List of usage examples for com.google.gson TypeAdapter TypeAdapter
TypeAdapter
From source file:me.albinmathew.celluloid.api.http.ItemTypeAdapterFactory.java
License:Apache License
@NonNull public <T> TypeAdapter<T> create(@NonNull Gson gson, final TypeToken<T> type) { final TypeAdapter<T> delegate = gson.getDelegateAdapter(this, type); final TypeAdapter<JsonElement> elementAdapter = gson.getAdapter(JsonElement.class); return new TypeAdapter<T>() { public void write(JsonWriter out, T value) throws IOException { delegate.write(out, value);//from ww w.j a va 2s .c o m } public T read(JsonReader in) throws IOException { JsonElement jsonElement = elementAdapter.read(in); return delegate.fromJsonTree(jsonElement); } }.nullSafe(); }
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 ww w . java 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:mx.openpay.client.serialization.OpenpayTypeAdapterFactory.java
License:Apache License
public TypeAdapter<C> getClassAdapter(final Gson gson, final TypeToken<C> type) { final TypeAdapter<C> delegate = gson.getDelegateAdapter(this, type); final TypeAdapter<JsonElement> elementAdapter = gson.getAdapter(JsonElement.class); return new TypeAdapter<C>() { @Override//w ww .j av a 2 s . c o m public void write(final JsonWriter out, final C value) throws IOException { JsonElement tree = delegate.toJsonTree(value); OpenpayTypeAdapterFactory.this.beforeWrite(value, tree); elementAdapter.write(out, tree); } @Override public C read(final JsonReader in) throws IOException { JsonElement tree = elementAdapter.read(in); OpenpayTypeAdapterFactory.this.afterRead(tree); return delegate.fromJsonTree(tree); } }; }
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; }//from w w w . jav a 2s.com 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); } }; }
From source file:net.chris54721.infinitycubed.utils.LowercaseEnumTypeAdapterFactory.java
License:Apache License
public <T> TypeAdapter<T> create(Gson gson, TypeToken<T> type) { @SuppressWarnings("unchecked") Class<T> rawType = (Class<T>) type.getRawType(); if (!rawType.isEnum()) { return null; }/*from w w w . j a v a 2 s . c om*/ final Map<String, T> lowercaseToConstant = new HashMap<String, T>(); for (T constant : rawType.getEnumConstants()) { lowercaseToConstant.put(toLowercase(constant), constant); } return new TypeAdapter<T>() { public void write(JsonWriter out, T value) throws IOException { if (value == null) { out.nullValue(); } else { out.value(toLowercase(value)); } } public T read(JsonReader reader) throws IOException { if (reader.peek() == JsonToken.NULL) { reader.nextNull(); return null; } else { return lowercaseToConstant.get(reader.nextString()); } } }; }
From source file:net.daporkchop.toobeetooteebot.text.EnumTypeAdapterFactory.java
License:Open Source License
public <T> TypeAdapter<T> create(Gson p_create_1_, TypeToken<T> p_create_2_) { Class<T> oclass = (Class<T>) p_create_2_.getRawType(); if (!oclass.isEnum()) { return null; } else {/*from w w w . j a v a 2 s.c o m*/ final Map<String, T> map = Maps.newHashMap(); for (T t : oclass.getEnumConstants()) { map.put(this.getName(t), t); } return new TypeAdapter<T>() { public void write(JsonWriter p_write_1_, T p_write_2_) throws IOException { if (p_write_2_ == null) { p_write_1_.nullValue(); } else { p_write_1_.value(EnumTypeAdapterFactory.this.getName(p_write_2_)); } } public T read(JsonReader p_read_1_) throws IOException { if (p_read_1_.peek() == JsonToken.NULL) { p_read_1_.nextNull(); return null; } else { return map.get(p_read_1_.nextString()); } } }; } }
From source file:net.feed_the_beast.launcher.json.EnumAdaptorFactory.java
License:Apache License
@SuppressWarnings("unchecked") @Override/*from www . jav a 2 s. com*/ public <T> TypeAdapter<T> create(Gson gson, TypeToken<T> type) { if (!type.getRawType().isEnum()) { return null; } final Map<String, T> map = Maps.newHashMap(); for (T c : (T[]) type.getRawType().getEnumConstants()) { map.put(c.toString().toLowerCase(Locale.US), c); } return new TypeAdapter<T>() { @Override public T read(JsonReader reader) throws IOException { if (reader.peek() == JsonToken.NULL) { reader.nextNull(); return null; } String name = reader.nextString(); if (name == null) { return null; } return map.get(name.toLowerCase(Locale.US)); } @Override public void write(JsonWriter writer, T value) throws IOException { if (value == null) { writer.nullValue(); } else { writer.value(value.toString().toLowerCase(Locale.US)); } } }; }
