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java.lang.Objectorg.mozilla.jss.asn1.BIT_STRING
public class BIT_STRING
An ASN.1 BIT STRING
, which is an ordered sequence of bits.
The bits are stored the same way they are encoded in BER: as an array
of bytes with 0-7 unused bits at the end.
Nested Class Summary | |
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static class |
BIT_STRING.Template
A class for decoding a BIT_STRING from its BER encoding. |
Field Summary | |
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static Form |
FORM
|
static Tag |
TAG
|
Constructor Summary | |
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BIT_STRING(java.util.BitSet bs,
int numBits)
Constructs a BIT_STRING from a BitSet. |
|
BIT_STRING(byte[] bits,
int padCount)
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Method Summary | |
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void |
encode(java.io.OutputStream ostream)
Write this value's DER encoding to an output stream using its own base tag. |
void |
encode(Tag implicitTag,
java.io.OutputStream ostream)
Write this value's DER encoding to an output stream using an implicit tag. |
byte[] |
getBits()
Returns the bits packed into an array of bytes, with padding at the end. |
int |
getPadCount()
Returns the number of padding bits at the end of the array. |
boolean |
getRemoveTrailingZeroes()
Determines whether the DER-encoding of this bitstring will have its trailing zeroes removed. |
Tag |
getTag()
Returns the base tag for this type, not counting any tags that may be imposed on it by its context. |
static BIT_STRING.Template |
getTemplate()
|
void |
setRemoveTrailingZeroes(boolean removeTrailingZeroes)
Determines whether the DER-encoding of this bitstring will have its trailing zeroes removed. |
java.util.BitSet |
toBitSet()
Copies this BIT STRING into a Java BitSet. |
boolean[] |
toBooleanArray()
Copies this BIT STRING into a boolean array. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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public static final Tag TAG
public static final Form FORM
Constructor Detail |
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public BIT_STRING(byte[] bits, int padCount) throws java.lang.NumberFormatException
bits
- The bits packed into an array of bytes, with padding
at the end. The array may be empty (but not null), in which case
padCount
must be zero. The array is referenced,
not cloned.padCount
- The number of padding bits at the end of the array.
Must be in the range [0,7]
.
java.lang.NumberFormatException
- If padCount
is not in
the range [0,7]
, or bits
is
empty and padCount
is non-zero.public BIT_STRING(java.util.BitSet bs, int numBits) throws java.lang.NumberFormatException
bs
- A BitSet.numBits
- The number of bits to copy from the BitSet.
This is necessary because the size of a BitSet is always padded
up to a multiple of 64, but not all of these bits may
be significant.
java.lang.NumberFormatException
- If numBits
is larger
than bs.size()
or less than zero.Method Detail |
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public boolean getRemoveTrailingZeroes()
public void setRemoveTrailingZeroes(boolean removeTrailingZeroes)
public byte[] getBits()
padCount
must be zero. The array is referenced,
not cloned.
public java.util.BitSet toBitSet()
public boolean[] toBooleanArray()
true
for 1 and false
for 0.
public int getPadCount()
[0,7]
.
public Tag getTag()
ASN1Value
getTag
in interface ASN1Value
public void encode(java.io.OutputStream ostream) throws java.io.IOException
ASN1Value
encode
in interface ASN1Value
java.io.IOException
public void encode(Tag implicitTag, java.io.OutputStream ostream) throws java.io.IOException
ASN1Value
encode
in interface ASN1Value
java.io.IOException
public static BIT_STRING.Template getTemplate()
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