QgsGmlSchema Class Reference

#include <qgsgmlschema.h>

Collaboration diagram for QgsGmlSchema:

List of all members.

Public Member Functions
	QgsGmlSchema ()
	~QgsGmlSchema ()
QList< QgsField >	fields (const QString &typeName)
	Get map of fields parsed from XSD by parseXSD.
QStringList	geometryAttributes (const QString &typeName)
	Get list of geometry attributes for type/class name.
bool	guessSchema (const QByteArray &data)
	Guess GML schema from data if XSD does not exist.
bool	parseXSD (const QByteArray &xml)
	Get fields info from XSD.
QStringList	typeNames () const
	Get list of dot separated paths to feature classes parsed from GML or XSD.
Private Types
enum	ParseMode {   none, boundingBox, featureMember, feature,   attribute, geometry }
Private Member Functions
void	characters (const XML_Char *chars, int len)
QDomElement	domElement (const QDomElement &element, const QString &path)
	Get dom element by path.
QDomElement	domElement (const QDomElement &element, const QString &path, const QString &attr, const QString &attrVal)
	Get dom element by path and attribute value.
QList< QDomElement >	domElements (const QDomElement &element, const QString &path)
	Get dom elements by path.
QList< QDomElement >	domElements (QList< QDomElement > &elements, const QString &attr, const QString &attrVal)
	Filter list of elements by attribute value.
void	endElement (const XML_Char *el)
QWidget *	findMainWindow () const
	Returns pointer to main window or 0 if it does not exist.
ParseMode	modeStackPop ()
	Safely (if empty) pop from mode stack.
ParseMode	modeStackTop ()
	Get safely (if empty) top from mode stack.
QString	readAttribute (const QString &attributeName, const XML_Char **attr) const
	Reads attribute as string.
void	startElement (const XML_Char *el, const XML_Char **attr)
	XML handler methods.
QString	stripNS (const QString &name)
	Strip namespace from element name.
QString	xsdComplexTypeGmlBaseType (const QDomElement &element, const QString &name)
	Find GML base type for complex type of given name.
bool	xsdFeatureClass (const QDomElement &element, const QString &typeName, QgsGmlFeatureClass &featureClass)
	Get feature class information from complex type recursively.
Static Private Member Functions
static void	chars (void *data, const XML_Char *chars, int len)
static void	end (void *data, const XML_Char *el)
static void	start (void *data, const XML_Char *el, const XML_Char **attr)
Private Attributes
QString	mAttributeName
QString	mCoordinateSeparator
	Coordinate separator for coordinate strings.
QgsFeature *	mCurrentFeature
QString	mCurrentFeatureId
QString	mCurrentFeatureName
QMap< QString, QgsGmlFeatureClass >	mFeatureClassMap
int	mFeatureCount
QStringList	mGeometryTypes
int	mLevel
	Depth level, root element is 0.
QStack< ParseMode >	mParseModeStack
	Keep track about the most important nested elements.
QStringList	mParsePathStack
	Path to current level.
int	mSkipLevel
	Skip all levels under this.
QString	mStringCash
	This contains the character data if an important element has been encountered.
QString	mTupleSeparator
	Tuple separator for coordinate strings.

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Detailed Description

Definition at line 74 of file qgsgmlschema.h.

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Member Enumeration Documentation

enum QgsGmlSchema::ParseMode [private]

Enumerator:

none
boundingBox
featureMember
feature
attribute
geometry

Definition at line 105 of file qgsgmlschema.h.

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Constructor & Destructor Documentation

QgsGmlSchema::QgsGmlSchema

(

)

Definition at line 59 of file qgsgmlschema.cpp.

References mGeometryTypes.

QgsGmlSchema::~QgsGmlSchema

(

)

Definition at line 67 of file qgsgmlschema.cpp.

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Member Function Documentation

void QgsGmlSchema::characters	(	const XML_Char *	chars,
		int	len
	)		[private]

Definition at line 500 of file qgsgmlschema.cpp.

References attribute, mLevel, modeStackTop(), mSkipLevel, and mStringCash.

static void QgsGmlSchema::chars	(	void *	data,
		const XML_Char *	chars,
		int	len
	)		[inline, static, private]

Definition at line 127 of file qgsgmlschema.h.

Referenced by guessSchema().

QDomElement QgsGmlSchema::domElement	(	const QDomElement &	element,
		const QString &	path
	)		[private]

Get dom element by path.

