org.xmlunit.diff

Class DefaultComparisonFormatter

java.lang.Object

org.xmlunit.diff.DefaultComparisonFormatter

All Implemented Interfaces:

ComparisonFormatter

public class DefaultComparisonFormatter
extends Object
implements ComparisonFormatter

Formatter methods for a Comparison Object.

Constructor Summary

Constructors

Constructor and Description
DefaultComparisonFormatter()

Method Summary

Modifier and Type	Method and Description
protected void	appendAttribute(StringBuilder sb, Attr aNode) Formats a placeholder for an attribute for getShortString(org.w3c.dom.Node, java.lang.String, org.xmlunit.diff.ComparisonType).
protected void	appendComment(StringBuilder sb, Comment aNode) Formats a comment for getShortString(org.w3c.dom.Node, java.lang.String, org.xmlunit.diff.ComparisonType).
protected void	appendDocumentElementIndication(StringBuilder sb, Document doc) Appends a short indication of the document's root element like "<ElementName...
protected boolean	appendDocumentType(StringBuilder sb, DocumentType type) Appends the XML DOCTYPE for getShortString(org.w3c.dom.Node, java.lang.String, org.xmlunit.diff.ComparisonType) or appendFullDocumentHeader(java.lang.StringBuilder, org.w3c.dom.Document) if present.
protected boolean	appendDocumentXmlDeclaration(StringBuilder sb, Document doc) Appends the XML declaration for getShortString(org.w3c.dom.Node, java.lang.String, org.xmlunit.diff.ComparisonType) or appendFullDocumentHeader(java.lang.StringBuilder, org.w3c.dom.Document) if it contains non-default values.
protected void	appendElement(StringBuilder sb, Element aNode) Formats a placeholder for an element for getShortString(org.w3c.dom.Node, java.lang.String, org.xmlunit.diff.ComparisonType).
protected void	appendFullDocumentHeader(StringBuilder sb, Document doc) Appends the XML declaration and DOCTYPE if present as well as the document's root element for getFullFormattedXml(org.w3c.dom.Node, org.xmlunit.diff.ComparisonType, boolean).
protected void	appendProcessingInstruction(StringBuilder sb, ProcessingInstruction instr) Formats a processing instruction for getShortString(org.w3c.dom.Node, java.lang.String, org.xmlunit.diff.ComparisonType).
protected void	appendText(StringBuilder sb, Text aNode) Formats a text or CDATA node for getShortString(org.w3c.dom.Node, java.lang.String, org.xmlunit.diff.ComparisonType).
protected void	appendXPath(StringBuilder sb, String xpath) Appends the XPath information for getShortString(org.w3c.dom.Node, java.lang.String, org.xmlunit.diff.ComparisonType) if present.
protected Transformer	createXmlTransformer(int numberOfBlanksToIndent) Create a default Transformer to format a XML-Node to a String.
String	getDescription(Comparison difference) Return a short String of the Comparison including the XPath and the shorten value of the effected control and test Node.
String	getDetails(Comparison.Detail difference, ComparisonType type, boolean formatXml) Return the xml node from Comparison.Detail.getTarget() as formatted String.
protected String	getFormattedNodeXml(Node nodeToConvert, boolean formatXml) Formats a node with the help of an identity XML transformation.
protected String	getFullFormattedXml(Node node, ComparisonType type, boolean formatXml) Formats the node using a format suitable for the node type and comparison.
protected String	getShortString(Node node, String xpath, ComparisonType type) Return a String representation for getShortString(org.w3c.dom.Node, java.lang.String, org.xmlunit.diff.ComparisonType) that describes the "thing" that has been compared so users know how to locate it.
protected Object	getValue(Object value, ComparisonType type) May alter the display of a comparison value for getShortString(org.w3c.dom.Node, java.lang.String, org.xmlunit.diff.ComparisonType) based on the comparison type.
protected String	nodeType(short type) Provides a display text for the constant values of the Node class that represent node types.

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultComparisonFormatter

public DefaultComparisonFormatter()

Method Detail

getDescription

public String getDescription(Comparison difference)

Return a short String of the Comparison including the XPath and the shorten value of the effected control and test Node.

