Class Serializer
- java.lang.Object
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- net.sf.saxon.s9api.AbstractDestination
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- net.sf.saxon.s9api.Serializer
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- All Implemented Interfaces:
Destination
public class Serializer extends AbstractDestination
ASerializer
takes a tree representation of XML and turns it into lexical XML markup.To construct a
Serializer
, use the factory methodProcessor.newSerializer(File)
.Note that this is XML serialization in the sense of the W3C XSLT and XQuery specifications. This has nothing to do with the serialization of Java objects, or the
Serializable
interface.The serialization may be influenced by a number of serialization parameters. A parameter has a name, which is an instance of
Serializer.Property
, and a value, which is expressed as a string. The effect of most of the properties is as described in the W3C specification XSLT 3.0 and XQuery 3.1 Serialization. Saxon supports all the serialization parameters defined in that specification, together with some additional parameters, whose property names are prefixed "SAXON_".A
Serializer
may also be created from anXslt30Transformer
using the methodXslt30Transformer.newSerializer()
or one of its variants. In this case the serializer is initialized with properties taken from the default output declaration in the stylesheet.Serialization parameters defined via this interface take precedence over any serialization parameters supplied when
getReceiver(net.sf.saxon.event.PipelineConfiguration, net.sf.saxon.serialize.SerializationProperties)
is called. ThegetReceiver(net.sf.saxon.event.PipelineConfiguration, net.sf.saxon.serialize.SerializationProperties)
method is supplied with parameters derived from the query or stylesheet, which are merged with the parameters set on thisSerializer
.Changed in 9.9 so the
Serializer
now only holds one set of output properties. Additional serialization properties can be supplied whengetReceiver(PipelineConfiguration, SerializationProperties)
is called, but these are not stored within theSerializer
itself.
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Nested Class Summary
Nested Classes Modifier and Type Class Description static class
Serializer.Property
Enumeration class defining the permitted serialization properties
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Field Summary
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Fields inherited from class net.sf.saxon.s9api.AbstractDestination
helper
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Constructor Summary
Constructors Modifier Constructor Description protected
Serializer(Processor processor)
Create a Serializer belonging to a specific processor
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description void
close()
Close any resources associated with this destination.java.util.Properties
getCombinedOutputProperties(java.util.Properties defaultOutputProperties)
Create a Properties object holding the defined serialization properties.org.xml.sax.ContentHandler
getContentHandler()
Get a ContentHandler that can be used to direct the output of a SAX parser (or other source of SAX events) to this serializer.protected java.util.Properties
getLocallyDefinedProperties()
Create a Properties object holding the serialization properties explicitly declared within this Serializer object, and not including any defaults taken from the stylesheet or query.java.lang.Object
getOutputDestination()
Get the current output destination.java.lang.String
getOutputProperty(QName property)
Get the value of a serialization property.java.lang.String
getOutputProperty(Serializer.Property property)
Get the value of a serialization propertyProcessor
getProcessor()
Get the Processor associated with this Serializer.static Serializer.Property
getProperty(QName name)
Get the Property with a given QNameReceiver
getReceiver(PipelineConfiguration pipe, SerializationProperties params)
Return a receiver to which Saxon will send events.protected javax.xml.transform.Result
getResult()
Get the JAXP StreamResult object representing the output destination of this serializerSerializationProperties
getSerializationProperties()
Create aSerializationProperties
object holding the serialization properties explicitly declared within this Serializer object (including any character map index), and not including any defaults taken from the stylesheet or query.StreamWriterToReceiver
getXMLStreamWriter()
Get an XMLStreamWriter that can be used for writing application-generated XML to be output via this serializer.boolean
isMustCloseAfterUse()
void
serialize(javax.xml.transform.Source source)
Serialize an arbitrary JAXP Source to the selected output destination using this serializer.void
serializeNode(XdmNode node)
Serialize an XdmNode to the selected output destination using this serializerjava.lang.String
serializeNodeToString(XdmNode node)
Serialize an XdmNode to a string using this serializerjava.lang.String
serializeToString(javax.xml.transform.Source source)
Serialize an arbitrary JAXP Source to a string using this serializer.void
serializeXdmValue(XdmValue value)
Serialize an arbitrary XdmValue to the selected output destination using this serializer.void
setCharacterMap(CharacterMapIndex characterMap)
Set a character map to be used; more specifically, supply a set of named character mapsvoid
setCloseOnCompletion(boolean value)
Say if the output stream should be closed on completion By default the close method closes the output stream only when the serializer created the output stream itself that is when the destination has been suppplied as a file rather than a stream.void
setOutputFile(java.io.File file)
Set the destination of the serialized output, as a File.void
setOutputProperties(java.util.Properties suppliedProperties)
Set output properties, from aProperties
object.void
setOutputProperties(SerializationProperties suppliedProperties)
Set output properties, from anSerializationProperties
object.void
setOutputProperty(QName property, java.lang.String value)
Set the value of a serialization property.void
setOutputProperty(Serializer.Property property, java.lang.String value)
Set the value of a serialization property.void
setOutputStream(java.io.OutputStream stream)
Set the destination of the serialized output, as an OutputStream.void
setOutputWriter(java.io.Writer writer)
Set the destination of the serialized output, as a Writer.void
setProcessor(Processor processor)
Set the Processor associated with this Serializer.-
Methods inherited from class net.sf.saxon.s9api.AbstractDestination
closeAndNotify, getDestinationBaseURI, onClose, setDestinationBaseURI
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Constructor Detail
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Serializer
protected Serializer(Processor processor)
Create a Serializer belonging to a specific processor- Parameters:
processor
- the processor associated with the Serializer. Must not be null.
