Example usage for com.google.gson.reflect TypeToken get

List of usage examples for com.google.gson.reflect TypeToken get

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Introduction

In this page you can find the example usage for com.google.gson.reflect TypeToken get.

Prototype

public static <T> TypeToken<T> get(Class<T> type)

Source Link

Document

Gets type literal for the given Class instance.

Usage

From source file:br.cefetmg.radar.util.typeadapter.HibernateProxyTypeAdapter.java

@SuppressWarnings({ "rawtypes", "unchecked" })
@Override/*from  w w w. j av a 2  s.  c o  m*/
public void write(JsonWriter out, HibernateProxy value) throws IOException {
    if (value == null) {
        out.nullValue();
        return;
    }
    // Retrieve the original (not proxy) class
    Class<?> baseType = Hibernate.getClass(value);
    // Get the TypeAdapter of the original class, to delegate the serialization
    TypeAdapter delegate = context.getAdapter(TypeToken.get(baseType));
    // Get a filled instance of the original class
    Object unproxiedValue = ((HibernateProxy) value).getHibernateLazyInitializer().getImplementation();
    // Serialize the value
    delegate.write(out, unproxiedValue);
}

From source file:ca.ualberta.cs.team1travelexpenseapp.gsonUtils.RuntimeTypeAdapterFactory.java

License:Apache License

public <R> TypeAdapter<R> create(Gson gson, TypeToken<R> type) {
    if (type.getRawType() != baseType) {
        return null;
    }//from  www  . j  a v  a  2  s  . co  m

    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();
            @SuppressWarnings("unchecked") // registration requires that subtype extends T
            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);
            @SuppressWarnings("unchecked") // registration requires that subtype extends T
            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);
        }
    };
}

From source file:cc.easyandroid.easyhttp.core.converter.ConverterFactory.java

License:Apache License

/**
 * Create a converter for {@code type}.// ww w .ja  va2 s  .c  o m
 */
public Converter<?> getGsonConverter(Type type) {
    TypeAdapter<?> adapter = gson.getAdapter(TypeToken.get(type));
    return new GsonConverter<>(adapter, mEasyHttpCache);
}

From source file:cc.kave.commons.utils.json.RuntimeTypeAdapterFactory.java

License:Apache License

public <R> TypeAdapter<R> create(Gson gson, TypeToken<R> type) {
    if (type.getRawType() != baseType) {
        return null;
    }// w  w w  . j  a v a2s .c  o  m

    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);
            // (kave adaptation) was: ".remove(typeFiledName)"
            JsonElement labelJsonElement = jsonElement.getAsJsonObject().get(typeFieldName);
            if (labelJsonElement == null) {
                throw new JsonParseException("cannot deserialize " + baseType
                        + " because it does not define a field named " + typeFieldName);
            }
            String label = labelJsonElement.getAsString();
            @SuppressWarnings("unchecked") // registration requires that
            // subtype extends T
            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 {
            if (value == null) {
                Streams.write(null, out);
                return;
            }
            Class<?> srcType = value.getClass();
            String label = subtypeToLabel.get(srcType);
            @SuppressWarnings("unchecked") // registration requires that
            // subtype extends T
            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();
            // (kave adaptation) disabled check
            // 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);
        }
    };
}

From source file:ch.vorburger.worlds.persistence.gson.GraphAdapterBuilder.java

License:Apache License

public GraphAdapterBuilder addType(Type type) {
    final ObjectConstructor<?> objectConstructor = constructorConstructor.get(TypeToken.get(type));
    InstanceCreator<Object> instanceCreator = new InstanceCreator<Object>() {
        public Object createInstance(Type type) {
            return objectConstructor.construct();
        }/*from  ww  w.  j a v  a 2 s.c o m*/
    };
    return addType(type, instanceCreator);
}

From source file:cmput301w15t07.TravelTracker.util.DeletionFlagTypeAdapterFactory.java

