public static Object fromWritable()

in mr/src/main/java/org/elasticsearch/hadoop/util/WritableUtils.java [121:189]
65 lines of code
20 McCabe index (conditional complexity)

    public static Object fromWritable(Writable writable) {
        if (writable == null) {
            return null;
        }
        if (writable instanceof NullWritable) {
            return null;
        }
        if (writable instanceof Text) {
            return ((Text) writable).toString();
        }
        if (WritableCompatUtil.isShortWritable(writable)) {
            return WritableCompatUtil.unwrap(writable);
        }
        if (writable instanceof IntWritable) {
            return ((IntWritable) writable).get();
        }
        if (writable instanceof VLongWritable) {
            return ((VLongWritable) writable).get();
        }
        if (writable instanceof VIntWritable) {
            return ((VIntWritable) writable).get();
        }
        if (writable instanceof ByteWritable) {
            return ((ByteWritable) writable).get();
        }
        if (writable instanceof DoubleWritable) {
            return ((DoubleWritable) writable).get();
        }
        if (writable instanceof FloatWritable) {
            return ((FloatWritable) writable).get();
        }
        if (writable instanceof BooleanWritable) {
            return ((BooleanWritable) writable).get();
        }
        if (writable instanceof BytesWritable) {
            return ((BytesWritable) writable).getBytes();
        }
        if (writable instanceof ArrayWritable) {
            Writable[] writables = ((ArrayWritable) writable).get();
            List<Object> list = new ArrayList<Object>(writables.length);
            for (Writable wrt : writables) {
                list.add(fromWritable(wrt));
            }
            return list;
        }
        if (writable instanceof AbstractMapWritable) {
            // AbstractMap writable doesn't provide any generic signature so we force it
            @SuppressWarnings("unchecked")
            Map<Writable, Writable> smap = (Map<Writable, Writable>) writable;
            Set<Writable> wkeys = smap.keySet();
            Map<Object, Object> map = (writable instanceof SortedMapWritable ? new TreeMap<Object, Object>() : new LinkedHashMap<Object, Object>(wkeys.size()));

            boolean isSet = true;
            for (Writable wKey : wkeys) {
                Writable wValue = smap.get(wKey);
                if (!(wValue instanceof NullWritable)) {
                    isSet = false;
                }
                map.put(fromWritable(wKey), fromWritable(wValue));
            }

            if (isSet) {
                return map.keySet();
            }
            return map;
        }
        // fall-back to bytearray
        return org.apache.hadoop.io.WritableUtils.toByteArray(writable);
    }