com.kickstarter.libs.AutoParcelAdapterFactory.java Source code

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Here is the source code for com.kickstarter.libs.AutoParcelAdapterFactory.java

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/*
 * Copyright 2014 Jake Wharton
 *
 * 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.
 *
 * ***
 *
 * Original: https://gist.github.com/jakewharton/0d67d01badcee0ae7bc9
 * Modifications: Some modifiers and annotations have been added by Kickstarter.
 */

package com.kickstarter.libs;

import android.support.annotation.NonNull;

import com.google.gson.Gson;
import com.google.gson.TypeAdapter;
import com.google.gson.TypeAdapterFactory;
import com.google.gson.reflect.TypeToken;
import com.kickstarter.libs.qualifiers.AutoGson;

public final class AutoParcelAdapterFactory implements TypeAdapterFactory {
    @SuppressWarnings("unchecked")
    @Override
    public <T> TypeAdapter<T> create(final @NonNull Gson gson, final @NonNull TypeToken<T> type) {
        final Class<? super T> rawType = type.getRawType();
        if (!rawType.isAnnotationPresent(AutoGson.class)) {
            return null;
        }

        final String packageName = rawType.getPackage().getName();
        final String className = rawType.getName().substring(packageName.length() + 1).replace('$', '_');
        final String autoParcelName = packageName + ".AutoParcel_" + className;

        try {
            final Class<?> autoParcelType = Class.forName(autoParcelName);
            return (TypeAdapter<T>) gson.getAdapter(autoParcelType);
        } catch (final ClassNotFoundException e) {
            throw new RuntimeException("Could not load AutoParcel type " + autoParcelName, e);
        }
    }
}