.NAKACK bug, which used to leave pbcast.NAKACK in a broken state
* after DISCONNECT. Because of this problem, the channel couldn't be used
* to multicast messages.
**/
public void testDisconnectConnectSendTwo_Default() throws Exception {
final Promise<Message> msgPromise=new Promise<Message>();
coordinator=new JChannel(props);
setProps(coordinator);
coordinator.connect(GROUP);
coordinator.setReceiver(new PromisedMessageListener(msgPromise));
channel=new JChannel(props);
setProps(channel);
channel.connect("DisconnectTest.testgroup-1");
channel.disconnect();
channel.connect(GROUP);
channel.send(new Message(null, null, "payload"));
Message msg=msgPromise.getResult(20000);
assert msg != null;
assert "payload".equals(msg.getObject());
}
/**
* Tests connect-disconnect-connect sequence for a group with one member
* (using TUNNEL).
**/
public void testDisconnectConnectOne_TUNNEL() throws Exception {
channel=new JChannel(props);
setProps(channel);
channel.connect("DisconnectTest.testgroup-1");
channel.disconnect();
channel.connect("DisconnectTest.testgroup-2");
View view=channel.getView();
assert view.size() == 1;
assert view.containsMember(channel.getAddress());
}
public void testFailureDetection() throws Exception {
coordinator=new JChannel(props);
coordinator.setName("coord");
setProps(coordinator);
coordinator.connect(GROUP);
channel=new JChannel(props);
channel.setName("participant");
setProps(channel);
channel.connect(GROUP);
System.out.println("shutting down the participant channel");
Util.shutdown(channel);
GMS coord_gms=(GMS)coordinator.getProtocolStack().findProtocol(GMS.class);
if(coord_gms != null)
coord_gms.setLevel("trace");
View view;
long end_time=System.currentTimeMillis() + 10000;
while(System.currentTimeMillis() < end_time) {
view=coordinator.getView();
if(view.size() == 1)
break;
Util.sleep(500);
}
view=coordinator.getView();
assert view.size() == 1 : "coordinator's view is " + view + ", but we expected a view of 1 member";
if(coord_gms != null)
coord_gms.setLevel("warn");
}
public void testConnectThree() throws Exception {
coordinator=new JChannel(props);
setProps(coordinator);
channel=new JChannel(props);
setProps(channel);
coordinator.connect(GROUP);
channel.connect(GROUP);
JChannel third = new JChannel (props);
third.connect(GROUP);
View view=channel.getView();
assert channel.getView().size() == 3;
assert third.getView().size() == 3;
assert view.containsMember(channel.getAddress());
assert view.containsMember(coordinator.getAddress());
Util.close(third);
}
/**
* Tests connect-disconnect-connect sequence for a group with two members
* (using TUNNEL).
**/
public void testDisconnectConnectTwo_TUNNEL() throws Exception {
coordinator=new JChannel(props);
setProps(coordinator);
coordinator.connect(GROUP);
channel=new JChannel(props);
setProps(channel);
channel.connect("DisconnectTest.testgroup-1");
channel.disconnect();
channel.connect(GROUP);
Thread.sleep(1000);
View view=channel.getView();
assert view.size() == 2;
assert view.containsMember(channel.getAddress());
assert view.containsMember(coordinator.getAddress());
}
/**
* Tests connect-disconnect-connect-send sequence for a group with two
* members, using TUNNEL. Test case introduced before fixing pbcast.NAKACK
* bug, which used to leave pbcast.NAKACK in a broken state after
* DISCONNECT. Because of this problem, the channel couldn't be used to
* multicast messages.
**/
public void testDisconnectConnectSendTwo_TUNNEL() throws Exception {
final Promise<Message> msgPromise=new Promise<Message>();
coordinator=new JChannel(props);
setProps(coordinator);
coordinator.connect(GROUP);
coordinator.setReceiver(new PromisedMessageListener(msgPromise));
channel=new JChannel(props);
setProps(channel);
channel.connect("DisconnectTest.testgroup-1");
channel.disconnect();
channel.connect(GROUP);
channel.send(new Message(null, null, "payload"));
Message msg=msgPromise.getResult(20000);
assert msg != null;
assert "payload".equals(msg.getObject());
}
private static void setProps(JChannel channel) {
ProtocolStack stack=channel.getProtocolStack();
MERGE2 merge=(MERGE2)stack.findProtocol(MERGE2.class);
if(merge != null) {
merge.setMinInterval(1000);
merge.setMaxInterval(3000);
}
FD fd=(FD)stack.findProtocol(FD.class);
if(fd != null) {
fd.setTimeout(1000);
fd.setMaxTries(2);
}
FD_ALL fd_all=(FD_ALL)stack.findProtocol(FD_ALL.class);
if(fd_all != null) {
fd_all.setTimeout(2000);
fd_all.setInterval(600);
}
}
private static class PromisedMessageListener extends ReceiverAdapter {
private final Promise<Message> promise;
public PromisedMessageListener(Promise<Message> promise) {
this.promise=promise;
}
public void receive(Message msg) {
promise.setResult(msg);
}
}
}