| package edu.uci.ics.hyracks.hdfs; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.mapreduce.JobContext; |
| import org.apache.hadoop.mapreduce.JobID; |
| import org.apache.hadoop.mapreduce.Mapper; |
| import org.apache.hadoop.mapreduce.TaskAttemptContext; |
| import org.apache.hadoop.mapreduce.TaskAttemptID; |
| |
| import edu.uci.ics.hyracks.api.exceptions.HyracksDataException; |
| |
| /** |
| * The wrapper to generate TaskTattemptContext |
| */ |
| public class ContextFactory { |
| |
| @SuppressWarnings({ "unchecked", "rawtypes" }) |
| public TaskAttemptContext createContext(Configuration conf, TaskAttemptID tid) throws HyracksDataException { |
| try { |
| return new Mapper().new Context(conf, tid, null, null, null, null, null); |
| } catch (Exception e) { |
| throw new HyracksDataException(e); |
| } |
| } |
| |
| public TaskAttemptContext createContext(Configuration conf, int partition) throws HyracksDataException { |
| try { |
| TaskAttemptID tid = new TaskAttemptID("", 0, true, partition, 0); |
| return new TaskAttemptContext(conf, tid); |
| } catch (Exception e) { |
| throw new HyracksDataException(e); |
| } |
| } |
| |
| public JobContext createJobContext(Configuration conf) { |
| return new JobContext(conf, new JobID("0", 0)); |
| } |
| |
| } |
