Java tutorial
/******************************************************************************* * Copyright (c) 2010 Daniel Murygin <dm[at]sernet[dot]de>. * * This program is free software: you can redistribute it and/or * modify it under the terms of the GNU Lesser 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 Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this program. * If not, see <http://www.gnu.org/licenses/>. * * Contributors: * Daniel Murygin <dm[at]sernet[dot]de> - initial API and implementation ******************************************************************************/ package sernet.verinice.iso27k.rcp.action; import java.util.HashMap; import java.util.Map; import org.apache.log4j.Logger; import org.eclipse.core.commands.ExecutionEvent; import org.eclipse.core.commands.ExecutionException; import org.eclipse.jface.resource.ImageDescriptor; import org.eclipse.jface.viewers.ISelection; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.ui.ISelectionService; import org.eclipse.ui.IWorkbench; import org.eclipse.ui.IWorkbenchWindow; import org.eclipse.ui.commands.IElementUpdater; import org.eclipse.ui.handlers.HandlerUtil; import org.eclipse.ui.menus.UIElement; import sernet.gs.ui.rcp.main.Activator; import sernet.gs.ui.rcp.main.ExceptionUtil; import sernet.gs.ui.rcp.main.ImageCache; import sernet.gs.ui.rcp.main.bsi.editors.EditorFactory; import sernet.gs.ui.rcp.main.common.model.CnAElementFactory; import sernet.gs.ui.rcp.main.common.model.CnAElementHome; import sernet.gs.ui.rcp.main.common.model.NotSufficientRightsException; import sernet.gs.ui.rcp.main.preferences.PreferenceConstants; import sernet.hui.common.VeriniceContext; import sernet.springclient.RightsServiceClient; import sernet.verinice.interfaces.ActionRightIDs; import sernet.verinice.model.common.CnATreeElement; import sernet.verinice.model.iso27k.Asset; import sernet.verinice.model.iso27k.AssetGroup; import sernet.verinice.model.iso27k.Audit; import sernet.verinice.model.iso27k.AuditGroup; import sernet.verinice.model.iso27k.Control; import sernet.verinice.model.iso27k.ControlGroup; import sernet.verinice.model.iso27k.DocumentGroup; import sernet.verinice.model.iso27k.EvidenceGroup; import sernet.verinice.model.iso27k.ExceptionGroup; import sernet.verinice.model.iso27k.FindingGroup; import sernet.verinice.model.iso27k.IISO27kGroup; import sernet.verinice.model.iso27k.IncidentGroup; import sernet.verinice.model.iso27k.IncidentScenarioGroup; import sernet.verinice.model.iso27k.InterviewGroup; import sernet.verinice.model.iso27k.PersonGroup; import sernet.verinice.model.iso27k.ProcessGroup; import sernet.verinice.model.iso27k.RecordGroup; import sernet.verinice.model.iso27k.RequirementGroup; import sernet.verinice.model.iso27k.ResponseGroup; import sernet.verinice.model.iso27k.ThreatGroup; import sernet.verinice.model.iso27k.VulnerabilityGroup; import sernet.verinice.rcp.RightsEnabledHandler; /** * @author Daniel Murygin <dm[at]sernet[dot]de> * */ public class AddGroupHandler extends RightsEnabledHandler implements IElementUpdater { private static final Logger LOG = Logger.getLogger(AddGroupHandler.class); public static final Map<String, String> TITLE_FOR_TYPE; static { TITLE_FOR_TYPE = new HashMap<String, String>(); TITLE_FOR_TYPE.put(AssetGroup.TYPE_ID, Messages.getString("AddGroup.0")); //$NON-NLS-1$ TITLE_FOR_TYPE.put(AuditGroup.TYPE_ID, Messages.getString("AddGroup.1")); //$NON-NLS-1$ TITLE_FOR_TYPE.put(ControlGroup.TYPE_ID, Messages.getString("AddGroup.2")); //$NON-NLS-1$ TITLE_FOR_TYPE.put(DocumentGroup.TYPE_ID, Messages.getString("AddGroup.3")); //$NON-NLS-1$ TITLE_FOR_TYPE.put(EvidenceGroup.TYPE_ID, Messages.getString("AddGroup.4")); //$NON-NLS-1$ TITLE_FOR_TYPE.put(ExceptionGroup.TYPE_ID, Messages.getString("AddGroup.5")); //$NON-NLS-1$ TITLE_FOR_TYPE.put(FindingGroup.TYPE_ID, Messages.getString("AddGroup.6")); //$NON-NLS-1$ TITLE_FOR_TYPE.put(IncidentGroup.TYPE_ID, Messages.getString("AddGroup.7")); //$NON-NLS-1$ TITLE_FOR_TYPE.put(IncidentScenarioGroup.TYPE_ID, Messages.getString("AddGroup.8")); //$NON-NLS-1$ TITLE_FOR_TYPE.put(InterviewGroup.TYPE_ID, Messages.getString("AddGroup.9")); //$NON-NLS-1$ TITLE_FOR_TYPE.put(PersonGroup.TYPE_ID, Messages.getString("AddGroup.10")); //$NON-NLS-1$ TITLE_FOR_TYPE.put(ProcessGroup.TYPE_ID, Messages.getString("AddGroup.11")); //$NON-NLS-1$ TITLE_FOR_TYPE.put(RecordGroup.TYPE_ID, Messages.getString("AddGroup.12")); //$NON-NLS-1$ TITLE_FOR_TYPE.put(RequirementGroup.TYPE_ID, Messages.getString("AddGroup.13")); //$NON-NLS-1$ TITLE_FOR_TYPE.put(ResponseGroup.TYPE_ID, Messages.getString("AddGroup.14")); //$NON-NLS-1$ TITLE_FOR_TYPE.put(ThreatGroup.TYPE_ID, Messages.getString("AddGroup.15")); //$NON-NLS-1$ TITLE_FOR_TYPE.put(VulnerabilityGroup.TYPE_ID, Messages.getString("AddGroup.16")); //$NON-NLS-1$ TITLE_FOR_TYPE.put(Asset.TYPE_ID, Messages.getString("AddGroup.17")); //$NON-NLS-1$ } private IISO27kGroup parent; private String typeId; public AddGroupHandler() { super(); } /* (non-Javadoc) * @see org.eclipse.core.commands.IHandler#execute(org.eclipse.core.commands.ExecutionEvent) */ @Override public Object execute(ExecutionEvent event) throws ExecutionException { try { if (checkRights()) { final IStructuredSelection selection = (IStructuredSelection) HandlerUtil .getCurrentSelection(event); Object sel = selection.getFirstElement(); if (sel instanceof IISO27kGroup) { parent = (IISO27kGroup) sel; } CnATreeElement newElement = null; if (parent != null) { String currentType = this.typeId; if (currentType == null) { // child groups have the same type as parents currentType = parent.getTypeId(); if (parent instanceof Asset) { currentType = ControlGroup.TYPE_ID; } } boolean inheritIcon = Activator.getDefault().getPreferenceStore() .getBoolean(PreferenceConstants.INHERIT_SPECIAL_GROUP_ICON); newElement = CnAElementFactory.getInstance().saveNew((CnATreeElement) parent, currentType, null, inheritIcon); } if (newElement != null) { EditorFactory.getInstance().openEditor(newElement); } } else { throw new NotSufficientRightsException("Action not allowed for user"); } } catch (NotSufficientRightsException e) { LOG.error("Could not add element", e); //$NON-NLS-1$ ExceptionUtil.log(e, Messages.getString("AddElement.21")); //$NON-NLS-1$ } catch (Exception e) { LOG.error("Could not add element group", e); //$NON-NLS-1$ ExceptionUtil.log(e, Messages.getString("AddGroup.18")); //$NON-NLS-1$ } return null; } /* (non-Javadoc) * @see org.eclipse.ui.commands.IElementUpdater#updateElement(org.eclipse.ui.menus.UIElement, java.util.Map) */ @Override public void updateElement(UIElement menu, Map arg1) { ISelection selection = getSelection(); if (selection instanceof IStructuredSelection) { Object sel = ((IStructuredSelection) selection).getFirstElement(); boolean allowed = false; boolean enabled = false; if (sel instanceof CnATreeElement) { allowed = CnAElementHome.getInstance().isNewChildAllowed((CnATreeElement) sel); } if (sel instanceof Audit) { enabled = false; menu.setText(Messages.getString("AddGroup.19")); } else if (sel instanceof IISO27kGroup) { enabled = true; IISO27kGroup group = (IISO27kGroup) sel; String typeId0 = group.getChildTypes()[0]; if (group instanceof Asset) { typeId0 = Control.TYPE_ID; } menu.setIcon(ImageDescriptor.createFromImage(ImageCache.getInstance().getISO27kTypeImage(typeId0))); menu.setText(TITLE_FOR_TYPE.get(group.getTypeId()) != null ? TITLE_FOR_TYPE.get(group.getTypeId()) : Messages.getString("AddGroup.19")); //$NON-NLS-1$ } // Only change state when it is enabled, since we do not want to // trash the enablement settings of plugin.xml if (this.isEnabled()) { this.setEnabled(allowed && enabled); } } } public ISelection getSelection() { Activator activator = Activator.getDefault(); IWorkbench workbench = activator.getWorkbench(); IWorkbenchWindow workbenchWindow = workbench.getActiveWorkbenchWindow(); ISelectionService selectionService = workbenchWindow.getSelectionService(); ISelection selection = selectionService.getSelection(); return selection; } /* (non-Javadoc) * @see sernet.verinice.interfaces.RightEnabledUserInteraction#checkRights() */ @Override public boolean checkRights() { RightsServiceClient service = (RightsServiceClient) VeriniceContext.get(VeriniceContext.RIGHTS_SERVICE); return service.isEnabled(getRightID()); } /* (non-Javadoc) * @see sernet.verinice.interfaces.RightEnabledUserInteraction#getRightID() */ @Override public String getRightID() { return ActionRightIDs.ADDISMGROUP; } /* (non-Javadoc) * @see sernet.verinice.interfaces.RightEnabledUserInteraction#setRightID(java.lang.String) */ @Override public void setRightID(String rightID) { // DO NOTHING } }