Example usage for com.google.gson TypeAdapter TypeAdapter

List of usage examples for com.google.gson TypeAdapter TypeAdapter

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In this page you can find the example usage for com.google.gson TypeAdapter TypeAdapter.

Prototype

TypeAdapter

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Usage

From source file:com.cyanogenmod.account.gcm.model.MessageTypeAdapterFactory.java

License:Apache License

@Override
public <T> TypeAdapter<T> create(Gson gson, TypeToken<T> type) {
    if (!Message.class.isAssignableFrom(type.getRawType())) {
        return null;
    }/*from  w  ww  .  j  a v  a2  s .c o m*/

    final TypeAdapter<Message> rootAdapter = gson.getDelegateAdapter(this, TypeToken.get(Message.class));
    final TypeAdapter<PublicKeyMessage> keyExchangeAdapter = gson.getDelegateAdapter(this,
            TypeToken.get(PublicKeyMessage.class));
    final TypeAdapter<SymmetricKeyMessage> symmetricKeyAdapter = gson.getDelegateAdapter(this,
            TypeToken.get(SymmetricKeyMessage.class));
    final TypeAdapter<EncryptedMessage> secureMessageAdapter = gson.getDelegateAdapter(this,
            TypeToken.get(EncryptedMessage.class));
    final TypeAdapter<JsonElement> elementAdapter = gson.getAdapter(JsonElement.class);

    TypeAdapter<Message> result = new TypeAdapter<Message>() {
        @Override
        public void write(JsonWriter out, Message value) throws IOException {
            if (value instanceof PublicKeyMessage) {
                keyExchangeAdapter.write(out, (PublicKeyMessage) value);
            } else if (value instanceof SymmetricKeyMessage) {
                symmetricKeyAdapter.write(out, (SymmetricKeyMessage) value);
            } else if (value instanceof EncryptedMessage) {
                secureMessageAdapter.write(out, (EncryptedMessage) value);
            } else {
                JsonObject object = rootAdapter.toJsonTree(value).getAsJsonObject();
                elementAdapter.write(out, object);
            }
        }

        @Override
        public Message read(JsonReader in) throws IOException {
            JsonObject object = elementAdapter.read(in).getAsJsonObject();
            if (object.has("public_key")) {
                return keyExchangeAdapter.fromJsonTree(object);
            } else if (object.has("symmetric_key")) {
                return symmetricKeyAdapter.fromJsonTree(object);
            } else if (object.has("ciphertext")) {
                return secureMessageAdapter.fromJsonTree(object);
            } else {
                return rootAdapter.fromJsonTree(object);
            }
        }
    }.nullSafe();

    return (TypeAdapter<T>) result;
}

From source file:com.dell.prototype.apm.model.javaee.ApplicationServer.java

License:Open Source License

@Override
public String toString() {

    return new GsonBuilder().setPrettyPrinting()
            .registerTypeAdapter(this.getClass(), new TypeAdapter<ApplicationServer>() {
                private String getFormattedRequests(List<Request> requests) {
                    StringBuilder sb = new StringBuilder();
                    sb.append("[");
                    for (int i = 0; i < requests.size(); i++) {
                        sb.append("request sequence " + i + ": ");
                        sb.append(requests.get(i));
                    }//w  ww .j  a  v  a  2  s  .  c  o m
                    sb.append("]");
                    return sb.toString();
                }

                @Override
                public void write(JsonWriter jsonWriter, ApplicationServer applicationServer)
                        throws IOException {
                    jsonWriter.beginObject();
                    jsonWriter.name("name").value(applicationServer.getName());
                    jsonWriter.name("jvm").value(
                            applicationServer.getJvm() == null ? "" : applicationServer.getJvm().toString());
                    jsonWriter.name("responseTime").value(applicationServer.getResponseTime().toString());
                    jsonWriter.name("requests").value(getFormattedRequests(applicationServer.getRequests()));
                    jsonWriter.endObject();
                }

                @Override
                public ApplicationServer read(JsonReader jsonReader) throws IOException {
                    return null;
                }
            }).create().toJson(this);
}

