public static void main(String args[]) throws Exception {
Scanner cin = new Scanner(System.in);
BigInteger s, M;
int p, i;
while (cin.hasNext()) {
p = cin.nextInt();
s = BigInteger.valueOf(4);
M = BigInteger.ONE;
M = M.shiftLeft(p).subtract(BigInteger.ONE);
for (i = 0; i < p - 2; ++i) {
s = s.multiply(s).subtract(BigInteger.valueOf(2));
while (s.bitLength() > p) {
s = s.shiftRight(p).add(s.and(M));
}
}
if (s.compareTo(BigInteger.ZERO) == 0 || s.compareTo(M) == 0) {
System.out.println(0);
continue;
}
String ans = "";
while (s.compareTo(BigInteger.ZERO) > 0) {
long buf = s.mod(BigInteger.valueOf(16)).longValue();
ans += Integer.toHexString((int) buf);
s = s.divide(BigInteger.valueOf(16));
}
for (i = ans.length() - 1; i >= 0; --i) System.out.print(ans.charAt(i));
System.out.println();
}
}
public static List range(BigInteger start, BigInteger end) {
List l = new List();
long st = start.longValue();
long en = start.longValue();
if (BigInteger.valueOf(st).equals(start) && BigInteger.valueOf(en).equals(end)) {
int dir = st < en ? 1 : -1;
while (st != en) {
l.add(BigInteger.valueOf(st));
st = st + dir;
}
} else {
BigInteger dir;
if (start.compareTo(end) < 0) {
dir = BigInteger.ONE;
} else {
dir = BigInteger.valueOf(-1);
}
while (!start.equals(end)) {
l.add(start);
start = start.add(dir);
}
}
return l;
}
public static void main(String args[]) throws IOException {
BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
while (true) {
String str = in.readLine();
// Scanner in = new Scanner(System.in);
if (str == null) {
break;
} else {
BigInteger num = new BigInteger(str);
if (str.equals("0") || str.equals("1")) {
System.out.println(str);
} else {
// BigInteger num = new BigInteger(str);
//
// System.out.println(num.subtract(BigInteger.ONE).multiply(BigInteger.valueOf(2)));
System.out.println(num.multiply(BigInteger.valueOf(2)).subtract(BigInteger.valueOf(2)));
}
}
}
}
public static void testICDE() {
// Number of total operations
int numberOfTests = 5;
// Length of the p, note that n=p.q
int lengthp = 512;
Paillier esystem = new Paillier();
Random rd = new Random();
PaillierPrivateKey key = KeyGen.PaillierKey(lengthp, 122333356);
esystem.setDecryptEncrypt(key);
// let's test our algorithm by encrypting and decrypting few instances
long start = System.currentTimeMillis();
for (int i = 0; i < numberOfTests; i++) {
BigInteger m1 = BigInteger.valueOf(Math.abs(rd.nextLong()));
BigInteger m2 = BigInteger.valueOf(Math.abs(rd.nextLong()));
BigInteger c1 = esystem.encrypt(m1);
BigInteger c2 = esystem.encrypt(m2);
BigInteger c3 = esystem.multiply(c1, m2);
c1 = esystem.add(c1, c2);
c1 = esystem.add(c1, c3);
esystem.decrypt(c1);
}
long stop = System.currentTimeMillis();
System.out.println(
"Running time per comparison in milliseconds: " + ((stop - start) / numberOfTests));
}
static {
// TODO: DecimalFormat uses ROUND_HALF_EVEN, not ROUND_HALF_UP
// Float: precision of 7 (6 digits after .)
floatFormatter = new DecimalFormat();
floatFormatter.applyPattern("0.######E0");
// Double: precision of 16 (15 digits after .)
