Package org.gudy.bouncycastle.asn1
Class ASN1TaggedObject
- java.lang.Object
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- org.gudy.bouncycastle.asn1.ASN1Encodable
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- org.gudy.bouncycastle.asn1.DERObject
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- org.gudy.bouncycastle.asn1.ASN1Object
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- org.gudy.bouncycastle.asn1.ASN1TaggedObject
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- All Implemented Interfaces:
ASN1TaggedObjectParser
,DEREncodable
,DERTags
- Direct Known Subclasses:
DERTaggedObject
public abstract class ASN1TaggedObject extends ASN1Object implements ASN1TaggedObjectParser
ASN.1 TaggedObject - in ASN.1 nottation this is any object proceeded by a [n] where n is some number - these are assume to follow the construction rules (as with sequences).
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Field Summary
Fields Modifier and Type Field Description (package private) boolean
empty
(package private) boolean
explicit
(package private) DEREncodable
obj
(package private) int
tagNo
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Fields inherited from class org.gudy.bouncycastle.asn1.ASN1Encodable
BER, DER
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Fields inherited from interface org.gudy.bouncycastle.asn1.DERTags
APPLICATION, BIT_STRING, BMP_STRING, BOOLEAN, CONSTRUCTED, ENUMERATED, EXTERNAL, GENERAL_STRING, GENERALIZED_TIME, GRAPHIC_STRING, IA5_STRING, INTEGER, NULL, NUMERIC_STRING, OBJECT_IDENTIFIER, OCTET_STRING, PRINTABLE_STRING, SEQUENCE, SEQUENCE_OF, SET, SET_OF, T61_STRING, TAGGED, UNIVERSAL_STRING, UTC_TIME, UTF8_STRING, VIDEOTEX_STRING, VISIBLE_STRING
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Constructor Summary
Constructors Constructor Description ASN1TaggedObject(boolean explicit, int tagNo, DEREncodable obj)
Create a tagged object with the style given by the value of explicit.ASN1TaggedObject(int tagNo, DEREncodable obj)
Create a tagged object in the explicit style.
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Method Summary
All Methods Static Methods Instance Methods Abstract Methods Concrete Methods Modifier and Type Method Description (package private) boolean
asn1Equals(DERObject o)
(package private) abstract void
encode(DEROutputStream out)
static ASN1TaggedObject
getInstance(java.lang.Object obj)
static ASN1TaggedObject
getInstance(ASN1TaggedObject obj, boolean explicit)
DERObject
getObject()
return whatever was following the tag.DEREncodable
getObjectParser(int tag, boolean isExplicit)
Return the object held in this tagged object as a parser assuming it has the type of the passed in tag.int
getTagNo()
int
hashCode()
boolean
isEmpty()
boolean
isExplicit()
return whether or not the object may be explicitly tagged.java.lang.String
toString()
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Methods inherited from class org.gudy.bouncycastle.asn1.ASN1Object
equals, fromByteArray
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Methods inherited from class org.gudy.bouncycastle.asn1.DERObject
toASN1Object
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Methods inherited from class org.gudy.bouncycastle.asn1.ASN1Encodable
getDEREncoded, getDERObject, getEncoded, getEncoded
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Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
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Methods inherited from interface org.gudy.bouncycastle.asn1.DEREncodable
getDERObject
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Field Detail
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tagNo
int tagNo
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empty
boolean empty
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explicit
boolean explicit
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obj
DEREncodable obj
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Constructor Detail
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ASN1TaggedObject
public ASN1TaggedObject(int tagNo, DEREncodable obj)
Create a tagged object in the explicit style.- Parameters:
tagNo
- the tag number for this object.obj
- the tagged object.
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ASN1TaggedObject
public ASN1TaggedObject(boolean explicit, int tagNo, DEREncodable obj)
Create a tagged object with the style given by the value of explicit.If the object implements ASN1Choice the tag style will always be changed to explicit in accordance with the ASN.1 encoding rules.
- Parameters:
explicit
- true if the object is explicitly tagged.tagNo
- the tag number for this object.obj
- the tagged object.
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Method Detail
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getInstance
public static ASN1TaggedObject getInstance(ASN1TaggedObject obj, boolean explicit)
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getInstance
public static ASN1TaggedObject getInstance(java.lang.Object obj)
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asn1Equals
boolean asn1Equals(DERObject o)
- Specified by:
asn1Equals
in classASN1Object
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hashCode
public int hashCode()
- Specified by:
hashCode
in classASN1Object
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getTagNo
public int getTagNo()
- Specified by:
getTagNo
in interfaceASN1TaggedObjectParser
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isExplicit
public boolean isExplicit()
return whether or not the object may be explicitly tagged.Note: if the object has been read from an input stream, the only time you can be sure if isExplicit is returning the true state of affairs is if it returns false. An implicitly tagged object may appear to be explicitly tagged, so you need to understand the context under which the reading was done as well, see getObject below.
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isEmpty
public boolean isEmpty()
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getObject
public DERObject getObject()
return whatever was following the tag.Note: tagged objects are generally context dependent if you're trying to extract a tagged object you should be going via the appropriate getInstance method.
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getObjectParser
public DEREncodable getObjectParser(int tag, boolean isExplicit)
Return the object held in this tagged object as a parser assuming it has the type of the passed in tag. If the object doesn't have a parser associated with it, the base object is returned.- Specified by:
getObjectParser
in interfaceASN1TaggedObjectParser
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encode
abstract void encode(DEROutputStream out) throws java.io.IOException
- Specified by:
encode
in classASN1Object
- Throws:
java.io.IOException
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toString
public java.lang.String toString()
- Overrides:
toString
in classjava.lang.Object
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