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

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:io.plaidapp.data.api.DenvelopingConverter.java

License:Apache License

@Override
public Converter<ResponseBody, ?> responseBodyConverter(Type type, Annotation[] annotations,
        Retrofit retrofit) {/*www.  j  a va2s .c  o m*/

    // This converter requires an annotation providing the name of the payload in the envelope;
    // if one is not supplied then return null to continue down the converter chain.
    final String payloadName = getPayloadName(annotations);
    if (payloadName == null)
        return null;

    final TypeAdapter<?> adapter = gson.getAdapter(TypeToken.get(type));
    return new Converter<ResponseBody, Object>() {
        @Override
        public Object convert(ResponseBody body) throws IOException {
            try (JsonReader jsonReader = gson.newJsonReader(body.charStream())) {
                jsonReader.beginObject();
                while (jsonReader.hasNext()) {
                    if (payloadName.equals(jsonReader.nextName())) {
                        return adapter.read(jsonReader);
                    } else {
                        jsonReader.skipValue();
                    }
                }
                return null;
            } finally {
                body.close();
            }
        }
    };
}

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From source file:jp.pay.model.ExternalAccountTypeAdapterFactory.java

License:Open Source License

@SuppressWarnings("unchecked")
public <T> TypeAdapter<T> create(Gson gson, TypeToken<T> type) {
    if (!ExternalAccount.class.isAssignableFrom(type.getRawType())) {
        return null; // this class only serializes 'ExternalAccount' and its subtypes
    }/*from ww  w. j a v a2s  .c  om*/

    final String SOURCE_OBJECT_PROP = "object";

    final TypeAdapter<JsonElement> elementAdapter = gson.getAdapter(JsonElement.class);
    final TypeAdapter<ExternalAccount> externalAccountAdapter = gson.getDelegateAdapter(this,
            TypeToken.get(ExternalAccount.class));

    final TypeAdapter<Card> cardAdapter = gson.getDelegateAdapter(this, TypeToken.get(Card.class));

    TypeAdapter<ExternalAccount> result = new TypeAdapter<ExternalAccount>() {
        public void write(JsonWriter out, ExternalAccount value) throws IOException {
            // TODO: check instance of for correct writer
            externalAccountAdapter.write(out, value);
        }

        public ExternalAccount read(JsonReader in) throws IOException {
            JsonObject object = elementAdapter.read(in).getAsJsonObject();
            String sourceObject = object.getAsJsonPrimitive(SOURCE_OBJECT_PROP).getAsString();

            if (sourceObject.equals("card")) {
                return cardAdapter.fromJsonTree(object);
            } else {
                return externalAccountAdapter.fromJsonTree(object);
            }
        }
    }.nullSafe();

    return (TypeAdapter<T>) result;
}

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From source file:leafcutter.client.Serializer.java

License:Apache License

public <R> TypeAdapter<R> create(Gson gson, TypeToken<R> type) {
    if (type.getRawType() != baseType) {
        return null;
    }/*from  w  w w. j  a  va 2 s.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);
            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);
        }
    }.nullSafe();
}

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From source file:mashup.fm.github.BaseService.java

License:Apache License

/**
 * Invoke the remote service and returns the response as a single object.
 * /*from ww  w.  j  av a2 s  .c  o m*/
 * @param arrayName
 *            the array name
 * @param urlPattern
 *            the url pattern
 * @param args
 *            the args
 * @return the json object
 */
protected static <T> T asObject(Class<T> clazz, String arrayName, String urlPattern, String... args) {
    // Define Remote Service Url
    String url = url(urlPattern, args);

    // Wrap Into Object
    TypeToken<T> type = TypeToken.get(clazz);
    T o = unmarshall(type, ((JsonObject) new JsonParser().parse(getStringData(url))).get(arrayName));

