Java tutorial
/* Copyright (C) 2014 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.infra.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.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.menus.UIElement; import com.clustercontrol.infra.action.GetInfraFileManagerTableDefine; import com.clustercontrol.infra.util.InfraEndpointWrapper; import com.clustercontrol.infra.util.InfraFileUtil; import com.clustercontrol.infra.view.InfraFileManagerView; import com.clustercontrol.util.HinemosMessage; import com.clustercontrol.util.Messages; import com.clustercontrol.util.UIManager; public class DeleteInfraFileAction extends InfraFileManagerBaseAction { // private static Log m_log = LogFactory.getLog(DeleteInfraManagementAction.class); /** ID */ public static final String ID = DeleteInfraFileAction.class.getName(); @Override public Object execute(ExecutionEvent event) throws ExecutionException { InfraFileManagerView view = getView(event); if (view == null) { m_log.info("execute: view is null"); return null; } List<String> fileIdList = getSelectedInfraFileIdList(view); if (fileIdList.isEmpty()) { return null; } StructuredSelection selection = null; if (view.getComposite().getTableViewer().getSelection() instanceof StructuredSelection) { selection = (StructuredSelection) view.getComposite().getTableViewer().getSelection(); } if (selection == null || selection.isEmpty()) { return null; } Map<String, List<String>> map = new ConcurrentHashMap<String, List<String>>(); for (Object object : selection.toList()) { String managerName = (String) ((ArrayList<?>) object).get(GetInfraFileManagerTableDefine.MANAGER_NAME); if (map.get(managerName) == null) { map.put(managerName, new ArrayList<String>()); } } StringBuffer strFileIds = new StringBuffer(); String tmpFileId = null; for (Object object : selection.toList()) { String managerName = (String) ((ArrayList<?>) object).get(GetInfraFileManagerTableDefine.MANAGER_NAME); tmpFileId = (String) ((ArrayList<?>) object).get(GetInfraFileManagerTableDefine.FILE_ID); map.get(managerName).add(tmpFileId); if (strFileIds.length() == 0) { strFileIds.append(tmpFileId); } else { strFileIds.append(", " + tmpFileId); } } if (MessageDialog.openConfirm(null, Messages.getString("confirmed"), Messages.getString("message.infra.confirm.action", new Object[] { Messages.getString("file"), Messages.getString("delete"), strFileIds }))) { Map<String, String> errMsg = new ConcurrentHashMap<String, String>(); for (Map.Entry<String, List<String>> entry : map.entrySet()) { String managerName = entry.getKey(); InfraEndpointWrapper wrapper = InfraEndpointWrapper.getWrapper(managerName); try { wrapper.deleteInfraFileList(entry.getValue()); } catch (Exception e) { m_log.error(e); errMsg.put(managerName, HinemosMessage.replace(e.getMessage())); } } if (errMsg.isEmpty()) { String action = Messages.getString("delete"); InfraFileUtil.showSuccessDialog(action, strFileIds.toString()); } else { UIManager.showMessageBox(errMsg, true); } // ? view.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 enable = false; if (part instanceof InfraFileManagerView) { InfraFileManagerView view = (InfraFileManagerView) part.getAdapter(InfraFileManagerView.class); if (view == null) { m_log.info("execute: view is null"); return; } StructuredSelection selection = null; if (view.getComposite().getTableViewer().getSelection() instanceof StructuredSelection) { selection = (StructuredSelection) view.getComposite().getTableViewer().getSelection(); } if (selection != null && selection.size() >= 1) { enable = true; } } this.setBaseEnabled(enable); } else { this.setBaseEnabled(false); } } } }