uk.ac.soton.itinnovation.grid.types
Class ConversationID

java.lang.Object
  uk.ac.soton.itinnovation.grid.types.ConversationID

public abstract class ConversationID
extends Object

Utility class for handling EPRs. This class contains methods to create, update and query EPRs. In particular, it handles the label and resource ID elements used by the GRIA services.

Field Summary

static QName	ADDITIONAL_SECURITY_TOKEN Used in EPR's Metadata and in SubjectDescription to hold a security token.
static QName	BILLING_INFO The name of the SOAP header containing an account or SLA.
static String	GRID_NS XML namespace for some of our elements.
static String	GRID_NS_2007
static PrefixedQName	ITI_CONVERSATION_NAME The SOAP header element that identifies the primary context.
static String	XMLNS_OGSA_BP OGSA Basic Profile.

Method Summary

static void	addAdditionalToken(org.apache.axis.message.addressing.EndpointReferenceType EPR, Element token) Add a security token to the EPR's metadata.
static void	addKeyInfo(org.apache.axis.message.addressing.EndpointReferenceType EPR, X509Certificate serverCert) Add the service's key information.
static void	cleanMetadata(org.apache.axis.message.addressing.EndpointReferenceType epr)
static MessageElement[]	getAdditionalTokens(org.apache.axis.message.addressing.EndpointReferenceType EPR) Get all extra security tokens.
static String	getConversationFromEPR(org.apache.axis.message.addressing.EndpointReferenceType EPR) Returns the ConversationID from an EPR, or null if there isn't one.
static String	getConversationFromParameters(org.apache.axis.message.addressing.ReferenceParametersType refParams) Get a resource ID.
static String	getDefaultSLA(org.apache.axis.message.addressing.EndpointReferenceType EPR) Get the resource default sla (if any) from the EPR's metadata.
static org.apache.axis.message.addressing.EndpointReferenceType	getEPR(org.apache.axis.message.addressing.AttributedURI endpoint, String conversationID) Construct an EPR with the given address and resource ID.
static org.apache.axis.message.addressing.EndpointReferenceType	getEPR(String URLreference) Split URLreference at the '#' and use the fragment as the resource ID.
static org.apache.axis.message.addressing.EndpointReferenceType	getEPR(URL endpoint, String conversationID) Construct an EPR with the given address and resource ID.
static org.apache.axis.message.addressing.EndpointReferenceType	getEPR(URL endpoint, String conversationID, String label) Create a new EPR.
static X509Certificate	getKeyInfo(org.apache.axis.message.addressing.EndpointReferenceType EPR) Get the service's certificate.
static MessageElement	getKeyInfo(X509Certificate serverCert) Gets a MessageElement containing the service provider's key information.
static String	getLabel(org.apache.axis.message.addressing.EndpointReferenceType EPR) Get the human-readable label (if any) from the EPR's metadata.
static String	getManagingResource(org.apache.axis.message.addressing.EndpointReferenceType EPR) Get the managing resource (if any) from the EPR's metadata.
static String	getMeta(org.apache.axis.message.addressing.EndpointReferenceType EPR, QName key) Return the string contents of the first metadata element with the given name.
static URL	getParent(org.apache.axis.message.addressing.EndpointReferenceType EPR) Get the parent object's URL
static String	getPullPoint(org.apache.axis.message.addressing.EndpointReferenceType EPR) Get the pull-point (if any) from the EPR's metadata.
static String	getResourceStatus(org.apache.axis.message.addressing.EndpointReferenceType EPR) Get the resource status (if any) from the EPR's metadata.
static String	getResourceType(org.apache.axis.message.addressing.EndpointReferenceType EPR) Get the resource type (if any) from the EPR's metadata.
static String	getType(org.apache.axis.message.addressing.EndpointReferenceType EPR) Get the resource type (if any) from the EPR's metadata.
static String	getURLFromEPR(org.apache.axis.message.addressing.EndpointReferenceType EPR)
static String	getURLReferenceFromEPR(org.apache.axis.message.addressing.EndpointReferenceType EPR)
static org.apache.axis.message.addressing.EndpointReferenceType	sanitised(org.apache.axis.message.addressing.EndpointReferenceType source) Return a minimal EPR with just the endpoint, conversation ID and KeyInfo fields.
static void	setDefaultSLA(org.apache.axis.message.addressing.EndpointReferenceType EPR, String sla) Set the default SLA in the EPR's metadata.
static void	setLabel(org.apache.axis.message.addressing.EndpointReferenceType EPR, String label)
static void	setManagingResource(org.apache.axis.message.addressing.EndpointReferenceType EPR, String managingResource) Set the managing resource in the EPR's metadata.
static void	setMeta(org.apache.axis.message.addressing.EndpointReferenceType EPR, QName key, String value) Set a meta-data element to the given value.
static void	setParent(org.apache.axis.message.addressing.EndpointReferenceType EPR, URL parent) Set the RESOURCE_PARENT metadata element to this value.
static void	setPullPoint(org.apache.axis.message.addressing.EndpointReferenceType EPR, String pullpoint) Set the pull-point in the EPR's metadata.
static void	setResourceStatus(org.apache.axis.message.addressing.EndpointReferenceType EPR, String type) Set the resource status in the EPR's metadata.
static void	setResourceType(org.apache.axis.message.addressing.EndpointReferenceType EPR, String type) Set the resource type in the EPR's metadata.
static void	setType(org.apache.axis.message.addressing.EndpointReferenceType EPR, Class type) Set the resource type in the EPR's metadata.
static void	setType(org.apache.axis.message.addressing.EndpointReferenceType EPR, String type) Set the type in the EPR's metadata.
static boolean	updateMetadata(org.apache.axis.message.addressing.EndpointReferenceType EPR, org.apache.axis.message.addressing.EndpointReferenceType newEPR) Updates an EPR with values from newEPR.

