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ninja.utils.HttpHeaderUtils Maven / Gradle / Ivy
/**
* Copyright (C) 2012-2016 the original author or authors.
*
* 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 ninja.utils;
public class HttpHeaderUtils {
/**
* A http content type should contain a character set like
* "application/json; charset=utf-8".
*
* If you only want to get "application/json" you can use this method.
*
* See also: http://www.w3.org/Protocols/rfc2616/rfc2616-sec3.html#sec3.7.1
*
* @param rawContentType "application/json; charset=utf-8" or "application/json"
* @return only the contentType without charset. Eg "application/json"
*/
public static String getContentTypeFromContentTypeAndCharacterSetting(String rawContentType) {
if (rawContentType.contains(";")) {
return rawContentType.split(";")[0];
} else {
return rawContentType;
}
}
/**
* A http content type should contain a character set like
* "application/json; charset=utf-8".
*
* If you only want to get the character set you can use this method.
*
* See also: http://www.w3.org/Protocols/rfc2616/rfc2616-sec3.html#sec3.7.1
*
* @param rawContentType "application/json; charset=utf-8" or "application/json"
* @return only the character set like utf-8 OR the defaultEncoding when not set
*/
public static String getCharsetOfContentType(String rawContentType, String defaultEncoding) {
if (rawContentType.contains("charset=")) {
String charset = rawContentType.split("charset=") [1];
return charset;
} else {
return defaultEncoding;
}
}
/**
* A http content type should contain a character set like
* "application/json; charset=utf-8".
*
* If you only want to get the character set you can use this method.
*
* See also: http://www.w3.org/Protocols/rfc2616/rfc2616-sec3.html#sec3.7.1
*
* @param rawContentType "application/json; charset=utf-8" or "application/json"
* @return only the character set like utf-8 OR utf-8 when not set
*/
public static String getCharsetOfContentTypeOrUtf8(String rawContentType) {
return getCharsetOfContentType(rawContentType, NinjaConstant.UTF_8);
}
}