public bool CollectionExists(string collectionName)
{
var filter = new BsonDocument("name", collectionName);
var options = new ListCollectionNamesOptions {
Filter = filter
};
return(database.ListCollectionNames(options).Any());
}
private bool CollectionExists()
{
var filter = new BsonDocument("name", _collectionName);
var options = new ListCollectionNamesOptions {
Filter = filter
};
return(_database.ListCollectionNames(options).Any());
}
public static async Task <bool> CollectionExistsAsync(this IMongoDatabase database, string collectionName)
{
var options = new ListCollectionNamesOptions
{
Filter = new BsonDocument("name", collectionName)
};
return((await database.ListCollectionNamesAsync(options)).Any());
}
private bool CheckIfCollectionExists(IMongoDatabase database, string collectionName)
{
var nameFilter = new BsonDocument("name", collectionName);
var options = new ListCollectionNamesOptions {
Filter = nameFilter
};
return(database.ListCollectionNames(options).Any());
}
private bool TableExists(string _TableName)
{
var filter = new BsonDocument("name", _TableName);
var options = new ListCollectionNamesOptions {
Filter = filter
};
return(MongoDB.ListCollectionNames(options).Any());
}
public static IMongoCollection <T> CriarCollection <T>(this IMongoDatabase database)
{
var filtro = new ListCollectionNamesOptions {
Filter = Builders <BsonDocument> .Filter.Eq("name", typeof(T).Name)
};
if (!database.ListCollectionNames(filtro).Any())
{
database.CreateCollection(typeof(T).Name);
}
return(database.GetCollection <T>(typeof(T).Name));
}
public static async Task <bool> CollectionExistsAsync(this IMongoDatabase database, string collectionName,
CancellationToken ct = default)
{
var options = new ListCollectionNamesOptions
{
Filter = new BsonDocument("name", collectionName)
};
var collections = await database.ListCollectionNamesAsync(options, ct);
return(await collections.AnyAsync(ct));
}
// <summary>
/// Initializes the collection and the unique indexes.
/// </summary>
private void CreateCollectionIfNeeded()
{
var productFilter = new ListCollectionNamesOptions
{
Filter = Builders <BsonDocument> .Filter.Eq("name", CollectionName)
};
if (!MongoDatabase.ListCollectionNames(_session, productFilter).Any())
{
MongoDatabase.CreateCollection(_session, CollectionName);
}
}
protected virtual void CreateCollectionIfNotExists(AbpMongoDbContext dbContext, string collectionName)
{
var filter = new BsonDocument("name", collectionName);
var options = new ListCollectionNamesOptions {
Filter = filter
};
if (!dbContext.Database.ListCollectionNames(options).Any())
{
dbContext.Database.CreateCollection(collectionName);
}
}
private IMongoCollection <MessageOutboxEntity> CreateCollectionIfNotExists(IMongoDatabase database, string collectionName)
{
var filter = new BsonDocument("name", collectionName);
var options = new ListCollectionNamesOptions {
Filter = filter
};
if (!database.ListCollectionNames(options).Any())
{
database.CreateCollection(collectionName);
}
return(database.GetCollection <MessageOutboxEntity>(collectionName));
}
private static async Task <DeleteResult> DeleteCascadingAsync <T>(
IEnumerable <string> IDs,
IClientSessionHandle session = null,
CancellationToken cancellation = default) where T : IEntity
{
// note: cancellation should not be enabled outside of transactions because multiple collections are involved
// and premature cancellation could cause data inconsistencies.
// i.e. don't pass the cancellation token to delete methods below that don't take a session.
// also make consumers call ThrowIfCancellationNotSupported() before calling this method.
var db = Database <T>();
var options = new ListCollectionNamesOptions
{
Filter = "{$and:[{name:/~/},{name:/" + CollectionName <T>() + "/}]}"
};
var tasks = new List <Task>();
// note: db.listCollections() mongo command does not support transactions.
