/**

  * Copyright (c) 2011-2013, ReXSL.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 ReXSL.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.rexsl.w3c;

 import com.jcabi.aspects.Loggable;

 import com.rexsl.test.TestResponse;

 import java.net.URI;

 import javax.validation.constraints.NotNull;

 import javax.ws.rs.core.MediaType;

 import lombok.EqualsAndHashCode;

 import lombok.ToString;

 /**

  * Implementation of (X)HTML validator.

  *

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

  * @version $Id$

  * @see <a href="http://validator.w3.org/docs/api.html">W3C API</a>

  */

 @ToString

 @EqualsAndHashCode(callSuper = false, of = "uri")

 @Loggable(Loggable.DEBUG)

 final class DefaultHtmlValidator extends BaseValidator implements Validator {

     /**

      * The URI to use in W3C.

      */

     private final transient URI uri;

     /**

      * Public ctor with default entry point.

      */

     public DefaultHtmlValidator() {

         this(URI.create("http://validator.w3.org/check"));

     }

     /**

      * Public ctor.

      * @param entry Entry point to use

      */

     public DefaultHtmlValidator(@NotNull final URI entry) {

         super();

         this.uri = entry;

     }

     /**

      * {@inheritDoc}

      */

     @Override

     @NotNull

     @SuppressWarnings("PMD.AvoidCatchingThrowable")

     public ValidationResponse validate(@NotNull final String html) {

         DefaultValidationResponse response;

         try {

             final TestResponse soap = this

                 .send(

                     this.uri,

                     this.entity("uploaded_file", html, MediaType.TEXT_HTML)

             )

                 .registerNs("env", "http://www.w3.org/2003/05/soap-envelope")

                 .registerNs("m", "http://www.w3.org/2005/10/markup-validator")

                 .assertThat(

                     new RetryPolicy(

                         "/env:Envelope/env:Body/m:markupvalidationresponse"

                     )

                 )

                 .assertXPath("//m:validity")

                 .assertXPath("//m:checkedby")

                 .assertXPath("//m:doctype")

                 .assertXPath("//m:charset");

             response = this.build(soap);

         } catch (AssertionError ex) {

             response = this.success(ex.getMessage());

         // @checkstyle IllegalCatchCheck (1 line)

         } catch (Throwable ex) {

             response = this.failure(ex);

         }

         return response;

     }

 }