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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
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*/
package com.sun.security.auth;
import java.security.Principal;
import java.util.Objects;
/**
* This class implements the {@code Principal} interface
* and represents a user's Unix group identification number (GID).
*
* <p> Principals such as this {@code UnixNumericGroupPrincipal}
* may be associated with a particular {@code Subject}
* to augment that {@code Subject} with an additional
* identity. Refer to the {@code Subject} class for more information
* on how to achieve this. Authorization decisions can then be based upon
* the Principals associated with a {@code Subject}.
*
* @see java.security.Principal
* @see javax.security.auth.Subject
*/
public class UnixNumericGroupPrincipal implements
Principal,
java.io.Serializable {
private static final long serialVersionUID = 3941535899328403223L;
/**
* @serial
*/
private String name;
/**
* @serial
*/
private boolean primaryGroup;
/**
* Create a {@code UnixNumericGroupPrincipal} using a
* {@code String} representation of the user's
* group identification number (GID).
*
* @param name the user's group identification number (GID)
* for this user.
*
* @param primaryGroup true if the specified GID represents the
* primary group to which this user belongs.
*
* @exception NullPointerException if the {@code name}
* is {@code null}.
*/
public UnixNumericGroupPrincipal(String name, boolean primaryGroup) {
if (name == null) {
java.text.MessageFormat form = new java.text.MessageFormat
(sun.security.util.ResourcesMgr.getAuthResourceString
("invalid.null.input.value"));
Object[] source = {"name"};
throw new NullPointerException(form.format(source));
}
this.name = name;
this.primaryGroup = primaryGroup;
}
/**
* Create a {@code UnixNumericGroupPrincipal} using a
* long representation of the user's group identification number (GID).
*
* @param name the user's group identification number (GID) for this user
* represented as a long.
*
* @param primaryGroup true if the specified GID represents the
* primary group to which this user belongs.
*
*/
public UnixNumericGroupPrincipal(long name, boolean primaryGroup) {
this.name = Long.toString(name);
this.primaryGroup = primaryGroup;
}
/**
* Return the user's group identification number (GID) for this
* {@code UnixNumericGroupPrincipal}.
*
* @return the user's group identification number (GID) for this
* {@code UnixNumericGroupPrincipal}
*/
public String getName() {
return name;
}
/**
* Return the user's group identification number (GID) for this
* {@code UnixNumericGroupPrincipal} as a long.
*
* @return the user's group identification number (GID) for this
* {@code UnixNumericGroupPrincipal} as a long.
*/
public long longValue() {
return Long.parseLong(name);
}
/**
* Return whether this group identification number (GID) represents
* the primary group to which this user belongs.
*
* @return true if this group identification number (GID) represents
* the primary group to which this user belongs,
* or false otherwise.
*/
public boolean isPrimaryGroup() {
return primaryGroup;
}
/**
* Return a string representation of this
* {@code UnixNumericGroupPrincipal}.
*
* @return a string representation of this
* {@code UnixNumericGroupPrincipal}.
*/
public String toString() {
if (primaryGroup) {
java.text.MessageFormat form = new java.text.MessageFormat
(sun.security.util.ResourcesMgr.getAuthResourceString
("UnixNumericGroupPrincipal.Primary.Group.name"));
Object[] source = {name};
return form.format(source);
} else {
java.text.MessageFormat form = new java.text.MessageFormat
(sun.security.util.ResourcesMgr.getAuthResourceString
("UnixNumericGroupPrincipal.Supplementary.Group.name"));
Object[] source = {name};
return form.format(source);
}
}
/**
* Compares the specified Object with this
* {@code UnixNumericGroupPrincipal}
* for equality. Returns true if the given object is also a
* {@code UnixNumericGroupPrincipal} and the two
* UnixNumericGroupPrincipals
* have the same group identification number (GID).
*
* @param o Object to be compared for equality with this
* {@code UnixNumericGroupPrincipal}.
*
* @return true if the specified Object is equal to this
* {@code UnixNumericGroupPrincipal}.
*/
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