重构eclipse的新建Java类向页

标签：des   style   blog   http   java   os   io   2014   

插件项目中做一个弹出框通过类名包名新建Java类，就重构了下eclipse 新建Java向导类。

随便修改了下：

弹出代码：

	CustomNewClassCreationWizard wizard = new CustomNewClassCreationWizard();
			wizard.init(PlatformUI.getWorkbench(), wizard.getSelection());
			wizard.setForcePreviousAndNextButtons(true);
			MyWizardDialog.createAndOpenDialog(Display.getDefault().getActiveShell(),wizard);

package com.sunsheen.jfids.studio.composite.dialog.JavaClassDIalog;

import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.jdt.core.IJavaElement;
import org.eclipse.jdt.internal.ui.JavaPlugin;
import org.eclipse.jdt.internal.ui.JavaPluginImages;
import org.eclipse.jdt.internal.ui.wizards.NewElementWizard;
import org.eclipse.jdt.internal.ui.wizards.NewWizardMessages;
import org.eclipse.jdt.ui.wizards.NewClassWizardPage;
/***
 * 
 * 重写Java创建向导
 * @author minner
 *
 */
public class CustomNewClassCreationWizard  extends NewElementWizard{
	private CustomNewClassWizardPage fPage;
    private boolean fOpenEditorOnFinish;

	public CustomNewClassCreationWizard(CustomNewClassWizardPage page, boolean openEditorOnFinish) {
		setDefaultPageImageDescriptor(JavaPluginImages.DESC_WIZBAN_NEWCLASS);
		setDialogSettings(JavaPlugin.getDefault().getDialogSettings());
		setWindowTitle("新建一个关联服务类");
		fPage= page;
		fOpenEditorOnFinish= openEditorOnFinish;
	}

	public CustomNewClassCreationWizard() {
		this(null, true);
	}

	/*
	 * @see Wizard#createPages
	 */
	@Override
	public void addPages() {
		super.addPages();
		if (fPage == null) {
			fPage= new CustomNewClassWizardPage();
			fPage.init(getSelection());
		}
		addPage(fPage);
	}

	/*(non-Javadoc)
	 * @see org.eclipse.jdt.internal.ui.wizards.NewElementWizard#canRunForked()
	 */
	@Override
	protected boolean canRunForked() {
		return !fPage.isEnclosingTypeSelected();
	}

	/* (non-Javadoc)
	 * @see org.eclipse.jdt.internal.ui.wizards.NewElementWizard#finishPage(org.eclipse.core.runtime.IProgressMonitor)
	 */
	@Override
	protected void finishPage(IProgressMonitor monitor) throws InterruptedException, CoreException {
		fPage.createType(monitor); // use the full progress monitor
	}

	/* (non-Javadoc)
	 * @see org.eclipse.jface.wizard.IWizard#performFinish()
	 */
	@Override
	public boolean performFinish() {
		warnAboutTypeCommentDeprecation();
		boolean res= super.performFinish();
		if (res) {
			IResource resource= fPage.getModifiedResource();
			if (resource != null) {
				selectAndReveal(resource);
				if (fOpenEditorOnFinish) {
					openResource((IFile) resource);
				}
			}
		}
		return res;
	}

	/* (non-Javadoc)
	 * @see org.eclipse.jdt.internal.ui.wizards.NewElementWizard#getCreatedElement()
	 */
	@Override
	public IJavaElement getCreatedElement() {
		return fPage.getCreatedType();
	}

}

/*******************************************************************************
 * Copyright (c) 2000, 2011 IBM Corporation and others.
 * 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:
 *     IBM Corporation - initial API and implementation
 *     John Kaplan, johnkaplantech@gmail.com - 108071 [code templates] template for body of newly created class
 *******************************************************************************/
package com.sunsheen.jfids.studio.composite.dialog.JavaClassDIalog;

import java.lang.reflect.InvocationTargetException;
import java.net.URI;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Set;

import org.eclipse.swt.SWT;
import org.eclipse.swt.events.KeyAdapter;
import org.eclipse.swt.events.KeyEvent;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.graphics.Image;
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.Item;
import org.eclipse.swt.widgets.Link;
import org.eclipse.swt.widgets.Text;

import org.eclipse.core.filesystem.EFS;
import org.eclipse.core.filesystem.IFileStore;

import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.NullProgressMonitor;
import org.eclipse.core.runtime.SubProgressMonitor;

