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The public API classes of the Apache MyFaces CORE JSF-2.2 project
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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package jakarta.faces.render;

import java.io.OutputStream;
import java.io.Writer;
import java.util.Collections;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;

import jakarta.faces.context.ResponseStream;
import jakarta.faces.context.ResponseWriter;
import org.apache.myfaces.core.api.shared.lang.Assert;

/**
 * see Javadoc of Faces Specification
 */
public abstract class RenderKit
{
    private HashMap clientBehaviorRenderers;
    
    public RenderKit()
    {
        this.clientBehaviorRenderers = new HashMap<>();
    }
    
    public void addClientBehaviorRenderer(String type, ClientBehaviorRenderer renderer)
    {
        Assert.notNull(type, "type");
        Assert.notNull(renderer, "renderer");

        this.clientBehaviorRenderers.put(type, renderer);
    }

    public abstract void addRenderer(String family, String rendererType, Renderer renderer);

    public abstract ResponseStream createResponseStream(OutputStream out);

    public abstract ResponseWriter createResponseWriter(Writer writer, String contentTypeList,
                                                        String characterEncoding);
    
    public ClientBehaviorRenderer getClientBehaviorRenderer(String type)
    {
        Assert.notNull(type, "type");
        
        return this.clientBehaviorRenderers.get(type);
    }
    
    public Iterator getClientBehaviorRendererTypes()
    {
        return this.clientBehaviorRenderers.keySet().iterator();
    }

    /**
     * 
     * Return an Iterator over the component-family entries supported by this RenderKit
     * instance.
     * 
     * 
     * 
     * The default implementation of this method returns an empty Iterator
     * 
     * 
     * @return an iterator over the component families supported by this RenderKit.
     * 
     * @since 2.0
     */
    public Iterator getComponentFamilies()
    {
        List emptyList = Collections.emptyList();

        return emptyList.iterator();
    }

    public abstract Renderer getRenderer(String family, String rendererType);

    /**
     * 
     * Return an Iterator over the renderer-type entries for the given component-family.
     * 
     * 
     * 
     * If the specified componentFamily is not known to this RenderKit implementation, return
     * an empty Iterator
     * 
     * 
     * 
     * The default implementation of this method returns an empty Iterator
     * 
     * 
     * @param componentFamily
     *            one of the members of the Iterator returned by {@link #getComponentFamilies()}
     * 
     * @return an iterator over the renderer-type entries for the given component-family.
     * 
     * @since 2.0
     */
    public Iterator getRendererTypes(String componentFamily)
    {
        List emptyList = Collections.emptyList();

        return emptyList.iterator();
    }

    public abstract ResponseStateManager getResponseStateManager();
}