Java tutorial
/* * DBeaver - Universal Database Manager * Copyright (C) 2010-2016 Serge Rieder (serge@jkiss.org) * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License (version 2) * as published by the Free Software Foundation. * * 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., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ package org.jkiss.dbeaver.ext.postgresql.edit; import org.eclipse.jface.action.Action; import org.eclipse.jface.action.IContributionManager; import org.eclipse.jface.action.Separator; import org.eclipse.osgi.util.NLS; import org.eclipse.swt.widgets.Composite; import org.eclipse.ui.ISharedImages; import org.jkiss.dbeaver.ext.postgresql.model.PostgreDataSource; import org.jkiss.dbeaver.ext.postgresql.model.session.PostgreSessionManager; import org.jkiss.dbeaver.model.admin.sessions.DBAServerSession; import org.jkiss.dbeaver.model.admin.sessions.DBAServerSessionManager; import org.jkiss.dbeaver.model.exec.DBCExecutionContext; import org.jkiss.dbeaver.ui.UIUtils; import org.jkiss.dbeaver.ui.views.session.AbstractSessionEditor; import org.jkiss.dbeaver.ui.views.session.SessionManagerViewer; import org.jkiss.utils.CommonUtils; /** * PostgreSessionEditor */ public class PostgreSessionEditor extends AbstractSessionEditor { private KillSessionAction terminateQueryAction; @Override public void createPartControl(Composite parent) { terminateQueryAction = new KillSessionAction(); super.createPartControl(parent); } @Override protected SessionManagerViewer createSessionViewer(DBCExecutionContext executionContext, Composite parent) { return new SessionManagerViewer(this, parent, new PostgreSessionManager((PostgreDataSource) executionContext.getDataSource())) { @Override protected void contributeToToolbar(DBAServerSessionManager sessionManager, IContributionManager contributionManager) { contributionManager.add(terminateQueryAction); contributionManager.add(new Separator()); } @Override protected void onSessionSelect(DBAServerSession session) { super.onSessionSelect(session); terminateQueryAction.setEnabled(session != null && !CommonUtils.isEmpty(session.getActiveQuery())); } }; } private class KillSessionAction extends Action { public KillSessionAction() { super("Terminate", UIUtils.getShardImageDescriptor(ISharedImages.IMG_ELCL_STOP)); } @Override public void run() { final DBAServerSession session = getSessionsViewer().getSelectedSession(); if (session != null && UIUtils.confirmAction(getSite().getShell(), this.getText(), NLS.bind("Teminate session?", getText(), session))) { getSessionsViewer().alterSession(getSessionsViewer().getSelectedSession(), null); } } } }