uk.ac.soton.itinnovation.grid.service.data
Class DataServiceModule

java.lang.Object
  uk.ac.soton.itinnovation.grid.service.utils.gridservit.GridServiceLite
      uk.ac.soton.itinnovation.grid.service.data.DataServiceModule

All Implemented Interfaces:

DataService, DataServiceSOAP, DataStagerResource, LocalDataService, ManagedGridService, ReportAPI, WebAdmin, WSResourceLifetime, WSRFService, GridService, PolicyManagement, ResourceMetadata, Signallable

public class DataServiceModule
extends GridServiceLite
implements LocalDataService

Field Summary

static String

DATA_SERVICE_RESOURCE_TYPE

Fields inherited from class uk.ac.soton.itinnovation.grid.service.utils.gridservit.GridServiceLite

management, NO_ACCOUNT_NEEDED, pdp, thisServiceAddress

Fields inherited from interface uk.ac.soton.itinnovation.grid.comms.data.DataStagerResource

DATA_RESOURCE_TYPE

Fields inherited from interface uk.ac.soton.itinnovation.grid.comms.management.ManagedGridService

FREE_SERVICE

Constructor Summary

DataServiceModule()

Method Summary

void	addOwnerRule(MatchRule rule) Deprecated.
void	adoptFileLocal(String resourceID, File data) Adopt 'data' into stager.
protected void	chargeForUsage(TradeAccountConversation account, String resourceID, SubjectDescription user, BigDecimal amount, String currency, String message) Charge usage to an account.
DataStagerStatus	checkData() Reports on the status of the data stager.
DataStagerStatus	checkDataLocal(String conversationID) Reports on the status of a data stager.
boolean	checkReadAccess(SubjectDescription delegate) Checks if the quoted delegate may read from this data stager.
boolean	checkWriteAccess(SubjectDescription delegate) Checks if the quoted delegate may write to this data stager
void	copyFrom(org.apache.axis.message.addressing.EndpointReferenceType source) Copy data from another data stager.
void	copyFromLocal(String conversationID, org.apache.axis.message.addressing.EndpointReferenceType source) Copy data from another data stager.
void	copyFromURL(String source) Copy data from a normal web resource identified by a URL.
void	copyFromURLInternal(String conversationID, String source)
void	copyFromURLLocal(String conversationID, String source) Copy data from a resource identified by a URL.
void	copyOrLinkLocal(String resourceID, File destination) Copy the contents of resourceID to destination or, if possible, hard-link instead.
void	copyTo(org.apache.axis.message.addressing.EndpointReferenceType target) Copy data to another data stager.
void	copyToInternal(String conversationID, SubjectDescription user, org.apache.axis.message.addressing.EndpointReferenceType target)
void	copyToLocal(String conversationID, SubjectDescription user, org.apache.axis.message.addressing.EndpointReferenceType target) Copy data to another data stager.
org.apache.axis.message.addressing.EndpointReferenceType	createStagingArea(String label, MatchRule owner) Create a new staging area.
void	deleteContents() Delete data in the staging area.
void	deleteContentsInternal(String dataResourceID)
void	destroy() WSResource lifetime destroy
void	destroyLocal(String resourceId)
void	disableR(MatchRule delegate) Deprecated.
void	disableW(MatchRule delegate) Deprecated.
void	enableR(MatchRule delegate) Deprecated.
void	enableW(MatchRule delegate) Deprecated.
void	ensurePoliciesDeployed() Ensure that any required PBAC policies are deployed.
void	finishData() Deprecated.
void	finishDataLocal(String resourceID) Like finishData, but takes the conversation as an argument instead of getting it from the process context.
Document	getAtomFeed(String atomFeed, String serviceBase) Return notices from the service as an Atom feed.
MatchRule[]	getManagerRules() Deprecated.
NotificationMessage[]	getMessages() Returns all usage messages
NotificationMessage[]	getMessagesN(int MaximumNumber) Returns usage messages
MatchRule[]	getOwnerRules() Deprecated.
MatchRule[]	getReaderRules() Deprecated.
org.apache.axis.message.addressing.EndpointReferenceType[]	getResources() List the resources managed by this service for which the caller has some role.
protected Class<? extends GridResource>	getResourceType(String resourceID) Return the class of this resource's bean.
MatchRule[]	getWriterRules() Deprecated.
String	initStagingAreaLocal(MatchRule user, String label, org.apache.axis.message.addressing.EndpointReferenceType ownerEPR, String eventListenerClassName, boolean internal) Create a new empty data stager managed not by a managing service, but a proxy class.
String	initStagingAreaLocal(MatchRule user, String label, StorableInStateRepository managingConversation, boolean internal) Create a new empty data stager.
javax.activation.DataHandler	read() Read data from the stager.
void	reloadConfiguration() Reload the configuration.
void	removeOwnerRule(MatchRule rule) Deprecated.
void	save(javax.activation.DataHandler data) Store data in the stager.
void	writeEnable() Write enable the staging area.
void	writeProtect() Write protect the staging area.

