Examples with TypeAdapter com.google.gson.TypeAdapter used on opensource projects

Example 1 with TypeAdapter

use of com.google.gson.TypeAdapter in project elastic-job by dangdangdotcom.

the class GsonFactoryTest method assertRegisterTypeAdapter.

@Test
public void assertRegisterTypeAdapter() {
    Gson beforeRegisterGson = GsonFactory.getGson();
    GsonFactory.registerTypeAdapter(GsonFactoryTest.class, new TypeAdapter() {

        @Override
        public Object read(final JsonReader in) throws IOException {
            return null;
        }

        @Override
        public void write(final JsonWriter out, final Object value) throws IOException {
            out.jsonValue("test");
        }
    });
    assertThat(beforeRegisterGson.toJson(new GsonFactoryTest()), is("{}"));
    assertThat(GsonFactory.getGson().toJson(new GsonFactoryTest()), is("test"));
}

Example 2 with TypeAdapter

use of com.google.gson.TypeAdapter in project smarthome by eclipse.

the class PropertiesTypeAdapterFactory method create.

@SuppressWarnings({ "unused", "unchecked" })
@Override
public <T> TypeAdapter<T> create(Gson gson, TypeToken<T> typeToken) {
    Type type = typeToken.getType();
    Class<? super T> rawType = typeToken.getRawType();
    if (!PropertiesTypeAdapter.TOKEN.equals(typeToken)) {
        return null;
    }
    return (TypeAdapter<T>) new PropertiesTypeAdapter(gson);
}

Example 3 with TypeAdapter

use of com.google.gson.TypeAdapter in project LanternServer by LanternPowered.

the class ObjectTypeAdapterFactory method create.

@Nullable
@Override
public <T> TypeAdapter<T> create(Gson gson, TypeToken<T> type) {
    if (!type.isAssignableFrom(this.typeToken)) {
        return null;
    }
    final TypeAdapter<JsonElement> jsonElementTypeAdapter = gson.getAdapter(JsonElement.class);
    final TypeToken theTypeToken = type;
    return new TypeAdapter<T>() {

        @SuppressWarnings("unchecked")
        @Override
        public void write(JsonWriter out, T value) throws IOException {
            final JsonElement element = serialize((TypeToken<V>) theTypeToken, (V) value, gson);
            jsonElementTypeAdapter.write(out, element);
        }

        @SuppressWarnings("unchecked")
        @Override
        public T read(JsonReader in) throws IOException {
            final JsonElement element = jsonElementTypeAdapter.read(in);
            return (T) deserialize(theTypeToken, element, gson);
        }
    };
}

Example 4 with TypeAdapter

use of com.google.gson.TypeAdapter in project runelite by runelite.

the class RuntimeTypeAdapterFactory method create.

public <R> TypeAdapter<R> create(Gson gson, TypeToken<R> type) {
    if (type.getRawType() != baseType) {
        return null;
    }
    final Map<String, TypeAdapter<?>> labelToDelegate = new LinkedHashMap<String, TypeAdapter<?>>();
    final Map<Class<?>, TypeAdapter<?>> subtypeToDelegate = new LinkedHashMap<Class<?>, TypeAdapter<?>>();
    for (Map.Entry<String, Class<?>> entry : labelToSubtype.entrySet()) {
        TypeAdapter<?> delegate = gson.getDelegateAdapter(this, TypeToken.get(entry.getValue()));
        labelToDelegate.put(entry.getKey(), delegate);
        subtypeToDelegate.put(entry.getValue(), delegate);
    }
    return new TypeAdapter<R>() {

        @Override
        public R read(JsonReader in) throws IOException {
            JsonElement jsonElement = Streams.parse(in);
            JsonElement labelJsonElement = jsonElement.getAsJsonObject().remove(typeFieldName);
            if (labelJsonElement == null) {
                throw new JsonParseException("cannot deserialize " + baseType + " because it does not define a field named " + typeFieldName);
            }
            String label = labelJsonElement.getAsString();
            // registration requires that subtype extends T
            @SuppressWarnings("unchecked") TypeAdapter<R> delegate = (TypeAdapter<R>) labelToDelegate.get(label);
            if (delegate == null) {
                throw new JsonParseException("cannot deserialize " + baseType + " subtype named " + label + "; did you forget to register a subtype?");
            }
            return delegate.fromJsonTree(jsonElement);
        }

        @Override
        public void write(JsonWriter out, R value) throws IOException {
            Class<?> srcType = value.getClass();
            String label = subtypeToLabel.get(srcType);
            // registration requires that subtype extends T
            @SuppressWarnings("unchecked") TypeAdapter<R> delegate = (TypeAdapter<R>) subtypeToDelegate.get(srcType);
            if (delegate == null) {
                throw new JsonParseException("cannot serialize " + srcType.getName() + "; did you forget to register a subtype?");
            }
            JsonObject jsonObject = delegate.toJsonTree(value).getAsJsonObject();
            if (jsonObject.has(typeFieldName)) {
                throw new JsonParseException("cannot serialize " + srcType.getName() + " because it already defines a field named " + typeFieldName);
            }
            JsonObject clone = new JsonObject();
            clone.add(typeFieldName, new JsonPrimitive(label));
            for (Map.Entry<String, JsonElement> e : jsonObject.entrySet()) {
                clone.add(e.getKey(), e.getValue());
            }
            Streams.write(clone, out);
        }
    }.nullSafe();
}

