/*
 * Copyright (c) 2014, The TridentSDK Team
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     1. Redistributions of source code must retain the above copyright
 *        notice, this list of conditions and the following disclaimer.
 *     2. Redistributions in binary form must reproduce the above copyright
 *        notice, this list of conditions and the following disclaimer in the
 *        documentation and/or other materials provided with the distribution.
 *     3. Neither the name of the The TridentSDK Team nor the
 *        names of its contributors may be used to endorse or promote products
 *        derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL The TridentSDK Team BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package net.tridentsdk.world;

import java.io.File;
import java.io.IOException;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;

/**
 * A (simple) cache for RegionFiles
 */
public class RegionFileCache {

    private final Map<File, RegionFile> regionFiles = new ConcurrentHashMap<>();

    public RegionFile getRegionFile(File serverDirectory, int chunkX, int chunkZ) {
        int actualX = chunkX >> 5;
        int actualZ = chunkZ >> 5;

        File regionDir = new File(serverDirectory, "region");
        File actualFile = new File(regionDir, "r." + actualX + "." + actualZ + ".mca");

        RegionFile file = this.regionFiles.get(actualFile);

        if (file == null) {
            if (!regionDir.exists()) {
                regionDir.mkdirs();
            }

            try {
                file = new RegionFile(actualFile);
            } catch (IOException e) {
                e.printStackTrace();
            }
            this.regionFiles.put(actualFile, file);
        }

        return file;
    }
}

/*
 * Copyright (c) 2014, The TridentSDK Team
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     1. Redistributions of source code must retain the above copyright
 *        notice, this list of conditions and the following disclaimer.
 *     2. Redistributions in binary form must reproduce the above copyright
 *        notice, this list of conditions and the following disclaimer in the
 *        documentation and/or other materials provided with the distribution.
 *     3. Neither the name of the The TridentSDK Team nor the
 *        names of its contributors may be used to endorse or promote products
 *        derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL The TridentSDK Team BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package net.tridentsdk.world;

import java.io.File;
import java.io.IOException;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import java.util.zip.DataFormatException;

import net.tridentsdk.api.nbt.NBTException;

/**
 * A (simple) cache for RegionFiles
 */
public class RegionFileCache {

    private final Map<File, RegionFile> regionFiles = new ConcurrentHashMap<>();

    public RegionFile getRegionFile(File serverDirectory, int chunkX, int chunkZ) {
        int actualX = chunkX >> 5;
        int actualZ = chunkZ >> 5;

        File regionDir = new File(serverDirectory, "region");
        File actualFile = new File(regionDir, "r." + actualX + "." + actualZ + ".mca");

        RegionFile file = this.regionFiles.get(actualFile);

        if (file == null) {
            if (!regionDir.exists()) {
                regionDir.mkdirs();
            }

            try {
                file = new RegionFile(actualFile);
            } catch (IOException | DataFormatException | NBTException e) {
                e.printStackTrace();
            }
            this.regionFiles.put(actualFile, file);
        }

        return file;
    }
}

Fix compilation error: Unhandled exceptions