/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.felix.useradmin.impl.role;
import org.osgi.service.useradmin.Group;
import org.osgi.service.useradmin.Role;
/**
* Provides an adapter for all {@link Group}s, allowing its changes to be
* externally observed.
*
* @author <a href="mailto:dev@felix.apache.org">Felix Project Team</a>
*/
public class ObservableGroup extends ObservableUser implements Group {
private static final long serialVersionUID = 4012536225870565500L;
private static final String BASIC_MEMBER = "basicMember";
private static final String REQUIRED_MEMBER = "requiredMember";
/**
* Creates a new {@link ObservableGroup} instance.
*
* @param group the group-role to observe for changes, cannot be <code>null</code>.
* @throws IllegalArgumentException in case the given group-role was <code>null</code>.
*/
public ObservableGroup(Group group) {
super(group);
}
public boolean addMember(Role role) {
boolean result = ((Group) m_delegate).addMember(role);
if (result) {
// Notify our (optional) listener...
entryAdded(BASIC_MEMBER, role);
}
return result;
}
public boolean addRequiredMember(Role role) {
boolean result = ((Group) m_delegate).addRequiredMember(role);
if (result) {
// Notify our (optional) listener...
entryAdded(REQUIRED_MEMBER, role);
}
return result;
}
public boolean removeMember(Role role) {
// Take a snapshot of the current set of members...
Role[] members = getRequiredMembers();
boolean result = ((Group) m_delegate).removeMember(role);
if (result) {
// Notify our (optional) listener...
String key = BASIC_MEMBER;
for (int i = 0; (members != null) && (i < members.length); i++) {
if (members[i].equals(role)) {
key = REQUIRED_MEMBER;
break;
}
}
entryRemoved(key);
}
return result;
}
public Role[] getMembers() {
Role[] members = ((Group) m_delegate).getMembers();
if (members == null) {
return null;
}
Role[] result = new Role[members.length];
for (int i = 0; i < members.length; i++) {
result[i] = ObservableRole.wrap(members[i]);
}
return result;
}
public Role[] getRequiredMembers() {
Role[] requiredMembers = ((Group) m_delegate).getRequiredMembers();
if (requiredMembers == null) {
return null;
}
Role[] result = new Role[requiredMembers.length];
for (int i = 0; i < requiredMembers.length; i++) {
result[i] = ObservableRole.wrap(requiredMembers[i]);
}
return requiredMembers;
}
public String toString() {
return m_delegate.toString();
}
}