How to use

isValidSegment

method

in

org.eclipse.core.runtime.IPath

  @Override
  public String isValid(String newText) {
    if (newText == null || "".equals(newText) || res.getParent() == null) //$NON-NLS-1$
      return INVALID_NAME_NO_MESSAGE;
    if (res.getParent().findMember(newText) != null)
      return ReorgMessages.ReorgQueries_resourceWithThisNameAlreadyExists;
    if (! res.getParent().getFullPath().isValidSegment(newText))
      return ReorgMessages.ReorgQueries_invalidNameMessage;
    IStatus status= res.getParent().getWorkspace().validateName(newText, res.getType());
    if (status.getSeverity() == IStatus.ERROR)
      return status.getMessage();
    if (res.getName().equalsIgnoreCase(newText))
      return ReorgMessages.ReorgQueries_resourceExistsWithDifferentCaseMassage;
    return null;
  }
};

  @Override
  public String isValid(String newText) {
    if (newText == null || "".equals(newText) || res.getParent() == null) //$NON-NLS-1$
      return INVALID_NAME_NO_MESSAGE;
    if (res.getParent().findMember(newText) != null)
      return ReorgMessages.ReorgQueries_resourceWithThisNameAlreadyExists;
    if (! res.getParent().getFullPath().isValidSegment(newText))
      return ReorgMessages.ReorgQueries_invalidNameMessage;
    IStatus status= res.getParent().getWorkspace().validateName(newText, res.getType());
    if (status.getSeverity() == IStatus.ERROR)
      return status.getMessage();
    if (res.getName().equalsIgnoreCase(newText))
      return ReorgMessages.ReorgQueries_resourceExistsWithDifferentCaseMassage;
    return null;
  }
};

@Override
public IPath append(IPath tail) {
  //optimize some easy cases
  if (tail == null || tail.segmentCount() == 0)
    return this;
  //these call chains look expensive, but in most cases they are no-ops
  //the tail must be for the same platform as this instance
  if (this.isEmpty() && ((flags & IS_FOR_WINDOWS) == 0) == tail.isValidSegment(":")) //$NON-NLS-1$
    return tail.setDevice(device).makeRelative().makeUNC(isUNC());
  if (this.isRoot() && ((flags & IS_FOR_WINDOWS) == 0) == tail.isValidSegment(":")) //$NON-NLS-1$
    return tail.setDevice(device).makeAbsolute().makeUNC(isUNC());
  //concatenate the two segment arrays
  int myLen = segments.length;
  int tailLen = tail.segmentCount();
  String[] newSegments = new String[myLen + tailLen];
  System.arraycopy(segments, 0, newSegments, 0, myLen);
  for (int i = 0; i < tailLen; i++) {
    newSegments[myLen + i] = tail.segment(i);
  }
  //use my leading separators and the tail's trailing separator
  Path result = new Path(device, newSegments, (flags & (HAS_LEADING | IS_UNC | IS_FOR_WINDOWS)) | (tail.hasTrailingSeparator() ? HAS_TRAILING : 0));
  String tailFirstSegment = newSegments[myLen];
  if (tailFirstSegment.equals("..") || tailFirstSegment.equals(".")) { //$NON-NLS-1$ //$NON-NLS-2$
    result.canonicalize();
  }
  return result;
}

@Override
public IPath append(IPath tail) {
  //optimize some easy cases
  if (tail == null || tail.segmentCount() == 0)
    return this;
  //these call chains look expensive, but in most cases they are no-ops
  //the tail must be for the same platform as this instance
  if (this.isEmpty() && ((flags & IS_FOR_WINDOWS) == 0) == tail.isValidSegment(":")) //$NON-NLS-1$
    return tail.setDevice(device).makeRelative().makeUNC(isUNC());
  if (this.isRoot() && ((flags & IS_FOR_WINDOWS) == 0) == tail.isValidSegment(":")) //$NON-NLS-1$
    return tail.setDevice(device).makeAbsolute().makeUNC(isUNC());
  //concatenate the two segment arrays
  int myLen = segments.length;
  int tailLen = tail.segmentCount();
  String[] newSegments = new String[myLen + tailLen];
  System.arraycopy(segments, 0, newSegments, 0, myLen);
  for (int i = 0; i < tailLen; i++) {
    newSegments[myLen + i] = tail.segment(i);
  }
  //use my leading separators and the tail's trailing separator
  Path result = new Path(device, newSegments, (flags & (HAS_LEADING | IS_UNC | IS_FOR_WINDOWS)) | (tail.hasTrailingSeparator() ? HAS_TRAILING : 0));
  String tailFirstSegment = newSegments[myLen];
  if (tailFirstSegment.equals("..") || tailFirstSegment.equals(".")) { //$NON-NLS-1$ //$NON-NLS-2$
    result.canonicalize();
  }
  return result;
}

