001: /*--
002:
003: Copyright (C) 2002-2005 Adrian Price.
004: All rights reserved.
005:
006: Redistribution and use in source and binary forms, with or without
007: modification, are permitted provided that the following conditions
008: are met:
009:
010: 1. Redistributions of source code must retain the above copyright
011: notice, this list of conditions, and the following disclaimer.
012:
013: 2. Redistributions in binary form must reproduce the above copyright
014: notice, this list of conditions, and the disclaimer that follows
015: these conditions in the documentation and/or other materials
016: provided with the distribution.
017:
018: 3. The names "OBE" and "Open Business Engine" must not be used to
019: endorse or promote products derived from this software without prior
020: written permission. For written permission, please contact
021: adrianprice@sourceforge.net.
022:
023: 4. Products derived from this software may not be called "OBE" or
024: "Open Business Engine", nor may "OBE" or "Open Business Engine"
025: appear in their name, without prior written permission from
026: Adrian Price (adrianprice@users.sourceforge.net).
027:
028: THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
029: WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
030: OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
031: DISCLAIMED. IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT,
032: INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
033: (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
034: SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
035: HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
036: STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
037: IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
038: POSSIBILITY OF SUCH DAMAGE.
039:
040: For more information on OBE, please see
041: <http://obe.sourceforge.net/>.
042:
043: */
044:
045: package org.obe.runtime.participant;
046:
047: import java.security.Principal;
048: import java.security.acl.Group;
049: import java.util.*;
050:
051: /**
052: * BasicGroup in the BasicSecurityRealm.
053: *
054: * @author Adrian Price
055: * @castor:class id="name"
056: * table="BasicSecurityRealm"
057: * extends="org.obe.runtime.participant.BasicPrincipal"
058: */
059: public class BasicGroup extends BasicPrincipal implements Group {
060: private static final long serialVersionUID = 258465813169774852L;
061: protected Set _members = new HashSet();
062:
063: public BasicGroup() {
064: }
065:
066: public BasicGroup(String name) {
067: super (name);
068: }
069:
070: public boolean addMember(Principal user) {
071: return _members.add(user);
072: }
073:
074: public boolean isMember(Principal member) {
075: // Quick check to see whether they're a direct member.
076: if (_members.contains(member))
077: return true;
078: // Recursive membership check.
079: for (Iterator iter = _members.iterator(); iter.hasNext();) {
080: Principal p = (Principal) iter.next();
081: if (p instanceof Group && ((Group) p).isMember(member))
082: return true;
083: }
084: return false;
085: }
086:
087: public Enumeration members() {
088: return Collections.enumeration(_members);
089: }
090:
091: public boolean removeMember(Principal user) {
092: return _members.remove(user);
093: }
094:
095: public void clear() {
096: _members.clear();
097: }
098:
099: /**
100: * @castor:field collection="hashSet"
101: * type="org.obe.runtime.participant.BasicPrincipal"
102: * set-method="setMembers"
103: * @castor:field-xml name="member"
104: * node="element"
105: */
106: public Set getMembers() {
107: return _members;
108: }
109:
110: public void setMembers(Set members) {
111: _members = members;
112: }
113:
114: public String toString() {
115: return "BasicGroup[name=" + _name + ", fullName=" + _fullName
116: + ", email=" + _email + ", members=" + _members + ']';
117: }
118: }
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