com.bentofw.util
Class MimeMapDic

java.lang.Object
  com.bentofw.util.MimeMapDic

public class MimeMapDic
extends java.lang.Object

Resolve the mime-type from the file name.

Author:

Jun Inamori

Method Summary

static java.lang.String	getFileExtension(java.lang.String file) Return the extension for the specified file name, such as png or txt.
java.lang.String	getFileExtension4Mime(java.lang.String mime) Return the file extension for the specified mime-type.
static MimeMapDic	getInstance() Reads "WEB-INF/classes/mime.xml" and stores the mapping between the file extension and mime-type.
java.lang.String	getMimeType(java.lang.String file) Return the mime-type for the specified file name.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

getInstance

public static MimeMapDic getInstance()
                              throws NestedException,
                                     NoPropertyFileException

Reads "WEB-INF/classes/mime.xml" and stores the mapping between the file extension and mime-type.

The XML also defines the default mime-type, which will be returned in case that the corresponding mime-type is missing.

Returns:

MimeMapDic object

Throws:

NestedException

NoPropertyFileException

See Also:

getMimeType(String)

getMimeType

public java.lang.String getMimeType(java.lang.String file)

Return the mime-type for the specified file name.

This method extracts the file extension of the specified file name and queries its corresponding mime-type. In case of failure, the default mime-type will be returned.

If this method cannot extract the file extension, which means there is no '.' found in the file name, this method will return the default mime-type.

Parameters:

file - file name

Returns:

mime-type for the given file name

getFileExtension4Mime

public java.lang.String getFileExtension4Mime(java.lang.String mime)

Return the file extension for the specified mime-type.

This method queries the corresponding file extension for the specified mime-type. In case of failure, the empty string will be returned.

Parameters:

mime - mime-type

Returns:

file extesion for the mime-type

Since:

4.3

getFileExtension

public static java.lang.String getFileExtension(java.lang.String file)

Return the extension for the specified file name, such as png or txt.

This method extracts the file extension from the specified file name.

If this method cannot extract the file extension, which means there is no '.' found in the file name, this method will return the empty String.

Parameters:

file - file name

Returns:

the file extension, such as png or txt.