public void DropAllDatabasesTest()
{
_mongoDatabaseConnection = new DatabaseConnection(_mongoServerConnection, MONGO_DATABASE_1_NAME);
_mongoDatabaseConnection.Connect();
AddMongoEntry(collectionName: MONGO_COLLECTION_1_NAME);// uses MONGO_DATABASE_1_NAME
AddMongoEntry(collectionName: MONGO_COLLECTION_1_NAME);
AddMongoEntry(collectionName: MONGO_COLLECTION_2_NAME);
AddMongoEntry(collectionName: MONGO_COLLECTION_2_NAME);
_mongoDatabaseConnection = new DatabaseConnection(_mongoServerConnection, MONGO_DATABASE_2_NAME);
_mongoDatabaseConnection.Connect();
_reader = new Reader(_mongoDatabaseConnection);
_writer = new Writer(_mongoDatabaseConnection);// need to reinitialize writer when we change the DatabaseConnection
AddMongoEntry(collectionName: MONGO_COLLECTION_1_NAME);// uses MONGO_DATABASE_2_NAME
AddMongoEntry(collectionName: MONGO_COLLECTION_1_NAME);
AddMongoEntry(collectionName: MONGO_COLLECTION_2_NAME);
AddMongoEntry(collectionName: MONGO_COLLECTION_2_NAME);
_mongoDatabaseConnection = new DatabaseConnection(_mongoServerConnection, MONGO_DATABASE_3_NAME);
_mongoDatabaseConnection.Connect();
_reader = new Reader(_mongoDatabaseConnection);
_writer = new Writer(_mongoDatabaseConnection);// need to reinitialize writer when we change the DatabaseConnection
AddMongoEntry(collectionName: MONGO_COLLECTION_1_NAME);// uses MONGO_DATABASE_3_NAME
AddMongoEntry(collectionName: MONGO_COLLECTION_1_NAME);
AddMongoEntry(collectionName: MONGO_COLLECTION_2_NAME);
AddMongoEntry(collectionName: MONGO_COLLECTION_2_NAME);
List<string> results = _mongoServerConnection.GetDbNamesForConnection();
Assert.IsTrue(results.Contains(MONGO_DATABASE_1_NAME));
Assert.IsTrue(results.Contains(MONGO_DATABASE_2_NAME));
Assert.IsTrue(results.Contains(MONGO_DATABASE_3_NAME));
List<CommandResult> commandResults = _mongoServerConnection.DropAllDatabases();
foreach (CommandResult commandResult in commandResults)
{
Assert.IsNotNull(commandResult);
Assert.IsTrue(commandResult.Ok);
Assert.IsNull(commandResult.ErrorMessage);
}
results = _mongoServerConnection.GetDbNamesForConnection();
Assert.IsFalse(results.Contains(MONGO_DATABASE_1_NAME));
Assert.IsFalse(results.Contains(MONGO_DATABASE_2_NAME));
Assert.IsFalse(results.Contains(MONGO_DATABASE_3_NAME));
}
public void DropDatabase1Test()
{
_mongoDatabaseConnection = new DatabaseConnection(_mongoServerConnection, MONGO_DATABASE_1_NAME);
_mongoDatabaseConnection.Connect();
AddMongoEntry(collectionName:MONGO_COLLECTION_1_NAME);// uses MONGO_DATABASE_1_NAME
AddMongoEntry(collectionName: MONGO_COLLECTION_1_NAME);
AddMongoEntry(collectionName: MONGO_COLLECTION_2_NAME);
List<MongoCollection<Entry>> mongoCollections = _mongoDatabaseConnection.GetCollections<Entry>();
Assert.AreEqual(3, mongoCollections.Count());// with system.indexes too
CommandResult commandResult = _mongoServerConnection.DropDatabase(MONGO_DATABASE_1_NAME);
Assert.IsNotNull(commandResult);
Assert.IsTrue(commandResult.Ok);
Assert.IsNull(commandResult.ErrorMessage);
// the collections that we added will be removed with the database drop
mongoCollections = _mongoDatabaseConnection.GetCollections<Entry>();
Assert.AreEqual(0, mongoCollections.Count());
// this is confusing functionality; the MongoDatabase object returned does not actually exist on the server
// but will when it is written against
