org.cryptomator.crypto.aes256.LongFilenameMetadata.java Source code

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Here is the source code for org.cryptomator.crypto.aes256.LongFilenameMetadata.java

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/*******************************************************************************
 * Copyright (c) 2014 Sebastian Stenzel
 * This file is licensed under the terms of the MIT license.
 * See the LICENSE.txt file for more info.
 * 
 * Contributors:
 *     Sebastian Stenzel - initial API and implementation
 ******************************************************************************/
package org.cryptomator.crypto.aes256;

import java.io.Serializable;
import java.util.UUID;

import org.apache.commons.collections4.BidiMap;
import org.apache.commons.collections4.bidimap.DualHashBidiMap;

import com.fasterxml.jackson.databind.annotation.JsonDeserialize;

class LongFilenameMetadata implements Serializable {

    private static final long serialVersionUID = 6214509403824421320L;

    @JsonDeserialize(as = DualHashBidiMap.class)
    private BidiMap<UUID, String> encryptedFilenames = new DualHashBidiMap<>();

    /* Getter/Setter */

    public synchronized String getEncryptedFilenameForUUID(final UUID uuid) {
        return encryptedFilenames.get(uuid);
    }

    public synchronized UUID getOrCreateUuidForEncryptedFilename(String encryptedFilename) {
        UUID uuid = encryptedFilenames.getKey(encryptedFilename);
        if (uuid == null) {
            uuid = UUID.randomUUID();
            encryptedFilenames.put(uuid, encryptedFilename);
        }
        return uuid;
    }

    public BidiMap<UUID, String> getEncryptedFilenames() {
        return encryptedFilenames;
    }

    public void setEncryptedFilenames(BidiMap<UUID, String> encryptedFilenames) {
        this.encryptedFilenames = encryptedFilenames;
    }

}