fabric.dissemination

Class AbstractGlob<Payload extends FastSerializable>

java.lang.Object

fabric.dissemination.AbstractGlob<Payload>

All Implemented Interfaces:

FastSerializable

Direct Known Subclasses:

ObjectGlob

public abstract class AbstractGlob<Payload extends FastSerializable>
extends java.lang.Object
implements FastSerializable

A glob represents data that has been encrypted and signed by a store.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AbstractGlob(java.io.DataInput in) Deserializer.
protected	AbstractGlob(Label label, java.security.PrivateKey signingKey, Payload payload)

Method Summary

Modifier and Type	Method and Description
Payload	decrypt()
protected abstract Payload	deserializePayload(java.io.DataInput in) Deserializes a payload object from the given input.
long	getTimestamp()
boolean	isOlderThan(AbstractGlob<?> glob) Whether this Glob is older than the given Glob.
abstract boolean	updateCache(Cache dissemCache, RemoteStore store, long onum) Updates the worker and dissemination caches with this glob.
protected abstract void	verifyNoSignatureRequired(Payload payload) Verifies that the given payload does not require a signature.
void	verifySignature(java.security.PublicKey key)
void	write(java.io.DataOutput out) Serializer.

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractGlob

protected AbstractGlob(Label label,
                       java.security.PrivateKey signingKey,
                       Payload payload)

Parameters:

label - the label at which this glob is protected.

signingKey - the key with which to sign the payload.

payload - the payload to be encrypted.

AbstractGlob

protected AbstractGlob(java.io.DataInput in)
                throws java.io.IOException

Deserializer.

Throws:

java.io.IOException

Method Detail

isOlderThan

public boolean isOlderThan(AbstractGlob<?> glob)

Whether this Glob is older than the given Glob.

verifySignature

public void verifySignature(java.security.PublicKey key)
                     throws java.security.SignatureException,
                            java.security.InvalidKeyException

Throws:

java.security.SignatureException

java.security.InvalidKeyException

verifyNoSignatureRequired

protected abstract void verifyNoSignatureRequired(Payload payload)
                                           throws java.security.SignatureException

Verifies that the given payload does not require a signature.

Throws:

java.security.SignatureException - if the payload requires a signature.

write

public void write(java.io.DataOutput out)
           throws java.io.IOException

Serializer.

Specified by:

write in interface FastSerializable

Throws:

java.io.IOException

decrypt

public Payload decrypt()

deserializePayload

protected abstract Payload deserializePayload(java.io.DataInput in)
                                       throws java.io.IOException

Deserializes a payload object from the given input.

Throws:

java.io.IOException

getTimestamp

public long getTimestamp()

updateCache

public abstract boolean updateCache(Cache dissemCache,
                                    RemoteStore store,
                                    long onum)

Updates the worker and dissemination caches with this glob. If the caches do not have entries for this glob, then nothing is changed.

Returns:

true iff either cache was changed.