From source file:net.friendscraft_2_launch.launcher.json.EnumAdaptorFactory.java
License:Apache License
@SuppressWarnings("unchecked") @Override/*from ww w. j av a2 s. c o m*/ public <T> TypeAdapter<T> create(Gson gson, TypeToken<T> type) { if (!type.getRawType().isEnum()) return null; final Map<String, T> map = new HashMap<String, T>(); for (T c : (T[]) type.getRawType().getEnumConstants()) { map.put(c.toString().toLowerCase(Locale.US), c); } return new TypeAdapter<T>() { @Override public T read(JsonReader reader) throws IOException { if (reader.peek() == JsonToken.NULL) { reader.nextNull(); return null; } String name = reader.nextString(); if (name == null) return null; return map.get(name.toLowerCase(Locale.US)); } @Override public void write(JsonWriter writer, T value) throws IOException { if (value == null) { writer.nullValue(); } else { writer.value(value.toString().toLowerCase(Locale.US)); } } }; }
From source file:net.minecrell.workbench.tools.util.gson.LowerCaseEnumTypeAdapterFactory.java
License:Open Source License
@Override public <T> TypeAdapter<T> create(Gson gson, TypeToken<T> type) { @SuppressWarnings("unchecked") Class<T> rawType = (Class<T>) type.getRawType(); if (!rawType.isEnum()) { return null; }/* www .j av a 2 s. co m*/ final Map<String, T> lookup = new HashMap<>(); for (T constant : rawType.getEnumConstants()) { lookup.put(toLowerCase(constant), constant); } return new TypeAdapter<T>() { @Override public void write(JsonWriter out, T value) throws IOException { if (value == null) { out.nullValue(); } else { out.value(toLowerCase(value)); } } @Override public T read(JsonReader reader) throws IOException { if (reader.peek() == JsonToken.NULL) { reader.nextNull(); return null; } else { return lookup.get(reader.nextString()); } } }; }
From source file:net.segoia.event.eventbus.config.json.EventBusJsonConfigLoader.java
License:Apache License
public static EventBusJsonConfig load(Reader reader) { GsonBuilder gb = new GsonBuilder(); gb.registerTypeAdapter(Condition.class, new JsonDeserializer<Condition>() { @Override/*from w w w . j a v a 2s . com*/ public Condition deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context) throws JsonParseException { JsonObject jo = json.getAsJsonObject(); JsonElement conditionType = jo.get("ctype"); String ctype = null; if (conditionType != null) { ctype = conditionType.getAsString().trim(); if ("".equals(ctype)) { ctype = null; } } JsonDeserializer<?> deserializerForType = jsonDeserializers.get(ctype); if (deserializerForType == null) { throw new JsonParseException("No deserializer defined for condition type " + ctype); } return (Condition) deserializerForType.deserialize(json, typeOfT, context); } }); gb.registerTypeAdapterFactory(new TypeAdapterFactory() { @Override public <T> TypeAdapter<T> create(final Gson gson, final TypeToken<T> type) { final TypeAdapter<T> delegateAdapter = gson.getDelegateAdapter(this, type); TypeAdapter<T> typeAdapter = new TypeAdapter<T>() { @Override public void write(JsonWriter out, T value) throws IOException { delegateAdapter.write(out, value); } @Override public T read(JsonReader in) throws IOException { JsonElement value = Streams.parse(in); if (value.isJsonNull()) { return null; } if (!value.isJsonObject()) { return delegateAdapter.fromJsonTree(value); } // System.out.println(value+" "+value.getClass()); JsonObject jo = value.getAsJsonObject(); JsonElement cnameElem = jo.remove("className"); if (cnameElem != null) { String cname = cnameElem.getAsString(); try { // System.out.println("using clazz " + cname); return (T) gson.fromJson(value, Class.forName(cname)); } catch (ClassNotFoundException e) { // TODO Auto-generated catch block e.printStackTrace(); return null; } } else { return delegateAdapter.fromJsonTree(value); } } }; return typeAdapter; } }); final Gson gson = gb.create(); EventBusJsonConfig ebusConfig = gson.fromJson(reader, EventBusJsonConfig.class); return ebusConfig; }