/**

  * Copyright (c) 2014, stateful.co

  * All rights reserved.

  *

  * Redistribution and use in source and binary forms, with or without

  * modification, are permitted provided that the following conditions

  * are met: 1) Redistributions of source code must retain the above

  * copyright notice, this list of conditions and the following

  * disclaimer. 2) Redistributions in binary form must reproduce the above

  * copyright notice, this list of conditions and the following

  * disclaimer in the documentation and/or other materials provided

  * with the distribution. 3) Neither the name of the stateful.co nor

  * the names of its contributors may be used to endorse or promote

  * products derived from this software without specific prior written

  * permission.

  *

  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT

  * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND

  * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL

  * THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,

  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES

  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR

  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,

  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED

  * OF THE POSSIBILITY OF SUCH DAMAGE.

  */

 package co.stateful.quota;

 import co.stateful.spi.Locks;

 import com.jcabi.aspects.Immutable;

 import com.jcabi.aspects.Loggable;

 import java.io.IOException;

 import java.util.Map;

 import lombok.EqualsAndHashCode;

 import lombok.ToString;

 /**

  * Quota on Locks.

  *

  * @author Yegor Bugayenko (yegor@tpc2.com)

  * @version $Id$

  * @since 1.4

  */

 @Immutable

 @ToString

 @EqualsAndHashCode(of = { "origin", "quota" })

 @Loggable(Loggable.DEBUG)

 public final class QtLocks implements Locks {

     /**

      * Original object.

      */

     private final transient Locks origin;

     /**

      * Quota to use.

      */

     private final transient Quota quota;

     /**

      * Ctor.

      * @param org Original object

      * @param qta Quota

      */

     public QtLocks(final Locks org, final Quota qta) {

         this.origin = org;

         this.quota = qta;

     }

     @Override

     public Map<String, String> names() throws IOException {

         this.quota.use("names");

         return this.origin.names();

     }

     @Override

     public String lock(final String name, final String label)

         throws IOException {

         this.quota.use("lock");

         return this.origin.lock(name, label);

     }

     @Override

     public void unlock(final String name) throws IOException {

         this.quota.use("unlock");

         this.origin.unlock(name);

     }

     @Override

     public String unlock(final String name, final String label)

         throws IOException {

         this.quota.use("unlock-if");

         return this.origin.unlock(name, label);

     }

 }