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  • package root
    Definition Classes
    root
  • package io
    Definition Classes
    root
  • package dylemma
    Definition Classes
    io
  • package spac

    SPaC (short for "Streaming Parser Combinators") is a library for building stream consumers in a declarative style, specialized for tree-like data types like XML and JSON.

    SPaC (short for "Streaming Parser Combinators") is a library for building stream consumers in a declarative style, specialized for tree-like data types like XML and JSON.

    Many utilities for handling XML and JSON data involve parsing the entire "document" to some DOM model, then inspecting and transforming that model to extract information. The downside to these utilities is that when the document is very large, the DOM may not fit in memory. The workaround for this type of problem is to treat the document as a stream of "events", e.g. "StartElement" and "EndElement" for XML, or "StartObject" and "EndObject" for JSON. The downside to this workaround is that writing code to handle these streams can be complicated and error-prone, especially when the DOM is complicated.

    SPaC's goal is to drastically simplify the process of creating code to handle these streams.

    This package contains the "core" SPaC traits; Parser, Transformer, Splitter, and ContextMatcher.

    See the xml and json subpackages (provided by the xml-spac and json-spac libraries respectively) for specific utilities related to handling XML and JSON event streams.

    Definition Classes
    dylemma
  • package xml

    This package provides extensions to the core "spac" library which allow for the handling of XML data.

    This package provides extensions to the core "spac" library which allow for the handling of XML data.

    Rather than creating explicit classes that extend Parser, Transformer, and Splitter, this package provides type aliases and implicit extensions. For example, XmlParser[A] is just a type alias for Parser[XmlEvent, A], and XmlParser is just a call to Parser[XmlEvent].

    Three main Parser methods are added to Parser[XmlEvent] via the XmlParserApplyOps implicit class:

    • XmlParser.forText - for capturing raw text
    • XmlParser.attr - for capturing mandatory attributes from elements
    • XmlParser.attrOpt - for capturing optional attributes from elements

    One main Splitter constructor method is added to Splitter via the XmlSplitterApplyOps implicit class:

    • Splitter.xml - for creating splitters based on an inspection of an "element stack"

    Three main Splitter member methods are added to Splitter[XmlEvent, C] via the XmlSplitterOps implicit class:

    • .attr - alias for .joinBy(XmlParser.attr(...))
    • .attrOpt - alias for .joinBy(XmlParser.attrOpt(...))
    • .text - alias for .joinBy(XmlParser.forText)

    A DSL for creating xml-specific ContextMatchers is provided to make it more convenient to call Splitter.xml. For example:

    Splitter.xml("things" \ "thing").attr("foo").parseToList

    Can be used to capture a list of the "foo" attributes in the <thing> elements in

    <things>
   <thing foo="hello" />
   <thing foo="Goodbye">
      <extra>junk</extra>
   </thing>
</thing>
    Definition Classes
    spac
  • AsQName
  • Fs2DataQName
  • Fs2DataSource
  • JavaxQName
  • JavaxSource
  • XmlEvent
  • XmlParserApplyOps
  • XmlSpacException
  • XmlSplitterApplyOps
  • XmlSplitterOps
o

io.dylemma.spac.xml

JavaxSource

object JavaxSource

Provides helpers for creating Source[XmlEvent] using javax.xml.stream for the underlying event provider.

Source
JavaxSource.scala
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  1. final def !=(arg0: Any): Boolean
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  2. final def ##: Int
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  3. final def ==(arg0: Any): Boolean
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  4. def apply(eventReader: XMLEventReader): Source[XmlEvent]
  5. final def asInstanceOf[T0]: T0
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  6. def clone(): AnyRef
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    protected[lang]
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    @throws(classOf[java.lang.CloneNotSupportedException]) @native()
  7. lazy val defaultFactory: XMLInputFactory

    Default XMLInputFactory used when creating an underlying XMLEventReader with the methods in this object.

    Default XMLInputFactory used when creating an underlying XMLEventReader with the methods in this object.

    This factory disables the IS_REPLACING_ENTITY_REFERENCES and IS_SUPPORTING_EXTERNAL_ENTITIES features, in efforts to mitigate xml injection attacks.

    When using the methods in this object, if you want to override this default factory, define an implicit XMLInputFactory somewhere and make it available in the scope where you call the method, e.g.

    implicit val mySpecificXmlFactory: XMLInputFactory = ???
val xmlEvents = JavaxSource[IO](new File("./stuff.xml"))
  8. final def eq(arg0: AnyRef): Boolean
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  9. def equals(arg0: AnyRef): Boolean
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  10. def finalize(): Unit
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    @throws(classOf[java.lang.Throwable])
  11. def fromFile(file: File, factory: XMLInputFactory = defaultFactory)(implicit codec: Codec = null): Source[XmlEvent]

    Returns a Source[XmlEvent] which can open the given file to read raw XML data.

    Returns a Source[XmlEvent] which can open the given file to read raw XML data.

    The returned Source is reusable. The underlying streams are managed by the open method and the close function it returns.

    file

    A file containing XML

    factory

    Factory instance for the underlying Javax parser

    codec

    Implicit Codec used to interpret the bytes to characters. Default is null

    returns

    A reusable Source[XmlEvent]

  12. def fromInputStream(rawXml: InputStream, factory: XMLInputFactory = defaultFactory)(implicit codec: Codec = null): Source[XmlEvent]

    Returns a single-use Source[XmlEvent] which interprets the contents of the given InputStream as raw XML bytes.

    Returns a single-use Source[XmlEvent] which interprets the contents of the given InputStream as raw XML bytes.

    The returned Source will *not* attempt to close the rawXml stream; responsibility for closing rawXml lies with whoever created it.

    rawXml

    An InputStream containing raw XML bytes

    factory

    Factory instance for the underlying Javax parser

    codec

    Implicit Codec used to interpret the bytes to characters. Default is null

    returns

    A single-use Source[XmlEvent]

  13. def fromReader(rawXml: Reader, factory: XMLInputFactory = defaultFactory): Source[XmlEvent]

    Returns a single-use Source[XmlEvent] which interprets the contents of the given Reader as raw XML characters.

    Returns a single-use Source[XmlEvent] which interprets the contents of the given Reader as raw XML characters.

    The returned Source will *not* attempt to close the rawXml reader; responsibility for closing rawXml lies with whoever created it.

    rawXml

    A Reader containing raw XML character data

    factory

    Factory instance for the underlying Javax parser

    returns

    A single-use Source[XmlEvent]

  14. def fromString(rawXml: String, factory: XMLInputFactory = defaultFactory): Source[XmlEvent]

    Returns a Source[XmlEvent] which interprets the given string as raw XML.

    Returns a Source[XmlEvent] which interprets the given string as raw XML.

    rawXml

    A string of raw XML

    factory

    Factory instance for the underlying Javax parser

    returns

    A reusable Source[XmlEvent]

  15. final def getClass(): Class[_ <: AnyRef]
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    @native()
  16. def hashCode(): Int
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  17. final def isInstanceOf[T0]: Boolean
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  18. final def ne(arg0: AnyRef): Boolean
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  19. final def notify(): Unit
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  20. final def notifyAll(): Unit
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  21. final def synchronized[T0](arg0: => T0): T0
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  22. def toString(): String
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  23. final def wait(): Unit
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  24. final def wait(arg0: Long, arg1: Int): Unit
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  25. final def wait(arg0: Long): Unit
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