/*
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* Copyright (C) 2011 Google Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package cn.emay.sdk.util.json.gson.internal.bind;
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import java.io.IOException;
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import java.math.BigDecimal;
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import java.math.BigInteger;
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import java.net.InetAddress;
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import java.net.URI;
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import java.net.URISyntaxException;
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import java.net.URL;
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import java.sql.Timestamp;
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import java.util.ArrayList;
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import java.util.BitSet;
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import java.util.Calendar;
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import java.util.Currency;
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import java.util.Date;
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import java.util.GregorianCalendar;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Locale;
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import java.util.Map;
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import java.util.StringTokenizer;
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import java.util.UUID;
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import java.util.concurrent.atomic.AtomicBoolean;
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import java.util.concurrent.atomic.AtomicInteger;
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import java.util.concurrent.atomic.AtomicIntegerArray;
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import cn.emay.sdk.util.json.gson.Gson;
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import cn.emay.sdk.util.json.gson.JsonArray;
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import cn.emay.sdk.util.json.gson.JsonElement;
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import cn.emay.sdk.util.json.gson.JsonIOException;
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import cn.emay.sdk.util.json.gson.JsonNull;
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import cn.emay.sdk.util.json.gson.JsonObject;
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import cn.emay.sdk.util.json.gson.JsonPrimitive;
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import cn.emay.sdk.util.json.gson.JsonSyntaxException;
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import cn.emay.sdk.util.json.gson.TypeAdapter;
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import cn.emay.sdk.util.json.gson.TypeAdapterFactory;
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import cn.emay.sdk.util.json.gson.annotations.SerializedName;
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import cn.emay.sdk.util.json.gson.internal.LazilyParsedNumber;
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import cn.emay.sdk.util.json.gson.reflect.TypeToken;
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import cn.emay.sdk.util.json.gson.stream.JsonReader;
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import cn.emay.sdk.util.json.gson.stream.JsonToken;
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import cn.emay.sdk.util.json.gson.stream.JsonWriter;
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/**
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* Type adapters for basic types.
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*/
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public final class TypeAdapters {
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private TypeAdapters() {
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throw new UnsupportedOperationException();
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}
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@SuppressWarnings("rawtypes")
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public static final TypeAdapter<Class> CLASS = new TypeAdapter<Class>() {
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@Override
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public void write(JsonWriter out, Class value) throws IOException {
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if (value == null) {
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out.nullValue();
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} else {
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throw new UnsupportedOperationException("Attempted to serialize java.lang.Class: " + value.getName() + ". Forgot to register a type adapter?");
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}
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}
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@Override
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public Class read(JsonReader in) throws IOException {
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if (in.peek() == JsonToken.NULL) {
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in.nextNull();
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return null;
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} else {
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throw new UnsupportedOperationException("Attempted to deserialize a java.lang.Class. Forgot to register a type adapter?");
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}
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}
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};
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public static final TypeAdapterFactory CLASS_FACTORY = newFactory(Class.class, CLASS);
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public static final TypeAdapter<BitSet> BIT_SET = new TypeAdapter<BitSet>() {
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@Override
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public BitSet read(JsonReader in) throws IOException {
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if (in.peek() == JsonToken.NULL) {
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in.nextNull();
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return null;
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}
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BitSet bitset = new BitSet();
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in.beginArray();
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int i = 0;
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JsonToken tokenType = in.peek();
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while (tokenType != JsonToken.END_ARRAY) {
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boolean set;
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switch (tokenType) {
