hudson.tasks

Class MailAddressResolver

java.lang.Object

hudson.tasks.MailAddressResolver

All Implemented Interfaces:

hudson.ExtensionPoint

public abstract class MailAddressResolver
extends Object
implements hudson.ExtensionPoint

Infers e-mail addresses for the user when none is specified.

This is an extension point of Jenkins. Plugins that contribute a new implementation of this class should put Extension on your implementation class, like this:

 @Extension
 class MyMailAddressResolver extends MailAddressResolver {
   ...
 }
 

Techniques

User identity in Jenkins is global, and not specific to a particular job. As a result, mail address resolution only receives User, which by itself doesn't really have that much information in it.

So the common technique for a mail address resolution is to define your own UserProperty types and add it to User objects where more context is available. For example, an SCM implementation can have a lot more information about a particular user during a check out, so that would be a good place to capture information as UserProperty, which then later used by a MailAddressResolver.

Performance considerations

Mail address resolution is a potentially time consuming process. It can considerably slow down operations relaying on mail address resolution, especially on Jenkins instances having registered several resolvers. Searching through all projects is generally a bad idea. See JENKINS-16437 for more details.

Since:

1.192

Author:

Kohsuke Kawaguchi

Nested Class Summary

Nested classes/interfaces inherited from interface hudson.ExtensionPoint

hudson.ExtensionPoint.LegacyInstancesAreScopedToHudson

Field Summary

Fields

Modifier and Type	Field and Description
static List<MailAddressResolver>	LIST Deprecated. as of 1.286 Use all() for read access and Extension for registration.

Constructor Summary

Constructors

Constructor and Description
MailAddressResolver()

Method Summary

Modifier and Type	Method and Description
static hudson.ExtensionList<MailAddressResolver>	all() Returns all the registered MailAddressResolver descriptors.
abstract String	findMailAddressFor(hudson.model.User u) Infers e-mail address of the given user.
static String	resolve(hudson.model.User u) Try to resolve email address using resolvers.
static String	resolveFast(hudson.model.User u) Try to resolve user email address fast enough to be used from UI

Methods inherited from class java.lang.Object

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

Field Detail

LIST

public static final List<MailAddressResolver> LIST

Deprecated. as of 1.286 Use all() for read access and Extension for registration.

All registered MailAddressResolver implementations.

Constructor Detail

MailAddressResolver

public MailAddressResolver()

Method Detail

findMailAddressFor

public abstract String findMailAddressFor(hudson.model.User u)

Infers e-mail address of the given user.

This method is called when a User without explicitly configured e-mail address is used, as an attempt to infer e-mail address.

The normal strategy is to look at the projects that the user is participating, then use the repository information to infer the e-mail address.

When multiple resolvers are installed, they are consulted in order and the search will be over when an address is inferred by someone.

Since MailAddressResolver is singleton, this method can be invoked concurrently from multiple threads.

Returns:

null if the inference failed.

resolve

public static String resolve(hudson.model.User u)

Try to resolve email address using resolvers. If a user specifies a Mail UserProperty, then it will be used with the highest priority.

Returns:

User address or null if resolution failed

resolveFast

public static String resolveFast(hudson.model.User u)

Try to resolve user email address fast enough to be used from UI

This implementation does not trigger MailAddressResolver extension point.

Parameters:

u - A user, for whom the email should be resolved

Returns:

User address or null if resolution failed

all

public static hudson.ExtensionList<MailAddressResolver> all()

Returns all the registered MailAddressResolver descriptors.