src/main/decaf/util/UUID.h

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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifndef _DECAF_UTIL_UUID_H_
#define _DECAF_UTIL_UUID_H_

#include <decaf/util/Config.h>
#include <decaf/lang/Comparable.h>
#include <decaf/lang/exceptions/UnsupportedOperationException.h>
#include <decaf/lang/exceptions/IllegalArgumentException.h>
#include <apr_uuid.h>
#include <string>

namespace decaf{
namespace util{

    class DECAF_API UUID : public lang::Comparable<UUID> {
    private:

        // APR Uuid Type
        apr_uuid_t apr_uuid;

        // Copy of the High part of the data
        unsigned long long mostSigBits;

        // Copy of the Low part of the data
        unsigned long long leastSigBits;

        // Version indicator, set when a UUID is generated
        int uuidVersion;

    public:

        static UUID randomUUID();

        static UUID nameUUIDFromBytes( const std::vector<char>& name );

        static UUID nameUUIDFromBytes( const char* name, std::size_t size );

        static UUID fromString( const std::string& name );

    public:

        UUID( long long mostSigBits, long long leastSigBits );

        virtual ~UUID();

        virtual int compareTo( const UUID& value ) const;

        virtual bool equals( const UUID& value ) const;

        virtual bool operator==( const UUID& value ) const;

        virtual bool operator<( const UUID& value ) const;

        virtual std::string toString() const;

        virtual long long getLeastSignificantBits() const;

        virtual long long getMostSignificantBits() const;

        virtual long long node();

        virtual long long timestamp();

        virtual int clockSequence();

        virtual int variant();

        virtual int version();

    };

}}

#endif /*_DECAF_UTIL_UUID_H_*/