AvroDiffMap.java 文件源码

private static void applyMapDiff(Schema.Field field, GenericRecord avroObj, GenericRecord fieldsValue, Map<Object, Object> modifiedObj, Object key) throws IOException {
    Map<String, Object> changedKeys = ((MapDiff) fieldsValue).getChangedKeys();

    for (String changedKey : changedKeys.keySet()) {
        Class<?> clazz = changedKeys.get(changedKey).getClass();

        if (clazz.isAssignableFrom(PrimitiveDiff.class)) {
            AvroDiffPrimitive.applyPrimitiveDiff(field, avroObj, changedKeys.get(changedKey), changedKeys, changedKey);
            modifiedObj.put(key, changedKeys);
        } else if (clazz.isAssignableFrom(MapDiff.class)) {
            AvroDiffMap.applyMapDiff(field, avroObj, (GenericRecord) changedKeys.get(changedKey), Maps.newHashMap(changedKeys), changedKey);
        } else if (clazz.isAssignableFrom(ArrayDiff.class)) {
            AvroDiffArray.applyArrayDiff(field, avroObj, (GenericRecord) changedKeys.get(changedKey), null);
        } else if (clazz.isAssignableFrom(RecordDiff.class)) {
            Object avroField = ((Map) avroObj.get(field.pos())).get(key);
            GenericRecord genericRecord = AvroDiff.applyDiff((GenericRecord) ((Map) avroField).get(changedKey), (RecordDiff) changedKeys.get(changedKey),
                    ((GenericRecord) ((Map) avroField).get(changedKey)).getSchema());
            ((Map) avroField).put(changedKey, genericRecord);
            modifiedObj.put(key, avroField);
        }
    }
}