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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 org.apache.cxf.jaxrs.impl;

import java.util.HashMap;
import java.util.Map;

import javax.ws.rs.core.Application;
import javax.ws.rs.core.CacheControl;
import javax.ws.rs.core.Cookie;
import javax.ws.rs.core.EntityTag;
import javax.ws.rs.core.Link;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.NewCookie;
import javax.ws.rs.core.Response.ResponseBuilder;
import javax.ws.rs.core.UriBuilder;
import javax.ws.rs.core.Variant.VariantListBuilder;
import javax.ws.rs.ext.RuntimeDelegate;

import org.apache.cxf.endpoint.Server;
import org.apache.cxf.jaxrs.JAXRSServerFactoryBean;
import org.apache.cxf.jaxrs.utils.ResourceUtils;



public class RuntimeDelegateImpl extends RuntimeDelegate {
    protected Map, HeaderDelegate> headerProviders 
        = new HashMap, HeaderDelegate>();    

    public RuntimeDelegateImpl() {
        headerProviders.put(MediaType.class, new MediaTypeHeaderProvider());
        headerProviders.put(CacheControl.class, new CacheControlHeaderProvider());
        headerProviders.put(EntityTag.class, new EntityTagHeaderProvider());
        headerProviders.put(Cookie.class, new CookieHeaderProvider());
        headerProviders.put(NewCookie.class, new NewCookieHeaderProvider());
        headerProviders.put(Link.class, new LinkHeaderProvider());
    }
    
    
    
    public  T createInstance(Class type) {
        if (type.isAssignableFrom(ResponseBuilder.class)) {
            return type.cast(new ResponseBuilderImpl());
        } 
        if (type.isAssignableFrom(UriBuilder.class)) {
            return type.cast(new UriBuilderImpl());
        }
        if (type.isAssignableFrom(VariantListBuilder.class)) {
            return type.cast(new VariantListBuilderImpl());
        }
        return null;
    }
   
    
    @SuppressWarnings("unchecked")
    @Override
    public  HeaderDelegate createHeaderDelegate(Class type) {
        return (HeaderDelegate)headerProviders.get(type);
    }



    @Override
    public ResponseBuilder createResponseBuilder() {
        return new ResponseBuilderImpl();
    }



    @Override
    public UriBuilder createUriBuilder() {
        return new UriBuilderImpl();
    }



    @Override
    public VariantListBuilder createVariantListBuilder() {
        return new VariantListBuilderImpl(); 
    }



    @Override
    public  T createEndpoint(Application app, Class endpointType) 
        throws IllegalArgumentException, UnsupportedOperationException {
        if (app == null || (!Server.class.isAssignableFrom(endpointType)
            && !JAXRSServerFactoryBean.class.isAssignableFrom(endpointType))) {
            throw new IllegalArgumentException();
        }
        JAXRSServerFactoryBean bean = ResourceUtils.createApplication(app, false);
        if (JAXRSServerFactoryBean.class.isAssignableFrom(endpointType)) {
            return endpointType.cast(bean);
        }
        bean.setStart(false);
        Server server = bean.create();
        return endpointType.cast(server);
    }
    

}