org.apache.sshd.client.auth.password

Interface PasswordIdentityProvider

All Known Subinterfaces:

AuthenticationIdentitiesProvider

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface PasswordIdentityProvider

Author:

Apache MINA SSHD Project

Field Summary

Fields

Modifier and Type	Field and Description
static PasswordIdentityProvider	EMPTY_PASSWORDS_PROVIDER An "empty" implementation of PasswordIdentityProvider that returns an empty group of passwords

Method Summary

Modifier and Type	Method and Description
static Iterable<String>	iterableOf(SessionContext session, Collection<? extends PasswordIdentityProvider> providers) Wraps a group of PasswordIdentityProvider into an Iterable of their combined passwords
static Iterator<String>	iteratorOf(SessionContext session, PasswordIdentityProvider provider) Resolves a non-null iterator of the available passwords
static Iterator<String>	iteratorOf(SessionContext session, PasswordIdentityProvider identities, PasswordIdentityProvider passwords) Creates a "unified" Iterator of passwords out of 2 possible PasswordIdentityProvider
Iterable<String>	loadPasswords(SessionContext session)
static PasswordIdentityProvider	multiProvider(SessionContext session, Collection<? extends PasswordIdentityProvider> providers) Wraps a group of PasswordIdentityProvider into a single one
static PasswordIdentityProvider	multiProvider(SessionContext session, PasswordIdentityProvider... providers) Wraps a group of PasswordIdentityProvider into a single one
static PasswordIdentityProvider	resolvePasswordIdentityProvider(SessionContext session, PasswordIdentityProvider identities, PasswordIdentityProvider passwords) Creates a "unified" PasswordIdentityProvider out of 2 possible ones as follows:
static PasswordIdentityProvider	wrapPasswords(Iterable<String> passwords) Wraps a group of passwords into a PasswordIdentityProvider
static PasswordIdentityProvider	wrapPasswords(String... passwords) Wraps a group of passwords into a PasswordIdentityProvider

Field Detail

EMPTY_PASSWORDS_PROVIDER

static final PasswordIdentityProvider EMPTY_PASSWORDS_PROVIDER

An "empty" implementation of PasswordIdentityProvider that returns an empty group of passwords

Method Detail

loadPasswords

Iterable<String> loadPasswords(SessionContext session)
                        throws IOException,
                               GeneralSecurityException

Parameters:

session - The SessionContext for invoking this load command - may be null if not invoked within a session context (e.g., offline tool).

Returns:

The currently available passwords - ignored if null

Throws:

IOException - If failed to load the passwords

GeneralSecurityException - If some security issue with the passwords

iteratorOf

static Iterator<String> iteratorOf(SessionContext session,
                                   PasswordIdentityProvider identities,
                                   PasswordIdentityProvider passwords)
                            throws IOException,
                                   GeneralSecurityException

Creates a "unified" Iterator of passwords out of 2 possible PasswordIdentityProvider

Parameters:

session - The SessionContext for invoking this load command - may be null if not invoked within a session context (e.g., offline tool).

identities - The registered passwords

passwords - Extra available passwords

Returns:

The wrapping iterator

Throws:

IOException - If failed to load the passwords

GeneralSecurityException - If some security issue with the passwords

See Also:

resolvePasswordIdentityProvider(SessionContext, PasswordIdentityProvider, PasswordIdentityProvider)

iteratorOf

static Iterator<String> iteratorOf(SessionContext session,
                                   PasswordIdentityProvider provider)
                            throws IOException,
                                   GeneralSecurityException

Resolves a non-null iterator of the available passwords

Parameters:

session - The SessionContext for invoking this load command - may be null if not invoked within a session context (e.g., offline tool).

provider - The PasswordIdentityProvider - ignored if null (i.e., return an empty iterator)

Returns:

A non-null iterator - which may be empty if no provider or no passwords

Throws:

IOException - If failed to load the passwords

GeneralSecurityException - If some security issue with the passwords

resolvePasswordIdentityProvider

static PasswordIdentityProvider resolvePasswordIdentityProvider(SessionContext session,
                                                                PasswordIdentityProvider identities,
                                                                PasswordIdentityProvider passwords)

Creates a "unified" PasswordIdentityProvider out of 2 possible ones as follows:

• If both are null then return null.
• If either one is null then use the non-null one.
• If both are the same instance then use it.
• Otherwise, returns a wrapper that groups both providers.

Parameters:

session - The SessionContext for invoking this load command - may be null if not invoked within a session context (e.g., offline tool).

identities - The registered passwords

passwords - The extra available passwords

Returns:

The resolved provider

See Also:

multiProvider(SessionContext, PasswordIdentityProvider...)

multiProvider

static PasswordIdentityProvider multiProvider(SessionContext session,
                                              PasswordIdentityProvider... providers)

Wraps a group of PasswordIdentityProvider into a single one

Parameters:

session - The SessionContext for invoking this load command - may be null if not invoked within a session context (e.g., offline tool).

providers - The providers - ignored if null/empty (i.e., returns EMPTY_PASSWORDS_PROVIDER

Returns:

The wrapping provider

See Also:

multiProvider(SessionContext, Collection)

multiProvider

static PasswordIdentityProvider multiProvider(SessionContext session,
                                              Collection<? extends PasswordIdentityProvider> providers)

Wraps a group of PasswordIdentityProvider into a single one

Parameters:

session - The SessionContext for invoking this load command - may be null if not invoked within a session context (e.g., offline tool).

providers - The providers - ignored if null/empty (i.e., returns EMPTY_PASSWORDS_PROVIDER

Returns:

The wrapping provider

iterableOf

static Iterable<String> iterableOf(SessionContext session,
                                   Collection<? extends PasswordIdentityProvider> providers)

Wraps a group of PasswordIdentityProvider into an Iterable of their combined passwords

Parameters:

session - The SessionContext for invoking this load command - may be null if not invoked within a session context (e.g., offline tool).

providers - The providers - ignored if null/empty (i.e., returns an empty iterable instance)

Returns:

The wrapping iterable

wrapPasswords

static PasswordIdentityProvider wrapPasswords(String... passwords)

Wraps a group of passwords into a PasswordIdentityProvider

Parameters:

passwords - The passwords - ignored if null/empty (i.e., returns EMPTY_PASSWORDS_PROVIDER)

Returns:

The provider wrapper

wrapPasswords

static PasswordIdentityProvider wrapPasswords(Iterable<String> passwords)

Wraps a group of passwords into a PasswordIdentityProvider

Parameters:

passwords - The passwords Iterable - ignored if null (i.e., returns EMPTY_PASSWORDS_PROVIDER)

Returns:

The provider wrapper