@Override
public RefactoringStatus checkNewElementName(String newName) throws CoreException {
  Assert.isNotNull(newName, "new name"); //$NON-NLS-1$
  if (! newName.trim().equals(newName))
    return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.RenameSourceFolderRefactoring_blank);
  IContainer c=     fSourceFolder.getResource().getParent();
  if (! c.getFullPath().isValidSegment(newName))
    return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.RenameSourceFolderRefactoring_invalid_name);
  RefactoringStatus result= RefactoringStatus.create(c.getWorkspace().validateName(newName, IResource.FOLDER));
  if (result.hasFatalError())
    return result;
  result.merge(RefactoringStatus.create(c.getWorkspace().validatePath(createNewPath(newName), IResource.FOLDER)));
  if (result.hasFatalError())
    return result;
  IJavaProject project= fSourceFolder.getJavaProject();
  IPath p= project.getProject().getFullPath().append(newName);
  if (project.findPackageFragmentRoot(p) != null)
    return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.RenameSourceFolderRefactoring_already_exists);
  if (project.getProject().findMember(new Path(newName)) != null)
    return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.RenameSourceFolderRefactoring_alread_exists);
  return result;
}

@Override
public RefactoringStatus checkNewElementName(String newName) throws CoreException {
  Assert.isNotNull(newName, "new name"); //$NON-NLS-1$
  if (! newName.trim().equals(newName))
    return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.RenameSourceFolderRefactoring_blank);
  IContainer c=     fSourceFolder.getResource().getParent();
  if (! c.getFullPath().isValidSegment(newName))
    return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.RenameSourceFolderRefactoring_invalid_name);
  RefactoringStatus result= RefactoringStatus.create(c.getWorkspace().validateName(newName, IResource.FOLDER));
  if (result.hasFatalError())
    return result;
  result.merge(RefactoringStatus.create(c.getWorkspace().validatePath(createNewPath(newName), IResource.FOLDER)));
  if (result.hasFatalError())
    return result;
  IJavaProject project= fSourceFolder.getJavaProject();
  IPath p= project.getProject().getFullPath().append(newName);
  if (project.findPackageFragmentRoot(p) != null)
    return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.RenameSourceFolderRefactoring_already_exists);
  if (project.getProject().findMember(new Path(newName)) != null)
    return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.RenameSourceFolderRefactoring_alread_exists);
  return result;
}

public RefactoringStatus checkNewElementName(String newName) throws CoreException {
  Assert.isNotNull(newName, "new name"); //$NON-NLS-1$
  if (! newName.trim().equals(newName))
    return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.RenameSourceFolderRefactoring_blank); 
  
  IContainer c=     fSourceFolder.getResource().getParent();
  if (! c.getFullPath().isValidSegment(newName))
    return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.RenameSourceFolderRefactoring_invalid_name); 
  
  RefactoringStatus result= RefactoringStatus.create(c.getWorkspace().validateName(newName, IResource.FOLDER));
  if (result.hasFatalError())
    return result;		
      
  result.merge(RefactoringStatus.create(c.getWorkspace().validatePath(createNewPath(newName), IResource.FOLDER)));        
  if (result.hasFatalError())
    return result;
    
