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OSGi™ Service Platform Release 2 |
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The Permission Admin service allows operators to manage the permissions of bundles. There is at most one Permission Admin service present in the Framework.
Access to the Permission Admin service is protected by corresponding ServicePermission. In addition the AdminPermission is required to actually set permissions.
Bundle permissions are managed using a permission table. A bundle's location serves as the key into this permission table. The value of a table entry is the set of permissions (of type PermissionInfo) granted to the bundle with the given location. A bundle may have an entry in the permission table prior to being installed in the Framework.
The permissions specified in setDefaultPermissions are used as the default permissions which are granted to all bundles that do not have an entry in the permission table.
Any changes to a bundle's permissions in the permission table will take effect no later than when bundle's java.security.ProtectionDomain is involved in a permission check, and will be made persistent.
Only permission classes on the system classpath or from an exported package are considered during a permission check. Additionally, only permission classes that are subclasses of java.security.Permission and define a 2-argument constructor that takes a name string and an actions string can be used.
Permissions implicitly granted by the Framework (for example, a bundle's permission to access its persistent storage area) cannot be changed, and are not reflected in the permissions returned by getPermissions and getDefaultPermissions.
Method Summary | |
PermissionInfo[] |
getDefaultPermissions()
Gets the default permissions. |
java.lang.String[] |
getLocations()
Returns the bundle locations that have permissions assigned to them, that is, bundle locations for which an entry exists in the permission table. |
PermissionInfo[] |
getPermissions(java.lang.String location)
Gets the permissions assigned to the bundle with the specified location. |
void |
setDefaultPermissions(PermissionInfo[] permissions)
Sets the default permissions. |
void |
setPermissions(java.lang.String location,
PermissionInfo[] perms)
Assigns the specified permissions to the bundle with the specified location. |
Method Detail |
public PermissionInfo[] getPermissions(java.lang.String location)
location
- The location of the bundle whose permissions are to
be returned.
public void setPermissions(java.lang.String location, PermissionInfo[] perms)
location
- The location of the bundle that will be assigned the
permissions.perms
- The permissions to be assigned, or null
if the specified location is to be removed from the permission table.
java.lang.SecurityException
- if the caller does not have the
AdminPermission.public java.lang.String[] getLocations()
public PermissionInfo[] getDefaultPermissions()
These are the permissions granted to any bundle that does not have permissions assigned to its location.
public void setDefaultPermissions(PermissionInfo[] permissions)
These are the permissions granted to any bundle that does not have permissions assigned to its location.
permissions
- The default permissions.
java.lang.SecurityException
- if the caller does not have the
AdminPermission.
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OSGi™ Service Platform Release 2 |
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