MongoDatabase mongoDatabase = _mongoServerConnection.GetDatabase(MONGO_DATABASE_1_NAME, _writeConcern);
Assert.IsNotNull(mongoDatabase);
_mongoDatabaseConnection = new DatabaseConnection(_mongoServerConnection, MONGO_DATABASE_2_NAME);
_mongoDatabaseConnection.Connect();
_reader = new Reader(_mongoDatabaseConnection);
_writer = new Writer(_mongoDatabaseConnection);// need to reinitialize writer when we change the DatabaseConnection
AddMongoEntry(collectionName: MONGO_COLLECTION_1_NAME);// uses MONGO_DATABASE_2_NAME
AddMongoEntry(collectionName: MONGO_COLLECTION_1_NAME);
AddMongoEntry(collectionName: MONGO_COLLECTION_2_NAME);
AddMongoEntry(collectionName: MONGO_COLLECTION_2_NAME);
mongoCollections = _mongoDatabaseConnection.GetCollections<Entry>();
Assert.AreEqual(3, mongoCollections.Count());//system.indexes too
commandResult = _mongoServerConnection.DropDatabase(MONGO_DATABASE_2_NAME);
Assert.IsNotNull(commandResult);
Assert.IsTrue(commandResult.Ok);
Assert.IsNull(commandResult.ErrorMessage);
// the collections that we added will be removed with the database drop
mongoCollections = _mongoDatabaseConnection.GetCollections<Entry>();
Assert.AreEqual(0, mongoCollections.Count());
// see comments above
mongoDatabase = _mongoServerConnection.GetDatabase(MONGO_DATABASE_2_NAME, _writeConcern);
Assert.IsNotNull(mongoDatabase);
}
public void GetDatabaseNamesForConnectionTest()
{
List<string> databaseNames = _mongoServerConnection.GetDbNamesForConnection();
Assert.AreEqual(0, databaseNames.Count, "There should be no mongo databases on the server");
_writer.Write(MONGO_COLLECTION_1_NAME, new Entry());//create a db in the process of writing an entry to a child collection
_mongoDatabaseConnection = new DatabaseConnection(_mongoServerConnection, MONGO_DATABASE_2_NAME);
_mongoDatabaseConnection.Connect();
_reader = new Reader(_mongoDatabaseConnection);
_writer = new Writer(_mongoDatabaseConnection);// need to reinitialize writer when we change the DatabaseConnection
_writer.Write(MONGO_COLLECTION_1_NAME, new Entry());//create a db in the process of writing an entry to a child collection
databaseNames = _mongoServerConnection.GetDbNamesForConnection();
Assert.AreEqual(2, databaseNames.Count, "There should be two mongo databases on the server");
Assert.AreEqual(MONGO_DATABASE_1_NAME, databaseNames[0], MONGO_DATABASE_1_NAME + " is missing; was expected to be created");
Assert.AreEqual(MONGO_DATABASE_2_NAME, databaseNames[1], MONGO_DATABASE_2_NAME + " is missing; was expected to be created");
}
public void TestMultiThreadedReadsAndWrites()
{
Mongo db = new Mongo();
db.Connect();
IMongoCollection col = db["tests"]["threadreadinserts"];
List<string> identifiers = new List<string>{"A", "B", "C", "D"};
List<string> colnames = new List<string>{"smallreads", "smallreads", "smallreads", "smallreads"};
List<Thread> threads = new List<Thread>();
List<Reader> readers = new List<Reader>();
int writeiterations = 100;
int readiterations = 50;
foreach(string identifier in identifiers){
Inserter ins = new Inserter {Iterations = writeiterations, Identifier = identifier, Collection = col};
ThreadStart ts = new ThreadStart(ins.DoInserts);
Thread thread = new Thread(ts);
threads.Add(thread);
}
foreach(string colname in colnames){
Reader r = new Reader{Iterations = readiterations, Collection = db["tests"][colname]};
