com.objectplanet.survey.plugin.interfaces
Interface IFileTypeDetector

public interface IFileTypeDetector

Interface for file type detection

Author:

Irina Brun

Method Summary

java.lang.String	getContentType(java.io.InputStream fileIn) Get content type for the input stream.
boolean	isCSS(java.lang.String contentType) Returns true if file with the passed content type is a css file
boolean	isHtml(java.lang.String contentType) Returns true if file with the passed content type is a html file
boolean	isImage(java.lang.String contentType) Returns true if file with the passed content type is a image file
boolean	isZip(java.lang.String contentType) Returns true if file with the passed content type is a zip file

Method Detail

getContentType

java.lang.String getContentType(java.io.InputStream fileIn)
                                throws java.io.IOException

Get content type for the input stream. Return Mime content type if possible to determine. Return null if unable to determine the content type.

If this method returns null the file type is considered unsupported. In that case:

• If property "objectplanet.files.trustSupportedTypesOnly" in opinio.properties is set to true, the file upload will be denied.
• If property "objectplanet.files.trustSupportedTypesOnly" in opinio.properties is set to false, the content type will be determined by the file name using MimetypesFileTypeMap.

Parameters:

fileIn - file to upload

Returns:

mime content type for the input stream or null

Throws:

java.io.IOException

isCSS

boolean isCSS(java.lang.String contentType)

Returns true if file with the passed content type is a css file

Parameters:

contentType - Content type returned by getContentType(fileIn)

isImage

boolean isImage(java.lang.String contentType)

Returns true if file with the passed content type is a image file

Parameters:

contentType - Content type returned by getContentType(fileIn)

isHtml

boolean isHtml(java.lang.String contentType)

Returns true if file with the passed content type is a html file

Parameters:

contentType - Content type returned by getContentType(fileIn)

isZip

boolean isZip(java.lang.String contentType)

Returns true if file with the passed content type is a zip file

Parameters:

contentType - Content type returned by getContentType(fileIn)