/**
 *  Licensed 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.
 *
 *  See the NOTICE file distributed with this work for additional
 *  information regarding copyright ownership.
 */

package org.seaborne.dboe.transaction.txn;

import java.util.concurrent.atomic.AtomicLong ;

import org.apache.jena.atlas.lib.Bytes ;

/**
 *  Simple TxnId, mainly for debugging.
 */
public class TxnIdSimple implements TxnId {
    private static AtomicLong counter = new AtomicLong(0) ;
    
    static TxnIdSimple create() {
        return new TxnIdSimple(counter.incrementAndGet()) ; 
    }

    public static TxnIdSimple create(byte[] bytes) {
        return new TxnIdSimple(Bytes.getLong(bytes)) ;
    }

    private final long x ;
    
    /*package*/ TxnIdSimple(long x) { 
        this.x = x ; 
    }

    @Override
    public String name() {
        return String.format("0x%04X",x) ;
    }

    @Override
    public byte[] bytes() {
        return Bytes.packLong(x) ;
    }

    @Override
    public int hashCode() {
        return Long.hashCode(x) ;
    }

    @Override
    public boolean equals(Object obj) {
        if ( this == obj )
            return true ;
        if ( obj == null )
            return false ;
        if ( getClass() != obj.getClass() )
            return false ;
        TxnIdSimple other = (TxnIdSimple)obj ;
        if ( x != other.x )
            return false ;
        return true ;
    }
    
    @Override
    public String toString() {
        return "txn:"+x ;
    }

    @Override
    public long runtime() {
        return x ;
    }
}


/**
 *  Licensed 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.
 *
 *  See the NOTICE file distributed with this work for additional
 *  information regarding copyright ownership.
 */

package org.seaborne.dboe.transaction.txn;

import java.util.concurrent.atomic.AtomicLong ;

import org.apache.jena.atlas.lib.Bytes ;

/**
 *  Simple TxnId, mainly for debugging.
 */
public class TxnIdSimple implements TxnId {
    private static AtomicLong counter = new AtomicLong(0) ;
    
    static TxnIdSimple create() {
        return new TxnIdSimple(counter.incrementAndGet()) ; 
    }

    public static TxnIdSimple create(byte[] bytes) {
        return new TxnIdSimple(Bytes.getLong(bytes)) ;
    }

    private final long x ;
    
    public TxnIdSimple(long x) { 
        this.x = x ; 
    }

    @Override
    public String name() {
        return String.format("0x%04X",x) ;
    }

    @Override
    public byte[] bytes() {
        return Bytes.packLong(x) ;
    }

    @Override
    public int hashCode() {
        return Long.hashCode(x) ;
    }

    @Override
    public boolean equals(Object obj) {
        if ( this == obj )
            return true ;
        if ( obj == null )
            return false ;
        if ( getClass() != obj.getClass() )
            return false ;
        TxnIdSimple other = (TxnIdSimple)obj ;
        if ( x != other.x )
            return false ;
        return true ;
    }
    
    @Override
    public String toString() {
        return "txn:"+x ;
    }

    @Override
    public long runtime() {
        return x ;
    }
}


Allow direct creation.