org.apache.sshd.client.config.keys

Class LazyClientIdentityIterator

java.lang.Object

org.apache.sshd.client.config.keys.LazyClientIdentityIterator

All Implemented Interfaces:

Iterator<KeyPair>

public class LazyClientIdentityIterator
extends Object
implements Iterator<KeyPair>

Wraps several ClientIdentityProvider into a KeyPair Iterator that invokes each provider "lazily" - i.e., only when Iterator.hasNext() is invoked. This prevents password protected private keys to be decrypted until they are actually needed.

Author:

Apache MINA SSHD Project

Field Summary

Fields

Modifier and Type	Field and Description
protected Iterator<KeyPair>	currentIdentities
protected KeyPair	currentPair
protected boolean	finished

Constructor Summary

Constructors

Constructor and Description
LazyClientIdentityIterator(Iterator<? extends ClientIdentityProvider> providers, Function<? super ClientIdentityProvider,? extends Iterable<KeyPair>> kpExtractor, Predicate<KeyPair> filter)

Method Summary

Modifier and Type	Method and Description
Predicate<KeyPair>	getFilter()
Function<? super ClientIdentityProvider,? extends Iterable<KeyPair>>	getIdentitiesExtractor()
Iterator<? extends ClientIdentityProvider>	getProviders()
boolean	hasNext()
KeyPair	next()
String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Iterator

forEachRemaining, remove

Field Detail

finished

protected boolean finished

currentIdentities

protected Iterator<KeyPair> currentIdentities

currentPair

protected KeyPair currentPair

Constructor Detail

LazyClientIdentityIterator

public LazyClientIdentityIterator(Iterator<? extends ClientIdentityProvider> providers,
                                  Function<? super ClientIdentityProvider,? extends Iterable<KeyPair>> kpExtractor,
                                  Predicate<KeyPair> filter)

Parameters:

providers - The providers - ignored if null

kpExtractor - The (never null) extractor of the KeyPair from the ClientIdentityProvider argument. If returned pair is null then next provider is queried.

filter - Any further filter to apply on (non-null) key pairs before returning it as the Iterator.next() result.

Method Detail

getProviders

public Iterator<? extends ClientIdentityProvider> getProviders()

getIdentitiesExtractor

public Function<? super ClientIdentityProvider,? extends Iterable<KeyPair>> getIdentitiesExtractor()

getFilter

public Predicate<KeyPair> getFilter()

hasNext

public boolean hasNext()

Specified by:

hasNext in interface Iterator<KeyPair>

next

public KeyPair next()

Specified by:

next in interface Iterator<KeyPair>

toString

public String toString()

Overrides:

toString in class Object