In general the String will look like "Expected X 'Y' but was 'Z' - comparing A to B" where A and B are the result of invoking getShortString(org.w3c.dom.Node, java.lang.String, org.xmlunit.diff.ComparisonType) on the target and XPath of the control and test details of the comparison. A is the description of the comparison and B and C are the control and test values (passed through getValue(java.lang.Object, org.xmlunit.diff.ComparisonType)) respectively.

For missing attributes the string has a slightly different format.

Specified by:

getDescription in interface ComparisonFormatter

Parameters:

difference - the comparison to describe

Returns:

a short description of the comparison

getValue

protected Object getValue(Object value,
                          ComparisonType type)

May alter the display of a comparison value for getShortString(org.w3c.dom.Node, java.lang.String, org.xmlunit.diff.ComparisonType) based on the comparison type.

This implementation returns value unless it is a comparison of node types in which case the numeric value (one of the constants defined in the Node class) is mapped to a more useful String.

Parameters:

value - the value to display

type - the comparison type

Returns:

the display value

Since:

XMLUnit 2.4.0

getShortString

protected String getShortString(Node node,
                                String xpath,
                                ComparisonType type)

Return a String representation for getShortString(org.w3c.dom.Node, java.lang.String, org.xmlunit.diff.ComparisonType) that describes the "thing" that has been compared so users know how to locate it.

Examples are "<bar ...> at /foo[1]/bar[1]" for a comparison of elements or "<!-- Comment Text --> at /foo[2]/comment()[1]" for a comment.

This implementation dispatches to several appendX methods based on the comparison type or the type of the node.

Parameters:

node - the node to describe

xpath - xpath of the node if applicable

type - the comparison type

Returns:

the formatted result

Since:

XMLUnit 2.4.0

appendXPath

protected void appendXPath(StringBuilder sb,
                           String xpath)

Appends the XPath information for getShortString(org.w3c.dom.Node, java.lang.String, org.xmlunit.diff.ComparisonType) if present.

Parameters:

sb - the builder to append to

xpath - the xpath to append, if any

Since:

XMLUnit 2.4.0

appendDocumentXmlDeclaration

protected boolean appendDocumentXmlDeclaration(StringBuilder sb,
                                               Document doc)

Appends the XML declaration for getShortString(org.w3c.dom.Node, java.lang.String, org.xmlunit.diff.ComparisonType) or appendFullDocumentHeader(java.lang.StringBuilder, org.w3c.dom.Document) if it contains non-default values.

Parameters:

sb - the builder to append to

Returns:

true if the XML declaration has been appended

Since:

XMLUnit 2.4.0

appendDocumentElementIndication

protected void appendDocumentElementIndication(StringBuilder sb,
                                               Document doc)

Appends a short indication of the document's root element like "<ElementName...>" for getShortString(org.w3c.dom.Node, java.lang.String, org.xmlunit.diff.ComparisonType).

Parameters:

sb - the builder to append to

doc - the XML document node

Since:

XMLUnit 2.4.0

appendDocumentType

protected boolean appendDocumentType(StringBuilder sb,
                                     DocumentType type)

Appends the XML DOCTYPE for getShortString(org.w3c.dom.Node, java.lang.String, org.xmlunit.diff.ComparisonType) or appendFullDocumentHeader(java.lang.StringBuilder, org.w3c.dom.Document) if present.

Parameters:

sb - the builder to append to

type - the document type

Returns:

true if the DOCTPYE has been appended

Since:

XMLUnit 2.4.0

appendProcessingInstruction

protected void appendProcessingInstruction(StringBuilder sb,
                                           ProcessingInstruction instr)

Formats a processing instruction for getShortString(org.w3c.dom.Node, java.lang.String, org.xmlunit.diff.ComparisonType).

Parameters:

sb - the builder to append to

instr - the processing instruction

Since:

XMLUnit 2.4.0

appendComment

protected void appendComment(StringBuilder sb,
                             Comment aNode)

Formats a comment for getShortString(org.w3c.dom.Node, java.lang.String, org.xmlunit.diff.ComparisonType).

