hbase HbaseUtil 工具类

package com.utstar.iptvboss.util.hbase;

import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import java.util.Properties;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.HBaseConfiguration;
import org.apache.hadoop.hbase.HColumnDescriptor;
import org.apache.hadoop.hbase.HTableDescriptor;
import org.apache.hadoop.hbase.TableName;
import org.apache.hadoop.hbase.client.Connection;
import org.apache.hadoop.hbase.client.ConnectionFactory;
import org.apache.hadoop.hbase.client.HBaseAdmin;
import org.apache.hadoop.hbase.client.HTable;
import org.apache.hadoop.hbase.client.Put;
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.client.Table;
import org.apache.hadoop.hbase.client.coprocessor.AggregationClient;
import org.apache.hadoop.hbase.client.coprocessor.LongColumnInterpreter;
import org.apache.hadoop.hbase.util.Bytes;
import org.apache.log4j.Logger;

public class HBaseUtils {
	private static Configuration conf;  
    private static Connection conn;
    private static HBaseUtils hBaseUtils;
    private static Properties prop;
    private static Logger logger = Logger.getLogger(HBaseUtils.class);
    public void init() {  
        conf = HBaseConfiguration.create();
        prop = new Properties();
        try {  
        	prop.load(HBaseUtils.class.getResourceAsStream("/hbase.properties"));
        	String clientPort = prop.getProperty("clientPort");
        	String quorum = prop.getProperty("quorum");
        	conf.set("hbase.zookeeper.quorum", quorum);  
        	conf.set("hbase.zookeeper.property.clientPort", clientPort);  
            conn = ConnectionFactory.createConnection(conf);  
        } catch (IOException e) {  
            e.printStackTrace();  
        }  
    }
	private HBaseUtils() {
	} 
	public static HBaseUtils getInstance() {
		if(hBaseUtils == null) {
			synchronized (HBaseUtils.class) {
				if (hBaseUtils == null) {
					hBaseUtils = new HBaseUtils();
					hBaseUtils.init();
				}
			}
		}
		return hBaseUtils;
	}
	
	/**
	 * by 1022
	 * @return
	 */
	public Configuration getConfiguration(){
		return this.conf;
	}
	
	/**
	 * by 1022
	 * @param tableName
	 * @param row
	 * @param columnFamily
	 * @param column
	 * @param data
	 * @throws IOException
	 */
	public static void putData(String tableName, String row, String columnFamily, String column, String data)  
            throws IOException {  
        Connection conn = ConnectionFactory.createConnection(conf);  
        Table table = conn.getTable(TableName.valueOf(tableName));  
        try {  
            Put put = new Put(Bytes.toBytes(row));  
            put.addColumn(Bytes.toBytes(columnFamily), Bytes.toBytes(column), Bytes.toBytes(data));  
            table.put(put);
            
        } finally {  
            table.close();  
            conn.close();  
        }  
    }  
	
	
	
	public void testGet() throws IOException {  
        
    	long begin = System.currentTimeMillis();
        HTable table = (HTable) conn.getTable(TableName.valueOf("CFSchema"));
        TableName name = table.getName();
        System.out.println("name : " + name);
       /* Get get = new Get(Bytes.toBytes("91244740570"));  
        Result result = table.get(get);  
        String str = Bytes.toString(result.getValue(Bytes.toBytes("mediaCodes"),  
                Bytes.toBytes("Userid")));  
        System.out.println(str); 
        long end = System.currentTimeMillis();
        System.out.println("used time : " + (end - begin));*/
        table.close();  
    }
	public void createTable() throws IOException {  
	      
        HBaseAdmin admin = (HBaseAdmin) conn.getAdmin();  
        HTableDescriptor htd = new HTableDescriptor(TableName.valueOf("people"));  
        HColumnDescriptor htd_info = new HColumnDescriptor("info");  
        htd.addFamily(htd_info);  
        htd.addFamily(new HColumnDescriptor("data"));  
        htd_info.setMaxVersions(3);  
      
        admin.createTable(htd);  
        admin.close();  
      
