/**

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  * 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

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  * 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

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  * "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.

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  * 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

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

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 package org.netbeans.html.json.impl;

 import java.util.logging.Level;

 import java.util.logging.Logger;

 import net.java.html.BrwsrCtx;

 import org.netbeans.html.json.spi.FunctionBinding;

 import org.netbeans.html.json.spi.PropertyBinding;

 import org.netbeans.html.json.spi.Proto;

 import org.netbeans.html.json.spi.Technology;

 /**

  *

  * @author Jaroslav Tulach

  */

 public final class Bindings<Data> {

     private static final Logger LOG = Logger.getLogger(Bindings.class.getName()); 

     private Data data;

     private final Technology<Data> bp;

     private Bindings(Technology<Data> bp) {

         this.bp = bp;

     }

     public <M> PropertyBinding registerProperty(String propName, int index, M model, Proto.Type<M> access, byte propertyType) {

         return PropertyBindingAccessor.create(access, this, propName, index, model, propertyType);

     }

     public static Bindings<?> apply(BrwsrCtx c) {

         Technology<?> bp = JSON.findTechnology(c);

         return apply(bp);

     }

     private static <Data> Bindings<Data> apply(Technology<Data> bp) {

         return new Bindings<Data>(bp);

     }

     public final void finish(Object model, Object copyFrom, PropertyBinding[] propArr, FunctionBinding[] funcArr) {

         assert data == null;

         if (bp instanceof Technology.BatchCopy) {

             Technology.BatchCopy<Data> bi = (Technology.BatchCopy<Data>)bp;

             data = bi.wrapModel(model, copyFrom, propArr, funcArr);

         } else if (bp instanceof Technology.BatchInit) {

             Technology.BatchInit<Data> bi = (Technology.BatchInit<Data>)bp;

             data = bi.wrapModel(model, propArr, funcArr);

         } else {

             data = bp.wrapModel(model);

             for (PropertyBinding b : propArr) {

                 bp.bind(b, model, data);

             }

             for (FunctionBinding b : funcArr) {

                 bp.expose(b, model, data);

             }

         }

     }

     public Data koData() {

         return data;

     }

     public void valueHasMutated(String firstName, Object oldValue, Object newValue) {

         if (bp instanceof Technology.ValueMutated) {

             Technology.ValueMutated<Data> vm = (Technology.ValueMutated<Data>)bp;

             Object ov = JSON.find(oldValue, this);

             Object nv = JSON.find(newValue, this);

             vm.valueHasMutated(data, firstName, ov, nv);

         } else {

             bp.valueHasMutated(data, firstName);

         }

     }

     public void applyBindings(String id) {

         if (bp instanceof Technology.ApplyId) {

             Technology.ApplyId<Data> ai = (Technology.ApplyId<Data>) bp;

             ai.applyBindings(id, data);

             return;

         }

         if (id != null) {

             LOG.log(Level.WARNING, 

                 "Technology {0} does not implement ApplyId extension. Can't apply to {1}. Applying globally.", 

                 new Object[]{bp, id}

             );

         }

         bp.applyBindings(data);

     }

     Object wrapArray(Object[] arr) {

         return bp.wrapArray(arr);

     }

 }