org.springframework.cloud.dataflow.registry.support

Class DockerImage

java.lang.Object

org.springframework.cloud.dataflow.registry.support.DockerImage

public class DockerImage
extends Object

Docker image name parsing utility Code from https://github.com/vmware/admiral

Field Summary

Fields

Modifier and Type	Field and Description
static String	DEFAULT_NAMESPACE
static String	DEFAULT_TAG
static String	SECTION_SEPARATOR
static String	TAG_SEPARATOR

Constructor Summary

Constructors

Constructor and Description
DockerImage()

Method Summary

Modifier and Type	Method and Description
static DockerImage	fromImageName(String imageName) parse a full image name (myhost:300/namespace/repo:tag) into its components
static DockerImage	fromParts(String hostPart, String namespacePart, String repoAndTagPart)
static DockerImage	fromParts(String hostPart, String namespacePart, String repo, String tag)
String	getHost()
String	getNamespace()
String	getNamespaceAndRepo()
String	getRepository()
String	getTag()
boolean	isDockerHubImage()
static boolean	isValidNamespace(String namespaceCandidate) When a image name part can be ambiguously either host or namespace, check which one it is based on a regex of valid characters for the namespace part
String	toString() Convert to a canonical string representation.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

SECTION_SEPARATOR

public static final String SECTION_SEPARATOR

See Also:

Constant Field Values

TAG_SEPARATOR

public static final String TAG_SEPARATOR

See Also:

Constant Field Values

DEFAULT_NAMESPACE

public static final String DEFAULT_NAMESPACE

See Also:

Constant Field Values

DEFAULT_TAG

public static final String DEFAULT_TAG

See Also:

Constant Field Values

Constructor Detail

DockerImage

public DockerImage()

Method Detail

fromImageName

public static DockerImage fromImageName(String imageName)

parse a full image name (myhost:300/namespace/repo:tag) into its components

Parameters:

imageName - the image name

Returns:

the corresponding DockerImage instance

fromParts

public static DockerImage fromParts(String hostPart,
                                    String namespacePart,
                                    String repoAndTagPart)

fromParts

public static DockerImage fromParts(String hostPart,
                                    String namespacePart,
                                    String repo,
                                    String tag)

isValidNamespace

public static boolean isValidNamespace(String namespaceCandidate)

When a image name part can be ambiguously either host or namespace, check which one it is based on a regex of valid characters for the namespace part

Parameters:

namespaceCandidate - candidate string for host or namespace

Returns:

true if namespace, false otherwise

getHost

public String getHost()

Returns:

the host

getNamespace

public String getNamespace()

Returns:

the namespace

getRepository

public String getRepository()

Returns:

the repository

getNamespaceAndRepo

public String getNamespaceAndRepo()

getTag

public String getTag()

Returns:

the tag

isDockerHubImage

public boolean isDockerHubImage()

toString

public String toString()

Convert to a canonical string representation. E.g.

• from registry.hub.docker.com/library/alpine to alpine
• from registry.hub.docker.com/mongons/mongo to mongons/mongo
• from registry.local.corp/proj/image to registry.local.corp/proj/image

Overrides:

toString in class Object

Returns:

canonical string representation