Esempio n. 1
0
        /// <summary>
        /// Get all database information
        /// </summary>
        public BsonObject GetDatabaseInfo()
        {
            this.Transaction.AvoidDirtyRead();

            var info  = new BsonObject();
            var param = new BsonObject();

            info["filename"]     = this.ConnectionString.Filename;
            info["journal"]      = this.ConnectionString.JournalEnabled;
            info["timeout"]      = this.ConnectionString.Timeout.TotalSeconds;
            info["version"]      = this.Cache.Header.UserVersion;
            info["changeID"]     = this.Cache.Header.ChangeID;
            info["fileLength"]   = (this.Cache.Header.LastPageID + 1) * BasePage.PAGE_SIZE;
            info["lastPageID"]   = this.Cache.Header.LastPageID;
            info["pagesInCache"] = this.Cache.PagesInCache;
            info["dirtyPages"]   = this.Cache.GetDirtyPages().Count();

            // parameters info
            param[MAX_FILE_LENGTH]          = this.Cache.Header.MaxFileLength == long.MaxValue ? BsonValue.Null : new BsonValue(this.Cache.Header.MaxFileLength);
            param[INDEX_IGNORE_CASE]        = true;
            param[INDEX_WHITESPACE_TO_NULL] = true;

            info["parameters"] = param;

            return(info);
        }
Esempio n. 2
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        internal FileEntry(LiteEngine engine, BsonDocument doc)
        {
            _engine = engine;

            this.Id         = doc.Id.ToString();
            this.Filename   = doc["filename"].AsString;
            this.MimeType   = doc["mimeType"].AsString;
            this.Length     = doc["length"].AsLong;
            this.UploadDate = doc["uploadDate"].AsDateTime;
            this.Metadata   = doc["metadata"].AsObject;
        }
Esempio n. 3
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        public BsonObject Stats()
        {
            _engine.Transaction.AvoidDirtyRead();

            var col = this.GetCollectionPage(false);

            if (col == null)
            {
                return(new BsonObject());
            }

            var stats = new BsonObject();

            stats["name"]      = col.CollectionName;
            stats["documents"] = col.DocumentCount;

            //TODO: Não tenho como fazer de forma eficiente.
            //  Não tenho um link de todas as paginas de uma mesma colecao
            //  Somente quando implementar os Drop/DropCollection corretos vou conseguir isso
            //

            // db.collection.dataSize(): data size in bytes for the collection.
            // db.collection.storageSize(): allocation size in bytes, including unused space.
            // db.collection.totalSize(): the data size plus the index size in bytes.
            // db.collection.totalIndexSize(): the index size in bytes.


            // indexes
            stats["indexes"] = new BsonArray();

            for (var i = 0; i < col.Indexes.Length; i++)
            {
                var index = col.Indexes[i];

                if (index.IsEmpty)
                {
                    continue;
                }

                var idx = new BsonObject();
                idx["field"]  = index.Field;
                idx["unique"] = index.Unique;

                //     nullCount
                //     avg key size
                //     % (0.00-1.00) distinct > quanto mais proximo do 1 melhor, mais seletivo


                stats["indexes"].AsArray.Add(idx);
            }

            return(stats);
        }
Esempio n. 4
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        public FileEntry(string id, string filename)
        {
            if (!Regex.IsMatch(id, ID_PATTERN))
            {
                throw new LiteException("Invalid file id format.");
            }

            this.Id         = id;
            this.Filename   = Path.GetFileName(filename);
            this.MimeType   = MimeTypeConverter.GetMimeType(this.Filename);
            this.Length     = 0;
            this.UploadDate = DateTime.Now;
            this.Metadata   = new BsonObject();
        }
Esempio n. 5
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        /// <summary>
        /// Get all database information
        /// </summary>
        public BsonObject GetDatabaseInfo()
        {
            this.Transaction.AvoidDirtyRead();

            var info = new BsonObject();

            info["filename"]     = this.ConnectionString.Filename;
            info["journal"]      = this.ConnectionString.JournalEnabled;
            info["timeout"]      = this.ConnectionString.Timeout.TotalSeconds;
            info["version"]      = this.Cache.Header.UserVersion;
            info["changeID"]     = this.Cache.Header.ChangeID;
            info["fileLength"]   = (this.Cache.Header.LastPageID + 1) * BasePage.PAGE_SIZE;
            info["lastPageID"]   = this.Cache.Header.LastPageID;
            info["pagesInCache"] = this.Cache.PagesInCache;
            info["dirtyPages"]   = this.Cache.GetDirtyPages().Count();

            return(info);
        }
Esempio n. 6
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        private void WriteObject(BsonObject obj, object docId)
        {
            var hasData = obj.Keys.Length > 0;

            this.WriteStartBlock("{", hasData);

            if (docId != null)
            {
                this.WriteKeyValue("_id", new BsonValue(docId), hasData);
            }

            var index = 0;

            foreach (var key in obj.Keys)
            {
                this.WriteKeyValue(key, obj[key], index++ < obj.Keys.Length - 1);
            }

            this.WriteEndBlock("}", hasData);
        }
Esempio n. 7
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        private BsonObject ReadObject(StringScanner s)
        {
            var obj = new BsonObject();

            s.Scan(@"\s*{");

            while (!s.Match(@"\s*}"))
            {
                s.Scan(@"\s*");

                // accept key without "
                var key = s.Match(@"[\w$]+") ?
                          s.Scan(@"[\w$]+") : this.ReadString(s);

                if (key.Trim().Length == 0)
                {
                    throw new ArgumentException("Invalid json object key");
                }

                s.Scan(@"\s*:\s*");

                var value = this.ReadValue(s);

                obj[key] = value;

                if (s.Scan(@"\s*,").Length == 0)
                {
                    break;
                }
            }

            if (s.Scan(@"\s*}").Length == 0)
            {
                throw new ArgumentException("Missing close json object symbol");
            }

            return(obj);
        }