C# HBaseClient.GetCells方法代码示例

        static void Main(string[] args)
        {

            bool quit = false;
            while (!quit)
            {
                Console.ResetColor();
                Console.WriteLine("Enter a stock code, or enter 'quit' to exit");

                // Connect to HBase cluster
                string clusterURL = "https://hb12345.azurehdinsight.net";
                string userName = "HDUser";
                string password = "HDPa$$w0rd";

                ClusterCredentials creds = new ClusterCredentials(new Uri(clusterURL), userName, password);
                HBaseClient hbaseClient = new HBaseClient(creds);

                string input = Console.ReadLine();
                if (input.ToLower() == "quit")
                {
                    quit = true;
                }
                else
                {
                    CellSet cellSet = hbaseClient.GetCells("Stocks", input);
                    var row = cellSet.rows[0];
                    Double currentPrice = Double.Parse(Encoding.UTF8.GetString(row.values[1].data));
                    Double closingPrice = Double.Parse(Encoding.UTF8.GetString(row.values[0].data));
                    if (currentPrice > closingPrice)
                    {
                        Console.ForegroundColor = ConsoleColor.Green;
                    }
                    else
                        if (currentPrice < closingPrice)
                    {
                        Console.ForegroundColor = ConsoleColor.Red;
                    }
                    Console.WriteLine(input + ": " + currentPrice.ToString());
                }
            }

        }

        public void TestStoreSingleCell()
        {
            const string testKey = "content";
            const string testValue = "the force is strong in this column";
            var client = new HBaseClient(_credentials);
            var set = new CellSet();
            var row = new CellSet.Row { key = Encoding.UTF8.GetBytes(testKey) };
            set.rows.Add(row);

            var value = new Cell { column = Encoding.UTF8.GetBytes("d:starwars"), data = Encoding.UTF8.GetBytes(testValue) };
            row.values.Add(value);

            client.StoreCells(_testTableName, set);

            CellSet cells = client.GetCells(_testTableName, testKey);
            Assert.AreEqual(1, cells.rows.Count);
            Assert.AreEqual(1, cells.rows[0].values.Count);
            Assert.AreEqual(testValue, Encoding.UTF8.GetString(cells.rows[0].values[0].data));
        }

            private static void Main(string[] args)
            {
                const string clusterURL = "http://localhost:5555";
                const string hadoopUsername = "root";
                const string hadoopUserPassword = "hadoop";
                var serializer = new JsonDotNetSerializer();
                // Create a new instance of an HBase client.
                var hbaseClient = new HBaseClient(new ClusterCredentials(new Uri(clusterURL), hadoopUsername, hadoopUserPassword));
                var itemMapper = new ItemMapper(serializer);
                hbaseClient.DeleteTable("Items");
                var tableSchema = itemMapper.CreateTableSchema("Items");
                hbaseClient.CreateTable(tableSchema);

                //var perfCheck = new PerformanceChecksManager(hbaseClient, "Items", itemMapper, new ItemsGenerator(),50,100);
                //perfCheck.RunPerformanceLoad();
                
                //Generating item.
                var itemsGenerator = new ItemsGenerator();
                var item = itemsGenerator.CreateItem("mycode");

                //Generating cells relevant to the generate item and saving the entity to Hbae.
                var itemCellSet = itemMapper.GetCells(item, "en-US");
                var stausCell = itemCellSet.rows.Single().values.Single(cell => Encoding.UTF8.GetString(cell.column).Equals("CF1:Status"));
                stausCell.data = new byte[0];
                hbaseClient.StoreCells("Items", itemCellSet);

                //making sure item stored well.
                var originalItemCells = hbaseClient.GetCells("Items", item.Code);
                var originalItemFetchedFromDb = itemMapper.GetDto(originalItemCells, "en-US");

                if (!string.IsNullOrEmpty(originalItemFetchedFromDb.Status))
                    throw new Exception();

                //Describing the conditional update expression.
                var cellToCheck = new Cell { column = Encoding.UTF8.GetBytes("CF1:Status"), data = new byte[0] };

                //manipulating original item.
                stausCell = itemCellSet.rows.Single().values.Single(cell => Encoding.UTF8.GetString(cell.column).Equals("CF1:Status"));
                var newStatusValue = Encoding.UTF8.GetBytes("new");
                stausCell.data = newStatusValue;
                
                //Testing new functionality...

                hbaseClient.CheckAndPutCells("Items", itemCellSet, cellToCheck);
                //Thread.Sleep(1);
                itemCellSet = hbaseClient.GetCells("Items", item.Code);
                var itemFromDb = itemMapper.GetDto(itemCellSet, "en-US");

                if (!itemFromDb.Status.Equals(Encoding.UTF8.GetString(newStatusValue)))
                    throw new Exception();


                #region Old-Helper
                //string clusterURL = "http://localhost:5555";
                //string hadoopUsername = "root";
                //string hadoopUserPassword = "hadoop";
                //string hbaseTableName = "MyCoolTable";

                //// Create a new instance of an HBase client.
                //ClusterCredentials creds = new ClusterCredentials(new Uri(clusterURL), hadoopUsername, hadoopUserPassword);
                //HBaseClient hbaseClient = new HBaseClient(creds);

                //var hbaseHelper = new Helper(hbaseClient, "ThisIsJustATableForShirly1", "DummyKey1ForShirly1");
                //hbaseHelper.CreateTable();
                //var myClass = new Dto()
                //{
                //    Field1 = "1",
                //    Field2 = "2",
                //    Field3 = "3",
                //    Field4 = "4",
                //    Field5 = "5",
                //    NestedData = new NestedDto() { Field1 = "n1", Field2 = "n2" }
                //};

                //hbaseHelper.SaveMyDto(myClass);

                //var dto = hbaseHelper.GetMyDto();
#endregion
            }