com.tangosol.net
Class ClusterPermission

java.lang.Object
  java.security.Permission
      com.tangosol.net.ClusterPermission

All Implemented Interfaces:

java.io.Serializable, java.security.Guard

public final class ClusterPermission
extends java.security.Permission
implements java.io.Serializable

This class represents access to a clustered resource such as a Service or NamedCache. A ClusterPermission consists of a target name and a set of actions valid for that target.

Target name is a string containing a list of one or more comma-separated target attributes. The valid target attributes are:

• "service=<service-name>"
• "service=<service-prefix*>"
• "cache=<cache-name>"
• "cache=<cache-prefix*>"
• "*"

If a target string does not contain the "service" attribute, it is equivalent to the "service=*" attribute value. If a target string does not contain the "cache" attribute, it is equivalent to the "cache=*" attribute value or is meant to indicate a service that is not a CacheService (e.g. InvocationService). A target name string consisting of a single "*" indicates all clustered resources.

The actions to be granted are passed to the constructor in a string containing a list of one or more comma-separated keywords. The possible keywords are: "create", "destroy", "join", "manage", "all". An action string "all" indicates a combination of all valid actions.
Note: the actions string is converted to lowercase before processing.

Since:

Coherence 2.5

Author:

gg 2004.05.28

Field Summary

static int	ALL All actions.
static int	CREATE Create action.
static int	DESTROY Create action.
static int	JOIN Join action.
static int	NONE No actions.

Constructor Summary

ClusterPermission(java.lang.String sTarget, java.lang.String sAction)
Construct a ClusterPermission object.

Method Summary

boolean	equals(java.lang.Object obj) Checks two Permission objects for equality.
static java.lang.String	formatAction(int nAction) Format the action string.
java.lang.String	getActions() Return the actions as a String in a canonical form.
java.lang.String	getServiceName() Return the service name for this permission object or null if the permission applies to any service.
int	hashCode() Return the hash code value for this ClusterPermission object.
boolean	implies(java.security.Permission permission) Check if the specified permission's actions are "implied by" this object's actions.
static void	main(java.lang.String[] asArg) Unit test allows to compare the specified permissions.
protected void	parseAction(java.lang.String sAction) Parse the action string and set the action flag.
protected void	parseTarget(java.lang.String sTarget) Parse the target string.

Methods inherited from class java.security.Permission

checkGuard, getName, newPermissionCollection, toString

Field Detail

CREATE

public static final int CREATE

Create action.

See Also:

Constant Field Values

DESTROY

public static final int DESTROY

Create action.

See Also:

Constant Field Values

JOIN

public static final int JOIN

Join action.

See Also:

Constant Field Values

ALL

public static final int ALL

All actions.

See Also:

Constant Field Values

NONE

public static final int NONE

No actions.

See Also:

Constant Field Values

Constructor Detail

ClusterPermission

public ClusterPermission(java.lang.String sTarget,
                         java.lang.String sAction)

Construct a ClusterPermission object.

Parameters:

sTarget - the clustered resource name; must be specified

sAction - the action(s) name; must be specified

Method Detail

getActions

public java.lang.String getActions()

Return the actions as a String in a canonical form.

Specified by:

getActions in class java.security.Permission

Returns:

the actions of this Permission

implies

public boolean implies(java.security.Permission permission)

Check if the specified permission's actions are "implied by" this object's actions.

There is a slight difference in semantics of the wild card ("*") in "this" and passed-in Permission's target. The specified permission for cache-less services will not contain any "cache=" attribute in the target string, while cache services will always specify a "cache=" attribute.

Specified by:

implies in class java.security.Permission

Parameters:

permission - the permission to check against

Returns:

true if the specified permission is implied by this object, false if not

equals

public boolean equals(java.lang.Object obj)

Checks two Permission objects for equality.

Specified by:

equals in class java.security.Permission

Parameters:

obj - the object we are testing for equality with this object

Returns:

true if both Permission objects are equivalent

hashCode

public int hashCode()

Return the hash code value for this ClusterPermission object.

Specified by:

hashCode in class java.security.Permission

Returns:

a hash code value for this object

getServiceName

public java.lang.String getServiceName()

Return the service name for this permission object or null if the permission applies to any service.

Returns:

the service name for this permission object

parseTarget

protected void parseTarget(java.lang.String sTarget)

Parse the target string.

Parameters:

sTarget - the target string

parseAction

protected void parseAction(java.lang.String sAction)

Parse the action string and set the action flag.

Parameters:

sAction - the action string

formatAction

public static java.lang.String formatAction(int nAction)

Format the action string.

Parameters:

nAction - the action mask

Returns:

the action string

main

public static void main(java.lang.String[] asArg)

Unit test allows to compare the specified permissions.

   java com.tangosol.net.ClusterPermission