Methods inherited from class uk.ac.soton.itinnovation.grid.service.utils.gridservit.GridServiceLite

addHibernatedObject, addPolicyRule, addTrustedAccountService, deleteHibernatedObject, generateEPR, getAvailableSignals, getConversationFromContext, getCurrentUser, getEPR, getEPR, getManagingConversation, getPolicyRules, getPrivateKey, getResourceFromEPR, GetResourceProperty, getResources, getResources, getResourcesFromEPRs, getServiceFromEPR, getServiceProviderCertificate, getServiceProviderID, getServiceProviderIssuer, getTrustedAccountServices, getValidRoles, removePolicyRule, removeTrustedAccountService, RequestSecurityToken_Issuance, RequestSecurityToken_Validation, RequestSecurityToken, setLabel, setLabel, signal, validateOwner

Methods inherited from class java.lang.Object

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

Methods inherited from interface uk.ac.soton.itinnovation.grid.comms.data.LocalDataService

getEPR

Methods inherited from interface uk.ac.soton.itinnovation.grid.types.PolicyManagement

addPolicyRule, getPolicyRules, getValidRoles, removePolicyRule

Methods inherited from interface uk.ac.soton.itinnovation.grid.types.ResourceMetadata

getEPR, setLabel

Methods inherited from interface uk.ac.soton.itinnovation.grid.types.Signallable

getAvailableSignals, signal

Methods inherited from interface uk.ac.soton.itinnovation.grid.comms.management.ManagedGridService

addTrustedAccountService, getTrustedAccountServices, removeTrustedAccountService

Methods inherited from interface uk.ac.soton.itinnovation.grid.comms.wsrf.WSRFService

GetResourceProperty

Methods inherited from interface uk.ac.soton.itinnovation.grid.types.GridService

getServiceProviderID, getServiceProviderIssuer

Field Detail

DATA_SERVICE_RESOURCE_TYPE

public static final String DATA_SERVICE_RESOURCE_TYPE

See Also:

Constant Field Values

Constructor Detail

DataServiceModule

public DataServiceModule()

Method Detail

reloadConfiguration

public void reloadConfiguration()
                         throws GridFailureException

Reload the configuration. Used by the admin tool.

Throws:

Exception - if the configuration is not yet valid

GridFailureException

ensurePoliciesDeployed

public void ensurePoliciesDeployed()
                            throws GridFailureException

Description copied from interface: WebAdmin

Ensure that any required PBAC policies are deployed.

Specified by:

ensurePoliciesDeployed in interface WebAdmin

Throws:

GridFailureException

createStagingArea

public org.apache.axis.message.addressing.EndpointReferenceType createStagingArea(String label,
                                                                                  MatchRule owner)
                                                                           throws RemoteException

Description copied from interface: DataService

Create a new staging area.

Specified by:

createStagingArea in interface DataService

Parameters:

label - label for new stager

owner - A rule to allow access for the owner role

Returns:

the End Point Reference of the new resource

Throws:

RemoteException

initStagingAreaLocal

public String initStagingAreaLocal(MatchRule user,
                                   String label,
                                   org.apache.axis.message.addressing.EndpointReferenceType ownerEPR,
                                   String eventListenerClassName,
                                   boolean internal)
                            throws RemoteException

Description copied from interface: LocalDataService

Create a new empty data stager managed not by a managing service, but a proxy class. In some situations the author of a service may want to use data stagers internally to contain information (eg. the job service uses data stagers to hold inputs and outputs to the job). Using this method allows the service author to define a proxy class to send usage reports to, so that they can be aggregated from all data stagers and sent in one go. The service class should implement the DataEventListener interface and be supplied as the eventListener argument to this method.

Specified by:

initStagingAreaLocal in interface LocalDataService

Parameters:

user - the initial policy; the role can be "owner", "manager", "reader" or "writer"

label - label for new stager

ownerEPR - the EPR of a resource that "owns" this stager. A conversation using this EPR will be passed to the eventListener implementation when an event occurs. The service can then call getEndpointRef to retreive it.

eventListenerClassName - the full class name of an implementation of DataEventListener

internal - stager is part of another resource (e.g., the output of a job). This should be true when using this method

Returns:

the new resourceID

Throws:

RemoteException

initStagingAreaLocal

public String initStagingAreaLocal(MatchRule user,
                                   String label,
                                   StorableInStateRepository managingConversation,
                                   boolean internal)
                            throws RemoteException

Description copied from interface: LocalDataService

Create a new empty data stager. This is used by initStagingArea(), and directly by the job service. 'user' gets the given role, but must be able to bill to accountEPR. It does NOT check that managingConversation is trusted or that the user has permission to use it Internal resources are not returned by getResources() and cannot be destroyed via the public interface.

