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package cn.bigdata;

import java.util.ArrayList;
import java.util.List;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.Cell;
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.TableName;
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.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.filter.BinaryComparator;
import org.apache.hadoop.hbase.filter.BinaryPrefixComparator;
import org.apache.hadoop.hbase.filter.ByteArrayComparable;
import org.apache.hadoop.hbase.filter.ColumnPrefixFilter;
import org.apache.hadoop.hbase.filter.CompareFilter.CompareOp;
import org.apache.hadoop.hbase.filter.FamilyFilter;
import org.apache.hadoop.hbase.filter.Filter;
import org.apache.hadoop.hbase.filter.MultipleColumnPrefixFilter;
import org.apache.hadoop.hbase.filter.PrefixFilter;
import org.apache.hadoop.hbase.filter.QualifierFilter;
import org.apache.hadoop.hbase.filter.RegexStringComparator;
import org.apache.hadoop.hbase.filter.RowFilter;
import org.apache.hadoop.hbase.filter.SingleColumnValueFilter;
import org.apache.hadoop.hbase.filter.SubstringComparator;
import org.apache.hadoop.hbase.util.Bytes;
import org.junit.Before;
import org.junit.Test;

public class HbaseDao {

    private Configuration conf;
    private HTable testDemo;

    @Before
    public void init() throws Exception {
        conf = HBaseConfiguration.create();
        //ÉèÖÃHbaseËùÒÀÀµµÄZookeeper¼¯Èº£¬ÎÒʹÓõÄÊÇα·Ö²¼Ä£Ê½£¬ËùÒÔÖ»ÓÐÒ»¸ö½Úµã
        conf.set("hbase.zookeeper.quorum", "localhost:2181");
        //±íÃû
        testDemo = new HTable(conf, "testDemo01");
    }

    /**
     * ¸ù¾Ý¼üÃû²åÈëÊý¾Ý
     * 
     * @throws Exception
     */
    @Test
    public void testInsert() throws Exception {
        //¼üÃû
        Put name = new Put(Bytes.toBytes("rk0002"));
        name.add(Bytes.toBytes("base_info"), Bytes.toBytes("name"),
                Bytes.toBytes("Ììʹ"));

        Put age = new Put(Bytes.toBytes("rk0002"));
        age.add(Bytes.toBytes("base_info"), Bytes.toBytes("age"),
                Bytes.toBytes("28"));

        ArrayList<Put> puts = new ArrayList<Put>();
        puts.add(name);
        puts.add(age);

        testDemo.put(puts);

    }

    /**
     * ɾ³ý±í
     * 
     * @throws Exception
     */
    @Test
    public void testDrop() throws Exception {
        //´´½¨±íºÍɾ³ý±í¶¼ÐèÒªHBaseAdmin
        HBaseAdmin admin = new HBaseAdmin(conf);
        admin.disableTable("testDemo01");
        admin.deleteTable("testDemo01");
        admin.close();

    }

    /**
     * ¸ù¾Ý¼üÃûÈ¡³öÊý¾Ý
     * 
     * @throws Exception
     */
    @Test
    public void testGet() throws Exception {
        Get get = new Get(Bytes.toBytes("rk0002"));
        get.setMaxVersions(5);
        Result result = testDemo.get(get);
        List<Cell> cell = result.listCells();

        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()));

        }

    }


    public static void main(String[] args) throws Exception {

        Configuration conf = HBaseConfiguration.create();
        conf.set("hbase.zookeeper.quorum", "localhost:2181");

        HBaseAdmin admin = new HBaseAdmin(conf);
        //±íÃû
        TableName name = TableName.valueOf("testDemo01");

        HTableDescriptor desc = new HTableDescriptor(name);
        //ÁÐ×å
        HColumnDescriptor base_info = new HColumnDescriptor("base_info");
        HColumnDescriptor extra_info = new HColumnDescriptor("base_info");
        //°æ±¾Êý
        base_info.setMaxVersions(5);

        desc.addFamily(base_info);
        desc.addFamily(extra_info);

        admin.createTable(desc);

    }

}

HBaseÌṩÁ˺ܶàɸѡµÄ¹ýÂËÆ÷£¬ÓÃÓÚscan·½·¨

    /**
     * ¶àÖÖ¹ýÂËÌõ¼þµÄʹÓ÷½·¨
     * @throws Exception
     */
    @Test
    public void testScan() throws Exception{
        HTable table = new HTable(conf, "person_info".getBytes());
        Scan scan = new Scan(Bytes.toBytes("person_rk_bj_zhang_000001"), Bytes.toBytes("person_rk_bj_zhang_000002"));
        // ǰ׺¹ýÂËÆ÷----Õë¶ÔÐмü
        Filter filter = new PrefixFilter(Bytes.toBytes("rk"));