Methods inherited from class java.lang.Object

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

Field Detail

GRID_NS

public static final String GRID_NS

XML namespace for some of our elements.

See Also:

Constant Field Values

GRID_NS_2007

public static final String GRID_NS_2007

See Also:

Constant Field Values

XMLNS_OGSA_BP

public static final String XMLNS_OGSA_BP

OGSA Basic Profile. Basic Security Profile 1.0 - Core January 31, 2006

See Also:

Constant Field Values

ADDITIONAL_SECURITY_TOKEN

public static final QName ADDITIONAL_SECURITY_TOKEN

Used in EPR's Metadata and in SubjectDescription to hold a security token.

BILLING_INFO

public static final QName BILLING_INFO

The name of the SOAP header containing an account or SLA. This is typically used when creating a new resource, to indicate where usage of the resource should be reported.

ITI_CONVERSATION_NAME

public static final PrefixedQName ITI_CONVERSATION_NAME

The SOAP header element that identifies the primary context.

Method Detail

getConversationFromEPR

public static String getConversationFromEPR(org.apache.axis.message.addressing.EndpointReferenceType EPR)

Returns the ConversationID from an EPR, or null if there isn't one.

getURLFromEPR

public static String getURLFromEPR(org.apache.axis.message.addressing.EndpointReferenceType EPR)

getURLReferenceFromEPR

public static String getURLReferenceFromEPR(org.apache.axis.message.addressing.EndpointReferenceType EPR)

getConversationFromParameters

public static String getConversationFromParameters(org.apache.axis.message.addressing.ReferenceParametersType refParams)

Get a resource ID.

Parameters:

refParams - the reference parameters from an EPR to check

Returns:

the value of the first ITI_CONVERSATION_NAME reference parameter, or null if there isn't one

getEPR

public static org.apache.axis.message.addressing.EndpointReferenceType getEPR(URL endpoint,
                                                                              String conversationID)

Construct an EPR with the given address and resource ID.

Parameters:

endpoint - the service endpoint address

conversationID - the value for the resource ID reference parameter

getEPR

public static org.apache.axis.message.addressing.EndpointReferenceType getEPR(org.apache.axis.message.addressing.AttributedURI endpoint,
                                                                              String conversationID)

Construct an EPR with the given address and resource ID.

Parameters:

endpoint - the service endpoint address

conversationID - the value for the resource ID reference parameter

getEPR

public static org.apache.axis.message.addressing.EndpointReferenceType getEPR(String URLreference)

Split URLreference at the '#' and use the fragment as the resource ID. If there is no '#' in the URL, the resulting EPR won't contain a resource ID.

getEPR

public static org.apache.axis.message.addressing.EndpointReferenceType getEPR(URL endpoint,
                                                                              String conversationID,
                                                                              String label)

Create a new EPR. The conversationID is stored as a reference parameter. If label is given, it is stored as a Dublin Core Title element in the EPR's metadata.

Parameters:

endpoint - the address of the service endpoint

conversationID - the unique ID identifying this resource

label - a human-readable name for the resource, or null.

getLabel

public static String getLabel(org.apache.axis.message.addressing.EndpointReferenceType EPR)

Get the human-readable label (if any) from the EPR's metadata.

Returns:

the label, or null if there isn't one.

setLabel

public static void setLabel(org.apache.axis.message.addressing.EndpointReferenceType EPR,
                            String label)

getParent

public static URL getParent(org.apache.axis.message.addressing.EndpointReferenceType EPR)

Get the parent object's URL

Returns:

the parent's URL, or null if there isn't one.

setParent

public static void setParent(org.apache.axis.message.addressing.EndpointReferenceType EPR,
                             URL parent)

Set the RESOURCE_PARENT metadata element to this value. Used by the GRIA client to record parent-child relationships between EPRs, for example.

Parameters:

EPR - the EPR to modify

parent - the URL Reference of the parent (in the form "service#resource")

See Also:

getEPR(String)

getDefaultSLA

public static String getDefaultSLA(org.apache.axis.message.addressing.EndpointReferenceType EPR)

Get the resource default sla (if any) from the EPR's metadata.

Returns:

the type, or null if there isn't one.

setDefaultSLA

public static void setDefaultSLA(org.apache.axis.message.addressing.EndpointReferenceType EPR,
                                 String sla)

Set the default SLA in the EPR's metadata.

getResourceStatus

public static String getResourceStatus(org.apache.axis.message.addressing.EndpointReferenceType EPR)

Get the resource status (if any) from the EPR's metadata.

