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com.bea.content
Class PathHelper

java.lang.Object
com.bea.content.PathHelper

public class PathHelper

extends Object

Utility class to manipulate unix path like Strings such as /a/b/c/d. Paths are always expected to begin with / and end without it. Therefore neither a/b/c or /a/b/c/ are considered valid. Most operations take a path which must be in correct form and also an element to add/remove from the path. This element must not contain the SEPARATOR / as any part of itself.

Field Summary

static String

SEPARATOR The path separator used by the Federated content API and the WLP Repository for all path values.

Constructor Summary

PathHelper()

Method Summary

static String	addFirst(String first, String path) Adds a new element to the front of a path.
static String	addLast(String path, String last) Adds a new element to the end of a path.
static String	buildFederatedPath(String repositoryPath, String repositoryName)
static String	buildRepositoryPath(String federatedPath, String repositoryName)
static int	countNodes(String path) Returns the number of nodes in the path.
static String	getFirst(String path) Gets the first element in the path.
static String	getLast(String path) Gets the last element in the path.
static String	getLineage(String path) Removes the last element and returns the result.
static int	getNameCount(String path) Gets the number of Nodes in the path.
static String	getParentName(String path) Gets the second to last element in a path.
static List	getPathAsList(String path) Converts a path into it's lineage and returns a list of strings.
static List<String>	getPathItemsAsList(String path) Converts a path into a list of each of it's items as strings.
static String	getSubPath(String path, int size) Returns the lineage with the number of parents specified.
static boolean	isValid(String path) Checks if the path is valid: must be non null must be > 0 characters must start with a SEPARATOR must not end with a SEPARATOR
static String	removeFirst(String path) Removes the first element from path and returns the result.
static String	removeLast(String path) Removes the last element from path and returns the result.
static String	removeLast(String path, int i) Removes the last i number of elements from path and returns the result.
static String	trimPath(String path, int size) Trims the path to the given size.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

SEPARATOR

public static final String SEPARATOR

The path separator used by the Federated content API and the WLP Repository for all path values.

See Also

Constants Summary

Constructor Detail

PathHelper

public PathHelper()

Method Detail

buildRepositoryPath

public static String buildRepositoryPath(String federatedPath,
                                         String repositoryName)
                                  throws RepositoryException

Throws

RepositoryException

buildFederatedPath

public static String buildFederatedPath(String repositoryPath,
                                        String repositoryName)
                                 throws RepositoryException

Throws

RepositoryException

isValid

public static boolean isValid(String path)

Checks if the path is valid:

• must be non null
• must be > 0 characters
• must start with a SEPARATOR
• must not end with a SEPARATOR

  Parameters

  path - - the path to validate

  Returns

  true if the above are fullfilled, false if the path is incorrect

  addLast

  public static String addLast(String path,
                               String last)
  

  Adds a new element to the end of a path. For example last = last and path = /a/b/c would return /a/b/c/last.

  Parameters

  path - - the path to add an element to.

  Returns

  the updated path

  addFirst

  public static String addFirst(String first,
                                String path)
  

  Adds a new element to the front of a path. For example first = first and path = /a/b/c would return /first/a/b/c.

  Parameters

  first - - the element to add. Must not contain / as part of the String.

  path - - the path to add an element to.

  Returns

  the updated path

  getLast

  public static String getLast(String path)
  

  Gets the last element in the path. For example, /a/b/c/last would return last

  getFirst

  public static String getFirst(String path)
  

  Gets the first element in the path. For example, /first/a/b/c would return first.

  getParentName

  public static String getParentName(String path)
  

  Gets the second to last element in a path. For example, /a/b/c/parent/e would return parent

  getPathAsList

  public static List getPathAsList(String path)
  

  Converts a path into it's lineage and returns a list of strings. So for example the path "a/b/c/d" would return a list of string objects : "a/b/c/d", "a/b/c", "a/b", "a"

  Parameters

  path -

  Returns

  A list of strings

  getPathItemsAsList

  public static List<String> getPathItemsAsList(String path)
  

  Converts a path into a list of each of it's items as strings. So for example the path "a/b/c/d" would return a list of string objects : "a", "b", "c", "d"

  Parameters

  path -

  Returns

  A list of strings

  removeFirst

  public static String removeFirst(String path)
  

  Removes the first element from path and returns the result. For example, /first/a/b/c would return /a/b/c If there is only one element then return an empty String.

  removeLast

  public static String removeLast(String path)
  

  Removes the last element from path and returns the result. For example, /a/b/c/last would return /a/b/c If there is only one element then return an empty String.

  removeLast

  public static String removeLast(String path,
                                  int i)
  

  Removes the last i number of elements from path and returns the result. For example, /a/b/c/last where i=2 would return /a/b If there is only one element then return an empty String.

  countNodes

  public static int countNodes(String path)
  

  Returns the number of nodes in the path.

  getLineage

  public static String getLineage(String path)
  

  Removes the last element and returns the result. For example, /a/b/c/d and /a/b/c/d/ would return /a/b/c

  trimPath

  public static String trimPath(String path,
                                int size)
  

  Trims the path to the given size. For example, path = /one/two/three/four and size = 10 would return /one/two/t

  getSubPath

  public static String getSubPath(String path,
                                  int size)
  

  Returns the lineage with the number of parents specified. For example, /a/b/c/d/e with a size of 3 would return /a/b/c

  getNameCount

  public static int getNameCount(String path)
  

  Gets the number of Nodes in the path. For example, /a/b/c/d and /a/b/c/d/ would return 4.