Asn1OpenType Class Reference

Inheritance diagram for Asn1OpenType:

Classes
class	SaxHandler

Public Member Functions
	Asn1OpenType ()
	Asn1OpenType (byte[] data)
	Asn1OpenType (byte[] data, int encoding)
	Asn1OpenType (byte[] data, int offset, int nbytes)
	Asn1OpenType (byte[] data, int offset, int nbytes, int encoding)
	Asn1OpenType (Asn1EncodeBuffer buffer)
	Asn1OpenType (string data, int encoding)
	Asn1OpenType (char[] data, int encoding)
override void	Decode (Asn1BerDecodeBuffer buffer, bool explicitTagging, int implicitLength)
override void	Decode (Asn1PerDecodeBuffer buffer)
override void	Decode (Asn1OerDecodeBuffer buffer)
override int	Encode (Asn1BerEncodeBuffer buffer, bool explicitTagging)
override void	Encode (Asn1PerEncodeBuffer buffer)
override void	Encode (Asn1OerEncodeBuffer buffer)
override void	Encode (Asn1XmlEncoder buffer, String elemName, String nsPrefix)
override void	Encode (Asn1XmlEncoder buffer)
override void	Encode (Asn1XerEncoder buffer, String elemName)
override void	Encode (Asn1XerEncoder buffer)
override void	Encode (Asn1BerOutputStream outs, bool explicitTagging)
override void	Encode (Asn1PerOutputStream outs)
void	EncodeAsExtension (Asn1XmlEncoder buffer)
void	EncodeAsExtension (Asn1XerEncoder buffer)
char []	GetCharData ()
int	GetDataEncoding ()
virtual Asn1XerSaxHandler	GetSaxHandler ()
virtual Asn1XerSaxHandler	GetSaxHandler (bool captureOuterElem)
void	SetBinaryData (byte[] data, int encoding)
void	SetCharData (String data, int encoding)
void	SetCharData (char[] data, int encoding)
override System.String	ToString ()
Public Member Functions inherited from Asn1OctetString
	Asn1OctetString ()
	Asn1OctetString (byte[] data)
	Asn1OctetString (byte[] data, int offset, int nbytes)
	Asn1OctetString (System.String value)
virtual int	CompareTo (System.Object octstr)
virtual void	Decode (Asn1PerDecodeBuffer buffer, long lower, long upper)
override void	Decode (Asn1MderDecodeBuffer buffer)
void	Decode (Asn1MderDecodeBuffer buffer, int constrainedLength)
void	DecodeContent (Asn1OerDecodeBuffer buffer, int numOctets)
virtual void	DecodeXER (System.String buffer, System.String attrs, bool base64)
override void	DecodeXML (System.String buffer, System.String attrs)
virtual void	Encode (Asn1PerEncodeBuffer buffer, long lower, long upper)
override void	Encode (Asn1MderOutputStream outs)
void	Encode (Asn1MderOutputStream outs, int constrainedLength)
override void	Encode (Asn1XerEncoder buffer, System.String elemName)
override void	Encode (Asn1XmlEncoder buffer, System.String elemName, System.String nsPrefix)
virtual void	Encode (Asn1XmlEncoder buffer, System.String elemName, System.String nsPrefix, bool base64)
virtual void	Encode (Asn1PerOutputStream outs, long lower, long upper)
override void	EncodeAttribute (Asn1XmlEncoder buffer, System.String attrName)
void	EncodeContent (Asn1OerEncodeBuffer buffer)
bool	Equals (byte[] value)
bool	Equals (String s)
override bool	Equals (System.Object value)
override int	GetHashCode ()
int	GetMderLength ()
virtual System.IO.Stream	toInputStream ()
override System.String	ToString ()
Public Member Functions inherited from Asn1Type
void	_SetKey (byte[] rtkey)
virtual void	Decode (Asn1BerDecodeBuffer buffer)
virtual void	Decode (System.Object reader, System.String xmlURI)
virtual void	Decode (System.Object reader, System.IO.Stream byteStream)
virtual void	DecodeXML (String buffer, String attrs)
virtual int	Encode (Asn1BerEncodeBuffer buffer)
virtual void	Encode (Asn1XmlEncodeBuffer buffer)
virtual void	Encode (Asn1MderOutputStream buffer, bool useCachedLength)
virtual void	Encode (Asn1CerOutputStream outs, bool explicitTagging)
void	EncodeAsOpenType (Asn1OerEncodeBuffer buffer)
virtual bool	Equals (Asn1Type obj)
String	GetNonParameterizedTypeName ()
virtual void	Indent (System.IO.TextWriter outs, int level)
virtual bool	IsOpenType ()
virtual bool	MatchTypeName (System.String typeName)
virtual void	Pdiag (System.String s)
virtual void	Print (System.IO.TextWriter outs, System.String varName, int level)
virtual void	Print (System.String varName)
void	SetNonParameterizedTypeName (String value)
virtual void	SetOpenType ()

