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January 11, 2019 18:35
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| val moshi = Moshi.Builder() | |
| .add(SkipBadListObjectsAdapterFactory()) | |
| .build() |
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| class SkipBadListObjectsAdapterFactory : JsonAdapter.Factory { | |
| override fun create(type: Type, annotations: MutableSet<out Annotation>, moshi: Moshi): JsonAdapter<*>? { | |
| return if (annotations.isEmpty() && Types.getRawType(type) == List::class.java) { | |
| val elementType = Types.collectionElementType(type, List::class.java) | |
| val elementAdapter = moshi.adapter<Any>(elementType) | |
| SkipBadListObjectsAdapter(elementAdapter) | |
| } else { | |
| null | |
| } | |
| } | |
| private class SkipBadListObjectsAdapter<T : Any>(private val elementAdapter: JsonAdapter<T>) : | |
| JsonAdapter<List<T>>() { | |
| override fun fromJson(reader: JsonReader): List<T>? { | |
| val goodObjectsList = mutableListOf<T>() | |
| reader.beginArray() | |
| while (reader.hasNext()) { | |
| try { | |
| elementAdapter.fromJson(reader)?.let(goodObjectsList::add) | |
| } catch (e: JsonDataException) { | |
| // Skip bad element ;) | |
| } | |
| } | |
| reader.endArray() | |
| return goodObjectsList | |
| } | |
| override fun toJson(writer: JsonWriter, value: List<T>?) { | |
| throw UnsupportedOperationException("SkipBadListObjectsAdapter is only used to deserialize objects") | |
| } | |
| } | |
| } |
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