import org.eclipse.core.resources.IResource;
import org.eclipse.core.resources.ResourcesPlugin;

import org.eclipse.text.edits.TextEdit;

import org.eclipse.jface.contentassist.SubjectControlContentAssistant;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.dialogs.IDialogSettings;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.operation.IRunnableWithProgress;
import org.eclipse.jface.preference.PreferenceDialog;
import org.eclipse.jface.viewers.CellEditor;
import org.eclipse.jface.viewers.ICellModifier;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.jface.window.Window;

import org.eclipse.jface.text.BadLocationException;
import org.eclipse.jface.text.ITextSelection;
import org.eclipse.jface.text.templates.Template;
import org.eclipse.jface.text.templates.TemplateException;

import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.contentassist.ContentAssistHandler;
import org.eclipse.ui.dialogs.ElementListSelectionDialog;
import org.eclipse.ui.dialogs.PreferencesUtil;

import org.eclipse.jdt.core.Flags;
import org.eclipse.jdt.core.IBuffer;
import org.eclipse.jdt.core.ICompilationUnit;
import org.eclipse.jdt.core.IField;
import org.eclipse.jdt.core.IJavaElement;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.core.IMethod;
import org.eclipse.jdt.core.IPackageFragment;
import org.eclipse.jdt.core.IPackageFragmentRoot;
import org.eclipse.jdt.core.ISourceRange;
import org.eclipse.jdt.core.IType;
import org.eclipse.jdt.core.JavaConventions;
import org.eclipse.jdt.core.JavaCore;
import org.eclipse.jdt.core.JavaModelException;
import org.eclipse.jdt.core.Signature;
import org.eclipse.jdt.core.ToolFactory;
import org.eclipse.jdt.core.compiler.IProblem;
import org.eclipse.jdt.core.compiler.IScanner;
import org.eclipse.jdt.core.compiler.ITerminalSymbols;
import org.eclipse.jdt.core.compiler.InvalidInputException;
import org.eclipse.jdt.core.dom.ASTNode;
import org.eclipse.jdt.core.dom.ASTParser;
import org.eclipse.jdt.core.dom.AbstractTypeDeclaration;
import org.eclipse.jdt.core.dom.CompilationUnit;
import org.eclipse.jdt.core.dom.ITypeBinding;
import org.eclipse.jdt.core.dom.ImportDeclaration;
import org.eclipse.jdt.core.dom.ParameterizedType;
import org.eclipse.jdt.core.dom.Type;
import org.eclipse.jdt.core.dom.rewrite.ImportRewrite;
import org.eclipse.jdt.core.formatter.CodeFormatter;
import org.eclipse.jdt.core.search.IJavaSearchConstants;
import org.eclipse.jdt.core.search.IJavaSearchScope;
import org.eclipse.jdt.core.search.SearchEngine;

import org.eclipse.jdt.internal.corext.codemanipulation.AddUnimplementedConstructorsOperation;
import org.eclipse.jdt.internal.corext.codemanipulation.AddUnimplementedMethodsOperation;
import org.eclipse.jdt.internal.corext.codemanipulation.CodeGenerationSettings;
import org.eclipse.jdt.internal.corext.codemanipulation.StubUtility;
import org.eclipse.jdt.internal.corext.dom.ASTNodes;
import org.eclipse.jdt.internal.corext.dom.TokenScanner;
import org.eclipse.jdt.internal.corext.refactoring.StubTypeContext;
import org.eclipse.jdt.internal.corext.refactoring.TypeContextChecker;
import org.eclipse.jdt.internal.corext.template.java.JavaContext;
import org.eclipse.jdt.internal.corext.util.CodeFormatterUtil;
import org.eclipse.jdt.internal.corext.util.JavaConventionsUtil;
import org.eclipse.jdt.internal.corext.util.JavaModelUtil;
import org.eclipse.jdt.internal.corext.util.Messages;
import org.eclipse.jdt.internal.corext.util.Resources;
import org.eclipse.jdt.internal.corext.util.Strings;

import org.eclipse.jdt.ui.CodeGeneration;
import org.eclipse.jdt.ui.JavaElementLabelProvider;
import org.eclipse.jdt.ui.wizards.NewContainerWizardPage;
import org.eclipse.jdt.ui.wizards.NewTypeWizardPage;
import org.eclipse.jdt.ui.wizards.NewTypeWizardPage.ImportsManager;

