001    // Copyright 2008 The Apache Software Foundation
002    //
003    // Licensed under the Apache License, Version 2.0 (the "License");
004    // you may not use this file except in compliance with the License.
005    // You may obtain a copy of the License at
006    //
007    //     http://www.apache.org/licenses/LICENSE-2.0
008    //
009    // Unless required by applicable law or agreed to in writing, software
010    // distributed under the License is distributed on an "AS IS" BASIS,
011    // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
012    // See the License for the specific language governing permissions and
013    // limitations under the License.
014    
015    package org.apache.tapestry5.services;
016    
017    import org.apache.tapestry5.ContentType;
018    
019    import java.io.IOException;
020    
021    /**
022     * Public facade around internal services related to rendering a markup response.
023     */
024    public interface ResponseRenderer
025    {
026        /**
027         * Renders a markup response by rendering the named page.
028         *
029         * @param pageName logical name of page to provide the markup
030         */
031        void renderPageMarkupResponse(String pageName) throws IOException;
032    
033    
034        /**
035         * Finds the content type for the page containing the indicated component.
036         *
037         * @param component a component within a page
038         * @return the content type
039         * @throws IllegalArgumentException if the component parameter is not a component
040         */
041        ContentType findContentType(Object component);
042    }