org.mozilla.jss.asn1

Class CHOICE.Template

java.lang.Object

org.mozilla.jss.asn1.CHOICE.Template

All Implemented Interfaces:

ASN1Template

Enclosing class:

CHOICE

public static class CHOICE.Template
extends java.lang.Object
implements ASN1Template

A Template for decoding ASN.1 CHOICEs

Constructor Summary

Constructors

Constructor and Description
Template() Creates an empty CHOICE template

Method Summary

Modifier and Type	Method and Description
void	addElement(ASN1Template template) Adds a new sub-template to this CHOICE template with no implicit tag.
void	addElement(Tag implicitTag, ASN1Template template) Adds a new sub-template to this CHOICE template with an implicit tag.
ASN1Value	decode(java.io.InputStream istream) Decodes an ASN1Value from the InputStream without an implicit tag.
ASN1Value	decode(Tag implicitTag, java.io.InputStream istream) Decodes a CHOICE.
ASN1Template	elementAt(int index)
Tag	implicitTagAt(int index) Retrieves the implicit tag of the element at the specified index.
void	removeAllElements() Empties this CHOICE template.
void	removeElementAt(int index) Removes the element at the specified index.
int	size()
boolean	tagMatch(Tag t) Determines whether the given tag will satisfy this template.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Template

public Template()

Creates an empty CHOICE template

Method Detail

addElement

public void addElement(ASN1Template template)

Adds a new sub-template to this CHOICE template with no implicit tag.

Parameters:

template - Sub-template.

addElement

public void addElement(Tag implicitTag,
                       ASN1Template template)

Adds a new sub-template to this CHOICE template with an implicit tag.

Parameters:

implicitTag - Implicit tag.

template - Sub-template.

size

public int size()

Returns:

The number of elements in this CHOICE template.

elementAt

public ASN1Template elementAt(int index)

Parameters:

index - Element index.

Returns:

The element at the specified index.

implicitTagAt

public Tag implicitTagAt(int index)

Retrieves the implicit tag of the element at the specified index. Returns null if there is no implicit tag for this element.

Parameters:

index - Element index.

Returns:

The implicit tag.

removeAllElements

public void removeAllElements()

Empties this CHOICE template.

removeElementAt

public void removeElementAt(int index)

Removes the element at the specified index.

Parameters:

index - Element index.

tagMatch

public boolean tagMatch(Tag t)

Determines whether the given tag will satisfy this template.

Specified by:

tagMatch in interface ASN1Template

Parameters:

t - The tag.

Returns:

True if the tag satisfies any sub-template.

decode

public ASN1Value decode(java.io.InputStream istream)
                 throws java.io.IOException,
                        InvalidBERException

Description copied from interface: ASN1Template

Decodes an ASN1Value from the InputStream without an implicit tag.

Specified by:

decode in interface ASN1Template

Parameters:

istream - Must support marking (markSupported() == true). For example, ByteArrayInputStream and BufferedInputStream support marking, but FileInputStream does not. If your source does not support marking, you can wrap it in a BufferedInputStream.

Returns:

ASN.1 value.

Throws:

java.io.IOException - If other error occurred.

InvalidBERException - If there is an invalid BER encoding.

decode

public ASN1Value decode(Tag implicitTag,
                        java.io.InputStream istream)
                 throws java.io.IOException,
                        InvalidBERException

Decodes a CHOICE.

Specified by:

decode in interface ASN1Template

Parameters:

implicitTag - This parameter is ignored. A choice cannot have an implicit tag.

istream - Must support marking (markSupported() == true). For example, ByteArrayInputStream and BufferedInputStream support marking, but FileInputStream does not. If your source does not support marking, you can wrap it in a BufferedInputStream.

Returns:

ASN.1 value.

Throws:

java.io.IOException - If other error occurred.

InvalidBERException - If there is an invalid BER encoding.