Specified by:

initStagingAreaLocal in interface LocalDataService

Parameters:

user - the initial policy; the role can be "owner", "manager", "reader" or "writer"

label - label for new stager

managingConversation - an SLAConversation or TradeAccountConversation to manage this resource, or null if free

internal - stager is part of another resource (e.g., the output of a job)

Returns:

the new resourceID

Throws:

RemoteException

save

public void save(javax.activation.DataHandler data)
          throws RemoteException

Description copied from interface: DataStagerResource

Store data in the stager.

Specified by:

save in interface DataStagerResource

Parameters:

data - - data handler for the SOAP attachment

Throws:

RemoteException

read

public javax.activation.DataHandler read()
                                  throws GridFailureException

Description copied from interface: DataStagerResource

Read data from the stager.

Specified by:

read in interface DataStagerResource

Returns:

DataHandler

Throws:

GridFailureException

copyFrom

public void copyFrom(org.apache.axis.message.addressing.EndpointReferenceType source)
              throws GridFailureException

Description copied from interface: DataStagerResource

Copy data from another data stager.

Specified by:

copyFrom in interface DataStagerResource

Parameters:

source - the data stager from which the data will be fetched

Throws:

GridFailureException

copyFromLocal

public void copyFromLocal(String conversationID,
                          org.apache.axis.message.addressing.EndpointReferenceType source)
                   throws GridFailureException

Description copied from interface: LocalDataService

Copy data from another data stager.

Specified by:

copyFromLocal in interface LocalDataService

Parameters:

conversationID - the resource ID of the local data stager into which data will be copied

source - the data stager from which the data will be fetched

Throws:

GridFailureException

copyFromURL

public void copyFromURL(String source)
                 throws GridFailureException

Description copied from interface: DataStagerResource

Copy data from a normal web resource identified by a URL. If the protocol is HTTPS then this service provider needs to trust the CA for the source's certificate. For HTTP and FTP protocols, there is no security (integrity or confidentiality). Note: to copy from a GRIA data stager, use DataStagerResource.copyFrom(org.apache.axis.message.addressing.EndpointReferenceType) instead.

Specified by:

copyFromURL in interface DataStagerResource

Parameters:

source - the source from which the data will be fetched

Throws:

GridFailureException

copyFromURLLocal

public void copyFromURLLocal(String conversationID,
                             String source)
                      throws GridFailureException

Description copied from interface: LocalDataService

Copy data from a resource identified by a URL. If the protocol is HTTPS then this service provider needs to trust the CA for the source's certificate. For HTTP and FTP protocols, there is no security (integrity or confidentiality).

Specified by:

copyFromURLLocal in interface LocalDataService

Parameters:

conversationID - the resource ID of the local data stager into which data will be copied

source - the source URL from which the data will be fetched

Throws:

GridFailureException

copyFromURLInternal

public void copyFromURLInternal(String conversationID,
                                String source)
                         throws GridFailureException

Throws:

GridFailureException

copyTo

public void copyTo(org.apache.axis.message.addressing.EndpointReferenceType target)
            throws GridFailureException

Description copied from interface: DataStagerResource

Copy data to another data stager.

Specified by:

copyTo in interface DataStagerResource

Parameters:

target - the data stager to which this stager's data will be copied

Throws:

GridFailureException

copyToLocal

public void copyToLocal(String conversationID,
                        SubjectDescription user,
                        org.apache.axis.message.addressing.EndpointReferenceType target)
                 throws GridFailureException

Description copied from interface: LocalDataService

Copy data to another data stager.

Specified by:

copyToLocal in interface LocalDataService

Parameters:

conversationID - the resource ID of the local data stager from which data will be copied

user - the SubjectDescription of the user who needs access to the target stager

target - the data stager into which the data will be copied

Throws:

GridFailureException

copyToInternal

public void copyToInternal(String conversationID,
                           SubjectDescription user,
                           org.apache.axis.message.addressing.EndpointReferenceType target)
                    throws GridFailureException

Throws:

GridFailureException

writeEnable

public void writeEnable()
                 throws GridFailureException

Description copied from interface: DataStagerResource

Write enable the staging area.