Protected Attributes
int	dataEncoding

Additional Inherited Members
Static Public Member Functions inherited from Asn1OctetString
static System.String	EncodeBase64Binary (byte[] data)
static void	Skip (Asn1PerDecodeBuffer buffer)
static void	Skip (Asn1PerDecodeBuffer buffer, long lower, long upper)
Static Public Member Functions inherited from Asn1Type
static void	_SetKey2 (byte[] rtkey)
static void	_SetLicLocation (String path)
static Asn1Type	Decode (Asn1BerDecodeBuffer buffer, Asn1OpenTypeField openTypeField, bool explicitTag, int implicitLength)
static Asn1Type	Decode (Asn1OerDecodeBuffer buffer, Asn1OpenTypeField openTypeField)
static Asn1Type	Decode (Asn1PerDecodeBuffer buffer, Asn1OpenTypeField openTypeField)
static System.String	GetTypeName (short typeCode)
Public Attributes inherited from Asn1OctetString
byte []	mValue
Public Attributes inherited from Asn1Type
const short	BIT_STRING = 3
const short	BMPString = 30
const short	BOOLEAN = 1
const short	DATE = 31
const short	ENUMERATED = 10
const short	EOC = 0
const short	EXTERNAL = 8
const short	GeneralString = 27
const short	GeneralTime = 24
const short	GraphicString = 25
const short	IA5String = 22
const short	INTEGER = 2
const short	NULL = 5
const short	NumericString = 18
const short	OBJECT_IDENTIFIER = 6
const short	ObjectDescriptor = 7
const short	OCTET_STRING = 4
const short	OpenType = 99
const short	PrintableString = 19
const short	REAL = 9
const short	RELATIVE_OID_IRI = 36
const short	RelativeOID = 13
const short	SEQUENCE = 16
const short	SET = 17
const short	T61String = TeletexString
const short	TeletexString = 20
const short	TIME = 14
const short	UniversalString = 28
const short	UTCTime = 23
const short	UTF8String = 12
const short	VideotexString = 21
const short	VisibleString = 26
Static Public Attributes inherited from Asn1OctetString
static new readonly Asn1Tag	_TAG
Static Public Attributes inherited from Asn1Type
static readonly Asn1Tag	_TAG
Properties inherited from Asn1OctetString
override int	Length [get]
Properties inherited from Asn1Type
virtual String	AsnTypeName [get]
virtual int	Length [get]

Detailed Description

This is a container class for holding an ASN.1 open type value.

Where the data is internally stored and how it is interpreted is controlled by a "dataEncoding" field. You can specify the data encoding when creating the object. It will also be set when decoding. The following explains the possible data encodings:

• UNKNOWN: "mValue" is used to hold byte data. It is interpreted as the encoding of the actual value according to some unknown encoding rules (BER, PER, OER, XER, JSON, or some other).
• BER, PER, OER: "mValue" is used to hold byte data. It is interpreted as the encoding of the actual value according to BER, PER, or OER, respectively.
• XER: "mValue" is used to hold byte data. It is interpreted as the the encoding of the actual value in XML (whether X.693 or Obj-Sys rules), where the XML characters are encoded to bytes using the UTF-8 character encoding.
• JSON: a private field is used to hold character data. The character data is the encoding of the actual value in JSON.

Note especially that the data encoding indicates the encoding rules used to encode the actual value. That result is typically encoded as part of some larger encoding. The data encoding does NOT indicate the rules used for that larger encoding. For example, using an xmlhstring representation, XER and JSON will encode an open type that was previously encoded using any arbitrary encoding rules. When decoding such data, the data encoding will be UNKNOWN, not XER nor JSON.

