/// <summary>
/// Setup and return the Virtual Cache
/// </summary>
/// <param name="ObjectCacheID"></param>
/// <returns></returns>
public ISortedDictionary <int, Person> GetObjectCache(int ObjectCacheID)
{
string CacheFilename = "OFile" + ObjectCacheID.ToString();
string ServerPath = "SopBin\\";
string ServerFilename = "OServer.dta";
Sop.IFile f = null;
string fn = string.Format("{0}{1}.{2}", ServerPath, CacheFilename, ObjectServer.DefaultFileExtension);
if (server == null)
{
server = Sop.ObjectServer.OpenWithTransaction(string.Format("{0}{1}", ServerPath, ServerFilename),
new Preferences {
MemoryExtenderMode = true
});
}
f = server.FileSet[CacheFilename];
if (f == null)
{
f = server.FileSet.Add(CacheFilename, fn);
}
IStoreFactory sf = new StoreFactory();
return(sf.Get <int, Person>(f.Store, "VirtualCache"));
}
private void ClearLogs()
{
if (LogCollection == null)
{
return;
}
var lc = LogCollection; //).GetLogSequence();
Sop.IFile targetFile = null;
var logsForRemoval = new List <BackupDataLogKey>(lc.Count);
foreach (var de in lc)
{
var key = (BackupDataLogKey)de.Key;
if (targetFile == null || targetFile.Filename != key.SourceFilename)
{
targetFile = Server.GetFile(key.SourceFilename);
}
if (targetFile != null)
{
logsForRemoval.Add(key);
}
}
foreach (BackupDataLogKey k in logsForRemoval)
{
lc.Remove(k);
}
}
/// <summary>
/// Sample code for managing People and their Addresses
/// </summary>
public void Run()
{
Console.WriteLine("{0}: PeopleDirectory demo started...", DateTime.Now);
// create Server (open the data file) and begin a transaction...
using (var Server = new ObjectServer("SopBin\\OServer.dta", true))
{
IStoreFactory sf = new StoreFactory();
PeopleStore = sf.Get <long, Person>(Server.SystemFile.Store, "People");
PeopleStoreByName = sf.Get <PersonKey, long>(Server.SystemFile.Store, "PeopleByName", new PersonComparer());
string AddressFilename = "oFile2";
Sop.IFile f = Server.GetFile(AddressFilename);
if (f == null)
{
f = Server.FileSet.Add(AddressFilename);
}
AddressStore = sf.Get <long, Address>(f.Store, "Addresses");
AddressStoreByAddress = sf.Get <AddressKey, long>(f.Store, "AddressesByAddress", new AddressComparer());
if (PeopleStore.Count == 0)
{
Populate();
}
else
{
Console.WriteLine("Processing {0} records", PeopleStore.Count * 4);
ReadAll();
}
// when code reaches here, 'no exception happened, 'just commit the transaction.
Server.Commit();
} // if error occurred, transaction will be rolled back automatically.
Console.WriteLine("{0}: PeopleDirectory demo ended...", DateTime.Now);
}
/// <summary>
/// Setups and returns the Virtual Cache
/// </summary>
/// <param name="ObjectCacheID"></param>
/// <returns></returns>
public ISortedDictionaryOnDisk GetObjectCache(int ObjectCacheID)
{
Sop.IFile f = null;
string fn = CacheFilename + ObjectCacheID.ToString();
if (server == null)
{
server = Sop.ObjectServer.OpenWithTransaction(string.Format("{0}{1}", ServerPath, ServerFilename),
// memory extender mode will cause SOP data file get deleted upon restart
new Preferences {
MemoryExtenderMode = true
});
}
if (!server.FileSet.Contains(fn))
{
f = server.FileSet.Add(fn);
}
else
{
f = server.FileSet[fn];
}
if (f != null)
{
return(f.Store);
}
return(null);
}
/// <summary>
/// Sample code for managing People and their Addresses
/// </summary>
public void Run()
{
Console.WriteLine("{0}: PeopleDirectory demo started...", DateTime.Now);
IStoreFactory sf = new StoreFactory();
PeopleStore = sf.Get <long, Person>(Server.SystemFile.Store, "People");
PeopleStoreByName = sf.Get <PersonKey, long>(Server.SystemFile.Store, "PeopleByName", new PersonComparer());
string AddressFilename = "oFile2";
Sop.IFile f = Server.GetFile(AddressFilename);
if (f == null)
{
f = Server.FileSet.Add(AddressFilename);
}
AddressStore = sf.Get <long, Address>(f.Store, "Addresses");
AddressStoreByAddress = sf.Get <AddressKey, long>(f.Store, "AddressesByAddress", new AddressComparer());
if (PeopleStore.Count == 0)
{
Populate();
}
else
{
Console.WriteLine("Processing {0} records", PeopleStore.Count * 4);
ReadAll();
}
PeopleStore.Transaction.Commit();
Console.WriteLine("{0}: PeopleDirectory demo ended...", DateTime.Now);
}
/// <summary>
/// Shows how to use two Object Servers with separate transaction for each.
