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/* IdentityScope.java --- IdentityScope Class
Copyright (C) 1999, 2003, Free Software Foundation, Inc.
This file is part of GNU Classpath.
GNU Classpath is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU Classpath is distributed in the hope that it will be useful, but
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
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02110-1301 USA.
Linking this library statically or dynamically with other modules is
making a combined work based on this library. Thus, the terms and
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permission to link this library with independent modules to produce an
executable, regardless of the license terms of these independent
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independent module, the terms and conditions of the license of that
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package java.security;
import java.util.Enumeration;
/**
* <code>IdentityScope</code> represents a scope of an identity.
* <code>IdentityScope</code> is also an {@link Identity} and can have a name
* and scope along with the other qualitites identities possess.
*
* <p>An <code>IdentityScope</code> contains other {@link Identity} objects.
* All {@link Identity} objects are manipulated in the scope the same way. The
* scope is supposed to apply different scope to different type of
* Identities.</p>
*
* <p>No identity within the same scope can have the same public key.</p>
*
* @author Mark Benvenuto
* @see Identity
* @see Signer
* @see Principal
* @see Key
* @deprecated Use java.security.KeyStore, the java.security.cert package, and
* java.security.Principal.
*/
public abstract class IdentityScope extends Identity
{
private static final long serialVersionUID = -2337346281189773310L;
private static IdentityScope systemScope;
/** Constructor for serialization purposes. */
protected IdentityScope()
{
super();
}
/**
* Constructs a new instance of <code>IdentityScope</code> with the
* specified name and no scope.
*
* @param name
* the name to use.
*/
public IdentityScope(String name)
{
super(name);
}
/**
* Constructs a new instance of <code>IdentityScope</code> with the
* specified name and {@link IdentityScope}.
*
* @param name
* the name to use.
* @param scope
* the scope to use.
* @throws KeyManagementException
* if the identity scope is already present.
*/
public IdentityScope(String name, IdentityScope scope)
throws KeyManagementException
{
super(name, scope);
}
/**
* Returns the system's Scope.
*
* @return the system's Scope.
*/
public static IdentityScope getSystemScope()
{
if (systemScope == null)
{
//Load it
//systemScope;
}
return systemScope;
}
/**
* Sets the scope of the system.
*
* @param scope
* the new system scope.
* @throws SecurityException
* if a {@link SecurityManager} is installed which disallows this
* operation.
*/
protected static void setSystemScope(IdentityScope scope)
{
SecurityManager sm = System.getSecurityManager();
if (sm != null)
sm.checkSecurityAccess("setSystemScope");
systemScope = scope;
}
/**
* Returns the number of entries within this <code>IdentityScope</code>.
*
* @return the number of entries within this <code>IdentityScope</code>.
*/
public abstract int size();
/**
* Returns the specified {@link Identity}, by name, within this scope.
*
* @param name
* name of {@link Identity} to get.
* @return an {@link Identity} representing the name or <code>null</code> if
* it cannot be found.
*/
public abstract Identity getIdentity(String name);
/**
* Returns the specified {@link Identity}, by {@link Principal}, within this
* scope.
*
* @param principal
* the {@link Principal} to use.
* @return an identity representing the {@link Principal} or <code>null</code>
* if it cannot be found.
*/
public Identity getIdentity(Principal principal)
{
return getIdentity(principal.getName());
}
/**
* Returns the specified {@link Identity}, by public key, within this scope.
*
* @param key
* the {@link PublicKey} to use.
* @return an identity representing the public key or <code>null</code> if
* it cannot be found.
*/
public abstract Identity getIdentity(PublicKey key);
/**
* Adds an identity to his scope.
*
* @param identity
* the {@link Identity} to add.
* @throws KeyManagementException
* if it is an invalid identity, an identity with the same key
* exists, or if another error occurs.
*/
public abstract void addIdentity(Identity identity)
throws KeyManagementException;
/**
* Removes an identity in this scope.
*
* @param identity
* the {@link Identity} to remove.
* @throws KeyManagementException
* if it is a missing identity, or if another error occurs.
*/
public abstract void removeIdentity(Identity identity)
throws KeyManagementException;
/**
* Returns an {@link Enumeration} of identities in this scope.
*
* @return an {@link Enumeration} of the identities in this scope.
*/
public abstract Enumeration identities();
/**
* Returns a string representing this instance. It includes the name, the
* scope name, and number of identities.
*
* @return a string representation of this instance.
*/
public String toString()
{
return (super.getName() + " " + super.getScope().getName() + " " + size());
}
}