com.jaredrummler.android.devices.DevicesToJson.java Source code

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/*
 * Copyright (C) 2015. Jared Rummler <me@jaredrummler.com>
 *
 * 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 com.jaredrummler.android.devices;

import com.google.gson.Gson;
import com.google.gson.GsonBuilder;

import org.apache.commons.io.FileUtils;

import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.TreeMap;

public class DevicesToJson {

    private static HashMap<String, List<Device>> getCodenames(List<Device> devices) {
        HashMap<String, List<Device>> codenames = new HashMap<>();
        for (Device device : devices) {
            List<Device> deviceList = codenames.get(device.codename);
            if (deviceList == null) {
                deviceList = new ArrayList<>();
            }
            deviceList.add(device);
            codenames.put(device.codename, deviceList);
        }
        return codenames;
    }

    private static List<Manufacturer> getManufacturers(List<Device> devices) {
        List<Manufacturer> manufacturers = new ArrayList<>();
        Map<String, List<Device>> map = new TreeMap<>();
        for (Device device : devices) {
            if (device.manufacturer == null || device.manufacturer.trim().length() == 0) {
                continue;
            }
            List<Device> deviceList = map.get(device.manufacturer);
            if (deviceList == null) {
                deviceList = new ArrayList<>();
            }
            deviceList.add(new Device(null, device.marketName, device.codename, device.model));
            map.put(device.manufacturer, deviceList);
        }
        for (Map.Entry<String, List<Device>> entry : map.entrySet()) {
            manufacturers.add(new Manufacturer(entry.getKey(), entry.getValue()));
        }
        return manufacturers;
    }

    private final List<Device> devices;

    private final Gson gson = new GsonBuilder().setPrettyPrinting().create();

    public DevicesToJson(List<Device> devices) {
        this.devices = devices;
    }

    public void createCodenamesJson(File dir) throws IOException {
        HashMap<String, List<Device>> codenames = getCodenames(devices);
        dir.mkdirs();
        for (Map.Entry<String, List<Device>> entry : codenames.entrySet()) {
            File file = new File(dir, entry.getKey() + ".json");
            String json = gson.toJson(entry.getValue());
            FileUtils.write(file, json);
        }
    }

    public void createManufacturersJson(File dir) throws IOException {
        List<Manufacturer> manufacturers = getManufacturers(devices);
        dir.mkdirs();
        for (Manufacturer manufacturer : manufacturers) {
            File file = new File(dir, manufacturer.getJsonFilename());
            String json = gson.toJson(manufacturer);
            FileUtils.write(file, json);
        }
    }

    public void createPopularDevicesJson(File destination) throws IOException {
        List<Device> popularDevices = new ArrayList<>();
        for (String deviceName : Constants.POPULAR_DEVICES) {
            for (Device device : devices) {
                if (device.marketName.equalsIgnoreCase(deviceName)) {
                    popularDevices.add(device);
                }
            }
        }
        FileUtils.write(destination, gson.toJson(popularDevices));
    }

    public void createDevicesJson(File destination) throws IOException {
        FileUtils.write(destination, gson.toJson(devices));
    }

}