public class Hash extends SimpleDataStructure
Modifier and Type | Field and Description |
---|---|
static Hash |
FAKE_HASH |
static int |
HASH_LENGTH |
_data
Modifier and Type | Method and Description |
---|---|
static void |
clearCache() |
static Hash |
create(byte[] data)
Pull from cache or return new
WARNING - If the SDS is found in the cache, the passed-in
byte array will be returned to the SimpleByteCache for reuse.
|
static Hash |
create(byte[] data,
int off)
Pull from cache or return new
|
static Hash |
create(InputStream in)
Pull from cache or return new
|
int |
hashCode()
a Hash is a hash, so just use the first 4 bytes for speed
|
int |
length()
The legal length of the byte array in this data structure
|
void |
readBytes(InputStream in)
Sets the data.
|
void |
setData(byte[] data)
Sets the data.
|
String |
toBase32()
For convenience.
|
String |
toBase64()
render the structure into modified base 64 notation
|
calculateHash, equals, fromBase64, fromByteArray, getData, toByteArray, toString, writeBytes
read
public static final int HASH_LENGTH
public static final Hash FAKE_HASH
public Hash()
public Hash(byte[] data)
IllegalArgumentException
- if data is not 32 bytes (null is ok)public static Hash create(byte[] data)
IllegalArgumentException
- if data is not the correct number of bytespublic static Hash create(byte[] data, int off)
ArrayIndexOutOfBoundsException
- if not enough bytespublic static Hash create(InputStream in) throws IOException
IOException
public int length()
SimpleDataStructure
length
in class SimpleDataStructure
public void setData(byte[] data)
SimpleDataStructure
setData
in class SimpleDataStructure
data
- of correct length, or nullIllegalArgumentException
- if data is not 32 bytes (null is ok)public void readBytes(InputStream in) throws DataFormatException, IOException
SimpleDataStructure
readBytes
in interface DataStructure
readBytes
in class SimpleDataStructure
in
- the stream to readDataFormatException
- if the data is improperly formattedIOException
- if there was a problem reading the streampublic int hashCode()
hashCode
in class SimpleDataStructure
public String toBase64()
DataStructure
toBase64
in interface DataStructure
toBase64
in class SimpleDataStructure
public String toBase32()
public static void clearCache()