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Method Detail
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setProcessor
public void setProcessor(Processor processor)
Set the Processor associated with this Serializer. This will be called automatically if the serializer is created using one of theProcessor.newSerializer()
methods.- Parameters:
processor
- the associated Processor (must not be null)- Since:
- 9.3
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getProcessor
public Processor getProcessor()
Get the Processor associated with this Serializer.- Returns:
- the associated Processor. Never null.
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setOutputProperties
public void setOutputProperties(java.util.Properties suppliedProperties)
Set output properties, from aProperties
object. The keys in the suppliedProperties
object are QNames in Clark format, that is "{uri}local"; any QNames within the values must also be in this format.- Parameters:
suppliedProperties
- the output properties to be used. These overwrite any properties that have been individually specified usingsetOutputProperty(Property, String)
setOutputProperty}
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setOutputProperties
public void setOutputProperties(SerializationProperties suppliedProperties)
Set output properties, from anSerializationProperties
object. The keys in the containedProperties
object are QNames in Clark format, that is "{uri}local"; any QNames within the values must also be in this format.The values supplied are typically those specified in the stylesheet or query. In the case of XSLT, they are typically the properties associated with unnamed xsl:output declarations.
- Parameters:
suppliedProperties
- the output properties to be used. These overwrite any properties that have been individually specified usingsetOutputProperty(Property, String)
setOutputProperty}- Since:
- 9.9
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setCloseOnCompletion
public void setCloseOnCompletion(boolean value)
Say if the output stream should be closed on completion By default the close method closes the output stream only when the serializer created the output stream itself that is when the destination has been suppplied as a file rather than a stream.- Parameters:
value
- - if true the output file will be closed when the close method is called if false the close method has no effect.
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setCharacterMap
public void setCharacterMap(CharacterMapIndex characterMap)
Set a character map to be used; more specifically, supply a set of named character maps- Parameters:
characterMap
- a set of named character maps. A character map in this set will only be used if the name of the character map is added to the value of theSerializer.Property.USE_CHARACTER_MAPS
serialization property. The character maps in this index are added to the existing set of character maps known to the serializer, unless they have the same names as existing character maps, in which case the new one overwrites the old.
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setOutputProperty
public void setOutputProperty(Serializer.Property property, java.lang.String value)
Set the value of a serialization property. Any existing value of the property is overridden. If the supplied value is null, any existing value of the property is removed.Example:
serializer.setOutputProperty(Serializer.Property.METHOD, "xml");
Any serialization properties supplied via this interface take precedence over serialization properties defined in the source stylesheet or query, including properties set dynamically using xsl:result-document. However, they only affect the principal output of a transformation; the serialization of secondary result documents is controlled using an
OutputURIResolver
.- Parameters:
property
- The name of the property to be setvalue
- The value of the property, as a string. The format is generally as defined in thexsl:output
declaration in XSLT: this means that boolean properties, for example, are represented using the strings "yes" and "no". Properties whose values are QNames, such ascdata-section-elements
are expressed using the Clark representation of a QName, that is "{uri}local". Multi-valued properties (again,cdata-section-elements
is an example) are expressed as a space-separated list.- Throws:
java.lang.IllegalArgumentException
- if the value of the property is invalid. The property is validated individually; invalid combinations of properties will be detected only when the properties are actually used to serialize an XML event stream.
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getOutputProperty
public java.lang.String getOutputProperty(Serializer.Property property)
Get the value of a serialization property- Parameters:
property
- the name of the required property. This method only considers properties explicitly set on this Serialized object, it does not return values obtained from the stylesheet or query.- Returns:
- the value of the required property as a string, or null if the property has not been given any value.
