Package org.apache.uima.cas_data.impl

Class XCasToCasDataSaxHandler

java.lang.Object

org.xml.sax.helpers.DefaultHandler

org.apache.uima.cas_data.impl.XCasToCasDataSaxHandler

All Implemented Interfaces:

org.xml.sax.ContentHandler, org.xml.sax.DTDHandler, org.xml.sax.EntityResolver, org.xml.sax.ErrorHandler

public class XCasToCasDataSaxHandler
extends org.xml.sax.helpers.DefaultHandler

A SAX ContentHandler that reads XCAS and creates a CasData.

Field Summary

Fields

Modifier and Type	Field	Description
private static int	ARRAY_ELE_CONTENT_STATE
private static int	ARRAY_ELE_STATE
private int	arrayPos
private int	arrayType
private java.lang.StringBuffer	buffer
private CasData	cas
private static int	CONTENT_STATE
private java.lang.String	currentContentFeat
private FeatureStructureImpl	currentFS
private static java.lang.String	DEFAULT_CONTENT_FEATURE
private static int	DOC_STATE
private static int	FEAT_CONTENT_STATE
private static int	FEAT_STATE
private static int	FLOAT_TYPE
private static int	FS_STATE
private static int	FS_TYPE
private static int	INT_TYPE
private org.xml.sax.Locator	locator
private static java.lang.String	reservedAttrPrefix
private int	state
private static int	STRING_TYPE
private static java.lang.String	unknownXMLSource

Constructor Summary

Constructors

Constructor	Description
XCasToCasDataSaxHandler(CasData aCasData)	Create new XCasToCasDataSaxHandler.

Method Summary

Modifier and Type	Method	Description
private void	addArrayElement(java.lang.String content)
void	characters(char[] chars, int start, int length)
private XCASParsingException	createException(int code)
private XCASParsingException	createException(int code, java.lang.String arg)
private boolean	emptyVal(java.lang.String val)
void	endDocument()
void	endElement(java.lang.String nsURI, java.lang.String localName, java.lang.String qualifiedName)
void	error(org.xml.sax.SAXParseException e)
void	fatalError(org.xml.sax.SAXParseException e)
private java.lang.String	getCasTypeName(java.lang.String aTagName)	Gets the CAS type name corresponding to an XCAS tag name.
private void	handleFeature(FeatureStructureImpl fsImpl, java.lang.String featName, java.lang.String featVal)
void	ignorableWhitespace(char[] arg0, int arg1, int arg2)
(package private) boolean	isAllWhitespace(java.lang.StringBuffer b)
private boolean	isArrayType(java.lang.String typeName)
private int[]	parseIntArray(java.lang.String val)	Parse a space-separated string into an integer array.
private void	readArray(java.lang.String type, org.xml.sax.Attributes attrs)
private void	readArrayElement(java.lang.String eleName, org.xml.sax.Attributes attrs)
private void	readFS(java.lang.String qualifiedName, org.xml.sax.Attributes attrs)
private void	readFS(FeatureStructureImpl fsImpl, org.xml.sax.Attributes attrs)
private void	resetBuffer()
void	setDocumentLocator(org.xml.sax.Locator loc)
void	startDocument()
void	startElement(java.lang.String nameSpaceURI, java.lang.String localName, java.lang.String qualifiedName, org.xml.sax.Attributes attrs)
void	warning(org.xml.sax.SAXParseException e)

Methods inherited from class org.xml.sax.helpers.DefaultHandler

endPrefixMapping, notationDecl, processingInstruction, resolveEntity, skippedEntity, startPrefixMapping, unparsedEntityDecl

Methods inherited from class java.lang.Object

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

Field Detail

DOC_STATE

private static final int DOC_STATE

See Also:

Constant Field Values

FS_STATE

private static final int FS_STATE

See Also:

Constant Field Values

FEAT_STATE

private static final int FEAT_STATE

See Also:

Constant Field Values

CONTENT_STATE

private static final int CONTENT_STATE

See Also:

Constant Field Values

FEAT_CONTENT_STATE

private static final int FEAT_CONTENT_STATE

See Also:

Constant Field Values

ARRAY_ELE_CONTENT_STATE

private static final int ARRAY_ELE_CONTENT_STATE

See Also:

Constant Field Values

ARRAY_ELE_STATE

private static final int ARRAY_ELE_STATE

See Also:

Constant Field Values

reservedAttrPrefix

private static final java.lang.String reservedAttrPrefix

See Also:

Constant Field Values

unknownXMLSource

private static final java.lang.String unknownXMLSource

See Also:

Constant Field Values

DEFAULT_CONTENT_FEATURE

private static final java.lang.String DEFAULT_CONTENT_FEATURE

See Also:

Constant Field Values

locator

private org.xml.sax.Locator locator

cas

private CasData cas

state

private int state

buffer

private java.lang.StringBuffer buffer

currentFS

private FeatureStructureImpl currentFS

currentContentFeat

private java.lang.String currentContentFeat

arrayPos

private int arrayPos

arrayType

private int arrayType

INT_TYPE

private static final int INT_TYPE

See Also:

Constant Field Values

FLOAT_TYPE

private static final int FLOAT_TYPE

See Also:

Constant Field Values

STRING_TYPE

private static final int STRING_TYPE

See Also:

Constant Field Values

FS_TYPE

private static final int FS_TYPE

See Also:

Constant Field Values

Constructor Detail

XCasToCasDataSaxHandler

public XCasToCasDataSaxHandler(CasData aCasData)

Create new XCasToCasDataSaxHandler.