Example 5 with TypeAdapter

use of com.google.gson.TypeAdapter in project BuildCraft by BuildCraft.

the class JsonUtil method registerNbtSerializersDeserializers.

public static GsonBuilder registerNbtSerializersDeserializers(GsonBuilder gsonBuilder) {
    return gsonBuilder.registerTypeAdapterFactory(new TypeAdapterFactory() {

        @Override
        public <T> TypeAdapter<T> create(Gson gson, TypeToken<T> type) {
            return type.getRawType() == NBTBase.class ? new TypeAdapter<T>() {

                @Override
                public void write(JsonWriter out, T value) throws IOException {
                    // noinspection unchecked, RedundantCast
                    Streams.write(((JsonSerializer<T>) (JsonSerializer<NBTBase>) (src, typeOfSrc, context) -> {
                        if (src == NBTUtilBC.NBT_NULL) {
                            return JsonNull.INSTANCE;
                        }
                        switch(src.getId()) {
                            case Constants.NBT.TAG_BYTE:
                                return context.serialize(src, NBTTagByte.class);
                            case Constants.NBT.TAG_SHORT:
                                return context.serialize(src, NBTTagShort.class);
                            case Constants.NBT.TAG_INT:
                                return context.serialize(src, NBTTagInt.class);
                            case Constants.NBT.TAG_LONG:
                                return context.serialize(src, NBTTagLong.class);
                            case Constants.NBT.TAG_FLOAT:
                                return context.serialize(src, NBTTagFloat.class);
                            case Constants.NBT.TAG_DOUBLE:
                                return context.serialize(src, NBTTagDouble.class);
                            case Constants.NBT.TAG_BYTE_ARRAY:
                                return context.serialize(src, NBTTagByteArray.class);
                            case Constants.NBT.TAG_STRING:
                                return context.serialize(src, NBTTagString.class);
                            case Constants.NBT.TAG_LIST:
                                return context.serialize(src, NBTTagList.class);
                            case Constants.NBT.TAG_COMPOUND:
                                return context.serialize(src, NBTTagCompound.class);
                            case Constants.NBT.TAG_INT_ARRAY:
                                return context.serialize(src, NBTTagIntArray.class);
                            default:
                                throw new IllegalArgumentException(src.toString());
                        }
                    }).serialize(value, type.getType(), new JsonSerializationContext() {

                        @Override
                        public JsonElement serialize(Object src) {
                            return gson.toJsonTree(src);
                        }

                        @Override
                        public JsonElement serialize(Object src, Type typeOfSrc) {
                            return gson.toJsonTree(src, typeOfSrc);
                        }
                    }), out);
                }