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case NUMBER:
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set = in.nextInt() != 0;
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break;
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case BOOLEAN:
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set = in.nextBoolean();
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break;
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case STRING:
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String stringValue = in.nextString();
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try {
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set = Integer.parseInt(stringValue) != 0;
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} catch (NumberFormatException e) {
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throw new JsonSyntaxException("Error: Expecting: bitset number value (1, 0), Found: " + stringValue);
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}
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break;
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default:
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throw new JsonSyntaxException("Invalid bitset value type: " + tokenType);
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}
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if (set) {
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bitset.set(i);
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}
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++i;
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tokenType = in.peek();
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}
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in.endArray();
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return bitset;
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}
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@Override
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public void write(JsonWriter out, BitSet src) throws IOException {
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if (src == null) {
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out.nullValue();
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return;
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}
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out.beginArray();
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for (int i = 0; i < src.length(); i++) {
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int value = (src.get(i)) ? 1 : 0;
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out.value(value);
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}
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out.endArray();
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}
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};
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public static final TypeAdapterFactory BIT_SET_FACTORY = newFactory(BitSet.class, BIT_SET);
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public static final TypeAdapter<Boolean> BOOLEAN = new TypeAdapter<Boolean>() {
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@Override
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public Boolean read(JsonReader in) throws IOException {
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if (in.peek() == JsonToken.NULL) {
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in.nextNull();
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return null;
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} else if (in.peek() == JsonToken.STRING) {
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// support strings for compatibility with GSON 1.7
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return Boolean.parseBoolean(in.nextString());
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}
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return in.nextBoolean();
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}
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@Override
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public void write(JsonWriter out, Boolean value) throws IOException {
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if (value == null) {
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out.nullValue();
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return;
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}
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out.value(value);
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}
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};
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/**
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* Writes a boolean as a string. Useful for map keys, where booleans aren't
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* otherwise permitted.
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*/
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public static final TypeAdapter<Boolean> BOOLEAN_AS_STRING = new TypeAdapter<Boolean>() {
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@Override
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public Boolean read(JsonReader in) throws IOException {
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if (in.peek() == JsonToken.NULL) {
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in.nextNull();
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return null;
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}
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return Boolean.valueOf(in.nextString());
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}
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@Override
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public void write(JsonWriter out, Boolean value) throws IOException {
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out.value(value == null ? "null" : value.toString());
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}
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};
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public static final TypeAdapterFactory BOOLEAN_FACTORY = newFactory(boolean.class, Boolean.class, BOOLEAN);
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public static final TypeAdapter<Number> BYTE = new TypeAdapter<Number>() {
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@Override
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public Number read(JsonReader in) throws IOException {
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if (in.peek() == JsonToken.NULL) {
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in.nextNull();
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return null;
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}
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try {
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int intValue = in.nextInt();
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return (byte) intValue;