readers.Add(r);
ThreadStart ts = new ThreadStart(r.DoReads);
Thread thread = new Thread(ts);
threads.Add(thread);
}
RunAndWait(threads);
try{
Assert.AreEqual(identifiers.Count * writeiterations, col.Count());
}catch(Exception e){
Assert.Fail(e.Message);
}
foreach(Reader r in readers){
Assert.AreEqual(readiterations, r.Count, "A reader did not read everytime.");
}
}
//[Test]
public void TestMultiThreadedReads()
{
Mongo db = new Mongo();
db.Connect();
List<string> colnames = new List<string>{"smallreads", "smallreads", "smallreads", "smallreads"};
List<Thread> threads = new List<Thread>();
List<Reader> readers = new List<Reader>();
int iterations = 50;
foreach(string colname in colnames){
Reader r = new Reader{Iterations = iterations, Collection = db["tests"][colname]};
readers.Add(r);
ThreadStart ts = new ThreadStart(r.DoReads);
Thread thread = new Thread(ts);
threads.Add(thread);
}
RunAndWait(threads);
try{
//Connection still alive?
db["tests"]["smallreads"].Count();
}catch(Exception e){
Assert.Fail(e.Message);
}
foreach(Reader r in readers){
Assert.AreEqual(iterations, r.Count, "A reader did not read everytime.");
}
}
public async void Test()
{
_databaseConnection.Connect();
/////////////////////////////////////
// OPERATIONAL, CONTEXUAL SCOPE... //
/////////////////////////////////////
// create a Writer to write to the database
IWriter writer = new Writer(_databaseConnection);
// create a Reader to read from the database
IReader reader = new Reader(_databaseConnection);
// create an Updater to update the database
IUpdater updater = new Updater(_databaseConnection);
Entry exampleMongoDBEntry = new Entry();
exampleMongoDBEntry.Message = "Hello";
// write the object to the "MyFirstCollection" Collection that exists within the
// previously referenced "MyFirstDatabase" that was used to create the "writer" object
writer.Write<Entry>("MyFirstCollection", exampleMongoDBEntry);
IEnumerable<Entry> readEntrys = reader.Read<Entry>("MyFirstCollection", // within this collection...
"Message",// for the object field "Description"
"Hello");// return matches for 'Hello'
Assert.AreEqual(1, readEntrys.Count());
////////////////////////////////////
// AND ASYNCHRONOUS OPERATIONS... //
////////////////////////////////////
// read, write and update asynchronously using System.Threading.Task
IAsyncReader asyncReader = new AsyncReader(reader);
readEntrys = await asyncReader.ReadAsync<Entry>("MyFirstCollection", "Message", "Hello");
Assert.AreEqual(1, readEntrys.Count());
IAsyncWriter asyncWriter = new AsyncWriter(writer);
IAsyncUpdater asyncUpdater = new AsyncUpdater(updater);
// or delegate call backs
IAsyncDelegateReader asyncDelegateReader = new AsyncDelegateReader(reader);
asyncDelegateReader.AsyncReadCompleted += new ReadCompletedEvent(readerCallBack);
asyncDelegateReader.ReadAsync<Entry>("MyFirstCollection", "Message", "Hello");
_readerAutoResetEvent.WaitOne();
Assert.AreEqual(1, _asyncReadResults.Count());
IAsyncDelegateWriter asyncDelegateWriter = new AsyncDelegateWriter(writer);
IAsyncDelegateUpdater asyncDelegateUpdater = new AsyncDelegateUpdater(updater);
/////////////////////////////////////////////
// FOR A SERVER, DATABASE OR COLLECTION... //
/////////////////////////////////////////////
// get a little higher level with the EasyMongo.Database namespace to target a database for operations
