java.lang.Object
- org.forgerock.opendj.io.Asn1

```
public final class Asn1
extends Object
```
This class contains various static factory methods for creating ASN.1 readers and writers.

See Also:

Asn1Reader, Asn1Writer

Field Summary

Fields
Modifier and Type	Field	Description
`static byte`	`BOOLEAN_VALUE_FALSE`	The byte array containing the pre-encoded ASN.1 encoding for a boolean value of "false".
`static byte`	`BOOLEAN_VALUE_TRUE`	The byte array containing the pre-encoded ASN.1 encoding for a boolean value of "false".
`static int`	`ELEMENT_READ_STATE_NEED_ADDITIONAL_LENGTH_BYTES`	The ASN.1 element decoding state that indicates that the next byte read should be additional bytes of a multi-byte length.
`static int`	`ELEMENT_READ_STATE_NEED_FIRST_LENGTH_BYTE`	The ASN.1 element decoding state that indicates that the next byte read should be the first byte for the element length.
`static int`	`ELEMENT_READ_STATE_NEED_TYPE`	The ASN.1 element decoding state that indicates that the next byte read should be the BER type for a new element.
`static int`	`ELEMENT_READ_STATE_NEED_VALUE_BYTES`	The ASN.1 element decoding state that indicates that the next byte read should be applied to the value of the element.
`static byte`	`OBJECT_IDENTIFIER`	The BER type that is assigned to the object identifier type.
`static byte`	`TYPE_MASK_CONSTRUCTED`	The bitmask that can be ANDed with the BER type to determine if the element is constructed.
`static byte`	`TYPE_MASK_CONTEXT`	The bitmask that can be ANDed with the BER type to determine if the element is in the context-specific class.
`static byte`	`UNIVERSAL_BIT_STRING_TYPE`	The BER type that is assigned to the universal bit string type.
`static byte`	`UNIVERSAL_BOOLEAN_TYPE`	The BER type that is assigned to the universal Boolean element.
`static byte`	`UNIVERSAL_ENUMERATED_TYPE`	The BER type that is assigned to the universal enumerated type.
`static byte`	`UNIVERSAL_GENERALIZED_TIME_TYPE`	The BER type that is assigned to the generalized time type.
`static byte`	`UNIVERSAL_INTEGER_TYPE`	The BER type that is assigned to the universal integer type.
`static byte`	`UNIVERSAL_NULL_TYPE`	The BER type that is assigned to the universal null type.
`static byte`	`UNIVERSAL_OCTET_STRING_TYPE`	The BER type that is assigned to the universal octet string type.
`static byte`	`UNIVERSAL_PRINTABLE_STRING_TYPE`	The BER type that is assigned to the universal Printable String type.
`static byte`	`UNIVERSAL_SEQUENCE_TYPE`	The BER type that is assigned to the universal sequence type.
`static byte`	`UNIVERSAL_SET_TYPE`	The BER type that is assigned to the universal set type.
`static byte`	`UNIVERSAL_UTC_TIME_TYPE`	The BER type that is assigned to the utc time type.

