retrofit.KGsonConverterFactory.java Source code

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Here is the source code for retrofit.KGsonConverterFactory.java

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/*
 * Copyright (C) 2015 Square, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package retrofit;

import com.google.gson.Gson;
import com.google.gson.TypeAdapter;
import com.google.gson.reflect.TypeToken;
import com.kubeiwu.easyandroid.cache.volleycache.Cache;
import com.kubeiwu.easyandroid.cache.volleycache.DiskBasedCache;

import java.lang.reflect.Type;

/** A {@linkplain Converter.Factory converter} which uses Gson for JSON. */
public final class KGsonConverterFactory implements Converter.Factory {
    /**
     * Create an instance using a default {@link Gson} instance for conversion. Encoding to JSON and decoding from JSON (when no charset is specified by a header) will use UTF-8.
     */
    public static KGsonConverterFactory create() {
        return create(new Gson(), null);
    }

    /**
     * Create an instance using {@code gson} for conversion. Encoding to JSON and decoding from JSON (when no charset is specified by a header) will use UTF-8.
     */
    public static KGsonConverterFactory create(Gson gson, Cache cache) {
        return new KGsonConverterFactory(gson, cache);
    }

    public static KGsonConverterFactory create(Cache cache) {
        return create(new Gson(), cache);
    }

    private final Gson gson;
    private final Cache cache;

    private KGsonConverterFactory(Gson gson, Cache cache) {
        if (gson == null)
            throw new NullPointerException("gson == null");
        this.gson = gson;
        this.cache = cache;
    }

    /** Create a converter for {@code type}. */
    @Override
    public Converter<?> get(Type type) {
        TypeAdapter<?> adapter = gson.getAdapter(TypeToken.get(type));
        return new KGsonConverter<>(adapter, cache);
    }
}