License:Apache License

@SuppressWarnings("unchecked")
@Override//from  w ww  . j  av a  2s.c o m
public <T> TypeAdapter<T> create(Gson gson, TypeToken<T> type) {
    // TODO technically isAssignableFrom is deprecated and we should change
    // it. Maybe some time in the future.
    if (!DeletionFlag.class.isAssignableFrom(type.getRawType())) {
        return null;
    }

    Log.d("TypeAdapter", "Good type: " + type.getRawType().getCanonicalName());
    for (Type param : ((ParameterizedType) type.getType()).getActualTypeArguments()) {
        Log.d("TypeAdapter", "Parameter type: " + param.toString());
    }

    // Get the parameterizing type
    Type elementType = ((ParameterizedType) type.getType()).getActualTypeArguments()[0];

    // Get adapters specific to the object we need so that we can delegate
    TypeAdapter<?> documentAdapter = gson.getAdapter(TypeToken.get(elementType));

    return (TypeAdapter<T>) new DeletionFlagAdapter<Document>((TypeAdapter<Document>) documentAdapter);
}

From source file:cn.bingoogolapple.scaffolding.net.NetConverterFactory.java

License:Apache License

@Override
public Converter<ResponseBody, ?> responseBodyConverter(Type type, Annotation[] annotations,
        Retrofit retrofit) {/*from www.j ava  2s.co m*/
    TypeAdapter<?> adapter = gson.getAdapter(TypeToken.get(type));
    return new NetResponseBodyConverter<>(gson, adapter);
}

From source file:cn.bingoogolapple.scaffolding.net.NetConverterFactory.java

License:Apache License

@Override
public Converter<?, RequestBody> requestBodyConverter(Type type, Annotation[] parameterAnnotations,
        Annotation[] methodAnnotations, Retrofit retrofit) {
    TypeAdapter<?> adapter = gson.getAdapter(TypeToken.get(type));
    return new NetRequestBodyConverter<>(gson, adapter);
}

From source file:cn.ieclipse.af.demo.sample.volley.adapter.CollectionsAdapter.java

License:Apache License

@Override
public <T> TypeAdapter<T> create(Gson gson, TypeToken<T> typeToken) {
    Type type = typeToken.getType();

    Class<? super T> rawType = typeToken.getRawType();
    if (!Collection.class.isAssignableFrom(rawType)) {
        return null;
    }/*from   ww w .j  a  v  a  2s  . c  om*/

    Type elementType = $Gson$Types.getCollectionElementType(type, rawType);
    TypeAdapter<?> elementTypeAdapter = gson.getAdapter(TypeToken.get(elementType));
    ObjectConstructor<T> constructor = constructorConstructor.get(typeToken);

    @SuppressWarnings({ "unchecked", "rawtypes" }) // create() doesn't define a type parameter
    TypeAdapter<T> result = new Adapter(gson, elementType, elementTypeAdapter, constructor);
    return result;
}

From source file:cn.ieclipse.af.demo.sample.volley.adapter.TypeAdapterRuntimeTypeWrapper.java

License:Apache License

public void write(JsonWriter out, T value) throws IOException {
    TypeAdapter chosen = this.delegate;
    Type runtimeType = this.getRuntimeTypeIfMoreSpecific(this.type, value);
    if (runtimeType != this.type) {
        TypeAdapter runtimeTypeAdapter = this.context.getAdapter(TypeToken.get(runtimeType));
        if (!(runtimeTypeAdapter instanceof ReflectiveTypeAdapterFactory.Adapter)) {
            chosen = runtimeTypeAdapter;
        } else if (!(this.delegate instanceof ReflectiveTypeAdapterFactory.Adapter)) {
            chosen = this.delegate;
        } else {//w ww.jav  a2 s.c  o  m
            chosen = runtimeTypeAdapter;
        }
    }

    chosen.write(out, value);
}