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package javax.security.jacc;
import java.security.*;
import javax.security.jacc.PolicyContextException;
/**
* The methods of this interface are used by containers to
* create policy statements in a Policy provider.
* An object that implements the PolicyConfiguration interface provides the
* policy statement configuration interface for a corresponding policy context
* within the corresponding Policy provider.
* <P>
* The life cycle of a policy context
* is defined by three states; "open", "inService", and "deleted". A policy
* context is in one of these three states.
* <P>
* A policy context in the "open" state is in the process of being
* configured, and may be operated on by any of the methods of the
* PolicyConfiguration interface. A policy context in the "open" state
* must not be assimilated at <code>Policy.refresh</code> into the policy
* statements used by the Policy provider in performing its access decisions.
* In order for the policy statements of a policy context to be assimilated
* by the associated provider, the policy context must be in the
* "inService" state. A policy context in the "open" state is transitioned to
* the "inService" state by calling the commit method.
* <P>
* A policy context in the "inService" state is available for assimilation
* into the policy statements being used to perform access decisions by the
* associated Policy provider. Providers assimilate policy contexts containing
* policy statements when the refresh method of the provider is called. When
* a provider's refresh method is called, it must assimilate only those policy
* contexts whose state is "inService" and it must ensure that the policy
* statements put into service for each policy context are only those defined
* in the context at the time of the call to refresh. A policy context in the
* "inService" state is not available for additional configuration and may be
* returned to the "open" state by calling the getPolicyConfiguration method
* of the PolicyConfigurationFactory.
* <P>
* A policy context in the "deleted" state is neither available for
* configuration, nor is it available for assimilation into the Provider. A
* policy context whose state is "deleted" may be reclaimed for subsequent
* processing by calling the getPolicyConfiguration method of the associated
* PolicyConfigurationFactory. A "deleted" policy context
* is transitioned to the "open" state when it it returned as a result of
* a call to getPolicyConfiguration.
* <P>
* The following table captures the correspondence between the policy context
* life cycle and the methods of the PolicyConfiguration interface.
* The rightmost 3 columns of the table correspond to the
* PolicyConfiguration state identified at the head of the column.
* The values in the cells of these columns indicate
* the next state resulting from a call to the method
* identifed in the leftmost column of the corresponding row, or that
* calling the method is unsupported in the state
* represented by the column (in which case the state will remain unchanged).
*
* <br><br>
* <table border="1" width="90%" nosave="" align="center">
* <caption>PolicyConfiguration State Table</caption>
* <tr>
* <th valign="middle" rowspan="2" colspan="1" align="center">
* <font size="-2">Method</font></th>
* <th valign="top" rowspan="1" colspan="3" align="center">
* <font size="-2">Current State to Next State</font></th>
* </tr>
* <tr>
* <th width="25%" align="center"><font size="-2">deleted</font></th>
* <th width="12%" align="center"><font size="-2">open</font></th>
* <th width="25%" align="center"><font size="-2">inService</font></th>
* </tr>
* <tr>
* <td width="28%"><font size="-2">addToExcludedPolicy</font></td>
* <td width="25%" align="center">
* <font size="-2">Unsupported Operation</font></td>
* <td width="12%" align="center">
* <font size="-2">open</font></td>
* <td width="25%" align="center">
* <font size="-2">Unsupported Operation</font></td>
* </tr>
* <tr>
* <td width="28%"><font size="-2">addToRole</font></td>
* <td width="25%" align="center">
* <font size="-2">Unsupported Operation</font></td>
* <td width="12%" align="center">
* <font size="-2">open</font></td>
* <td width="25%" align="center">
* <font size="-2">Unsupported Operation</font></td>
* </tr>
* <tr>
