/*
* RHQ Management Platform
* Copyright (C) 2005-2011 Red Hat, Inc.
* All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation version 2 of the License.
*
* This program 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 for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
package org.rhq.coregui.client.components.table;
import java.util.HashSet;
import java.util.Set;
import com.smartgwt.client.widgets.grid.ListGridRecord;
import org.rhq.core.domain.authz.Permission;
import org.rhq.coregui.client.PermissionsLoadedListener;
import org.rhq.coregui.client.PermissionsLoader;
/**
* This class allows for TableAction (ie. Button) enablement based on row selection and global perm authorization.
*
* For Resource Perm authorization see {@link ResourceAuthorizedTableAction}.
*
* @author Jay Shaughnessy
*/
public abstract class AuthorizedTableAction extends AbstractTableAction {
Table<?> table;
HashSet<Permission> globalPermissions = new HashSet<Permission>();
Boolean isGlobalAuthorized;
protected AuthorizedTableAction(Table<?> table, Permission... permissions) {
this(table, TableActionEnablement.ALWAYS, permissions);
}
protected AuthorizedTableAction(Table<?> table, TableActionEnablement enablement, Permission... permissions) {
super(enablement);
this.table = table;
for (Permission p : permissions) {
switch (p.getTarget()) {
case GLOBAL:
globalPermissions.add(p);
break;
default:
throw new IllegalArgumentException("Does not support non-global permissions");
}
}
if (globalPermissions.isEmpty()) {
isGlobalAuthorized = true;
}
}
@Override
public boolean isEnabled(ListGridRecord[] selection) {
if (!super.isEnabled(selection)) {
return false;
}
if (null == isGlobalAuthorized) {
new PermissionsLoader().loadExplicitGlobalPermissions(new PermissionsLoadedListener() {
public void onPermissionsLoaded(Set<Permission> grantedPermissions) {
if (grantedPermissions == null) {
// failed to load the global perms from the Server - no need to display an error message,
// since the ErrorHandler already did.
return;
}
for (Permission requiredPermission : globalPermissions) {
if (!grantedPermissions.contains(requiredPermission)) {
return;
}
}
isGlobalAuthorized = true;
table.refreshTableInfo();
}
});
return false;
}
return isGlobalAuthorized;
}
}