Java tutorial
/* * Copyright 2011 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.explorer.simpledb; import java.util.ArrayList; import java.util.Iterator; import java.util.List; import org.eclipse.core.runtime.Status; import org.eclipse.jface.action.Action; import org.eclipse.jface.action.IMenuManager; import org.eclipse.jface.action.Separator; import org.eclipse.jface.dialogs.Dialog; import org.eclipse.jface.dialogs.MessageDialog; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.swt.SWT; import org.eclipse.swt.events.ModifyEvent; import org.eclipse.swt.events.ModifyListener; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.layout.GridLayout; 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.Label; import org.eclipse.swt.widgets.Text; import org.eclipse.ui.navigator.CommonActionProvider; import org.eclipse.ui.statushandlers.StatusManager; import com.amazonaws.eclipse.core.AwsToolkitCore; import com.amazonaws.eclipse.explorer.ContentProviderRegistry; import com.amazonaws.eclipse.explorer.simpledb.SimpleDBExplorerNodes.DomainNode; import com.amazonaws.services.simpledb.AmazonSimpleDB; import com.amazonaws.services.simpledb.model.CreateDomainRequest; import com.amazonaws.services.simpledb.model.DeleteDomainRequest; public class SimpleDBNavigatorActionProvider extends CommonActionProvider { @Override public void fillContextMenu(final IMenuManager menu) { IStructuredSelection selection = (IStructuredSelection) getContext().getSelection(); if (selection.getFirstElement() == SimpleDBRootElement.ROOT_ELEMENT) { menu.add(new CreateDomainAction()); } else if (selection.getFirstElement() instanceof DomainNode) { List<String> domainNames = new ArrayList<String>(); Iterator iterator = selection.iterator(); while (iterator.hasNext()) { Object next = iterator.next(); if (next instanceof DomainNode) { DomainNode domainNode = (DomainNode) next; domainNames.add(domainNode.getName()); } } menu.add(new CreateDomainAction()); menu.add(new DeleteDomainAction(domainNames)); menu.add(new Separator()); menu.add(new OpenSQLScrapbookAction()); DomainNode domainNode = (DomainNode) selection.getFirstElement(); menu.add(new OpenDataTableEditorAction(domainNode.getName())); } } private static class CreateDomainAction extends Action { public CreateDomainAction() { this.setText("Create New Domain"); this.setToolTipText("Create a new Amazon SimpleDB domain"); this.setImageDescriptor( AwsToolkitCore.getDefault().getImageRegistry().getDescriptor(AwsToolkitCore.IMAGE_ADD)); } @Override public void run() { CreateDomainDialog createDomainDialog = new CreateDomainDialog(); if (createDomainDialog.open() != 0) { return; } try { AmazonSimpleDB sdb = AwsToolkitCore.getClientFactory().getSimpleDBClient(); sdb.createDomain(new CreateDomainRequest(createDomainDialog.getDomainName())); ContentProviderRegistry.refreshAllContentProviders(); } catch (Exception e) { Status status = new Status(Status.ERROR, AwsToolkitCore.PLUGIN_ID, "Unable to create domain '" + createDomainDialog.getDomainName() + "'", e); StatusManager.getManager().handle(status, StatusManager.SHOW | StatusManager.LOG); } } private class CreateDomainDialog extends MessageDialog { private String domainName; public CreateDomainDialog() { super(Display.getDefault().getActiveShell(), "Create New SimpleDB Domain", null, "Enter the name for your new SimpleDB domain.", MessageDialog.INFORMATION, new String[] { "OK", "Cancel" }, 0); } public String getDomainName() { return this.domainName; } @Override protected Control createCustomArea(final Composite parent) { Composite composite = new Composite(parent, SWT.NONE); composite.setLayoutData(new GridData(SWT.FILL, SWT.TOP, true, false)); composite.setLayout(new GridLayout(2, false)); new Label(composite, SWT.NONE).setText("Domain Name:"); final Text domainNameText = new Text(composite, SWT.BORDER); domainNameText.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false)); domainNameText.addModifyListener(new ModifyListener() { public void modifyText(final ModifyEvent e) { CreateDomainDialog.this.domainName = domainNameText.getText(); updateControls(); } }); return composite; } private void updateControls() { boolean isValid = (this.domainName != null && this.domainName.length() > 0); Button okButton = this.getButton(0); if (okButton != null) { okButton.setEnabled(isValid); } } @Override protected void createButtonsForButtonBar(final Composite parent) { super.createButtonsForButtonBar(parent); updateControls(); } } } private static class DeleteDomainAction extends Action { private final List<String> domainNames; public DeleteDomainAction(final List<String> domainNames) { this.domainNames = domainNames; this.setText("Delete Domain" + (domainNames.size() > 1 ? "s" : "")); this.setToolTipText("Delete the selected Amazon SimpleDB domains"); this.setImageDescriptor( AwsToolkitCore.getDefault().getImageRegistry().getDescriptor(AwsToolkitCore.IMAGE_REMOVE)); } @Override public void run() { Dialog dialog = newConfirmationDialog("Delete selected domains?", "Are you sure you want to delete the selected Amazon SimpleDB domains?"); if (dialog.open() != 0) { return; } AmazonSimpleDB simpleDB = new AwsToolkitCore().getClientFactory().getSimpleDBClient(); for (String domainName : this.domainNames) { try { simpleDB.deleteDomain(new DeleteDomainRequest(domainName)); } catch (Exception e) { Status status = new Status(Status.ERROR, AwsToolkitCore.PLUGIN_ID, "Unable to delete domain '" + domainName + "'", e); StatusManager.getManager().handle(status, StatusManager.LOG); } } ContentProviderRegistry.refreshAllContentProviders(); } private Dialog newConfirmationDialog(final String title, final String message) { return new MessageDialog(Display.getDefault().getActiveShell(), title, null, message, MessageDialog.WARNING, new String[] { "OK", "Cancel" }, 0); } } }