Package com.atlassian.bamboo.upgrade

Class XpathXmlUpgrader

java.lang.Object

com.atlassian.bamboo.upgrade.XpathXmlUpgrader

public class XpathXmlUpgrader
extends Object

Helper class to perform transformation of an XML file on nodes matching given XPath expression.

Constructor Summary

Constructors

Constructor	Description
XpathXmlUpgrader()

Method Summary

Modifier and Type	Method	Description
static Optional<Document>	read(File inputFile)	Read an XML document from a file.
static Optional<Document>	read(InputStream input)	Read an XML document from an input stream.
static void	transform(File file, String xPathExpression, Consumer<Node> transformation)	Read XML from file, apply transformation on nodes matching xPathExpression and write results back to the same file.
static void	visit(File file, String xPathExpression, Consumer<Node> visitor)	Read XML from file, performing actions on each visited node matching xPathExpression.
static Document	visit(Document document, String xPathExpression, Consumer<Node> visitor)	Iterate over elements of document, performing actions on each visited node matching xPathExpression.
static void	write(Document dom, File outputFile)	Write an XML document to a file.
static void	write(Document dom, OutputStream output)	Write an XML document to an output stream.

Methods inherited from class java.lang.Object

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

Constructor Details

XpathXmlUpgrader

public XpathXmlUpgrader()

Method Details

visit

public static void visit(File file,
 String xPathExpression,
 Consumer<Node> visitor)

Read XML from file, performing actions on each visited node matching xPathExpression. The visitor should not perform transformation on accepted nodes, as the modifications will not be persisted.

Parameters:

file - XML file to transform

xPathExpression - nodes to be modified

visitor - action to execute on each matching node

See Also:

• transform(File, String, Consumer)

transform

public static void transform(File file,
 String xPathExpression,
 Consumer<Node> transformation)

Read XML from file, apply transformation on nodes matching xPathExpression and write results back to the same file. Note: transformation is performed in-place, i.e. node is not being replaced by a new one.

Parameters:

file - XML file to transform

xPathExpression - nodes to be modified

transformation - how to modify nodes

See Also:

• visit(File, String, Consumer)

visit

public static Document visit(Document document,
 String xPathExpression,
 Consumer<Node> visitor)

Iterate over elements of document, performing actions on each visited node matching xPathExpression. The visitor may apply in-place transformation.

Parameters:

document - document transform

xPathExpression - nodes to be modified

visitor - action to execute on each matching node

read

public static Optional<Document> read(File inputFile)

Read an XML document from a file.

Parameters:

inputFile - XML file

Returns:

Optional<Document>

read

public static Optional<Document> read(InputStream input)

Read an XML document from an input stream.

Parameters:

input - input stream

Returns:

Optional<Document>

write

public static void write(Document dom,
 File outputFile)

Write an XML document to a file.

Parameters:

dom - document

outputFile - XML file

write

public static void write(Document dom,
 OutputStream output)

Write an XML document to an output stream.

Parameters:

dom - document

output - output stream