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java.lang.Objectorg.jdom.input.SAXBuilder
SAXBuilder
builds a JDOM tree using SAX.
Information about SAX can be found at
http://www.saxproject.org.
Known issues: Relative paths for a DocType or EntityRef may be converted by the SAX parser into absolute paths.
Field Summary | |
protected JDOMFactory |
factory
The factory for creating new JDOM objects |
Constructor Summary | |
SAXBuilder()
Creates a new SAXBuilder which will attempt to first locate a parser via JAXP, then will try to use a set of default SAX Drivers. |
|
SAXBuilder(boolean validate)
Creates a new SAXBuilder which will attempt to first locate a parser via JAXP, then will try to use a set of default SAX Drivers. |
|
SAXBuilder(java.lang.String saxDriverClass)
Creates a new SAXBuilder using the specified SAX parser. |
|
SAXBuilder(java.lang.String saxDriverClass,
boolean validate)
Creates a new SAXBuilder using the specified SAX parser. |
Method Summary | |
Document |
build(java.io.File file)
This builds a document from the supplied filename. |
Document |
build(org.xml.sax.InputSource in)
This builds a document from the supplied input source. |
Document |
build(java.io.InputStream in)
This builds a document from the supplied input stream. |
Document |
build(java.io.InputStream in,
java.lang.String systemId)
This builds a document from the supplied input stream. |
Document |
build(java.io.Reader characterStream)
This builds a document from the supplied Reader. |
Document |
build(java.io.Reader characterStream,
java.lang.String systemId)
This builds a document from the supplied Reader. |
Document |
build(java.lang.String systemId)
This builds a document from the supplied URI. |
Document |
build(java.net.URL url)
This builds a document from the supplied URL. |
protected void |
configureContentHandler(SAXHandler contentHandler)
This configures the SAXHandler that will be used to build the Document. |
protected void |
configureParser(org.xml.sax.XMLReader parser,
SAXHandler contentHandler)
This configures the XMLReader to be used for reading the XML document. |
protected SAXHandler |
createContentHandler()
This creates the SAXHandler that will be used to build the Document. |
protected org.xml.sax.XMLReader |
createParser()
This creates the XMLReader to be used for reading the XML document. |
protected java.net.URL |
fileToURL(java.io.File f)
Imitation of File.toURL(), a JDK 1.2 method, reimplemented here to work with JDK 1.1. |
void |
setDTDHandler(org.xml.sax.DTDHandler dtdHandler)
This sets custom DTDHandler for the Builder . |
void |
setEntityResolver(org.xml.sax.EntityResolver entityResolver)
This sets custom EntityResolver for the Builder . |
void |
setErrorHandler(org.xml.sax.ErrorHandler errorHandler)
This sets custom ErrorHandler for the Builder . |
void |
setExpandEntities(boolean expand)
This sets whether or not to expand entities for the builder. |
void |
setFactory(JDOMFactory factory)
|
void |
setFeature(java.lang.String name,
boolean value)
This sets a feature on the SAX parser. |
void |
setIgnoringElementContentWhitespace(boolean ignoringWhite)
Specifies whether or not the parser should elminate whitespace in element content (sometimes known as "ignorable whitespace") when building the document. |
void |
setProperty(java.lang.String name,
java.lang.Object value)
This sets a property on the SAX parser. |
void |
setReuseParser(boolean reuseParser)
Specifies whether this builder shall reuse the same SAX parser when performing subsequent parses or allocate a new parser for each parse. |
void |
setValidation(boolean validate)
This sets validation for the builder. |
void |
setXMLFilter(org.xml.sax.XMLFilter xmlFilter)
This sets custom XMLFilter for the Builder . |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
protected JDOMFactory factory
Constructor Detail |
public SAXBuilder()
public SAXBuilder(boolean validate)
validate
- boolean
indicating if
validation should occur.public SAXBuilder(java.lang.String saxDriverClass)
saxDriverClass
- String
name of SAX Driver
to use for parsing.public SAXBuilder(java.lang.String saxDriverClass, boolean validate)
saxDriverClass
- String
name of SAX Driver
to use for parsing.validate
- boolean
indicating if
validation should occur.Method Detail |
public void setFactory(JDOMFactory factory)
public void setValidation(boolean validate)
validate
- boolean
indicating whether validation
should occur.public void setErrorHandler(org.xml.sax.ErrorHandler errorHandler)
Builder
.
errorHandler
- ErrorHandler
public void setEntityResolver(org.xml.sax.EntityResolver entityResolver)
Builder
.
entityResolver
- EntityResolver
public void setDTDHandler(org.xml.sax.DTDHandler dtdHandler)
Builder
.
dtdHandler
- DTDHandler
public void setXMLFilter(org.xml.sax.XMLFilter xmlFilter)
Builder
.
xmlFilter
- XMLFilter
public void setIgnoringElementContentWhitespace(boolean ignoringWhite)
false
.
ignoringWhite
- Whether to ignore ignorable whitespacepublic void setReuseParser(boolean reuseParser)
false
(i.e. no parser reuse).