IDatabaseReader databaseReader = new DatabaseReader(reader, asyncReader);
IDatabaseWriter databaseWriter = new DatabaseWriter(writer, asyncWriter);
IDatabaseUpdater databaseUpdater = new DatabaseUpdater(updater, asyncUpdater);
// or a little lower level with the EasyMongo.Collection namespace to target a specific Collection
ICollectionReader collectionReader = new CollectionReader(databaseReader, "MyFirstCollection");
ICollectionWriter collectionWriter = new CollectionWriter(databaseWriter, "MyFirstCollection");
ICollectionUpdater collectionUpdater = new CollectionUpdater(databaseUpdater, "MyFirstCollection");
///////////////////////////////////////////////
// TO RESTRICT CLIENT SCOPE (LAW OF DEMETER) //
///////////////////////////////////////////////
// operate only against "MyFirstDatabase"'s "MySecondCollection"
readEntrys = collectionReader.Read<Entry>("Message", "Hello");
Assert.AreEqual(1, readEntrys.Count());
/////////////////////
// GENERIC CLASSES //
/////////////////////
// Instead of defining generic type arguments at the method level,
// you can do it once at the class declaration
IWriter<Entry> writerT = new Writer<Entry>(writer);
writerT.Write("MySecondCollection", new Entry() { Message = "Goodbye World (Generically)" });
///////////////////////////////
// SIMPLIFY CREATION VIA IoC //
///////////////////////////////
// because EasyMongo is a componentized framework built with blocks of functionality, EasyMongo
// works great with DI containers and Inversion of Control.
// here's an example of using the nuget Ninject extension to load EasyMongo mappings and a conn
// string from configuration
Ninject.IKernel kernel = new Ninject.StandardKernel();
ICollectionUpdater<Entry> collectionUpdaterT = kernel.TryGet<ICollectionUpdater<Entry>>();
// the alternative to this would be:
IServerConnection serverConn = new ServerConnection(LOCAL_MONGO_SERVER_CONNECTION_STRING);
IDatabaseConnection databaseConnn = new DatabaseConnection(serverConn, "MyFirstDatabase");
IDatabaseUpdater databaseUpdatr = new DatabaseUpdater(updater, asyncUpdater);
ICollectionUpdater collectionUpdaterTheHardWay = new CollectionUpdater(databaseUpdater, "MySecondCollection");
/////////////////////////
// SIMPLE QUERIES... //
/////////////////////////
databaseReader.Read<Entry>("MyFirstCollection", "Message", "Hello");
readEntrys = await databaseReader.ReadAsync<Entry>("MyFirstCollection", "Message", "Hello");
Assert.AreEqual(1, readEntrys.Count());
/////////////////////////
// POWERFUL QUERIES... //
/////////////////////////
// when more robust querying is needed leverage power of underlying MongoDB driver IMongoQuery
IMongoQuery query1 = Query.Matches("Message", new BsonRegularExpression("HE", "i"));
IEnumerable<Entry> queryResults = reader.Execute<Entry>("MyFirstCollection", query1);
Assert.AreEqual(1, queryResults.Count());
Assert.AreEqual("Hello", queryResults.ElementAt(0).Message);
//////////////////////
// AND COMBINATIONS //
//////////////////////
Entry exampleMongoDBEntry2 = new Entry();
exampleMongoDBEntry2.Message = "Hello Again";
Entry exampleMongoDBEntry3 = new Entry();
exampleMongoDBEntry3.Message = "Goodbye";
writer.Write<Entry>("MyFirstCollection", exampleMongoDBEntry2);
writer.Write<Entry>("MyFirstCollection", exampleMongoDBEntry3);
// "AND" multiple IMongoQueries...
