infoservice.agreement.paxos.integration
Class InfoServiceMessageFactory

java.lang.Object
  infoservice.agreement.paxos.integration.InfoServiceMessageFactory

public class InfoServiceMessageFactory
extends java.lang.Object

Constructor Summary

InfoServiceMessageFactory()

Method Summary

private static boolean	checkOriginator(org.w3c.dom.Node a_node, java.lang.String a_sender) Checks the originator of the message, i.e.
private static boolean	checkProofs(CollectMessage message) Checks the signatures of the attached FreezeProofMessages
private static FreezeProofMessage	createFreezeProof(org.w3c.dom.Node rootNode) Creates a FreezeProofMessage off the given node
static PaxosMessage	decode(byte[] a_data) Decodes the given POST data and creates a PaxosMessage off it
private static boolean	isSane(org.w3c.dom.Document a_doc, PaxosMessage a_msg) Checks if the sender of the message also signed the message, i.e.
private static PaxosMessage	parseDocument(org.w3c.dom.Document a_doc) Parses the given document to a PaxosMessage
private static void	parseProofs(org.w3c.dom.Node rootNode, CollectMessage message) Parse the given node for FreezeProofMessages and add them to the given CollectMessage

Methods inherited from class java.lang.Object

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

Constructor Detail

InfoServiceMessageFactory

public InfoServiceMessageFactory()

Method Detail

decode

public static PaxosMessage decode(byte[] a_data)

Decodes the given POST data and creates a PaxosMessage off it

Parameters:

a_data - The POST data to be decoded

Returns:

A PaxosMessage or null if there has been an error

parseDocument

private static PaxosMessage parseDocument(org.w3c.dom.Document a_doc)

Parses the given document to a PaxosMessage

Parameters:

a_doc -

Returns:

parseProofs

private static void parseProofs(org.w3c.dom.Node rootNode,
                                CollectMessage message)

Parse the given node for FreezeProofMessages and add them to the given CollectMessage

Parameters:

rootNode - The node containing the proofs

message - The CollectMessage to which to add the FreezeProofs

createFreezeProof

private static FreezeProofMessage createFreezeProof(org.w3c.dom.Node rootNode)

Creates a FreezeProofMessage off the given node

Parameters:

rootNode - The node to be parsed

Returns:

A FreezeProofMessage

isSane

private static boolean isSane(org.w3c.dom.Document a_doc,
                              PaxosMessage a_msg)

Checks if the sender of the message also signed the message, i.e. the senders id equals the subjectKeyIdentifier of the attached certificate

Parameters:

a_doc -

a_msg -

Returns:

checkProofs

private static boolean checkProofs(CollectMessage message)

Checks the signatures of the attached FreezeProofMessages

Parameters:

message -

Returns:

checkOriginator

private static boolean checkOriginator(org.w3c.dom.Node a_node,
                                       java.lang.String a_sender)

Checks the originator of the message, i.e. if the senders id equals the subjectKeyIdentifier of the attached certificate

Parameters:

a_node -

a_sender -

Returns: