package com.embracesource.edh.hbase;
import java.util.ArrayList;
import java.util.List;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.HBaseConfiguration;
import org.apache.hadoop.hbase.client.HTable;
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.Filter;
import org.apache.hadoop.hbase.filter.MultiRowRangeFilter;
import org.apache.hadoop.hbase.filter.MultiRowRangeFilter.RowKeyRange;
import org.apache.hadoop.hbase.util.Bytes;
public class MultiRowRangeFilterTest {
public static void main(String[] args) throws Exception {
if (args.length < 1) {
throw new Exception("Table name not specified.");
}
Configuration conf = HBaseConfiguration.create();
HTable table = new HTable(conf, args[0]);
Scan scan = new Scan();
List<RowKeyRange> ranges = new ArrayList<RowKeyRange>();
ranges.add(new RowKeyRange(Bytes.toBytes("001"), Bytes.toBytes("002")));
ranges.add(new RowKeyRange(Bytes.toBytes("003"), Bytes.toBytes("004")));
ranges.add(new RowKeyRange(Bytes.toBytes("005"), Bytes.toBytes("006")));
Filter filter = new MultiRowRangeFilter(ranges);
scan.setFilter(filter);
int count = 0;
ResultScanner scanner = table.getScanner(scan);
Result r = scanner.next();
while (r != null) {
count++;
r = scanner.next();
}
System.out
.println("++ Scanning finished with count : " + count + " ++");
scanner.close();
}
}