    // Return Results
    return o;
}

---

From source file:mashup.fm.github.BaseService.java

License:Apache License

/**
 * Invoke the remote service and return the response as a list of objects.
 * /* w ww .  j a v a 2  s . c o  m*/
 * @param arrayName
 *            the array name
 * @param urlPattern
 *            the url pattern
 * @param args
 *            the args
 * @return the list of objects - it will return an empty list to avoid
 *         checks for null on the client side
 */
protected static <T> List<T> asArray(Class<T> clazz, String arrayName, String urlPattern, String... args) {
    // Define Remote Service Url
    String url = url(urlPattern, args);

    // Init Results List
    List<T> list = new ArrayList<T>();

    // Wrap response into list of objects
    TypeToken<T> type = TypeToken.get(clazz);
    JsonArray array = (JsonArray) ((JsonObject) new JsonParser().parse(getStringData(url))).get(arrayName);
    if ((array != null) && (array.size() > 0)) {
        for (JsonElement element : array) {
            T o = unmarshall(type, element);
            list.add(o);
        }
    }

    // Return List
    return list;
}

---

From source file:mobi.tattu.utils.persistance.datastore.gson.RuntimeTypeAdapterFactory.java

License:Apache License

public <R> TypeAdapter<R> create(Gson gson, TypeToken<R> type) {
    if (!baseType.isAssignableFrom(type.getRawType())) {
        return null;
    }/*from   w  ww .j  ava  2  s.  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);
            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 configure a subtype?");
            }
            try {
                return delegate.fromJsonTree(jsonElement);
            } catch (JsonSyntaxException e) {
                return null;
            }
        }

        @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 configure 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();
}

---

From source file:net.billforward.gson.typeadapters.RuntimeTypeAdapterFactory.java

License:Apache License

public <R> TypeAdapter<R> create(Gson gson, TypeToken<R> type) {
    if (type.getRawType() != baseType) {
        return null;
    }// ww w .  jav  a 2s  . c om

    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) {
                delegate = (TypeAdapter<R>) labelToDelegate.get("default_value_mapping");
            }
            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);
        }
    };
}

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From source file:net.daporkchop.toobeetooteebot.text.JsonUtils.java

License:Open Source License

public static <T> T fromJson(Gson p_193838_0_, Reader p_193838_1_, Type p_193838_2_, boolean p_193838_3_) {
    try {//  www. j a  v  a  2s  .c o m
        JsonReader jsonreader = new JsonReader(p_193838_1_);
        jsonreader.setLenient(p_193838_3_);
        return (T) p_193838_0_.getAdapter(TypeToken.get(p_193838_2_)).read(jsonreader);
    } catch (IOException ioexception) {
        throw new JsonParseException(ioexception);
    }
}

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From source file:networkUtils.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  2s .  c om

    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);
            String label = predicate.process(jsonElement);
            @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 { // Unimplemented as we don't use write.
            /*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(null, out);
        }
    };
}

---

From source file:no.uka.findmyapp.android.rest.client.RestProcessor.java

License:MIT License

/**
 * Execute and parse./* w  w  w . j  av  a 2s . c  om*/
 *
 * @param serviceModel the service model
 * @return the serializable
 * @throws HTTPStatusException 
 * @throws Exception 
 */
private Serializable executeAndParse(ServiceModel serviceModel, String userToken) throws HTTPStatusException {
    mRestMethod.setUri(createURI(serviceModel, userToken));
    String response = httpRequest(serviceModel);

    Log.v(debug, "executeAndParse: Response " + response);
    Serializable s = null;

    if (serviceModel.getReturnType() != null) {
        String returnType = serviceModel.getReturnType();
        if (returnType.indexOf(".") == -1) {
            returnType = sModelPackage + returnType;
        }
        //no.uka.findmyapp.android.rest.datamodels.models
        Class theClass;
        try {
            theClass = Class.forName(returnType);
        } catch (ClassNotFoundException e) {
            Log.e(debug, e.getMessage() + " Returning data in String format!");
            return response;
        }
        new TypeToken<Object>() {
        };
        Type t1 = TypeToken.get(theClass).getType();
        ;
        try {
            s = parseFromJson(response, t1);
        } catch (JSONException e) {
            Log.e(debug, e.getMessage() + " Returning data in String format!");
            return response;
        }
    } else {
        return response;
    }

    return s;
}

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