* <td width="28%"><font size="-2">addToUncheckedPolicy</font></td>
* <td width="25%" align="center">
* <font size="-2">Unsupported Operation</font></td>
* <td width="12%" align="center">
* <font size="-2">open</font></td>
* <td width="25%" align="center">
* <font size="-2">Unsupported Operation</font></td>
* </tr>
* <tr>
* <td width="28%"><font size="-2">commit</font></td>
* <td width="25%" align="center">
* <font size="-2">Unsupported Operation</font></td>
* <td width="12%" align="center">
* <font size="-2">inService</font></td>
* <td width="25%" align="center">
* <font size="-2">inService</font></td>
* </tr>
* <tr>
* <td width="28%"><font size="-2">delete</font></td>
* <td width="25%" align="center">
* <font size="-2">deleted</font></td>
* <td width="12%" align="center">
* <font size="-2">deleted</font></td>
* <td width="25%" align="center">
* <font size="-2">deleted</font></td>
* </tr>
* <tr>
* <td width="28%"><font size="-2">getContextID</font></td>
* <td width="25%" align="center">
* <font size="-2">deleted</font></td>
* <td width="12%" align="center">
* <font size="-2">open</font></td>
* <td width="25%" align="center">
* <font size="-2">inService</font></td>
* </tr>
* <tr>
* <td width="28%"><font size="-2">inService</font></td>
* <td width="25%" align="center">
* <font size="-2">deleted</font></td>
* <td width="12%" align="center">
* <font size="-2">open</font></td>
* <td width="25%" align="center">
* <font size="-2">inService</font></td>
* </tr>
* <tr>
* <td width="28%"><font size="-2">linkConfiguration</font></td>
* <td width="25%" align="center">
* <font size="-2">Unsupported Operation</font></td>
* <td width="12%" align="center">
* <font size="-2">open</font></td>
* <td width="25%" align="center">
* <font size="-2">Unsupported Operation</font></td>
* </tr>
* <tr>
* <td width="28%"><font size="-2">removeExcludedPolicy</font></td>
* <td width="25%" align="center">
* <font size="-2">Unsupported Operation</font></td>
* <td width="12%" align="center"><font size="-2">
* open</font></td>
* <td width="25%" align="center">
* <font size="-2">Unsupported Operation</font></td>
* </tr>
* <tr>
* <td width="28%"><font size="-2">removeRole</font></td>
* <td width="25%" align="center">
* <font size="-2">Unsupported Operation</font></td>
* <td width="12%" align="center">
* <font size="-2">open</font></td>
* <td width="25%" align="center">
* <font size="-2">Unsupported Operation</font></td>
* </tr>
* <tr>
* <td width="28%"><font size="-2">removeUncheckedPolicy</font></td>
* <td width="25%" align="center">
* <font size="-2">Unsupported Operation</font></td>
* <td width="12%" align="center">
* <font size="-2">open</font></td>
* <td width="25%" align="center">
* <font size="-2">Unsupported Operation</font></td>
* </tr>
* </table>
* <br><P>
* For a provider implementation to be compatible with multi-threaded
* environments, it may be necessary to synchronize the refresh method of
* the provider with the methods of its PolicyConfiguration interface and
* with the getPolicyConfiguration and inService methods of its
* PolicyConfigurationFactory.
*
* @see java.security.Permission
* @see java.security.PermissionCollection
* @see javax.security.jacc.PolicyContextException
* @see javax.security.jacc.PolicyConfigurationFactory
*
* @author Ron Monzillo
* @author Gary Ellison
*/
public interface PolicyConfiguration {
/**
* This method returns this object's policy context identifier.
* @return this object's policy context identifier.
*
* @throws java.lang.SecurityException
* if called by an AccessControlContext that has not been
* granted the "setPolicy" SecurityPermission.
*
* @throws javax.security.jacc.PolicyContextException
* if the implementation throws a checked exception that has not been
* accounted for by the getContextID method signature. The exception thrown
* by the implementation class will be encapsulated (during construction)
* in the thrown PolicyContextException.
*/
public String getContextID()
throws javax.security.jacc.PolicyContextException;
/**
* Used to add permissions to a named role in this PolicyConfiguration.
* If the named Role does not exist in the PolicyConfiguration, it is
* created as a result of the call to this function.
* <P>
* It is the job of the Policy provider to ensure that all the permissions
* added to a role are granted to principals "mapped to the role".
