org.htmlunit.corejs.javascript.commonjs.module.provider.ParsedContentType Maven / Gradle / Ivy
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
package org.htmlunit.corejs.javascript.commonjs.module.provider;
import java.io.Serializable;
import java.util.StringTokenizer;
/**
* Breaks a "contentType; charset=encoding" MIME type into content type and encoding parts.
*
* @author Attila Szegedi
* @version $Id: ParsedContentType.java,v 1.3 2011/04/07 20:26:12 hannes%helma.at Exp $
*/
public final class ParsedContentType implements Serializable {
private static final long serialVersionUID = 1L;
private final String contentType;
private final String encoding;
/**
* Creates a new parsed content type.
*
* @param mimeType the full MIME type; typically the value of the "Content-Type" header of some
* MIME-compliant message. Can be null.
*/
public ParsedContentType(String mimeType) {
String contentType = null;
String encoding = null;
if (mimeType != null) {
StringTokenizer tok = new StringTokenizer(mimeType, ";");
if (tok.hasMoreTokens()) {
contentType = tok.nextToken().trim();
while (tok.hasMoreTokens()) {
String param = tok.nextToken().trim();
if (param.startsWith("charset=")) {
encoding = param.substring(8).trim();
int l = encoding.length();
if (l > 0) {
if (encoding.charAt(0) == '"') {
encoding = encoding.substring(1);
}
if (encoding.charAt(l - 1) == '"') {
encoding = encoding.substring(0, l - 1);
}
}
break;
}
}
}
}
this.contentType = contentType;
this.encoding = encoding;
}
/**
* Returns the content type (without charset declaration) of the MIME type.
*
* @return the content type (without charset declaration) of the MIME type. Can be null if the
* MIME type was null.
*/
public String getContentType() {
return contentType;
}
/**
* Returns the character encoding of the MIME type.
*
* @return the character encoding of the MIME type. Can be null when it is not specified.
*/
public String getEncoding() {
return encoding;
}
}