doubleFormatter = new DecimalFormat();
doubleFormatter.applyPattern("0.###############E0");
bigIntTenPow = new BigInteger[20];
bigIntMinUnscaled = new BigInteger[20];
bigIntMaxUnscaled = new BigInteger[20];
for (int i = 0; i < bigIntTenPow.length; i++) {
bigIntTenPow[i] = bigIntTen.pow(i);
if (i < 19) {
bigIntMaxUnscaled[i] = bigIntTenPow[i].subtract(BigInteger.ONE);
bigIntMinUnscaled[i] = bigIntMaxUnscaled[i].negate();
} else {
bigIntMaxUnscaled[i] = BigInteger.valueOf(Long.MAX_VALUE);
bigIntMinUnscaled[i] = BigInteger.valueOf(Long.MIN_VALUE);
}
}
}
public PaillierCryptoSystem(int a, int b) {
p = a;
q = b;
n = BigInteger.valueOf(p).multiply(BigInteger.valueOf(q));
lambda = psi = lcm(p - 1, q - 1);
g = n.add(BigInteger.valueOf(1));
nu = psi.modInverse(n);
}
public BigInteger Encrypto(int m, BigInteger n, BigInteger g) {
int r = new Random().nextInt(10) + 3;
BigInteger Ans = BigInteger.ZERO;
BigInteger nSquare = n.multiply(n);
Ans = g.modPow(BigInteger.valueOf(m), nSquare);
Ans = Ans.multiply(BigInteger.valueOf(r).modPow(n, nSquare));
Ans = Ans.remainder(nSquare);
return Ans;
}
public PaillierCryptoSystem() {
p = 100000 + (new Random().nextInt(4) + 1) * 10000 + 1;
while (!isPrime(p)) p += 2;
q = p + 2;
while (!isPrime(q)) q += 2;
n = BigInteger.valueOf(p).multiply(BigInteger.valueOf(q));
lambda = psi = lcm(p - 1, q - 1);
g = n.add(BigInteger.valueOf(1));
nu = psi.modInverse(n);
}
public static void process() {
Arrays.sort(bookHeight);
BigInteger sum = BigInteger.valueOf(0L);
BigInteger temp;
int iCount = 0;
for (int i = bookHeight.length - 1; i >= 0; i--) {
sum = sum.add(BigInteger.valueOf((long) (bookHeight[i])));
temp = sum.max(b);
iCount++;
if (temp.equals(sum)) break;
}
System.out.print(iCount);
}
public void testReferenceLinkAttribute() {
Session ssn = SessionManager.getSession();
DataObject user = ssn.create(getModelName() + ".User");
user.set("id", BigInteger.valueOf(0));
user.set("email", "*****@*****.**");
user.set("firstName", "foo");
user.set("lastNames", "bar");
user.save();
DataObject[] images = new DataObject[2];
for (int i = 0; i < images.length; i++) {
images[i] = ssn.create(getModelName() + ".Image");
images[i].set("id", BigInteger.valueOf(i));
byte[] bytes = "This is the image.".getBytes();
images[i].set("bytes", bytes);
images[i].save();
}
// set image
user.set("image", images[0]);
user.save();
// retrieve and then update caption
DataAssociationCursor dac = ((DataAssociation) images[0].get("users")).cursor();
dac.next();
assertNull(dac.getLinkProperty("caption"));
assertEquals(user, dac.getDataObject());
DataObject link = dac.getLink();
link.set("caption", "caption");
link.save();
dac = ((DataAssociation) images[0].get("users")).cursor();
dac.next();
assertEquals("caption", dac.getLinkProperty("caption"));
assertEquals(1L, ((DataAssociation) images[0].get("users")).size());
// set new image as image
user.set("image", images[1]);
user.save();
// check that old image is no longer associated with user
assertEquals(0L, ((DataAssociation) images[0].get("users")).size());
// check that new image is associated with user and has no caption
dac = ((DataAssociation) images[1].get("users")).cursor();
dac.next();
assertNull(dac.getLinkProperty("caption"));
assertEquals(1L, ((DataAssociation) images[1].get("users")).size());
}
public void testArticleImageLink() {
Session ssn = SessionManager.getSession();
DataObject article = ssn.create(getModel() + ".Article");
article.set("id", BigInteger.ZERO);
String text = "This is the article text.";
article.set("text", text);
for (int i = 0; i < 10; i++) {
DataObject image = ssn.create(getModel() + ".Image");