* <P>
* @param roleName the name of the Role to which the permissions are
* to be added.
* <P>
* @param permissions the collection of permissions to be added
* to the role. The collection may be either a homogenous or
* heterogenous collection.
*
* @throws java.lang.SecurityException
* if called by an AccessControlContext that has not been
* granted the "setPolicy" SecurityPermission.
*
* @throws java.lang.UnsupportedOperationException
* if the state of the policy context whose interface is this
* PolicyConfiguration Object is "deleted" or "inService" when this
* method is called.
*
* @throws javax.security.jacc.PolicyContextException
* if the implementation throws a checked exception that has not been
* accounted for by the addToRole method signature. The exception thrown
* by the implementation class will be encapsulated (during construction)
* in the thrown PolicyContextException.
*/
public void addToRole(String roleName, PermissionCollection permissions)
throws javax.security.jacc.PolicyContextException;
/**
* Used to add a single permission to a named role in this
* PolicyConfiguration.
* If the named Role does not exist in the PolicyConfiguration, it is
* created as a result of the call to this function.
* <P>
* It is the job of the Policy provider to ensure that all the permissions
* added to a role are granted to principals "mapped to the role".
* <P>
* @param roleName the name of the Role to which the permission is
* to be added.
* <P>
* @param permission the permission to be added
* to the role.
*
* @throws java.lang.SecurityException
* if called by an AccessControlContext that has not been
* granted the "setPolicy" SecurityPermission.
*
* @throws java.lang.UnsupportedOperationException
* if the state of the policy context whose interface is this
* PolicyConfiguration Object is "deleted" or "inService" when this
* method is called.
*
* @throws javax.security.jacc.PolicyContextException
* if the implementation throws a checked exception that has not been
* accounted for by the addToRole method signature. The exception thrown
* by the implementation class will be encapsulated (during construction)
* in the thrown PolicyContextException.
*/
public void addToRole(String roleName, Permission permission)
throws javax.security.jacc.PolicyContextException;
/**
* Used to add unchecked policy statements to this PolicyConfiguration.
* <P>
* @param permissions the collection of permissions to be added
* as unchecked policy statements. The collection may be either
* a homogenous or heterogenous collection.
*
* @throws java.lang.SecurityException
* if called by an AccessControlContext that has not been
* granted the "setPolicy" SecurityPermission.
*
* @throws java.lang.UnsupportedOperationException
* if the state of the policy context whose interface is this
* PolicyConfiguration Object is "deleted" or "inService" when this
* method is called.
*
* @throws javax.security.jacc.PolicyContextException
* if the implementation throws a checked exception that has not been
* accounted for by the addToUncheckedPolicy method signature.
* The exception thrown
* by the implementation class will be encapsulated (during construction)
* in the thrown PolicyContextException.
*/
public void addToUncheckedPolicy(PermissionCollection permissions)
throws javax.security.jacc.PolicyContextException;
/**
* Used to add a single unchecked policy statement to this
* PolicyConfiguration.
* <P>
* @param permission the permission to be added
* to the unchecked policy statements.
*
* @throws java.lang.SecurityException
* if called by an AccessControlContext that has not been
* granted the "setPolicy" SecurityPermission.
*
* @throws java.lang.UnsupportedOperationException
* if the state of the policy context whose interface is this
* PolicyConfiguration Object is "deleted" or "inService" when this
* method is called.
*
* @throws javax.security.jacc.PolicyContextException
* if the implementation throws a checked exception that has not been
* accounted for by the addToUncheckedPolicy method signature.
* The exception thrown
* by the implementation class will be encapsulated (during construction)
* in the thrown PolicyContextException.
*/
public void addToUncheckedPolicy(Permission permission)
throws javax.security.jacc.PolicyContextException;
/**
* Used to add excluded policy statements to this PolicyConfiguration.
* <P>
* @param permissions the collection of permissions to be added
* to the excluded policy statements. The collection may be either
* a homogenous or heterogenous collection.
*
* @throws java.lang.SecurityException
* if called by an AccessControlContext that has not been
* granted the "setPolicy" SecurityPermission.
