Package org.codehaus.plexus.util.xml.pull

Class MXSerializer

java.lang.Object
org.codehaus.plexus.util.xml.pull.MXSerializer
All Implemented Interfaces:
XmlSerializer
public class MXSerializer extends Object implements XmlSerializer
Implementation of XmlSerializer interface from XmlPull V1 API. This implementation is optimized for performance and low memory footprint.

Implemented features:

  • FEATURE_NAMES_INTERNED - when enabled all returned names (namespaces, prefixes) will be interned and it is required that all names passed as arguments MUST be interned
  • FEATURE_SERIALIZER_ATTVALUE_USE_APOSTROPHE

Implemented properties:

  • PROPERTY_SERIALIZER_INDENTATION
  • PROPERTY_SERIALIZER_LINE_SEPARATOR

C0n control characters except \n, \r, and \t are omitted from output

  • Field Details

    • XML_URI

      protected static final String XML_URI
      See Also:

    • XMLNS_URI

      protected static final String XMLNS_URI
      See Also:

    • FEATURE_SERIALIZER_ATTVALUE_USE_APOSTROPHE

      protected final String FEATURE_SERIALIZER_ATTVALUE_USE_APOSTROPHE
      See Also:

    • FEATURE_NAMES_INTERNED

      protected final String FEATURE_NAMES_INTERNED
      See Also:

    • PROPERTY_SERIALIZER_INDENTATION

      protected final String PROPERTY_SERIALIZER_INDENTATION
      See Also:

    • PROPERTY_SERIALIZER_LINE_SEPARATOR

      protected final String PROPERTY_SERIALIZER_LINE_SEPARATOR
      See Also:

    • PROPERTY_LOCATION

      protected static final String PROPERTY_LOCATION
      See Also:

    • namesInterned

      protected boolean namesInterned

    • attributeUseApostrophe

      protected boolean attributeUseApostrophe

    • indentationString

      protected String indentationString

    • lineSeparator

      protected String lineSeparator

    • location

      protected String location

    • out

      protected Writer out

    • autoDeclaredPrefixes

      protected int autoDeclaredPrefixes

    • depth

      protected int depth

    • elNamespace

      protected String[] elNamespace

    • elName

      protected String[] elName

    • elNamespaceCount

      protected int[] elNamespaceCount

    • namespaceEnd

      protected int namespaceEnd

    • namespacePrefix

      protected String[] namespacePrefix

    • namespaceUri

      protected String[] namespaceUri

    • finished

      protected boolean finished

    • pastRoot

      protected boolean pastRoot

    • setPrefixCalled

      protected boolean setPrefixCalled

    • startTagIncomplete

      protected boolean startTagIncomplete

    • doIndent

      protected boolean doIndent

    • seenTag

      protected boolean seenTag

    • seenBracket

      protected boolean seenBracket

    • seenBracketBracket

      protected boolean seenBracketBracket

    • buf

      protected char[] buf

    • precomputedPrefixes

      protected static final String[] precomputedPrefixes

    • offsetNewLine

      protected int offsetNewLine

    • indentationJump

      protected int indentationJump

    • indentationBuf

      protected char[] indentationBuf

    • maxIndentLevel

      protected int maxIndentLevel

    • writeLineSeparator

      protected boolean writeLineSeparator

    • writeIndentation

      protected boolean writeIndentation

  • Constructor Details

    • MXSerializer

      public MXSerializer()

  • Method Details

    • reset

      protected void reset()

    • ensureElementsCapacity

      protected void ensureElementsCapacity()

    • ensureNamespacesCapacity

      protected void ensureNamespacesCapacity()

    • setFeature

      public void setFeature(String name, boolean state) throws IllegalArgumentException, IllegalStateException
      Description copied from interface: XmlSerializer
      Set feature identified by name (recommended to be URI for uniqueness). Some well known optional features are defined in http://www.xmlpull.org/v1/doc/features.html. If feature is not recognized or can not be set then IllegalStateException MUST be thrown.
      Specified by:
      setFeature in interface XmlSerializer
      Parameters:
      name - feature name
      state - feature state
      Throws:
      IllegalStateException - If the feature is not supported or can not be set
      IllegalArgumentException

    • getFeature

      public boolean getFeature(String name) throws IllegalArgumentException
      Description copied from interface: XmlSerializer
      Return the current value of the feature with given name.

      NOTE: unknown properties are always returned as null

      Specified by:
      getFeature in interface XmlSerializer
      Parameters:
      name - The name of feature to be retrieved.
      Returns:
      The value of named feature.
      Throws:
      IllegalArgumentException - if feature string is null

    • rebuildIndentationBuf

      protected void rebuildIndentationBuf()
      For maximum efficiency when writing indents the required output is pre-computed This is internal function that recomputes buffer after user requested changes.