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} catch (NumberFormatException e) {
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throw new JsonSyntaxException(e);
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}
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}
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@Override
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public void write(JsonWriter out, Number value) throws IOException {
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out.value(value);
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}
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};
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public static final TypeAdapterFactory BYTE_FACTORY = newFactory(byte.class, Byte.class, BYTE);
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public static final TypeAdapter<Number> SHORT = new TypeAdapter<Number>() {
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@Override
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public Number read(JsonReader in) throws IOException {
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if (in.peek() == JsonToken.NULL) {
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in.nextNull();
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return null;
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}
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try {
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return (short) in.nextInt();
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} catch (NumberFormatException e) {
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throw new JsonSyntaxException(e);
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}
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}
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@Override
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public void write(JsonWriter out, Number value) throws IOException {
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out.value(value);
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}
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};
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public static final TypeAdapterFactory SHORT_FACTORY = newFactory(short.class, Short.class, SHORT);
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public static final TypeAdapter<Number> INTEGER = new TypeAdapter<Number>() {
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@Override
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public Number read(JsonReader in) throws IOException {
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if (in.peek() == JsonToken.NULL) {
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in.nextNull();
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return null;
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}
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try {
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return in.nextInt();
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} catch (NumberFormatException e) {
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throw new JsonSyntaxException(e);
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}
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}
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@Override
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public void write(JsonWriter out, Number value) throws IOException {
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out.value(value);
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}
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};
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public static final TypeAdapterFactory INTEGER_FACTORY = newFactory(int.class, Integer.class, INTEGER);
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public static final TypeAdapter<AtomicInteger> ATOMIC_INTEGER = new TypeAdapter<AtomicInteger>() {
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@Override
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public AtomicInteger read(JsonReader in) throws IOException {
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try {
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return new AtomicInteger(in.nextInt());
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} catch (NumberFormatException e) {
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throw new JsonSyntaxException(e);
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}
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}
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@Override
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public void write(JsonWriter out, AtomicInteger value) throws IOException {
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out.value(value.get());
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}
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}.nullSafe();
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public static final TypeAdapterFactory ATOMIC_INTEGER_FACTORY = newFactory(AtomicInteger.class, TypeAdapters.ATOMIC_INTEGER);
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public static final TypeAdapter<AtomicBoolean> ATOMIC_BOOLEAN = new TypeAdapter<AtomicBoolean>() {
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@Override
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public AtomicBoolean read(JsonReader in) throws IOException {
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return new AtomicBoolean(in.nextBoolean());
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}
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@Override
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public void write(JsonWriter out, AtomicBoolean value) throws IOException {
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out.value(value.get());
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}
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}.nullSafe();
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public static final TypeAdapterFactory ATOMIC_BOOLEAN_FACTORY = newFactory(AtomicBoolean.class, TypeAdapters.ATOMIC_BOOLEAN);
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public static final TypeAdapter<AtomicIntegerArray> ATOMIC_INTEGER_ARRAY = new TypeAdapter<AtomicIntegerArray>() {
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@Override
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public AtomicIntegerArray read(JsonReader in) throws IOException {
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List<Integer> list = new ArrayList<Integer>();
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in.beginArray();
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while (in.hasNext()) {
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try {
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int integer = in.nextInt();
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list.add(integer);