// so don't add session support here.
var collNamesCursor = await db.ListCollectionNamesAsync(options, cancellation).ConfigureAwait(false);
foreach (var cName in await collNamesCursor.ToListAsync(cancellation).ConfigureAwait(false))
{
tasks.Add(
session == null
? db.GetCollection <JoinRecord>(cName).DeleteManyAsync(r => IDs.Contains(r.ChildID) || IDs.Contains(r.ParentID))
: db.GetCollection <JoinRecord>(cName).DeleteManyAsync(session, r => IDs.Contains(r.ChildID) || IDs.Contains(r.ParentID), null, cancellation));
}
var delResTask =
session == null
? Collection <T>().DeleteManyAsync(x => IDs.Contains(x.ID))
: Collection <T>().DeleteManyAsync(session, x => IDs.Contains(x.ID), null, cancellation);
tasks.Add(delResTask);
if (typeof(T).BaseType == typeof(FileEntity))
{
tasks.Add(
session == null
? db.GetCollection <FileChunk>(CollectionName <FileChunk>()).DeleteManyAsync(x => IDs.Contains(x.FileID))
: db.GetCollection <FileChunk>(CollectionName <FileChunk>()).DeleteManyAsync(session, x => IDs.Contains(x.FileID), null, cancellation));
}
await Task.WhenAll(tasks).ConfigureAwait(false);
return(await delResTask.ConfigureAwait(false));
}
public bool CollectionExists(string collectionName)
{
try
{
var filter = new BsonDocument("name", collectionName);
var options = new ListCollectionNamesOptions {
Filter = filter
};
return(MongoDatabase.ListCollectionNames(options).Any());
}
catch (Exception)
{
throw new Exception("Could not check that MongoDB Collection: " + collectionName + " exists");
}
}
public async void CreateCollAsync(string name)
{
var filter = new BsonDocument(name: "name", value: name);
var options = new ListCollectionNamesOptions {
Filter = filter
};
var col = await MongoDatabase.ListCollectionNamesAsync(options);
var any = await col.AnyAsync();
if (!any)
{
await MongoDatabase.CreateCollectionAsync(name : name);
_logger.LogInformation($"--- Create collection with name \"{name}\"");
}
}
public static async Task CreateCollectionIfNotExists(
this IMongoDatabase database,
string name,
CreateCollectionOptions?options = null,
CancellationToken cancellationToken = default)
{
var filter = new ListCollectionNamesOptions {
Filter = new BsonDocument("name", name)
};
bool dbExists = await(await database.ListCollectionNamesAsync(filter, cancellationToken))
.AnyAsync(cancellationToken: cancellationToken);
if (!dbExists)
{
await database.CreateCollectionAsync(name, options, cancellationToken);
}
}
public BlogsService(IDatabaseSettings settings)
{
var client = new MongoClient(settings.ConnectionString);
var database = client.GetDatabase(settings.Database);
var filter = new BsonDocument("name", "BlogsCollection");
var options = new ListCollectionNamesOptions {
Filter = filter
};
bool collectionExist = database.ListCollectionNames(options).Any();
if (!collectionExist)
{
database.CreateCollection("BlogsCollection");
}
_blogs = database.GetCollection <BlogCollection>("BlogsCollection");
}
private Lazy <IMongoCollection <TEntity> > CreateCollection()
{
return(new Lazy <IMongoCollection <TEntity> >(() =>
{
var collectionFilter = new ListCollectionNamesOptions
{
Filter = Builders <BsonDocument> .Filter.Eq("name", CollectionName())
};
if (!mongoDatabase.ListCollectionNames(collectionFilter).Any())
{
mongoDatabase.CreateCollection(CollectionName());
}
var databaseCollection = mongoDatabase.GetCollection <TEntity>(
CollectionName(),
CollectionSettings() ?? new MongoCollectionSettings());
if (this.createShardKey)
{
try
{
Database.RunCommand <BsonDocument>(new BsonDocument
{
["key"] = new BsonDocument
{
["_id"] = "hashed"
},
["shardCollection"] = $"{mongoDatabase.DatabaseNamespace.DatabaseName}.{CollectionName()}"
});
}
catch (MongoException)
{
// Shared key probably created already.
