Java tutorial
/* * Copyright 2013 Amazon Technologies, Inc. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at: * * http://aws.amazon.com/apache2.0 * * This file is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES * OR CONDITIONS OF ANY KIND, either express or implied. See the * License for the specific language governing permissions and * limitations under the License. */ package com.amazonaws.eclipse.identitymanagement.role; import java.util.List; import org.eclipse.core.runtime.IProgressMonitor; import org.eclipse.core.runtime.IStatus; import org.eclipse.core.runtime.Status; import org.eclipse.core.runtime.jobs.Job; import org.eclipse.jface.action.Action; import org.eclipse.jface.action.IMenuListener; import org.eclipse.jface.action.IMenuManager; import org.eclipse.jface.action.MenuManager; import org.eclipse.jface.dialogs.MessageDialog; import org.eclipse.jface.layout.TableColumnLayout; import org.eclipse.jface.resource.ImageDescriptor; import org.eclipse.jface.viewers.ArrayContentProvider; import org.eclipse.jface.viewers.ColumnWeightData; import org.eclipse.jface.viewers.ILabelProviderListener; import org.eclipse.jface.viewers.ITableLabelProvider; import org.eclipse.jface.viewers.TableViewer; import org.eclipse.jface.viewers.Viewer; import org.eclipse.swt.SWT; import org.eclipse.swt.graphics.Image; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Event; import org.eclipse.swt.widgets.Listener; import org.eclipse.swt.widgets.Table; import org.eclipse.swt.widgets.TableColumn; import org.eclipse.ui.forms.widgets.FormToolkit; import org.eclipse.ui.statushandlers.StatusManager; import com.amazonaws.eclipse.core.AwsToolkitCore; import com.amazonaws.eclipse.identitymanagement.IdentityManagementPlugin; import com.amazonaws.services.identitymanagement.AmazonIdentityManagement; import com.amazonaws.services.identitymanagement.model.DeleteRolePolicyRequest; import com.amazonaws.services.identitymanagement.model.DeleteRoleRequest; import com.amazonaws.services.identitymanagement.model.InstanceProfile; import com.amazonaws.services.identitymanagement.model.ListInstanceProfilesForRoleRequest; import com.amazonaws.services.identitymanagement.model.ListInstanceProfilesForRoleResult; import com.amazonaws.services.identitymanagement.model.ListRolePoliciesRequest; import com.amazonaws.services.identitymanagement.model.ListRolePoliciesResult; import com.amazonaws.services.identitymanagement.model.RemoveRoleFromInstanceProfileRequest; import com.amazonaws.services.identitymanagement.model.Role; public class RoleTable extends Composite { private TableViewer viewer; private RoleSummary roleSummary; private RolePermissions rolePermissions; private RoleTrustRelationships roleTrustRelationships; private RoleTableContentProvider contentProvider; private AmazonIdentityManagement iam; private final String DELTE_ROLE_CONFIRMATION = "All selected roles and their associated permissions will be deleted. This will affect applications using these roles. Do you want to continue?"; public RoleTable(AmazonIdentityManagement iam, Composite parent, FormToolkit toolkit) { super(parent, SWT.NONE); this.iam = iam; TableColumnLayout tableColumnLayout = new TableColumnLayout(); this.setLayout(tableColumnLayout); this.setLayoutData(new GridData(GridData.FILL_BOTH)); contentProvider = new RoleTableContentProvider(); RoleTableLabelProvider labelProvider = new RoleTableLabelProvider(); viewer = new TableViewer(this, SWT.BORDER | SWT.MULTI); viewer.getTable().setLinesVisible(true); viewer.getTable().setHeaderVisible(true); viewer.setLabelProvider(labelProvider); viewer.setContentProvider(contentProvider); MenuManager menuManager = new MenuManager("#PopupMenu"); menuManager.setRemoveAllWhenShown(true); menuManager.addMenuListener(new IMenuListener() { public void menuAboutToShow(IMenuManager manager) { if (viewer.getTable().getSelectionCount() > 0) { manager.add(new Action() { @Override public ImageDescriptor getImageDescriptor() { return AwsToolkitCore.getDefault().getImageRegistry() .getDescriptor(AwsToolkitCore.IMAGE_REMOVE); } @Override public void run() { boolean confirmation = MessageDialog.openConfirm(Display.getCurrent().getActiveShell(), "Delete Role", DELTE_ROLE_CONFIRMATION); if (confirmation) { roleSummary.setRole(null); rolePermissions.setRole(null); roleTrustRelationships.setRole(null); deleteMultipleGroups(viewer.getTable().getSelectionIndices()); } } @Override