1 /*
2  * Copyright (C) 2010 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package java.net;
18 
19 import java.util.Locale;
20 import libcore.net.MimeUtils;
21 
22 /**
23  * Implements {@link FileNameMap} in terms of {@link libcore.net.MimeUtils}.
24  */
25 class DefaultFileNameMap implements FileNameMap {
getContentTypeFor(String filename)26     public String getContentTypeFor(String filename) {
27         if (filename.endsWith("/")) {
28             // a directory, return html
29             return MimeUtils.guessMimeTypeFromExtension("html");
30         }
31         int lastCharInExtension = filename.lastIndexOf('#');
32         if (lastCharInExtension < 0) {
33             lastCharInExtension = filename.length();
34         }
35         int firstCharInExtension = filename.lastIndexOf('.') + 1;
36         String ext = "";
37         if (firstCharInExtension > filename.lastIndexOf('/')) {
38             ext = filename.substring(firstCharInExtension, lastCharInExtension);
39         }
40         return MimeUtils.guessMimeTypeFromExtension(ext.toLowerCase(Locale.US));
41     }
42 }
43