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 org.apache.commons.logging.Log;
048: import org.apache.commons.logging.LogFactory;
049: import org.obe.client.api.repository.ParticipantMetaData;
050: import org.obe.client.api.repository.RepositoryException;
051: import org.obe.engine.repository.AbstractRepository;
052: import org.obe.spi.model.ProcessInstance;
053: import org.obe.spi.service.SecurityRealm;
054: import org.obe.spi.service.ServiceManager;
055:
056: import java.security.Principal;
057: import java.security.acl.Group;
058: import java.util.ArrayList;
059: import java.util.List;
060:
061: /**
062: * Basic implementation of the SecurityRealm interface.
063: *
064: * @author Adrian Price
065: */
066: public class BasicSecurityRealm extends AbstractRepository implements
067: SecurityRealm {
068:
069: private static final Log _logger = LogFactory
070: .getLog(BasicSecurityRealm.class);
071:
072: public BasicSecurityRealm(ServiceManager svcMgr) {
073: super (svcMgr, ParticipantMetaData.class);
074: }
075:
076: protected Log getLogger() {
077: return _logger;
078: }
079:
080: public Principal findPrincipal(String name)
081: throws RepositoryException {
082: return (Principal) findInstance(name, true);
083: }
084:
085: public Principal[] findPrincipals(int mask)
086: throws RepositoryException {
087: Entry[] entries = super .findEntries();
088: List principals = new ArrayList(entries.length);
089: boolean findUsers = (mask & USER) != 0;
090: boolean findGroups = (mask & GROUP) != 0;
091: for (int i = 0; i < entries.length; i++) {
092: Entry entry = entries[i];
093: Principal principal = (Principal) entry.getInstance(null);
094: if (principal instanceof Group) {
095: if (findGroups)
096: principals.add(principal);
097: } else if (findUsers) {
098: principals.add(principal);
099: }
100: }
101: return (Principal[]) principals
102: .toArray(new Principal[principals.size()]);
103: }
104:
105: public Principal[] resolveParticipants(String name,
106: ProcessInstance processInstance) throws RepositoryException {
107:
108: // Make sure the principal actually exists in the realm.
109: Principal participant = findPrincipal(name);
110:
111: return new Principal[] { participant };
112: }
113:
114: public String getServiceName() {
115: return SERVICE_NAME;
116: }
117: }
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