Package com.ctc.wstx.io

Class ReaderBootstrapper

java.lang.Object

com.ctc.wstx.io.InputBootstrapper

com.ctc.wstx.io.ReaderBootstrapper

public final class ReaderBootstrapper
extends InputBootstrapper

Input bootstrap class used when input comes from a Reader; in this case, encoding is already known, and thus encoding from XML declaration (if any) is only double-checked, not really used.

Note: since the actual Reader to use after bootstrapping is pre-constructed, the local input buffer can (and should) be quite small.

Field Summary

Fields

Modifier and Type	Field	Description
(package private) static final char	CHAR_BOM_MARKER
private char[]	mCharBuffer
(package private) final Reader	mIn	Underlying Reader to use for reading content.
(package private) final String	mInputEncoding	Encoding identifier processing application passed in; if not null, will be compared to actual xml declaration based encoding (if declaration found)
private int	mInputEnd
private int	mInputPtr

Fields inherited from class com.ctc.wstx.io.InputBootstrapper

BYTE_CR, BYTE_LF, BYTE_NULL, CHAR_CR, CHAR_LF, CHAR_NEL, CHAR_NULL, CHAR_SPACE, ERR_XMLDECL_END_MARKER, ERR_XMLDECL_EXP_ATTRVAL, ERR_XMLDECL_EXP_EQ, ERR_XMLDECL_EXP_SPACE, ERR_XMLDECL_KW_ENCODING, ERR_XMLDECL_KW_STANDALONE, ERR_XMLDECL_KW_VERSION, mDeclaredXmlVersion, mFoundEncoding, mInputProcessed, mInputRow, mInputRowStart, mKeywordBuffer, mPublicId, mStandalone, mSystemId, mXml11Handling

Constructor Summary

Constructors

Modifier	Constructor	Description
private	ReaderBootstrapper(String pubId, SystemId sysId, Reader r, String appEncoding)

Method Summary

Modifier and Type	Method	Description
Reader	bootstrapInput(ReaderConfig cfg, boolean mainDoc, int xmlVersion)	Method called to do actual bootstrapping.
protected int	checkKeyword(String exp)
int	getInputColumn()
String	getInputEncoding()	Actual character encoding used by the underlying input source; may have been passed by the application, or auto-detected by byte stream boot strapper (can not be determined from a Reader source).
int	getInputTotal()
static ReaderBootstrapper	getInstance(String pubId, SystemId sysId, Reader r, String appEncoding)
protected Location	getLocation()
protected int	getNext()
protected int	getNextAfterWs(boolean reqWs)
protected boolean	initialLoad(int minimum)
protected void	loadMore()
protected char	nextChar()
protected void	pushback()
protected int	readQuotedValue(char[] kw, int quoteChar)
protected void	skipCRLF(char lf)
protected void	verifyXmlEncoding(ReaderConfig cfg)

Methods inherited from class com.ctc.wstx.io.InputBootstrapper

declaredXml11, getDeclaredEncoding, getDeclaredVersion, getInputRow, getPublicId, getStandalone, getSystemId, initFrom, readXmlDecl, reportNull, reportUnexpectedChar, reportXmlProblem

Methods inherited from class java.lang.Object

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

Field Details

CHAR_BOM_MARKER

static final char CHAR_BOM_MARKER

See Also:

• Constant Field Values

mIn

final Reader mIn

Underlying Reader to use for reading content.

mInputEncoding

final String mInputEncoding

Encoding identifier processing application passed in; if not null, will be compared to actual xml declaration based encoding (if declaration found)

mCharBuffer

private char[] mCharBuffer

mInputPtr

private int mInputPtr

mInputEnd

private int mInputEnd

Constructor Details

ReaderBootstrapper

private ReaderBootstrapper(String pubId,
 SystemId sysId,
 Reader r,
 String appEncoding)

Method Details

getInstance

public static ReaderBootstrapper getInstance(String pubId,
 SystemId sysId,
 Reader r,
 String appEncoding)

Parameters:

r - Eventual reader that will be reading actual content, after bootstrapping finishes

appEncoding - Encoding that application declared; may be null. If not null, will be compared to actual declaration found; and incompatibility reported as a potential (but not necessarily fatal) problem.

bootstrapInput

public Reader bootstrapInput(ReaderConfig cfg,
 boolean mainDoc,
 int xmlVersion)
                      throws IOException,
XMLStreamException

Method called to do actual bootstrapping.

Specified by:

bootstrapInput in class InputBootstrapper

Parameters:

xmlVersion - Optional xml version identifier of the main parsed document (if not bootstrapping the main document). Currently only relevant for checking that XML 1.0 document does not include XML 1.1 external parsed entities. If null, no checks will be done; when bootstrapping parsing of the main document, null should be passed for this argument.

Returns:

Actual reader to use for reading xml content

Throws:

IOException

XMLStreamException

getInputEncoding

public String getInputEncoding()

Description copied from class: InputBootstrapper

Actual character encoding used by the underlying input source; may have been passed by the application, or auto-detected by byte stream boot strapper (can not be determined from a Reader source).

Specified by:

getInputEncoding in class InputBootstrapper

Returns:

Input encoding in use, if it could be determined or was passed by the calling application

getInputTotal

public int getInputTotal()

Specified by:

getInputTotal in class InputBootstrapper

Returns:

Total number of characters read from bootstrapped input (stream, reader)

getInputColumn

public int getInputColumn()

Specified by:

getInputColumn in class InputBootstrapper

verifyXmlEncoding

protected void verifyXmlEncoding(ReaderConfig cfg)
                          throws XMLStreamException

Throws:

XMLStreamException

initialLoad

protected boolean initialLoad(int minimum)
                       throws IOException

Throws:

IOException

loadMore

protected void loadMore()
                 throws IOException,
WstxException

Throws:

IOException

WstxException

pushback

protected void pushback()

Specified by:

pushback in class InputBootstrapper

getNext

protected int getNext()
               throws IOException,
WstxException

Specified by:

getNext in class InputBootstrapper

Throws:

IOException

WstxException

getNextAfterWs

protected int getNextAfterWs(boolean reqWs)
                      throws IOException,
WstxException

Specified by:

getNextAfterWs in class InputBootstrapper

Throws:

IOException

WstxException

checkKeyword

protected int checkKeyword(String exp)
                    throws IOException,
WstxException

Specified by:

checkKeyword in class InputBootstrapper

Returns:

First character that does not match expected, if any; CHAR_NULL if match succeeded

Throws:

IOException

WstxException

readQuotedValue

protected int readQuotedValue(char[] kw,
 int quoteChar)
                       throws IOException,
WstxException

Specified by:

readQuotedValue in class InputBootstrapper

Throws:

IOException

WstxException

getLocation

protected Location getLocation()

Specified by:

getLocation in class InputBootstrapper

nextChar

protected char nextChar()
                 throws IOException,
WstxException

Throws:

IOException

WstxException

skipCRLF

protected void skipCRLF(char lf)
                 throws IOException,
WstxException

Throws:

IOException

WstxException