image.set("id", new BigInteger(Integer.toString(i)));
byte[] bytes = "This is the image.".getBytes();
image.set("bytes", bytes);
image.save();
}
DataAssociation links = (DataAssociation) article.get("images");
DataCollection images = ssn.retrieve(getModel() + ".Image");
while (images.next()) {
DataObject image = images.getDataObject();
DataObject link = ssn.create(getModel() + ".ArticleImageLink");
link.set("article", article);
link.set("image", image);
link.set("caption", "The caption for: " + image.getOID());
links.add(link);
}
article.save();
DataAssociationCursor cursor = links.cursor();
assertEquals(10, cursor.size());
DataCollection aiLinks = ssn.retrieve(getModel() + ".ArticleImageLink");
aiLinks.addEqualsFilter("image.id", new BigDecimal(5));
if (aiLinks.next()) {
DataObject linkArticle = (DataObject) aiLinks.get("article");
DataObject linkImage = (DataObject) aiLinks.get("image");
String caption = (String) aiLinks.get("caption");
assertEquals(BigInteger.valueOf(0), linkArticle.get("id"));
assertEquals(BigInteger.valueOf(5), linkImage.get("id"));
if (aiLinks.next()) {
fail("too many rows");
}
} else {
fail("no rows returned");
}
article.delete();
}
public static void main(String[] args) throws Exception {
BigInteger T = BigInteger.valueOf(0);
BigInteger TB = BigInteger.valueOf(0);
BigInteger NTB = BigInteger.valueOf(0);
BigInteger S = BigInteger.valueOf(0);
BigInteger MAX = BigInteger.valueOf(1);
int j;
for (j = 0; j < 100; j++) MAX = MAX.multiply(BigInteger.valueOf(10));
for (; ; ) {
int i, t, a, b;
if (in.nextToken() != StreamTokenizer.TT_NUMBER) break;
t = (int) in.nval;
if (in.nextToken() != StreamTokenizer.TT_NUMBER) break;
a = (int) in.nval;
if (in.nextToken() != StreamTokenizer.TT_NUMBER) break;
b = (int) in.nval;
// System.out.print("(");
// System.out.print(t);
// System.out.print("^");
// System.out.print(a);
// System.out.print("-1)/(");
// System.out.print(t);
// System.out.print("^");
// System.out.print(b);
// System.out.print("-1) ");
if (t == 1 || a % b != 0) {
System.out.print("bad!\n");
continue;
}
T = BigInteger.valueOf(t);
TB = BigInteger.valueOf(1);
for (i = 0; i < b; i++) {
TB = TB.multiply(T);
if (TB.compareTo(MAX) >= 0) break;
}
NTB = BigInteger.valueOf(1);
S = BigInteger.valueOf(0);
for (i = 0; i < a; i += b) {
S = S.add(NTB);
if (S.compareTo(MAX) >= 0) break;
NTB = NTB.multiply(TB);
}
if (S.compareTo(MAX) >= 0) System.out.print("bad!");
else System.out.print(S);
System.out.print("\n");
}
}
void solve(InputReader in) {
try {
long start = System.currentTimeMillis();
F[0] = BigInteger.ONE;
for (i = 1; i <= 30; ++i) F[i] = F[i - 1].multiply(BigInteger.valueOf(i));
for (i = 1; i <= 30; ++i) {
for (j = 1; j <= i; ++j) {
C[i][j] = getResult(i, j);
}
}
t = in.nextInt();
while (t-- > 0) {
for (i = 1; i <= 30; ++i) g[i] = new ArrayList();
n = in.nextInt();
for (i = 1; i <= n; ++i) a[i] = in.nextInt();
root = a[1];
p = 2;
Construct(root, 1, 30);
Pair ans = Calculate(root);
System.out.println(ans.x);
}
long end = System.currentTimeMillis();
if (time) System.out.println("Execution time: " + (double) (end - start) / 1000.0);
} catch (Exception e) {
System.out.println("Error: " + e);
}
;
}
public static boolean check(long n, int p) {
BigInteger P = BigInteger.TEN.pow(p), Q = BigInteger.TEN.pow(p - 1);
BigInteger N = BigInteger.ONE, tmp = BigInteger.valueOf(2);
while (n > 0) {
if ((n % 2) == 1) {
N = N.multiply(tmp);
N = N.mod(P);
}
tmp = tmp.multiply(tmp);
tmp = tmp.mod(P);
n >>= 1;
}
N = N.divide(Q);
if (N.equals(BigInteger.ONE) || N.equals(BigInteger.valueOf(2))) return true;
else return false;
}
/**
* Coerce a string into a Whiley int list.
