/// <summary>
/// Initialize the Figaro data objects via Figaro.Configuration
/// </summary>
public FigaroDataContext(string rootPath)
{
Initialized = false;
//The Figaro.Configuration will create the FigaroEnv object for the XmlManager it is
// assigned to, so we can simply retrieve the reference to it from the manager and
// avoid creating multiple instances and adding additional, unnecessary reference
// instances. Otherwise, we'd simply create it first and assign to the manager.
Environment = new FigaroEnv();
Environment.SetThreadCount(20);
Environment.SetCacheSize(new EnvCacheSize(1, 0), 1);
Environment.SetCacheMax(new EnvCacheSize(2, 0));
//http://help.bdbxml.net/html/M_Figaro_FigaroEnv_SetMaxSequentialWriteOperations.htm
//Environment.SetMaxSequentialWriteOperations(10, 1000000); // set to 1 second (1000000 nanoseconds)
// Configuring the Locking Subsystem: http://help.bdbxml.net/html/6c964163-f0d1-4b9e-97dc-38b1ab02a895.htm
//http://help.bdbxml.net/html/M_Figaro_FigaroEnv_SetLockPartitions.htm
Environment.SetLockPartitions(20);
// Configuring Deadlock Detection: http://help.bdbxml.net/html/99788b9d-b930-4191-96f3-311f0b8ffebf.htm
// DeadlockDetectType Enumeration: http://help.bdbxml.net/html/T_Figaro_DeadlockDetectType.htm
Environment.DeadlockDetectPolicy = DeadlockDetectType.Oldest;
Environment.SetMaxLockers(5000);
Environment.SetMaxLocks(50000);
Environment.SetMaxLockedObjects(50000);
var path = Path.Combine(rootPath, "data");
if (!Directory.Exists(path))
{
Directory.CreateDirectory(path);
}
//Console.WriteLine("data directory is " + path);
// to log transactions in memory:
// see http://help.bdbxml.net/html/b166adda-4545-403d-a034-66a1d2774004.htm for details.
//Environment.SetLogOptions(EnvLogOptions.InMemory, true);
//Environment.SetLogOptions(EnvLogOptions.AutoRemove, true);
Environment.SetMaxFileDescriptors(100);
Environment.SetLogBufferSize(1024 * 1024 * 750);
Environment.MaxLogSize = 1024 * 1024 * 100;
Environment.SetMaxTransactions(500);
Environment.SetLogOptions(EnvLogOptions.Direct, true);
Environment.SetEnvironmentOption(EnvConfig.MultiVersion, true);
Environment.SetEnvironmentOption(EnvConfig.DirectDB, true);
//Environment.SetTimeout(10000,EnvironmentTimeoutType.Lock);
Environment.SetTimeout(10000, EnvironmentTimeoutType.Transaction);
Environment.SetTimeout(1000, EnvironmentTimeoutType.Lock);
/* Enable message events for tracing purposes */
//Environment.OnProcess += Environment_OnProcess;
//Environment.OnMessage += Environment_OnMessage;
Environment.OnErr += Environment_OnErr;
Environment.ErrEventEnabled = true;
//Environment.MessageEventEnabled = true;
//Environment.ProcessEventEnabled = true;
Environment.Open(path, EnvOpenOptions.SystemSharedMem | EnvOpenOptions.Recover | EnvOpenOptions.TransactionDefaults | EnvOpenOptions.Create | EnvOpenOptions.Thread);
Manager = new XmlManager(Environment, ManagerInitOptions.AllOptions);
// for resolving XQuery constructs - for more info:
//http://help.bdbxml.net/html/e1571f63-0de0-4119-8dd3-68dc8693f732.htm
resolver = new NancyXQueryResolver(new Uri("http://modules.bdbxml.net/nancy/"), rootPath);
Manager.RegisterResolver(resolver);
/*
* open the container
*/
using (var tx = Manager.CreateTransaction(TransactionType.SyncTransaction))
{
try
{
//more info on ContainerConfig: http://help.bdbxml.net/html/b54e4294-4814-404f-a15f-32162b672260.htm
BeerDb = Manager.OpenContainer(tx, "beer.dbxml",
new ContainerConfig
{
MultiVersion = true,
AllowCreate = true,
Threaded = true,
IndexNodes = ConfigurationState.Off,
Transactional = true,
NoMMap = false,
Statistics = ConfigurationState.On
});
tx.Commit();
BeerDb.AddAlias("beer");
ConfigureContainerIndex();
}
catch (Exception)
{
tx.Abort();
throw;
}
}
Initialized = true;
}
