/*
* Copyright 2004-2015 the Seasar Foundation and the Others.
*
* 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 org.seasar.framework.util;
import java.io.IOException;
import java.io.InputStream;
import java.net.URLConnection;
import org.seasar.framework.exception.IORuntimeException;
/**
* Mimeタイプ用のユーティリティクラスです。
*
* @author shot
*/
public class MimeTypeUtil {
/**
* インスタンスを構築します。
*/
protected MimeTypeUtil() {
}
/**
* コンテントタイプを予想します。
*
* @param path
* @return コンテントタイプ
*/
public static String guessContentType(final String path) {
AssertionUtil.assertNotNull("path is null.", path);
final InputStream is = ResourceUtil.getResourceAsStream(path);
String mimetype = null;
try {
mimetype = URLConnection.guessContentTypeFromStream(is);
} catch (IOException e) {
throw new IORuntimeException(e);
}
if (mimetype == null) {
mimetype = URLConnection.guessContentTypeFromName(path);
}
return mimetype;
}
}