Package cdc.util.data.util

Class DataUtils

java.lang.Object

cdc.util.data.util.DataUtils

public final class DataUtils
extends Object

Utilities for modification of data trees.

Author:

Damien Carbonne

Field Summary

Fields

Modifier and Type	Field	Description
static Evaluator<Node>	RECURSE

Method Summary

Modifier and Type	Method	Description
static boolean	hasAllDescendantsMatching(Node node, Predicate<Node> predicate, boolean strict)
static boolean	hasAncestorMatching(Node node, Predicate<Node> predicate)
static boolean	hasDescendantMatching(Node node, Predicate<Node> predicate, boolean strict)
static void	moveAttributeFirst(Parent parent, Predicate<? super Element> predicate, String name, Evaluator<? super Parent> evaluator)	Moves the attribute that has a given name to first position, if it exists.
static void	removeComments(Parent parent, Evaluator<? super Parent> evaluator)	Removes comments nodes.
static void	removeEmptyAttributes(Parent parent, Evaluator<? super Parent> evaluator)	Recursively removes empty attributes.
static void	removeIgnorableText(Parent parent, Evaluator<? super Parent> evaluator)	Removes text that can be ignored.
static void	removeMatchingAttributes(Parent parent, AttributePredicate predicate, Evaluator<? super Parent> evaluator)	Removes matching attributes.
static void	removeMatchingChildren(Parent parent, Predicate<? super Child> predicate, Evaluator<? super Parent> evaluator)	Removes matching children.
static void	removePureElements(Parent parent, Evaluator<? super Parent> evaluator)	Removes pure elements (they have no children and no attributes).
static void	setContentOfMatchingElements(Parent parent, ElementPredicate predicate, TextContentConverter converter, Evaluator<? super Parent> evaluator)
static void	setContentOfMatchingTexts(Parent parent, TextPredicate predicate, TextContentConverter converter, Evaluator<? super Parent> evaluator)	Sets the content of matching texts.
static void	setNameOfMatchingAttributes(Parent parent, AttributePredicate predicate, AttributeNameConverter converter, Evaluator<? super Parent> evaluator)	Sets names of matching attributes.
static void	setNameOfMatchingElements(Parent parent, Predicate<? super Element> predicate, ElementNameConverter converter, Evaluator<? super Parent> evaluator)	Sets the name of matching elements.
static void	setValueOfMatchingAttributes(Parent parent, AttributePredicate predicate, AttributeValueConverter converter, Evaluator<? super Parent> evaluator)	Sets value of matching attributes.
static void	sortAttributes(Parent parent, Comparator<Attribute> comparator, Evaluator<? super Parent> evaluator)	Sorts attributes of elements using a user defined sorter.
static void	sortChildren(Parent parent, Predicate<? super Parent> predicate, Comparator<? super Child> comparator, Evaluator<? super Parent> evaluator)	Sorts children nodes using a user-defined comparator.

Methods inherited from class java.lang.Object

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

Field Detail

RECURSE

public static final Evaluator<Node> RECURSE

Method Detail

setNameOfMatchingAttributes

public static void setNameOfMatchingAttributes(Parent parent,
                                               AttributePredicate predicate,
                                               AttributeNameConverter converter,
                                               Evaluator<? super Parent> evaluator)

Sets names of matching attributes.

Uses a Depth First traversal for recursion.
Change is applied on parent before its children.

Parameters:

parent - The initial node. MUST NOT be null.

predicate - The predicate of matching attributes. MUST NOT be null.

converter - The attribute name converter. MUST NOT be null.

evaluator - The evaluator. MUST NOT be null.

setValueOfMatchingAttributes

public static void setValueOfMatchingAttributes(Parent parent,
                                                AttributePredicate predicate,
                                                AttributeValueConverter converter,
                                                Evaluator<? super Parent> evaluator)

Sets value of matching attributes.

Uses a Depth First traversal for recursion.
Change is applied on parent before its children.

Parameters:

parent - The initial node. MUST NOT be null.

predicate - The predicate of matching attributes. MUST NOT be null.

converter - The attribute value converter. MUST NOT be null.

evaluator - The evaluator. MUST NOT be null.

removeMatchingAttributes

public static void removeMatchingAttributes(Parent parent,
                                            AttributePredicate predicate,
                                            Evaluator<? super Parent> evaluator)

Removes matching attributes.

Uses a Depth First traversal for recursion.
Removal is applied on parent before its children.

Parameters:

parent - The initial node. MUST NOT be null.

predicate - The predicate of matching attributes. MUST NOT be null.

evaluator - The evaluator. MUST NOT be null.

removeEmptyAttributes

public static void removeEmptyAttributes(Parent parent,
                                         Evaluator<? super Parent> evaluator)

Recursively removes empty attributes.

