/**
* OLAT - Online Learning and Training<br>
* http://www.olat.org
* <p>
* Licensed under the Apache License, Version 2.0 (the "License"); <br>
* you may not use this file except in compliance with the License.<br>
* You may obtain a copy of the License at
* <p>
* http://www.apache.org/licenses/LICENSE-2.0
* <p>
* Unless required by applicable law or agreed to in writing,<br>
* software distributed under the License is distributed on an "AS IS" BASIS, <br>
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. <br>
* See the License for the specific language governing permissions and <br>
* limitations under the License.
* <p>
* Copyright (c) since 2004 at Multimedia- & E-Learning Services (MELS),<br>
* University of Zurich, Switzerland.
* <p>
*/
package org.olat.group.ui;
import java.util.Iterator;
import java.util.List;
import org.olat.basesecurity.Manager;
import org.olat.basesecurity.ManagerFactory;
import org.olat.core.gui.components.table.DefaultTableDataModel;
import org.olat.core.gui.components.table.TableDataModel;
import org.olat.core.gui.translator.Translator;
import org.olat.core.id.Identity;
import org.olat.core.logging.Tracing;
import org.olat.core.util.Formatter;
import org.olat.core.util.filter.FilterFactory;
import org.olat.group.BusinessGroup;
import org.olat.group.BusinessGroupManager;
import org.olat.group.BusinessGroupManagerImpl;
/**
* Description:<BR>
* Extended business gropu table model with max size and current number of
* participants as additional rows
* <P>
* Initial Date: Sep 9, 2004
*
* @author gnaegi
*/
public class BusinessGroupTableModelWithMaxSize extends DefaultTableDataModel implements TableDataModel {
private static final int COLUMN_COUNT = 7;
private List members;
private Translator trans;
private Identity identity;
private boolean cancelEnrollEnabled;
private Manager securityManager;
private BusinessGroupManager businessGroupManager;
/**
* @param groups List of business groups
* @param members List containing the number of participants for each group.
* The index of the list corresponds with the index of the group list
* @param trans
*/
public BusinessGroupTableModelWithMaxSize(List groups, List members, Translator trans, Identity identity, boolean cancelEnrollEnabled) {
super(groups);
this.members = members;
this.trans = trans;
this.identity = identity;
securityManager = ManagerFactory.getManager();
businessGroupManager = BusinessGroupManagerImpl.getInstance();
this.cancelEnrollEnabled = cancelEnrollEnabled;
}
/**
* @see org.olat.core.gui.components.table.TableDataModel#getColumnCount()
*/
public int getColumnCount() {
return COLUMN_COUNT;
}
/**
* @see org.olat.core.gui.components.table.TableDataModel#getValueAt(int, int)
*/
public Object getValueAt(int row, int col) {
BusinessGroup businessGroup = (BusinessGroup) objects.get(row);
Integer numbParts = (Integer) members.get(row);
Integer max = businessGroup.getMaxParticipants();
switch (col) {
case 0:
return businessGroup.getName();
case 1:
String description = businessGroup.getDescription();
description = FilterFactory.getHtmlTagsFilter().filter(description);
description = Formatter.truncate(description, 256);
return description;
case 2:
// Belegt/Plätze
if (max == null) {
// no limit => return only members
return numbParts;
}
// return format 2/10
StringBuilder buf = new StringBuilder();
buf.append(numbParts);
buf.append(trans.translate("grouplist.table.partipiciant.delimiter"));
buf.append(businessGroup.getMaxParticipants());
if(numbParts>businessGroup.getMaxParticipants()) {
Tracing.logInfo("Group overflow detected for the group: " + businessGroup + ", participants: " + numbParts + " maxParticipamts: " + businessGroup.getMaxParticipants(), BusinessGroupTableModelWithMaxSize.class);
}
return buf.toString();
case 3:
// Waiting-list
if (businessGroup.getWaitingListEnabled().booleanValue()) {
// Waitinglist is enabled => show current size
int intValue = securityManager.countIdentitiesOfSecurityGroup(businessGroup.getWaitingGroup());
return new Integer(intValue);
}
return trans.translate("grouplist.table.noWaitingList");
case 4:
// Status
if (securityManager.isIdentityInSecurityGroup(this.identity,businessGroup.getPartipiciantGroup())) {
return trans.translate("grouplist.table.state.onPartipiciantList");
} else if (securityManager.isIdentityInSecurityGroup(this.identity,businessGroup.getWaitingGroup())) {
int pos = businessGroupManager.getPositionInWaitingListFor(identity,businessGroup);
String[] onWaitingListArgs = new String[] { Integer.toString(pos) };
return trans.translate("grouplist.table.state.onWaitingList",onWaitingListArgs);
} else if (max != null && !businessGroup.getWaitingListEnabled().booleanValue() && (numbParts.intValue() >= max.intValue()) ) {
return trans.translate("grouplist.table.state.enroll.full");
} else if (max != null && businessGroup.getWaitingListEnabled().booleanValue() && (numbParts.intValue() >= max.intValue()) ) {
return trans.translate("grouplist.table.state.WaitingList");
}
return trans.translate("grouplist.table.state.notEnrolled");
case 5:
// Action enroll
if (isEnrolledInAnyGroup(identity)) {
// Allready enrolled => does not show action-link 'enroll'
return Boolean.FALSE;
}
if (max != null && !businessGroup.getWaitingListEnabled().booleanValue() && (numbParts.intValue() >= max.intValue()) ) {
// group is full => => does not show action-link 'enroll'
return Boolean.FALSE;
}
return Boolean.TRUE;
case 6:
// Action cancel enrollment
if (isEnrolledIn(businessGroup, identity)) {
// check if user is on waiting-list
if (securityManager.isIdentityInSecurityGroup(this.identity,businessGroup.getWaitingGroup())) {
// user is on waitinglist => show allways action cancelEnrollment for waitinglist
return Boolean.TRUE;
}
// user is not on waitinglist => show action cancelEnrollment only if enabled
if (cancelEnrollEnabled) {
return Boolean.TRUE;
}
}
return Boolean.FALSE;
default:
return "ERROR";
}
}
/**
* @param owned
*/
public void setEntries(List owned) {
this.objects = owned;
}
/**
* @param row
* @return the business group at the given row
*/
public BusinessGroup getBusinessGroupAt(int row) {
return (BusinessGroup) objects.get(row);
}
/**
* Check if an identity is in certain security-group.
* @param businessGroup
* @param identity
* @return true: Found identity in PartipiciantGroup or WaitingGroup.
*/
private boolean isEnrolledIn(BusinessGroup businessGroup, Identity identity) {
if (securityManager.isIdentityInSecurityGroup(identity,businessGroup.getPartipiciantGroup())
|| securityManager.isIdentityInSecurityGroup(identity,businessGroup.getWaitingGroup()) ) {
return true;
}
return false;
}
/**
* Check if an identity is in any security-group.
* @param identity
* @return true: Found identity in any security-group of this table model.
*/ private boolean isEnrolledInAnyGroup(Identity identity) {
BusinessGroup businessGroup;
// loop over all business-groups
for (Iterator iter = objects.iterator(); iter.hasNext() ;) {
businessGroup = (BusinessGroup)iter.next();
if (isEnrolledIn(businessGroup, identity) ) {
return true;
}
}
return false;
}
}