/**

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

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

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

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

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  *

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

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 package org.netbeans.html.context.impl;

 import java.util.ArrayList;

 import java.util.Collections;

 import java.util.List;

 import net.java.html.BrwsrCtx;

 import org.apidesign.html.context.spi.Contexts;

 /** 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);

         final List<Bind<?>> arr = Collections.unmodifiableList(techs);

         CtxImpl impl = new CtxImpl(arr);

         BrwsrCtx ctx = CtxAccssr.getDefault().newContext(impl);

         return ctx;

     }

     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 + '}';

         }

     }

 }