Specified by:

writeEnable in interface DataStagerResource

Throws:

GridFailureException

See Also:

DataStagerResource.writeProtect()

writeProtect

public void writeProtect()
                  throws GridFailureException

Description copied from interface: DataStagerResource

Write protect the staging area. The save() and delete() operations cannot be performed after this, until writeEnable is used.

Specified by:

writeProtect in interface DataStagerResource

Throws:

GridFailureException

addOwnerRule

@Deprecated
public void addOwnerRule(MatchRule rule)
                  throws GridFailureException

Deprecated.

Description copied from interface: DataStagerResource

Adds a rule to the ACL for the 'owner' role.

Specified by:

addOwnerRule in interface DataStagerResource

Parameters:

rule - the rule to add

Throws:

GridFailureException

removeOwnerRule

@Deprecated
public void removeOwnerRule(MatchRule rule)
                     throws GridFailureException

Deprecated.

Description copied from interface: DataStagerResource

Removes a rule from the ACL for the 'owner' role.

Specified by:

removeOwnerRule in interface DataStagerResource

Parameters:

rule - the rule to add

Throws:

GridFailureException

enableR

@Deprecated
public void enableR(MatchRule delegate)
             throws GridFailureException

Deprecated.

Description copied from interface: DataStagerResource

Enable read for the staging area and a delegate.

Specified by:

enableR in interface DataStagerResource

Parameters:

delegate - - delegate user

Throws:

GridFailureException

disableR

@Deprecated
public void disableR(MatchRule delegate)
              throws GridFailureException

Deprecated.

Description copied from interface: DataStagerResource

Disable read for the staging area and a delegate.

Specified by:

disableR in interface DataStagerResource

Parameters:

delegate - - delegate user

Throws:

GridFailureException

enableW

@Deprecated
public void enableW(MatchRule delegate)
             throws GridFailureException

Deprecated.

Description copied from interface: DataStagerResource

Enable write for the staging area and a delegate.

Specified by:

enableW in interface DataStagerResource

Parameters:

delegate - - delegate user

Throws:

GridFailureException

disableW

@Deprecated
public void disableW(MatchRule delegate)
              throws GridFailureException

Deprecated.

Description copied from interface: DataStagerResource

Disable write for the staging area and a delegate.

Specified by:

disableW in interface DataStagerResource

Parameters:

delegate - - delegate user

Throws:

GridFailureException

getReaderRules

@Deprecated
public MatchRule[] getReaderRules()
                           throws GridFailureException

Deprecated.

Description copied from interface: DataStagerResource

List the current reader rules.

Specified by:

getReaderRules in interface DataStagerResource

Throws:

GridFailureException

getWriterRules

@Deprecated
public MatchRule[] getWriterRules()
                           throws GridFailureException

Deprecated.

Description copied from interface: DataStagerResource

List the current writer rules.

Specified by:

getWriterRules in interface DataStagerResource

Throws:

GridFailureException

getManagerRules

@Deprecated
public MatchRule[] getManagerRules()
                            throws GridFailureException

Deprecated.

Description copied from interface: DataStagerResource

List the current manager rules.

Specified by:

getManagerRules in interface DataStagerResource

Throws:

GridFailureException

getOwnerRules

@Deprecated
public MatchRule[] getOwnerRules()
                          throws GridFailureException

Deprecated.

Description copied from interface: DataStagerResource

List the current owner rules.

Specified by:

getOwnerRules in interface DataStagerResource

Throws:

GridFailureException

deleteContents

public void deleteContents()
                    throws GridFailureException

Description copied from interface: DataStagerResource

Delete data in the staging area.

Specified by:

deleteContents in interface DataStagerResource

Throws:

GridFailureException

deleteContentsInternal

public void deleteContentsInternal(String dataResourceID)
                            throws GridFailureException

Throws:

GridFailureException

checkReadAccess

public boolean checkReadAccess(SubjectDescription delegate)
                        throws GridFailureException

Description copied from interface: DataStagerResource

Checks if the quoted delegate may read from this data stager.

Specified by:

checkReadAccess in interface DataStagerResource

Parameters:

delegate - - delegate user

Returns:

boolean - success / failure

Throws:

GridFailureException

checkWriteAccess

public boolean checkWriteAccess(SubjectDescription delegate)
                         throws GridFailureException

Description copied from interface: DataStagerResource

Checks if the quoted delegate may write to this data stager

Specified by:

checkWriteAccess in interface DataStagerResource

Parameters:

delegate - - delegate user

Returns:

boolean - success / failure

Throws:

GridFailureException

checkData

public DataStagerStatus checkData()
                           throws GridFailureException

Description copied from interface: DataStagerResource

Reports on the status of the data stager.