Note: As SAX parser instances may not be used in multiple threads running concurrently, the parser reuse feature shall not be used with SAXBuilder instances shared among threads.
reuseParser
- Whether to reuse the SAX parser.public void setFeature(java.lang.String name, boolean value)
NOTE: SAXBuilder requires that some particular features of the SAX parser be set up in certain ways for it to work properly. The list of such features may change in the future. Therefore, the use of this method may cause parsing to break, and even if it doesn't break anything today it might break parsing in a future JDOM version, because what JDOM parsers require may change over time. Use with caution.
name
- The feature name, which is a fully-qualified URI.value
- The requested state of the feature (true or false).public void setProperty(java.lang.String name, java.lang.Object value)
NOTE: SAXBuilder requires that some particular properties of the SAX parser be set up in certain ways for it to work properly. The list of such properties may change in the future. Therefore, the use of this method may cause parsing to break, and even if it doesn't break anything today it might break parsing in a future JDOM version, because what JDOM parsers require may change over time. Use with caution.
name
- The property name, which is a fully-qualified URI.value
- The requested value for the property.public Document build(org.xml.sax.InputSource in) throws JDOMException, java.io.IOException
in
- InputSource
to read from.
Document
- resultant Document object.
JDOMException
- when errors occur in parsing.
java.io.IOException
- when an I/O error prevents a document
from being fully parsed.protected SAXHandler createContentHandler()
SAXHandler
- resultant SAXHandler object.protected void configureContentHandler(SAXHandler contentHandler)
The default implementation simply passes through some configuration settings that were set on the SAXBuilder: setExpandEntities() and setIgnoringElementContentWhitespace().
protected org.xml.sax.XMLReader createParser() throws JDOMException
The default behavior is to (1) use the saxDriverClass, if it has been set, (2) try to obtain a parser from JAXP, if it is available, and (3) if all else fails, use a hard-coded default parser (currently the Xerces parser). Subclasses may override this method to determine the parser to use in a different way.
XMLReader
- resultant XMLReader object.
JDOMException
protected void configureParser(org.xml.sax.XMLReader parser, SAXHandler contentHandler) throws JDOMException
The default implementation sets various options on the given XMLReader,
such as validation, DTD resolution, entity handlers, etc., according
to the options that were set (e.g. via setEntityResolver
)
and set various SAX properties and features that are required for JDOM
internals. These features may change in future releases, so change this
behavior at your own risk.
JDOMException
public Document build(java.io.InputStream in) throws JDOMException, java.io.IOException
This builds a document from the supplied input stream.
in
- InputStream
to read from.
Document
- resultant Document object.
JDOMException
- when errors occur in parsing.
java.io.IOException
- when an I/O error prevents a document
from being fully parsed.public Document build(java.io.File file) throws JDOMException, java.io.IOException
This builds a document from the supplied filename.
file
- File
to read from.
Document
- resultant Document object.
JDOMException
- when errors occur in parsing.
java.io.IOException
- when an I/O error prevents a document
from being fully parsed.public Document build(java.net.URL url) throws JDOMException, java.io.IOException
This builds a document from the supplied URL.
url
- URL
to read from.
Document
- resultant Document object.
JDOMException
- when errors occur in parsing.
java.io.IOException
- when an I/O error prevents a document
from being fully parsed.public Document build(java.io.InputStream in, java.lang.String systemId) throws JDOMException, java.io.IOException
This builds a document from the supplied input stream.
in
- InputStream
to read from.systemId
- base for resolving relative URIs
Document
- resultant Document object.
JDOMException
- when errors occur in parsing.
java.io.IOException
- when an I/O error prevents a document
from being fully parsed.public Document build(java.io.Reader characterStream) throws JDOMException, java.io.IOException
This builds a document from the supplied Reader. It's the programmer's responsibility to make sure the reader matches the encoding of the file. It's always safer to use an InputStream rather than a Reader, if it's available.
characterStream
- Reader
to read from.
Document
- resultant Document object.
JDOMException
- when errors occur in parsing.
java.io.IOException
- when an I/O error prevents a document
from being fully parsed.public Document build(java.io.Reader characterStream, java.lang.String systemId) throws JDOMException, java.io.IOException
This builds a document from the supplied Reader. It's the programmer's responsibility to make sure the reader matches the encoding of the file. It's always safer to use an InputStream rather than a Reader, if it's available.
characterStream
- Reader
to read from.systemId
- base for resolving relative URIs
Document
- resultant Document object.
JDOMException
- when errors occur in parsing.
java.io.IOException
- when an I/O error prevents a document
from being fully parsed.public Document build(java.lang.String systemId) throws JDOMException, java.io.IOException
This builds a document from the supplied URI.
systemId
- URI for the input
Document
- resultant Document object.
JDOMException
- when errors occur in parsing.
java.io.IOException
- when an I/O error prevents a document
from being fully parsed.protected java.net.URL fileToURL(java.io.File f) throws java.net.MalformedURLException
f
- the file to convert
java.net.MalformedURLException
File
public void setExpandEntities(boolean expand)
This sets whether or not to expand entities for the builder.
A true means to expand entities as normal content. A false means to
leave entities unexpanded as EntityRef
objects. The
default is true.
When this setting is false, the internal DTD subset is retained; when this setting is true, the internal DTD subset is not retained.
Note that Xerces (at least up to 1.4.4) has a bug where entities in attribute values will be misreported if this flag is turned off, resulting in entities to appear within element content. When turning entity expansion off either avoid entities in attribute values, or use another parser like Crimson. http://nagoya.apache.org/bugzilla/show_bug.cgi?id=6111
expand
- boolean
indicating whether entity expansion
should occur.
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