Util.java

/*
 * The MIT License (MIT)
 *
 * Copyright (c) 2014 Cayde Dixon
 *
 * 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 net.cazzar.mods.jukeboxreloaded.lib.util;

import net.minecraft.tileentity.TileEntity;
import net.minecraft.util.BlockPos;
import net.minecraft.world.IBlockAccess;

import java.io.*;
import java.net.URL;

public class Util {
    public static void copyStream(InputStream input, OutputStream output) {
        try {
            final byte data[] = new byte[8192];
            int count;
            while ((count = input.read(data, 0, 8192)) != -1)
                output.write(data, 0, count);
        } catch (final IOException e) {
            throw new RuntimeException(e);
        }
    }

    public static void saveUrl(String filename, URL url)
            throws IOException {
        //noinspection ResultOfMethodCallIgnored
        new File(filename).getParentFile().mkdirs();
        BufferedInputStream in = null;
        FileOutputStream fout = null;
        try {
            in = new BufferedInputStream(url.openStream());
            fout = new FileOutputStream(filename);
            copyStream(in, fout);
        } finally {
            if (in != null) in.close();
            if (fout != null) fout.close();
        }
    }

    public static <T extends TileEntity> T getTileEntity(IBlockAccess world, int x, int y, int z, Class<? extends T> tileClass) {
        TileEntity tileEntity = world.getTileEntity(new BlockPos(x, y, z));
        if (tileEntity == null) return null;
        if (tileEntity.getClass().isAssignableFrom(tileClass)) //noinspection unchecked
            return (T) tileEntity;
        return null;
    }
}