de.schlichtherle.truezip.crypto.raes.param
Class KeyManagerRaesParameters

java.lang.Object
  de.schlichtherle.truezip.crypto.raes.param.KeyManagerRaesParameters

All Implemented Interfaces:

RaesParameters, RaesParametersAgent

@DefaultAnnotation(value=edu.umd.cs.findbugs.annotations.NonNull.class)
public final class KeyManagerRaesParameters
extends Object
implements RaesParametersAgent

An adapter which retrieves RaesParameters by using a KeyManager.

According to the requirements of RAES, only password based encryption is supported. The adapter pattern allows this class to be changed to support other encryption and authentication schemes in future versions without requiring to change the client code.

Author:

Christian Schlichtherle

service

private final KeyManagerService service

resource

private final URI resource

KeyManagerRaesParameters

public KeyManagerRaesParameters(KeyManagerService service,
                                URI resource)

Constructs a new set of default RAES parameters.

Parameters:

resource - the non-null absolute, hierarchical and normalized URI of the RAES file.

getParameters

public RaesParameters getParameters(Class<? extends RaesParameters> type)

Description copied from interface: RaesParametersAgent

Requests a RaesParameters instance of the given type. It is permissible to return an instance of any other implementation of the RaesParameters interface. If the returned object is an instance of an implementation of this interface, it will be used to continue the search for RAES parameters recursively. Otherwise the search will be aborted.

Specified by:

getParameters in interface RaesParametersAgent

Parameters:

type - The RaesParameters interface class which's implementation is searched.

Returns:

An instance of RaesParameters or null if no RAES parameters are available.