    001    // Copyright 2011 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.assets;
    016
    017    import org.apache.tapestry5.ioc.Resource;
    018    import org.apache.tapestry5.ioc.annotations.UsesMappedConfiguration;
    019    import org.apache.tapestry5.services.Context;
    020
    021    /**
    022     * Used to determine the MIME content type for a resource. The service configuration is the first step,
    023     * followed by {@link Context#getMimeType(String)}, and then (finally) "application/octet-stream"
    024     * as a stop-gap.
    025     * <p>
    026     * The service configuration maps the file extension (e.g., "png") to its corresponding MIME type (e.g., "image/png");
    027     */
    028    @UsesMappedConfiguration(String.class)
    029    public interface ContentTypeAnalyzer
    030    {
    031        /**
    032         * Analyze the resource to determine its content type.
    033         *
    034         * @param resource
    035         *            to analyze
    036         * @return a MIME content type
    037         */
    038        String getContentType(Resource resource);
    039    }