Constructor & Destructor Documentation

Asn1OpenType() [1/8]

Asn1OpenType

(

)

This constructor creates an empty type that can be used in a Decode method call to receive an encoded value. The data encoding is UNKNOWN.

Asn1OpenType() [2/8]

Asn1OpenType

(

byte []

data

)

This constructor initializes an open type from the given byte array. The array is assumed to contain a previously encoded message component. The data encoding is UNKNOWN.

Parameters

data	Byte array containing a previously encoded message component.

Asn1OpenType() [3/8]

Asn1OpenType	(	byte []	data,
		int	encoding
	)

This constructor initializes an open type from the given byte array. The array is assumed to contain a previously encoded message component.

Parameters

data	Byte array containing a previously encoded value.
encoding	The encoding that describes the meaning of data. Any of the encodings other than JSON.

Asn1OpenType() [4/8]

Asn1OpenType	(	byte []	data,
		int	offset,
		int	nbytes
	)

This constructor initializes the open type from a portion of the given byte array. A new byte array is created starting at the given offset and consisting of the given number of bytes. The encoding is UNKNOWN.

Parameters

data	Byte array containing a previously encoded value.
offset	The offset in array at which to begin copy.
nbytes	Number of bytes to copy from target array

Asn1OpenType() [5/8]

Asn1OpenType	(	byte []	data,
		int	offset,
		int	nbytes,
		int	encoding
	)

This constructor initializes the open type from a portion of the given byte array. A new byte array is created starting at the given offset and consisting of the given number of bytes. /p>

Parameters

data	Byte array containing a previously encoded value.
encoding	Starting offset in data from which to copy bytes
nbytes	Number of bytes to copy from target array
offset	The encoding that describes the meaning of data. Any of the encodings other than JSON.

Asn1OpenType() [6/8]

Asn1OpenType

(

Asn1EncodeBuffer

buffer

)

This constructor initializes an open type using an encoded component. This can be used if a header (for example, a ROSE header) is being prepended to a pre-encoded component. The data encoding is derived from the type of Asn1EncodeBuffer given, and is possibly UNKNOWN.

Parameters

buffer

Reference to encode buffer into which component type was encoded.

References Asn1EncodeBuffer.MsgCopy, and Asn1EncodeBuffer.MsgLength.

Asn1OpenType() [7/8]

Asn1OpenType	(	string	data,
		int	encoding
	)

Convenience constructor. Same as Asn1OpenType(data.ToCharArray(), encoding)

Asn1OpenType() [8/8]

Asn1OpenType	(	char []	data,
		int	encoding
	)

Create Asn1OpenType on the given character data. /p>

Parameters

data	The character data array.
encoding	The encoding. Either XER or JSON. If JSON, data is taken to be the JSON encoding of the actual value. The array is not copied, so beware using it after passing it here. The "mValue" field will be assigned null. If XER, data is taken to be the XER encoding of the actual value. The "mValue" field will be assigned the UTF-8 character encoding of the given characters.

Member Function Documentation

Decode() [1/3]

override void Decode ( Asn1BerDecodeBuffer  buffer, bool  explicitTagging, int  implicitLength  )

virtual

This method decodes an ASN.1 open type value. The data encoding will be set to BER.

Parameters

buffer	Decode message buffer object
explicitTagging	Flag indicating element is explicitly tagged
implicitLength	Length of contents if implicit

Reimplemented from Asn1OctetString.

Referenced by Asn1OpenExt.DecodeComponent(), Asn1OpenExt.DecodeOpenType(), Asn1OpenExt.SetOpenType(), and Asn1OpenExt.ShrinkArray().

Decode() [2/3]

override void Decode ( Asn1PerDecodeBuffer  buffer )

virtual

This method decodes an ASN.1 open type value using the packed encoding rules (PER). The data encoding will be set to PER.

Parameters

buffer

Decode message buffer object

Reimplemented from Asn1OctetString.

Decode() [3/3]

override void Decode ( Asn1OerDecodeBuffer  buffer )

virtual

This method decodes an ASN.1 open type value using the Octet Encoding Rules (OER). This object will subsequently contain the encoding of the open type (which should be OER).

Reimplemented from Asn1OctetString.

