Package org.springframework.boot.buildpack.platform.docker.type

Class ImageReference

java.lang.Object

org.springframework.boot.buildpack.platform.docker.type.ImageReference

public final class ImageReference
extends Object

A reference to a Docker image of the form "imagename[:tag|@digest]".

Since:

2.3.0

See Also:

• ImageName

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object obj)
static ImageReference	forJarFile(File jarFile)	Create a new ImageReference instance deduced from a source JAR file that follows common Java naming conventions.
String	getDigest()	Return the digest from the reference or null.
String	getDomain()	Return the domain for this image name.
String	getName()	Return the name of this image.
String	getTag()	Return the tag from the reference or null.
int	hashCode()
ImageReference	inTaggedForm()	Return an ImageReference in the form "imagename:tag".
ImageReference	inTaggedOrDigestForm()	Return an ImageReference containing either a tag or a digest.
ImageReference	inTaglessForm()	Return an ImageReference without the tag.
static ImageReference	of(String value)	Create a new ImageReference from the given value.
static ImageReference	of(ImageName name)	Create a new ImageReference from the given ImageName.
static ImageReference	of(ImageName name, String tag)	Create a new ImageReference from the given ImageName and tag.
static ImageReference	of(ImageName name, String tag, String digest)	Create a new ImageReference from the given ImageName, tag and digest.
static ImageReference	random(String prefix)	Generate an image name with a random suffix.
static ImageReference	random(String prefix, int randomLength)	Generate an image name with a random suffix.
String	toLegacyString()
String	toString()
ImageReference	withDigest(String digest)	Create a new ImageReference with an updated digest.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Method Details

getDomain

public String getDomain()

Return the domain for this image name.

Returns:

the domain

See Also:

• ImageName.getDomain()

getName

public String getName()

Return the name of this image.

Returns:

the image name

See Also:

• ImageName.getName()

getTag

public String getTag()

Return the tag from the reference or null.

Returns:

the referenced tag

getDigest

public String getDigest()

Return the digest from the reference or null.

Returns:

the referenced digest

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object

toLegacyString

public String toLegacyString()

withDigest

public ImageReference withDigest(String digest)

Create a new ImageReference with an updated digest.

Parameters:

digest - the new digest

Returns:

an updated image reference

inTaggedForm

public ImageReference inTaggedForm()

Return an ImageReference in the form "imagename:tag". If the tag has not been defined then latest is used.

Returns:

the image reference in tagged form

Throws:

IllegalStateException - if the image reference contains a digest

inTaglessForm

public ImageReference inTaglessForm()

Return an ImageReference without the tag.

Returns:

the image reference in tagless form

Since:

2.7.12

inTaggedOrDigestForm

public ImageReference inTaggedOrDigestForm()

Return an ImageReference containing either a tag or a digest. If neither the digest nor the tag has been defined then tag latest is used.

Returns:

the image reference in tagged or digest form

forJarFile

public static ImageReference forJarFile(File jarFile)

Create a new ImageReference instance deduced from a source JAR file that follows common Java naming conventions.

Parameters:

jarFile - the source jar file

Returns:

an ImageName for the jar file.

random

public static ImageReference random(String prefix)

Generate an image name with a random suffix.

Parameters:

prefix - the name prefix

Returns:

a random image reference

random

public static ImageReference random(String prefix,
 int randomLength)

Generate an image name with a random suffix.

Parameters:

prefix - the name prefix

randomLength - the number of chars in the random part of the name

Returns:

a random image reference

of

public static ImageReference of(String value)

Create a new ImageReference from the given value. The following value forms can be used:

• name (maps to docker.io/library/name)
• domain/name
• domain:port/name
• domain:port/name:tag
• domain:port/name@digest

Parameters:

value - the value to parse

Returns:

an ImageName instance

of

public static ImageReference of(ImageName name)

Create a new ImageReference from the given ImageName.

Parameters:

name - the image name

Returns:

a new image reference

of

public static ImageReference of(ImageName name,
 String tag)

Create a new ImageReference from the given ImageName and tag.

Parameters:

name - the image name

tag - the referenced tag

Returns:

a new image reference

of

public static ImageReference of(ImageName name,
 String tag,
 String digest)

Create a new ImageReference from the given ImageName, tag and digest.

Parameters:

name - the image name

tag - the referenced tag

digest - the referenced digest

Returns:

a new image reference