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setOutputProperty
public void setOutputProperty(QName property, java.lang.String value)
Set the value of a serialization property. Any existing value of the property is overridden. If the supplied value is null, any existing value of the property is removed.Example:
serializer.setOutputProperty(new QName("method"), "xml");
Any serialization properties supplied via this interface take precedence over serialization properties defined in the source stylesheet or query.
Unlike the method
setOutputProperty(Property, String)
, this method allows properties to be set whose names are not in the standard set of property names defined in the W3C specifications, nor in a recognized Saxon extension. This enables properties to be set for use by a custom serialization method.- Parameters:
property
- The name of the property to be setvalue
- The value of the property, as a string. The format is generally as defined in thexsl:output
declaration in XSLT: this means that boolean properties, for example, are represented using the strings "yes" and "no". Properties whose values are QNames, such ascdata-section-elements
are expressed using the Clark representation of a QName, that is "{uri}local". Multi-valued properties (again,cdata-section-elements
is an example) are expressed as a space-separated list.- Throws:
java.lang.IllegalArgumentException
- if the value of the property is invalid. The property is validated individually; invalid combinations of properties will be detected only when the properties are actually used to serialize an XML event stream. No validation occurs unless the property name is either in no namespace, or in the Saxon namespace
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getOutputProperty
public java.lang.String getOutputProperty(QName property)
Get the value of a serialization property.Unlike the method
getOutputProperty(Property)
, this method allows properties to be read whose names are not in the standard set of property names defined in the W3C specifications, nor in a recognized Saxon extension. This enables properties to be set for use by a custom serialization method.- Parameters:
property
- the name of the required property- Returns:
- the value of the required property as a string, or null if the property has not been given any value.
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setOutputWriter
public void setOutputWriter(java.io.Writer writer)
Set the destination of the serialized output, as a Writer.Note that when this option is used, the serializer does not perform character encoding. This also means that it never replaces special characters with XML numeric character references. The final encoding is the responsibility of the supplied Writer.
Closing the writer after use is the responsibility of the caller.
Calling this method has the side-effect of setting the OutputStream and OutputFile to null.
- Parameters:
writer
- the Writer to which the serialized XML output will be written.
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setOutputStream
public void setOutputStream(java.io.OutputStream stream)
Set the destination of the serialized output, as an OutputStream.Closing the output stream after use is the responsibility of the caller.
Calling this method has the side-effect of setting the OutputWriter and OutputFile to null.
- Parameters:
stream
- the OutputStream to which the serialized XML output will be written.
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setOutputFile
public void setOutputFile(java.io.File file)
Set the destination of the serialized output, as a File.Calling this method has the side-effect of setting the current OutputWriter and OutputStream to null.
This method sets the destination base URI to the URI corresponding to the name of the supplied file.
- Parameters:
file
- the File to which the serialized XML output will be written.
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serializeNode
public void serializeNode(XdmNode node) throws SaxonApiException
Serialize an XdmNode to the selected output destination using this serializer- Parameters:
node
- The node to be serialized- Throws:
java.lang.IllegalStateException
- if no outputStream, Writer, or File has been supplied as the destination for the serialized outputSaxonApiException
- if a serialization error or I/O error occurs- Since:
- 9.3
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serializeXdmValue
public void serializeXdmValue(XdmValue value) throws SaxonApiException
Serialize an arbitrary XdmValue to the selected output destination using this serializer. The supplied sequence is first wrapped in a document node according to the rules given in section 2 (Sequence Normalization) of the XSLT/XQuery serialization specification; the resulting document nodes is then serialized using the serialization parameters defined in this serializer.- Parameters:
value
- The value to be serialized- Throws:
java.lang.IllegalStateException
- if no outputStream, Writer, or File has been supplied as the destination for the serialized outputSaxonApiException
- if a serialization error or I/O error occurs- Since:
- 9.3
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serialize
public void serialize(javax.xml.transform.Source source) throws SaxonApiException
Serialize an arbitrary JAXP Source to the selected output destination using this serializer. The supplied sequence is first wrapped in a document node according to the rules given in section 2 (Sequence Normalization) of the XSLT/XQuery serialization specification; the resulting document nodes is then serialized using the serialization parameters defined in this serializer.- Parameters:
source
- The value to be serialized- Throws:
java.lang.IllegalStateException
- if no outputStream, Writer, or File has been supplied as the destination for the serialized outputSaxonApiException
- if a serialization error or I/O error occurs- Since:
- 10.0
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serializeToString
public java.lang.String serializeToString(javax.xml.transform.Source source) throws SaxonApiException
