public class ConfigurableMimeFileTypeMap extends FileTypeMap implements InitializingBean
FileTypeMap
implementation that will read
MIME type to file extension mappings from a standard JavaMail MIME type
mapping file, using a standard MimetypesFileTypeMap
underneath.
The mapping file should be in the following format, as specified by the Java Activation Framework:
# map text/html to .htm and .html files text/html html htm HTML HTMLines starting with
#
are treated as comments and are ignored. All
other lines are treated as mappings. Each mapping line should contain the MIME
type as the first entry and then each file extension to map to that MIME type
as subsequent entries. Each entry is separated by spaces or tabs.
By default, the mappings in the mime.types
file located in the
same package as this class are used, which cover many common file extensions
(in contrast to the out-of-the-box mappings in activation.jar
).
This can be overridden using the mappingLocation
property.
Additional mappings can be added via the mappings
bean property,
as lines that follow the mime.types
file format.
setMappingLocation(org.springframework.core.io.Resource)
,
setMappings(java.lang.String...)
,
MimetypesFileTypeMap
Constructor and Description |
---|
ConfigurableMimeFileTypeMap() |
Modifier and Type | Method and Description |
---|---|
void |
afterPropertiesSet()
Creates the final merged mapping set.
|
protected FileTypeMap |
createFileTypeMap(Resource mappingLocation,
String[] mappings)
Compile a
FileTypeMap from the mappings in the given mapping file
and the given mapping entries. |
String |
getContentType(File file)
Delegates to the underlying FileTypeMap.
|
String |
getContentType(String fileName)
Delegates to the underlying FileTypeMap.
|
protected FileTypeMap |
getFileTypeMap()
Return the delegate FileTypeMap, compiled from the mappings in the mapping file
and the entries in the
mappings property. |
void |
setMappingLocation(Resource mappingLocation)
Specify the
Resource from which mappings are loaded. |
void |
setMappings(String... mappings)
Specify additional MIME type mappings as lines that follow the
mime.types file format, as specified by the
Java Activation Framework. |
getDefaultFileTypeMap, setDefaultFileTypeMap
public void setMappingLocation(Resource mappingLocation)
Resource
from which mappings are loaded.
Needs to follow the mime.types
file format, as specified
by the Java Activation Framework, containing lines such as:
text/html html htm HTML HTM
public void setMappings(String... mappings)
mime.types
file format, as specified by the
Java Activation Framework. For example:text/html html htm HTML HTM
public void afterPropertiesSet()
afterPropertiesSet
in interface InitializingBean
protected final FileTypeMap getFileTypeMap()
mappings
property.protected FileTypeMap createFileTypeMap(@Nullable Resource mappingLocation, @Nullable String[] mappings) throws IOException
FileTypeMap
from the mappings in the given mapping file
and the given mapping entries.
The default implementation creates an Activation Framework MimetypesFileTypeMap
,
passing in an InputStream from the mapping resource (if any) and registering
the mapping lines programmatically.
mappingLocation
- a mime.types
mapping resource (can be null
)mappings
- an array of MIME type mapping lines (can be null
)IOException
- if resource access failedMimetypesFileTypeMap(java.io.InputStream)
,
MimetypesFileTypeMap.addMimeTypes(String)
public String getContentType(File file)
getContentType
in class FileTypeMap
getFileTypeMap()
public String getContentType(String fileName)
getContentType
in class FileTypeMap
getFileTypeMap()