package org.jgroups.tests;
import org.jgroups.Global;
import org.jgroups.JChannel;
import org.jgroups.Message;
import org.jgroups.ReceiverAdapter;
import org.jgroups.logging.Log;
import org.jgroups.logging.LogFactory;
import org.jgroups.protocols.*;
import org.jgroups.protocols.pbcast.GMS;
import org.jgroups.protocols.pbcast.NAKACK2;
import org.jgroups.stack.DiagnosticsHandler;
import org.jgroups.stack.ProtocolStack;
import org.jgroups.util.*;
import org.testng.annotations.AfterMethod;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.Test;
import java.io.IOException;
import java.net.InetAddress;
import java.util.concurrent.ArrayBlockingQueue;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;
/**
* Tests tthe {@link RSVP} protocol
* @author Bela Ban
*/
@Test(groups=Global.FUNCTIONAL,sequential=true)
public class RSVPTest {
protected static final int NUM=5; // number of members
protected final JChannel[] channels=new JChannel[NUM];
protected final MyReceiver[] receivers=new MyReceiver[NUM];
protected MyDiagnosticsHandler handler;
protected ThreadPoolExecutor oob_thread_pool;
protected ThreadPoolExecutor thread_pool;
@BeforeMethod
void setUp() throws Exception {
handler=new MyDiagnosticsHandler(InetAddress.getByName("224.0.75.75"), 7500,
LogFactory.getLog(DiagnosticsHandler.class),
new DefaultSocketFactory(),
new DefaultThreadFactory("", false));
handler.start();
TimeScheduler timer=new TimeScheduler2(new DefaultThreadFactory("Timer", true, true),
5,20,
3000, 5000, "abort");
oob_thread_pool=new ThreadPoolExecutor(5, Math.max(5, NUM/4), 3000, TimeUnit.MILLISECONDS,
new ArrayBlockingQueue<Runnable>(NUM * NUM));
oob_thread_pool.setRejectedExecutionHandler(new ThreadPoolExecutor.DiscardPolicy());
thread_pool=new ThreadPoolExecutor(5, Math.max(5, NUM/4), 3000, TimeUnit.MILLISECONDS,
new ArrayBlockingQueue<Runnable>(NUM * NUM));
thread_pool.setRejectedExecutionHandler(new ThreadPoolExecutor.CallerRunsPolicy());
System.out.print("Connecting channels: ");
for(int i=0; i < NUM; i++) {
SHARED_LOOPBACK shared_loopback=(SHARED_LOOPBACK)new SHARED_LOOPBACK().setValue("enable_bundling", false);
// UDP shared_loopback=(UDP)new UDP().setValue("enable_bundling", false);
shared_loopback.setLoopback(false);
shared_loopback.setTimer(timer);
shared_loopback.setOOBThreadPool(oob_thread_pool);
shared_loopback.setDefaultThreadPool(thread_pool);
shared_loopback.setDiagnosticsHandler(handler);
channels[i]=Util.createChannel(shared_loopback,
new DISCARD(),
new PING().setValue("timeout",1000).setValue("num_initial_members",NUM)
.setValue("force_sending_discovery_rsps", true),
new MERGE2().setValue("min_interval", 1000).setValue("max_interval", 3000),
new NAKACK2().setValue("use_mcast_xmit",false)
.setValue("discard_delivered_msgs",true)
.setValue("log_discard_msgs",false).setValue("log_not_found_msgs",false)
.setValue("xmit_table_num_rows",5)
.setValue("xmit_table_msgs_per_row",10),
// new UNICAST(),
new UNICAST2().setValue("xmit_table_num_rows",5).setValue("xmit_interval", 300)
.setValue("xmit_table_msgs_per_row",10)
.setValue("conn_expiry_timeout", 10000)
.setValue("stable_interval", 30000)
.setValue("max_bytes", 50000),
new RSVP().setValue("timeout", 10000).setValue("throw_exception_on_timeout", false),
// new STABLE().setValue("max_bytes",500000).setValue("desired_avg_gossip", 60000),
new GMS().setValue("print_local_addr",false)
.setValue("leave_timeout",100)
.setValue("log_view_warnings",false)
.setValue("view_ack_collection_timeout",2000)
.setValue("log_collect_msgs",false));
channels[i].setName(String.valueOf((i + 1)));
receivers[i]=new MyReceiver();
channels[i].setReceiver(receivers[i]);