public String getText() { if (viewer.getTable().getSelectionIndices().length > 1) { return "Delete Roles"; } return "Delete Role"; } }); } } }); viewer.getTable().setMenu(menuManager.createContextMenu(viewer.getTable())); viewer.getTable().addListener(SWT.Selection, new Listener() { public void handleEvent(Event event) { int index = viewer.getTable().getSelectionIndex(); if (index >= 0) { Role role = contentProvider.getItemByIndex(index); roleSummary.setRole(role); rolePermissions.setRole(role); roleTrustRelationships.setRole(role); } else { roleSummary.setRole(null); rolePermissions.setRole(null); roleTrustRelationships.setRole(null); } } }); createColumns(tableColumnLayout, viewer.getTable()); refresh(); } private void createColumns(TableColumnLayout columnLayout, Table table) { createColumn(table, columnLayout, "Role Name"); createColumn(table, columnLayout, "Creation Time"); } private TableColumn createColumn(Table table, TableColumnLayout columnLayout, String text) { TableColumn column = new TableColumn(table, SWT.NONE); column.setText(text); column.setMoveable(true); columnLayout.setColumnData(column, new ColumnWeightData(30)); return column; } private class RoleTableContentProvider extends ArrayContentProvider { private Role[] roles; public void dispose() { } public void inputChanged(Viewer viewer, Object oldInput, Object newInput) { if (newInput instanceof Role[]) roles = (Role[]) newInput; else roles = new Role[0]; } public Object[] getElements(Object inputElement) { return roles; } public Role getItemByIndex(int index) { return roles[index]; } } private class RoleTableLabelProvider implements ITableLabelProvider { public void addListener(ILabelProviderListener listener) { } public void removeListener(ILabelProviderListener listener) { } public void dispose() { } public boolean isLabelProperty(Object element, String property) { return false; } public Image getColumnImage(Object element, int columnIndex) { return null; } public String getColumnText(Object element, int columnIndex) { if (element instanceof Role == false) return ""; Role role = (Role) element; switch (columnIndex) { case 0: return role.getRoleName(); case 1: return role.getCreateDate().toString(); default: return ""; } } } public void refresh() { new LoadRoleTableThread().start(); } public void setRoleSummary(RoleSummary roleSummary) { this.roleSummary = roleSummary; } public void setRoleTrustRelationships(RoleTrustRelationships roleTruestRelationships) { this.roleTrustRelationships = roleTruestRelationships; } public void setRolePermissions(RolePermissions rolePermissions) { this.rolePermissions = rolePermissions; } private void deleteRole(String roleName) { ListRolePoliciesResult listRolePolicyResult = iam .listRolePolicies(new ListRolePoliciesRequest().withRoleName(roleName)); for (String policyName : listRolePolicyResult.getPolicyNames()) { iam.deleteRolePolicy(new DeleteRolePolicyRequest().withPolicyName(policyName).withRoleName(roleName)); } ListInstanceProfilesForRoleResult listInstanceProfilesForRoleResult = iam .listInstanceProfilesForRole(new ListInstanceProfilesForRoleRequest().withRoleName(roleName)); for (InstanceProfile instanceProfile : listInstanceProfilesForRoleResult.getInstanceProfiles()) { iam.removeRoleFromInstanceProfile(new RemoveRoleFromInstanceProfileRequest() .withInstanceProfileName(instanceProfile.getInstanceProfileName()).withRoleName(roleName)); } iam.deleteRole(new DeleteRoleRequest().withRoleName(roleName)); } private void deleteMultipleGroups(final int[] indices) { new Job("Delete roles") { @Override protected IStatus run(IProgressMonitor monitor) { for (int index : indices) { String roleName = contentProvider.getItemByIndex(index).getRoleName(); try { deleteRole(roleName); } catch (Exception e) { return new Status(Status.ERROR, AwsToolkitCore.PLUGIN_ID, "Unable to delete roles: " + e.getMessage(), e); } } refresh(); return Status.OK_STATUS; } }.schedule(); } private class LoadRoleTableThread extends Thread { @Override public void run() { try { final List<Role> roles; roles = iam.listRoles().getRoles(); Display.getDefault().asyncExec(new Runnable() { public void run() { viewer.setInput(roles.toArray(new Role[roles.size()])); } }); } catch (Exception e) { Status status = new Status(IStatus.WARNING, IdentityManagementPlugin.PLUGIN_ID, "Unable to describe roles", e); StatusManager.getManager().handle(status, StatusManager.LOG); } } } }