Java tutorial
/* * Copyright 2012 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.cloudformation; import java.io.File; import org.apache.commons.io.FileUtils; import org.eclipse.core.resources.ResourcesPlugin; import org.eclipse.core.runtime.IProgressMonitor; import org.eclipse.core.runtime.IStatus; import org.eclipse.core.runtime.Path; import org.eclipse.core.runtime.Status; import org.eclipse.core.runtime.jobs.Job; import org.eclipse.jface.action.Action; import org.eclipse.jface.action.IMenuManager; import org.eclipse.jface.action.Separator; import org.eclipse.jface.resource.ImageDescriptor; import org.eclipse.jface.viewers.StructuredSelection; import org.eclipse.jface.wizard.WizardDialog; import org.eclipse.swt.SWT; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.FileDialog; import org.eclipse.ui.ISharedImages; import org.eclipse.ui.PlatformUI; import org.eclipse.ui.navigator.CommonActionProvider; import com.amazonaws.eclipse.cloudformation.CloudFormationPlugin; import com.amazonaws.eclipse.core.AwsToolkitCore; import com.amazonaws.eclipse.explorer.cloudformation.CloudFormationContentProvider.StackNode; import com.amazonaws.eclipse.explorer.cloudformation.wizard.CreateStackWizard; import com.amazonaws.eclipse.explorer.cloudformation.wizard.CreateStackWizardDataModel.Mode; import com.amazonaws.services.cloudformation.AmazonCloudFormation; import com.amazonaws.services.cloudformation.model.CancelUpdateStackRequest; import com.amazonaws.services.cloudformation.model.GetTemplateRequest; import com.amazonaws.services.cloudformation.model.GetTemplateResult; /** * Action provider when right-clicking on Cloud Formation nodes in the explorer. */ public class CloudFormationExplorerActionProvider extends CommonActionProvider { /* * (non-Javadoc) * * @see * org.eclipse.ui.actions.ActionGroup#fillContextMenu(org.eclipse.jface. * action.IMenuManager) */ @Override public void fillContextMenu(IMenuManager menu) { StructuredSelection selection = (StructuredSelection) getActionSite().getStructuredViewer().getSelection(); if (selection.size() != 1) return; menu.add(new CreateStackAction()); Object firstElement = selection.getFirstElement(); if (firstElement instanceof StackNode) { menu.add(new Separator()); menu.add(new SaveStackTemplateAction((StackNode) firstElement)); menu.add(new CancelStackUpdateAction((StackNode) firstElement)); menu.add(new UpdateStackAction((StackNode) firstElement)); } } private final class CreateStackAction extends Action { @Override public String getDescription() { return "Create a new stack"; } @Override public ImageDescriptor getImageDescriptor() { return AwsToolkitCore.getDefault().getImageRegistry().getDescriptor(AwsToolkitCore.IMAGE_ADD); } @Override public String getText() { return "Create Stack"; } @Override public void run() { WizardDialog dialog = new WizardDialog(Display.getCurrent().getActiveShell(), new CreateStackWizard()); dialog.open(); } } private final class UpdateStackAction extends Action { private final StackNode stack; public UpdateStackAction(StackNode stack) { this.stack = stack; } @Override public String getDescription() { return "Update Stack"; } @Override public String getText() { return "Update Stack"; } @Override public void run() { WizardDialog dialog = new WizardDialog(Display.getCurrent().getActiveShell(), new CreateStackWizard(stack.getName(), Mode.Update)); dialog.open(); } } private final class CancelStackUpdateAction extends Action { private final StackNode stack; public CancelStackUpdateAction(StackNode stack) { this.stack = stack; } @Override public String getDescription() { return "Cancel stack update"; } @Override public ImageDescriptor getImageDescriptor() { return AwsToolkitCore.getDefault().getImageRegistry().getDescriptor(AwsToolkitCore.IMAGE_REMOVE); } @Override public String getText() { return "Cancel Stack Update"; } @Override public void run() { new Job("Cancel stack update") { protected IStatus run(final IProgressMonitor monitor) { try { AmazonCloudFormation cloudFormationClient = AwsToolkitCore.getClientFactory() .getCloudFormationClient(); cloudFormationClient .cancelUpdateStack(new CancelUpdateStackRequest().withStackName(stack.getName())); } catch (Exception e) { AwsToolkitCore.getDefault().logException("Couldn't cancel the stack update", e); return new Status(Status.ERROR, CloudFormationPlugin.PLUGIN_ID, "Couldn't cancel the stack update:", e); } return Status.OK_STATUS; } }.schedule(); } } private final class SaveStackTemplateAction extends Action { private final StackNode stack; public SaveStackTemplateAction(StackNode stack) { this.stack = stack; } @Override public String getDescription() { return "Save Stack Template As..."; } @Override public ImageDescriptor getImageDescriptor() { return PlatformUI.getWorkbench().getSharedImages() .getImageDescriptor(ISharedImages.IMG_ETOOL_SAVEAS_EDIT); } @Override public String getText() { return "Save Stack Template As..."; } @Override public void run() { FileDialog dialog = new FileDialog(Display.getCurrent().getActiveShell(), SWT.SAVE); dialog.setFilterPath(ResourcesPlugin.getWorkspace().getRoot().getLocation().toFile().getAbsolutePath()); final String path = dialog.open(); if (path != null) { new Job("Downloading stack template") { protected IStatus run(final IProgressMonitor monitor) { try { AmazonCloudFormation cloudFormationClient = AwsToolkitCore.getClientFactory() .getCloudFormationClient(); GetTemplateResult template = cloudFormationClient .getTemplate(new GetTemplateRequest().withStackName(stack.getName())); String formattedText = template.getTemplateBody(); try { formattedText = JsonFormatter.format(template.getTemplateBody()); } catch (Exception e) { AwsToolkitCore.getDefault().logException("Unable to format template", e); } FileUtils.writeStringToFile(new File(path), formattedText); String workspaceAbsolutePath = ResourcesPlugin.getWorkspace().getRoot().getLocation() .toFile().getAbsolutePath(); if (path.startsWith(workspaceAbsolutePath)) { final String relPath = path.substring(workspaceAbsolutePath.length()); ResourcesPlugin.getWorkspace().getRoot().getFile(new Path(relPath)).refreshLocal(1, monitor); } } catch (Exception e) { AwsToolkitCore.getDefault().logException("Couldn't save cloud formation template", e); return new Status(Status.ERROR, CloudFormationPlugin.PLUGIN_ID, "Couldn't save cloud formation template:", e); } return Status.OK_STATUS; } }.schedule(); } } } }