*
* @param str
* @return
*/
public static List str2il(String str) {
List r = new List(str.length());
for (int i = 0; i != str.length(); ++i) {
r.add(BigInteger.valueOf(str.charAt(i)));
}
return r;
}
static long calc(BigInteger k1) {
long x = 1;
while (true) {
long res = mul(k1, x, BigInteger.valueOf(1000000000000l)).longValue();
if (x == res && res > 100000000000l) return res;
x = res;
}
}
public static int turn(int p, int ix) {
char c = a.charAt(ix);
if ('0' <= c && c <= '9') {
scs[p] = scs[p].add(BigInteger.valueOf((int)(c - '0')));
}
else {
char op = c;
while (!('0' <= c && c <= '9')) {
ix++;
if (ix == a.length()) return ix;
c = a.charAt(ix);
}
if (op == 'X') scs[p] = scs[p].multiply(BigInteger.valueOf((int)(c - '0')));
if (op == 'D') scs[p] = scs[p].divide(BigInteger.valueOf((int)(c - '0')));
if (op == 'S') scs[p] = scs[p].subtract(BigInteger.valueOf((int)(c - '0')));
}
return ix + 1;
}
public static void main(String[] args) throws IOException {
Scanner scanner = new Scanner(new BufferedInputStream(System.in));
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
while (scanner.hasNextInt()) {
int n = scanner.nextInt();
int k = scanner.nextInt();
BigInteger sum = BigInteger.ONE;
for (int i = n; i > n - k; i--) {
sum = sum.multiply(BigInteger.valueOf(i));
}
for (int i = 2; i <= k; i++) {
sum = sum.divide(BigInteger.valueOf(i));
}
System.out.println(sum.toString().length());
}
}
void start() throws IOException {
BigInteger n = new BigInteger(reader.next());
String s = reader.next();
BigInteger answer = BigInteger.ONE;
while (n.compareTo(BigInteger.ONE) > 0) {
answer = answer.multiply(n);
n = n.subtract(BigInteger.valueOf(s.length()));
}
writer.println(answer);
}
@Override
public final XMLGregorianCalendar toJava() {
return DF.newXMLGregorianCalendar(
yea == Long.MAX_VALUE ? null : BigInteger.valueOf(yea > 0 ? yea : yea - 1),
mon >= 0 ? mon + 1 : Integer.MIN_VALUE,
day >= 0 ? day + 1 : Integer.MIN_VALUE,
hou >= 0 ? hou : Integer.MIN_VALUE,
min >= 0 ? min : Integer.MIN_VALUE,
sec != null ? sec.intValue() : Integer.MIN_VALUE,
sec != null ? sec.remainder(BigDecimal.ONE) : null,
tz == Short.MAX_VALUE ? Integer.MIN_VALUE : tz);
}
public static void main(String[] args) {
// Generics, varargs & boxing working together:
List<Integer> li = Arrays.asList(1, 2, 3, 4, 5, 6, 7);
Integer result = reduce(li, new IntegerAdder());
print(result);
result = reduce(li, new IntegerSubtracter());
print(result);
print(filter(li, new GreaterThan<Integer>(4)));
print(forEach(li, new MultiplyingIntegerCollector()).result());
print(
forEach(filter(li, new GreaterThan<Integer>(4)), new MultiplyingIntegerCollector())
.result());
MathContext mc = new MathContext(7);
List<BigDecimal> lbd =
Arrays.asList(
new BigDecimal(1.1, mc),
new BigDecimal(2.2, mc),
new BigDecimal(3.3, mc),
new BigDecimal(4.4, mc));
BigDecimal rbd = reduce(lbd, new BigDecimalAdder());
print(rbd);
print(filter(lbd, new GreaterThan<BigDecimal>(new BigDecimal(3))));
// Use the prime-generation facility of BigInteger:
List<BigInteger> lbi = new ArrayList<BigInteger>();
BigInteger bi = BigInteger.valueOf(11);
for (int i = 0; i < 11; i++) {
lbi.add(bi);
bi = bi.nextProbablePrime();
}
print(lbi);
BigInteger rbi = reduce(lbi, new BigIntegerAdder());
print(rbi);
// The sum of this list of primes is also prime:
print(rbi.isProbablePrime(5));
List<AtomicLong> lal =
Arrays.asList(
