Package com.github.oowekyala.ooxml.messages

package com.github.oowekyala.ooxml.messages

Simple API to produce nice error messages when reading an XML file.

Use

invalid reference

XmlErrorUtils::parse

to get an instance of an XmlPositioner. This object is used to associate Nodes with their location, and create message entries (under the form of an XmlException) featuring context information.

For example, if an XML parse exception occurs, instead of

javax.xml.transform.TransformerException: The entity "amb" was referenced, but not declared.

the exception has the following message:

XML parsing error (in /some/file.xml)
    1| <?xml version="1.0" encoding="UTF-8" standalone="no"?>
    2| <list>
    3|     <list foo="&amb;"/>
                           ^ The entity "amb" was referenced, but not declared.

    4| </list>

or

Error at /some/file.xml:3:21 - The entity "amb" was referenced, but not declared.

if you use eg NiceXmlMessageFormatter.SINGLE_LINE.

This API is also useful to validate an XML file after it's parsed, and emit targeted error messages that come with the same kind of file help. See XmlMessageReporter.

XmlPositioner is meant as a low-level utility, to build helpers such as XmlMessageReporter.

Related Packages

Package	Description
com.github.oowekyala.ooxml

Class	Description
AccumulatingMessageHandler	Accumulates messages and does not display them until the reporter is closed.
Annots
Annots.Nullable
Annots.OneBased
Annots.ZeroBased
ContextLines	Helper object that contains the lines around a specific XmlPosition.
ErrorCleaner
FullFilePositioner	Scanner with known document context.
InternalUtil
MessageUtil
NewOffsetScanner	Lazy offset scanner that only scans required nodes.
NiceXmlMessageFormatter	Formats a NiceXmlMessageSpec to make the full message of an XmlException.
NiceXmlMessageSpec
OoxmlFacade	Main entry point of the API.
PartialFilePositioner
PositionedXmlDoc	A simple pair of a parsed Document and an XmlPositioner that can position its nodes.
PrintStreamMessageHandler	Implements XmlMessageHandler with a pair of PrintStreams.
SpyInputSource
SpyInputSource.TeeReader
TerminalColor	ANSI escape sequences for colors, to style text in terminal environments.
TextDoc
XmlException	Generic XML exception wrapper.
XmlMessageHandler	Handles XML messages, for example forwarding them to a print stream.
XmlMessageReporter<M>	Reports errors in an XML document.
XmlMessageReporterBase<M>	Base implementation of XmlMessageReporter.
XmlPosition	Represents the location of an XML node in a file.
XmlPositioner	Associates XML nodes with a position.
XmlSeverity	Severity of a message.