schemajic.schema
Class TagList

java.lang.Object
  schemajic.schema.TagList

public class TagList
extends java.lang.Object

Processes and manipulates lists of ASN.1 tags.

Version:

1.00 - 2006/01/21

Author:

support@phillipgriffin.com

Field Summary

static java.lang.String

EMPTY

Constructor Summary

TagList(java.lang.String s)
Parse a list of ASN.1 tags.

TagList(Tag[] tags)
Constructor for TagList with a list of ASN.1 tags parameter.

Method Summary

Tag	getLastTag() Gets a list of ASN.1 tags, possibly empty.
java.util.Iterator	getReverseTags() Optimization.
java.util.Iterator	getTags() Optimization.
boolean	isConstructed() Determines whether an ASN.1 tag is contructed (not primitive).
boolean	isContextSpecific() Determines whether a tag is not primitive, but a context specific tag.
boolean	isEmpty() Determines whether or not a list of ASN.1 tags is empty.
boolean	isPrimitive() Determines whether or not an ASN.1 tag is primitive (not constructed).
boolean	matches(java.io.InputStream in) Match each tag in this list against the data in the input stream and return true if all of the tags were found in the stream.
java.lang.String	toString() Determines whether or not a string has any content.

Methods inherited from class java.lang.Object

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

Field Detail

EMPTY

public static final java.lang.String EMPTY

See Also:

Constant Field Values

Constructor Detail

TagList

public TagList(java.lang.String s)
        throws java.text.ParseException

Parse a list of ASN.1 tags.

Parameters:

s - a string of ASN.1 tags

Throws:

java.text.ParseException

TagList

public TagList(Tag[] tags)

Constructor for TagList with a list of ASN.1 tags parameter.

Parameters:

tags - a list of ASN.1 tags

Method Detail

getTags

public java.util.Iterator getTags()

Optimization. Store tags as a List or write an array iterator.

Returns:

an array of tags and array iterator

getLastTag

public Tag getLastTag()

Gets a list of ASN.1 tags, possibly empty.

Returns:

a list of ASN.1 tags or null

matches

public boolean matches(java.io.InputStream in)
                throws java.io.IOException

Match each tag in this list against the data in the input stream and return true if all of the tags were found in the stream.

Parameters:

in - the input stream of data

Returns:

boolen true or false

Throws:

java.io.IOException

isContextSpecific

public boolean isContextSpecific()

Determines whether a tag is not primitive, but a context specific tag.

Returns:

boolean true or false

isPrimitive

public boolean isPrimitive()

Determines whether or not an ASN.1 tag is primitive (not constructed).

Returns:

boolen true or false

isConstructed

public boolean isConstructed()

Determines whether an ASN.1 tag is contructed (not primitive).

Returns:

boolen true or false

isEmpty

public boolean isEmpty()

Determines whether or not a list of ASN.1 tags is empty.

Returns:

boolen true or false

toString

public java.lang.String toString()

Determines whether or not a string has any content.

Overrides:

toString in class java.lang.Object

Returns:

the current string value if it is not null, otherwise return the "?" character.

getReverseTags

public java.util.Iterator getReverseTags()

Optimization. Maintain ASN.1 tags in reverse order and simply return.

Returns:

a tags iterator