*
* @throws java.lang.UnsupportedOperationException
* if the state of the policy context whose interface is this
* PolicyConfiguration Object is "deleted" or "inService" when this
* method is called.
*
* @throws javax.security.jacc.PolicyContextException
* if the implementation throws a checked exception that has not been
* accounted for by the addToExcludedPolicy method signature.
* The exception thrown
* by the implementation class will be encapsulated (during construction)
* in the thrown PolicyContextException.
*/
public void addToExcludedPolicy(PermissionCollection permissions)
throws javax.security.jacc.PolicyContextException;
/**
* Used to add a single excluded policy statement to this
* PolicyConfiguration.
* <P>
* @param permission the permission to be added
* to the excluded policy statements.
*
* @throws java.lang.SecurityException
* if called by an AccessControlContext that has not been
* granted the "setPolicy" SecurityPermission.
*
* @throws java.lang.UnsupportedOperationException
* if the state of the policy context whose interface is this
* PolicyConfiguration Object is "deleted" or "inService" when this
* method is called.
*
* @throws javax.security.jacc.PolicyContextException
* if the implementation throws a checked exception that has not been
* accounted for by the addToExcludedPolicy method signature.
* The exception thrown
* by the implementation class will be encapsulated (during construction)
* in the thrown PolicyContextException.
*/
public void addToExcludedPolicy(Permission permission)
throws javax.security.jacc.PolicyContextException;
/**
* Used to remove a role and all its permissions from this
* PolicyConfiguration.
* <P>
* @param roleName the name of the Role to remove from this
* PolicyConfiguration.
*
* @throws java.lang.SecurityException
* if called by an AccessControlContext that has not been
* granted the "setPolicy" SecurityPermission.
*
* @throws java.lang.UnsupportedOperationException
* if the state of the policy context whose interface is this
* PolicyConfiguration Object is "deleted" or "inService" when this
* method is called.
*
* @throws javax.security.jacc.PolicyContextException
* if the implementation throws a checked exception that has not been
* accounted for by the removeRole method signature. The exception thrown
* by the implementation class will be encapsulated (during construction)
* in the thrown PolicyContextException.
*/
public void removeRole(String roleName)
throws javax.security.jacc.PolicyContextException;
/**
* Used to remove any unchecked policy statements from this
* PolicyConfiguration.
*
* @throws java.lang.SecurityException
* if called by an AccessControlContext that has not been
* granted the "setPolicy" SecurityPermission.
*
* @throws java.lang.UnsupportedOperationException
* if the state of the policy context whose interface is this
* PolicyConfiguration Object is "deleted" or "inService" when this
* method is called.
*
* @throws javax.security.jacc.PolicyContextException
* if the implementation throws a checked exception that has not been
* accounted for by the removeUncheckedPolicy method signature.
* The exception thrown
* by the implementation class will be encapsulated (during construction)
* in the thrown PolicyContextException.
*/
public void removeUncheckedPolicy()
throws javax.security.jacc.PolicyContextException;
/**
* Used to remove any excluded policy statements from this
* PolicyConfiguration.
*
* @throws java.lang.SecurityException
* if called by an AccessControlContext that has not been
* granted the "setPolicy" SecurityPermission.
*
* @throws java.lang.UnsupportedOperationException
* if the state of the policy context whose interface is this
* PolicyConfiguration Object is "deleted" or "inService" when this
* method is called.
*
* @throws javax.security.jacc.PolicyContextException
* if the implementation throws a checked exception that has not been
* accounted for by the removeExcludedPolicy method signature.
* The exception thrown
* by the implementation class will be encapsulated (during construction)
* in the thrown PolicyContextException.
*/
public void removeExcludedPolicy()
throws javax.security.jacc.PolicyContextException;
/**
* Creates a relationship between this configuration and another
* such that they share the same principal-to-role mappings.
* PolicyConfigurations are linked to apply a common principal-to-role
* mapping to multiple seperately manageable PolicyConfigurations,
* as is required when an application is composed of multiple
* modules.
