case-study/jdt-before/ui refactoring/org/eclipse/jdt/internal/ui/refactoring/reorg/NewNameQueries.java

   1 /*******************************************************************************
   2  * Copyright (c) 2000, 2011 IBM Corporation and others.
   3  * All rights reserved. This program and the accompanying materials
   4  * are made available under the terms of the Eclipse Public License v1.0
   5  * which accompanies this distribution, and is available at
   6  * http://www.eclipse.org/legal/epl-v10.html
   7  *
   8  * Contributors:
   9  *     IBM Corporation - initial API and implementation
  10  *******************************************************************************/
  11 package org.eclipse.jdt.internal.ui.refactoring.reorg;
  12
  13 import org.eclipse.swt.widgets.Composite;
  14 import org.eclipse.swt.widgets.Control;
  15 import org.eclipse.swt.widgets.Shell;
  16
  17 import org.eclipse.core.runtime.Assert;
  18 import org.eclipse.core.runtime.CoreException;
  19 import org.eclipse.core.runtime.IStatus;
  20 import org.eclipse.core.runtime.OperationCanceledException;
  21
  22 import org.eclipse.core.resources.IResource;
  23
  24 import org.eclipse.jface.dialogs.IInputValidator;
  25 import org.eclipse.jface.dialogs.InputDialog;
  26 import org.eclipse.jface.window.Window;
  27 import org.eclipse.jface.wizard.Wizard;
  28
  29 import org.eclipse.ltk.core.refactoring.RefactoringStatus;
  30
  31 import org.eclipse.jdt.core.ICompilationUnit;
  32 import org.eclipse.jdt.core.IJavaElement;
  33 import org.eclipse.jdt.core.IPackageFragment;
  34 import org.eclipse.jdt.core.IPackageFragmentRoot;
  35 import org.eclipse.jdt.core.JavaCore;
  36
  37 import org.eclipse.jdt.internal.corext.refactoring.Checks;
  38 import org.eclipse.jdt.internal.corext.refactoring.rename.RenamePackageProcessor;
  39 import org.eclipse.jdt.internal.corext.refactoring.reorg.INewNameQueries;
  40 import org.eclipse.jdt.internal.corext.refactoring.reorg.INewNameQuery;
  41 import org.eclipse.jdt.internal.corext.util.JavaConventionsUtil;
  42 import org.eclipse.jdt.internal.corext.util.JavaModelUtil;
  43 import org.eclipse.jdt.internal.corext.util.Messages;
  44
  45 import org.eclipse.jdt.ui.JavaElementLabels;
  46
  47 import org.eclipse.jdt.internal.ui.JavaPlugin;
  48 import org.eclipse.jdt.internal.ui.dialogs.TextFieldNavigationHandler;
  49 import org.eclipse.jdt.internal.ui.viewsupport.BasicElementLabels;
  50
  51 public class NewNameQueries implements INewNameQueries {
  52
  53         private static final String INVALID_NAME_NO_MESSAGE= "";//$NON-NLS-1$
  54         private final Wizard fWizard;
  55         private final Shell fShell;
  56
  57         public NewNameQueries() {
  58                 fShell= null;
  59                 fWizard= null;
  60         }
  61
  62         public NewNameQueries(Wizard wizard) {
  63                 fWizard= wizard;
  64                 fShell= null;
  65         }
  66
  67         public NewNameQueries(Shell shell) {
  68                 fShell = shell;
  69                 fWizard= null;
  70         }
  71
  72         private Shell getShell() {
  73                 Assert.isTrue(fWizard == null || fShell == null);
  74                 if (fWizard != null)
  75                         return fWizard.getContainer().getShell();
  76
  77                 if (fShell != null)
  78                         return fShell;
  79                 return JavaPlugin.getActiveWorkbenchShell();
  80         }
  81
  82         public INewNameQuery createNewCompilationUnitNameQuery(ICompilationUnit cu, String initialSuggestedName) {
  83                 String[] keys= { BasicElementLabels.getJavaElementName(JavaCore.removeJavaLikeExtension(cu.getElementName()))};
  84                 String message= Messages.format(ReorgMessages.ReorgQueries_enterNewNameQuestion, keys);
  85                 return createStaticQuery(createCompilationUnitNameValidator(cu), message, initialSuggestedName, getShell());
  86         }
  87
  88
  89         public INewNameQuery createNewResourceNameQuery(IResource res, String initialSuggestedName) {
  90                 String[] keys= { BasicElementLabels.getResourceName(res)};
  91                 String message= Messages.format(ReorgMessages.ReorgQueries_enterNewNameQuestion, keys);
  92                 return createStaticQuery(createResourceNameValidator(res), message, initialSuggestedName, getShell());
  93         }
  94
  95
  96         public INewNameQuery createNewPackageNameQuery(IPackageFragment pack, String initialSuggestedName) {
  97                 String[] keys= {JavaElementLabels.getElementLabel(pack, JavaElementLabels.ALL_DEFAULT)};
  98                 String message= Messages.format(ReorgMessages.ReorgQueries_enterNewNameQuestion, keys);
  99                 return createStaticQuery(createPackageNameValidator(pack), message, initialSuggestedName, getShell());
 100         }
 101
 102         public INewNameQuery createNewPackageFragmentRootNameQuery(IPackageFragmentRoot root, String initialSuggestedName) {
 103                 String[] keys= {JavaElementLabels.getElementLabel(root, JavaElementLabels.ALL_DEFAULT)};
 104                 String message= Messages.format(ReorgMessages.ReorgQueries_enterNewNameQuestion, keys);
 105                 return createStaticQuery(createPackageFragmentRootNameValidator(root), message, initialSuggestedName, getShell());
 106         }
 107
 108
 109         public INewNameQuery createNullQuery(){
 110                 return createStaticQuery(null);
 111         }
 112
 113
 114         public INewNameQuery createStaticQuery(final String newName){
 115                 return new INewNameQuery(){
 116                         public String getNewName() {
 117                                 return newName;
 118                         }
 119                 };
 120         }
 121
 122         private static INewNameQuery createStaticQuery(final IInputValidator validator, final String message, final String initial, final Shell shell){
 123                 return new INewNameQuery(){
 124                         public String getNewName() throws OperationCanceledException {
 125                                 InputDialog dialog= new InputDialog(shell, ReorgMessages.ReorgQueries_nameConflictMessage, message, initial, validator) {