}
}
SetupCollection(databaseCollection);
return databaseCollection;
}));
}
public Startup(IConfiguration configuration)
{
Configuration = configuration;
// task to check if DB collection exists, if not create create and populate with CSV data
try
{
var collectionName = configuration["CapstoneDatabaseSettings:Collections:0"];
var client = new MongoClient(configuration["CapstoneDatabaseSettings:ConnectionString"]);
var db = client.GetDatabase(configuration["CapstoneDatabaseSettings:DatabaseName"]);
var filter = new BsonDocument("name", collectionName);
var options = new ListCollectionNamesOptions {
Filter = filter
};
// collection DNE
if (!db.ListCollectionNames(options).Any())
{
db.CreateCollection(collectionName);
}
var airportsCollection = db.GetCollection <Site>(collectionName);
// no documents in collection or CLI flag was passed
if (airportsCollection.AsQueryable().Count() < 1 || configuration["mongodb:force"] == "true")
{
System.Console.WriteLine("===Inserting data from \"./data/airports.json\" into MongoDB collection===");
// TODO: possibly make this task async
string jsonTxt = File.ReadAllText("./data/airports.json", Encoding.UTF8);
var records = JsonConvert.DeserializeObject <List <Site> >(jsonTxt);
airportsCollection.InsertMany(records);
}
}
catch (Exception e)
{
System.Console.WriteLine(e);
System.Environment.Exit(-1);
}
}
protected virtual void CreateCollectionIfNotExists(string collectionName)
{
var stopwatch = Logger.StartStopwatch();
Logger.LogInformation("Start CreateCollectionIfNotExists with collection name {collectionName}", collectionName);
var filter = new BsonDocument("name", collectionName);
var options = new ListCollectionNamesOptions {
Filter = filter
};
if (!Database.ListCollectionNames(options).Any())
{
Database.CreateCollection(collectionName);
}
stopwatch?.Stop();
Logger.LogInformation("End CreateCollectionIfNotExists, elapsed time: {elapsedTime}", Logger.GetElapsedTime(stopwatch));
stopwatch = null;
}
private static async Task <DeleteResult> DeleteCascadingAsync <T>(IEnumerable <string> IDs, IClientSessionHandle session = null) where T : IEntity
{
// note: cancellation should not be enabled because multiple collections are involved
// and premature cancellation could cause data inconsistencies.
var db = Database <T>();
var options = new ListCollectionNamesOptions
{
Filter = "{$and:[{name:/~/},{name:/" + CollectionName <T>() + "/}]}"
};
var tasks = new HashSet <Task>();
foreach (var cName in await db.ListCollectionNames(options).ToListAsync().ConfigureAwait(false))
{
tasks.Add(
session == null
? db.GetCollection <JoinRecord>(cName).DeleteManyAsync(r => IDs.Contains(r.ChildID) || IDs.Contains(r.ParentID))
: db.GetCollection <JoinRecord>(cName).DeleteManyAsync(session, r => IDs.Contains(r.ChildID) || IDs.Contains(r.ParentID), null));
}
var delResTask =
session == null
? Collection <T>().DeleteManyAsync(x => IDs.Contains(x.ID))
: Collection <T>().DeleteManyAsync(session, x => IDs.Contains(x.ID), null);
tasks.Add(delResTask);
if (typeof(T).BaseType == typeof(FileEntity))
{
tasks.Add(
session == null
? db.GetCollection <FileChunk>(CollectionName <FileChunk>()).DeleteManyAsync(x => IDs.Contains(x.FileID))
: db.GetCollection <FileChunk>(CollectionName <FileChunk>()).DeleteManyAsync(session, x => IDs.Contains(x.FileID), null));
}
await Task.WhenAll(tasks).ConfigureAwait(false);
return(await delResTask.ConfigureAwait(false));
}
public static async void CreateCollection(string name)
{
var filter = new BsonDocument("name", name);
var options = new ListCollectionNamesOptions {
Filter = filter
};
if ((await database.ListCollectionNamesAsync(options)).Any() == false)
{
await database.CreateCollectionAsync(name);
var collection = database.GetCollection <Record>(name);
var indexOptions = new CreateIndexOptions()
{
Unique = true
};
var collectionBuidler = Builders <Record> .IndexKeys;
var indexModel = new CreateIndexModel <Record>(collectionBuidler.Ascending(x => x.key), indexOptions);
await collection.Indexes.CreateOneAsync(indexModel);
}
}
private async Task InitializeCollection(CancellationToken cancellationToken)
{
var options = new ListCollectionNamesOptions();
options.Filter = Builders <BsonDocument> .Filter
.Where(e => e["name"] == _collection);
var collectionNamesCursor = await _database.ListCollectionNamesAsync(options, cancellationToken);