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} catch (NumberFormatException e) {
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throw new JsonSyntaxException(e);
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}
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}
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in.endArray();
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int length = list.size();
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AtomicIntegerArray array = new AtomicIntegerArray(length);
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for (int i = 0; i < length; ++i) {
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array.set(i, list.get(i));
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}
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return array;
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}
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@Override
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public void write(JsonWriter out, AtomicIntegerArray value) throws IOException {
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out.beginArray();
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for (int i = 0, length = value.length(); i < length; i++) {
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out.value(value.get(i));
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}
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out.endArray();
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}
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}.nullSafe();
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public static final TypeAdapterFactory ATOMIC_INTEGER_ARRAY_FACTORY = newFactory(AtomicIntegerArray.class, TypeAdapters.ATOMIC_INTEGER_ARRAY);
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public static final TypeAdapter<Number> LONG = new TypeAdapter<Number>() {
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@Override
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public Number read(JsonReader in) throws IOException {
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if (in.peek() == JsonToken.NULL) {
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in.nextNull();
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return null;
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}
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try {
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return in.nextLong();
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} catch (NumberFormatException e) {
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throw new JsonSyntaxException(e);
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}
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}
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@Override
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public void write(JsonWriter out, Number value) throws IOException {
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out.value(value);
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}
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};
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public static final TypeAdapter<Number> FLOAT = new TypeAdapter<Number>() {
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@Override
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public Number read(JsonReader in) throws IOException {
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if (in.peek() == JsonToken.NULL) {
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in.nextNull();
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return null;
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}
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return (float) in.nextDouble();
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}
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@Override
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public void write(JsonWriter out, Number value) throws IOException {
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out.value(value);
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}
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};
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public static final TypeAdapter<Number> DOUBLE = new TypeAdapter<Number>() {
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@Override
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public Number read(JsonReader in) throws IOException {
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if (in.peek() == JsonToken.NULL) {
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in.nextNull();
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return null;
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}
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return in.nextDouble();
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}
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@Override
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public void write(JsonWriter out, Number value) throws IOException {
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out.value(value);
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}
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};
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public static final TypeAdapter<Number> NUMBER = new TypeAdapter<Number>() {
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@Override
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public Number read(JsonReader in) throws IOException {
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JsonToken jsonToken = in.peek();
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switch (jsonToken) {
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case NULL:
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in.nextNull();
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return null;
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case NUMBER:
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return new LazilyParsedNumber(in.nextString());
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default:
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throw new JsonSyntaxException("Expecting number, got: " + jsonToken);
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}
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}
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@Override
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public void write(JsonWriter out, Number value) throws IOException {
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out.value(value);
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}
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};
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public static final TypeAdapterFactory NUMBER_FACTORY = newFactory(Number.class, NUMBER);
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public static final TypeAdapter<Character> CHARACTER = new TypeAdapter<Character>() {