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static Asn1Reader`	`getReader(byte[] array)`	Returns an ASN.1 reader whose source is the provided byte array and having an unlimited maximum BER element size.
`static Asn1Reader`	`getReader(byte[] array, int maxElementSize)`	Returns an ASN.1 reader whose source is the provided byte array and having a user defined maximum BER element size.
`static Asn1Reader`	`getReader(InputStream stream)`	Returns an ASN.1 reader whose source is the provided input stream and having an unlimited maximum BER element size.
`static Asn1Reader`	`getReader(InputStream stream, int maxElementSize)`	Returns an ASN.1 reader whose source is the provided input stream and having a user defined maximum BER element size.
`static Asn1Reader`	`getReader(ByteSequence sequence)`	Returns an ASN.1 reader whose source is the provided byte sequence and having an unlimited maximum BER element size.
`static Asn1Reader`	`getReader(ByteSequence sequence, int maxElementSize)`	Returns an ASN.1 reader whose source is the provided byte sequence and having a user defined maximum BER element size.
`static Asn1Reader`	`getReader(ByteSequenceReader reader)`	Returns an ASN.1 reader whose source is the provided byte sequence reader and having an unlimited maximum BER element size.
`static Asn1Reader`	`getReader(ByteSequenceReader reader, int maxElementSize)`	Returns an ASN.1 reader whose source is the provided byte sequence reader and having a user defined maximum BER element size.
`static Asn1Writer`	`getWriter(OutputStream stream)`	Returns an ASN.1 writer whose destination is the provided output stream.
`static Asn1Writer`	`getWriter(OutputStream stream, int maxBufferSize)`	Returns an ASN.1 writer whose destination is the provided output stream.
`static Asn1Writer`	`getWriter(ByteStringBuilder builder)`	Returns an ASN.1 writer whose destination is the provided byte string builder.
`static Asn1Writer`	`getWriter(ByteStringBuilder builder, int maxBufferSize)`	Returns an ASN.1 writer whose destination is the provided byte string builder.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - BOOLEAN_VALUE_FALSE
```
public static final byte BOOLEAN_VALUE_FALSE
```
    The byte array containing the pre-encoded ASN.1 encoding for a boolean value of "false".
    
    See Also:
    
    Constant Field Values
  - BOOLEAN_VALUE_TRUE
```
public static final byte BOOLEAN_VALUE_TRUE
```
    The byte array containing the pre-encoded ASN.1 encoding for a boolean value of "false".
    
    See Also:
    
    Constant Field Values
  - UNIVERSAL_BOOLEAN_TYPE
```
public static final byte UNIVERSAL_BOOLEAN_TYPE
```
    The BER type that is assigned to the universal Boolean element.
    
    See Also:
    
    Constant Field Values
  - UNIVERSAL_INTEGER_TYPE
```
public static final byte UNIVERSAL_INTEGER_TYPE
```
    The BER type that is assigned to the universal integer type.
    
    See Also:
    
    Constant Field Values
  - UNIVERSAL_BIT_STRING_TYPE
```
public static final byte UNIVERSAL_BIT_STRING_TYPE
```
    The BER type that is assigned to the universal bit string type.
    
    See Also:
    
    Constant Field Values
  - UNIVERSAL_OCTET_STRING_TYPE
```
public static final byte UNIVERSAL_OCTET_STRING_TYPE
```
    The BER type that is assigned to the universal octet string type.
    
    See Also:
    
    Constant Field Values
  - UNIVERSAL_NULL_TYPE
```
public static final byte UNIVERSAL_NULL_TYPE
```
    The BER type that is assigned to the universal null type.
    
    See Also:
    
    Constant Field Values
  - OBJECT_IDENTIFIER
```
public static final byte OBJECT_IDENTIFIER
```
    The BER type that is assigned to the object identifier type.
    
    See Also:
    
    Constant Field Values
  - UNIVERSAL_PRINTABLE_STRING_TYPE
```
public static final byte UNIVERSAL_PRINTABLE_STRING_TYPE
```
    The BER type that is assigned to the universal Printable String type.
    
    See Also:
    
    Constant Field Values
  - UNIVERSAL_UTC_TIME_TYPE
```
public static final byte UNIVERSAL_UTC_TIME_TYPE
```
    The BER type that is assigned to the utc time type.
    
    See Also:
    
    Constant Field Values
  - UNIVERSAL_GENERALIZED_TIME_TYPE
```
public static final byte UNIVERSAL_GENERALIZED_TIME_TYPE
```
    The BER type that is assigned to the generalized time type.
    
    See Also:
    
    Constant Field Values
  - UNIVERSAL_ENUMERATED_TYPE
```
public static final byte UNIVERSAL_ENUMERATED_TYPE
```
    The BER type that is assigned to the universal enumerated type.
    
