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/**
 * The MIT License
 *
 * Copyright for portions of unirest-java are held by Kong Inc (c) 2013.
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

package kong.unirest.json;

import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import com.google.gson.TypeAdapter;
import com.google.gson.internal.LinkedTreeMap;
import com.google.gson.stream.JsonReader;
import com.google.gson.stream.JsonToken;
import com.google.gson.stream.JsonWriter;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;

class CoreFactory {
    private static final TypeAdapter ADAPTER = new JavaTypeAdapter();

    static GsonBuilder getCore() {
        return new GsonBuilder()
                .disableHtmlEscaping()
                .serializeNulls()
                .registerTypeAdapter(Map.class, ADAPTER)
                .registerTypeAdapter(List.class, ADAPTER);
    }

    static class JavaTypeAdapter extends TypeAdapter {

        private final TypeAdapter delegate = new Gson().getAdapter(Object.class);

        @Override
        public void write(JsonWriter out, Object value) throws IOException {
            delegate.write(out, value);
        }

        @Override
        public Object read(JsonReader in) throws IOException {
            JsonToken token = in.peek();
            switch (token) {
                case BEGIN_ARRAY:
                    List list = new ArrayList<>();
                    in.beginArray();
                    while (in.hasNext()) {
                        list.add(read(in));
                    }
                    in.endArray();
                    return list;

                case BEGIN_OBJECT:
                    Map map = new LinkedTreeMap<>();
                    in.beginObject();
                    while (in.hasNext()) {
                        map.put(in.nextName(), read(in));
                    }
                    in.endObject();
                    return map;

                case STRING:
                    return in.nextString();

                case NUMBER:
                    String n = in.nextString();
                    if (n.indexOf('.') != -1) {
                        return Double.parseDouble(n);
                    }
                    long l = Long.parseLong(n);
                    if(l < Integer.MAX_VALUE){
                        return (int)l;
                    }
                    return l;

                case BOOLEAN:
                    return in.nextBoolean();

                case NULL:
                    in.nextNull();
                    return null;

                default:
                    throw new IllegalStateException();
            }
        }
    }
}
 















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