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@Override
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public Character read(JsonReader in) throws IOException {
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if (in.peek() == JsonToken.NULL) {
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in.nextNull();
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return null;
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}
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String str = in.nextString();
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if (str.length() != 1) {
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throw new JsonSyntaxException("Expecting character, got: " + str);
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}
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return str.charAt(0);
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}
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@Override
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public void write(JsonWriter out, Character value) throws IOException {
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out.value(value == null ? null : String.valueOf(value));
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}
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};
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public static final TypeAdapterFactory CHARACTER_FACTORY = newFactory(char.class, Character.class, CHARACTER);
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public static final TypeAdapter<String> STRING = new TypeAdapter<String>() {
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@Override
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public String read(JsonReader in) throws IOException {
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JsonToken peek = in.peek();
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if (peek == JsonToken.NULL) {
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in.nextNull();
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return null;
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}
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/* coerce booleans to strings for backwards compatibility */
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if (peek == JsonToken.BOOLEAN) {
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return Boolean.toString(in.nextBoolean());
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}
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return in.nextString();
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}
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@Override
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public void write(JsonWriter out, String value) throws IOException {
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out.value(value);
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}
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};
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public static final TypeAdapter<BigDecimal> BIG_DECIMAL = new TypeAdapter<BigDecimal>() {
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@Override
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public BigDecimal read(JsonReader in) throws IOException {
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if (in.peek() == JsonToken.NULL) {
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in.nextNull();
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return null;
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}
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try {
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return new BigDecimal(in.nextString());
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} catch (NumberFormatException e) {
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throw new JsonSyntaxException(e);
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}
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}
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@Override
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public void write(JsonWriter out, BigDecimal value) throws IOException {
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out.value(value);
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}
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};
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public static final TypeAdapter<BigInteger> BIG_INTEGER = new TypeAdapter<BigInteger>() {
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@Override
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public BigInteger read(JsonReader in) throws IOException {
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if (in.peek() == JsonToken.NULL) {
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in.nextNull();
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return null;
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}
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try {
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return new BigInteger(in.nextString());
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} catch (NumberFormatException e) {
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throw new JsonSyntaxException(e);
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}
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}
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@Override
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public void write(JsonWriter out, BigInteger value) throws IOException {
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out.value(value);
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}
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};
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public static final TypeAdapterFactory STRING_FACTORY = newFactory(String.class, STRING);
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public static final TypeAdapter<StringBuilder> STRING_BUILDER = new TypeAdapter<StringBuilder>() {
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@Override
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public StringBuilder read(JsonReader in) throws IOException {
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if (in.peek() == JsonToken.NULL) {
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in.nextNull();
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return null;
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}
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return new StringBuilder(in.nextString());
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}
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@Override
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public void write(JsonWriter out, StringBuilder value) throws IOException {
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out.value(value == null ? null : value.toString());
