AppserverPresenter.java
/*
** Module : AppserverPresenter.java
** Abstract : AppserverPresenter is a controller that implements business methods to manage appservers.
**
** Copyright (c) 2024-2025, Golden Code Development Corporation.
**
** -#- -I- --Date-- ----------------Description----------------------
** 001 GBB 20240930 Created initial version.
** 002 GBB 20250403 Adding terminateSessions.
*/
/*
** 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
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** name Golden Code, FWD, or the names of any author or contributor, for
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**
** 2. No Misrepresentation of Affiliation.
**
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**
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** Golden Code Development Corporation, FWD, or any author or contributor to
** the covered work, without written authorization.
**
** 3. No Misrepresentation of Source or Origin.
**
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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.appservers;
import com.goldencode.p2j.admin.*;
import com.goldencode.p2j.admin.client.*;
import com.goldencode.p2j.admin.client.application.*;
import com.goldencode.p2j.admin.client.application.home.*;
import com.goldencode.p2j.admin.shared.*;
import com.google.gwt.regexp.shared.*;
import com.google.gwt.user.client.rpc.*;
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.*;
import java.util.logging.*;
/**
* AppserverPresenter is a controller that implements business methods to manage appservers.
*/
public class AppserverPresenter
extends BasePresenter<AppserverPresenter.MyView, AppserverPresenter.MyProxy>
implements AppserverUIHandler
{
/** The attachment point for modal dialogs on this view*/
public static final NestedSlot MODAL_CONTENT = new NestedSlot();
/** Administration server interface */
private final AdminServiceAsync adminService;
/** The logger */
private final Logger logger = Logger.getLogger(getClass().getSimpleName());
/**
* 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<AppserverUIHandler>,
PrintingContext
{
/**
* Sets the appserver model.
*
* @param appservers
* The array of appserver descriptors
* @param filter
* The filter criteria
*/
void setAppservers(AppserverInfo[] appservers, RegExp filter);
/**
* Sets the agents table data.
*
* @param appserver
* The appserver name
* @param agentInfos
* The array of agent descriptors
* @param filterExp
* The filter criteria
*/
void setAgents(String appserver, AppserverInfo.AgentInfo[] agentInfos, RegExp filterExp);
/**
* Shows a warning message.
*
* @param msg
* The warning message
*/
void showWarningMsg(String msg);
}
/**
* Defines the proxy place for GWTP framework.
*/
@ProxyStandard
@NameToken(NameTokens.APPSERVERS)
public interface MyProxy
extends ProxyPlace<AppserverPresenter>
{}
/**
* 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
AppserverPresenter(EventBus eventBus,
MyView view,
MyProxy proxy,
PlaceManager placeManager,
AdminServiceAsync adminService)
{
super(eventBus, view, proxy, HomePresenter.SLOT_CONTENT, placeManager);
this.adminService = adminService;
getView().setUiHandlers(this);
}
/**
* Executes an asynchronous action to retrieve the current appserver list from the server and
* to update the current sessions table view.
*/
@Override
public void updateAppserverList()
{
this.adminService.getAppserverList(new AsyncCallback<AppserverInfo[]>()
{
@Override
public void onSuccess(AppserverInfo[] result)
{
getView().setAppservers(result, filterExp);
}
@Override
public void onFailure(Throwable caught)
{
String msg = "Can't retrieve the list of appservers.";
getView().showWarningMsg(msg);
logger.log(Level.WARNING, msg, caught);
}
});
}
/**
* Executes an asynchronous action to retrieve the current agents list from the server and
* to update the current agents table view.
*
* @param appserver
* The appserver name
*/
@Override
public void refreshAgents(String appserver)
{
this.adminService.getAppserverAgents(appserver, new AsyncCallback<AppserverInfo.AgentInfo[]>()
{
@Override
public void onSuccess(AppserverInfo.AgentInfo[] result)
{
getView().setAgents(appserver, result, filterExp);
}
@Override
public void onFailure(Throwable caught)
{
String msg = "Can't retrieve agents info for appserver " + appserver;
getView().showWarningMsg(msg);
logger.log(Level.WARNING, msg, caught);
}
});
}
/**
* Executes an asynchronous action to restart all agents and on its completion
* to update the current agents table view.
*
* @param appserver
* The appserver name
*/
@Override
public void restartAgents(String appserver)
{
this.adminService.restartAgents(appserver, new AsyncCallback<AppserverInfo.AgentInfo[]>()
{
@Override
public void onSuccess(AppserverInfo.AgentInfo[] result)
{
getView().setAgents(appserver, result, filterExp);
}
@Override
public void onFailure(Throwable caught)
{
String msg = "Can't restart agents for appserver " + appserver;
getView().showWarningMsg(msg);
logger.log(Level.WARNING, msg, caught);
}
});
}
/**
* Executes an asynchronous action to trim the unused agents and on its completion
* to update the current agents table view.
*
* @param appserver
* The appserver name
*/
@Override
public void trimAgents(String appserver)
{
this.adminService.trimAgents(appserver, new AsyncCallback<AppserverInfo.AgentInfo[]>()
{
@Override
public void onSuccess(AppserverInfo.AgentInfo[] result)
{
getView().setAgents(appserver, result, filterExp);
}
@Override
public void onFailure(Throwable caught)
{
String msg = "Can't trim agents for appserver " + appserver;
getView().showWarningMsg(msg);
logger.log(Level.WARNING, msg, caught);
}
});
}
/**
* Executes an asynchronous action to start a new agent and on its completion
* to update the current agents table view.
*
* @param appserver
* The appserver name
*/
@Override
public void startAppserver(String appserver)
{
this.adminService.startAppserver(appserver, new AsyncCallback<AppserverInfo.AgentInfo[]>()
{
@Override
public void onSuccess(AppserverInfo.AgentInfo[] result)
{
getView().setAgents(appserver, result, filterExp);
}
@Override
public void onFailure(Throwable caught)
{
String msg = "Can't start a new agent for appserver " + appserver;
getView().showWarningMsg(msg);
logger.log(Level.WARNING, msg, caught);
}
});
}
/**
* Executes an asynchronous action to terminate the given agents and on its completion
* to update the current agents table view.
*
* @param appserver
* The appserver name
* @param agentIds
* The ids of the agents to be stopped
*/
@Override
public void terminateAgents(String appserver, int[] agentIds)
{
this.adminService.terminateAgents(appserver, agentIds, new AsyncCallback<AppserverInfo.AgentInfo[]>()
{
@Override
public void onSuccess(AppserverInfo.AgentInfo[] result)
{
getView().setAgents(appserver, result, filterExp);
}
@Override
public void onFailure(Throwable caught)
{
String msg = "Can't terminate selected agents for appserver " + appserver;
getView().showWarningMsg(msg);
logger.log(Level.WARNING, msg, caught);
}
});
}
/**
* Calls the admin service to terminate the selected sessions.
*
* @param appserver
* The appserver name
* @param sessions
* The sessions to be terminated.
*/
@Override
public void terminateSessions(String appserver, MultiSessionAgentSessionDef[] sessions)
{
this.adminService.terminateSessions(appserver,
sessions,
new AsyncCallback<AppserverInfo.AgentInfo[]>()
{
@Override
public void onSuccess(AppserverInfo.AgentInfo[] result)
{
getView().setAgents(appserver, result, filterExp);
}
@Override
public void onFailure(Throwable caught)
{
String msg = "Can't terminate selected sessions for appserver " + appserver;
getView().showWarningMsg(msg);
logger.log(Level.WARNING, msg, caught);
}
});
}
/**
* 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, ""));
updateAppserverList();
}
/**
* 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);
}
}