  IJavaProject project= fSourceFolder.getJavaProject();
  IPath p= project.getProject().getFullPath().append(newName);
  if (project.findPackageFragmentRoot(p) != null)
    return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.RenameSourceFolderRefactoring_already_exists); 
  
  if (project.getProject().findMember(new Path(newName)) != null)
    return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.RenameSourceFolderRefactoring_alread_exists); 
  return result;		
}

public RefactoringStatus checkNewElementName(String newName) throws JavaModelException {
  Assert.isNotNull(newName, "new name"); //$NON-NLS-1$
  IContainer c= fResource.getParent();
  if (c == null)
    return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.RenameResourceRefactoring_Internal_Error);
  if (c.findMember(newName) != null)
    return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.RenameResourceRefactoring_alread_exists);
  if (!c.getFullPath().isValidSegment(newName))
    return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.RenameResourceRefactoring_invalidName);
  RefactoringStatus result= RefactoringStatus.create(c.getWorkspace().validateName(newName, fResource.getType()));
  if (!result.hasFatalError())
    result.merge(RefactoringStatus.create(c.getWorkspace().validatePath(createNewPath(newName), fResource.getType())));
  return result;
}

public RefactoringStatus checkNewElementName(String newName)  {
  Assert.isNotNull(newName, "new name"); //$NON-NLS-1$
  IContainer c= fResource.getParent();
  if (c == null)
    return RefactoringStatus.createFatalErrorStatus(RefactoringMessages.getString("RenameResourceRefactoring.Internal_Error")); //$NON-NLS-1$
          
  if (c.findMember(newName) != null)
    return RefactoringStatus.createFatalErrorStatus(RefactoringMessages.getString("RenameResourceRefactoring.alread_exists")); //$NON-NLS-1$
    
  if (!c.getFullPath().isValidSegment(newName))
    return RefactoringStatus.createFatalErrorStatus(RefactoringMessages.getString("RenameResourceRefactoring.invalidName")); //$NON-NLS-1$

  RefactoringStatus result= RefactoringStatus.create(c.getWorkspace().validateName(newName, fResource.getType()));
  if (! result.hasFatalError())
    result.merge(RefactoringStatus.create(c.getWorkspace().validatePath(createNewPath(newName), fResource.getType())));        
  return result;		
}

/**
 * Validates if the a name is valid. This method does not change the name settings on the refactoring. It is intended to be used
 * in a wizard to validate user input.
 *
 * @param newName the name to validate
 * @return returns the resulting status of the validation
 */
public RefactoringStatus validateNewElementName(String newName) {
  Assert.isNotNull(newName, "new name"); //$NON-NLS-1$
  IContainer c= fResource.getParent();
  if (c == null)
    return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.RenameResourceProcessor_error_no_parent);
  if (!c.getFullPath().isValidSegment(newName))
    return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.RenameResourceProcessor_error_invalid_name);
  if (c.findMember(newName) != null)
    return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.RenameResourceProcessor_error_resource_already_exists);
  RefactoringStatus result= RefactoringStatus.create(c.getWorkspace().validateName(newName, fResource.getType()));
  if (!result.hasFatalError())
    result.merge(RefactoringStatus.create(c.getWorkspace().validatePath(createNewPath(newName), fResource.getType())));
  return result;
}

/**
 * Validates if the a name is valid. This method does not change the name settings on the refactoring. It is intended to be used
 * in a wizard to validate user input.
 *
 * @param newName the name to validate
 * @return returns the resulting status of the validation
 */
public RefactoringStatus validateNewElementName(String newName) {
  Assert.isNotNull(newName, "new name"); //$NON-NLS-1$
  IContainer c= fResource.getParent();
  if (c == null)
    return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.RenameResourceProcessor_error_no_parent);
  if (!c.getFullPath().isValidSegment(newName))
    return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.RenameResourceProcessor_error_invalid_name);
  if (c.findMember(newName) != null)
    return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.RenameResourceProcessor_error_resource_already_exists);
  RefactoringStatus result= RefactoringStatus.create(c.getWorkspace().validateName(newName, fResource.getType()));
  if (!result.hasFatalError())
    result.merge(RefactoringStatus.create(c.getWorkspace().validatePath(createNewPath(newName), fResource.getType())));
  return result;
}