import org.eclipse.jdt.internal.ui.IJavaHelpContextIds;
import org.eclipse.jdt.internal.ui.JavaPlugin;
import org.eclipse.jdt.internal.ui.JavaPluginImages;
import org.eclipse.jdt.internal.ui.dialogs.FilteredTypesSelectionDialog;
import org.eclipse.jdt.internal.ui.dialogs.StatusInfo;
import org.eclipse.jdt.internal.ui.dialogs.TableTextCellEditor;
import org.eclipse.jdt.internal.ui.dialogs.TextFieldNavigationHandler;
import org.eclipse.jdt.internal.ui.javaeditor.ASTProvider;
import org.eclipse.jdt.internal.ui.preferences.CodeTemplatePreferencePage;
import org.eclipse.jdt.internal.ui.preferences.JavaPreferencesSettings;
import org.eclipse.jdt.internal.ui.refactoring.contentassist.CompletionContextRequestor;
import org.eclipse.jdt.internal.ui.refactoring.contentassist.ControlContentAssistHelper;
import org.eclipse.jdt.internal.ui.refactoring.contentassist.JavaPackageCompletionProcessor;
import org.eclipse.jdt.internal.ui.refactoring.contentassist.JavaTypeCompletionProcessor;
import org.eclipse.jdt.internal.ui.util.SWTUtil;
import org.eclipse.jdt.internal.ui.viewsupport.BasicElementLabels;
import org.eclipse.jdt.internal.ui.wizards.NewWizardMessages;
import org.eclipse.jdt.internal.ui.wizards.SuperInterfaceSelectionDialog;
import org.eclipse.jdt.internal.ui.wizards.dialogfields.DialogField;
import org.eclipse.jdt.internal.ui.wizards.dialogfields.IDialogFieldListener;
import org.eclipse.jdt.internal.ui.wizards.dialogfields.IListAdapter;
import org.eclipse.jdt.internal.ui.wizards.dialogfields.IStringButtonAdapter;
import org.eclipse.jdt.internal.ui.wizards.dialogfields.LayoutUtil;
import org.eclipse.jdt.internal.ui.wizards.dialogfields.ListDialogField;
import org.eclipse.jdt.internal.ui.wizards.dialogfields.SelectionButtonDialogField;
import org.eclipse.jdt.internal.ui.wizards.dialogfields.SelectionButtonDialogFieldGroup;
import org.eclipse.jdt.internal.ui.wizards.dialogfields.Separator;
import org.eclipse.jdt.internal.ui.wizards.dialogfields.StringButtonDialogField;
import org.eclipse.jdt.internal.ui.wizards.dialogfields.StringButtonStatusDialogField;
import org.eclipse.jdt.internal.ui.wizards.dialogfields.StringDialogField;

/**
 * 重写新建类向导
 * The class <code>NewTypeWizardPage</code> contains controls and validation routines
 * for a 'New Type WizardPage'. Implementors decide which components to add and to enable.
 * Implementors can also customize the validation code. <code>NewTypeWizardPage</code>
 * is intended to serve as base class of all wizards that create types like applets, servlets, classes,
 * interfaces, etc.
 * <p>
 * See {@link NewClassWizardPage} or {@link NewInterfaceWizardPage} for an
 * example usage of the <code>NewTypeWizardPage</code>.
 * </p>
 *
 * @see org.eclipse.jdt.ui.wizards.NewClassWizardPage
 * @see org.eclipse.jdt.ui.wizards.NewInterfaceWizardPage
 * @see org.eclipse.jdt.ui.wizards.NewEnumWizardPage
 * @see org.eclipse.jdt.ui.wizards.NewAnnotationWizardPage
 *
 * @since 2.0
 */
public   class CustomNewClassWizardPage extends NewTypeWizardPage {

	private final static String PAGE_NAME= "NewClassWizardPage"; //$NON-NLS-1$

	private final static String SETTINGS_CREATEMAIN= "create_main"; //$NON-NLS-1$
	private final static String SETTINGS_CREATECONSTR= "create_constructor"; //$NON-NLS-1$
	private final static String SETTINGS_CREATEUNIMPLEMENTED= "create_unimplemented"; //$NON-NLS-1$

	private SelectionButtonDialogFieldGroup fMethodStubsButtons;

	/**
	 * Creates a new <code>NewClassWizardPage</code>
	 */
	public CustomNewClassWizardPage() {
		super(true, PAGE_NAME);

		setTitle(NewWizardMessages.NewClassWizardPage_title);
		setDescription(NewWizardMessages.NewClassWizardPage_description);