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}
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};
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public static final TypeAdapterFactory STRING_BUILDER_FACTORY = newFactory(StringBuilder.class, STRING_BUILDER);
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public static final TypeAdapter<StringBuffer> STRING_BUFFER = new TypeAdapter<StringBuffer>() {
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@Override
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public StringBuffer read(JsonReader in) throws IOException {
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if (in.peek() == JsonToken.NULL) {
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in.nextNull();
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return null;
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}
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return new StringBuffer(in.nextString());
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}
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@Override
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public void write(JsonWriter out, StringBuffer value) throws IOException {
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out.value(value == null ? null : value.toString());
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}
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};
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public static final TypeAdapterFactory STRING_BUFFER_FACTORY = newFactory(StringBuffer.class, STRING_BUFFER);
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public static final TypeAdapter<URL> URL = new TypeAdapter<URL>() {
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@Override
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public URL read(JsonReader in) throws IOException {
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if (in.peek() == JsonToken.NULL) {
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in.nextNull();
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return null;
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}
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String nextString = in.nextString();
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return "null".equals(nextString) ? null : new URL(nextString);
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}
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@Override
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public void write(JsonWriter out, URL value) throws IOException {
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out.value(value == null ? null : value.toExternalForm());
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}
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};
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public static final TypeAdapterFactory URL_FACTORY = newFactory(URL.class, URL);
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public static final TypeAdapter<URI> URI = new TypeAdapter<URI>() {
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@Override
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public URI read(JsonReader in) throws IOException {
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if (in.peek() == JsonToken.NULL) {
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in.nextNull();
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return null;
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}
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try {
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String nextString = in.nextString();
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return "null".equals(nextString) ? null : new URI(nextString);
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} catch (URISyntaxException e) {
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throw new JsonIOException(e);
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}
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}
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@Override
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public void write(JsonWriter out, URI value) throws IOException {
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out.value(value == null ? null : value.toASCIIString());
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}
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};
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public static final TypeAdapterFactory URI_FACTORY = newFactory(URI.class, URI);
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public static final TypeAdapter<InetAddress> INET_ADDRESS = new TypeAdapter<InetAddress>() {
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@Override
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public InetAddress read(JsonReader in) throws IOException {
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if (in.peek() == JsonToken.NULL) {
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in.nextNull();
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return null;
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}
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// regrettably, this should have included both the host name and the host
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// address
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return InetAddress.getByName(in.nextString());
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}
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@Override
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public void write(JsonWriter out, InetAddress value) throws IOException {
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out.value(value == null ? null : value.getHostAddress());
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}
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};
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public static final TypeAdapterFactory INET_ADDRESS_FACTORY = newTypeHierarchyFactory(InetAddress.class, INET_ADDRESS);
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public static final TypeAdapter<UUID> UUID = new TypeAdapter<UUID>() {
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@Override
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public UUID read(JsonReader in) throws IOException {
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if (in.peek() == JsonToken.NULL) {
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in.nextNull();
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return null;
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}
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return java.util.UUID.fromString(in.nextString());
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}
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@Override
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public void write(JsonWriter out, UUID value) throws IOException {