Serialize an arbitrary JAXP Source to a string using this serializer. The supplied sequence is first wrapped in a document node according to the rules given in section 2 (Sequence Normalization) of the XSLT/XQuery serialization specification; the resulting document nodes is then serialized using the serialization parameters defined in this serializer.- Parameters:
source
- The value to be serialized- Returns:
- the serialized result, as a string
- Throws:
SaxonApiException
- if a serialization error or I/O error occurs- Since:
- 10.0
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serializeNodeToString
public java.lang.String serializeNodeToString(XdmNode node) throws SaxonApiException
Serialize an XdmNode to a string using this serializer- Parameters:
node
- The node to be serialized- Returns:
- the serialized representation of the node as lexical XML
- Throws:
SaxonApiException
- if a serialization error occurs- Since:
- 9.3
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getXMLStreamWriter
public StreamWriterToReceiver getXMLStreamWriter() throws SaxonApiException
Get an XMLStreamWriter that can be used for writing application-generated XML to be output via this serializer.- Returns:
- a newly constructed XMLStreamWriter that pipes events into this Serializer
- Throws:
SaxonApiException
- if any other failure occurs- Since:
- 9.3
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getContentHandler
public org.xml.sax.ContentHandler getContentHandler() throws SaxonApiException
Get a ContentHandler that can be used to direct the output of a SAX parser (or other source of SAX events) to this serializer.- Returns:
- a newly constructed ContentHandler that pipes events into this Serializer
- Throws:
SaxonApiException
- if any other failure occurs- Since:
- 9.7
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getOutputDestination
public java.lang.Object getOutputDestination()
Get the current output destination.- Returns:
- an OutputStream, Writer, or File, depending on the previous calls to
setOutputStream(java.io.OutputStream)
,setOutputWriter(java.io.Writer)
, orsetOutputFile(java.io.File)
; or null, if no output destination has been set up.
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getReceiver
public Receiver getReceiver(PipelineConfiguration pipe, SerializationProperties params) throws SaxonApiException
Return a receiver to which Saxon will send events. This method is provided primarily for internal use, though it could also be called by user applications wanting to make use of the Saxon serializer.- Parameters:
pipe
- The Saxon configuration. This is an internal implementation object held within theProcessor
params
- Serialization parameters originating from the query or stylesheet (for example, xsl:output declarations or xsl:result-document attributes). These parameters are combined with those held by thisSerializer
itself, with properties set of theSerializer
taking precedence.- Returns:
- a receiver to which XML events will be sent
- Throws:
SaxonApiException
- if the Receiver cannot be created
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getCombinedOutputProperties
public java.util.Properties getCombinedOutputProperties(java.util.Properties defaultOutputProperties)
Create a Properties object holding the defined serialization properties. This will be in the same format as JAXP interfaces such asTransformer.getOutputProperties()
- Returns:
- a newly-constructed Properties object holding the declared serialization properties. Specifically, it holds the properties defined explicitly on this Serializer object, backed by the properties defined in unnamed xsl:output declarations in the stylesheet, or output declarations in XQuery.
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getLocallyDefinedProperties
protected java.util.Properties getLocallyDefinedProperties()
Create a Properties object holding the serialization properties explicitly declared within this Serializer object, and not including any defaults taken from the stylesheet or query.- Returns:
- a newly-constructed Properties object holding the declared serialization properties. Specifically, it holds the properties defined explicitly on this Serializer object, and excludes any properties defined in named or unnamed xsl:output declarations in the stylesheet, or the equivalent in XQuery.
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getSerializationProperties
public SerializationProperties getSerializationProperties()
Create aSerializationProperties
object holding the serialization properties explicitly declared within this Serializer object (including any character map index), and not including any defaults taken from the stylesheet or query.- Returns:
- a newly-constructed
SerializationProperties
object holding the declared serialization properties. Specifically, it holds the properties defined explicitly on thisSerializer
object, and excludes any properties defined in named or unnamedxsl:output
declarations in the stylesheet, or the equivalent in XQuery.
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getResult
protected javax.xml.transform.Result getResult()
Get the JAXP StreamResult object representing the output destination of this serializer
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close
public void close() throws SaxonApiException
Close any resources associated with this destination. Note that this does not close any user-supplied OutputStream or Writer; those must be closed explicitly by the calling application.- Throws:
SaxonApiException
- if any failure occurs
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getProperty
public static Serializer.Property getProperty(QName name)
Get the Property with a given QName- Parameters:
name
- the QName of the required property, which must be either a standard property defined in the XSLT 3.0 / XQuery 3.0 serialization specification, or an extension property defined by Saxon in the Saxon namespace- Returns:
- the corresponding Property object
- Throws:
java.lang.IllegalArgumentException
- if the name is not a recognized serialization property name.- Since:
- 9.6
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isMustCloseAfterUse
public boolean isMustCloseAfterUse()
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