		String[] buttonNames3= new String[] {
			NewWizardMessages.NewClassWizardPage_methods_main, NewWizardMessages.NewClassWizardPage_methods_constructors,
			NewWizardMessages.NewClassWizardPage_methods_inherited
		};
		fMethodStubsButtons= new SelectionButtonDialogFieldGroup(SWT.CHECK, buttonNames3, 1);
		fMethodStubsButtons.setLabelText(NewWizardMessages.NewClassWizardPage_methods_label);
	}

	// -------- Initialization ---------

	/**
	 * The wizard owning this page is responsible for calling this method with the
	 * current selection. The selection is used to initialize the fields of the wizard
	 * page.
	 *
	 * @param selection used to initialize the fields
	 */
	public void init(IStructuredSelection selection) {
		IJavaElement jelem= getInitialJavaElement(selection);
		initContainerPage(jelem);
		initTypePage(jelem);
		doStatusUpdate();

		boolean createMain= false;
		boolean createConstructors= false;
		boolean createUnimplemented= true;
		IDialogSettings dialogSettings= getDialogSettings();
		if (dialogSettings != null) {
			IDialogSettings section= dialogSettings.getSection(PAGE_NAME);
			if (section != null) {
				createMain= section.getBoolean(SETTINGS_CREATEMAIN);
				createConstructors= section.getBoolean(SETTINGS_CREATECONSTR);
				createUnimplemented= section.getBoolean(SETTINGS_CREATEUNIMPLEMENTED);
			}
		}

		setMethodStubSelection(createMain, createConstructors, createUnimplemented, true);
	}

	// ------ validation --------
	private void doStatusUpdate() {
		// status of all used components
		IStatus[] status= new IStatus[] {
			fContainerStatus,
			isEnclosingTypeSelected() ? fEnclosingTypeStatus : fPackageStatus,
			fTypeNameStatus,
			fModifierStatus,
			fSuperClassStatus,
			fSuperInterfacesStatus
		};

		// the mode severe status will be displayed and the OK button enabled/disabled.
		updateStatus(status);
	}


	/*
	 * @see NewContainerWizardPage#handleFieldChanged
	 */
	@Override
	protected void handleFieldChanged(String fieldName) {
		super.handleFieldChanged(fieldName);

		doStatusUpdate();
	}


	// ------ UI --------

	/*
	 * @see WizardPage#createControl
	 */
	public void createControl(Composite parent) {
		initializeDialogUnits(parent);

		Composite composite= new Composite(parent, SWT.NONE);
		composite.setFont(parent.getFont());

		int nColumns= 4;

		GridLayout layout= new GridLayout();
		layout.numColumns= nColumns;
		composite.setLayout(layout);

		// pick & choose the wanted UI components

		createContainerControls(composite, nColumns);
		createPackageControls(composite, nColumns);
//		createEnclosingTypeControls(composite, nColumns);

		createSeparator(composite, nColumns);

		createTypeNameControls(composite, nColumns);
//		createModifierControls(composite, nColumns);

//		createSuperClassControls(composite, nColumns);
		createSuperInterfacesControls(composite, nColumns);

//		createMethodStubSelectionControls(composite, nColumns);
//
//		createCommentControls(composite, nColumns);
//		enableCommentControl(true);

		setControl(composite);

		Dialog.applyDialogFont(composite);
		PlatformUI.getWorkbench().getHelpSystem().setHelp(composite, IJavaHelpContextIds.NEW_CLASS_WIZARD_PAGE);
	}

	/*
	 * @see WizardPage#becomesVisible
	 */
	@Override
	public void setVisible(boolean visible) {
		super.setVisible(visible);
		if (visible) {
			setFocus();
		} else {
			IDialogSettings dialogSettings= getDialogSettings();
			if (dialogSettings != null) {
				IDialogSettings section= dialogSettings.getSection(PAGE_NAME);
				if (section == null) {
					section= dialogSettings.addNewSection(PAGE_NAME);
				}
				section.put(SETTINGS_CREATEMAIN, isCreateMain());
				section.put(SETTINGS_CREATECONSTR, isCreateConstructors());
				section.put(SETTINGS_CREATEUNIMPLEMENTED, isCreateInherited());
			}
		}
	}

	private void createMethodStubSelectionControls(Composite composite, int nColumns) {
		Control labelControl= fMethodStubsButtons.getLabelControl(composite);
		LayoutUtil.setHorizontalSpan(labelControl, nColumns);

