core.tut.pori.utils

Class MediaUrlValidator

java.lang.Object

core.tut.pori.utils.MediaUrlValidator

public class MediaUrlValidator
extends java.lang.Object

This class can be used to validate whether content given as an URL link contains image content. The validation of the URL is done by downloading the first few bytes of the content and comparing the retrieved bytes to the list of known magic numbers. The supported video formats for this validator are:

• GIF
• JPEG
• PNG

The supported photo formats for this validator are:

• AVI
• Flash Video
• MKV
• MPEG Video
• MOV

Note that the magic number validation is a simplified operation and no end bytes for file types will ever be checked, whether they denote the file type or not.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	MediaUrlValidator.MediaType Media type declaration.

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	MEDIA_TYPE_AUDIO media type name for audio content
static java.lang.String	MEDIA_TYPE_PHOTO media type name for photo/image content
static java.lang.String	MEDIA_TYPE_UNKNOWN media type name for unknown/unspecified content
static java.lang.String	MEDIA_TYPE_VIDEO media type name for video content

Constructor Summary

Constructors

Constructor and Description
MediaUrlValidator()

Method Summary

Modifier and Type	Method and Description
MediaUrlValidator.MediaType	validateUrl(java.lang.String url)

Methods inherited from class java.lang.Object

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

Field Detail

MEDIA_TYPE_AUDIO

public static final java.lang.String MEDIA_TYPE_AUDIO

media type name for audio content

See Also:

Constant Field Values

MEDIA_TYPE_PHOTO

public static final java.lang.String MEDIA_TYPE_PHOTO

media type name for photo/image content

See Also:

Constant Field Values

MEDIA_TYPE_VIDEO

public static final java.lang.String MEDIA_TYPE_VIDEO

media type name for video content

See Also:

Constant Field Values

MEDIA_TYPE_UNKNOWN

public static final java.lang.String MEDIA_TYPE_UNKNOWN

media type name for unknown/unspecified content

See Also:

Constant Field Values

Constructor Detail

MediaUrlValidator

public MediaUrlValidator()

Method Detail

validateUrl

public MediaUrlValidator.MediaType validateUrl(java.lang.String url)

Parameters:

url -

Returns:

media type for the given URL