    001    // Copyright 2006, 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.ioc.annotations.UsesOrderedConfiguration;
    018
    019    import javax.servlet.http.HttpServletRequest;
    020    import javax.servlet.http.HttpServletResponse;
    021    import java.io.IOException;
    022
    023    /**
    024     * The first step in handing an incoming request to the {@linkplain org.apache.tapestry5.TapestryFilter servlet filter},
    025     * this constructed as a {@linkplain org.apache.tapestry5.ioc.services.PipelineBuilder pipeline}.  The main
    026     * implementation hands off to the {@link org.apache.tapestry5.services.RequestHandler} service.
    027     */
    028    @UsesOrderedConfiguration(HttpServletRequestFilter.class)
    029    public interface HttpServletRequestHandler
    030    {
    031        /**
    032         * Returns true if the request was handled, false otherwise.
    033         */
    034        boolean service(HttpServletRequest request, HttpServletResponse response) throws IOException;
    035    }