* <P>
* Note that the policy statements which comprise a role, or comprise
* the excluded or unchecked policy collections in a PolicyConfiguration
* are unaffected by the configuration being linked to another.
* <P>
* @param link a reference to a different PolicyConfiguration than this
* PolicyConfiguration.
* <P>
* The relationship formed by this method is symetric, transitive
* and idempotent. If the argument PolicyConfiguration does not have a
* different Policy context identifier than this PolicyConfiguration
* no relationship is formed, and an exception, as described below, is
* thrown.
*
* @throws java.lang.SecurityException
* if called by an AccessControlContext that has not been
* granted the "setPolicy" SecurityPermission.
*
* @throws java.lang.UnsupportedOperationException
* if the state of the policy context whose interface is this
* PolicyConfiguration Object is "deleted" or "inService" when this
* method is called.
*
* @throws java.lang.IllegalArgumentException
* if called with an argument PolicyConfiguration whose Policy context
* is equivalent to that of this PolicyConfiguration.
*
* @throws javax.security.jacc.PolicyContextException
* if the implementation throws a checked exception that has not been
* accounted for by the linkConfiguration method signature. The exception
* thrown
* by the implementation class will be encapsulated (during construction)
* in the thrown PolicyContextException.
*/
public void linkConfiguration(PolicyConfiguration link)
throws javax.security.jacc.PolicyContextException;
/**
* Causes all policy statements to be deleted from this PolicyConfiguration
* and sets its internal state such that calling any method, other than
* delete, getContextID, or inService on the PolicyConfiguration will
* be rejected and cause an UnsupportedOperationException to be thrown.
* <P>
* This operation has no affect on any linked PolicyConfigurations
* other than removing any links involving the deleted PolicyConfiguration.
*
* @throws java.lang.SecurityException
* if called by an AccessControlContext that has not been
* granted the "setPolicy" SecurityPermission.
*
* @throws javax.security.jacc.PolicyContextException
* if the implementation throws a checked exception that has not been
* accounted for by the delete method signature. The exception thrown
* by the implementation class will be encapsulated (during construction)
* in the thrown PolicyContextException.
*/
public void delete()
throws javax.security.jacc.PolicyContextException;
/**
* This method is used to set to "inService" the state of the policy context
* whose interface is this PolicyConfiguration Object. Only those policy
* contexts whose state is "inService" will be included in the policy
* contexts processed by the Policy.refresh method. A policy context whose
* state is "inService" may be returned to the "open" state by calling the
* getPolicyConfiguration method of the PolicyConfiguration factory
* with the policy context identifier of the policy context.
* <P>
* When the state of a policy context is "inService", calling any method
* other than commit, delete, getContextID, or inService on its
* PolicyConfiguration Object will cause an UnsupportedOperationException
* to be thrown.
*
* @throws java.lang.SecurityException
* if called by an AccessControlContext that has not been
* granted the "setPolicy" SecurityPermission.
*
* @throws java.lang.UnsupportedOperationException
* if the state of the policy context whose interface is this
* PolicyConfiguration Object is "deleted" when this
* method is called.
*
* @throws javax.security.jacc.PolicyContextException
* if the implementation throws a checked exception that has not been
* accounted for by the commit method signature. The exception thrown
* by the implementation class will be encapsulated (during construction)
* in the thrown PolicyContextException.
*/
public void commit()
throws javax.security.jacc.PolicyContextException;
/**
* This method is used to determine if the policy context whose interface is
* this PolicyConfiguration Object is in the "inService" state.
*
* @return true if the state of the associated policy context is
* "inService"; false otherwise.
*
* @throws java.lang.SecurityException
* if called by an AccessControlContext that has not been
* granted the "setPolicy" SecurityPermission.
*
* @throws javax.security.jacc.PolicyContextException
* if the implementation throws a checked exception that has not been
* accounted for by the inService method signature. The exception thrown
* by the implementation class will be encapsulated (during construction)
* in the thrown PolicyContextException.
*/
public boolean inService()
throws javax.security.jacc.PolicyContextException;
}
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