Class PrivateCredentialPermission
- java.lang.Object
-
- java.security.Permission
-
- javax.security.auth.PrivateCredentialPermission
- All Implemented Interfaces:
-
Serializable
,Guard
public final class PrivateCredentialPermission extends Permission
This class is used to protect access to private Credentials belonging to a particular Subject
. The Subject
is represented by a Set of Principals.
The target name of this Permission
specifies a Credential class name, and a Set of Principals. The only valid value for this Permission's actions is, "read". The target name must abide by the following syntax:
CredentialClass {PrincipalClass "PrincipalName"}*For example, the following permission grants access to the com.sun.PrivateCredential owned by Subjects which have a com.sun.Principal with the name, "duke". Note that although this example, as well as all the examples below, do not contain Codebase, SignedBy, or Principal information in the grant statement (for simplicity reasons), actual policy configurations should specify that information when appropriate.
grant { permission javax.security.auth.PrivateCredentialPermission "com.sun.PrivateCredential com.sun.Principal \"duke\"", "read"; };If CredentialClass is "*", then access is granted to all private Credentials belonging to the specified
Subject
. If "PrincipalName" is "*", then access is granted to the specified Credential owned by any Subject
that has the specified Principal
(the actual PrincipalName doesn't matter). For example, the following grants access to the a.b.Credential owned by any Subject
that has an a.b.Principal. grant { permission javax.security.auth.PrivateCredentialPermission "a.b.Credential a.b.Principal "*"", "read"; };If both the PrincipalClass and "PrincipalName" are "*", then access is granted to the specified Credential owned by any
Subject
. In addition, the PrincipalClass/PrincipalName pairing may be repeated:
grant { permission javax.security.auth.PrivateCredentialPermission "a.b.Credential a.b.Principal "duke" c.d.Principal "dukette"", "read"; };The above grants access to the private Credential, "a.b.Credential", belonging to a
Subject
with at least two associated Principals: "a.b.Principal" with the name, "duke", and "c.d.Principal", with the name, "dukette".- Since:
- 1.4
- See Also:
- Serialized Form
Constructor Summary
Constructor | Description |
---|---|
PrivateCredentialPermission(String name,
String actions) | Creates a new |
Method Summary
Modifier and Type | Method | Description |
---|---|---|
boolean | equals(Object obj) | Checks two |
String | getActions() | Returns the "canonical string representation" of the actions. |
String | getCredentialClass() | Returns the Class name of the Credential associated with this |
String[][] | getPrincipals() | Returns the |
int | hashCode() | Returns the hash code value for this object. |
boolean | implies(Permission p) | Checks if this |
PermissionCollection | newPermissionCollection() | Return a homogeneous collection of PrivateCredentialPermissions in a |
Methods declared in class java.security.Permission
checkGuard, getName, toString
Methods declared in class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
Constructor Detail
PrivateCredentialPermission
public PrivateCredentialPermission(String name, String actions)
Creates a new PrivateCredentialPermission
with the specified name
. The name
specifies both a Credential class and a Principal
Set.
- Parameters:
-
name
- the name specifying the Credential class andPrincipal
Set. -
actions
- the actions specifying that the Credential can be read. - Throws:
-
IllegalArgumentException
- ifname
does not conform to the correct syntax or ifactions
is not "read".
Method Detail
getCredentialClass
public String getCredentialClass()
Returns the Class name of the Credential associated with this PrivateCredentialPermission
.
- Returns:
- the Class name of the Credential associated with this
PrivateCredentialPermission
.
getPrincipals
public String[][] getPrincipals()
Returns the Principal
classes and names associated with this PrivateCredentialPermission
. The information is returned as a two-dimensional array (array[x][y]). The 'x' value corresponds to the number of Principal
class and name pairs. When (y==0), it corresponds to the Principal
class value, and when (y==1), it corresponds to the Principal
name value. For example, array[0][0] corresponds to the class name of the first Principal
in the array. array[0][1] corresponds to the Principal
name of the first Principal
in the array.
- Returns:
- the
Principal
class and names associated with thisPrivateCredentialPermission
.
implies
public boolean implies(Permission p)
Checks if this PrivateCredentialPermission
implies the specified Permission
.
This method returns true if:
-
p
is an instanceof PrivateCredentialPermission and - the target name for
p
is implied by this object's target name. For example:[* P1 "duke"] implies [a.b.Credential P1 "duke"]. [C1 P1 "duke"] implies [C1 P1 "duke" P2 "dukette"]. [C1 P2 "dukette"] implies [C1 P1 "duke" P2 "dukette"].
- Specified by:
-
implies
in classPermission
- Parameters:
-
p
- thePermission
to check against. - Returns:
- true if this
PrivateCredentialPermission
implies the specifiedPermission
, false if not.
equals
public boolean equals(Object obj)
Checks two PrivateCredentialPermission
objects for equality. Checks that obj
is a PrivateCredentialPermission
, and has the same credential class as this object, as well as the same Principals as this object. The order of the Principals in the respective Permission's target names is not relevant.
- Specified by:
-
equals
in classPermission
- Parameters:
-
obj
- the object we are testing for equality with this object. - Returns:
- true if obj is a
PrivateCredentialPermission
, has the same credential class as this object, and has the same Principals as this object. - See Also:
-
Object.hashCode()
,HashMap
hashCode
public int hashCode()
Returns the hash code value for this object.
- Specified by:
-
hashCode
in classPermission
- Returns:
- a hash code value for this object.
- See Also:
-
Object.equals(java.lang.Object)
,System.identityHashCode(java.lang.Object)
getActions
public String getActions()
Returns the "canonical string representation" of the actions. This method always returns the String, "read".
- Specified by:
-
getActions
in classPermission
- Returns:
- the actions (always returns "read").
newPermissionCollection
public PermissionCollection newPermissionCollection()
Return a homogeneous collection of PrivateCredentialPermissions in a PermissionCollection
. No such PermissionCollection
is defined, so this method always returns null
.
- Overrides:
-
newPermissionCollection
in classPermission
- Returns:
- null in all cases.