java.net.DefaultFileNameMap Maven / Gradle / Ivy
/*
* Copyright (C) 2010 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package java.net;
import java.util.Locale;
import libcore.net.MimeUtils;
/**
* Implements {@link FileNameMap} in terms of {@link libcore.net.MimeUtils}.
*/
class DefaultFileNameMap implements FileNameMap {
public String getContentTypeFor(String filename) {
if (filename.endsWith("/")) {
// a directory, return html
return MimeUtils.guessMimeTypeFromExtension("html");
}
int lastCharInExtension = filename.lastIndexOf('#');
if (lastCharInExtension < 0) {
lastCharInExtension = filename.length();
}
int firstCharInExtension = filename.lastIndexOf('.') + 1;
String ext = "";
if (firstCharInExtension > filename.lastIndexOf('/')) {
ext = filename.substring(firstCharInExtension, lastCharInExtension);
}
return MimeUtils.guessMimeTypeFromExtension(ext.toLowerCase(Locale.US));
}
}