List of usage examples for com.google.gson.reflect TypeToken getRawType
public final Class<? super T> getRawType()
From source file:de.lulebe.designer.external.RuntimeTypeAdapterFactory.java
License:Apache License
public <R> TypeAdapter<R> create(Gson gson, TypeToken<R> type) { if (type == null || !baseType.isAssignableFrom(type.getRawType())) { return null; }/*from w w w .jav a 2 s . 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) { 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:de.micromata.genome.junittools.wicket.models.WicketTestBuilderGsonBuilder.java
License:Apache License
public static Gson getGson() { if (gsonBuilder == null) { gsonBuilder = new GsonBuilder(); gsonBuilder.registerTypeAdapterFactory(new TypeAdapterFactory() { @Override//from w ww. j a v a 2 s. c o m public <T> TypeAdapter<T> create(Gson gson, TypeToken<T> type) { if (type.getRawType() == Class.class) { return new TypeAdapter<T>() { @Override public void write(JsonWriter out, T value) throws IOException { out.value(((Class) value).getName()); } @Override public T read(JsonReader in) throws IOException { try { return (T) Class.forName(in.nextString()); } catch (ClassNotFoundException e) { LOG.error("unable to transform " + in.nextString() + " to a reasonable class, please check this!"); } return null; } }; } return null; } }); } return gsonBuilder.create(); }
From source file:de.symeda.sormas.app.rest.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 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); JsonElement labelJsonElement; if (maintainType) { labelJsonElement = jsonElement.getAsJsonObject().get(typeFieldName); } else { 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 (maintainType) { Streams.write(jsonObject, out); return; } JsonObject clone = new JsonObject(); if (jsonObject.has(typeFieldName)) { throw new JsonParseException("cannot serialize " + srcType.getName() + " because it already defines a field named " + typeFieldName); } 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:edu.mit.media.funf.config.DefaultRuntimeTypeAdapterFactory.java
License:Open Source License
@SuppressWarnings("unchecked") @Override/* w ww . j a va 2 s. com*/ public <T> Class<? extends T> getRuntimeType(JsonElement el, TypeToken<T> type) { if (baseClass.isAssignableFrom(type.getRawType())) { // 1 use type if instatiable // 2 use default if type cannot be instantiated and type is assignable from type // 3 fail final boolean canUseDefaultClass = defaultClass != null && type.getRawType().isAssignableFrom(defaultClass); final boolean typeIsInstantiable = DefaultRuntimeTypeAdapterFactory .isTypeInstatiable(type.getRawType()); final Class<? extends T> defautRuntimeClass = (Class<? extends T>) (typeIsInstantiable ? type.getRawType() : (canUseDefaultClass ? defaultClass : null)); return DefaultRuntimeTypeAdapterFactory.getRuntimeType(el, (Class<T>) type.getRawType(), defautRuntimeClass); } return null; }
From source file:edu.mit.media.funf.config.DefaultRuntimeTypeAdapterFactory.java
License:Open Source License
@Override public <T> TypeAdapter<T> create(final Gson gson, final TypeToken<T> type) { if (baseClass.isAssignableFrom(type.getRawType())) { return new TypeAdapter<T>() { @Override/* w ww .ja v a 2 s. c om*/ public void write(JsonWriter out, T value) throws IOException { if (value == null) { out.nullValue(); return; } // TODO: cache these only once per runtime type final TypeAdapter delegate = delegateFactory.create(gson, TypeToken.get(value.getClass())); JsonTreeWriter treeWriter = new JsonTreeWriter(); delegate.write(treeWriter, value); JsonElement el = treeWriter.get(); if (el.isJsonObject()) { JsonObject elObject = el.getAsJsonObject(); elObject.addProperty(RuntimeTypeAdapterFactory.TYPE, value.getClass().getName()); Streams.write(elObject, out); } else { Streams.write(el, out); } } @Override public T