List of usage examples for com.google.gson.internal.bind TypeAdapters STRING
TypeAdapter STRING
To view the source code for com.google.gson.internal.bind TypeAdapters STRING.
Click Source Link
From source file:com.flipkart.batching.gson.adapters.BatchingTypeAdapters.java
License:Open Source License
private static void write(Gson gson, JsonWriter out, @Nullable Object value) throws IOException { if (value == null) { out.nullValue();/*from w w w.j a va 2 s . c o m*/ } else if (value instanceof JSONObject) { getJSONObjectTypeAdapter(gson).write(out, (JSONObject) value); } else if (value instanceof JSONArray) { getJSONArrayTypeAdapter(gson).write(out, (JSONArray) value); } else if (value instanceof String) { TypeAdapters.STRING.write(out, (String) value); } else if (value instanceof Number) { TypeAdapters.NUMBER.write(out, (Number) value); } else if (value instanceof Boolean) { TypeAdapters.BOOLEAN.write(out, (Boolean) value); } else { gson.toJson(value, value.getClass(), out); } }
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 w w . j a va 2 s .co 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(); }