@Test
public void serverNotEnoughWorkerThreadsCausesBindTimerToCloseChannel() throws Exception {
BlockThreadSmppServerHandler serverHandler0 = new BlockThreadSmppServerHandler();
SmppServerConfiguration configuration = createSmppServerConfiguration();
// permit up to 0.5 seconds to bind
configuration.setBindTimeout(500);
DefaultSmppServer server0 = new DefaultSmppServer(configuration, serverHandler0);
server0.start();
try {
// there is an issue without telling the server how many worker threads
// to create beforehand with starvation only Runtime.getRuntime().availableProcessors()
// worker threads are created by default!!! (yikes)
int workersToStarveWith = Runtime.getRuntime().availableProcessors();
// initiate bind requests on all sessions we care about -- this should
// technicaly "starve" the server of worker threads since they'll all
// be blocked in a Thread.sleep
for (int i = 0; i < workersToStarveWith; i++) {
DefaultSmppClient client0 = new DefaultSmppClient();
SmppSessionConfiguration sessionConfig0 = createDefaultConfiguration();
sessionConfig0.setName("WorkerTest.Session." + i);
// don't use default method of binding, connect the socket first
DefaultSmppSession session0 =
client0.doOpen(sessionConfig0, new DefaultSmppSessionHandler());
// try to bind and execute a bind request and wait for a bind response
BaseBind bindRequest = client0.createBindRequest(sessionConfig0);
try {
// just send the request without caring if it succeeds
session0.sendRequestPdu(bindRequest, 2000, false);
} catch (SmppChannelException e) {
System.out.println(e.getMessage());
}
}
// now try to bind normally -- since all previous workers are "starved"
// this should fail to bind and the socket closed by the "BindTimer"
DefaultSmppClient client0 = new DefaultSmppClient();
SmppSessionConfiguration sessionConfig0 = createDefaultConfiguration();
sessionConfig0.setName("WorkerTestChannelClosed.Session");
sessionConfig0.setBindTimeout(750);
try {
client0.bind(sessionConfig0);
Assert.fail();
} catch (SmppTimeoutException e) {
// the BindTimer should end up closing the connection since the
// worker thread were "starved"
logger.debug("Correctly received SmppChannelException during bind");
}
} finally {
Thread.sleep(10500);
Assert.assertEquals(0, server0.getChannels().size());
Assert.assertEquals(3, server0.getCounters().getBindTimeouts());
server0.destroy();
}
}
@Test
public void serverSessionBindVersion33() throws Exception {
DefaultSmppServer server0 = createSmppServer();
server0.start();
try {
DefaultSmppClient client0 = new DefaultSmppClient();
SmppSessionConfiguration sessionConfig0 = createDefaultConfiguration();
// set back to version 3.3
sessionConfig0.setInterfaceVersion(SmppConstants.VERSION_3_3);
// we will not use the proper method of binding since we need to
// access the bind response to verify it's correct
DefaultSmppSession session0 = client0.doOpen(sessionConfig0, new DefaultSmppSessionHandler());
// create a bind request based on this config
BaseBind bindRequest = client0.createBindRequest(sessionConfig0);
// execute a bind request and wait for a bind response
BaseBindResp bindResponse = session0.bind(bindRequest, 200);
Thread.sleep(100);
SmppServerSession serverSession0 = serverHandler.sessions.iterator().next();
Assert.assertEquals(1, serverHandler.sessions.size());
Assert.assertEquals(1, server0.getChannels().size());
Assert.assertEquals(true, serverSession0.isBound());
Assert.assertEquals(SmppBindType.TRANSCEIVER, serverSession0.getBindType());
Assert.assertEquals(SmppSession.Type.SERVER, serverSession0.getLocalType());
Assert.assertEquals(SmppSession.Type.CLIENT, serverSession0.getRemoteType());
// verify "requested" version is still 3.3
Assert.assertEquals(
SmppConstants.VERSION_3_3, serverSession0.getConfiguration().getInterfaceVersion());
// verify the session interface version is normalized to 3.3
Assert.assertEquals(SmppConstants.VERSION_3_3, serverSession0.getInterfaceVersion());
Assert.assertEquals(false, serverSession0.areOptionalParametersSupported());
// verify client session version settings are correct
Assert.assertEquals((byte) 0x33, session0.getConfiguration().getInterfaceVersion());
Assert.assertEquals((byte) 0x33, session0.getInterfaceVersion());
Assert.assertEquals(false, session0.areOptionalParametersSupported());
// verify NO optional parameters were included in bind response
Assert.assertEquals(0, bindResponse.getOptionalParameterCount());
Assert.assertEquals("cloudhopper", bindResponse.getSystemId());
serverSession0.close();
Thread.sleep(200);
Assert.assertEquals(0, serverHandler.sessions.size());
Assert.assertEquals(0, server0.getChannels().size());
Assert.assertEquals(false, serverSession0.isBound());
} finally {
server0.destroy();
}
}
@Test
public void serverSessionTimesOutWithNoBindRequest() throws Exception {
DefaultSmppServer server0 = createSmppServer();
server0.getConfiguration().setBindTimeout(50);
server0.start();
try {
DefaultSmppClient client0 = new DefaultSmppClient();
SmppSessionConfiguration sessionConfig0 = createDefaultConfiguration();
// we will not use the proper method of binding since we need to
DefaultSmppSession session0 = client0.doOpen(sessionConfig0, new DefaultSmppSessionHandler());
// there is a bind timeout of 50 ms and we'll wait 100 ms
Thread.sleep(100);
// try to bind and execute a bind request and wait for a bind response
BaseBind bindRequest = client0.createBindRequest(sessionConfig0);
try {
BaseBindResp bindResponse = session0.bind(bindRequest, 200);
Assert.fail();
} catch (SmppChannelException e) {
// correct behavior
}
// verify everything after the session timed out
Assert.assertEquals(0, serverHandler.sessions.size());
Assert.assertEquals(0, server0.getChannels().size());
Assert.assertEquals(false, session0.isBound());
Assert.assertEquals(true, session0.isClosed());
} finally {
server0.destroy();
}
}