IMongoQuery query2 = Query.Matches("Message", new BsonRegularExpression("Again"));
queryResults = reader.ExecuteAnds<Entry>("MyFirstCollection", new []{ query1, query2});
Assert.AreEqual(1, queryResults.Count());
Assert.AreEqual("Hello Again", queryResults.ElementAt(0).Message);
// "OR" multiple IMongoQueries...
IMongoQuery query3 = Query.Matches("Message", new BsonRegularExpression("Goo"));
queryResults = reader.ExecuteOrs<Entry>("MyFirstCollection", new[] { query1, query2, query3 });
Assert.AreEqual(3, queryResults.Count());
Assert.AreEqual("Hello", queryResults.ElementAt(0).Message);
Assert.AreEqual("Hello Again", queryResults.ElementAt(1).Message);
Assert.AreEqual("Goodbye", queryResults.ElementAt(2).Message);
}
public void AsynchronousTest6()
{
_mongoServerConnection = new ServerConnection(MONGO_CONNECTION_STRING_BAD);/**/
_mongoDatabaseConnection = new DatabaseConnection(_mongoServerConnection, MONGO_DATABASE_1_NAME);
// testBase class receives the connection call back after the asynch connection occurs
_mongoServerConnection.ConnectAsyncDelegate(_mongoServerConnection_Connected);
_mongoDatabaseConnection.ConnectAsyncDelegate(_mongoDatabaseConnection_Connected);
// once the async operation completes, because the connection string is bad, there is no connection
// -- attempting to use the connection results in a MongoConnectionException
MongoCollection<Entry> collection = _mongoDatabaseConnection.GetCollection<Entry>(MONGO_COLLECTION_1_NAME);
}
[Test]
public void AsynchronousTest7()
{
//System.Diagnostics.Debugger.Launch();
_mongoServerConnection = new ServerConnection(MONGO_CONNECTION_STRING);
_mongoDatabaseConnection = new DatabaseConnection(_mongoServerConnection, MONGO_DATABASE_1_NAME);
// testBase class receives the connection call back after the asynch connection occurs
_mongoServerConnection.ConnectAsyncDelegate(_mongoServerConnection_Connected);
_mongoDatabaseConnection.ConnectAsyncDelegate(_mongoDatabaseConnection_Connected);
_databaseConnectionAutoResetEvent.WaitOne();
MongoCollection<Entry> collection = _mongoDatabaseConnection.GetCollection<Entry>(MONGO_COLLECTION_1_NAME);
Assert.AreEqual(MongoServerState.Connected, _mongoDatabaseConnection.State);
Assert.AreEqual(0, collection.Count());
_mongoServerConnection.ConnectAsyncDelegate(_mongoServerConnection_Connected);
_mongoDatabaseConnection.ConnectAsyncDelegate(_mongoDatabaseConnection_Connected);
_databaseConnectionAutoResetEvent.WaitOne();
collection = _mongoDatabaseConnection.GetCollection<Entry>(MONGO_COLLECTION_1_NAME);
Assert.AreEqual(MongoServerState.Connected, _mongoDatabaseConnection.State);
Assert.AreEqual(0, collection.Count());
}
[Test]
public void AsynchronousTest8()
{
//System.Diagnostics.Debugger.Launch();
_mongoServerConnection = new ServerConnection(MONGO_CONNECTION_STRING);
_mongoDatabaseConnection = new DatabaseConnection(_mongoServerConnection, MONGO_DATABASE_1_NAME);
// testBase class receives the connection call back after the asynch connection occurs
_mongoServerConnection.ConnectAsyncDelegate(_mongoServerConnection_Connected);
_mongoDatabaseConnection.ConnectAsyncDelegate(_mongoDatabaseConnection_Connected);
_databaseConnectionAutoResetEvent.WaitOne();
MongoCollection<Entry> collection = _mongoDatabaseConnection.GetCollection<Entry>(MONGO_COLLECTION_1_NAME);