new AtomicLong(11), new AtomicLong(47), new AtomicLong(74), new AtomicLong(133));
AtomicLong ral = reduce(lal, new AtomicLongAdder());
print(ral);
print(transform(lbd, new BigDecimalUlp()));
}
public static void main(String[] args) {
BigInteger a = BigInteger.valueOf(1), // without OO
b = 2, // with OO
c1 = a.negate().add(b.multiply(b)).add(b.divide(a)), // without OO
c2 = -a + b * b + b / a; // with OO
if (c1.compareTo(c2) < 0 || c1.compareTo(c2) > 0)
System.out.println("impossible"); // without OO
if (c1 < c2 || c1 > c2) System.out.println("impossible"); // with OO
HashMap<String, String> map = new HashMap<>();
if (!map.containsKey("qwe")) map.put("qwe", "asd"); // without OO
if (map["qwe"] == null) map["qwe"] = "asd"; // with OO
}
public static void abcd(String str) {
BigInteger sum = BigInteger.ZERO;
StringBuffer n = new StringBuffer("");
for (int i = 0; i < str.length(); i++) {
BigInteger ab = BigInteger.valueOf(((int) str.charAt(i)) - 96);
sum = sum.add(div.pow(str.length() - i - 1).multiply(ab));
}
String s = sum.toString();
for (int i = 0; i < s.length(); i++) {
if (i % 3 == 0 && i != 0) n.insert(0, ",");
n.insert(0, s.charAt(s.length() - i - 1));
}
while (str.length() < 22) str = str + " ";
System.out.println(str + "" + n);
}
/** Test probable primes in the sieve and return successful candidates. */
BigInteger retrieve(BigInteger initValue, int certainty, java.util.Random random) {
// Examine the sieve one long at a time to find possible primes
int offset = 1;
for (int i = 0; i < bits.length; i++) {
long nextLong = ~bits[i];
for (int j = 0; j < 64; j++) {
if ((nextLong & 1) == 1) {
BigInteger candidate = initValue.add(BigInteger.valueOf(offset));
if (candidate.primeToCertainty(certainty, random)) return candidate;
}
nextLong >>>= 1;
offset += 2;
}
}
return null;
}
public static void main(String[] args) throws IOException {
Scanner scanner = new Scanner(new BufferedInputStream(System.in));
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
int n = 1;
while (scanner.hasNextInt()) {
int a = scanner.nextInt();
int b = scanner.nextInt();
if (a == 0) break;
BigInteger sum = BigInteger.ZERO;
BigInteger bb = BigInteger.valueOf(b);
for (int i = 0; i < a; i++) sum = sum.add(scanner.nextBigInteger());
System.out.println(
"Bill #" + n + " costs " + sum + ": each friend should pay " + sum.divide(bb) + "\n");
n++;
}
}
public void DP() {
for (int i = 0; i <= m; i++) {
for (int j = 0; j <= sz; j++) {
dp[i][j] = BigInteger.ZERO;
}
}
dp[0][0] = BigInteger.ONE;
for (int i = 0; i < m; i++) {
for (int j = 0; j < sz; j++)
if (dp[i][j].compareTo(BigInteger.valueOf(0)) == 1) {
for (int k = 0; k < CD; k++) {
if (flag[ch[j][k]] > 0 || flag[j] > 0) continue;
dp[i + 1][ch[j][k]] = dp[i + 1][ch[j][k]].add(dp[i][j]);
}
}
}
ans = BigInteger.ZERO;
for (int i = 0; i < sz; i++) ans = ans.add(dp[m][i]);
out.println(ans);
}
void run() {
int N = input.nextInt();
f = new BigInteger[max(N + 1, 5)];
f[1] = BigInteger.ZERO;
f[2] = BigInteger.valueOf(2);
f[3] = BigInteger.valueOf(4);
g = new BigInteger[max(N + 1, 5)];
g[1] = BigInteger.valueOf(2);
g[2] = BigInteger.valueOf(2);
g[3] = BigInteger.valueOf(8);
for (int i = 4; i <= N; ++i) {
g[i] =
f[i - 1].multiply(BigInteger.valueOf(2)).add(g[i - 1]).add(g[i - 2]).subtract(g[i - 3]);
f[i] = f[i - 1].add(g[i - 1]);
}
System.out.println(f[N]);
}
/**
* Utility functions for working with numbers This class is JDK 1.4 compatible.
