001// Licensed under the Apache License, Version 2.0 (the "License");
002// you may not use this file except in compliance with the License.
003// You may obtain a copy of the License at
004//
005// http://www.apache.org/licenses/LICENSE-2.0
006//
007// Unless required by applicable law or agreed to in writing, software
008// distributed under the License is distributed on an "AS IS" BASIS,
009// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
010// See the License for the specific language governing permissions and
011// limitations under the License.
012
013package org.apache.tapestry5.services.assets;
014
015import java.io.IOException;
016
017import org.apache.tapestry5.http.services.Response;
018
019/**
020 * Used to customize the response prior to streaming content to the client; typically this is used to
021 * set special headers.
022 *
023 * @see org.apache.tapestry5.services.assets.StreamableResource#addResponseCustomizer(ResponseCustomizer)
024 * @since 5.4
025 */
026public interface ResponseCustomizer
027{
028    /**
029     * Invoked to customize the response; these are invoked in the order they are added to the
030     * StreamableResource.
031     */
032    void customizeResponse(StreamableResource resource, Response response) throws IOException;
033}