/// </summary>
public static void Run()
{
string CacheFilename = "OFile.dta";
//** ObjectServer1 is to be physically stored in ...\Sop1 folder
string ServerPath1 = "SopBin\\Sop1\\";
//** ObjectServer2 is to be physically stored in ...\Sop2 folder
string ServerPath2 = "SopBin\\Sop2\\";
string ServerFilename = "OServer.dta";
//** create 1st ObjectServer & its transaction
ObjectServer server = Sop.ObjectServer.OpenWithTransaction(string.Format("{0}{1}", ServerPath1, ServerFilename),
new Preferences());
//** create 2nd ObjectServer & its transaction
string ServerFilename2 = "OServer2.dta";
string sfullpath2 = string.Format("{0}{1}", ServerPath2, ServerFilename2);
ObjectServer server2 = Sop.ObjectServer.OpenWithTransaction(sfullpath2);
string fn = string.Format("{0}{1}{2}", ServerPath1, 1, CacheFilename);
string fn2 = string.Format("{0}{1}{2}", ServerPath2, 2, CacheFilename);
Sop.IFile f = server.FileSet[CacheFilename];
if (f == null)
{
f = server.FileSet.Add(CacheFilename, fn);
}
IStoreFactory sf = new StoreFactory();
ISortedDictionary <int, Person>
store = sf.Get <int, Person>(f.Store, "VirtualCache");
Sop.IFile f2 = server2.FileSet[CacheFilename];
if (f2 == null)
{
f2 = server2.FileSet.Add(CacheFilename, fn2);
}
ISortedDictionary <int, Person>
store2 = sf.Get <int, Person>(f2.Store, "VirtualCache");
//** insert records
Console.WriteLine("Start Insertion then Validation of records & their sequence...");
object o = store.Transaction;
object o2 = store2.Transaction;
InsertRecords(store, 20003, "Store1");
ReadRecords(store, 20003, "Store1");
store.Transaction.Rollback();
InsertRecords(store2, 20501, "Store2");
ReadRecords(store2, 20501, "Store2");
store2.Transaction.Rollback();
Console.WriteLine("Done...");
}
public ISortedDictionary <int, T> GetObjectStore <T>(string StoreName, string NameOfFile, string Filename)
where T : new()
{
Sop.IFile f = Server.GetFile(NameOfFile);
if (f == null)
{
f = Server.FileSet.Add(NameOfFile, Filename);
}
IStoreFactory sf = new StoreFactory();
return(sf.Get <int, T>(f.Store, StoreName));
}
/// <summary>
/// Sample code for managing People and their Addresses using the "IPersistent"
/// interface as method to save said objects to SOP DB.
/// NOTE: this yields optimal disk usage as you control up to byte level what
/// info to save. BUT schema (for Person and Address)
/// versioning(not shown) needs to be managed by the application code.
/// Xml Serialized objects has advantage on schema versioning as .Net's
/// Xml Serialization supports versioning built-in. BUT it isn't hard to
/// implement IPersistent schema versioning.
///
/// Also, this demo shows SOP managing about 1 million records (250K records on 4 tables)
/// </summary>
public void Run()
{
Console.WriteLine("{0}: PeopleDirectoryUsingIPersistent demo started...", DateTime.Now);
//"SopBin\\OServer.dta"
using (var Server = new ObjectServer(null,
true, new Profile()
{
BTreeSlotLength = 200
}))
{
IStoreFactory sf = new StoreFactory();
PeopleStore = sf.GetPersistentValue <long, Person>(Server.SystemFile.Store, "People");
PeopleStoreByName = sf.GetPersistentKey <PersonKey, long>(Server.SystemFile.Store, "PeopleByName", new PersonComparer());
string AddressFilename = "oFile2";
Sop.IFile f = Server.GetFile(AddressFilename);
if (f == null)
{
f = Server.FileSet.Add(AddressFilename);
}
AddressStore = sf.GetPersistentValue <long, Address>(f.Store, "Addresses");
AddressStoreByAddress = sf.GetPersistentKey <AddressKey, long>(f.Store, "AddressesByAddress", new AddressComparer());
if (PeopleStore.Count == 0)
{
Populate();
}
else
{
Console.WriteLine("Processing {0} records", PeopleStore.Count * 4);
ReadAll();
}
Server.Commit();
}
Console.WriteLine("{0}: PeopleDirectoryUsingIPersistent demo ended...", DateTime.Now);
}
public virtual Sop.ISortedDictionaryOnDisk CreateCollection(Sop.IFile file, IComparer comparer, string name,
bool isDataInKeySegment)
{
return(OnDisk.ObjectServer.CreateDictionaryOnDisk((OnDisk.File.IFile)file,
comparer, name, isDataInKeySegment));
}
Sop.IFile Sop.IFileSet.Add(Sop.IFile f)
{
return((IFile)this.Add((IFile)f));
}
public bool Contains(Sop.IFile f)
{
return(Contains((Sop.Client.IFile)f));
}
