HBase Hadoop ExampleClient

ExampleClient.java

import java.io.*;
import org.apache.hadoop.conf.*;
import org.apache.hadoop.hbase.*;
import org.apache.hadoop.hbase.client.*;
import org.apache.hadoop.hbase.util.*;

public class ExampleClient {
        public static void main(String[] args) throws IOException {
                Configuration config = HBaseConfiguration.create();
                // Create table
                HBaseAdmin admin = new HBaseAdmin(config);
                HTableDescriptor htd = new HTableDescriptor("test");
                HColumnDescriptor hcd = new HColumnDescriptor("data");
                htd.addFamily(hcd);
                admin.createTable(htd);
                byte [] tablename = htd.getName();
                HTableDescriptor [] tables = admin.listTables();
                if (tables.length != 1 && Bytes.equals(tablename, tables[0].getName())) {
                        throw new IOException("Failed create of table");
                }

                // Run some operations -- a put, a get, and a scan -- against the table.
                HTable table = new HTable(config, tablename);
                byte [] row1 = Bytes.toBytes("row1");
                Put p1 = new Put(row1);
                byte [] databytes = Bytes.toBytes("data");
                p1.add(databytes, Bytes.toBytes("1"), Bytes.toBytes("value1"));
                table.put(p1);
                Get g = new Get(row1);
                Result result = table.get(g);
                System.out.println("Get: " + result);
                Scan scan = new Scan();
                ResultScanner scanner = table.getScanner(scan);
                try {
                        for (Result scannerResult: scanner) {
                                System.out.println("Scan: " + scannerResult);
                        }
                } finally {
                        scanner.close();
                }
                // Drop the table
                admin.disableTable(tablename);
                admin.deleteTable(tablename);
        }
}