    }
	public String getListByUserId(String userid) {
		HTable table;
		String rs = "";
		try {
			table = (HTable) conn.getTable(TableName.valueOf("CFSchema"));
			logger.debug(" tableName : " + table + "");
			//Get get = new Get(Bytes.toBytes(userid));  
	        //Result result = table.get(get);
			Scan scan = new Scan(Bytes.toBytes(userid),Bytes.toBytes(userid));
			scan.addColumn("cf".getBytes(), "mediaCodes".getBytes());
			ResultScanner scanner = table.getScanner(scan);
			Result result = null;
			for (Result r : scanner){
				result = r;
				rs = Bytes.toString(result.getValue(Bytes.toBytes("cf"),  
						Bytes.toBytes("mediaCodes")));  
			}
			logger.debug(" recmd list : " + rs + "");
	        table.close(); 
		} catch (IOException e) {
			logger.debug("  catch message : " + e.toString() + "");
			e.printStackTrace();
		}
		return rs;
		
	}  
	
	/**
	 * @param userid
	 * @return
	 * 根据用户id获取用户分类再获取用户推荐列表
	 */
	public String getListByUserIdForCluster(String userid) {
		HTable table;
		String rs = "";
		String cluster = "";
		Scan scan = null;
		Result result = null;
		ResultScanner scanner = null;
		try {
			//取用户分类
			table = (HTable) conn.getTable(TableName.valueOf("UserSchema"));
			logger.debug(" tableName : " + table + "");
			scan = new Scan(Bytes.toBytes(userid),Bytes.toBytes(userid));
			scan.addColumn("cf".getBytes(), "mediaCodes".getBytes());
			scanner = table.getScanner(scan);
			for (Result r : scanner){
				result = r;
				cluster = Bytes.toString(result.getValue(Bytes.toBytes("cf"),  
						Bytes.toBytes("mediaCodes")));  
			}
			table.close();
			logger.debug(" cluster : " + cluster + "");
			//根据分类取推荐列表
			table = (HTable) conn.getTable(TableName.valueOf("KmeansSchema"));
			scan = new Scan(Bytes.toBytes(cluster),Bytes.toBytes(cluster));
			scan.addColumn("cf".getBytes(), "mediaCodes".getBytes());
			scanner = table.getScanner(scan);
			for (Result r : scanner){
				result = r;
				rs = Bytes.toString(result.getValue(Bytes.toBytes("cf"),  
						Bytes.toBytes("mediaCodes")));  
			}
			logger.debug(" recmd list : " + rs + "");
			table.close(); 
		} catch (IOException e) {
			logger.debug("  catch message : " + e.toString() + "");
			e.printStackTrace();
		}
		return rs;
		
	}  
    public Map getGYLFirstVersionField() {
    	String fieldString = prop.getProperty("GYLFirstVersionFields");
    	String[] fields = fieldString.split(",");
    	HashMap fieldsMap = new HashMap();
    	for (int i = 0; i < fields.length; i++) {
    		fieldsMap.put(i, fields[i]);
    	}
    	return fieldsMap;
    }
    public Map getGYLSecondVersionField() {
    	String fieldString = prop.getProperty("GYLSecondVersionFields");
    	String[] fields = fieldString.split(",");
    	HashMap fieldsMap = new HashMap();
    	for (int i = 0; i < fields.length; i++) {
    		fieldsMap.put(i, fields[i]);
    	}
    	return fieldsMap;
    }
    
    //行计数
    public static long rowCount(String tableName) {
		long rowCount = 0;
	    @SuppressWarnings("resource")
		AggregationClient aggregationClient = new AggregationClient(conf);  
	    Scan scan = new Scan();  
	    try {
			rowCount = aggregationClient.rowCount(TableName.valueOf(tableName), 
					new LongColumnInterpreter(), scan);
		} catch (Throwable e) {
			e.printStackTrace();
		}
		return rowCount;
	}
    
    
    
}