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This SDK eases the development of Java applications and web services consuming the figo connect API. Figo connect allows developers simple access to users bank data on a trustworthy basis. Users can grant your application access to certain parts of their bank accounts and you can access them without worrying about the inner workings of online banking.

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//
// Copyright (c) 2013 figo GmbH
//
// 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 me.figo.internal;

import java.lang.reflect.Type;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;

import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import com.google.gson.JsonDeserializationContext;
import com.google.gson.JsonDeserializer;
import com.google.gson.JsonElement;
import com.google.gson.JsonParseException;
import com.google.gson.JsonPrimitive;
import com.google.gson.JsonSerializationContext;
import com.google.gson.JsonSerializer;

public class GsonAdapter {
    public static Gson createGson() {
        JsonSerializer serializer = new JsonSerializer() {
            @Override
            public JsonElement serialize(Date src, Type type, JsonSerializationContext context) {
                if (src == null)
                    return null;

                String formatted = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSZ").format(src);
                return new JsonPrimitive(formatted.substring(0, 22) + ":" + formatted.substring(22));
            }
        };

        JsonDeserializer deserializer = new JsonDeserializer() {
            @Override
            public Date deserialize(JsonElement json, Type type, JsonDeserializationContext context) throws JsonParseException {
                if (json == null)
                    return null;

                String s = json.getAsString().replace("Z", "+0000");
                try {
                    return new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSZZZZZ").parse(s);
                } catch (ParseException e) {
                    return null;
                }
            }
        };

        return new GsonBuilder().registerTypeAdapter(Date.class, serializer).registerTypeAdapter(Date.class, deserializer).excludeFieldsWithoutExposeAnnotation().create();
    }
}