    See Also:
    
    Constant Field Values
  - UNIVERSAL_SEQUENCE_TYPE
```
public static final byte UNIVERSAL_SEQUENCE_TYPE
```
    The BER type that is assigned to the universal sequence type.
    
    See Also:
    
    Constant Field Values
  - UNIVERSAL_SET_TYPE
```
public static final byte UNIVERSAL_SET_TYPE
```
    The BER type that is assigned to the universal set type.
    
    See Also:
    
    Constant Field Values
  - ELEMENT_READ_STATE_NEED_ADDITIONAL_LENGTH_BYTES
```
public static final int ELEMENT_READ_STATE_NEED_ADDITIONAL_LENGTH_BYTES
```
    The ASN.1 element decoding state that indicates that the next byte read should be additional bytes of a multi-byte length.
    
    See Also:
    
    Constant Field Values
  - ELEMENT_READ_STATE_NEED_FIRST_LENGTH_BYTE
```
public static final int ELEMENT_READ_STATE_NEED_FIRST_LENGTH_BYTE
```
    The ASN.1 element decoding state that indicates that the next byte read should be the first byte for the element length.
    
    See Also:
    
    Constant Field Values
  - ELEMENT_READ_STATE_NEED_TYPE
```
public static final int ELEMENT_READ_STATE_NEED_TYPE
```
    The ASN.1 element decoding state that indicates that the next byte read should be the BER type for a new element.
    
    See Also:
    
    Constant Field Values
  - ELEMENT_READ_STATE_NEED_VALUE_BYTES
```
public static final int ELEMENT_READ_STATE_NEED_VALUE_BYTES
```
    The ASN.1 element decoding state that indicates that the next byte read should be applied to the value of the element.
    
    See Also:
    
    Constant Field Values
  - TYPE_MASK_CONSTRUCTED
```
public static final byte TYPE_MASK_CONSTRUCTED
```
    The bitmask that can be ANDed with the BER type to determine if the element is constructed.
    
    See Also:
    
    Constant Field Values
  - TYPE_MASK_CONTEXT
```
public static final byte TYPE_MASK_CONTEXT
```
    The bitmask that can be ANDed with the BER type to determine if the element is in the context-specific class.
    
    See Also:
    
    Constant Field Values
- Method Detail
  - getReader
```
public static Asn1Reader getReader(byte[] array)
```
    Returns an ASN.1 reader whose source is the provided byte array and having an unlimited maximum BER element size.
    
    Parameters:
    
    array - The byte array to use.
    
    Returns:
    
    The new ASN.1 reader.
  - getReader
```
public static Asn1Reader getReader(byte[] array,
                                   int maxElementSize)
```
    Returns an ASN.1 reader whose source is the provided byte array and having a user defined maximum BER element size.
    
    Parameters:
    
    array - The byte array to use.
    
    maxElementSize - The maximum BER element size, or 0 to indicate that there is no limit.
    
    Returns:
    
    The new ASN.1 reader.
  - getReader
```
public static Asn1Reader getReader(ByteSequence sequence)
```
    Returns an ASN.1 reader whose source is the provided byte sequence and having an unlimited maximum BER element size.
    
    Parameters:
    
    sequence - The byte sequence to use.
    
    Returns:
    
    The new ASN.1 reader.
  - getReader
```
public static Asn1Reader getReader(ByteSequence sequence,
                                   int maxElementSize)
```
    Returns an ASN.1 reader whose source is the provided byte sequence and having a user defined maximum BER element size.
    
    Parameters:
    
    sequence - The byte sequence to use.
    
    maxElementSize - The maximum BER element size, or 0 to indicate that there is no limit.
    
    Returns:
    
    The new ASN.1 reader.
  - getReader
```
public static Asn1Reader getReader(ByteSequenceReader reader)
```
    Returns an ASN.1 reader whose source is the provided byte sequence reader and having an unlimited maximum BER element size.
    
    Parameters:
    
    reader - The byte sequence reader to use.
    
