/**

  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.

  *

  * Copyright 2013-2014 Oracle and/or its affiliates. All rights reserved.

  *

  * Oracle and Java are registered trademarks of Oracle and/or its affiliates.

  * Other names may be trademarks of their respective owners.

  *

  * The contents of this file are subject to the terms of either the GNU

  * General Public License Version 2 only ("GPL") or the Common

  * Development and Distribution License("CDDL") (collectively, the

  * "License"). You may not use this file except in compliance with the

  * License. You can obtain a copy of the License at

  * http://www.netbeans.org/cddl-gplv2.html

  * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the

  * specific language governing permissions and limitations under the

  * License.  When distributing the software, include this License Header

  * Notice in each file and include the License file at

  * nbbuild/licenses/CDDL-GPL-2-CP.  Oracle designates this

  * particular file as subject to the "Classpath" exception as provided

  * by Oracle in the GPL Version 2 section of the License file that

  * accompanied this code. If applicable, add the following below the

  * License Header, with the fields enclosed by brackets [] replaced by

  * your own identifying information:

  * "Portions Copyrighted [year] [name of copyright owner]"

  *

  * Contributor(s):

  *

  * The Original Software is NetBeans. The Initial Developer of the Original

  * Software is Oracle. Portions Copyright 2013-2014 Oracle. All Rights Reserved.

  *

  * If you wish your version of this file to be governed by only the CDDL

  * or only the GPL Version 2, indicate your decision by adding

  * "[Contributor] elects to include this software in this distribution

  * under the [CDDL or GPL Version 2] license." If you do not indicate a

  * single choice of license, a recipient has the option to distribute

  * your version of this file under either the CDDL, the GPL Version 2 or

  * to extend the choice of license to its licensees as provided above.

  * However, if you add GPL Version 2 code and therefore, elected the GPL

  * Version 2 license, then the option applies only if the new code is

  * made subject to such option by the copyright holder.

  */

 package org.netbeans.html.context.impl;

 import java.util.ArrayList;

 import java.util.Collections;

 import java.util.List;

 import net.java.html.BrwsrCtx;

 /** Implementation detail. Holds list of technologies for particular

  * {@link BrwsrCtx}.

  *

  * @author Jaroslav Tulach <jaroslav.tulach@apidesign.org>

  */

 public final class CtxImpl {

     private final List<Bind<?>> techs;

     public CtxImpl() {

         techs = new ArrayList<Bind<?>>();

     }

     private CtxImpl(List<Bind<?>> techs) {

         this.techs = techs;

     }

     public static <Tech> Tech find(BrwsrCtx context, Class<Tech> technology) {

         CtxImpl impl = CtxAccssr.getDefault().find(context);

         for (Bind<?> bind : impl.techs) {

             if (technology == bind.clazz) {

                 return technology.cast(bind.impl);

             }

         }

         return null;

     }

     public BrwsrCtx build() {

         Collections.sort(techs);

         CtxImpl impl = new CtxImpl(Collections.unmodifiableList(techs));

         return CtxAccssr.getDefault().newContext(impl);

     }

     public <Tech> void register(Class<Tech> type, Tech impl, int priority) {

         techs.add(new Bind<Tech>(type, impl, priority));

     }

     private static final class Bind<Tech> implements Comparable<Bind<?>> {

         private final Class<Tech> clazz;

         private final Tech impl;

         private final int priority;

         public Bind(Class<Tech> clazz, Tech impl, int priority) {

             this.clazz = clazz;

             this.impl = impl;

             this.priority = priority;

         }

         @Override

         public int compareTo(Bind<?> o) {

             if (priority != o.priority) {

                 return priority - o.priority;

             }

             return clazz.getName().compareTo(o.clazz.getName());

         }

         @Override

         public String toString() {

             return "Bind{" + "clazz=" + clazz + "@" + clazz.getClassLoader() + ", impl=" + impl + ", priority=" + priority + '}';

         }

     }

 }