Java tutorial
/******************************************************************************* * Copyright (c) 2010, 2013 Oracle. All rights reserved. * This program and the accompanying materials are made available under the * terms of the Eclipse Public License v1.0, which accompanies this distribution * and is available at http://www.eclipse.org/legal/epl-v10.html. * * Contributors: * Oracle - initial API and implementation ******************************************************************************/ package org.eclipse.jpt.jaxb.ui.internal.wizards.schemagen; import static org.eclipse.jpt.common.core.internal.operations.JptFileCreationDataModelProperties.*; import static org.eclipse.jpt.jaxb.ui.internal.wizards.schemagen.SchemaGeneratorWizard.XSD_EXTENSION; import java.io.File; import org.eclipse.core.resources.IProject; import org.eclipse.core.resources.IResource; import org.eclipse.core.resources.ResourcesPlugin; import org.eclipse.core.runtime.IPath; import org.eclipse.jdt.core.IJavaElement; import org.eclipse.jface.dialogs.IMessageProvider; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.jpt.common.core.internal.utility.ProjectTools; import org.eclipse.jpt.common.utility.internal.StringTools; import org.eclipse.jpt.common.utility.internal.io.FileTools; import org.eclipse.jpt.jaxb.ui.JptJaxbUiMessages; import org.eclipse.swt.widgets.Composite; import org.eclipse.ui.dialogs.WizardNewFileCreationPage; import org.eclipse.ui.internal.ide.IDEWorkbenchMessages; import org.eclipse.wst.common.frameworks.datamodel.IDataModel; /** * NewSchemaFileWizardPage */ public class NewSchemaFileWizardPage extends WizardNewFileCreationPage { protected IDataModel dataModel; private IStructuredSelection initialSelection; static public String DEFAULT_SCHEMA_NAME = "NewXMLSchema" + XSD_EXTENSION; //$NON-NLS-1$ // ********** constructor ********** public NewSchemaFileWizardPage(String pageName, IStructuredSelection selection, IDataModel dataModel, String title, String description) { super(pageName, selection); this.initialSelection = selection; this.init(dataModel); this.setTitle(title); this.setDescription(description); } protected void init(IDataModel dataModel) { this.dataModel = dataModel; IProject project = this.getProjectFromInitialSelection(); this.dataModel.setProperty(PROJECT, project); IPath containerPath = (IPath) this.dataModel.getProperty(CONTAINER_PATH); if (containerPath != null) { this.setContainerFullPath(containerPath); } } // ********** IDialogPage implementation ********** @Override public void createControl(Composite parent) { super.createControl(parent); this.setAllowExistingResources(true); this.setFileName(DEFAULT_SCHEMA_NAME); } // ********** intra-wizard methods ********** public IProject getProject() { return (IProject) this.dataModel.getProperty(PROJECT); } /** * @return the path of the schema file relative to the project */ public IPath getFileRelativePath() { IPath filePath = this.getContainerFullPath(); String projectName = filePath.segment(0); if (this.getProject().getName().equals(projectName)) { filePath = filePath.removeFirstSegments(1); } return filePath; } // ********** validation ********** @Override protected boolean validatePage() { this.dataModel.setProperty(PROJECT, this.getProjectNamed(this.getContainerName())); this.dataModel.setProperty(CONTAINER_PATH, this.getContainerFullPath()); this.dataModel.setProperty(FILE_NAME, this.getFileName()); boolean valid = super.validatePage(); if (!valid) { return valid; } this.overrideFileExistsWarning(); //TODO move this validation to the dataModel - see NewJptFileWizardPage // Validate Project valid = ProjectTools.isJavaProject(this.getProject()); if (!valid) { this.setErrorMessage(JptJaxbUiMessages.NEW_SCHEMA_FILE_WIZARD_PAGE_ERROR_NOT_JAVA_PROJECT); return valid; } // Validate XSD file not exists. valid = this.xsdFileNotExists(); if (!valid) { this.setMessage(JptJaxbUiMessages.NEW_SCHEMA_FILE_WIZARD_PAGE_OVERWRITE_EXISTING_SCHEMAS, IMessageProvider.WARNING); return true; } this.setErrorMessage(null); return valid; } // ********** internal methods ********** private IProject getProjectFromInitialSelection() { Object firstElement = initialSelection.getFirstElement(); if (firstElement instanceof IProject) { return (IProject) firstElement; } else if (firstElement instanceof IResource) { return ((IResource) firstElement).getProject(); } else if (firstElement instanceof IJavaElement) { return ((IJavaElement) firstElement).getJavaProject().getProject(); } return null; } private IProject getProjectNamed(String projectName) { if (StringTools.isBlank(projectName)) { return null; } return ResourcesPlugin.getWorkspace().getRoot().getProject(projectName); } private String getContainerName() { IPath containerPath = this.getContainerFullPath(); if (containerPath == null) { return null; } String containerName = containerPath.segment(0); return containerName; } private void overrideFileExistsWarning() { String existsString = IDEWorkbenchMessages.ResourceGroup_nameExists; existsString.toString(); existsString = existsString.substring("''{0}''".length(), existsString.length()); //$NON-NLS-1$ String message = this.getMessage(); if (message != null && message.endsWith(existsString)) { this.setMessage(null); } } private boolean xsdFileNotExists() { return !this.xsdFileExists(this.getContainerAbsolutePath().toFile()); } private boolean xsdFileExists(File directory) { if (directory.listFiles() == null) { throw new RuntimeException("Could not find directory: " + directory); //$NON-NLS-1$ } for (File file : directory.listFiles()) { if (file.isDirectory()) { continue; } else if (XSD_EXTENSION.equalsIgnoreCase(FileTools.extension(file))) { return true; } } return false; } private IPath getContainerAbsolutePath() { IPath projectRelativePath = this.getContainerFullPath().makeRelativeTo(this.getProject().getFullPath()); IResource directory = (projectRelativePath.isEmpty()) ? this.getProject() : this.getProject().getFile(projectRelativePath); return directory.getLocation(); } }