Encode() [1/9]

override int Encode ( Asn1BerEncodeBuffer  buffer, bool  explicitTagging  )

virtual

This method encodes an ASN.1 open type value. The value is assumed to be an already-encoded BER message component and will be copied to the encoded buffer. An optimization is available in which no copy will performed if the encoded component is already present in the encode buffer. This is done if the form of constructor specifiying only a component length is used.

Parameters

buffer	Encode message buffer object
explicitTagging	Flag indicating element is explicitly tagged

Returns

Length of encoded component

Reimplemented from Asn1OctetString.

Referenced by Asn1OpenExt.Encode(), and Asn1OpenExt.ToString().

Encode() [2/9]

override void Encode ( Asn1PerEncodeBuffer  buffer )

virtual

This method encodes an ASN.1 open type value using the Packed Encoding Rules (PER). The data should be the value pre-encoded encoded in PER.

Parameters

buffer

Encode message buffer object

Reimplemented from Asn1OctetString.

References Asn1PerEncodeBuffer.EncodeOpenType().

Encode() [3/9]

override void Encode ( Asn1OerEncodeBuffer  buffer )

virtual

This method encodes an ASN.1 open type value using the Octet Encoding Rules (OER). The data should be the value pre-encoded in OER.

Parameters

buffer

Encode message buffer object

Reimplemented from Asn1OctetString.

References Asn1XmlXerEncoder.Copy(), Asn1EncodeBuffer.Copy(), Asn1OerEncodeBuffer.EncodeLength(), Asn1XmlXerEncoder.Indent(), and Asn1Util.ToHexString().

Encode() [4/9]

override void Encode	(	Asn1XmlEncoder	buffer,
		String	elemName,
		String	nsPrefix
	)

This method encodes an ASN.1 open type value using the XML Encoding as specified in the XML schema standard(asn2xsd). If the data encoding is XER, the data is written as-is. Otherwise, the data's hexadecimal representation is encoded (i.e. xmlhstring).

Parameters

buffer	Encode message buffer object
elemName	Ignored
nsPrefix	Ignored

References Asn1XmlEncoder.EncodeEndElement(), and Asn1XmlEncoder.EncodeStartElement().

Encode() [5/9]

override void Encode ( Asn1XmlEncoder  buffer )

virtual

This method encodes an ASN.1 open type value using the XML Encoding as specified in the XML schema standard(asn2xsd).

If the data encoding is XER, the data is written as-is. Otherwise, the data's hexadecimal representation is encoded (i.e. xmlhstring).

Parameters

buffer

Encode message buffer object

Reimplemented from Asn1Type.

References Asn1XmlXerEncoder.Copy(), and Asn1XmlXerEncoder.EncodeHexStrValue().

Encode() [6/9]

override void Encode	(	Asn1XerEncoder	buffer,
		String	elemName
	)

This method encodes an ASN.1 open type value using the XML Encoding as specified in the XML schema standard(asn2xsd).

If the data encoding is XER, the data is written as-is. Otherwise, the data's hexadecimal representation is encoded (i.e. xmlhstring).

Parameters

buffer	Encode message buffer object
elemName	Ignored

References Asn1XerEncoder.EncodeEndElement(), and Asn1XerEncoder.EncodeStartElement().

Encode() [7/9]

override void Encode ( Asn1XerEncoder  buffer )

virtual

This method encodes an ASN.1 open type value using the XML Encoding Rules (XER).

If the data encoding is XER, the data is written as-is. Otherwise, the data's hexadecimal representation is encoded (i.e. xmlhstring).

Parameters

buffer

Encode message buffer object

Reimplemented from Asn1Type.

References Asn1XmlXerEncoder.Copy(), Asn1XmlXerEncoder.EncodeHexStrValue(), Asn1XmlXerEncoder.Indent(), Asn1XerEncoder.State, and Asn1XerEncoder_Fields.XEREND.

Encode() [8/9]

override void Encode ( Asn1BerOutputStream  outs, bool  explicitTagging  )

virtual

This method encodes and writes to the stream an ASN.1 open type value including the UNIVERSAL tag value and length if explicit tagging is specified. This overloaded version uses the Basic Encoding Rules (BER). The data should be the value pre-encoded in BER.

Throws, Exception thrown by C# System.IO.Stream for I/O error

Parameters

outs	BER Output Stream object
explicitTagging	Flag indicating explicit tagging should be done

Exceptions

Asn1Exception

Thrown, if operation is failed.

Reimplemented from Asn1OctetString.

