com.enonic.cms.framework.util.UUIDGenerator.java Source code

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Here is the source code for com.enonic.cms.framework.util.UUIDGenerator.java

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/*
 * Copyright 2000-2011 Enonic AS
 * http://www.enonic.com/license
 */
package com.enonic.cms.framework.util;

import java.io.ByteArrayOutputStream;
import java.io.DataOutputStream;
import java.util.UUID;

import org.apache.commons.codec.binary.Hex;

/**
 * This class generates a compact uuid.
 */
public final class UUIDGenerator {
    /**
     * Generate random uuid.
     */
    public static String randomUUID() {
        UUID uuid = UUID.randomUUID();

        try {
            ByteArrayOutputStream out = new ByteArrayOutputStream();
            DataOutputStream dataOut = new DataOutputStream(out);
            dataOut.writeLong(uuid.getMostSignificantBits());
            dataOut.writeLong(uuid.getLeastSignificantBits());
            dataOut.close();
            return new String(Hex.encodeHex(out.toByteArray()));
        } catch (Exception e) {
            return uuid.toString();
        }
    }
}