org.osgi.service.remoteserviceadmin

Class EndpointPermission

java.lang.Object

java.security.Permission

org.osgi.service.remoteserviceadmin.EndpointPermission

All Implemented Interfaces:

Serializable, Guard

public final class EndpointPermission
extends Permission

A bundle's authority to export, import or read an Endpoint.

• The export action allows a bundle to export a service as an Endpoint.
• The import action allows a bundle to import a service from an Endpoint.
• The read action allows a bundle to read references to an Endpoint.

Permission to read an Endpoint is required in order to detect events regarding an Endpoint. Untrusted bundles should not be able to detect the presence of certain Endpoints unless they have the appropriate EndpointPermission to read the specific service.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static String	EXPORT The action string export.
static String	IMPORT The action string import.
static String	READ The action string read.

Constructor Summary

Constructors

Constructor and Description
EndpointPermission(EndpointDescription endpoint, String localFrameworkUUID, String actions) Creates a new requested EndpointPermission object to be used by code that must perform checkPermission.
EndpointPermission(String filterString, String actions) Create a new EndpointPermission with the specified filter.

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object obj) Determines the equality of two EndpointPermission objects.
String	getActions() Returns the canonical string representation of the actions.
int	hashCode() Returns the hash code value for this object.
boolean	implies(Permission p) Determines if a EndpointPermission object "implies" the specified permission.
PermissionCollection	newPermissionCollection() Returns a new PermissionCollection object for storing EndpointPermission objects.

Methods inherited from class java.security.Permission

checkGuard, getName, toString

Methods inherited from class java.lang.Object

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

Field Detail

READ

public static final String READ

The action string read.

See Also:

Constant Field Values

IMPORT

public static final String IMPORT

The action string import. The import action implies the read action.

See Also:

Constant Field Values

EXPORT

public static final String EXPORT

The action string export. The export action implies the read action.

See Also:

Constant Field Values

Constructor Detail

EndpointPermission

public EndpointPermission(String filterString,
                          String actions)

Create a new EndpointPermission with the specified filter.

The filter will be evaluated against the endpoint properties of a requested EndpointPermission.

There are three possible actions: read, import and export. The read action allows the owner of this permission to see the presence of distributed services. The import action allows the owner of this permission to import an endpoint. The export action allows the owner of this permission to export a service.

Parameters:

filterString - The filter string or "*" to match all endpoints.

actions - The actions read, import, or export.

Throws:

IllegalArgumentException - If the filter has an invalid syntax or the actions are not valid.

EndpointPermission

public EndpointPermission(EndpointDescription endpoint,
                          String localFrameworkUUID,
                          String actions)

Creates a new requested EndpointPermission object to be used by code that must perform checkPermission. EndpointPermission objects created with this constructor cannot be added to an EndpointPermission permission collection.

Parameters:

endpoint - The requested endpoint.

localFrameworkUUID - The UUID of the local framework. This is used to support matching the endpoint.framework.uuid endpoint property to the <<LOCAL>> value in the filter expression.

actions - The actions read, import, or export.

Throws:

IllegalArgumentException - If the endpoint is null or the actions are not valid.

Method Detail

implies

public boolean implies(Permission p)

Determines if a EndpointPermission object "implies" the specified permission.

Specified by:

implies in class Permission

Parameters:

p - The target permission to check.

Returns:

true if the specified permission is implied by this object; false otherwise.

getActions

public String getActions()

Returns the canonical string representation of the actions. Always returns present actions in the following canonical order: read, import, export.

Specified by:

getActions in class Permission

Returns:

The canonical string representation of the actions.

newPermissionCollection

public PermissionCollection newPermissionCollection()

Returns a new PermissionCollection object for storing EndpointPermission objects.

Overrides:

newPermissionCollection in class Permission

Returns:

A new PermissionCollection object suitable for storing EndpointPermission objects.

equals

public boolean equals(Object obj)

Determines the equality of two EndpointPermission objects. Checks that specified object has the same name, actions and endpoint as this EndpointPermission.

Specified by:

equals in class Permission

Parameters:

obj - The object to test for equality.

Returns:

true If obj is a EndpointPermission, and has the same name, actions and endpoint as this EndpointPermission object; false otherwise.

hashCode

public int hashCode()

Returns the hash code value for this object.

Specified by:

hashCode in class Permission

Returns:

Hash code value for this object.