channels[i].connect("RSVPTest");
System.out.print(i + 1 + " ");
if(i == 0)
Util.sleep(2000);
}
Util.waitUntilAllChannelsHaveSameSize(30000, 1000, channels);
System.out.println("");
}
@AfterMethod
void tearDown() throws Exception {
for(int i=NUM-1; i >= 0; i--) {
ProtocolStack stack=channels[i].getProtocolStack();
String cluster_name=channels[i].getClusterName();
stack.stopStack(cluster_name);
stack.destroy();
}
handler.destroy();
}
public void testSynchronousMulticastSend() throws Exception {
for(JChannel ch: channels)
assert ch.getView().size() == NUM : "channel " + ch.getAddress() + ": view is " + ch.getView();
// test with a multicast message:
short value=(short)Math.abs((short)Util.random(10000));
Message msg=new Message(null, null, value);
msg.setFlag(Message.Flag.RSVP);
DISCARD discard=(DISCARD)channels[0].getProtocolStack().findProtocol(DISCARD.class);
discard.setDropDownMulticasts(1);
long start=System.currentTimeMillis();
channels[0].send(msg);
long diff=System.currentTimeMillis() - start;
System.out.println("sending took " + diff + " ms");
int cnt=1;
for(MyReceiver receiver: receivers) {
System.out.println("receiver " + cnt++ + ": value=" + receiver.getValue());
}
for(MyReceiver receiver: receivers) {
long tmp_value=receiver.getValue();
assert tmp_value == value : "value is " + tmp_value + ", but should be " + value;
}
}
public void testSynchronousUnicastSend() throws Exception {
for(JChannel ch: channels)
assert ch.getView().size() == NUM : "channel " + ch.getAddress() + ": view is " + ch.getView();
// test with a multicast message:
short value=(short)Math.abs((short)Util.random(10000));
Message msg=new Message(channels[1].getAddress(), null, value);
msg.setFlag(Message.Flag.RSVP);
DISCARD discard=(DISCARD)channels[0].getProtocolStack().findProtocol(DISCARD.class);
discard.setDropDownUnicasts(1);
long start=System.currentTimeMillis();
channels[0].send(msg);
long diff=System.currentTimeMillis() - start;
System.out.println("sending took " + diff + " ms");
System.out.println("receiver: value=" + receivers[1].getValue());
long tmp_value=receivers[1].getValue();
assert tmp_value == value : "value is " + tmp_value + ", but should be " + value;
}
public void testCancellationByClosingChannel() throws Exception {
// test with a multicast message:
short value=(short)Math.abs((short)Util.random(10000));
Message msg=new Message(null, null, value);
msg.setFlag(Message.Flag.RSVP);
DISCARD discard=(DISCARD)channels[0].getProtocolStack().findProtocol(DISCARD.class);
discard.setDiscardAll(true);
RSVP rsvp=(RSVP)channels[0].getProtocolStack().findProtocol(RSVP.class);
rsvp.setValue("throw_exception_on_timeout", true);
try {
Thread closer=new Thread() {
public void run() {
Util.sleep(2000);
System.out.println("closer closing channel");
channels[0].close();
}
};
closer.start();
channels[0].send(msg); // this will be unsuccessful as the other 4 members won't receive it
// test fails if we get a TimeoutException
}
finally {
discard.setDiscardAll(false);
rsvp.setValue("throw_exception_on_timeout", false);
}
}
protected static class MyReceiver extends ReceiverAdapter {
short value=0;
public short getValue() {return value;}
public void receive(Message msg) {
value=(Short)msg.getObject();
}
}
protected static class MyDiagnosticsHandler extends DiagnosticsHandler {
protected MyDiagnosticsHandler(InetAddress diagnostics_addr, int diagnostics_port, Log log, SocketFactory socket_factory, ThreadFactory thread_factory) {
super(diagnostics_addr,diagnostics_port,log,socket_factory,thread_factory);
}
public void start() throws IOException {super.start();}
public void stop() {}
public void destroy() {super.stop();}
}
}