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 }