/**

  * Copyright (c) 2012-2015, jcabi.com

  * 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 jcabi.com 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 com.jcabi.s3.cached;

 import com.amazonaws.services.s3.model.ObjectMetadata;

 import com.jcabi.aspects.Cacheable;

 import com.jcabi.aspects.Immutable;

 import com.jcabi.aspects.Loggable;

 import com.jcabi.s3.Bucket;

 import com.jcabi.s3.Ocket;

 import java.io.ByteArrayOutputStream;

 import java.io.IOException;

 import java.io.InputStream;

 import java.io.OutputStream;

 import lombok.EqualsAndHashCode;

 /**

  * Cached ocket.

  *

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

  * @version $Id: 1fd00739747a295b7bb8af7d5941e2b706d16b74 $

  * @since 0.8

  */

 @Immutable

 @EqualsAndHashCode(of = "origin")

 @Loggable(Loggable.DEBUG)

 public final class CdOcket implements Ocket {

     /**

      * Original ocket.

      */

     private final transient Ocket origin;

     /**

      * Public ctor.

      * @param okt Ocket original

      */

     public CdOcket(final Ocket okt) {

         this.origin = okt;

     }

     @Override

     public Bucket bucket() {

         return new CdBucket(this.origin.bucket());

     }

     @Override

     public String key() {

         return this.origin.key();

     }

     @Override

     public ObjectMetadata meta() throws IOException {

         return this.origin.meta();

     }

     @Override

     @Cacheable

     public boolean exists() throws IOException {

         return this.origin.exists();

     }

     @Override

     public void read(final OutputStream output) throws IOException {

         output.write(this.read());

     }

     @Override

     @Cacheable.FlushAfter

     public void write(final InputStream input, final ObjectMetadata meta)

         throws IOException {

         this.origin.write(input, meta);

     }

     @Override

     public int compareTo(final Ocket ocket) {

         return this.origin.compareTo(ocket);

     }

     /**

      * Read byte array.

      * @return Bytes

      * @throws IOException If fails

      */

     @Cacheable

     private byte[] read() throws IOException {

         final ByteArrayOutputStream baos = new ByteArrayOutputStream();

         this.origin.read(baos);

         return baos.toByteArray();

     }

 }