read(JsonReader in) throws IOException { // TODO: need to handle null JsonElement el = Streams.parse(in); Class<? extends T> runtimeType = getRuntimeType(el, type); if (runtimeType == null) { throw new ParseException("RuntimeTypeAdapter: Unable to parse runtime type."); } // TODO: cache these only once per runtime type final TypeAdapter<? extends T> delegate = delegateFactory.create(gson, TypeToken.get(runtimeType)); if (el.isJsonPrimitive() && el.getAsJsonPrimitive().isString()) { JsonObject typeObject = new JsonObject(); typeObject.addProperty(TYPE, el.getAsString()); el = typeObject; } return delegate.read(new JsonTreeReader(el)); } }; } return null; }
From source file:gobblin.util.io.GsonInterfaceAdapter.java
License:Apache License
@Override public <R> TypeAdapter<R> create(Gson gson, TypeToken<R> type) { if (ClassUtils.isPrimitiveOrWrapper(type.getRawType()) || type.getType() instanceof GenericArrayType || CharSequence.class.isAssignableFrom(type.getRawType()) || (type.getType() instanceof ParameterizedType && (Collection.class.isAssignableFrom(type.getRawType()) || Map.class.isAssignableFrom(type.getRawType())))) { // delegate primitives, arrays, collections, and maps return null; }/* w w w . j a va2 s .c om*/ if (!this.baseClass.isAssignableFrom(type.getRawType())) { // delegate anything not assignable from base class return null; } TypeAdapter<R> adapter = new InterfaceAdapter<>(gson, this, type); return adapter; }
From source file:io.barracks.ota.client.UpdateCheckService.java
License:Apache License
/** * {@inheritDoc}/*from ww w .ja va 2 s . co m*/ */ @Override public <T> TypeAdapter<T> create(Gson gson, TypeToken<T> type) { if (type.getRawType() == Bundle.class) { return (TypeAdapter<T>) getBundleAdapter(gson); } return null; }
From source file:io.github.rcarlosdasilva.weixin.core.json.CustomTypeAdapterFactory.java
@SuppressWarnings("unchecked") @Override//w w w .jav a 2 s . com public <T> TypeAdapter<T> create(Gson gson, TypeToken<T> type) { Class<? super T> clazz = type.getRawType(); if (clazz == MessageSendWithMassRequestUser.class) { return (TypeAdapter<T>) new MessageSendWithMassRequestUserTypeAdapter().nullSafe(); } else if (clazz == AccessTokenResponse.class) { return (TypeAdapter<T>) new AccessTokenResponseTypeAdapter().nullSafe(); } else if (clazz == OpenPlatformAuthAccessTokenResponse.class) { return (TypeAdapter<T>) new OpenPlatformAuthAccessTokenResponseTypeAdapter().nullSafe(); } else if (clazz == OpenPlatformAuthGetLicenseInformationResponse.class) { return (TypeAdapter<T>) new OpenPlatformAuthGetLicenseInformationResponseTypeAdapter().nullSafe(); } return null; }
From source file:io.hops.hopsworks.api.zeppelin.json.NotebookTypeAdapterFactory.java
License:Apache License
@SuppressWarnings("unchecked") // we use a runtime check to guarantee that 'C' and 'T' are equal public final <T> TypeAdapter<T> create(Gson gson, TypeToken<T> type) { return type.getRawType() == customizedClass ? (TypeAdapter<T>) customizeTypeAdapter(gson, (TypeToken<C>) type) : null;/*from w ww.j a v a2s. c om*/ }
From source file:io.prediction.workflow.JavaQueryTypeAdapterFactory.java
License:Apache License
@Override public <T> TypeAdapter<T> create(Gson gson, TypeToken<T> type) { if (type.getRawType().equals(JavaQuery.class)) { return (TypeAdapter<T>) new TypeAdapter<JavaQuery>() { public void write(JsonWriter out, JavaQuery value) throws IOException { if (value == null) { out.nullValue();/*w w w. ja va 2s . c om*/ } else { out.beginObject(); out.name("q").value(value.getQ().toUpperCase()); out.endObject(); } } public JavaQuery read(JsonReader reader) throws IOException { if (reader.peek() == JsonToken.NULL) { reader.nextNull(); return null; } else { reader.beginObject(); reader.nextName(); String q = reader.nextString(); reader.endObject(); return new JavaQuery(q.toUpperCase()); } } }; } else { return null; } }