public boolean next(LongWritable key, MapWritable value) throws IOException {
try {
if (!results.next()) {
return false;
}
// Set the key field value as the output key value
key.set(pos + split.getStart());
ResultSetMetaData resultsMetaData = results.getMetaData();
int columnCount = resultsMetaData.getColumnCount();
List<String> names = new ArrayList<String>();
List<Integer> types = new ArrayList<Integer>();
// The column count starts from 1
for (int i = 1; i <= columnCount; i++) {
// This is the column name in db table
String name = resultsMetaData.getColumnName(i).toLowerCase();
// Get the relevant metaTable name
name = databaseProperties.getInputColumnMappingFields().get(name);
int type = resultsMetaData.getColumnType(i);
// Hive keeps column names in lowercase
names.add(name.toLowerCase());
types.add(type);
}
for (int j = 0; j < types.size(); j++) {
value.put(new Text(names.get(j)), getActualObjectTypeForValue(results, types, j));
}
pos++;
} catch (SQLException e) {
throw new IOException(e.getMessage());
}
return true;
}
public float getProgress() throws IOException {
return split.getLength() > 0 ? pos / (float) split.getLength() : 1.0f;
}