org.getspout.spoutapi.packet.PacketSendPrecache.java Source code

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Here is the source code for org.getspout.spoutapi.packet.PacketSendPrecache.java

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/*
 * This file is part of SpoutPlugin.
 *
 * Copyright (c) 2011 Spout LLC <http://www.spout.org/>
 * SpoutPlugin is licensed under the GNU Lesser General Public License.
 *
 * SpoutPlugin is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * SpoutPlugin is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.getspout.spoutapi.packet;

import java.io.File;
import java.io.IOException;
import java.util.zip.DataFormatException;
import java.util.zip.Deflater;
import java.util.zip.Inflater;

import org.apache.commons.io.FileUtils;
import org.apache.commons.io.output.ByteArrayOutputStream;
import org.bukkit.plugin.Plugin;
import org.getspout.spoutapi.io.SpoutInputStream;
import org.getspout.spoutapi.io.SpoutOutputStream;

public class PacketSendPrecache implements CompressiblePacket {
    private byte[] fileData;
    private String plugin;
    private String version;
    private boolean compressed = false;

    public PacketSendPrecache() {
    }

    public PacketSendPrecache(Plugin plugin, File file) {
        try {
            this.fileData = FileUtils.readFileToByteArray(file);
        } catch (IOException e) {
            e.printStackTrace();
        }
        this.plugin = plugin.getDescription().getName();
        this.version = plugin.getDescription().getVersion();
    }

    // TODO Move to separate thread?
    public void compress() {
        if (!compressed) {
            Deflater deflater = new Deflater();
            deflater.setInput(fileData);
            deflater.setLevel(Deflater.BEST_COMPRESSION);
            deflater.finish();
            ByteArrayOutputStream bos = new ByteArrayOutputStream(fileData.length);
            byte[] buffer = new byte[1024];
            while (!deflater.finished()) {
                int bytesCompressed = deflater.deflate(buffer);
                bos.write(buffer, 0, bytesCompressed);
            }
            try {
                bos.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
            fileData = bos.toByteArray();
            compressed = true;
        }
    }

    public void decompress() {
        if (compressed) {
            Inflater decompressor = new Inflater();
            decompressor.setInput(fileData);
            ByteArrayOutputStream bos = new ByteArrayOutputStream(fileData.length);
            byte[] buf = new byte[1024];
            while (!decompressor.finished()) {
                try {
                    int count = decompressor.inflate(buf);
                    bos.write(buf, 0, count);
                } catch (DataFormatException e) {
                }
            }
            try {
                bos.close();
            } catch (IOException e) {
            }
            fileData = bos.toByteArray();
        }
    }

    public boolean isCompressed() {
        return compressed;
    }

    @Override
    public void readData(SpoutInputStream input) throws IOException {
        this.plugin = input.readString();
        this.version = input.readString();
        compressed = input.readBoolean();
        int size = input.readInt();
        this.fileData = new byte[size];
        input.read(fileData);
    }

    @Override
    public void writeData(SpoutOutputStream output) throws IOException {
        output.writeString(plugin);
        output.writeString(version);
        output.writeBoolean(compressed);
        output.writeInt(fileData.length);
        output.write(fileData);
    }

    @Override
    public void run(int playerId) {
    }

    @Override
    public void failure(int playerId) {
    }

    @Override
    public PacketType getPacketType() {
        return PacketType.PacketSendPrecache;
    }

    @Override
    public int getVersion() {
        return 0;
    }
}