    Returns:
    
    The new ASN.1 reader.
  - getReader
```
public static Asn1Reader getReader(ByteSequenceReader reader,
                                   int maxElementSize)
```
    Returns an ASN.1 reader whose source is the provided byte sequence reader and having a user defined maximum BER element size.
    
    Parameters:
    
    reader - The byte sequence reader to use.
    
    maxElementSize - The maximum BER element size, or 0 to indicate that there is no limit.
    
    Returns:
    
    The new ASN.1 reader.
  - getReader
```
public static Asn1Reader getReader(InputStream stream)
```
    Returns an ASN.1 reader whose source is the provided input stream and having an unlimited maximum BER element size.
    
    Parameters:
    
    stream - The input stream to use.
    
    Returns:
    
    The new ASN.1 reader.
  - getReader
```
public static Asn1Reader getReader(InputStream stream,
                                   int maxElementSize)
```
    Returns an ASN.1 reader whose source is the provided input stream and having a user defined maximum BER element size.
    
    Parameters:
    
    stream - The input stream to use.
    
    maxElementSize - The maximum BER element size, or 0 to indicate that there is no limit.
    
    Returns:
    
    The new ASN.1 reader.
  - getWriter
```
public static Asn1Writer getWriter(ByteStringBuilder builder)
```
    Returns an ASN.1 writer whose destination is the provided byte string builder.
    
    Parameters:
    
    builder - The byte string builder to use.
    
    Returns:
    
    The new ASN.1 writer.
  - getWriter
```
public static Asn1Writer getWriter(ByteStringBuilder builder,
                                   int maxBufferSize)
```
    Returns an ASN.1 writer whose destination is the provided byte string builder.
    
    Parameters:
    
    builder - The output stream to use.
    
    maxBufferSize - The threshold capacity beyond which internal cached buffers used for encoding and decoding ASN1 will be trimmed after use.
    
    Returns:
    
    The new ASN.1 writer.
  - getWriter
```
public static Asn1Writer getWriter(OutputStream stream)
```
    Returns an ASN.1 writer whose destination is the provided output stream.
    
    Parameters:
    
    stream - The output stream to use.
    
    Returns:
    
    The new ASN.1 writer.
  - getWriter
```
public static Asn1Writer getWriter(OutputStream stream,
                                   int maxBufferSize)
```
    Returns an ASN.1 writer whose destination is the provided output stream.
    
    Parameters:
    
    stream - The output stream to use.
    
    maxBufferSize - The threshold capacity beyond which internal cached buffers used for encoding and decoding ASN1 will be trimmed after use.
    
    Returns:
    
    The new ASN.1 writer.

Class Asn1

Field Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

BOOLEAN_VALUE_FALSE

BOOLEAN_VALUE_TRUE

UNIVERSAL_BOOLEAN_TYPE

UNIVERSAL_INTEGER_TYPE

UNIVERSAL_BIT_STRING_TYPE

UNIVERSAL_OCTET_STRING_TYPE

UNIVERSAL_NULL_TYPE

OBJECT_IDENTIFIER

UNIVERSAL_PRINTABLE_STRING_TYPE

UNIVERSAL_UTC_TIME_TYPE

UNIVERSAL_GENERALIZED_TIME_TYPE

UNIVERSAL_ENUMERATED_TYPE

UNIVERSAL_SEQUENCE_TYPE

UNIVERSAL_SET_TYPE

ELEMENT_READ_STATE_NEED_ADDITIONAL_LENGTH_BYTES

ELEMENT_READ_STATE_NEED_FIRST_LENGTH_BYTE

ELEMENT_READ_STATE_NEED_TYPE

ELEMENT_READ_STATE_NEED_VALUE_BYTES

TYPE_MASK_CONSTRUCTED

TYPE_MASK_CONTEXT

Method Detail

getReader

getReader

getReader

getReader

getReader

getReader

getReader

getReader

getWriter

getWriter

getWriter

getWriter