/// <summary>
/// See this[]
/// </summary>
/// <param name="index">The index</param>
/// <returns>The sub key pattern</returns>
private KeyPattern GetAtIndex(BigInteger index)
{
//calculate the wildcard positions on which we want to split:
int[] splittingPositions = new int[pattern.wildcardList.Count];
for (int k = pattern.wildcardList.Count - 1; k >= 0; k--)
{
splittingPositions[k] = (int)(index % splittingQuotient[k]);
index /= splittingQuotient[k];
}
Debug.Assert(index == 0);
//split up the sub pattern parts:
KeyPattern subpart = new KeyPattern(pattern.GetPattern());
subpart.wildcardList = new ArrayList();
for (int k = 0; k < pattern.wildcardList.Count; k++)
{
Wildcard subwc = ((Wildcard)pattern.wildcardList[k]);
char[] values = new char[256];
int sublength = subwc.size() / splittingQuotient[k];
for (int i = 0; i < sublength; i++)
{
values[i] = subwc.getChar(i + splittingPositions[k] * sublength);
}
Wildcard newwc = new Wildcard(values, sublength);
subpart.wildcardList.Add(newwc);
}
return(subpart);
}
/// <summary>
/// Returns the key pattern representation for the merged subkeys from index "from" to index "to".
/// </summary>
/// <returns></returns>
public string GetPatternRangeRepresentation(BigInteger from, BigInteger to)
{
KeyPattern mergedPattern = new KeyPattern(pattern.GetPattern());
mergedPattern.wildcardList = new ArrayList();
var rangeLength = to - from + 1;
for (int i = 0; i < pattern.wildcardList.Count; i++)
{
//Add all chars of wildcard i from all subpattern in ranche together:
HashSet <char> charSet = new HashSet <char>();
for (BigInteger c = from; c <= to; c++)
{
var wc = (Wildcard)(this[c].wildcardList[i]);
for (int x = 0; x < wc.getLength(); x++)
{
charSet.Add(wc.getChars()[x]);
}
}
//Add merged chars to merged pattern:
var mergedChars = new char[charSet.Count];
charSet.CopyTo(mergedChars);
mergedPattern.wildcardList.Add(new Wildcard(mergedChars, charSet.Count));
}
return(mergedPattern.WildcardKey);
}
/// <summary>
/// returns the "movements" of the key, i.e. how each relevant wildcard has to be "rotated" to produce the next key.
/// </summary>
/// <returns></returns>
public IKeyMovement[] getKeyMovements()
{
KeyPattern fullKeyPattern = new KeyPattern(pattern);
fullKeyPattern.WildcardKey = pattern;
int arraySize = 0;
foreach (Wildcard wc in this.wildcardList)
{
if (wc.getLength() > 1)
{
arraySize++;
}
}
IKeyMovement[] result = new IKeyMovement[arraySize];
int c = 0;
for (int i = 0; i < wildcardList.Count; i++)
{
if (((Wildcard)this.wildcardList[i]).getLength() > 1)
{
result[c] = getWildcardMovement((Wildcard)this.wildcardList[i], (Wildcard)fullKeyPattern.wildcardList[i]);
c++;
}
}
return(result);
}
/// <summary>
/// Deserialize a byte-representation of an KeyPattern object. Returns a full-initialized KeyPattern object.
/// </summary>
/// <param name="serializedPattern">byte-representation of an keypattern object</param>
/// <returns>a full-initialized KeyPattern object</returns>
public KeyPattern Deserialize(byte[] serializedPattern)
{
KeyPattern keyPatternToReturn;
string wildcardKey_temp;
string pattern_temp;
MemoryStream memStream = new MemoryStream(serializedPattern);
try
{
/* So i always have the same byte length for int32 values */
int iTest = 500;
int int32ByteLen = BitConverter.GetBytes(iTest).Length;
// Wildcard length and value
byte[] byteLen = new byte[int32ByteLen];
memStream.Read(byteLen, 0, byteLen.Length);
byte[] byteWildcard = new byte[BitConverter.ToInt32(byteLen, 0)];
memStream.Read(byteWildcard, 0, byteWildcard.Length);
wildcardKey_temp = encoder.GetString(byteWildcard, 0, byteWildcard.Length);
// Pattern length and value
memStream.Read(byteLen, 0, byteLen.Length);
byte[] bytePattern = new byte[BitConverter.ToInt32(byteLen, 0)];
memStream.Read(bytePattern, 0, bytePattern.Length);
pattern_temp = encoder.GetString(bytePattern, 0, bytePattern.Length);
}
catch (Exception ex)
{
throw ex;
}
finally
{
memStream.Flush();
memStream.Close();
memStream.Dispose();
}
//int iWildCardLen = serializedPattern[0];
//wildcardKey_temp = encoder.GetString(serializedPattern, 1, iWildCardLen);
//int iPatternLen = serializedPattern[iWildCardLen + 1];
//pattern_temp = encoder.GetString(serializedPattern, iWildCardLen + 2, iPatternLen);
keyPatternToReturn = new KeyPattern(pattern_temp);
// test extracted pattern and wildcardKey!
