Java tutorial
/* * Copyright 2010-2012 Amazon.com, Inc. or its affiliates. All Rights Reserved. * * Licensed under the Apache License, Version 2.0 (the "License"). * You may not use this file except in compliance with the License. * A copy of the License is located at * * http://aws.amazon.com/apache2.0 * * or in the "license" file accompanying this file. 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.sdk.ui.wizard; import java.io.File; import java.io.IOException; import java.io.PrintStream; import java.util.regex.Pattern; import org.apache.commons.io.FileUtils; import org.eclipse.core.filesystem.EFS; import org.eclipse.core.filesystem.IFileStore; import org.eclipse.core.resources.IProject; import org.eclipse.core.resources.IResource; import org.eclipse.core.runtime.CoreException; import org.eclipse.core.runtime.IPath; import org.eclipse.core.runtime.IProgressMonitor; import org.eclipse.jdt.core.IJavaElement; import org.eclipse.jdt.core.IJavaProject; import org.eclipse.jdt.internal.ui.JavaPlugin; import org.eclipse.jdt.internal.ui.packageview.PackageExplorerPart; import org.eclipse.jdt.internal.ui.wizards.NewElementWizard; import org.eclipse.jdt.ui.IPackagesViewPart; import org.eclipse.swt.widgets.Display; import org.eclipse.ui.INewWizard; import org.eclipse.ui.IWorkbenchPage; import org.eclipse.ui.IWorkbenchPart; import org.eclipse.ui.IWorkbenchWindow; import org.eclipse.ui.PlatformUI; import com.amazonaws.eclipse.core.AccountInfo; import com.amazonaws.eclipse.core.AwsToolkitCore; import com.amazonaws.eclipse.core.preferences.PreferenceConstants; import com.amazonaws.eclipse.sdk.ui.FilenameFilters; import com.amazonaws.eclipse.sdk.ui.JavaSdkManager; import com.amazonaws.eclipse.sdk.ui.SdkSample; import com.amazonaws.eclipse.sdk.ui.classpath.AwsSdkClasspathUtils; /** * A Project Wizard for creating a new Java project configured to build against the * AWS SDK for Java. */ public class NewAwsJavaProjectWizard extends NewElementWizard implements INewWizard { private boolean awsSdkInstalled = true; private NewAwsJavaProjectWizardPageOne pageOne; private NewAwsJavaProjectWizardPageTwo pageTwo; /** * @see org.eclipse.jface.wizard.Wizard#addPages() */ @Override public void addPages() { awsSdkInstalled = true; JavaSdkManager sdk = JavaSdkManager.getInstance(); if (sdk.getDefaultSdkInstall() == null && sdk.getInstallationJob() == null) { awsSdkInstalled = false; addPage(new AwsJavaSdkNotInstalledWizardPage()); } else { if (pageOne == null) pageOne = new NewAwsJavaProjectWizardPageOne(); addPage(pageOne); if (pageTwo == null) pageTwo = new NewAwsJavaProjectWizardPageTwo(pageOne); addPage(pageTwo); pageOne.init(getSelection(), getActivePart()); } } public NewAwsJavaProjectWizard() { this(null, null); } public NewAwsJavaProjectWizard(NewAwsJavaProjectWizardPageOne pageOne, NewAwsJavaProjectWizardPageTwo pageTwo) { setDialogSettings(JavaPlugin.getDefault().getDialogSettings()); setWindowTitle("New AWS Java Project"); setDefaultPageImageDescriptor( AwsToolkitCore.getDefault().getImageRegistry().getDescriptor(AwsToolkitCore.IMAGE_AWS_LOGO)); } /** * @see org.eclipse.jdt.internal.ui.wizards.NewElementWizard#finishPage(org.eclipse.core.runtime.IProgressMonitor) */ @Override protected void finishPage(IProgressMonitor monitor) throws InterruptedException, CoreException { // Click "OK" to download the SDK if (!awsSdkInstalled) { JavaSdkManager.getInstance().initializeSDKInstalls(); return; } pageTwo.performFinish(monitor); monitor.setTaskName("Configuring AWS Java project"); Display.getDefault().syncExec(new Runnable() { public void run() { configureNewProject(); } }); } private void configureNewProject() { final IJavaProject javaProject = pageTwo.getJavaProject(); selectAndReveal(javaProject.getProject()); IWorkbenchPart activePart = getActivePart(); if (activePart instanceof IPackagesViewPart) { PackageExplorerPart view = PackageExplorerPart.openInActivePerspective(); view.tryToReveal(javaProject); } addAwsSdkToProject(); try { addSamplesToProject(); } catch (IOException e) { logError("Unable to add sample source code to the project.", e); } catch (CoreException e) { logError("Unable to add sample source code to the project.", e); } try { if (pageOne.getSelectedAccount() == null) { copyEmptyCredentialsFileToProject(); } } catch (CoreException e) { logError("Unable to add sthe credentials file to the project.", e); } // Finally, refresh the project so that the new files show up try { pageTwo.getJavaProject().getProject().refreshLocal(IResource.DEPTH_INFINITE, null); } catch (CoreException e) { logError("Unable to refresh the created project.", e); } } /** * @see org.eclipse.jdt.internal.ui.wizards.NewElementWizard#getCreatedElement() */ @Override public IJavaElement getCreatedElement() { return pageTwo.getJavaProject(); } /* * Private Interface */ private void addAwsSdkToProject() { IJavaProject javaProject = pageTwo.getJavaProject(); // TODO: What about error handling... should we propagate it up higher? AwsSdkClasspathUtils.addAwsSdkToProjectClasspath(javaProject, pageOne.getSelectedSdkInstall()); } private void addSamplesToProject() throws CoreException, IOException { IProject project = pageTwo.getJavaProject().getProject(); IPath workspaceRoot = project.getWorkspace().getRoot().getRawLocation(); IPath srcPath = workspaceRoot.append(project.getFullPath()).append("src"); AccountInfo selectedAccount = pageOne.getSelectedAccount(); for (SdkSample sample : pageOne.getSelectedSamples()) { for (File sampleSourceFile : sample.getPath().toFile() .listFiles(new FilenameFilters.JavaSourceFilenameFilter())) { String sampleContent = FileUtils.readFileToString(sampleSourceFile); if (selectedAccount != null) { sampleContent = updateSampleContentWithConfiguredProfile(sampleContent, selectedAccount); } IFileStore projectSourceFolderDestination = EFS.getLocalFileSystem() .fromLocalFile(srcPath.append(sampleSourceFile.getName()).toFile()); PrintStream ps = new PrintStream( projectSourceFolderDestination.openOutputStream(EFS.OVERWRITE, null)); ps.print(sampleContent); ps.close(); } } } /** * Copy the empty credentials file from the SDK sample to the created * project. */ private void copyEmptyCredentialsFileToProject() throws CoreException { IProject project = pageTwo.getJavaProject().getProject(); IPath workspaceRoot = project.getWorkspace().getRoot().getRawLocation(); IPath srcPath = workspaceRoot.append(project.getFullPath()).append("src"); for (SdkSample sample : pageOne.getSelectedSamples()) { for (File sampleSourceFile : sample.getPath().toFile() .listFiles(new FilenameFilters.CredentialsFilenameFilter())) { IFileStore projectSourceFolderDestination = EFS.getLocalFileSystem() .fromLocalFile(srcPath.append(sampleSourceFile.getName()).toFile()); EFS.getLocalFileSystem().fromLocalFile(sampleSourceFile).copy(projectSourceFolderDestination, EFS.OVERWRITE, null); } } } private static String updateSampleContentWithConfiguredProfile(String sampleContent, final AccountInfo selectedAccount) { final String credFileLocation = AwsToolkitCore.getDefault().getPreferenceStore() .getString(PreferenceConstants.P_CREDENTIAL_PROFILE_FILE_LOCATION); String paramString; if (AwsToolkitCore.getDefault().getPreferenceStore() .isDefault(PreferenceConstants.P_CREDENTIAL_PROFILE_FILE_LOCATION)) { // Don't need to specify the file location paramString = String.format("\"%s\"", selectedAccount.getAccountName()); } else { paramString = String.format("\"%s\", \"%s\"", credFileLocation, selectedAccount.getAccountName()); } // Change the parameter of the ProfileCredentialsProvider sampleContent = sampleContent.replace("new ProfileCredentialsProvider().getCredentials();", String .format("new ProfileCredentialsProvider(%s).getCredentials();", escapeBackSlashes(paramString))); // Remove the block of comment between "Before running the code" and "WARNING" String COMMNET_TO_REMOVE_REGEX = "(Before running the code:.*?)?Fill in your AWS access credentials.*?(?=WANRNING:)"; sampleContent = Pattern.compile(COMMNET_TO_REMOVE_REGEX, Pattern.DOTALL) // dot should match newline .matcher(sampleContent).replaceAll(""); // [default] ==> [selected-profile-name] sampleContent = sampleContent.replace("[default]", String.format("[%s]", selectedAccount.getAccountName())); // (~/.aws/credentials) ==> (user-specified preference store value) sampleContent = sampleContent.replace("(~/.aws/credentials)", String.format("(%s)", escapeBackSlashes(credFileLocation))); return sampleContent; } private IWorkbenchPart getActivePart() { IWorkbenchWindow activeWindow = PlatformUI.getWorkbench().getActiveWorkbenchWindow(); if (activeWindow != null) { IWorkbenchPage activePage = activeWindow.getActivePage(); if (activePage != null) { return activePage.getActivePart(); } } return null; } @Override public boolean performCancel() { if (!awsSdkInstalled) { return true; } pageTwo.performCancel(); return super.performCancel(); } private void logError(String errMsg, Throwable t) { AwsToolkitCore.getDefault().logException(errMsg, t); } private static String escapeBackSlashes(String str) { return str.replace("\\", "\\\\"); } }