tweak database configuration name to ‘DatabaseName’

src/DotNetCore.CAP.MongoDB/CAP.MongoDBOptions.cs

@@ -5,16 +5,30 @@ namespace DotNetCore.CAP.MongoDB
 {
     public class MongoDBOptions
     {
-        public const string DefaultDatabase = "Cap";
+        /// <summary>
+        /// Gets or sets the database name to use when creating database objects.
+        /// Default value: "cap"
+        /// </summary>
+        public string DatabaseName { get; set; } = "cap";
 
         /// <summary>
-        /// Gets or sets the database to use when creating database objects.
-        /// Default is <see cref="DefaultDatabase" />.
+        /// MongoDB database connection string.
+        /// Default value: "mongodb://localhost:27017"
         /// </summary>
-        public string Database { get; set; } = DefaultDatabase;
+        public string DatabaseConnection { get; set; } = "mongodb://localhost:27017";
 
-        public string ReceivedCollection { get; } = "Received";
+        /// <summary>
+        /// MongoDB received message collection name.
+        /// Default value: "received"
+        /// </summary>
+        public string ReceivedCollection { get; set; } = "cap.received";
+
+        /// <summary>
+        /// MongoDB published message collection name.
+        /// Default value: "published"
+        /// </summary>
+        public string PublishedCollection { get; set; } = "cap.published";
 
-        public string PublishedCollection { get; } = "Published";
+        internal const string CounterCollection = "cap.counter";
     }
 }
\ No newline at end of file

src/DotNetCore.CAP.MongoDB/CapPublisher.cs

@@ -28,7 +28,7 @@ namespace DotNetCore.CAP.MongoDB
             : base(logger, dispatcher)
         {
             _options = options;
-            _database = client.GetDatabase(_options.Database);
+            _database = client.GetDatabase(_options.DatabaseName);
             ServiceProvider = provider;
         }
 

src/DotNetCore.CAP.MongoDB/MongoDBCollectProcessor.cs

@@ -23,13 +23,13 @@ namespace DotNetCore.CAP.MongoDB
         {
             _options = options;
             _logger = logger;
-            _database = client.GetDatabase(_options.Database);
+            _database = client.GetDatabase(_options.DatabaseName);
         }
 
         public async Task ProcessAsync(ProcessingContext context)
         {
             _logger.LogDebug(
-                $"Collecting expired data from collection [{_options.Database}].[{_options.PublishedCollection}].");
+                $"Collecting expired data from collection [{_options.PublishedCollection}].");
 
             var publishedCollection = _database.GetCollection<CapPublishedMessage>(_options.PublishedCollection);
             var receivedCollection = _database.GetCollection<CapReceivedMessage>(_options.ReceivedCollection);

src/DotNetCore.CAP.MongoDB/MongoDBMonitoringApi.cs

@@ -22,7 +22,7 @@ namespace DotNetCore.CAP.MongoDB
             var mongoClient = client ?? throw new ArgumentNullException(nameof(client));
             _options = options ?? throw new ArgumentNullException(nameof(options));
 
-            _database = mongoClient.GetDatabase(_options.Database);
+            _database = mongoClient.GetDatabase(_options.DatabaseName);
         }
 
         public StatisticsDto GetStatistics()

src/DotNetCore.CAP.MongoDB/MongoDBStorage.cs

@@ -46,7 +46,7 @@ namespace DotNetCore.CAP.MongoDB
                 return;
             }
 
-            var database = _client.GetDatabase(_options.Database);
+            var database = _client.GetDatabase(_options.DatabaseName);
             var names = (await database.ListCollectionNamesAsync(cancellationToken: cancellationToken))?.ToList();
 
             if (!names.Any(n => n == _options.ReceivedCollection))
@@ -60,10 +60,10 @@ namespace DotNetCore.CAP.MongoDB
                     cancellationToken: cancellationToken);
             }
 
-            if (names.All(n => n != "Counter"))
+            if (names.All(n => n != MongoDBOptions.CounterCollection))
             {
-                await database.CreateCollectionAsync("Counter", cancellationToken: cancellationToken);
-                var collection = database.GetCollection<BsonDocument>("Counter");
+                await database.CreateCollectionAsync(MongoDBOptions.CounterCollection, cancellationToken: cancellationToken);
+                var collection = database.GetCollection<BsonDocument>(MongoDBOptions.CounterCollection);
                 await collection.InsertManyAsync(new[]
                 {
                     new BsonDocument {{"_id", _options.PublishedCollection}, {"sequence_value", 0}},

src/DotNetCore.CAP.MongoDB/MongoDBStorageConnection.cs

@@ -22,7 +22,7 @@ namespace DotNetCore.CAP.MongoDB
             _capOptions = capOptions;
             _options = options;
             _client = client;
-            _database = _client.GetDatabase(_options.Database);
+            _database = _client.GetDatabase(_options.DatabaseName);
         }
 
         public bool ChangePublishedState(int messageId, string state)

src/DotNetCore.CAP.MongoDB/MongoDBStorageTransaction.cs

@@ -17,7 +17,7 @@ namespace DotNetCore.CAP.MongoDB
         public MongoDBStorageTransaction(IMongoClient client, MongoDBOptions options)
         {
             _options = options;
-            _database = client.GetDatabase(options.Database);
+            _database = client.GetDatabase(options.DatabaseName);
             _session = client.StartSession();
             _session.StartTransaction();
         }

src/DotNetCore.CAP.MongoDB/MongoDBUtil.cs

@@ -19,10 +19,10 @@ namespace DotNetCore.CAP.MongoDB
             IClientSessionHandle session = null)
         {
             //https://www.tutorialspoint.com/mongodb/mongodb_autoincrement_sequence.htm
-            var collection = database.GetCollection<BsonDocument>("Counter");
+            var collection = database.GetCollection<BsonDocument>(MongoDBOptions.CounterCollection);
 
             var updateDef = Builders<BsonDocument>.Update.Inc("sequence_value", 1);
-            var filter = new BsonDocument {{"_id", collectionName}};
+            var filter = new BsonDocument { { "_id", collectionName } };
 
             BsonDocument result;
             if (session == null)
@@ -45,9 +45,9 @@ namespace DotNetCore.CAP.MongoDB
         public int GetNextSequenceValue(IMongoDatabase database, string collectionName,
             IClientSessionHandle session = null)
         {
-            var collection = database.GetCollection<BsonDocument>("Counter");
+            var collection = database.GetCollection<BsonDocument>(MongoDBOptions.CounterCollection);
 
-            var filter = new BsonDocument {{"_id", collectionName}};
+            var filter = new BsonDocument { { "_id", collectionName } };
             var updateDef = Builders<BsonDocument>.Update.Inc("sequence_value", 1);
 
             var result = session == null