Definition at line 306 of file qgsgmlschema.cpp.

References domElements().

Referenced by xsdComplexTypeGmlBaseType(), and xsdFeatureClass().

QDomElement QgsGmlSchema::domElement	(	const QDomElement &	element,
		const QString &	path,
		const QString &	attr,
		const QString &	attrVal
	)		[private]

Get dom element by path and attribute value.

Definition at line 324 of file qgsgmlschema.cpp.

References domElements().

QList< QDomElement > QgsGmlSchema::domElements	(	const QDomElement &	element,
		const QString &	path
	)		[private]

Get dom elements by path.

Definition at line 272 of file qgsgmlschema.cpp.

References stripNS().

Referenced by domElement(), parseXSD(), and xsdFeatureClass().

QList< QDomElement > QgsGmlSchema::domElements	(	QList< QDomElement > &	elements,
		const QString &	attr,
		const QString &	attrVal
	)		[private]

Filter list of elements by attribute value.

Definition at line 311 of file qgsgmlschema.cpp.

static void QgsGmlSchema::end	(	void *	data,
		const XML_Char *	el
	)		[inline, static, private]

Definition at line 123 of file qgsgmlschema.h.

Referenced by guessSchema().

void QgsGmlSchema::endElement

(

const XML_Char *

el

)

[private]

Definition at line 419 of file qgsgmlschema.cpp.

References attribute, featureMember, fields(), geometryAttributes(), GML_NAMESPACE, mAttributeName, MathUtils::max(), mCurrentFeatureName, mFeatureClassMap, mLevel, modeStackPop(), modeStackTop(), mParseModeStack, mParsePathStack, mSkipLevel, mStringCash, NS_SEPARATOR, QgsDebugMsgLevel, QgsField::setType(), and QgsField::type().

QList< QgsField > QgsGmlSchema::fields

(

const QString &

typeName

)

Get map of fields parsed from XSD by parseXSD.

Get fields for type/class name parsed from GML or XSD

Definition at line 521 of file qgsgmlschema.cpp.

References mFeatureClassMap.

Referenced by endElement().

QWidget* QgsGmlSchema::findMainWindow

(

)

const [private]

Returns pointer to main window or 0 if it does not exist.

QStringList QgsGmlSchema::geometryAttributes

(

const QString &

typeName

)

Get list of geometry attributes for type/class name.

Definition at line 527 of file qgsgmlschema.cpp.

References mFeatureClassMap.

Referenced by endElement(), and startElement().

bool QgsGmlSchema::guessSchema

(

const QByteArray &

data

)

Guess GML schema from data if XSD does not exist.

Currently only recognizes UMN Mapserver GetFeatureInfo GML response.

Parameters:

data

GML data

Returns:

true in case of success

Definition at line 330 of file qgsgmlschema.cpp.

References chars(), end(), MathUtils::max(), mLevel, mSkipLevel, NS_SEPARATOR, QgsDebugMsg, and start().

ParseMode QgsGmlSchema::modeStackPop

(

)

[inline, private]

Safely (if empty) pop from mode stack.

Definition at line 171 of file qgsgmlschema.h.

Referenced by endElement().

ParseMode QgsGmlSchema::modeStackTop

(

)

[inline, private]

Get safely (if empty) top from mode stack.

Definition at line 168 of file qgsgmlschema.h.

Referenced by characters(), endElement(), and startElement().

bool QgsGmlSchema::parseXSD

(

const QByteArray &

xml

)

Get fields info from XSD.

Definition at line 86 of file qgsgmlschema.cpp.

References domElements(), mFeatureClassMap, stripNS(), xsdComplexTypeGmlBaseType(), and xsdFeatureClass().

QString QgsGmlSchema::readAttribute	(	const QString &	attributeName,
		const XML_Char **	attr
	)		const [private]

Reads attribute as string.

Returns:

attribute value or an empty string if no such attribute

Definition at line 72 of file qgsgmlschema.cpp.

static void QgsGmlSchema::start	(	void *	data,
		const XML_Char *	el,
		const XML_Char **	attr
	)		[inline, static, private]

Definition at line 119 of file qgsgmlschema.h.

Referenced by guessSchema().

void QgsGmlSchema::startElement	(	const XML_Char *	el,
		const XML_Char **	attr
	)		[private]

XML handler methods.

Definition at line 344 of file qgsgmlschema.cpp.

