public class HBaseDemo {

	private Configuration conf = null;
	
	@Before
	public void init(){
		conf = HBaseConfiguration.create();
		//客戶端連線zookeeper
		conf.set("hbase.zookeeper.quorum", "hadoop01,hadoop02,hadoop03");
	}
	
	@Test
	public void testDrop() throws Exception{
		
		HBaseAdmin admin = new HBaseAdmin(conf);
		admin.disableTable("account");
		admin.deleteTable("account");
		admin.close();
	}
	/**
	*插入資料
	*/
	@Test
	public void testPut() throws Exception{
		HTable table = new HTable(conf, "user");
		//提供row key
		Put put = new Put(Bytes.toBytes("rk0003"));
		//列族、列的標示符、值，引數都是位元組陣列
		put.add(Bytes.toBytes("info"), Bytes.toBytes("name"), Bytes.toBytes("liuyan"));
		table.put(put);
		table.close();
	}
	/**
	*獲取資料
	*/
	@Test
	public void testGet() throws Exception{
		//HTablePool pool = new HTablePool(conf, 10);
		//HTable table = (HTable) pool.getTable("user");
		HTable table = new HTable(conf, "user");
		Get get = new Get(Bytes.toBytes("rk0001"));
		//get.addColumn(Bytes.toBytes("info"), Bytes.toBytes("name"));
		get.setMaxVersions(5);
		Result result = table.get(get);
		
	  //String r = Bytes.toString(result.getValue(family, qualifier) );這個獲取方法不常用
		
		for(KeyValue kv : result.list()){
			String family = new String(kv.getFamily());
			System.out.println(family);
			String qualifier = new String(kv.getQualifier());
			System.out.println(qualifier);
			System.out.println(new String(kv.getValue()));
		}
		table.close();
	}
	
	@Test
	public void testScan() throws Exception{
		HTablePool pool = new HTablePool(conf, 10);
		HTableInterface table = pool.getTable("user");
		Scan scan = new Scan(Bytes.toBytes("rk0001"), Bytes.toBytes("rk0002"));
		scan.addFamily(Bytes.toBytes("info"));
		//結果集 
		ResultScanner scanner = table.getScanner(scan);
		for(Result r : scanner){
			/**
			for(KeyValue kv : r.list()){
				String family = new String(kv.getFamily());
				System.out.println(family);
				String qualifier = new String(kv.getQualifier());
				System.out.println(qualifier);
				System.out.println(new String(kv.getValue()));
			}
			*/
			byte[] value = r.getValue(Bytes.toBytes("info"), Bytes.toBytes("name"));
			System.out.println(new String(value));
		}
		pool.close();
	}
	
	
	@Test
	public void testDel() throws Exception{
		HTable table = new HTable(conf, "user");
		Delete del = new Delete(Bytes.toBytes("rk0001"));
		del.deleteColumn(Bytes.toBytes("data"), Bytes.toBytes("pic"));
		table.delete(del);
		table.close();
	}
	
	
	
	
	public static void main(String[] args) throws Exception {
		Configuration conf = HBaseConfiguration.create();
		conf.set("hbase.zookeeper.quorum", "hadoop01,hadoop02,hadoop03");
		//ddl操作，傳入conf，可知操作哪個hbase叢集
		HBaseAdmin admin = new HBaseAdmin(conf);
		HTableDescriptor td = new HTableDescriptor("account");
		HColumnDescriptor cd = new HColumnDescriptor("info");
		cd.setMaxVersions(10);
		td.addFamily(cd);
		admin.createTable(td);
		admin.close();

	}
	
	public void createTable(String tableName, int maxVersion, String... cf){
		
	}

}