Declaring MIME types to use for various requests and provide utility manipulation methods
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.
*/
/**
*
* <p>Utility class for declaring MIME types to use for various requests and provide
* utility manipulation methods.</p>
* <p>Added Content-Encoding capability, with defaults
*
* @author <a href="mailto:raphael@apache.org">Rapha\u00ebl Luta</a>
* @author <a href="mailto:sgala@apache.org">Santiago Gala</a>
* @version $Id: MimeType.java 516448 2007-03-09 16:25:47Z ate $
*/
public class MimeType
{
public static final MimeType HTML = new MimeType("text/html", "UTF-8"); //FIXME: test
public static final MimeType XHTML = new MimeType("text/xhtml");
public static final MimeType WML = new MimeType("text/vnd.wap.wml");
public static final MimeType XML = new MimeType("text/xml");
public static final MimeType VXML = new MimeType("text/vxml");
/**
* Standard ContentType String, with no encoding appended.
*/
private String mimeType = "";
/**
* null value means default encoding.
* Otherwise, charset to be used.
*/
private String charSet = null;
public MimeType(String mimeType)
{
if (mimeType == null)
{
throw new NullPointerException();
}
this.mimeType = mimeType;
}
/**
*
*/
public MimeType(String mimeType, String charSet)
{
if (mimeType == null)
{
throw new NullPointerException();
}
this.mimeType = mimeType;
this.charSet = charSet;
}
/** Extracts from this MimeType a user-friendly identifying code
* ie "html" for "text/html" or "wml" for "text/vnd.wap.wml"
*
* @return the simplified type
*/
public String getCode()
{
String type = this.mimeType;
// get everything after "/"
type = type.substring(type.indexOf("/") + 1);
// remove any dot in the name
int idx = type.lastIndexOf(".");
if (idx >= 0)
{
type = type.substring(idx + 1);
}
//remove anything before a "-"
idx = type.lastIndexOf("-");
if (idx >= 0)
{
type = type.substring(idx + 1);
}
return type.toLowerCase();
}
/**
* Return the media type associated
*/
public String getContentType()
{
return this.mimeType;
}
/**
* Return the character encoding associated, if any
*/
public String getCharSet()
{
return this.charSet;
}
/**
* Convert this MimeType to its external String representation
*/
public String toString()
{
if (null == this.charSet)
{
return this.mimeType;
}
return this.mimeType + "; charset=" + this.charSet;
}
/**
* Compare one MimeType to another
*/
public boolean equals(Object obj)
{
if (this == obj)
{
return true;
}
if (obj instanceof MimeType)
{
MimeType comp = (MimeType) obj;
return this.toString().equals(comp.toString());
}
else
{
return false;
}
}
}