SessionPresenter.java
/*
** Module : SessionPresenter.java
** Abstract : SessionPresenter is a controller that implements business methods to manage sessions.
**
** Copyright (c) 2017, Golden Code Development Corporation.
**
** -#- -I- --Date-- ----------------Description----------------------
** 001 SBI 20170601 Created initial version.
*/
/*
** This program is free software: you can redistribute it and/or modify
** it under the terms of the GNU Affero General Public License as
** published by the Free Software Foundation, either version 3 of the
** License, or (at your option) any later version.
**
** 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 Affero General Public License for more details.
**
** You may find a copy of the GNU Affero GPL version 3 at the following
** location: https://www.gnu.org/licenses/agpl-3.0.en.html
**
** Additional terms under GNU Affero GPL version 3 section 7:
**
** Under Section 7 of the GNU Affero GPL version 3, the following additional
** terms apply to the works covered under the License. These additional terms
** are non-permissive additional terms allowed under Section 7 of the GNU
** Affero GPL version 3 and may not be removed by you.
**
** 0. Attribution Requirement.
**
** You must preserve all legal notices or author attributions in the covered
** work or Appropriate Legal Notices displayed by works containing the covered
** work. You may not remove from the covered work any author or developer
** credit already included within the covered work.
**
** 1. No License To Use Trademarks.
**
** This license does not grant any license or rights to use the trademarks
** Golden Code, FWD, any Golden Code or FWD logo, or any other trademarks
** of Golden Code Development Corporation. You are not authorized to use the
** name Golden Code, FWD, or the names of any author or contributor, for
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**
** 2. No Misrepresentation of Affiliation.
**
** You may not represent yourself as Golden Code Development Corporation or FWD.
**
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**
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** versions of the covered work must be marked in a reasonable way to make it
** clear that the modified work is not originating from Golden Code Development
** Corporation or FWD. All modified versions must contain the notices of
** attribution required in this license.
*/
package com.goldencode.p2j.admin.client.application.home.console.sessions;
import java.util.logging.Level;
import javax.inject.Named;
import com.goldencode.p2j.admin.SessionInfo;
import com.goldencode.p2j.admin.client.*;
import com.goldencode.p2j.admin.client.application.home.*;
import com.goldencode.p2j.admin.shared.AdminServiceAsync;
import com.google.gwt.regexp.shared.RegExp;
import com.google.gwt.user.client.rpc.AsyncCallback;
import com.google.gwt.user.client.ui.HasEnabled;
import com.google.inject.*;
import com.google.web.bindery.event.shared.*;
import com.gwtplatform.mvp.client.*;
import com.gwtplatform.mvp.client.annotations.*;
import com.gwtplatform.mvp.client.presenter.slots.*;
import com.gwtplatform.mvp.client.proxy.*;
import com.gwtplatform.mvp.shared.proxy.PlaceRequest;
/**
* SessionPresenter is a controller that implements business methods to manage sessions.
*/
public class SessionPresenter extends BasePresenter<SessionPresenter.MyView, SessionPresenter.MyProxy>
implements SessionUIHandler
{
/** The attachment point for modal dialogs on this view*/
public static final NestedSlot MODAL_CONTENT = new NestedSlot();
/** Administration server interface */
private final AdminServiceAsync adminService;
/**
* This view interface that must be implemented by the concrete view according to GWTP
* framework. Defines the exposed business methods.
*/
public interface MyView
extends View, HasUiHandlers<SessionUIHandler>
{
/**
* Sets the session table model.
*
* @param sessions
* The array of sessions
* @param filter
* The filter criteria
*/
void setSessions(SessionInfo[] sessions, RegExp filter);
/**
* Gets a reference to the Filter View.
*
* @return The Filter View
*/
FilterSessionsView getFilterView();
/**
* Gets a reference to the Terminate Session Alert.
*
* @return The Terminate Session Alert
*/
TerminateSessionAlert getTerminateSessionAlert();
/**
* Tests if the tested session is selected.
*
* @param session
* The tested session
*
* @return True iff the tested session is selected, otherwise false.
*/
boolean isSessionSelected(SessionInfo session);
}
/**
* Defines the proxy place for GWTP framework.
*/
@ProxyStandard
@NameToken(NameTokens.SESSIONS)
public interface MyProxy
extends ProxyPlace<SessionPresenter>
{}
/**
* Defines Session presenter.
*
* @param eventBus
* The event bus
* @param view
* The associated view
* @param proxy
* The proxy place
* @param placeManager
* The place manager
* @param adminService
* The administration service
*/
@Inject
SessionPresenter(EventBus eventBus,
MyView view,
MyProxy proxy,
PlaceManager placeManager,
AdminServiceAsync adminService)
{
super(eventBus, view, proxy, HomePresenter.SLOT_CONTENT, placeManager);
this.adminService = adminService;
getView().setUiHandlers(this);
}
/**
* Retrieves the current session list and updates the session table model according to
* the given filter criteria.
*
* @param filter
* The filter criteria
*/
private void filterSessionList(RegExp filter)
{
this.adminService.getSessionList(new AsyncCallback<SessionInfo[]>()
{
@Override
public void onSuccess(SessionInfo[] result)
{
getView().setSessions(result, filter);
}
@Override
public void onFailure(Throwable caught)
{
//TODO notify an admin user
logger.log(Level.INFO, "Can't get network sessions.", caught);
}
});
}
/**
* Executes an asynchronous action to retrieve the current session list from the server and
* to update the current sessions table view.
*/
@Override
public void updateSessionList()
{
filterSessionList(filterExp);
}
/**
* Loads the data before the associated view will be displayed.
*
* @param request
* The current request
*/
@Override
public void prepareFromRequest(PlaceRequest request)
{
super.prepareFromRequest(request);
setFilter(request.getParameter(FILTER, ""));
updateSessionList();
}
/**
* Sets the current search string used as a filter to display the target results.
*
* @param value
* The new search string used as a filter.
*/
@Override
public void setDataSelectionFilter(String value)
{
setFilter(value);
filterSessionList(filterExp);
}
/**
* Executes an asynchronous action to terminate the given session and on its completion
* to update the current sessions table view.
*/
@Override
public void terminateSession(final SessionInfo session)
{
if (!getView().isSessionSelected(session))
{
updateSessionList();
return;
}
this.adminService.terminateSession(session.id, new AsyncCallback<Void>()
{
@Override
public void onSuccess(Void result)
{
updateSessionList();
}
@Override
public void onFailure(Throwable caught)
{
updateSessionList();
//TODO notify an admin user
logger.log(Level.INFO, "Can't terminate network session " + session.id, caught);
}
});
}
}