package hbase;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.hbase.HBaseConfiguration;
import org.apache.hadoop.hbase.HColumnDescriptor;
import org.apache.hadoop.hbase.HTableDescriptor;
import org.apache.hadoop.hbase.KeyValue;
import org.apache.hadoop.hbase.MasterNotRunningException;
import org.apache.hadoop.hbase.TableName;
import org.apache.hadoop.hbase.ZooKeeperConnectionException;
import org.apache.hadoop.hbase.client.Delete;
import org.apache.hadoop.hbase.client.Get;
import org.apache.hadoop.hbase.client.HBaseAdmin;
import org.apache.hadoop.hbase.client.HTable;
import org.apache.hadoop.hbase.client.HTablePool;
import org.apache.hadoop.hbase.client.Result;
import org.apache.hadoop.hbase.client.ResultScanner;
import org.apache.hadoop.hbase.client.Scan;
import org.apache.hadoop.hbase.filter.CompareFilter.CompareOp;
import org.apache.hadoop.hbase.filter.Filter;
import org.apache.hadoop.hbase.filter.FilterList;
import org.apache.hadoop.hbase.filter.SingleColumnValueFilter;
import org.apache.hadoop.hbase.util.Bytes;
import org.junit.Test;

public class MyHbase {
	public static Configuration conf;  
    static {  
    	conf = HBaseConfiguration.create();  
    	conf.set("hbase.zookeeper.property.clientPort", "2181");  
    	conf.set("hbase.zookeeper.quorum", "192.168.17.6,192.168.17.7,192.168.17.8");  
    	conf.set("hbase.master", "192.168.17.5:60000");  
    }  
    public static void createTable(String tableName){
    	try {
			HBaseAdmin hbaseAdmin = new HBaseAdmin(conf);
			if(hbaseAdmin.tableExists(tableName)){
				hbaseAdmin.disableTable(tableName);
				hbaseAdmin.deleteTable(tableName);
			}
			HTableDescriptor hTableDescriptor = new HTableDescriptor();
			hTableDescriptor.addFamily(new HColumnDescriptor(tableName));
			hbaseAdmin.createTable(hTableDescriptor);
		} catch (MasterNotRunningException e) {
		} catch (ZooKeeperConnectionException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}
    	
    }
    
    public static void dropTable(String tableName) {  
        try {  
            HBaseAdmin admin = new HBaseAdmin(conf);  
            admin.disableTable(tableName);  
            admin.deleteTable(tableName);  
        } catch (MasterNotRunningException e) {  
            e.printStackTrace();  
        } catch (ZooKeeperConnectionException e) {  
            e.printStackTrace();  
        } catch (IOException e) {  
            e.printStackTrace();  
        }  
  
    }  
    
    public static void deleteRow(String tablename, String rowkey)  {  
        try {  
            HTable table = new HTable(conf, tablename);  
            List list = new ArrayList();  
            Delete d1 = new Delete(rowkey.getBytes());  
            list.add(d1);  
              
            table.delete(list);  
            System.out.println("删除行成功!");  
              
        } catch (IOException e) {  
            e.printStackTrace();  
        }  
    }  
    
    /** 
     * 查询所有数据 
     * @param tableName 
     */  
    public static void QueryAll(String tableName) {  
        HTablePool pool = new HTablePool(conf, 1000);  
        HTable table = (HTable) pool.getTable(tableName);  
        try {  
            ResultScanner rs = table.getScanner(new Scan());  
            for (Result r : rs) {  
                System.out.println("获得到rowkey:" + new String(r.getRow()));  
                for (KeyValue keyValue : r.raw()) {  
                    System.out.println("列：" + new String(keyValue.getFamily())  
                            + "====值:" + new String(keyValue.getValue()));  
                }  
            }  
        } catch (IOException e) {  
            e.printStackTrace();  
        }  
    }  
    
    /** 
     * 单条件查询,根据rowkey查询唯一一条记录 
     * @param tableName 
     */  
    public static void QueryByCondition1(String tableName) {  
        HTablePool pool = new HTablePool(conf, 1000);  
        HTable table = (HTable) pool.getTable(tableName);  
        try {  
            Get scan = new Get("abcdef".getBytes());// 根据rowkey查询  
            Result r = table.get(scan);  
            System.out.println("获得到rowkey:" + new String(r.getRow()));  
            for (KeyValue keyValue : r.raw()) {  
                System.out.println("列：" + new String(keyValue.getFamily())  
                        + "====值:" + new String(keyValue.getValue()));  
            }  
        } catch (IOException e) {  
            e.printStackTrace();  
        }  
    }  
    
    /** 
     * 单条件按查询，查询多条记录 
     * @param tableName 
     */  
    public static void QueryByCondition2(String tableName) {  
  
        try {  
            HTablePool pool = new HTablePool(conf, 1000);  
            HTable table = (HTable) pool.getTable(tableName);  
            Filter filter = new SingleColumnValueFilter(Bytes  
                    .toBytes("column1"), null, CompareOp.EQUAL, Bytes  
                    .toBytes("aaa")); // 当列column1的值为aaa时进行查询  
            Scan s = new Scan();  
            s.setFilter(filter);  
            ResultScanner rs = table.getScanner(s);  
            for (Result r : rs) {  
                System.out.println("获得到rowkey:" + new String(r.getRow()));  
                for (KeyValue keyValue : r.raw()) {  
                    System.out.println("列：" + new String(keyValue.getFamily())  
                            + "====值:" + new String(keyValue.getValue()));  
                }  
            }  
        } catch (Exception e) {  
            e.printStackTrace();  
        }  
  
    }  
    
    /** 
     * 多个过滤器组合条件查询 
     * @param tableName 
     */  
    public static void QueryByCondition3(String tableName) {  
  
        try {  
            HTablePool pool = new HTablePool(conf, 1000);  
            HTable table = (HTable) pool.getTable(tableName);  
  
            List<Filter> filters = new ArrayList<Filter>();  
  
            Filter filter1 = new SingleColumnValueFilter(Bytes  
                    .toBytes("column1"), null, CompareOp.EQUAL, Bytes  
                    .toBytes("aaa"));  
            filters.add(filter1);  
  
            Filter filter2 = new SingleColumnValueFilter(Bytes  
                    .toBytes("column2"), null, CompareOp.EQUAL, Bytes  
                    .toBytes("bbb"));  
            filters.add(filter2);  
  
            Filter filter3 = new SingleColumnValueFilter(Bytes  
                    .toBytes("column3"), null, CompareOp.EQUAL, Bytes  
                    .toBytes("ccc"));  
            filters.add(filter3);  
  
            FilterList filterList1 = new FilterList(filters);  
  
            Scan scan = new Scan();  
            scan.setFilter(filterList1);  
            ResultScanner rs = table.getScanner(scan);  
            for (Result r : rs) {  
                System.out.println("获得到rowkey:" + new String(r.getRow()));  
                for (KeyValue keyValue : r.raw()) {  
                    System.out.println("列：" + new String(keyValue.getFamily())  
                            + "====值:" + new String(keyValue.getValue()));  
                }  
            }  
            rs.close();  
  
        } catch (Exception e) {  
            e.printStackTrace();  
        }  
  
    }  
  
  
    public static void main(String[] args) {
    	createTable("mytable");
	}
	


	
	
}