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out.value(value == null ? null : value.toString());
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}
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};
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public static final TypeAdapterFactory UUID_FACTORY = newFactory(UUID.class, UUID);
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public static final TypeAdapter<Currency> CURRENCY = new TypeAdapter<Currency>() {
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@Override
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public Currency read(JsonReader in) throws IOException {
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return Currency.getInstance(in.nextString());
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}
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@Override
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public void write(JsonWriter out, Currency value) throws IOException {
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out.value(value.getCurrencyCode());
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}
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}.nullSafe();
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public static final TypeAdapterFactory CURRENCY_FACTORY = newFactory(Currency.class, CURRENCY);
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public static final TypeAdapterFactory TIMESTAMP_FACTORY = new TypeAdapterFactory() {
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@SuppressWarnings("unchecked") // we use a runtime check to make sure the 'T's equal
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@Override
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public <T> TypeAdapter<T> create(Gson gson, TypeToken<T> typeToken) {
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if (typeToken.getRawType() != Timestamp.class) {
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return null;
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}
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final TypeAdapter<Date> dateTypeAdapter = gson.getAdapter(Date.class);
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return (TypeAdapter<T>) new TypeAdapter<Timestamp>() {
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@Override
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public Timestamp read(JsonReader in) throws IOException {
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Date date = dateTypeAdapter.read(in);
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return date != null ? new Timestamp(date.getTime()) : null;
|
}
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@Override
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public void write(JsonWriter out, Timestamp value) throws IOException {
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dateTypeAdapter.write(out, value);
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}
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};
|
}
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};
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public static final TypeAdapter<Calendar> CALENDAR = new TypeAdapter<Calendar>() {
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private static final String YEAR = "year";
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private static final String MONTH = "month";
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private static final String DAY_OF_MONTH = "dayOfMonth";
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private static final String HOUR_OF_DAY = "hourOfDay";
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private static final String MINUTE = "minute";
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private static final String SECOND = "second";
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@Override
|
public Calendar read(JsonReader in) throws IOException {
|
if (in.peek() == JsonToken.NULL) {
|
in.nextNull();
|
return null;
|
}
|
in.beginObject();
|
int year = 0;
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int month = 0;
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int dayOfMonth = 0;
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int hourOfDay = 0;
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int minute = 0;
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int second = 0;
|
while (in.peek() != JsonToken.END_OBJECT) {
|
String name = in.nextName();
|
int value = in.nextInt();
|
if (YEAR.equals(name)) {
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year = value;
|
} else if (MONTH.equals(name)) {
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month = value;
|
} else if (DAY_OF_MONTH.equals(name)) {
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dayOfMonth = value;
|
} else if (HOUR_OF_DAY.equals(name)) {
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hourOfDay = value;
|
} else if (MINUTE.equals(name)) {
|
minute = value;
|
} else if (SECOND.equals(name)) {
|
second = value;
|
}
|
}
|
in.endObject();
|
return new GregorianCalendar(year, month, dayOfMonth, hourOfDay, minute, second);
|
}
|
|
@Override
|
public void write(JsonWriter out, Calendar value) throws IOException {
|
if (value == null) {
|
out.nullValue();
|
return;
|
}
|
out.beginObject();
|
out.name(YEAR);
|
out.value(value.get(Calendar.YEAR));
|
out.name(MONTH);
|
out.value(value.get(Calendar.MONTH));
|
out.name(DAY_OF_MONTH);
|
out.value(value.get(Calendar.DAY_OF_MONTH));
|
out.name(HOUR_OF_DAY);
|
out.value(value.get(Calendar.HOUR_OF_DAY));
|
out.name(MINUTE);
|
out.value(value.get(Calendar.MINUTE));
|
out.name(SECOND);
|
out.value(value.get(Calendar.SECOND));
|
out.endObject();
|
}
|
};
|
|
public static final TypeAdapterFactory CALENDAR_FACTORY = newFactoryForMultipleTypes(Calendar.class, GregorianCalendar.class, CALENDAR);
|
|
public static final TypeAdapter<Locale> LOCALE = new TypeAdapter<Locale>() {
|
@Override
|
public Locale read(JsonReader in) throws IOException {
|
if (in.peek() == JsonToken.NULL) {
|
in.nextNull();
|
return null;
|
}
|
String locale = in.nextString();
|
StringTokenizer tokenizer = new StringTokenizer(locale, "_");
|
String language = null;
|
String country = null;
|
String variant = null;
|
if (tokenizer.hasMoreElements()) {
|
language = tokenizer.nextToken();
|
}
|
if (tokenizer.hasMoreElements()) {
|
country = tokenizer.nextToken();
|
}
|
if (tokenizer.hasMoreElements()) {
|
variant = tokenizer.nextToken();
|
}
|
if (country == null && variant == null) {
|
return new Locale(language);
|
} else if (variant == null) {
|
return new Locale(language, country);
|
} else {
|
return new Locale(language, country, variant);
|
}
|
}
|
|
@Override
|
public void write(JsonWriter out, Locale value) throws IOException {
|
out.value(value == null ? null : value.toString());
|
}
|
};
|
|
public static final TypeAdapterFactory LOCALE_FACTORY = newFactory(Locale.class, LOCALE);
|
|
public static final TypeAdapter<JsonElement> JSON_ELEMENT = new TypeAdapter<JsonElement>() {
|
@Override
