/**

  * Copyright (c) 2011-2017, 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.http.mock;

 import com.jcabi.aspects.Loggable;

 import com.jcabi.aspects.RetryOnFailure;

 import com.jcabi.log.Logger;

 import com.sun.grizzly.http.embed.GrizzlyWebServer;

 import java.io.IOException;

 import java.net.ServerSocket;

 import java.net.URI;

 import java.util.Collection;

 import lombok.EqualsAndHashCode;

 import org.hamcrest.Matcher;

 import org.hamcrest.core.IsAnything;

 /**

  * Implementation of {@link MkContainer} based on Grizzly Server.

  *

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

  * @version $Id: 8d7dd7b6f69ccc7309054b094d710d6af59c44db $

  * @since 0.10

  * @see MkContainer

  * @checkstyle TooManyMethods (200 lines)

  */

 @SuppressWarnings("PMD.TooManyMethods")

 @EqualsAndHashCode(of = { "adapter", "gws", "port" })

 @Loggable(Loggable.DEBUG)

 public final class MkGrizzlyContainer implements MkContainer {

     /**

      * Grizzly adapter.

      */

     private final transient MkGrizzlyAdapter adapter =

         new MkGrizzlyAdapter();

     /**

      * Grizzly container.

      */

     private transient GrizzlyWebServer gws;

     /**

      * Port where it works.

      */

     private transient int port;

     @Override

     public MkContainer next(final MkAnswer answer) {

         return this.next(answer, new IsAnything<MkQuery>());

     }

     @Override

     public MkContainer next(final MkAnswer answer,

         final Matcher<MkQuery> condition) {

         return this.next(answer, condition, 1);

     }

     @Override

     public MkContainer next(final MkAnswer answer,

         final Matcher<MkQuery> condition, final int count) {

         this.adapter.next(answer, condition, count);

         return this;

     }

     @Override

     public MkQuery take() {

         return this.adapter.take();

     }

     @Override

     public MkQuery take(final Matcher<MkAnswer> matcher) {

         return this.adapter.take(matcher);

     }

     @Override

     public Collection<MkQuery> takeAll(final Matcher<MkAnswer> matcher) {

         return this.adapter.takeAll(matcher);

     }

     @Override

     public int queries() {

         return this.adapter.queries();

     }

     @Override

     public MkContainer start() throws IOException {

         return this.start(MkGrizzlyContainer.reserve());

     }

     @Override

     public MkContainer start(final int prt) throws IOException {

         if (this.port != 0) {

             throw new IllegalStateException(

                 String.format(

                     "already listening on port %d, use #stop() first",

                     this.port

                 )

             );

         }

         this.port = prt;

         this.gws = new GrizzlyWebServer(this.port);

         this.gws.addGrizzlyAdapter(this.adapter, new String[] {"/"});

         this.gws.start();

         Logger.info(this, "started on port #%s", prt);

         return this;

     }

     @Override

     public void stop() {

         if (this.gws != null) {

             this.gws.stop();

         }

         Logger.info(this, "stopped on port #%s", this.port);

         this.port = 0;

     }

     @Override

     public URI home() {

         return URI.create(

             String.format("http://localhost:%d/", this.port)

         );

     }

     @Override

     public void close() {

         this.stop();

     }

     /**

      * Reserve port.

      * @return Reserved TCP port

      * @throws IOException If fails

      */

     @RetryOnFailure

     private static int reserve() throws IOException {

         final int reserved;

         try (final ServerSocket socket = new ServerSocket(0)) {

             reserved = socket.getLocalPort();

         }

         return reserved;

     }

 }