From source file:com.dell.prototype.apm.model.javaee.JVM.java

License:Open Source License

@Override
public String toString() {
    return new GsonBuilder().setPrettyPrinting().registerTypeAdapter(this.getClass(), new TypeAdapter<JVM>() {
        @Override//from  w ww  .ja v a 2 s.  c  om
        public void write(JsonWriter jsonWriter, JVM jvm) throws IOException {
            jsonWriter.beginObject();
            jsonWriter.name("name").value(jvm.getName());
            jsonWriter.name("version").value(jvm.getVersion());
            jsonWriter.name("architecture").value(jvm.getArchitecture());
            jsonWriter.name("usedHeap").value(jvm.getUsedHeap().toString());
            jsonWriter.name("committedHeap").value(jvm.getCommittedHeap().toString());
            jsonWriter.name("gcOverhead").value(jvm.getGcOverhead().toString());
            jsonWriter.name("threadsCount").value(jvm.getThreadsCount().toString());
            jsonWriter.name("avgThreadCpuTime").value(jvm.getAvgThreadCpuTime().toString());
            jsonWriter.endObject();
        }

        @Override
        public JVM read(JsonReader jsonReader) throws IOException {
            return null;
        }
    }).create().toJson(this);
}

From source file:com.dell.prototype.apm.model.Metric.java

License:Open Source License

@Override
public String toString() {
    return new GsonBuilder().registerTypeAdapter(this.getClass(), new TypeAdapter<Metric>() {
        @Override/*from   w ww  .  j a  v  a 2s .  co m*/
        public void write(JsonWriter jsonWriter, Metric metric) throws IOException {
            jsonWriter.beginObject();
            jsonWriter.name("name").value(metric.getName());
            List<MetricValue> values = metric.getValues();
            if (values.size() > 0) {
                jsonWriter.name("latestValue").value(values.get(values.size() - 1).toString());
            } else {
                jsonWriter.name("latestValue").value("");
            }
            jsonWriter.endObject();
        }

        @Override
        public Metric read(JsonReader jsonReader) throws IOException {
            return null;
        }
    }).setPrettyPrinting().create().toJson(this);
}

From source file:com.devicehive.json.adapters.RuntimeTypeAdapterFactory.java

License:Apache License

public <R> TypeAdapter<R> create(Gson gson, TypeToken<R> type) {
    if (type.getRawType() != baseType) {
        return null;
    }/*  w ww  . j  a va2s  .  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);
            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 {
            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);
            Streams.write(jsonObject, out);
        }
    }.nullSafe();
}

From source file:com.drakeet.rebase.api.tool.ResponseTypeAdapterFactory.java

License:Open Source License

@Override
public <T> TypeAdapter<T> create(Gson gson, TypeToken<T> type) {
    final TypeAdapter<T> delegateAdapter = gson.getDelegateAdapter(this, type);
    final TypeAdapter<JsonElement> jsonElementAdapter = gson.getAdapter(JsonElement.class);

    return new TypeAdapter<T>() {
        @Override//from w ww.java  2 s .co m
        public void write(JsonWriter out, T value) throws IOException {
            delegateAdapter.write(out, value);
        }

        @Override
        @SuppressWarnings("PointlessBooleanExpression")
        public T read(JsonReader in) throws IOException {
            JsonElement jsonElement = jsonElementAdapter.read(in);
            if (jsonElement.isJsonObject()) {
                JsonObject jsonObject = jsonElement.getAsJsonObject();
                if (jsonObject.has(ERROR) && jsonObject.get(ERROR).getAsBoolean() == false) {
                    if (jsonObject.has(DATA) && isJson(jsonObject, DATA)) {
                        jsonElement = jsonObject.get(DATA);
                    }
                }
            }
            return delegateAdapter.fromJsonTree(jsonElement);
        }
    }.nullSafe();
}

From source file:com.etermax.conversations.repository.impl.elasticsearch.mapper.RuntimeTypeAdapterFactory.java

License:Apache License

public <R> TypeAdapter<R> create(Gson gson, TypeToken<R> type) {
    if (type.getRawType() != baseType) {
        return null;
    }//from  w  w  w  .java2 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();
}

From source file:com.flipkart.batching.gson.RuntimeTypeAdapterFactory.java

License:Open Source License

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

    final Map<String, TypeAdapter<?>> labelToDelegate = new LinkedHashMap<>();
    final Map<Class<?>, TypeAdapter<?>> subtypeToDelegate = new LinkedHashMap<>();

    for (Map.Entry<String, Class<?>> entry : labelToSubtype.entrySet()) {
        TypeAdapter<?> delegate = labelToTypeAdapter.get(entry.getKey());
        if (delegate == null) {
            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 reader) throws IOException {

            if (reader.peek() == com.google.gson.stream.JsonToken.NULL) {
                reader.nextNull();
                return null;
            }
            if (reader.peek() != com.google.gson.stream.JsonToken.BEGIN_OBJECT) {
                reader.skipValue();
                return null;
            }
            reader.beginObject();