Uses a Depth First traversal for recursion.
Removal is applied on parent before its children.

Parameters:

parent - The initial node. MUST NOT be null.

evaluator - The evaluator. MUST NOT be null.

sortAttributes

public static void sortAttributes(Parent parent,
                                  Comparator<Attribute> comparator,
                                  Evaluator<? super Parent> evaluator)

Sorts attributes of elements using a user defined sorter.

Uses a Depth First traversal for recursion.
Sort is applied on parent before its children.

Parameters:

parent - The initial node. MUST NOT be null.

comparator - The attribute name comparator. MUST NOT be null.

evaluator - The evaluator. MUST NOT be null.

moveAttributeFirst

public static void moveAttributeFirst(Parent parent,
                                      Predicate<? super Element> predicate,
                                      String name,
                                      Evaluator<? super Parent> evaluator)

Moves the attribute that has a given name to first position, if it exists.

Uses a Depth First traversal for recursion.
Move is applied on parent before its children.

Parameters:

parent - The initial node. MUST NOT be null.

predicate - The predicate of matching elements. MUST NOT be null.

name - The attribute name.

evaluator - The evaluator. MUST NOT be null.

setNameOfMatchingElements

public static void setNameOfMatchingElements(Parent parent,
                                             Predicate<? super Element> predicate,
                                             ElementNameConverter converter,
                                             Evaluator<? super Parent> evaluator)

Sets the name of matching elements.

Uses a Depth First traversal for recursion.
Change is applied on parent before its children.

Parameters:

parent - The initial node. MUST NOT be null.

predicate - The predicate of matching elements. MUST NOT be null.

converter - The name converter. MUST NOT be null.

evaluator - The evaluator. MUST NOT be null.

setContentOfMatchingTexts

public static void setContentOfMatchingTexts(Parent parent,
                                             TextPredicate predicate,
                                             TextContentConverter converter,
                                             Evaluator<? super Parent> evaluator)

Sets the content of matching texts.

Uses a Depth First traversal for recursion.

Parameters:

parent - The initial node. MUST NOT be null.

predicate - The predicate of matching texts. MUST NOT be null.

converter - The content converter.

evaluator - The evaluator. MUST NOT be null.

setContentOfMatchingElements

public static void setContentOfMatchingElements(Parent parent,
                                                ElementPredicate predicate,
                                                TextContentConverter converter,
                                                Evaluator<? super Parent> evaluator)

removeMatchingChildren

public static void removeMatchingChildren(Parent parent,
                                          Predicate<? super Child> predicate,
                                          Evaluator<? super Parent> evaluator)

Removes matching children.

Uses a Depth First traversal for recursion.
Removal is applied on children before parent.

Parameters:

parent - The initial node. MUST NOT be null.

predicate - The predicate of children nodes to remove. MUST NOT be null.

evaluator - The evaluator. MUST NOT be null.

removeComments

public static void removeComments(Parent parent,
                                  Evaluator<? super Parent> evaluator)

Removes comments nodes.

Uses a Depth First traversal for recursion.
Removal is applied on children before parent.

Parameters:

parent - The initial node. MUST NOT be null.

evaluator - The evaluator. MUST NOT be null.

removeIgnorableText

public static void removeIgnorableText(Parent parent,
                                       Evaluator<? super Parent> evaluator)

Removes text that can be ignored.

Uses a Depth First traversal for recursion.
Removal is applied on children before parent.

Parameters:

parent - The initial node. MUST NOT be null.

evaluator - The evaluator. MUST NOT be null.

removePureElements

public static void removePureElements(Parent parent,
                                      Evaluator<? super Parent> evaluator)

Removes pure elements (they have no children and no attributes).

Uses a Depth First traversal for recursion.
Removal is applied on children before parent.

Parameters:

parent - The initial node. MUST NOT be null.

evaluator - The evaluator. MUST NOT be null.

sortChildren

public static void sortChildren(Parent parent,
                                Predicate<? super Parent> predicate,
                                Comparator<? super Child> comparator,
                                Evaluator<? super Parent> evaluator)

Sorts children nodes using a user-defined comparator.

Uses a Depth First traversal for recursion.
Sort is applied on parent before its children.

Parameters:

parent - The initial node. MUST NOT be null.

predicate - The predicate of nodes whose children must be sorted. MUST NOT be null.

comparator - The children comparator.

evaluator - The evaluator. MUST NOT be null.

hasAncestorMatching

public static boolean hasAncestorMatching(Node node,
                                          Predicate<Node> predicate)

hasDescendantMatching

public static boolean hasDescendantMatching(Node node,
                                            Predicate<Node> predicate,
                                            boolean strict)

hasAllDescendantsMatching

public static boolean hasAllDescendantsMatching(Node node,
                                                Predicate<Node> predicate,
                                                boolean strict)