public void TestManualRecovery()
{
// demonstrates how an application should use the client in its simplest (transient) mode:
// - exceptions should be handled by the application;
// - client must be disposed and recreated after an exception has occurred;
// - subscriptions are not supported.
//TimeSpan outageDuration = TimeSpan.FromMinutes(1);
//TimeSpan requestTimeout = TimeSpan.FromSeconds(30);
using (Reference <ILogger> loggerRef = Reference <ILogger> .Create(new TraceLogger(true)))
{
loggerRef.Target.LogDebug("----------> test commenced");
// create unit test storage
IStoreEngine unitTestStore = new UnitTestStoreEngine(loggerRef.Target);
CoreServer server = null;
try
{
var serverSettings = new NamedValueSet();
serverSettings.Set(CfgPropName.NodeType, (int)NodeType.Server);
serverSettings.Set(CfgPropName.EnvName, "UTT");
server = new CoreServer(loggerRef, serverSettings)
{
StoreEngine = unitTestStore
};
loggerRef.Target.LogDebug("----------> starting server");
server.Start();
// create 1st client and save object - should succeed
Guid id1;
using (ICoreClient client1 = new CoreClientFactory(loggerRef)
.SetEnv("UTT")
.Create())
{
id1 = client1.SaveObject(new TestData("Test1", 1), "Test1", null, TimeSpan.MaxValue);
// stop server and begin save - should fail with timeout
loggerRef.Target.LogDebug("----------> stopping server");
server.Stop();
DisposeHelper.SafeDispose(ref server);
client1.RequestTimeout = TimeSpan.FromSeconds(10);
UnitTestHelper.AssertThrows <TimeoutException>(() =>
{
client1.SaveObject(new TestData("Test2a", 2), "Test2", null, TimeSpan.MaxValue);
});
// further use of client throws more timeout errors
UnitTestHelper.AssertThrows <TimeoutException>(() => { client1.LoadObject <TestData>("Test2a"); });
}
// create 2nd client - should fail to connect
UnitTestHelper.AssertThrows <EndpointNotFoundException>("No server in list 'localhost:8113' found!", () =>
{
using (ICoreClient client2 = new CoreClientFactory(loggerRef)
.SetEnv("UTT")
.Create())
{
client2.SaveObject <TestData>(new TestData("Test2b", 2), "Test2", null, TimeSpan.MaxValue);
}
});
// restart server
server = new CoreServer(loggerRef, serverSettings)
{
StoreEngine = unitTestStore
};
loggerRef.Target.LogDebug("----------> restarting server");
server.Start();
// load 1st object - should succeed
ICoreItem item1;
ICoreItem item2;
using (ICoreClient client3 = new CoreClientFactory(loggerRef)
.SetEnv("UTT")
.Create())
{
item1 = client3.LoadItem <TestData>("Test1");
item2 = client3.LoadItem <TestData>("Test2");
}
Assert.IsNotNull(item1);
Assert.AreEqual(id1, item1.Id);
Assert.IsNull(item2);
// done
loggerRef.Target.LogDebug("----------> test completed");
server.Stop();
DisposeHelper.SafeDispose(ref server);
}
finally
{
DisposeHelper.SafeDispose(ref server);
}
}
}