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/*
 * Copyright 2016 Carlos Ballesteros Velasco
 *
 * 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.
 */

package java.util.concurrent.atomic;

public class AtomicLong extends Number implements java.io.Serializable {
    private volatile long value;

    public AtomicLong(long initialValue) {
        value = initialValue;
    }

    public AtomicLong() {
    }

    public final long get() {
        return value;
    }

    public final void set(long newValue) {
        value = newValue;
    }

    public final void lazySet(long newValue) {
        value = newValue;
    }

    public final long getAndSet(long newValue) {
        long old = this.value;
        this.value = newValue;
        return old;
    }

    private long _setAndSet(long newValue) {
        return this.value = newValue;
    }

    public final boolean compareAndSet(long expect, long update) {
        if (this.value == expect) {
            this.value = update;
            return true;
        } else {
            return false;
        }
    }

    public final boolean weakCompareAndSet(long expect, long update) {
        return compareAndSet(expect, update);
    }

    public final long getAndIncrement() {
        return getAndSet(this.value + 1);
    }

    public final long getAndDecrement() {
        return getAndSet(this.value - 1);
    }

    public final long getAndAdd(long delta) {
        return getAndSet(this.value + delta);
    }

    public final long incrementAndGet() {
        return _setAndSet(this.value + 1);
    }

    public final long decrementAndGet() {
        return _setAndSet(this.value - 1);
    }

    public final long addAndGet(long delta) {
        return _setAndSet(this.value + delta);
    }

    public String toString() {
        return Long.toString(get());
    }

    public int intValue() {
        return (int) get();
    }

    public long longValue() {
        return get();
    }

    public float floatValue() {
        return (float) get();
    }

    public double doubleValue() {
        return (double) get();
    }
}