PutListErrorExample3.java

package client;

// cc PutListErrorExample3 Special error handling with lists of puts
import java.io.IOException;
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.TableName;
import org.apache.hadoop.hbase.client.Connection;
import org.apache.hadoop.hbase.client.ConnectionFactory;
import org.apache.hadoop.hbase.client.Put;
import org.apache.hadoop.hbase.client.RetriesExhaustedWithDetailsException;
import org.apache.hadoop.hbase.client.Table;
import org.apache.hadoop.hbase.util.Bytes;

import util.HBaseHelper;

public class PutListErrorExample3 {

  public static void main(String[] args) throws IOException {
    Configuration conf = HBaseConfiguration.create();
    try (
      HBaseHelper helper = HBaseHelper.getHelper(conf);
      Connection connection = ConnectionFactory.createConnection(conf);
      Table table = connection.getTable(TableName.valueOf("testtable"));
    ) {
      helper.dropTable("testtable");
      helper.createTable("testtable", "colfam1");
      List<Put> puts = new ArrayList<Put>();

      Put put1 = new Put(Bytes.toBytes("row1"));
      put1.addColumn(Bytes.toBytes("colfam1"), Bytes.toBytes("qual1"),
        Bytes.toBytes("val1"));
      puts.add(put1);
      Put put2 = new Put(Bytes.toBytes("row2"));
      put2.addColumn(Bytes.toBytes("BOGUS"), Bytes.toBytes("qual1"),
        Bytes.toBytes("val2"));
      puts.add(put2);
      Put put3 = new Put(Bytes.toBytes("row2"));
      put3.addColumn(Bytes.toBytes("colfam1"), Bytes.toBytes("qual2"),
        Bytes.toBytes("val3"));
      puts.add(put3);

      // vv PutListErrorExample3
      try {
        table.put(puts); // co PutListErrorExample3-1-DoPut Store multiple rows with columns into HBase.
      } catch (RetriesExhaustedWithDetailsException e) {
        int numErrors = e.getNumExceptions(); // co PutListErrorExample3-2-Error Handle failed operations.
        System.out.println("Number of exceptions: " + numErrors);
        for (int n = 0; n < numErrors; n++) {
          System.out.println("Cause[" + n + "]: " + e.getCause(n));
          System.out.println("Hostname[" + n + "]: " + e.getHostnamePort(n));
          System.out.println("Row[" + n + "]: " + e.getRow(n)); // co PutListErrorExample3-3-ErrorPut Gain access to the failed operation.
        }
        System.out.println("Cluster issues: " + e.mayHaveClusterIssues());
        System.out.println("Description: " + e.getExhaustiveDescription());
      }
      // ^^ PutListErrorExample3
    }
  }
}