var collectionName = await collectionNamesCursor.FirstOrDefaultAsync(cancellationToken);
if (collectionName == null)
{
_logger?.LogDebug($"Creating collection `{_collection}`...");
await _database.CreateCollectionAsync(_collection, cancellationToken : cancellationToken);
_logger?.LogDebug($"Collection `{_collection}` created successfully");
}
else
{
_logger?.LogTrace($"Collection `{_collection}` already exists");
}
}
protected virtual async Task CreateCollectionIfNotExistsAsync(string collectionName,
CancellationToken cancellationToken = default)
{
var stopwatch = Logger.StartStopwatch();
Logger.LogInformation("Start CreateCollectionIfNotExistsAsync with collection name {collectionName}",
collectionName);
var filter = new BsonDocument("name", collectionName);
var options = new ListCollectionNamesOptions {
Filter = filter
};
var result = await Database.ListCollectionNamesAsync(options, cancellationToken);
if (!await result.AnyAsync(cancellationToken: cancellationToken))
{
await Database.CreateCollectionAsync(collectionName, cancellationToken : cancellationToken);
}
stopwatch?.Stop();
Logger.LogInformation("End CreateCollectionIfNotExistsAsync, elapsed time: {elapsedTime}", Logger.GetElapsedTime(stopwatch));
stopwatch = null;
}
public Task <IAsyncCursor <string> > ListCollectionNamesAsync(IClientSessionHandle session, ListCollectionNamesOptions options = null, CancellationToken cancellationToken = default) => null;
public Task <IAsyncCursor <string> > ListCollectionNamesAsync(ListCollectionNamesOptions options = null, CancellationToken cancellationToken = default) => null;
public static bool CheckForKeyDBAndSeed()
{
_mongoClient = new MongoClient("mongodb+srv://Steph:[email protected]/");
_mongoDatabase = _mongoClient.GetDatabase("KittenKeyDb");
var collection = _mongoDatabase.GetCollection <UniqueKeyDto>("KittenKeyDb");
var count = collection.CountDocumentsAsync(new BsonDocument()).Result;
//exit if database is already present and populated
if (count == _amount + 1)
{
return(true);
}
else
{
//to create the mongodb database and collection you must insert a record.
var testKey = new UniqueKeyDto()
{
InUse = true,
UniqueKey = "testKey"
};
var testRecord = collection.Find(u => u.UniqueKey == testKey.UniqueKey).ToList();
//this will create the collection
if (testRecord.Count == 0)
{
collection.InsertOne(testKey);
}
var filter = new BsonDocument("name", "KittenKeyDb");
var options = new ListCollectionNamesOptions {
Filter = filter
};
var collectionExists = _mongoDatabase.ListCollectionNames(options).Any();
//exit if the program has failed
if (!collectionExists)
{
return(false);
}
else
{
_chars = _uniqueKeyCharSet.ToCharArray();
_listUniqueStrings = new List <string>();
var createPasswordsForDatabase = CreatePasswordsForKeyDb();
//if the number of passwords is not what we have set it to exit
if (!(_listUniqueStrings.Count == _amount))
{
return(false);
}
else
{
var passwords = GetUniqueKeyDtoList();
try
{
collection.InsertMany(passwords);
}
catch (Exception ex)
{
ex.ToString();
}
}
return(false);
}
}
}
public Task <IAsyncCursor <string> > ListCollectionNamesAsync(IClientSessionHandle session, ListCollectionNamesOptions options = null, CancellationToken cancellationToken = default(CancellationToken))
{
return(Task.FromResult(ListCollectionNames(session, options, cancellationToken)));
}
public Task <IAsyncCursor <string> > ListCollectionNamesAsync(ListCollectionNamesOptions options = null, CancellationToken cancellationToken = default(CancellationToken))
{
return(Task.FromResult(ListCollectionNames(options, cancellationToken)));
}
public IAsyncCursor <string> ListCollectionNames(IClientSessionHandle session, ListCollectionNamesOptions options = null, CancellationToken cancellationToken = default(CancellationToken))
{
return(ListCollectionNames(options, cancellationToken));
}
public IAsyncCursor <string> ListCollectionNames(ListCollectionNamesOptions options = null, CancellationToken cancellationToken = default(CancellationToken))
{
return(new FakeAsyncCursor <string>(collections.Keys.ToArray()));
}
public Task <IAsyncCursor <string> > ListCollectionNamesAsync(ListCollectionNamesOptions options = null, CancellationToken cancellationToken = default) => _database.ListCollectionNamesAsync(_getSession(), options, cancellationToken);
