net.sf.saxon
Class JavaPlatform

java.lang.Object
  net.sf.saxon.JavaPlatform

All Implemented Interfaces:

Platform, java.io.Serializable

public class JavaPlatform

extends java.lang.Object

implements Platform

Implementation of the Platform class containing methods specific to the Java platform (as distinct from .NET)

See Also:

Serialized Form

Method Summary

boolean	canReturnCollationKeys(java.util.Comparator collation) Given a collation, determine whether it is capable of returning collation keys.
net.sf.saxon.regex.RegularExpression	compileRegularExpression(java.lang.CharSequence regex, boolean isXPath, java.lang.CharSequence flags) Create a compiled regular expression
static java.lang.String	escapeSpaces(java.lang.String s) Replace spaces by %20
java.lang.Object	getCollationKey(java.util.Comparator collation, java.lang.String value) Given a collation, get a collation key.
static JavaPlatform	getInstance()
javax.xml.transform.Source	getParserSource(javax.xml.transform.stream.StreamSource input, int validation, boolean dtdValidation, int stripspace) Convert a StreamSource to either a SAXSource or a PullSource, depending on the native parser of the selected platform
java.lang.String	getPlatformSuffix() Get a suffix letter to add to the Saxon version number to identify the platform
java.lang.String	getPlatformVersion() Get the platform version
void	initialize(Configuration config) Perform platform-specific initialization of the configuration
java.net.URI	makeAbsolute(java.lang.String relativeURI, java.lang.String base) Construct an absolute URI from a relative URI and a base URI
java.util.Comparator	makeCollation(Configuration config, java.util.Properties props) Obtain a collation with a given set of properties.
static java.lang.String	tryToExpand(java.lang.String systemId) If a system ID can't be parsed as a URL, we'll try to expand it as a relative URI using the current directory as the base URI: MHK addition.

Methods inherited from class java.lang.Object

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

Method Detail

getInstance

public static JavaPlatform getInstance()

initialize

public void initialize(Configuration config)

Perform platform-specific initialization of the configuration

Specified by:

initialize in interface Platform

makeAbsolute

public java.net.URI makeAbsolute(java.lang.String relativeURI,
                                 java.lang.String base)
                          throws java.net.URISyntaxException

Construct an absolute URI from a relative URI and a base URI

Specified by:

makeAbsolute in interface Platform

Parameters:

relativeURI - the relative URI

base - the base URI

Returns:

the absolutized URI

Throws:

java.net.URISyntaxException

escapeSpaces

public static java.lang.String escapeSpaces(java.lang.String s)

Replace spaces by %20

tryToExpand

public static java.lang.String tryToExpand(java.lang.String systemId)

If a system ID can't be parsed as a URL, we'll try to expand it as a relative URI using the current directory as the base URI: MHK addition.

getPlatformVersion

public java.lang.String getPlatformVersion()

Get the platform version

Specified by:

getPlatformVersion in interface Platform

getPlatformSuffix

public java.lang.String getPlatformSuffix()

Get a suffix letter to add to the Saxon version number to identify the platform

Specified by:

getPlatformSuffix in interface Platform

getParserSource

public javax.xml.transform.Source getParserSource(javax.xml.transform.stream.StreamSource input,
                                                  int validation,
                                                  boolean dtdValidation,
                                                  int stripspace)

Convert a StreamSource to either a SAXSource or a PullSource, depending on the native parser of the selected platform

Specified by:

getParserSource in interface Platform

Parameters:

input - the supplied StreamSource

validation -

dtdValidation -

stripspace -

Returns:

the PullSource or SAXSource, initialized with a suitable parser, or the original input Source, if now special handling is required or possible. This implementation always returns the original input unchanged.

compileRegularExpression

public net.sf.saxon.regex.RegularExpression compileRegularExpression(java.lang.CharSequence regex,
                                                                     boolean isXPath,
                                                                     java.lang.CharSequence flags)
                                                              throws XPathException

Create a compiled regular expression

Specified by:

compileRegularExpression in interface Platform

Parameters:

regex - the source text of the regular expression, in XML Schema or XPath syntax

isXPath - set to true if this is an XPath regular expression, false if it is XML Schema

flags - the flags argument as supplied to functions such as fn:matches(), in string form

Returns:

the compiled regular expression

Throws:

XPathException - if the syntax of the regular expression or flags is incorrect

makeCollation

public java.util.Comparator makeCollation(Configuration config,
                                          java.util.Properties props)
                                   throws XPathException

Obtain a collation with a given set of properties. The set of properties is extensible and variable across platforms. Common properties with example values include lang=ed-GB, strength=primary, case-order=upper-first, ignore-modifiers=yes, alphanumeric=yes. Properties that are not supported are generally ignored; however some errors, such as failing to load a requested class, are fatal.

Specified by:

makeCollation in interface Platform

Parameters:

config - the configuration object

props - the desired properties of the collation

Returns:

a collation with these properties

Throws:

XPathException - if a fatal error occurs

canReturnCollationKeys

public boolean canReturnCollationKeys(java.util.Comparator collation)

Given a collation, determine whether it is capable of returning collation keys. The essential property of collation keys is that if two values are equal under the collation, then the collation keys are equal under the equals() method.

Specified by:

canReturnCollationKeys in interface Platform

Parameters:

collation - the collation, provided as a Comparator

Returns:

true if this collation can supply collation keys

getCollationKey

public java.lang.Object getCollationKey(java.util.Comparator collation,
                                        java.lang.String value)

Given a collation, get a collation key. The essential property of collation keys is that if two values are equal under the collation, then the collation keys are compare correctly under the compareTo method.

Specified by:

getCollationKey in interface Platform

Returns:

a representation of the collation key, such that two collation keys are equal() if and only if the string values they represent are equal under the specified collation.

Throws:

java.lang.ClassCastException - if the collation is not one that is capable of supplying collation keys (this should have been checked in advance)