    • writeIndent

      protected void writeIndent() throws IOException
      Throws:
      IOException

    • setProperty

      public void setProperty(String name, Object value) throws IllegalArgumentException, IllegalStateException
      Description copied from interface: XmlSerializer
      Set the value of a property. (the property name is recommended to be URI for uniqueness). Some well known optional properties are defined in http://www.xmlpull.org/v1/doc/properties.html. If property is not recognized or can not be set then IllegalStateException MUST be thrown.
      Specified by:
      setProperty in interface XmlSerializer
      Parameters:
      name - property name
      value - property value
      Throws:
      IllegalStateException - if the property is not supported or can not be set
      IllegalArgumentException

    • getProperty

      public Object getProperty(String name) throws IllegalArgumentException
      Description copied from interface: XmlSerializer
      Look up the value of a property. The property name is any fully-qualified URI. I

      NOTE: unknown properties are always returned as null

      Specified by:
      getProperty in interface XmlSerializer
      Parameters:
      name - The name of property to be retrieved.
      Returns:
      The value of named property.
      Throws:
      IllegalArgumentException

    • getWriter

      public Writer getWriter()

    • setOutput

      public void setOutput(Writer writer)
      Specified by:
      setOutput in interface XmlSerializer
      Parameters:
      writer - Set the output to the given writer.

      WARNING no information about encoding is available!

    • setOutput

      public void setOutput(OutputStream os, String encoding) throws IOException
      Description copied from interface: XmlSerializer
      Set to use binary output stream with given encoding.
      Specified by:
      setOutput in interface XmlSerializer
      Parameters:
      os - out
      encoding - encoding
      Throws:
      IOException - io

    • startDocument

      public void startDocument(String encoding, Boolean standalone) throws IOException
      Description copied from interface: XmlSerializer
      Write <?xml declaration with encoding (if encoding not null) and standalone flag (if standalone not null) This method can only be called just after setOutput.
      Specified by:
      startDocument in interface XmlSerializer
      Parameters:
      encoding - document encoding
      standalone - standalone flag value
      Throws:
      IOException - io

    • endDocument

      public void endDocument() throws IOException
      Description copied from interface: XmlSerializer
      Finish writing. All unclosed start tags will be closed and output will be flushed. After calling this method no more output can be serialized until next call to setOutput()
      Specified by:
      endDocument in interface XmlSerializer
      Throws:
      IOException - io

    • setPrefix

      public void setPrefix(String prefix, String namespace) throws IOException
      Description copied from interface: XmlSerializer
      Binds the given prefix to the given namespace. This call is valid for the next element including child elements. The prefix and namespace MUST be always declared even if prefix is not used in element (startTag() or attribute()) - for XML 1.0 it must result in declaring xmlns:prefix='namespace' (or xmlns:prefix="namespace" depending what character is used to quote attribute value).

      NOTE: this method MUST be called directly before startTag() and if anything but startTag() or setPrefix() is called next there will be exception.

      NOTE: prefixes "xml" and "xmlns" are already bound and can not be redefined see: Namespaces in XML Errata.

      NOTE: to set default namespace use as prefix empty string.

      Specified by:
      setPrefix in interface XmlSerializer
      Parameters:
      prefix - must be not null (or IllegalArgumentException is thrown)
      namespace - must be not null
      Throws:
      IOException - io

    • lookupOrDeclarePrefix

      protected String lookupOrDeclarePrefix(String namespace)

    • getPrefix

      public String getPrefix(String namespace, boolean generatePrefix)
      Specified by:
      getPrefix in interface XmlSerializer
      Parameters:
      namespace - the namespace
      generatePrefix - to generate the missing prefix
      Returns:
      namespace that corresponds to given prefix If there is no prefix bound to this namespace return null but if generatePrefix is false then return generated prefix.

      NOTE: if the prefix is empty string "" and default namespace is bound to this prefix then empty string ("") is returned.

      NOTE: prefixes "xml" and "xmlns" are already bound will have values as defined Namespaces in XML specification

    • getDepth

      public int getDepth()
      Specified by:
      getDepth in interface XmlSerializer
      Returns:
      the current depth of the element. Outside the root element, the depth is 0. The depth is incremented by 1 when startTag() is called. The depth is decremented after the call to endTag() event was observed. 
       <!-- outside -->     0
 <root>               1
   sometext                 1
     <foobar>         2
     </foobar>        2
 </root>              1
 <!-- outside -->     0

    • getNamespace

      public String getNamespace()
      Description copied from interface: XmlSerializer
      Returns the namespace URI of the current element as set by startTag().