if (keyPatternToReturn.testWildcardKey(wildcardKey_temp))
{
keyPatternToReturn.WildcardKey = wildcardKey_temp;
return(keyPatternToReturn);
}
else
{
throw (new Exception("Deserializing KeyPattern canceled, because WildcardKey or Pattern aren't valid. "
+ "WildcardKey: '" + wildcardKey_temp + "', Pattern: '" + pattern_temp + "'.\n"));
}
}
public KeyPatternPool(KeyPattern pattern, BigInteger partsize)
{
this.partsize = partsize;
this.pattern = pattern;
splittingQuotient = new int[pattern.wildcardList.Count];
CalculateSplitting();
splittingCounter = new int[pattern.wildcardList.Count];
}
public void Push(KeyPattern pattern)
{
counter--;
if (!Contains(pattern))
{
stack.Push(pattern);
}
else
{
throw new Exception("Pattern already given.");
}
}
public KeyPattern(byte[] serializedPattern)
{
KeyPattern deserializedPattern = Deserialize(serializedPattern);
// set deserialized Pattern to actual pattern
this.pattern = deserializedPattern.pattern;
this.WildcardKey = deserializedPattern.WildcardKey;
//this.wildcardList = deserializedPattern.wildcardList;
if (deserializedPattern == null)
{
throw new Exception("Invalid byte[] representation of KeyPattern!");
}
}
public bool Contains(KeyPattern pattern)
{
if (pattern.wildcardList.Count != this.pattern.wildcardList.Count)
{
return(false);
}
if (pattern.GetPattern() != this.pattern.GetPattern())
{
return(false);
}
bool equal = true;
for (int k = 0; k < pattern.wildcardList.Count; k++)
{
Wildcard wc = ((Wildcard)pattern.wildcardList[k]);
Wildcard thiswc = ((Wildcard)this.pattern.wildcardList[k]);
if (wc.size() != (thiswc.size() / splittingQuotient[k]))
{
return(false);
}
bool bolContains2 = true;
int begin = equal ? splittingCounter[k] : 0;
for (int j = begin; j < splittingQuotient[k]; j++)
{
bool bolContains = true;
for (int i = 0; i < wc.size(); i++)
{
if (wc.getChar(i - wc.count()) != thiswc.getChar(i + j * wc.size()))
{
bolContains = false;
break;
}
}
if (bolContains)
{
equal = (j == splittingCounter[k]);
bolContains2 = true;
break;
}
}
if (!bolContains2)
{
return(false);
}
}
return(!equal);
}
public KeyPattern Pop()
{
if (stack.Count != 0)
{
counter++;
return((KeyPattern)stack.Pop());
}
if (end)
{
return(null);
}
KeyPattern part = new KeyPattern(pattern.GetPattern());
part.wildcardList = new ArrayList();
for (int k = 0; k < pattern.wildcardList.Count; k++)
{
Wildcard wc = ((Wildcard)pattern.wildcardList[k]);
char[] values = new char[256];
int length = wc.size() / splittingQuotient[k];
for (int i = 0; i < length; i++)
{
values[i] = wc.getChar(i + splittingCounter[k] * length);
}
Wildcard newwc = new Wildcard(values, length);
part.wildcardList.Add(newwc);
}
if (!SuccCounter())
{
end = true;
}
counter++;
return(part);
}
public KeyPattern[] split()
{
KeyPattern[] patterns = new KeyPattern[2];
for (int i = 0; i < 2; i++)
{
patterns[i] = new KeyPattern(pattern);
patterns[i].wildcardList = new ArrayList();
}
bool s = false;
for (int i = 0; i < wildcardList.Count; i++)
{
Wildcard wc = ((Wildcard)wildcardList[i]);
if (!s && (wc.size() - wc.count()) > 1)
{
Wildcard[] wcs = wc.split();
patterns[0].wildcardList.Add(wcs[0]);
patterns[1].wildcardList.Add(wcs[1]);
s = true;
}
else
{
patterns[0].wildcardList.Add(new Wildcard(wc));
Wildcard copy = new Wildcard(wc);
if (s)
{
copy.resetCounter();
}
patterns[1].wildcardList.Add(copy);
}
}
if (!s)
{
return(null);
}
return(patterns);
}
public bool Contains(byte[] serializedJob)
{
KeyPattern deserializedPattern = new KeyPattern(serializedJob);
return(Contains(deserializedPattern));
}