uk.ac.starlink.topcat
Enum ResourceType

java.lang.Object
  extended by java.lang.Enum<ResourceType>
      extended by uk.ac.starlink.topcat.ResourceType
All Implemented Interfaces:
Serializable, Comparable<ResourceType>

public enum ResourceType
extends Enum<ResourceType>

Defines different kinds of resources that can be at the end of a URL. This is used for the purposes of deciding what actions to invoke on it, for instance in the context of DataLink.

Since:
6 Feb 2018
Author:
Mark Taylor

Enum Constant Summary
DATALINK
          DataLink {links}-response table.
FITS_IMAGE
          FITS file to be interpreted as image data.
IMAGE
          Graphical image, typically not FITS (PNG, JPEG etc).
SPECTRUM
          Some kind of spectrum.
TABLE
          Table.
UNKNOWN
          Unknown resource type.
WEB
          Something that can be displayed in a web browser, for instance HTML.
 
Method Summary
static ResourceType guessResourceType(URL url, String contentType, String standardId)
          Attempts to determine the type of resource characterised by available information.
static ResourceType valueOf(String name)
          Returns the enum constant of this type with the specified name.
static ResourceType[] values()
          Returns an array containing the constants of this enum type, in the order they are declared.
 
Methods inherited from class java.lang.Enum
clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf
 
Methods inherited from class java.lang.Object
getClass, notify, notifyAll, wait, wait, wait
 

Enum Constant Detail

TABLE

public static final ResourceType TABLE
Table.


DATALINK

public static final ResourceType DATALINK
DataLink {links}-response table.


FITS_IMAGE

public static final ResourceType FITS_IMAGE
FITS file to be interpreted as image data.


SPECTRUM

public static final ResourceType SPECTRUM
Some kind of spectrum.


IMAGE

public static final ResourceType IMAGE
Graphical image, typically not FITS (PNG, JPEG etc).


WEB

public static final ResourceType WEB
Something that can be displayed in a web browser, for instance HTML.


UNKNOWN

public static final ResourceType UNKNOWN
Unknown resource type.

Method Detail

values

public static ResourceType[] values()
Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:
for (ResourceType c : ResourceType.values())
    System.out.println(c);

Returns:
an array containing the constants of this enum type, in the order they are declared

valueOf

public static ResourceType valueOf(String name)
Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:
name - the name of the enum constant to be returned.
Returns:
the enum constant with the specified name
Throws:
IllegalArgumentException - if this enum type has no constant with the specified name
NullPointerException - if the argument is null

guessResourceType

public static ResourceType guessResourceType(URL url,
                                             String contentType,
                                             String standardId)
Attempts to determine the type of resource characterised by available information. Works on a best-efforts basis.

Parameters:
url - resource URL
contentType - known or inferred Content-Type string (RFC 2045), or null if not known
standardId - known or inferred IVOA standard ID, or null if not known
Returns:
best guess at the type of resource corresponding to the given information


Copyright © 2003-2018 CCLRC: Council for the Central Laboratory of the Research Councils. All Rights Reserved.