References attribute, feature, featureMember, geometryAttributes(), GML_NAMESPACE, mAttributeName, mCurrentFeatureName, mFeatureClassMap, mGeometryTypes, mLevel, modeStackTop(), mParseModeStack, mParsePathStack, mSkipLevel, mStringCash, NS_SEPARATOR, and QgsDebugMsgLevel.

QString QgsGmlSchema::stripNS

(

const QString &

name

)

[private]

Strip namespace from element name.

Definition at line 267 of file qgsgmlschema.cpp.

Referenced by domElements(), parseXSD(), xsdComplexTypeGmlBaseType(), and xsdFeatureClass().

QStringList QgsGmlSchema::typeNames

(

)

const

Get list of dot separated paths to feature classes parsed from GML or XSD.

Definition at line 516 of file qgsgmlschema.cpp.

References mFeatureClassMap.

QString QgsGmlSchema::xsdComplexTypeGmlBaseType	(	const QDomElement &	element,
		const QString &	name
	)		[private]

Find GML base type for complex type of given name.

Parameters:

element	input element
name	complex type name

Returns:

name of GML base type without NS, e.g. AbstractFeatureType or empty string if not passed on GML type

Definition at line 244 of file qgsgmlschema.cpp.

References domElement(), and stripNS().

Referenced by parseXSD().

bool QgsGmlSchema::xsdFeatureClass	(	const QDomElement &	element,
		const QString &	typeName,
		QgsGmlFeatureClass &	featureClass
	)		[private]

Get feature class information from complex type recursively.

Definition at line 129 of file qgsgmlschema.cpp.

References domElement(), domElements(), QgsGmlFeatureClass::fields(), QgsGmlFeatureClass::geometryAttributes(), mGeometryTypes, QgsDebugMsg, and stripNS().

Referenced by parseXSD().

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Member Data Documentation

QString QgsGmlSchema::mAttributeName [private]

Definition at line 181 of file qgsgmlschema.h.

Referenced by endElement(), and startElement().

QString QgsGmlSchema::mCoordinateSeparator [private]

Coordinate separator for coordinate strings.

Usually ","

Definition at line 183 of file qgsgmlschema.h.

QgsFeature* QgsGmlSchema::mCurrentFeature [private]

Definition at line 178 of file qgsgmlschema.h.

QString QgsGmlSchema::mCurrentFeatureId [private]

Definition at line 179 of file qgsgmlschema.h.

QString QgsGmlSchema::mCurrentFeatureName [private]

Definition at line 198 of file qgsgmlschema.h.

Referenced by endElement(), and startElement().

QMap<QString, QgsGmlFeatureClass> QgsGmlSchema::mFeatureClassMap [private]

Definition at line 204 of file qgsgmlschema.h.

Referenced by endElement(), fields(), geometryAttributes(), parseXSD(), startElement(), and typeNames().

int QgsGmlSchema::mFeatureCount [private]

Definition at line 180 of file qgsgmlschema.h.

QStringList QgsGmlSchema::mGeometryTypes [private]

Definition at line 201 of file qgsgmlschema.h.

Referenced by QgsGmlSchema(), startElement(), and xsdFeatureClass().

int QgsGmlSchema::mLevel [private]

Depth level, root element is 0.

Definition at line 190 of file qgsgmlschema.h.

Referenced by characters(), endElement(), guessSchema(), and startElement().

QStack<ParseMode> QgsGmlSchema::mParseModeStack [private]

Keep track about the most important nested elements.

Definition at line 175 of file qgsgmlschema.h.

Referenced by endElement(), and startElement().

QStringList QgsGmlSchema::mParsePathStack [private]

Path to current level.

Definition at line 196 of file qgsgmlschema.h.

Referenced by endElement(), and startElement().

int QgsGmlSchema::mSkipLevel [private]

Skip all levels under this.

Definition at line 193 of file qgsgmlschema.h.

Referenced by characters(), endElement(), guessSchema(), and startElement().

QString QgsGmlSchema::mStringCash [private]

This contains the character data if an important element has been encountered.

Definition at line 177 of file qgsgmlschema.h.

Referenced by characters(), endElement(), and startElement().

QString QgsGmlSchema::mTupleSeparator [private]

Tuple separator for coordinate strings.

Usually " "

Definition at line 185 of file qgsgmlschema.h.

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The documentation for this class was generated from the following files:

• src/core/qgsgmlschema.h
• src/core/qgsgmlschema.cpp