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.accesscontrol.view.action; import java.util.Map; 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.IDialogConstants; import org.eclipse.jface.viewers.StructuredSelection; import org.eclipse.ui.IViewPart; 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.accesscontrol.bean.RoleIdConstant; import com.clustercontrol.accesscontrol.bean.RoleSettingTreeConstant; import com.clustercontrol.accesscontrol.dialog.RoleSettingDialog; import com.clustercontrol.accesscontrol.view.RoleSettingTreeView; import com.clustercontrol.accesscontrol.view.SystemPrivilegeListView; import com.clustercontrol.ws.access.RoleInfo; import com.clustercontrol.ws.accesscontrol.RoleTreeItem; /** * ?[]?????<BR> * * @version 5.0.0 * @since 2.0.0 */ public class RoleSettingAssignUserAction extends AbstractHandler implements IElementUpdater { private static Log m_log = LogFactory.getLog(RoleSettingAssignUserAction.class); /** ID */ public static final String ID = RoleSettingAssignUserAction.class.getName(); /** */ private IWorkbenchPart viewPart; /** * Dispose */ @Override public void dispose() { this.viewPart = null; } /** * []?????<BR> * * []??????????<BR> * [??]????? * * @see org.eclipse.core.commands.IHandler#execute * @see com.clustercontrol.accesscontrol.dialog.UserDialog * @see com.clustercontrol.accesscontrol.view.UserListView */ @Override public Object execute(ExecutionEvent event) throws ExecutionException { // ??????ID? this.viewPart = HandlerUtil.getActivePart(event); RoleSettingTreeView roleSettingTreeView = null; try { roleSettingTreeView = (RoleSettingTreeView) this.viewPart.getAdapter(RoleSettingTreeView.class); } catch (Exception e) { m_log.info("execute " + e.getMessage()); return null; } if (roleSettingTreeView == null) { m_log.info("execute: role setting tree view is null"); return null; } StructuredSelection selection = (StructuredSelection) roleSettingTreeView.getTreeComposite().getTreeViewer() .getSelection(); RoleTreeItem item = (RoleTreeItem) selection.getFirstElement(); Object data = item.getData(); RoleTreeItem manager = RoleSettingTreeView.getManager(item); String managerName = ((RoleInfo) manager.getData()).getRoleName(); if (data instanceof RoleInfo && !((RoleInfo) data).getRoleId().equals(RoleSettingTreeConstant.ROOT_ID) && !((RoleInfo) data).getRoleId().equals(RoleSettingTreeConstant.MANAGER)) { IWorkbenchWindow window = HandlerUtil.getActiveWorkbenchWindow(event); RoleSettingDialog dialog = new RoleSettingDialog(window.getShell(), managerName, ((RoleInfo) data).getRoleId()); // if (dialog.open() == IDialogConstants.OK_ID) { roleSettingTreeView.update(); //? IWorkbenchPage page = window.getActivePage(); //?? IViewPart systemPrivilegeListView = page.findView(SystemPrivilegeListView.ID); if (systemPrivilegeListView != null) { SystemPrivilegeListView listView = (SystemPrivilegeListView) systemPrivilegeListView .getAdapter(SystemPrivilegeListView.class); if (listView == null) { m_log.info("execute: list view is null"); return null; } listView.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 RoleSettingTreeView) { // Enable button when 1 item is selected RoleSettingTreeView view = (RoleSettingTreeView) part; if (RoleIdConstant.ADMINISTRATORS.equals(view.getRoleId())) { editEnable = true; } else if (view.getRoleId() == null) { editEnable = false; } else { editEnable = true; } } this.setBaseEnabled(editEnable); } else { this.setBaseEnabled(false); } } } }