Java tutorial
/* Copyright (C) 2006 NTT DATA Corporation 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. 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. */ package com.clustercontrol.maintenance.view.action; import java.util.ArrayList; import java.util.List; import java.util.Map; import java.util.concurrent.ConcurrentHashMap; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.eclipse.core.commands.AbstractHandler; import org.eclipse.core.commands.ExecutionEvent; import org.eclipse.core.commands.ExecutionException; import org.eclipse.jface.dialogs.MessageDialog; import org.eclipse.jface.viewers.StructuredSelection; import org.eclipse.ui.IWorkbenchPage; import org.eclipse.ui.IWorkbenchPart; import org.eclipse.ui.IWorkbenchWindow; import org.eclipse.ui.PlatformUI; import org.eclipse.ui.commands.IElementUpdater; import org.eclipse.ui.handlers.HandlerUtil; import org.eclipse.ui.menus.UIElement; import com.clustercontrol.maintenance.action.GetMaintenanceListTableDefine; import com.clustercontrol.maintenance.composite.MaintenanceListComposite; import com.clustercontrol.maintenance.util.MaintenanceEndpointWrapper; import com.clustercontrol.maintenance.view.MaintenanceListView; import com.clustercontrol.util.HinemosMessage; import com.clustercontrol.util.Messages; import com.clustercontrol.util.UIManager; import com.clustercontrol.ws.maintenance.InvalidRole_Exception; /** * []?<BR> * * @version 4.0.0 * @since 4.0.0 */ public class MaintenanceDeleteAction extends AbstractHandler implements IElementUpdater { // private static Log m_log = LogFactory.getLog(MaintenanceDeleteAction.class); /** ID */ public static final String ID = MaintenanceDeleteAction.class.getName(); /** */ private IWorkbenchPart viewPart; /** * Dispose */ @Override public void dispose() { this.viewPart = null; } @Override public Object execute(ExecutionEvent event) throws ExecutionException { // ??? this.viewPart = HandlerUtil.getActivePart(event); MaintenanceListView view = null; try { view = (MaintenanceListView) this.viewPart.getAdapter(MaintenanceListView.class); } catch (Exception e) { m_log.info("execute " + e.getMessage()); return null; } if (view == null) { m_log.info("execute: view is null"); return null; } MaintenanceListComposite composite = (MaintenanceListComposite) view.getListComposite(); StructuredSelection selection = (StructuredSelection) composite.getTableViewer().getSelection(); List<?> list = (List<?>) selection.toList(); Map<String, List<String>> map = new ConcurrentHashMap<String, List<String>>(); for (Object obj : list) { List<?> objList = (List<?>) obj; String managerName = (String) objList.get(GetMaintenanceListTableDefine.MANAGER_NAME); if (map.get(managerName) == null) { map.put(managerName, new ArrayList<String>()); } } StringBuffer maintenanceId = new StringBuffer(); for (Object obj : list) { List<?> objList = (List<?>) obj; String managerName = (String) objList.get(GetMaintenanceListTableDefine.MANAGER_NAME); String id = (String) objList.get(GetMaintenanceListTableDefine.MAINTENANCE_ID); map.get(managerName).add(id); if (maintenanceId.length() > 0) { maintenanceId.append(", "); } maintenanceId.append(id + "(" + managerName + ")"); } // ????????? if (map.isEmpty()) { MessageDialog.openWarning(null, Messages.getString("warning"), Messages.getString("message.maintenance.9")); return null; } String[] args = { maintenanceId.toString() }; if (MessageDialog.openConfirm(null, Messages.getString("confirmed"), Messages.getString("message.maintenance.7", args)) == false) { return null; } Map<String, String> errorMsgs = new ConcurrentHashMap<>(); for (Map.Entry<String, List<String>> entry : map.entrySet()) { String managerName = entry.getKey(); MaintenanceEndpointWrapper wrapper = MaintenanceEndpointWrapper.getWrapper(managerName); for (String val : entry.getValue()) { try { wrapper.deleteMaintenance(val); } catch (InvalidRole_Exception e) { errorMsgs.put(managerName, Messages.getString("message.accesscontrol.16")); } catch (Exception e) { m_log.warn("run(), " + e.getMessage(), e); errorMsgs.put(managerName, Messages.getString("message.hinemos.failure.unexpected") + HinemosMessage.replace(e.getMessage())); } } } // if (0 < errorMsgs.size()) { UIManager.showMessageBox(errorMsgs, true); } else { MessageDialog.openInformation(null, Messages.getString("successful"), Messages.getString("message.maintenance.5", args)); } composite.update(); return null; } @Override public void updateElement(UIElement element, @SuppressWarnings("rawtypes") Map parameters) { IWorkbenchWindow window = PlatformUI.getWorkbench().getActiveWorkbenchWindow(); // page may not start at state restoring if (null != window) { IWorkbenchPage page = window.getActivePage(); if (null != page) { IWorkbenchPart part = page.getActivePart(); boolean editEnable = false; if (part instanceof MaintenanceListView) { // Enable button when 1 item is selected MaintenanceListView view = (MaintenanceListView) part; if (view.getSelectedNum() > 0) { editEnable = true; } } this.setBaseEnabled(editEnable); } else { this.setBaseEnabled(false); } } } }