Parameters:

sb - the builder to append to

aNode - the comment

Since:

XMLUnit 2.4.0

appendText

protected void appendText(StringBuilder sb,
                          Text aNode)

Formats a text or CDATA node for getShortString(org.w3c.dom.Node, java.lang.String, org.xmlunit.diff.ComparisonType).

Parameters:

sb - the builder to append to

aNode - the text or CDATA node

Since:

XMLUnit 2.4.0

appendElement

protected void appendElement(StringBuilder sb,
                             Element aNode)

Formats a placeholder for an element for getShortString(org.w3c.dom.Node, java.lang.String, org.xmlunit.diff.ComparisonType).

Parameters:

sb - the builder to append to

aNode - the element

Since:

XMLUnit 2.4.0

appendAttribute

protected void appendAttribute(StringBuilder sb,
                               Attr aNode)

Formats a placeholder for an attribute for getShortString(org.w3c.dom.Node, java.lang.String, org.xmlunit.diff.ComparisonType).

Parameters:

sb - the builder to append to

aNode - the attribute

Since:

XMLUnit 2.4.0

getDetails

public String getDetails(Comparison.Detail difference,
                         ComparisonType type,
                         boolean formatXml)

Return the xml node from Comparison.Detail.getTarget() as formatted String.

Delegates to getFullFormattedXml(org.w3c.dom.Node, org.xmlunit.diff.ComparisonType, boolean) unless the Comparison.Detail's target is null.

Specified by:

getDetails in interface ComparisonFormatter

Parameters:

difference - The Comparison.getControlDetails() or Comparison.getTestDetails().

type - the implementation can return different details depending on the ComparisonType.

formatXml - set this to true if the Comparison was generated with DiffBuilder.ignoreWhitespace() - this affects the indentation of the generated output.

Returns:

the full xml node.

getFullFormattedXml

protected String getFullFormattedXml(Node node,
                                     ComparisonType type,
                                     boolean formatXml)

Formats the node using a format suitable for the node type and comparison.

The implementation outputs the document prolog and start element for Document and DocumentType nodes and may elect to format the node's parent element rather than just the node depending on the node and comparison type. It delegates to appendFullDocumentHeader(java.lang.StringBuilder, org.w3c.dom.Document) or getFormattedNodeXml(org.w3c.dom.Node, boolean).

Parameters:

node - the node to format

type - the comparison type

formatXml - true if the Comparison was generated with DiffBuilder.ignoreWhitespace() - this affects the indentation of the generated output

Returns:

the fomatted XML

Since:

XMLUnit 2.4.0

appendFullDocumentHeader

protected void appendFullDocumentHeader(StringBuilder sb,
                                        Document doc)

Appends the XML declaration and DOCTYPE if present as well as the document's root element for getFullFormattedXml(org.w3c.dom.Node, org.xmlunit.diff.ComparisonType, boolean).

Parameters:

sb - the builder to append to

doc - the document to format

Since:

XMLUnit 2.4.0

getFormattedNodeXml

protected String getFormattedNodeXml(Node nodeToConvert,
                                     boolean formatXml)

Formats a node with the help of an identity XML transformation.

Parameters:

nodeToConvert - the node to format

formatXml - true if the Comparison was generated with DiffBuilder.ignoreWhitespace() - this affects the indentation of the generated output

Returns:

the fomatted XML

Since:

XMLUnit 2.4.0

createXmlTransformer

protected Transformer createXmlTransformer(int numberOfBlanksToIndent)
                                    throws TransformerConfigurationException

Create a default Transformer to format a XML-Node to a String.

Parameters:

numberOfBlanksToIndent - the number of spaces which is used for indent the XML-structure

Returns:

the transformer

Throws:

TransformerConfigurationException

Since:

XMLUnit 2.4.0

nodeType

protected String nodeType(short type)

Provides a display text for the constant values of the Node class that represent node types.

Parameters:

type - the node type

Returns:

the display text

Since:

XMLUnit 2.4.0