How to use

segmentCount

method

in

org.eclipse.core.runtime.IPath

/**
 * Returns the value associated with the given key
 */
public T get(IPath key) {
  Node<T> node = this.root.getMostSpecificNode(key);
  if (!node.exists || node.depth < key.segmentCount()) {
    return null;
  }
  return node.value;
}

public static boolean hasDotDot(IPath path) {
  for (int i = 0, length = path.segmentCount(); i < length; i++) {
    if (DOT_DOT.equals(path.segment(i)))
      return true;
  }
  return false;
}

protected boolean isNonProjectSpecificContainer(IPath containerPath) {
  if (containerPath.segmentCount() > 0) {
    String id= containerPath.segment(0);
    if (id.equals(JavaCore.USER_LIBRARY_CONTAINER_ID) || id.equals(JavaRuntime.JRE_CONTAINER)) {
      return true;
    }
  }
  return false;
}

/**
 * @param path full absolute workspace path
 */
private static boolean isInternalFilePath(IPath path) {
  IWorkspaceRoot wsRoot = ResourcesPlugin.getWorkspace().getRoot();
  // in case this is full workspace path it should start with project segment
  if(path.segmentCount() > 1 && wsRoot.getFile(path).exists()) {
    return true;
  }
  return false;
}

/**
 * @deprecated use {@link #getFileStore(IPath)} instead
 */
@Deprecated
@Override
public IFileStore getChild(IPath path) {
  IFileStore result = this;
  for (int i = 0, imax = path.segmentCount(); i < imax; i++)
    result = result.getChild(path.segment(i));
  return result;
}

/**
 * Gets the source attachment path chosen by the user
 * @return the source attachment path
 */
public IPath getSourceAttachmentPath() {
  return (getFilePath().segmentCount() == 0) ? null : getFilePath();
}

/**
 * Returns true if this resource represents the project description file, and
 * false otherwise.
 */
protected boolean isProjectDescriptionFile(IResource resource) {
  return resource.getType() == IResource.FILE && resource.getFullPath().segmentCount() == 2 && resource.getName().equals(IProjectDescription.DESCRIPTION_FILE_NAME);
}

/**
 * Gets the description file (as workspace resource).
 *
 * @return a file which points to the description
 */
public IFile getDescriptionFile() {
  IPath path= getDescriptionLocation();
  if (path.isValidPath(path.toString()) && path.segmentCount() >= 2)
    return JavaPlugin.getWorkspace().getRoot().getFile(path);
  else
    return null;
}

/**
 * The path is known to match a source/library folder entry.
 * @param path IPath
 * @return IPackageFragmentRoot
 */
public IPackageFragmentRoot getFolderPackageFragmentRoot(IPath path) {
  if (path.segmentCount() == 1) { // default project root
    return getPackageFragmentRoot(this.project);
  }
  return getPackageFragmentRoot(this.project.getWorkspace().getRoot().getFolder(path));
}

  @Override
  public int visit(Entry sourceEntry) {
    IPath destinationPath = destination.append(sourceEntry.getPath().removeFirstSegments(source.segmentCount()));
    HistoryEntry destinationEntry = new HistoryEntry(destinationPath, (HistoryEntry) sourceEntry);
    // we may be copying to the same source bucket, collect to make change effective later
    // since we cannot make changes to it while iterating
    changes.add(destinationEntry);
    return CONTINUE;
  }
}

  @Override
  public int visit(Entry entry) {
    PropertyEntry sourceEntry = (PropertyEntry) entry;
    IPath destinationPath = destination.append(sourceEntry.getPath().removeFirstSegments(source.segmentCount()));
    PropertyEntry destinationEntry = new PropertyEntry(destinationPath, sourceEntry);
    changes.add(destinationEntry);
    return CONTINUE;
  }
}

Node<T> createNode(IPath key) {
  if (this.depth == key.segmentCount()) {
    this.exists = true;
    return this;
  }
  String nextSegment = getSegment(key);
  Node<T> next = createChild(nextSegment);
  return next.createNode(key);
}

private IPackageFragmentRoot findPackageFragmentRoot(IJavaProject jProject, IPath path) throws JavaModelException {
  if (jProject == null || path == null || path.segmentCount() <= 0)
    return null;
  IPackageFragmentRoot pkgRoot= jProject.findPackageFragmentRoot(path);
  if (pkgRoot != null)
    return pkgRoot;
  else
    return findPackageFragmentRoot(jProject, path.removeLastSegments(1));
}

/**
 * @deprecated use {@link #resolveURI(URI)} instead.
 */
@Override
@Deprecated
public IPath resolvePath(IPath path) {
  if (path == null || path.segmentCount() == 0 || path.isAbsolute() || path.getDevice() != null)
    return path;
  URI value = resolveURI(URIUtil.toURI(path));
  return value == null ? path : URIUtil.toPath(value);
}

@Override
public IClasspathAttribute performEdit(Shell shell, ClasspathAttributeAccess attribute) {
  String initialLocation= attribute.getClasspathAttribute().getValue();
  IPath locationPath= initialLocation == null ? null : new Path(initialLocation);
  IPath newPath= BuildPathDialogAccess.configureExternalAnnotationsAttachment(shell, locationPath);
  if(null == newPath)	// Was the dialog cancelled?
    return null;
  return JavaCore.newClasspathAttribute(IClasspathAttribute.EXTERNAL_ANNOTATION_PATH, newPath.segmentCount() == 0 ? null : newPath.toPortableString());
}

/**
 * @see org.eclipse.core.resources.IPathVariableManager#resolvePath(IPath)
 */
@Deprecated
@Override
public IPath resolvePath(IPath path) {
  if (path == null || path.segmentCount() == 0 || path.isAbsolute() || path.getDevice() != null)
    return path;
  IPath value = getValue(path.segment(0));
  return value == null ? path : value.append(path.removeFirstSegments(1));
}

private static boolean addToExclusions(IPath entryPath, CPListElement curr) {
  IPath[] exclusionFilters= (IPath[]) curr.getAttribute(CPListElement.EXCLUSION);
  if (!JavaModelUtil.isExcludedPath(entryPath, exclusionFilters)) {
    IPath pathToExclude= entryPath.removeFirstSegments(curr.getPath().segmentCount()).addTrailingSeparator();
    IPath[] newExclusionFilters= new IPath[exclusionFilters.length + 1];
    System.arraycopy(exclusionFilters, 0, newExclusionFilters, 0, exclusionFilters.length);
    newExclusionFilters[exclusionFilters.length]= pathToExclude;
    curr.setAttribute(CPListElement.EXCLUSION, newExclusionFilters);
    return true;
  }
  return false;
}

protected void mkdirs(IPath path, IWorkspaceRoot root) throws CoreException {
  if (path.segmentCount() <= 1)
    return;
  IFolder folder = root.getFolder(path);
  if (!folder.exists()) {
    mkdirs(path.removeLastSegments(1), root);
    folder.create(true, true, null);
  }
}

private IResource getUnderlyingDirectory(EclipseSourceDirectory directory) {
  IProject project = this.project.getProject();
  IPath path = project.getFullPath().append(directory.getPath());
  if (path.segmentCount() == 1) {
    return project;
  }
  return project.getFolder(path.removeFirstSegments(1));
}

protected IPath createNewPath(IPackageFragment oldPackage) {
  IPath oldPackagePath= createPath(oldPackage.getElementName());
  IPath newPackagePath= createPath(getNewName(oldPackage));
  return oldPackage.getPath().removeLastSegments(oldPackagePath.segmentCount()).append(newPackagePath);
}