 126                                         /* (non-Javadoc)
 127                                          * @see org.eclipse.jface.dialogs.InputDialog#createDialogArea(org.eclipse.swt.widgets.Composite)
 128                                          */
 129                                         @Override
 130                                         protected Control createDialogArea(Composite parent) {
 131                                                 Control area= super.createDialogArea(parent);
 132                                                 TextFieldNavigationHandler.install(getText());
 133                                                 return area;
 134                                         }
 135                                 };
 136                                 if (dialog.open() == Window.CANCEL)
 137                                         throw new OperationCanceledException();
 138                                 return dialog.getValue();
 139                         }
 140                 };
 141         }
 142
 143         private static IInputValidator createResourceNameValidator(final IResource res){
 144                 IInputValidator validator= new IInputValidator(){
 145                         public String isValid(String newText) {
 146                                 if (newText == null || "".equals(newText) || res.getParent() == null) //$NON-NLS-1$
 147                                         return INVALID_NAME_NO_MESSAGE;
 148                                 if (res.getParent().findMember(newText) != null)
 149                                         return ReorgMessages.ReorgQueries_resourceWithThisNameAlreadyExists;
 150                                 if (! res.getParent().getFullPath().isValidSegment(newText))
 151                                         return ReorgMessages.ReorgQueries_invalidNameMessage;
 152                                 IStatus status= res.getParent().getWorkspace().validateName(newText, res.getType());
 153                                 if (status.getSeverity() == IStatus.ERROR)
 154                                         return status.getMessage();
 155
 156                                 if (res.getName().equalsIgnoreCase(newText))
 157                                         return ReorgMessages.ReorgQueries_resourceExistsWithDifferentCaseMassage;
 158
 159                                 return null;
 160                         }
 161                 };
 162                 return validator;
 163         }
 164
 165         private static IInputValidator createCompilationUnitNameValidator(final ICompilationUnit cu) {
 166                 IInputValidator validator= new IInputValidator(){
 167                         public String isValid(String newText) {
 168                                 if (newText == null || "".equals(newText)) //$NON-NLS-1$
 169                                         return INVALID_NAME_NO_MESSAGE;
 170                                 String newCuName= JavaModelUtil.getRenamedCUName(cu, newText);
 171                                 IStatus status= JavaConventionsUtil.validateCompilationUnitName(newCuName, cu);
 172                                 if (status.getSeverity() == IStatus.ERROR)
 173                                         return status.getMessage();
 174                                 RefactoringStatus refStatus;
 175                                 refStatus= Checks.checkCompilationUnitNewName(cu, newText);
 176                                 if (refStatus.hasFatalError())
 177                                         return refStatus.getMessageMatchingSeverity(RefactoringStatus.FATAL);
 178
 179                                 if (cu.getElementName().equalsIgnoreCase(newCuName))
 180                                         return ReorgMessages.ReorgQueries_resourceExistsWithDifferentCaseMassage;
 181
 182                                 return null;
 183                         }
 184                 };
 185                 return validator;
 186         }
 187
 188
 189         private static IInputValidator createPackageFragmentRootNameValidator(final IPackageFragmentRoot root) {
 190                 return new IInputValidator() {
 191                         IInputValidator resourceNameValidator= createResourceNameValidator(root.getResource());
 192                         public String isValid(String newText) {
 193                                 return resourceNameValidator.isValid(newText);
 194                         }
 195                 };
 196         }
 197
 198         private static IInputValidator createPackageNameValidator(final IPackageFragment pack) {
 199                 IInputValidator validator= new IInputValidator(){
 200                         public String isValid(String newText) {
 201                                 if (newText == null || "".equals(newText)) //$NON-NLS-1$
 202                                         return INVALID_NAME_NO_MESSAGE;
 203                                 IStatus status= JavaConventionsUtil.validatePackageName(newText, pack);
 204                                 if (status.getSeverity() == IStatus.ERROR)
 205                                         return status.getMessage();
 206
 207                                 IJavaElement parent= pack.getParent();
 208                                 try {
 209                                         if (parent instanceof IPackageFragmentRoot){
 210                                                 if (! RenamePackageProcessor.isPackageNameOkInRoot(newText, (IPackageFragmentRoot)parent))
 211                                                         return ReorgMessages.ReorgQueries_packagewithThatNameexistsMassage;
 212                                         }
 213                                 } catch (CoreException e) {
 214                                         return INVALID_NAME_NO_MESSAGE;
 215                                 }
 216                                 if (pack.getElementName().equalsIgnoreCase(newText))
 217                                         return ReorgMessages.ReorgQueries_resourceExistsWithDifferentCaseMassage;
 218
 219                                 return null;
 220                         }
 221                 };
 222                 return validator;
 223         }
 224 }