    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.internal.services.assets;
    016
    017    import java.util.Map;
    018
    019    import org.apache.tapestry5.internal.TapestryInternalUtils;
    020    import org.apache.tapestry5.ioc.Resource;
    021    import org.apache.tapestry5.services.Context;
    022    import org.apache.tapestry5.services.assets.ContentTypeAnalyzer;
    023
    024    public class ContentTypeAnalyzerImpl implements ContentTypeAnalyzer
    025    {
    026        private final Context context;
    027
    028        private final Map<String, String> configuration;
    029
    030        public ContentTypeAnalyzerImpl(Context context, Map<String, String> configuration)
    031        {
    032            this.context = context;
    033            this.configuration = configuration;
    034        }
    035
    036        public String getContentType(Resource resource)
    037        {
    038            String extension = TapestryInternalUtils.toFileSuffix(resource.getFile());
    039
    040            String contentType = configuration.get(extension);
    041
    042            if (contentType != null)
    043                return contentType;
    044
    045            contentType = context.getMimeType(resource.getFile());
    046
    047            if (contentType != null)
    048                return contentType;
    049
    050            return "application/octet-stream";
    051        }
    052
    053    }