Parameters:

aCasData - the CasData to which FeatureStructures parsed from XCAS will be appended

Method Detail

resetBuffer

private final void resetBuffer()

startDocument

public void startDocument()
                   throws org.xml.sax.SAXException

Specified by:

startDocument in interface org.xml.sax.ContentHandler

Overrides:

startDocument in class org.xml.sax.helpers.DefaultHandler

Throws:

org.xml.sax.SAXException

startElement

public void startElement(java.lang.String nameSpaceURI,
                         java.lang.String localName,
                         java.lang.String qualifiedName,
                         org.xml.sax.Attributes attrs)
                  throws org.xml.sax.SAXException

Specified by:

startElement in interface org.xml.sax.ContentHandler

Overrides:

startElement in class org.xml.sax.helpers.DefaultHandler

Throws:

org.xml.sax.SAXException

readArrayElement

private void readArrayElement(java.lang.String eleName,
                              org.xml.sax.Attributes attrs)
                       throws org.xml.sax.SAXParseException

Throws:

org.xml.sax.SAXParseException

readFS

private void readFS(java.lang.String qualifiedName,
                    org.xml.sax.Attributes attrs)
             throws org.xml.sax.SAXParseException

Throws:

org.xml.sax.SAXParseException

getCasTypeName

private java.lang.String getCasTypeName(java.lang.String aTagName)

Gets the CAS type name corresponding to an XCAS tag name. The type name is usually equal to the tag name, but the characters : and - are translated into the sequences _colon_ and _dash_, respectively.

Parameters:

aTagName - XCAS tag name

Returns:

CAS type name corresponding to this tag

readFS

private void readFS(FeatureStructureImpl fsImpl,
                    org.xml.sax.Attributes attrs)
             throws org.xml.sax.SAXParseException

Throws:

org.xml.sax.SAXParseException

parseIntArray

private int[] parseIntArray(java.lang.String val)

Parse a space-separated string into an integer array.

readArray

private void readArray(java.lang.String type,
                       org.xml.sax.Attributes attrs)
                throws org.xml.sax.SAXParseException

Throws:

org.xml.sax.SAXParseException

emptyVal

private final boolean emptyVal(java.lang.String val)

handleFeature

private void handleFeature(FeatureStructureImpl fsImpl,
                           java.lang.String featName,
                           java.lang.String featVal)
                    throws org.xml.sax.SAXParseException

Throws:

org.xml.sax.SAXParseException

characters

public void characters(char[] chars,
                       int start,
                       int length)
                throws org.xml.sax.SAXException

Specified by:

characters in interface org.xml.sax.ContentHandler

Overrides:

characters in class org.xml.sax.helpers.DefaultHandler

Throws:

org.xml.sax.SAXException

endElement

public void endElement(java.lang.String nsURI,
                       java.lang.String localName,
                       java.lang.String qualifiedName)
                throws org.xml.sax.SAXException

Specified by:

endElement in interface org.xml.sax.ContentHandler

Overrides:

endElement in class org.xml.sax.helpers.DefaultHandler

Throws:

org.xml.sax.SAXException

isAllWhitespace

boolean isAllWhitespace(java.lang.StringBuffer b)

addArrayElement

private void addArrayElement(java.lang.String content)
                      throws org.xml.sax.SAXParseException

Throws:

org.xml.sax.SAXParseException

endDocument

public void endDocument()
                 throws org.xml.sax.SAXException

Specified by:

endDocument in interface org.xml.sax.ContentHandler

Overrides:

endDocument in class org.xml.sax.helpers.DefaultHandler

Throws:

org.xml.sax.SAXException

createException

private XCASParsingException createException(int code)

createException

private XCASParsingException createException(int code,
                                             java.lang.String arg)

error

public void error(org.xml.sax.SAXParseException e)
           throws org.xml.sax.SAXException

Specified by:

error in interface org.xml.sax.ErrorHandler

Overrides:

error in class org.xml.sax.helpers.DefaultHandler

Throws:

org.xml.sax.SAXException

fatalError

public void fatalError(org.xml.sax.SAXParseException e)
                throws org.xml.sax.SAXException

Specified by:

fatalError in interface org.xml.sax.ErrorHandler

Overrides:

fatalError in class org.xml.sax.helpers.DefaultHandler

Throws:

org.xml.sax.SAXException

ignorableWhitespace

public void ignorableWhitespace(char[] arg0,
                                int arg1,
                                int arg2)
                         throws org.xml.sax.SAXException

Specified by:

ignorableWhitespace in interface org.xml.sax.ContentHandler

Overrides:

ignorableWhitespace in class org.xml.sax.helpers.DefaultHandler

Throws:

org.xml.sax.SAXException

setDocumentLocator

public void setDocumentLocator(org.xml.sax.Locator loc)

Specified by:

setDocumentLocator in interface org.xml.sax.ContentHandler

Overrides:

setDocumentLocator in class org.xml.sax.helpers.DefaultHandler

warning

public void warning(org.xml.sax.SAXParseException e)
             throws org.xml.sax.SAXException

Specified by:

warning in interface org.xml.sax.ErrorHandler

Overrides:

warning in class org.xml.sax.helpers.DefaultHandler

Throws:

org.xml.sax.SAXException

isArrayType

private boolean isArrayType(java.lang.String typeName)