Encode() [9/9]

override void Encode ( Asn1PerOutputStream  outs )

virtual

This method encodes an ASN.1 open type value using the Packed Encoding Rules (PER). The data should be the value pre-encoded in PER.

Also throws any exception thrown by the underlying Asn1PerOutputStream.

Parameters

outs	PER Output Stream object

Exceptions

Asn1Exception

Thrown, if operation is failed.

Reimplemented from Asn1OctetString.

EncodeAsExtension() [1/2]

void EncodeAsExtension

(

Asn1XmlEncoder

buffer

)

This method encodes an extension element to XML. If the data encoding is other than XER, the hexadecimal representation of the data is encoded inside an XML comment.

Parameters

buffer

Encode message buffer object

References Asn1XmlXerEncoder.Indent().

Referenced by Asn1OpenExt.ShrinkArray().

EncodeAsExtension() [2/2]

void EncodeAsExtension

(

Asn1XerEncoder

buffer

)

This method encodes an extension element to XML. If the data encoding is other than XER, its hexadecimal representation is encoded inside an XML comment.

Parameters

buffer

References Asn1XmlXerEncoder.Indent(), Asn1XerEncoder.State, and Asn1XerEncoder_Fields.XEREND.

GetCharData()

char [] GetCharData

(

)

Returns the character data for the open type. Currently, this is only supported when getDataEncoding() returns JSON.

Returns

The char data. The actual internal array is returned; a copy is not made.

Exceptions

RuntimeException

if data encoding indicates there is no char data

GetDataEncoding()

int GetDataEncoding

(

)

Return the data encoding of the data.

References Asn1BerDecodeBuffer.DecodeOpenType(), Asn1Type.OpenType, and Asn1MessageBufferBase.TypeCode.

GetSaxHandler() [1/2]

virtual Asn1XerSaxHandler GetSaxHandler ( )

virtual

This method returns the Asn1XerOpenType.SaxHandler class instance used for ASN.1 XER encoding. If this is the first invocation of any of the GetSaxHandler methods on this object, the returned handler will capture the outer element start/end tags. Otherwise, this will simply return the same SAX handler as previously returned.

Returns

Asn1XerOpenType.SaxHandler object

GetSaxHandler() [2/2]

virtual Asn1XerSaxHandler GetSaxHandler ( bool  captureOuterElem )

virtual

This method returns the Asn1XerOpenType.SaxHandler class instance used for ASN.1 XER encoding.

Parameters

captureOuterElem

Pass true if the outer element start and end tags (if present) should be captured. The outer element is the element for which startElement is called when the level is the start level. Note that this parameter is ignored if you have previously invoked one of the getSaxHandler methods on this object.

Returns

Asn1XerOpenType.SaxHandler object

SetBinaryData()

void SetBinaryData	(	byte []	data,
		int	encoding
	)

Sets the binary data for the open type and assigns the data encoding to the given encoding.

Parameters

data	The binary data that make up an encoding of the actual value.
encoding	Identifies the encoding rules for which data is an encoding. This can be any of the encodings except JSON.

SetCharData() [1/2]

void SetCharData	(	String	data,
		int	encoding
	)

Convenience method; same as SetCharData(mValue.toCharArray(), encoding)

SetCharData() [2/2]

void SetCharData	(	char []	data,
		int	encoding
	)

Sets the character data for the open type and assigns the data encoding to the given encoding.

Parameters

data	The character data that make up an encoding of the actual value.
encoding	Permissible values are JSON and XER. If XER, the given data will be converted to bytes using UTF-8 and held in the "mValue" field. If JSON, the given data will be held as-is. The array will not be copied. The "mValue" field will be assigned null.

ToString()

override System.String ToString

(

)

This method will return a string representation of the open type value. If the data encoding is XER or JSON, the string will consist of the corresponding characters (in the case of XER, the byte data is converted to characters using UTF-8). In all other cases, the hexadecimal representation of the byte data is returned.

Returns

Stringified representation of the value

References Asn1PerOutputStream.EncodeOpenType(), and Asn1OutputStream.Write().

Referenced by Asn1OpenExt.SetOpenType(), and Asn1OpenExt.ToString().

Member Data Documentation

dataEncoding

int dataEncoding

protected

Specifies the nature of the data held by this object. /p>

Referenced by Asn1OpenType.SaxHandler.EndElement().