            String label = null;
            R result = null;
            while (reader.hasNext()) {
                String name = reader.nextName();
                com.google.gson.stream.JsonToken jsonToken = reader.peek();
                if (jsonToken == com.google.gson.stream.JsonToken.NULL) {
                    reader.skipValue();
                    continue;
                }
                switch (name) {
                case "type":
                    label = TypeAdapters.STRING.read(reader);
                    break;
                case "value":
                    @SuppressWarnings("unchecked") // registration requires that subtype extends T
                    TypeAdapter<R> delegate = label == null ? null
                            : (TypeAdapter<R>) labelToDelegate.get(label);
                    if (delegate == null) {
                        throw new JsonParseException("cannot deserialize " + baseType + " subtype named "
                                + label + "; did you forget to register a subtype?");
                    }
                    result = delegate.read(reader);
                    break;
                default:
                    reader.skipValue();
                    break;
                }
            }

            reader.endObject();
            return result;
        }

        @Override
        public void write(JsonWriter out, R value) throws IOException {
            Class<?> srcType = value.getClass();
            @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?");
            }
            String label = subtypeToLabel.get(srcType);
            out.beginObject();

            out.name("type");
            out.value(label);

            out.name("value");
            delegate.write(out, value);

            out.endObject();
        }
    }.nullSafe();
}

From source file:com.github.gfx.android.orma.gson.SingleAssociationTypeAdapterFactory.java

License:Apache License

@Override
public <T> TypeAdapter<T> create(final Gson gson, TypeToken<T> typeToken) {
    if (!typeToken.getRawType().isAssignableFrom(SingleAssociation.class)) {
        return null;
    }//from   ww  w .ja  v  a2s  .  c  o  m
    if (!(typeToken.getType() instanceof ParameterizedType)) {
        throw new ClassCastException(
                "Expected a parameterized SingleAssociation<T>, but got " + typeToken.getType());
    }

    final Class<?> modelType = (Class<?>) ((ParameterizedType) typeToken.getType()).getActualTypeArguments()[0];

    final Schema<?> schema = Schemas.get(modelType);

    return new TypeAdapter<T>() {

        @Override
        public void write(JsonWriter out, T value) throws IOException {
            SingleAssociation<?> association = (SingleAssociation<?>) value;
            gson.toJson(association.get(), modelType, out);
        }

        @Override
        @SuppressWarnings("unchecked")
        public T read(JsonReader in) throws IOException {
            Object model = gson.fromJson(in, modelType);
            return (T) SingleAssociation.just((Schema<Object>) schema, model);
        }
    };
}

From source file:com.github.kyriosdata.regras.infraestrutura.CustomRegraTypeAdapterFactory.java

License:Creative Commons License

@Override
public <T> TypeAdapter<T> create(final Gson gson, final TypeToken<T> type) {
    if (type.getRawType() != Regra.class)
        return null;

    final TypeAdapter<T> delegate = gson.getDelegateAdapter(this, type);

    return new TypeAdapter<T>() {
        @Override/*from  w w  w. j  a  v  a  2 s  . co m*/
        public void write(final JsonWriter jsonWriter, final T t) throws IOException {
            jsonWriter.beginObject();
            jsonWriter.name("tipo");
            jsonWriter.value(getTipo(t.getClass().getName()));
            jsonWriter.name("obj");
            delegate.write(jsonWriter, t);
            jsonWriter.endObject();
        }

        @Override
        public T read(final JsonReader jsonReader) throws IOException, JsonParseException {
            JsonElement tree = Streams.parse(jsonReader);
            JsonObject object = tree.getAsJsonObject();

            String clazz = object.get("tipo").getAsString();
            JsonElement obj = object.get("obj").getAsJsonObject();

            if ("expressao".equals(clazz)) {
                return (T) gson.getDelegateAdapter(CustomRegraTypeAdapterFactory.this,
                        TypeToken.get(RegraExpressao.class)).fromJsonTree(obj);
            }

            if ("pontosPorRelato".equals(clazz)) {
                return (T) gson.getDelegateAdapter(CustomRegraTypeAdapterFactory.this,
                        TypeToken.get(RegraPontosPorRelato.class)).fromJsonTree(obj);
            }

            throw new JsonParseException("Erro ao desserializar " + type + ". No  uma regra?");
        }
    };
}