|
public JsonElement read(JsonReader in) throws IOException {
|
switch (in.peek()) {
|
case STRING:
|
return new JsonPrimitive(in.nextString());
|
case NUMBER:
|
String number = in.nextString();
|
return new JsonPrimitive(new LazilyParsedNumber(number));
|
case BOOLEAN:
|
return new JsonPrimitive(in.nextBoolean());
|
case NULL:
|
in.nextNull();
|
return JsonNull.INSTANCE;
|
case BEGIN_ARRAY:
|
JsonArray array = new JsonArray();
|
in.beginArray();
|
while (in.hasNext()) {
|
array.add(read(in));
|
}
|
in.endArray();
|
return array;
|
case BEGIN_OBJECT:
|
JsonObject object = new JsonObject();
|
in.beginObject();
|
while (in.hasNext()) {
|
object.add(in.nextName(), read(in));
|
}
|
in.endObject();
|
return object;
|
case END_DOCUMENT:
|
case NAME:
|
case END_OBJECT:
|
case END_ARRAY:
|
default:
|
throw new IllegalArgumentException();
|
}
|
}
|
|
@Override
|
public void write(JsonWriter out, JsonElement value) throws IOException {
|
if (value == null || value.isJsonNull()) {
|
out.nullValue();
|
} else if (value.isJsonPrimitive()) {
|
JsonPrimitive primitive = value.getAsJsonPrimitive();
|
if (primitive.isNumber()) {
|
out.value(primitive.getAsNumber());
|
} else if (primitive.isBoolean()) {
|
out.value(primitive.getAsBoolean());
|
} else {
|
out.value(primitive.getAsString());
|
}
|
|
} else if (value.isJsonArray()) {
|
out.beginArray();
|
for (JsonElement e : value.getAsJsonArray()) {
|
write(out, e);
|
}
|
out.endArray();
|
|
} else if (value.isJsonObject()) {
|
out.beginObject();
|
for (Map.Entry<String, JsonElement> e : value.getAsJsonObject().entrySet()) {
|
out.name(e.getKey());
|
write(out, e.getValue());
|
}
|
out.endObject();
|
|
} else {
|
throw new IllegalArgumentException("Couldn't write " + value.getClass());
|
}
|
}
|
};
|
|
public static final TypeAdapterFactory JSON_ELEMENT_FACTORY = newTypeHierarchyFactory(JsonElement.class, JSON_ELEMENT);
|
|
private static final class EnumTypeAdapter<T extends Enum<T>> extends TypeAdapter<T> {
|
private final Map<String, T> nameToConstant = new HashMap<String, T>();
|
private final Map<T, String> constantToName = new HashMap<T, String>();
|
|
public EnumTypeAdapter(Class<T> classOfT) {
|
try {
|
for (T constant : classOfT.getEnumConstants()) {
|
String name = constant.name();
|
SerializedName annotation = classOfT.getField(name).getAnnotation(SerializedName.class);
|
if (annotation != null) {
|
name = annotation.value();
|
for (String alternate : annotation.alternate()) {
|
nameToConstant.put(alternate, constant);
|
}
|
}
|
nameToConstant.put(name, constant);
|
constantToName.put(constant, name);
|
}
|
} catch (NoSuchFieldException e) {
|
throw new AssertionError("Missing field in " + classOfT.getName());
|
}
|
}
|
|
@Override
|
public T read(JsonReader in) throws IOException {
|
if (in.peek() == JsonToken.NULL) {
|
in.nextNull();
|
return null;
|
}
|
return nameToConstant.get(in.nextString());
|
}
|
|
@Override
|
public void write(JsonWriter out, T value) throws IOException {
|
out.value(value == null ? null : constantToName.get(value));
|
}
|
}
|
|
public static final TypeAdapterFactory ENUM_FACTORY = new TypeAdapterFactory() {
|
@SuppressWarnings({ "rawtypes", "unchecked" })
|
@Override
|
public <T> TypeAdapter<T> create(Gson gson, TypeToken<T> typeToken) {
|
Class<? super T> rawType = typeToken.getRawType();
|
if (!Enum.class.isAssignableFrom(rawType) || rawType == Enum.class) {
|
return null;
|
}
|
if (!rawType.isEnum()) {
|
rawType = rawType.getSuperclass(); // handle anonymous subclasses
|
}
|
return (TypeAdapter<T>) new EnumTypeAdapter(rawType);
|
}
|
};
|
|
public static <TT> TypeAdapterFactory newFactory(final TypeToken<TT> type, final TypeAdapter<TT> typeAdapter) {
|
return new TypeAdapterFactory() {
|
@SuppressWarnings("unchecked") // we use a runtime check to make sure the 'T's equal
|
@Override
|
public <T> TypeAdapter<T> create(Gson gson, TypeToken<T> typeToken) {
|
return typeToken.equals(type) ? (TypeAdapter<T>) typeAdapter : null;
|
}
|
};
|
}
|
|
public static <TT> TypeAdapterFactory newFactory(final Class<TT> type, final TypeAdapter<TT> typeAdapter) {
|
return new TypeAdapterFactory() {
|
@SuppressWarnings("unchecked") // we use a runtime check to make sure the 'T's equal
|
@Override
|
public <T> TypeAdapter<T> create(Gson gson, TypeToken<T> typeToken) {
|
return typeToken.getRawType() == type ? (TypeAdapter<T>) typeAdapter : null;
|
}
|
|
@Override
|
public String toString() {
|
return "Factory[type=" + type.getName() + ",adapter=" + typeAdapter + "]";
|
}
|
};
|
}
|
|
public static <TT> TypeAdapterFactory newFactory(final Class<TT> unboxed, final Class<TT> boxed, final TypeAdapter<? super TT> typeAdapter) {
|
return new TypeAdapterFactory() {
|
@SuppressWarnings("unchecked") // we use a runtime check to make sure the 'T's equal
|
@Override
|
public <T> TypeAdapter<T> create(Gson gson, TypeToken<T> typeToken) {
|
Class<? super T> rawType = typeToken.getRawType();
|
return (rawType == unboxed || rawType == boxed) ? (TypeAdapter<T>) typeAdapter : null;
|
}
|
|
@Override
|
public String toString() {
|
return "Factory[type=" + boxed.getName() + "+" + unboxed.getName() + ",adapter=" + typeAdapter + "]";
|
}
|
};
|
}
|
|
public static <TT> TypeAdapterFactory newFactoryForMultipleTypes(final Class<TT> base, final Class<? extends TT> sub, final TypeAdapter<? super TT> typeAdapter) {
|
return new TypeAdapterFactory() {
|
@SuppressWarnings("unchecked") // we use a runtime check to make sure the 'T's equal
|
@Override
|
public <T> TypeAdapter<T> create(Gson gson, TypeToken<T> typeToken) {
|
Class<? super T> rawType = typeToken.getRawType();
|
return (rawType == base || rawType == sub) ? (TypeAdapter<T>) typeAdapter : null;
|
}
|
|
@Override
|
public String toString() {
|
return "Factory[type=" + base.getName() + "+" + sub.getName() + ",adapter=" + typeAdapter + "]";
|
}
|
};
|
}
|
|
/**
|
* Returns a factory for all subtypes of {@code typeAdapter}. We do a runtime
|
* check to confirm that the deserialized type matches the type requested.
|
*/
|
public static <T1> TypeAdapterFactory newTypeHierarchyFactory(final Class<T1> clazz, final TypeAdapter<T1> typeAdapter) {
|
return new TypeAdapterFactory() {
|
@SuppressWarnings("unchecked")
|
@Override
|
public <T2> TypeAdapter<T2> create(Gson gson, TypeToken<T2> typeToken) {
|
final Class<? super T2> requestedType = typeToken.getRawType();
|
if (!clazz.isAssignableFrom(requestedType)) {
|
return null;
|
}
|
return (TypeAdapter<T2>) new TypeAdapter<T1>() {
|
@Override
|
public void write(JsonWriter out, T1 value) throws IOException {
|
typeAdapter.write(out, value);
|
}
|
|
@Override
|
public T1 read(JsonReader in) throws IOException {
|
T1 result = typeAdapter.read(in);
|
if (result != null && !requestedType.isInstance(result)) {
|
throw new JsonSyntaxException("Expected a " + requestedType.getName() + " but was " + result.getClass().getName());
|
}
|
return result;
|
}
|
};
|
}
|
|
@Override
|
public String toString() {
|
return "Factory[typeHierarchy=" + clazz.getName() + ",adapter=" + typeAdapter + "]";
|
}
|
};
|
}
|
}
|