Returns:

the status, or null if there isn't one.

setResourceStatus

public static void setResourceStatus(org.apache.axis.message.addressing.EndpointReferenceType EPR,
                                     String type)

Set the resource status in the EPR's metadata.

getResourceType

public static String getResourceType(org.apache.axis.message.addressing.EndpointReferenceType EPR)

Get the resource type (if any) from the EPR's metadata.

Returns:

the type, or null if there isn't one.

setResourceType

public static void setResourceType(org.apache.axis.message.addressing.EndpointReferenceType EPR,
                                   String type)

Set the resource type in the EPR's metadata.

getType

public static String getType(org.apache.axis.message.addressing.EndpointReferenceType EPR)

Get the resource type (if any) from the EPR's metadata. This type is used only by the client.

Returns:

the type, or null if there isn't one.

setType

public static void setType(org.apache.axis.message.addressing.EndpointReferenceType EPR,
                           String type)

Set the type in the EPR's metadata.

setType

public static void setType(org.apache.axis.message.addressing.EndpointReferenceType EPR,
                           Class type)

Set the resource type in the EPR's metadata.

getManagingResource

public static String getManagingResource(org.apache.axis.message.addressing.EndpointReferenceType EPR)

Get the managing resource (if any) from the EPR's metadata.

Returns:

the URI-reference for the resource, or null if there isn't one.

setManagingResource

public static void setManagingResource(org.apache.axis.message.addressing.EndpointReferenceType EPR,
                                       String managingResource)

Set the managing resource in the EPR's metadata.

Parameters:

managingResource - the ID (in the form http://service/...#ConversationID) of the managing resource

getKeyInfo

public static X509Certificate getKeyInfo(org.apache.axis.message.addressing.EndpointReferenceType EPR)
                                  throws org.apache.ws.security.WSSecurityException

Get the service's certificate.

Returns:

the certificate, or null if the EPR doesn't give it

Throws:

org.apache.ws.security.WSSecurityException

getKeyInfo

public static MessageElement getKeyInfo(X509Certificate serverCert)

Gets a MessageElement containing the service provider's key information.

Parameters:

serverCert - the servers X509 Certificate

Returns:

a MessageElement containing the service provider's key

addKeyInfo

public static void addKeyInfo(org.apache.axis.message.addressing.EndpointReferenceType EPR,
                              X509Certificate serverCert)

Add the service's key information. This is used to store the X.509 certificate of the service, so that clients can check the signature, even if the service's certificate isn't globally trusted by them.

getPullPoint

public static String getPullPoint(org.apache.axis.message.addressing.EndpointReferenceType EPR)

Get the pull-point (if any) from the EPR's metadata.

Returns:

the type, or null if there isn't one.

setPullPoint

public static void setPullPoint(org.apache.axis.message.addressing.EndpointReferenceType EPR,
                                String pullpoint)

Set the pull-point in the EPR's metadata.

getAdditionalTokens

public static MessageElement[] getAdditionalTokens(org.apache.axis.message.addressing.EndpointReferenceType EPR)

Get all extra security tokens. Returns an array of metadata elements with the QName ADDITIONAL_SECURITY_TOKEN.

Returns:

an array containing all metadata elements which are additional tokens

See Also:

addAdditionalToken(org.apache.axis.message.addressing.EndpointReferenceType, org.w3c.dom.Element)

addAdditionalToken

public static void addAdditionalToken(org.apache.axis.message.addressing.EndpointReferenceType EPR,
                                      Element token)

Add a security token to the EPR's metadata. This token may be useful to security systems checking a user's access to the EPR.

getMeta

public static String getMeta(org.apache.axis.message.addressing.EndpointReferenceType EPR,
                             QName key)

Return the string contents of the first metadata element with the given name.

Parameters:

EPR - the EPR to search

key - the name of the meta-data element

updateMetadata

public static boolean updateMetadata(org.apache.axis.message.addressing.EndpointReferenceType EPR,
                                     org.apache.axis.message.addressing.EndpointReferenceType newEPR)

Updates an EPR with values from newEPR. If an element doesnt exist in the EPR metadata and exists in the newERP it is added, If an element exists in both EPR, the newEPR value is used

Parameters:

EPR - the EPR to update

newEPR - the EndpointReferenceType with new values

Returns:

boolean value if the EPR was updated

setMeta

public static void setMeta(org.apache.axis.message.addressing.EndpointReferenceType EPR,
                           QName key,
                           String value)

Set a meta-data element to the given value. If an element with this key already exists, its contents are replaced with this value.

Parameters:

EPR - the EPR to modify

key - the name of the meta-data element to create or update

value - the new value for the element

cleanMetadata

public static void cleanMetadata(org.apache.axis.message.addressing.EndpointReferenceType epr)

sanitised

public static org.apache.axis.message.addressing.EndpointReferenceType sanitised(org.apache.axis.message.addressing.EndpointReferenceType source)

Return a minimal EPR with just the endpoint, conversation ID and KeyInfo fields.