Specified by:

checkData in interface DataStagerResource

Throws:

GridFailureException

checkDataLocal

public DataStagerStatus checkDataLocal(String conversationID)
                                throws GridFailureException

Description copied from interface: LocalDataService

Reports on the status of a data stager.

Specified by:

checkDataLocal in interface LocalDataService

Parameters:

conversationID - The resource ID of the data stager being checked.

Throws:

GridFailureException

finishData

@Deprecated
public void finishData()
                throws GridFailureException

Deprecated.

Description copied from interface: DataStagerResource

Finishes the staging area.

Specified by:

finishData in interface DataStagerResource

Throws:

GridFailureException

finishDataLocal

public void finishDataLocal(String resourceID)
                     throws GridFailureException

Description copied from interface: LocalDataService

Like finishData, but takes the conversation as an argument instead of getting it from the process context. This allows in-process calls (e.g., from the job service).

Specified by:

finishDataLocal in interface LocalDataService

Throws:

GridFailureException

getResources

public org.apache.axis.message.addressing.EndpointReferenceType[] getResources()
                                                                        throws GridFailureException

Description copied from interface: GridService

List the resources managed by this service for which the caller has some role.

Specified by:

getResources in interface GridService

Throws:

GridFailureException

getResourceType

protected Class<? extends GridResource> getResourceType(String resourceID)

Description copied from class: GridServiceLite

Return the class of this resource's bean. Override this in subclasses if your service is contextualised. Often, resourceID can be ignored as each service only manages one type of bean anyway.

Overrides:

getResourceType in class GridServiceLite

copyOrLinkLocal

public void copyOrLinkLocal(String resourceID,
                            File destination)
                     throws GridFailureException

Description copied from interface: LocalDataService

Copy the contents of resourceID to destination or, if possible, hard-link instead. Note: if new data is uploaded to the stager, the hard-linked copy will NOT change (a new file is created instead). You MUST NOT modify 'destination' in any way - it is read-only.

Specified by:

copyOrLinkLocal in interface LocalDataService

Throws:

GridFailureException - if the stager doesn't exist or is empty.

adoptFileLocal

public void adoptFileLocal(String resourceID,
                           File data)
                    throws GridFailureException

Adopt 'data' into stager. Picks a temporary file name in the data directory and renames 'data' to it. The stager has ownership of the file, and will unlink it when the stager is finished. The file's contents will not be modified (it will become read-only), but the filename 'data' will no longer exist when this call returns.

Specified by:

adoptFileLocal in interface LocalDataService

Parameters:

resourceID - stager which will aquire data, must be empty on entry

data - existing file to be adopted, must be on same filesystem as data root

Throws:

GridFailureException

getAtomFeed

public Document getAtomFeed(String atomFeed,
                            String serviceBase)

Return notices from the service as an Atom feed.

Specified by:

getAtomFeed in interface WebAdmin

Parameters:

atomFeed - the URL of the feed

serviceBase - the service administration URL (for creating hyperlinks)

See Also:

AtomUtils

chargeForUsage

protected void chargeForUsage(TradeAccountConversation account,
                              String resourceID,
                              SubjectDescription user,
                              BigDecimal amount,
                              String currency,
                              String message)
                       throws GridFailureException

Charge usage to an account. Note: to avoid deadlocks, you MUST NOT hold a database connection (hibernate session) while calling this.

Parameters:

resourceID - the resource being used

user - the person using the stager

amount - the amount to charge

message - the message for the user's account statement This method doesn't check that the user is authorised to use the account. That is only done when creating a resource, to prevent the problem where we have access to the account but the user doesn't. We don't check after that, because the user may have been granted access by the owner of the new resource, despite not having access to the account.

Throws:

GridFailureException

getMessagesN

public NotificationMessage[] getMessagesN(int MaximumNumber)

Description copied from interface: ReportAPI

Returns usage messages

Specified by:

getMessagesN in interface ReportAPI

Parameters:

MaximumNumber - of messages. If more available returns the first.

Returns:

an array containing usage messages.

getMessages

public NotificationMessage[] getMessages()

Description copied from interface: ReportAPI

Returns all usage messages

Specified by:

getMessages in interface ReportAPI

Returns:

an array containing all usage messages.

destroy

public void destroy()
             throws ResourceNotDestroyedFault

WSResource lifetime destroy

Specified by:

destroy in interface WSResourceLifetime

Throws:

ResourceNotDestroyedFault

destroyLocal

public void destroyLocal(String resourceId)
                  throws GridFailureException

Throws:

GridFailureException