		DialogField.createEmptySpace(composite);

		Control buttonGroup= fMethodStubsButtons.getSelectionButtonsGroup(composite);
		LayoutUtil.setHorizontalSpan(buttonGroup, nColumns - 1);
	}

	/**
	 * Returns the current selection state of the 'Create Main' checkbox.
	 *
	 * @return the selection state of the 'Create Main' checkbox
	 */
	public boolean isCreateMain() {
		return fMethodStubsButtons.isSelected(0);
	}

	/**
	 * Returns the current selection state of the 'Create Constructors' checkbox.
	 *
	 * @return the selection state of the 'Create Constructors' checkbox
	 */
	public boolean isCreateConstructors() {
		return fMethodStubsButtons.isSelected(1);
	}

	/**
	 * Returns the current selection state of the 'Create inherited abstract methods'
	 * checkbox.
	 *
	 * @return the selection state of the 'Create inherited abstract methods' checkbox
	 */
	public boolean isCreateInherited() {
		return fMethodStubsButtons.isSelected(2);
	}

	/**
	 * Sets the selection state of the method stub checkboxes.
	 *
	 * @param createMain initial selection state of the 'Create Main' checkbox.
	 * @param createConstructors initial selection state of the 'Create Constructors' checkbox.
	 * @param createInherited initial selection state of the 'Create inherited abstract methods' checkbox.
	 * @param canBeModified if <code>true</code> the method stub checkboxes can be changed by
	 * the user. If <code>false</code> the buttons are "read-only"
	 */
	public void setMethodStubSelection(boolean createMain, boolean createConstructors, boolean createInherited, boolean canBeModified) {
		fMethodStubsButtons.setSelection(0, createMain);
		fMethodStubsButtons.setSelection(1, createConstructors);
		fMethodStubsButtons.setSelection(2, createInherited);

		fMethodStubsButtons.setEnabled(canBeModified);
	}

	// ---- creation ----------------

	/*
	 * @see NewTypeWizardPage#createTypeMembers
	 */
	@Override
	protected void createTypeMembers(IType type, ImportsManager imports, IProgressMonitor monitor) throws CoreException {
		boolean doMain= isCreateMain();
		boolean doConstr= isCreateConstructors();
		boolean doInherited= isCreateInherited();
		createInheritedMethods(type, doConstr, doInherited, imports, new SubProgressMonitor(monitor, 1));

		if (doMain) {
			StringBuffer buf= new StringBuffer();
			final String lineDelim= "\n"; // OK, since content is formatted afterwards //$NON-NLS-1$
			String comment= CodeGeneration.getMethodComment(type.getCompilationUnit(), type.getTypeQualifiedName('.'), "main", new String[] {"args"}, new String[0], Signature.createTypeSignature("void", true), null, lineDelim); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
			if (comment != null) {
				buf.append(comment);
				buf.append(lineDelim);
			}
			buf.append("public static void main("); //$NON-NLS-1$
			buf.append(imports.addImport("java.lang.String")); //$NON-NLS-1$
			buf.append("[] args) {"); //$NON-NLS-1$
			buf.append(lineDelim);
			final String content= CodeGeneration.getMethodBodyContent(type.getCompilationUnit(), type.getTypeQualifiedName('.'), "main", false, "", lineDelim); //$NON-NLS-1$ //$NON-NLS-2$
			if (content != null && content.length() != 0)
				buf.append(content);
			buf.append(lineDelim);
			buf.append("}"); //$NON-NLS-1$
			type.createMethod(buf.toString(), null, false, null);
		}

		if (monitor != null) {
			monitor.done();
		}
	}

}

这里还想做一个操作，将接口实现一个指定的类，并且不可move。

找到这个类的

	/*
	 * @see WizardPage#createControl
	 */
	public void createControl(Composite parent) {

这个方法，顾名思义，则是一个创建组件的地方

看到里面的 createSuperInterfacesControls(composite, nColumns);

这个方法，这就是如何创建父接口的地方啦。

跟进去..

重构eclipse的新建Java类向页,布布扣,bubuko.com

重构eclipse的新建Java类向页

标签：des   style   blog   http   java   os   io   2014   

原文地址：http://blog.csdn.net/wm198966/article/details/38082797