      NOTE: that means in particular that:

      • if there was startTag("", ...) then getNamespace() returns ""
      • if there was startTag(null, ...) then getNamespace() returns null
      Specified by:
      getNamespace in interface XmlSerializer
      Returns:
      namespace set by startTag() that is currently in scope

    • getName

      public String getName()
      Description copied from interface: XmlSerializer
      Returns the name of the current element as set by startTag(). It can only be null before first call to startTag() or when last endTag() is called to close first startTag().
      Specified by:
      getName in interface XmlSerializer
      Returns:
      namespace set by startTag() that is currently in scope

    • startTag

      public XmlSerializer startTag(String namespace, String name) throws IOException
      Description copied from interface: XmlSerializer
      Writes a start tag with the given namespace and name. If there is no prefix defined for the given namespace, a prefix will be defined automatically. The explicit prefixes for namespaces can be established by calling setPrefix() immediately before this method. If namespace is null no namespace prefix is printed but just name. If namespace is empty string then serializer will make sure that default empty namespace is declared (in XML 1.0 xmlns='') or throw IllegalStateException if default namespace is already bound to non-empty string.
      Specified by:
      startTag in interface XmlSerializer
      Parameters:
      namespace - ns
      name - tag name
      Returns:
      XmlSerializer
      Throws:
      IOException - io

    • attribute

      public XmlSerializer attribute(String namespace, String name, String value) throws IOException
      Description copied from interface: XmlSerializer
      Write an attribute. Calls to attribute() MUST follow a call to startTag() immediately. If there is no prefix defined for the given namespace, a prefix will be defined automatically. If namespace is null or empty string no namespace prefix is printed but just name.
      Specified by:
      attribute in interface XmlSerializer
      Parameters:
      namespace - namespace to use
      name - attribute name
      value - attribute value
      Returns:
      XmlSerializer
      Throws:
      IOException - io

    • closeStartTag

      protected void closeStartTag() throws IOException
      Throws:
      IOException

    • endTag

      public XmlSerializer endTag(String namespace, String name) throws IOException
      Description copied from interface: XmlSerializer
      Write end tag. Repetition of namespace and name is just for avoiding errors. Background: in kXML endTag had no arguments, and non matching tags were very difficult to find... If namespace is null no namespace prefix is printed but just name. If namespace is empty string then serializer will make sure that default empty namespace is declared (in XML 1.0 xmlns='').
      Specified by:
      endTag in interface XmlSerializer
      Parameters:
      namespace - ns
      name - tag name
      Returns:
      XmlSerializer
      Throws:
      IOException - io

    • text

      public XmlSerializer text(String text) throws IOException
      Specified by:
      text in interface XmlSerializer
      Parameters:
      text - Writes text, where special XML chars are escaped automatically
      Returns:
      XmlSerializer
      Throws:
      IOException - io

    • text

      public XmlSerializer text(char[] buf, int start, int len) throws IOException
      Description copied from interface: XmlSerializer
      Writes text, where special XML chars are escaped automatically
      Specified by:
      text in interface XmlSerializer
      Parameters:
      buf - characters
      start - start
      len - lenght
      Returns:
      XmlSerializer
      Throws:
      IOException - io

    • cdsect

      public void cdsect(String text) throws IOException
      Specified by:
      cdsect in interface XmlSerializer
      Throws:
      IOException

    • entityRef

      public void entityRef(String text) throws IOException
      Specified by:
      entityRef in interface XmlSerializer
      Throws:
      IOException

    • processingInstruction

      public void processingInstruction(String text) throws IOException
      Specified by:
      processingInstruction in interface XmlSerializer
      Throws:
      IOException

    • comment

      public void comment(String text) throws IOException
      Specified by:
      comment in interface XmlSerializer
      Throws:
      IOException

    • docdecl

      public void docdecl(String text) throws IOException
      Specified by:
      docdecl in interface XmlSerializer
      Throws:
      IOException

    • ignorableWhitespace

      public void ignorableWhitespace(String text) throws IOException
      Specified by:
      ignorableWhitespace in interface XmlSerializer
      Throws:
      IOException

    • flush

      public void flush() throws IOException
      Description copied from interface: XmlSerializer
      Write all pending output to the stream. If method startTag() or attribute() was called then start tag is closed (final >) before flush() is called on underlying output stream.

      NOTE: if there is need to close start tag (so no more attribute() calls are allowed) but without flushing output call method text() with empty string (text("")).

      Specified by:
      flush in interface XmlSerializer
      Throws:
      IOException - io

    • writeAttributeValue

      protected void writeAttributeValue(String value, Writer out) throws IOException
      Throws:
      IOException

    • writeElementContent

      protected void writeElementContent(String text, Writer out) throws IOException
      Throws:
      IOException

    • writeElementContent

      protected void writeElementContent(char[] buf, int off, int len, Writer out) throws IOException
      Throws:
      IOException

    • printable

      protected static final String printable(String s)

    • printable

      protected static final String printable(char ch)