Class Mimetypes
- java.lang.Object
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- org.jets3t.service.utils.Mimetypes
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public class Mimetypes extends Object
Utility class that maintains a listing of known Mimetypes, and determines the mimetype of files based on file extensions.This class is obtained with the {#link
getInstance()
method that recognised loads mime types from the filemime.types
if this file is available at the root of the classpath. The mime.types file format, and most of the content, is taken from the Apache HTTP server's mime.types file.The format for mime type setting documents is:
mimetype
. Any blank lines in the file are ignored, as are lines starting with+ extension ( + extension)* #
which are considered comments. Lines that have a mimetype but no associated extensions are also ignored.For more information about Mimetype settings please see: JetS3t Configuration
- Author:
- James Murty
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Field Summary
Fields Modifier and Type Field Description static String
MIMETYPE_BINARY_OCTET_STREAM
A binary mimetype: binary/octet-streamstatic String
MIMETYPE_GZIP
The default gzip mimetype: application/x-gzipstatic String
MIMETYPE_HTML
The default HTML mimetype: text/htmlstatic String
MIMETYPE_JETS3T_DIRECTORY
Deprecated.0.8.0static String
MIMETYPE_OCTET_STREAM
The default binary mimetype: application/octet-streamstatic String
MIMETYPE_XML
The default XML mimetype: application/xml
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description static Mimetypes
getInstance()
Loads mime type settings from the file 'mime.types' in the classpath, if it's available.String
getMimetype(File file)
Determines the mimetype of a file by looking up the file's extension in an internal listing to find the corresponding mime type.String
getMimetype(String fileName)
Determines the mimetype of a file by looking up the file's extension in an internal listing to find the corresponding mime type.void
loadAndReplaceMimetypes(InputStream is)
Reads and stores the mime type setting corresponding to a file extension, by reading text from an InputStream.
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Field Detail
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MIMETYPE_XML
public static final String MIMETYPE_XML
The default XML mimetype: application/xml- See Also:
- Constant Field Values
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MIMETYPE_HTML
public static final String MIMETYPE_HTML
The default HTML mimetype: text/html- See Also:
- Constant Field Values
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MIMETYPE_OCTET_STREAM
public static final String MIMETYPE_OCTET_STREAM
The default binary mimetype: application/octet-stream- See Also:
- Constant Field Values
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MIMETYPE_BINARY_OCTET_STREAM
public static final String MIMETYPE_BINARY_OCTET_STREAM
A binary mimetype: binary/octet-stream- See Also:
- Constant Field Values
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MIMETYPE_GZIP
public static final String MIMETYPE_GZIP
The default gzip mimetype: application/x-gzip- See Also:
- Constant Field Values
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MIMETYPE_JETS3T_DIRECTORY
@Deprecated public static final String MIMETYPE_JETS3T_DIRECTORY
Deprecated.0.8.0A JetS3t-specific mimetype used to indicate that an S3 object actually represents a directory on the local file system.- See Also:
- Constant Field Values
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Method Detail
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getInstance
public static Mimetypes getInstance()
Loads mime type settings from the file 'mime.types' in the classpath, if it's available.
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loadAndReplaceMimetypes
public void loadAndReplaceMimetypes(InputStream is) throws IOException
Reads and stores the mime type setting corresponding to a file extension, by reading text from an InputStream. If a mime type setting already exists when this method is run, the mime type value is replaced with the newer one.- Parameters:
is
-- Throws:
IOException
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getMimetype
public String getMimetype(String fileName)
Determines the mimetype of a file by looking up the file's extension in an internal listing to find the corresponding mime type. If the file has no extension, or the extension is not available in the listing contained in this class, the default mimetypeapplication/octet-stream
is returned.A file extension is one or more characters that occur after the last period (.) in the file's name. If a file has no extension, Guesses the mimetype of file data based on the file's extension.
- Parameters:
fileName
- the name of the file whose extension may match a known mimetype.- Returns:
- the file's mimetype based on its extension, or a default value of
application/octet-stream
if a mime type value cannot be found.
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getMimetype
public String getMimetype(File file)
Determines the mimetype of a file by looking up the file's extension in an internal listing to find the corresponding mime type. If the file has no extension, or the extension is not available in the listing contained in this class, the default mimetypeapplication/octet-stream
is returned.A file extension is one or more characters that occur after the last period (.) in the file's name. If a file has no extension, Guesses the mimetype of file data based on the file's extension.
- Parameters:
file
- the file whose extension may match a known mimetype.- Returns:
- the file's mimetype based on its extension, or a default value of
application/octet-stream
if a mime type value cannot be found.
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