org.osgi.service.application

Class ApplicationAdminPermission

java.lang.Object

java.security.Permission

org.osgi.service.application.ApplicationAdminPermission

All Implemented Interfaces:

Serializable, Guard

public class ApplicationAdminPermission
extends Permission

This class implements permissions for manipulating applications and their instances.

ApplicationAdminPermission can be targeted to applications that matches the specified filter.

ApplicationAdminPermission may be granted for different actions: lifecycle, schedule and lock. The permission schedule implies the permission lifecycle.

Version:

$Revision: 6860 $

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static String	LIFECYCLE_ACTION Allows the lifecycle management of the target applications.
static String	LOCK_ACTION Allows setting/unsetting the locking state of the target applications.
static String	SCHEDULE_ACTION Allows scheduling of the target applications.

Constructor Summary

Constructors

Constructor and Description
ApplicationAdminPermission(ApplicationDescriptor application, String actions) This contructor should be used when creating ApplicationAdminPermission instance for checkPermission call.
ApplicationAdminPermission(String filter, String actions) Constructs an ApplicationAdminPermission.

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object with)
String	getActions() Returns the actions of this permission.
int	hashCode()
boolean	implies(Permission otherPermission) Checks if the specified permission is implied by this permission.
ApplicationAdminPermission	setCurrentApplicationId(String applicationId) This method can be used in the ProtectionDomain implementation in the implies method to insert the application ID of the current application into the permission being checked.

Methods inherited from class java.security.Permission

checkGuard, getName, newPermissionCollection, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

LIFECYCLE_ACTION

public static final String LIFECYCLE_ACTION

Allows the lifecycle management of the target applications.

See Also:

Constant Field Values

SCHEDULE_ACTION

public static final String SCHEDULE_ACTION

Allows scheduling of the target applications. The permission to schedule an application implies that the scheduler can also manage the lifecycle of that application i.e. schedule implies lifecycle

See Also:

Constant Field Values

LOCK_ACTION

public static final String LOCK_ACTION

Allows setting/unsetting the locking state of the target applications.

See Also:

Constant Field Values

Constructor Detail

ApplicationAdminPermission

public ApplicationAdminPermission(String filter,
                                  String actions)
                           throws org.osgi.framework.InvalidSyntaxException

Constructs an ApplicationAdminPermission. The filter specifies the target application. The filter is an LDAP-style filter, the recognized properties are signer and pid. The pattern specified in the signer is matched with the Distinguished Name chain used to sign the application. Wildcards in a DN are not matched according to the filter string rules, but according to the rules defined for a DN chain. The attribute pid is matched with the PID of the application according to the filter string rules.

If the filter is null then it matches "*". If actions is "*" then it identifies all the possible actions.

Parameters:

filter - filter to identify application. The value null is equivalent to "*" and it indicates "all application".

actions - comma-separated list of the desired actions granted on the applications or "*" means all the actions. It must not be null. The order of the actions in the list is not significant.

Throws:

org.osgi.framework.InvalidSyntaxException - is thrown if the specified filter is not syntactically correct.

NullPointerException - is thrown if the actions parameter is null

See Also:

ApplicationDescriptor, AdminPermission

ApplicationAdminPermission

public ApplicationAdminPermission(ApplicationDescriptor application,
                                  String actions)

This contructor should be used when creating ApplicationAdminPermission instance for checkPermission call.

Parameters:

application - the tareget of the operation, it must not be null

actions - the required operation. it must not be null

Throws:

NullPointerException - if any of the arguments is null.

Method Detail

setCurrentApplicationId

public ApplicationAdminPermission setCurrentApplicationId(String applicationId)

This method can be used in the ProtectionDomain implementation in the implies method to insert the application ID of the current application into the permission being checked. This enables the evaluation of the <<SELF>> pseudo targets.

Parameters:

applicationId - the ID of the current application.

Returns:

the permission updated with the ID of the current application

implies

public boolean implies(Permission otherPermission)

Checks if the specified permission is implied by this permission. The method returns true under the following conditions:

• This permission was created by specifying a filter (see ApplicationAdminPermission(String, String))
• The implied otherPermission was created for a particular ApplicationDescriptor (see ApplicationAdminPermission(ApplicationDescriptor, String))
• The filter of this permission mathes the ApplicationDescriptor specified in the otherPermission. If the filter in this permission is the <<SELF>> pseudo target, then the currentApplicationId set in the otherPermission is compared to the application Id of the target ApplicationDescriptor.
• The list of permitted actions in this permission contains all actions required in the otherPermission

Otherwise the method returns false.

Specified by:

implies in class Permission

Parameters:

otherPermission - the implied permission

Returns:

true if this permission implies the otherPermission, false otherwise.

equals

public boolean equals(Object with)

Specified by:

equals in class Permission

hashCode

public int hashCode()

Specified by:

hashCode in class Permission

getActions

public String getActions()

Returns the actions of this permission.

Specified by:

getActions in class Permission

Returns:

the actions specified when this permission was created