Assert.AreEqual(MongoServerState.Connected, _mongoDatabaseConnection.State);
Assert.AreEqual(0, collection.Count());
_mongoServerConnection.Connect();
_mongoDatabaseConnection.Connect();
collection = _mongoDatabaseConnection.GetCollection<Entry>(MONGO_COLLECTION_1_NAME);
Assert.AreEqual(MongoServerState.Connected, _mongoDatabaseConnection.State);
Assert.AreEqual(0, collection.Count());
_mongoServerConnection.Connect();
_mongoDatabaseConnection.Connect();
_mongoServerConnection.ConnectAsyncDelegate(_mongoServerConnection_Connected);
_mongoDatabaseConnection.ConnectAsyncDelegate(_mongoDatabaseConnection_Connected);
_mongoServerConnection.Connect();
_mongoDatabaseConnection.Connect();
_mongoServerConnection.ConnectAsyncDelegate(_mongoServerConnection_Connected);
_mongoDatabaseConnection.ConnectAsyncDelegate(_mongoDatabaseConnection_Connected);
_databaseConnectionAutoResetEvent.WaitOne();
collection = _mongoDatabaseConnection.GetCollection<Entry>(MONGO_COLLECTION_1_NAME);
Assert.AreEqual(MongoServerState.Connected, _mongoDatabaseConnection.State);
Assert.AreEqual(0, collection.Count());
}
[Test]
public void Asynchronous_DependentProcesses1()
{
//System.Diagnostics.Debugger.Launch();
string entryMessage = "Hello World";
AddMongoEntry(message: entryMessage);
// create our asynchronous server connection
_mongoServerConnection = new ServerConnection(MONGO_CONNECTION_STRING);
_mongoDatabaseConnection = new DatabaseConnection(_mongoServerConnection, MONGO_DATABASE_1_NAME);
//_asyncReader = new Reader(_mongoDatabaseConnection);
//_asyncDelegateReader = new AsyncDelegateReader(_asyncReader);
//_asyncDelegateReader.AsyncReadCompleted += new ReadCompletedEvent(_readerAsync_AsyncReadCompleted);
// testBase class receives the connection call back after the asynch connection occurs
_mongoServerConnection.ConnectAsyncDelegate(_mongoServerConnection_Connected);
_mongoDatabaseConnection.ConnectAsyncDelegate(_mongoDatabaseConnection_Connected);
// this call doesn't wait for asynchronous connection to complete
_asyncDelegateReader.ReadAsync<Entry>(MONGO_COLLECTION_1_NAME, "Message", entryMessage);
_readerAutoResetEvent.WaitOne();// wait for async read to return
Assert.AreEqual(1, _asyncReadResults.Count());
Assert.AreEqual(entryMessage, _asyncReadResults[0].Message);
}
// no thread wait for asynchronous call to complete
[Test]
public void Asynchronous_GetInsertedTest1()
{
string entryMessage = "Hello World";
AddMongoEntry(message: entryMessage);
_mongoDatabaseConnection.ConnectAsyncDelegate(_mongoDatabaseConnection_Connected);// asynchronous connection
_databaseConnectionAutoResetEvent.WaitOne(); // pause here until the asyncConnection completes to allow for linear testability
Assert.AreEqual(_databaseConnectionResult, ConnectionResult.Success);/**/
Assert.AreEqual(_mongoDatabaseConnection.State, MongoServerState.Connected);
Assert.IsNotNull(_serverConnectionReturnMessage);
Assert.IsNotNull(_databaseConnectionReturnMessage);
_reader = new Reader(_mongoDatabaseConnection);
// this call doesn't wait for asynchronous connection to finish
_results.AddRange(_reader.Read<Entry>(MONGO_COLLECTION_1_NAME, "Message", entryMessage, "TimeStamp", _beforeTest, DateTime.Now));
Assert.AreEqual(1, _results.Count());
}
