package com.google.gson.internal.bind;
import com.google.gson.Gson;
import com.google.gson.JsonDeserializationContext;
import com.google.gson.JsonDeserializer;
import com.google.gson.JsonElement;
import com.google.gson.JsonParseException;
import com.google.gson.JsonSerializationContext;
import com.google.gson.JsonSerializer;
import com.google.gson.TypeAdapter;
import com.google.gson.TypeAdapterFactory;
import com.google.gson.internal.$Gson$Preconditions;
import com.google.gson.internal.Streams;
import com.google.gson.reflect.TypeToken;
import com.google.gson.stream.JsonReader;
import com.google.gson.stream.JsonWriter;
import java.io.IOException;
import java.lang.reflect.Type;
public final class TreeTypeAdapter<T> extends TypeAdapter<T> {
private final JsonSerializer<T> serializer;
private final JsonDeserializer<T> deserializer;
final Gson gson;
private final TypeToken<T> typeToken;
private final TypeAdapterFactory skipPast;
private final GsonContextImpl context = new GsonContextImpl();
private TypeAdapter<T> delegate;
public TreeTypeAdapter(JsonSerializer<T> serializer, JsonDeserializer<T> deserializer,
Gson gson, TypeToken<T> typeToken, TypeAdapterFactory skipPast) {
this.serializer = serializer;
this.deserializer = deserializer;
this.gson = gson;
this.typeToken = typeToken;
this.skipPast = skipPast;
}
@Override public T read(JsonReader in) throws IOException {
if (deserializer == null) {
return delegate().read(in);
}
JsonElement value = Streams.parse(in);
if (value.isJsonNull()) {
return null;
}
return deserializer.deserialize(value, typeToken.getType(), context);
}
@Override public void write(JsonWriter out, T value) throws IOException {
if (serializer == null) {
delegate().write(out, value);
return;
}
if (value == null) {
out.nullValue();
return;
}
JsonElement tree = serializer.serialize(value, typeToken.getType(), context);
Streams.write(tree, out);
}
private TypeAdapter<T> delegate() {
TypeAdapter<T> d = delegate;
return d != null
? d
: (delegate = gson.getDelegateAdapter(skipPast, typeToken));
}
public static TypeAdapterFactory newFactory(TypeToken<?> exactType, Object typeAdapter) {
return new SingleTypeFactory(typeAdapter, exactType, false, null);
}
public static TypeAdapterFactory newFactoryWithMatchRawType(
TypeToken<?> exactType, Object typeAdapter) {
boolean matchRawType = exactType.getType() == exactType.getRawType();
return new SingleTypeFactory(typeAdapter, exactType, matchRawType, null);
}
public static TypeAdapterFactory newTypeHierarchyFactory(
Class<?> hierarchyType, Object typeAdapter) {
return new SingleTypeFactory(typeAdapter, null, false, hierarchyType);
}
private static final class SingleTypeFactory implements TypeAdapterFactory {
private final TypeToken<?> exactType;
private final boolean matchRawType;
private final Class<?> hierarchyType;
private final JsonSerializer<?> serializer;
private final JsonDeserializer<?> deserializer;
SingleTypeFactory(Object typeAdapter, TypeToken<?> exactType, boolean matchRawType,
Class<?> hierarchyType) {
serializer = typeAdapter instanceof JsonSerializer
? (JsonSerializer<?>) typeAdapter
: null;
deserializer = typeAdapter instanceof JsonDeserializer
? (JsonDeserializer<?>) typeAdapter
: null;
$Gson$Preconditions.checkArgument(serializer != null || deserializer != null);
this.exactType = exactType;
this.matchRawType = matchRawType;
this.hierarchyType = hierarchyType;
}
@SuppressWarnings("unchecked")
@Override
public <T> TypeAdapter<T> create(Gson gson, TypeToken<T> type) {
boolean matches = exactType != null
? exactType.equals(type) || matchRawType && exactType.getType() == type.getRawType()
: hierarchyType.isAssignableFrom(type.getRawType());
return matches
? new TreeTypeAdapter<T>((JsonSerializer<T>) serializer,
(JsonDeserializer<T>) deserializer, gson, type, this)
: null;
}
}
private final class GsonContextImpl implements JsonSerializationContext, JsonDeserializationContext {
@Override public JsonElement serialize(Object src) {
return gson.toJsonTree(src);
}
@Override public JsonElement serialize(Object src, Type typeOfSrc) {
return gson.toJsonTree(src, typeOfSrc);
}
@SuppressWarnings("unchecked")
@Override public <R> R deserialize(JsonElement json, Type typeOfT) throws JsonParseException {
return (R) gson.fromJson(json, typeOfT);
}
};
}