        // ÐйýÂËÆ÷
        ByteArrayComparable rowComparator = new BinaryComparator(
                Bytes.toBytes("person_rk_bj_zhang_000001"));
        RowFilter rf = new RowFilter(CompareOp.LESS_OR_EQUAL, rowComparator);

        /**
         * ¼ÙÉèrowkey¸ñʽΪ£º´´½¨ÈÕÆÚ_·¢²¼ÈÕÆÚ_ID_TITLE Ä¿±ê£º²éÕÒ ·¢²¼ÈÕÆÚ Îª 2014-12-21 µÄÊý¾Ý
         */
        rf = new RowFilter(CompareOp.EQUAL, new SubstringComparator(
                "_2014-12-21_"));

        // µ¥Öµ¹ýÂËÆ÷ 1 ÍêÕûÆ¥Åä×Ö½ÚÊý×é
        new SingleColumnValueFilter("base_info".getBytes(), "name".getBytes(),
                CompareOp.EQUAL, "zhangsan".getBytes());
        // µ¥Öµ¹ýÂËÆ÷2 Æ¥ÅäÕýÔò±í´ïʽ
        ByteArrayComparable comparator = new RegexStringComparator("zhang.");
        new SingleColumnValueFilter("info".getBytes(), "NAME".getBytes(),
                CompareOp.EQUAL, comparator);

        // µ¥Öµ¹ýÂËÆ÷2 Æ¥ÅäÊÇ·ñ°üº¬×Ó´®,´óСд²»Ãô¸Ð
        comparator = new SubstringComparator("wu");
        new SingleColumnValueFilter("info".getBytes(), "NAME".getBytes(),
                CompareOp.EQUAL, comparator);

        // ¼üÖµ¶ÔÔªÊý¾Ý¹ýÂË-----family¹ýÂË----×Ö½ÚÊý×éÍêÕûÆ¥Åä
        FamilyFilter ff = new FamilyFilter(CompareOp.EQUAL,
                new BinaryComparator(Bytes.toBytes("base_info")) // ±íÖв»´æÔÚinfÁÐ×壬¹ýÂ˽á¹ûΪ¿Õ
        );
        // ¼üÖµ¶ÔÔªÊý¾Ý¹ýÂË-----family¹ýÂË----×Ö½ÚÊý×éǰ׺ƥÅä
        ff = new FamilyFilter(CompareOp.EQUAL, new BinaryPrefixComparator(
                Bytes.toBytes("inf")) // ±íÖдæÔÚÒÔinf´òÍ·µÄÁÐ×åinfo£¬¹ýÂ˽á¹ûΪ¸ÃÁÐ×åËùÓÐÐÐ
        );

        // ¼üÖµ¶ÔÔªÊý¾Ý¹ýÂË-----qualifier¹ýÂË----×Ö½ÚÊý×éÍêÕûÆ¥Åä

        filter = new QualifierFilter(CompareOp.EQUAL, new BinaryComparator(
                Bytes.toBytes("na")) // ±íÖв»´æÔÚnaÁУ¬¹ýÂ˽á¹ûΪ¿Õ
        );
        filter = new QualifierFilter(CompareOp.EQUAL,
                new BinaryPrefixComparator(Bytes.toBytes("na")) // ±íÖдæÔÚÒÔna´òÍ·µÄÁÐname£¬¹ýÂ˽á¹ûΪËùÓÐÐеĸÃÁÐÊý¾Ý
        );

        // »ùÓÚÁÐÃû(¼´Qualifier)ǰ׺¹ýÂËÊý¾ÝµÄColumnPrefixFilter
        filter = new ColumnPrefixFilter("na".getBytes());

        // »ùÓÚÁÐÃû(¼´Qualifier)¶à¸öǰ׺¹ýÂËÊý¾ÝµÄMultipleColumnPrefixFilter
        byte[][] prefixes = new byte[][] { Bytes.toBytes("na"),
                Bytes.toBytes("me") };
        filter = new MultipleColumnPrefixFilter(prefixes);

        // Ϊ²éѯÉèÖùýÂËÌõ¼þ
        scan.setFilter(filter);

        scan.addFamily(Bytes.toBytes("base_info"));
        ResultScanner scanner = testDemo.getScanner(scan);
        for (Result r : scanner) {

            // Ö±½Ó´ÓresultÖÐÈ¡µ½Ä³¸öÌض¨µÄvalue
            byte[] value = r.getValue(Bytes.toBytes("base_info"),
                    Bytes.toBytes("name"));
            System.out.println(new String(value));
        }
        testDemo.close();
    }