org.akop.crosswords.model.Config.java Source code

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Here is the source code for org.akop.crosswords.model.Config.java

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// Copyright (c) 2014-2015 Akop Karapetyan
//
// 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 org.akop.crosswords.model;

import android.content.Context;
import android.content.res.Resources;

import com.google.gson.FieldNamingPolicy;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import com.google.gson.annotations.SerializedName;

import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.TreeMap;

public class Config {
    @SerializedName("sources")
    private List<PuzzleSource> mSources;
    private Map<String, PuzzleSource> mSourcesById;

    public Config() {
        mSources = new ArrayList<>();
    }

    public PuzzleSource getSource(String id) {
        if (mSourcesById == null) {
            mSourcesById = new TreeMap<>();
            for (PuzzleSource source : mSources) {
                mSourcesById.put(source.getId(), source);
            }
        }

        return mSourcesById.get(id);
    }

    public List<PuzzleSource> getSources() {
        return mSources;
    }

    public static Config createFromResource(Context context, int rawResourceId) {
        Resources res = context.getResources();
        InputStream is = res.openRawResource(rawResourceId);
        StringBuilder sb = new StringBuilder();

        try {
            InputStreamReader reader;
            try {
                reader = new InputStreamReader(is, "UTF-8");
            } catch (UnsupportedEncodingException e) {
                throw new RuntimeException(e);
            }

            int n;
            char[] buffer = new char[1024];

            try {
                while ((n = reader.read(buffer)) != -1) {
                    sb.append(buffer, 0, n);
                }
            } catch (IOException e) {
                throw new RuntimeException(e);
            }
        } finally {
            try {
                is.close();
            } catch (IOException e) {
            }
        }

        Gson gson = new GsonBuilder().setFieldNamingPolicy(FieldNamingPolicy.IDENTITY).create();

        return gson.fromJson(sb.toString(), Config.class);
    }
}