                @Override
                public T read(JsonReader in) throws IOException {
                    return ((JsonDeserializer<T>) (json, typeOfT, context) -> {
                        if (json.isJsonNull()) {
                            // noinspection unchecked
                            return (T) NBTUtilBC.NBT_NULL;
                        }
                        if (json.isJsonPrimitive() && json.getAsJsonPrimitive().isNumber()) {
                            Number number = json.getAsJsonPrimitive().getAsNumber();
                            if (number instanceof BigInteger || number instanceof Long || number instanceof Integer || number instanceof Short || number instanceof Byte) {
                                return context.deserialize(json, NBTTagLong.class);
                            } else {
                                return context.deserialize(json, NBTTagDouble.class);
                            }
                        }
                        if (json.isJsonPrimitive() && json.getAsJsonPrimitive().isBoolean()) {
                            return context.deserialize(new JsonPrimitive(json.getAsJsonPrimitive().getAsBoolean() ? (byte) 1 : (byte) 0), NBTTagByte.class);
                        }
                        if (json.isJsonPrimitive() && json.getAsJsonPrimitive().isString()) {
                            return context.deserialize(json, NBTTagString.class);
                        }
                        if (json.isJsonArray()) {
                            return context.deserialize(json, NBTTagList.class);
                        }
                        if (json.isJsonObject()) {
                            return context.deserialize(json, NBTTagCompound.class);
                        }
                        throw new IllegalArgumentException(json.toString());
                    }).deserialize(Streams.parse(in), type.getType(), gson::fromJson);
                }
            } : null;
        }
    }).registerTypeAdapter(NBTTagByte.class, (JsonSerializer<NBTTagByte>) (src, typeOfSrc, context) -> new JsonPrimitive(src.getByte())).registerTypeAdapter(NBTTagByte.class, (JsonDeserializer<NBTTagByte>) (json, typeOfT, context) -> new NBTTagByte(json.getAsJsonPrimitive().getAsByte())).registerTypeAdapter(NBTTagShort.class, (JsonSerializer<NBTTagShort>) (src, typeOfSrc, context) -> new JsonPrimitive(src.getShort())).registerTypeAdapter(NBTTagShort.class, (JsonDeserializer<NBTTagShort>) (json, typeOfT, context) -> new NBTTagShort(json.getAsJsonPrimitive().getAsShort())).registerTypeAdapter(NBTTagInt.class, (JsonSerializer<NBTTagInt>) (src, typeOfSrc, context) -> new JsonPrimitive(src.getInt())).registerTypeAdapter(NBTTagInt.class, (JsonDeserializer<NBTTagInt>) (json, typeOfT, context) -> new NBTTagInt(json.getAsJsonPrimitive().getAsInt())).registerTypeAdapter(NBTTagLong.class, (JsonSerializer<NBTTagLong>) (src, typeOfSrc, context) -> new JsonPrimitive(src.getLong())).registerTypeAdapter(NBTTagLong.class, (JsonDeserializer<NBTTagLong>) (json, typeOfT, context) -> new NBTTagLong(json.getAsJsonPrimitive().getAsLong())).registerTypeAdapter(NBTTagFloat.class, (JsonSerializer<NBTTagFloat>) (src, typeOfSrc, context) -> new JsonPrimitive(src.getFloat())).registerTypeAdapter(NBTTagFloat.class, (JsonDeserializer<NBTTagFloat>) (json, typeOfT, context) -> new NBTTagFloat(json.getAsJsonPrimitive().getAsFloat())).registerTypeAdapter(NBTTagDouble.class, (JsonSerializer<NBTTagDouble>) (src, typeOfSrc, context) -> new JsonPrimitive(src.getDouble())).registerTypeAdapter(NBTTagDouble.class, (JsonDeserializer<NBTTagDouble>) (json, typeOfT, context) -> new NBTTagDouble(json.getAsJsonPrimitive().getAsDouble())).registerTypeAdapter(NBTTagByteArray.class, (JsonSerializer<NBTTagByteArray>) (src, typeOfSrc, context) -> {
        JsonArray jsonArray = new JsonArray();
        for (byte element : src.getByteArray()) {
            jsonArray.add(new JsonPrimitive(element));
        }
        return jsonArray;
    }).registerTypeAdapter(NBTTagByteArray.class, (JsonDeserializer<NBTTagByteArray>) (json, typeOfT, context) -> new NBTTagByteArray(ArrayUtils.toPrimitive(StreamSupport.stream(json.getAsJsonArray().spliterator(), false).map(JsonElement::getAsByte).toArray(Byte[]::new)))).registerTypeAdapter(NBTTagString.class, (JsonSerializer<NBTTagString>) (src, typeOfSrc, context) -> new JsonPrimitive(src.getString())).registerTypeAdapter(NBTTagString.class, (JsonDeserializer<NBTTagString>) (json, typeOfT, context) -> new NBTTagString(json.getAsJsonPrimitive().getAsString())).registerTypeAdapter(NBTTagList.class, (JsonSerializer<NBTTagList>) (src, typeOfSrc, context) -> {
        JsonArray jsonArray = new JsonArray();
        for (int i = 0; i < src.tagCount(); i++) {
            NBTBase element = src.get(i);
            jsonArray.add(context.serialize(element, NBTBase.class));
        }
        return jsonArray;
    }).registerTypeAdapter(NBTTagList.class, (JsonDeserializer<NBTTagList>) (json, typeOfT, context) -> {
        NBTTagList nbtTagList = new NBTTagList();
        StreamSupport.stream(json.getAsJsonArray().spliterator(), false).map(element -> context.<NBTBase>deserialize(element, NBTBase.class)).forEach(nbtTagList::appendTag);
        return nbtTagList;
    }).registerTypeAdapter(NBTTagCompound.class, (JsonSerializer<NBTTagCompound>) (src, typeOfSrc, context) -> {
        JsonObject jsonObject = new JsonObject();
        for (String key : src.getKeySet()) {
            jsonObject.add(key, context.serialize(src.getTag(key), NBTBase.class));
        }
        return jsonObject;
    }).registerTypeAdapter(NBTTagCompound.class, (JsonDeserializer<NBTTagCompound>) (json, typeOfT, context) -> {
        NBTTagCompound nbtTagCompound = new NBTTagCompound();
        for (Map.Entry<String, JsonElement> entry : json.getAsJsonObject().entrySet()) {
            nbtTagCompound.setTag(entry.getKey(), context.deserialize(entry.getValue(), NBTBase.class));
        }
        return nbtTagCompound;
    }).registerTypeAdapter(NBTTagIntArray.class, (JsonSerializer<NBTTagIntArray>) (src, typeOfSrc, context) -> {
        JsonArray jsonArray = new JsonArray();
        for (int element : src.getIntArray()) {
            jsonArray.add(new JsonPrimitive(element));
        }
        return jsonArray;
    }).registerTypeAdapter(NBTTagIntArray.class, (JsonDeserializer<NBTTagIntArray>) (json, typeOfT, context) -> new NBTTagIntArray(StreamSupport.stream(json.getAsJsonArray().spliterator(), false).mapToInt(JsonElement::getAsByte).toArray()));
}