@Before
public void setUp() throws IOException {
MapFileDemo.main(new String[] {MAP_URI});
Configuration conf = new Configuration();
fs = FileSystem.get(URI.create(MAP_URI), conf);
reader = new MapFile.Reader(fs, MAP_URI, conf);
key = (WritableComparable<?>) ReflectionUtils.newInstance(reader.getKeyClass(), conf);
value = (Writable) ReflectionUtils.newInstance(reader.getValueClass(), conf);
}
@Override
public long next(HdfsInputStream hdfsistr, Holder<Object> key, Holder<Object> value) {
try {
MapFile.Reader reader = (BloomMapFile.Reader) hdfsistr.getIn();
Holder<Integer> keySize = new Holder<Integer>();
WritableComparable<?> keyWritable =
(WritableComparable<?>)
ReflectionUtils.newInstance(reader.getKeyClass(), new Configuration());
Holder<Integer> valueSize = new Holder<Integer>();
Writable valueWritable =
(Writable) ReflectionUtils.newInstance(reader.getValueClass(), new Configuration());
if (reader.next(keyWritable, valueWritable)) {
key.value = getObject(keyWritable, keySize);
value.value = getObject(valueWritable, valueSize);
return keySize.value + valueSize.value;
} else {
return 0;
}
} catch (Exception ex) {
throw new RuntimeCamelException(ex);
}
}
