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.user; import java.io.BufferedWriter; import java.io.File; import java.io.FileWriter; import java.io.IOException; import org.eclipse.core.runtime.IStatus; import org.eclipse.core.runtime.Status; import org.eclipse.jface.dialogs.MessageDialog; import org.eclipse.jface.layout.GridDataFactory; import org.eclipse.swt.SWT; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.events.SelectionListener; import org.eclipse.swt.widgets.Button; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Control; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.FileDialog; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Text; import org.eclipse.ui.statushandlers.StatusManager; import com.amazonaws.eclipse.core.AwsToolkitCore; import com.amazonaws.eclipse.identitymanagement.IdentityManagementPlugin; import com.amazonaws.eclipse.identitymanagement.user.UserCredentialManagementDialog.AccessKeyTable; import com.amazonaws.services.identitymanagement.AmazonIdentityManagement; import com.amazonaws.services.identitymanagement.model.CreateAccessKeyRequest; import com.amazonaws.services.identitymanagement.model.CreateAccessKeyResult; public class NewAccessKeyDialog extends MessageDialog { private String accessKeyIdLabelContent = "Access Key Id: "; private String secretAccessKeyContent = "Secret Access Key: "; private AmazonIdentityManagement iam; private String userName; private Text accessKeyIdText; private Text secretKeyText; private AccessKeyTable accessKeyTable; private Button downloadButton; private CreateAccessKeyResult createAccessKeyResult; public NewAccessKeyDialog(AmazonIdentityManagement iam, String userName, AccessKeyTable accessKeyTable) { super(Display.getCurrent().getActiveShell(), "Manage Access Key", null, null, MessageDialog.NONE, new String[] { "OK", "Cancel" }, 0); this.iam = iam; this.userName = userName; this.accessKeyTable = accessKeyTable; } @Override protected Control createCustomArea(Composite parent) { new Label(parent, SWT.NONE).setText( "This is the last time these user security credentials will be available for download. You can manage \n and recreate these credentials any time.\n"); accessKeyIdText = new Text(parent, SWT.READ_ONLY); accessKeyIdText.setText(accessKeyIdLabelContent); accessKeyIdText.setBackground(Display.getCurrent().getSystemColor(SWT.COLOR_YELLOW)); GridDataFactory.fillDefaults().grab(true, false).applyTo(accessKeyIdText); secretKeyText = new Text(parent, SWT.READ_ONLY); secretKeyText.setText(secretAccessKeyContent); secretKeyText.setBackground(Display.getCurrent().getSystemColor(SWT.COLOR_YELLOW)); GridDataFactory.fillDefaults().grab(true, false).applyTo(secretKeyText); downloadButton = new Button(parent, SWT.PUSH); downloadButton.setImage(AwsToolkitCore.getDefault().getImageRegistry().get(AwsToolkitCore.IMAGE_DOWNLOAD)); downloadButton.setText("Download"); // The button will be enabled after the new key has been created downloadButton.setEnabled(false); downloadButton.addSelectionListener(new SelectionListener() { public void widgetSelected(SelectionEvent e) { FileDialog fd = new FileDialog(Display.getCurrent().getActiveShell(), SWT.SAVE); fd.setText("Save As"); fd.setFileName("credentials.csv"); String[] filterExt = { "*.csv" }; fd.setFilterExtensions(filterExt); String path = fd.open(); if (path != null) { try { saveFile(path); } catch (Exception exception) { Status status = new Status(IStatus.ERROR, IdentityManagementPlugin.PLUGIN_ID, "Unable to download the file: " + exception.getMessage(), exception); StatusManager.getManager().handle(status, StatusManager.SHOW); } } } public void widgetDefaultSelected(SelectionEvent e) { } }); new CreateAccessKeyThread().start(); return parent; } // Save the file private void saveFile(String fileName) throws IOException { File f = new File(fileName); // Check whether the file already exists. if (f.createNewFile() == false) { throw new IOException("File already exists " + fileName); } String content = ""; FileWriter fstream = new FileWriter(f.getAbsoluteFile()); BufferedWriter out = new BufferedWriter(fstream); out.write("\"User Name\",\"Access Key Id\",\"Secret Access Key\"\n"); content += "\"" + userName + "\","; content += "\"" + createAccessKeyResult.getAccessKey().getAccessKeyId() + "\","; content += "\"" + createAccessKeyResult.getAccessKey().getSecretAccessKey() + "\""; out.write(content); out.close(); } // Create the new access key and update the UI private class CreateAccessKeyThread extends Thread { @Override public void run() { Display.getDefault().asyncExec(new Runnable() { public void run() { try { createAccessKeyResult = iam .createAccessKey(new CreateAccessKeyRequest().withUserName(userName)); accessKeyIdLabelContent += createAccessKeyResult.getAccessKey().getAccessKeyId(); secretAccessKeyContent += createAccessKeyResult.getAccessKey().getSecretAccessKey(); accessKeyIdText.setText(accessKeyIdLabelContent); secretKeyText.setText(secretAccessKeyContent); downloadButton.setEnabled(true); accessKeyTable.refresh(); } catch (Exception e) { NewAccessKeyDialog.this.close(); Status status = new Status(IStatus.ERROR, IdentityManagementPlugin.PLUGIN_ID, "Unable to create access key: " + e.getMessage(), e); StatusManager.getManager().handle(status, StatusManager.SHOW); } } }); } } }