*
* @author angel
* @version $Id$
* @since Jan 9, 2006
*/
public class NumberUtil {
// ~ Static fields/initializers ---------------------------------------------
private static final DecimalFormat floatFormatter;
private static final DecimalFormat doubleFormatter;
private static final BigInteger[] bigIntTenPow;
private static final BigInteger[] bigIntMinUnscaled;
private static final BigInteger[] bigIntMaxUnscaled;
// For JDK 1.4 compatibility
private static final BigInteger bigIntTen = BigInteger.valueOf(10);
public static final Byte MIN_BYTE = new Byte(Byte.MIN_VALUE);
public static final Byte MAX_BYTE = new Byte(Byte.MAX_VALUE);
public static final Integer MIN_INTEGER = new Integer(Integer.MIN_VALUE);
public static final Integer MAX_INTEGER = new Integer(Integer.MAX_VALUE);
public static final Short MIN_SHORT = new Short(Short.MIN_VALUE);
public static final Short MAX_SHORT = new Short(Short.MAX_VALUE);
public static final Long MIN_LONG = new Long(Long.MIN_VALUE);
public static final Long MAX_LONG = new Long(Long.MAX_VALUE);
public static final Float MIN_FLOAT = new Float(-Float.MAX_VALUE);
public static final Float MAX_FLOAT = new Float(Float.MAX_VALUE);
public static final Double MIN_DOUBLE = new Double(-Double.MAX_VALUE);
public static final Double MAX_DOUBLE = new Double(Double.MAX_VALUE);
public static final Integer INTEGER_ZERO = new Integer(0);
public static final Integer INTEGER_ONE = new Integer(1);
static {
// TODO: DecimalFormat uses ROUND_HALF_EVEN, not ROUND_HALF_UP
// Float: precision of 7 (6 digits after .)
floatFormatter = new DecimalFormat();
floatFormatter.applyPattern("0.######E0");
// Double: precision of 16 (15 digits after .)
doubleFormatter = new DecimalFormat();
doubleFormatter.applyPattern("0.###############E0");
bigIntTenPow = new BigInteger[20];
bigIntMinUnscaled = new BigInteger[20];
bigIntMaxUnscaled = new BigInteger[20];
for (int i = 0; i < bigIntTenPow.length; i++) {
bigIntTenPow[i] = bigIntTen.pow(i);
if (i < 19) {
bigIntMaxUnscaled[i] = bigIntTenPow[i].subtract(BigInteger.ONE);
bigIntMinUnscaled[i] = bigIntMaxUnscaled[i].negate();
} else {
bigIntMaxUnscaled[i] = BigInteger.valueOf(Long.MAX_VALUE);
bigIntMinUnscaled[i] = BigInteger.valueOf(Long.MIN_VALUE);
}
}
}
// ~ Methods ----------------------------------------------------------------
public static final BigInteger powTen(int exponent) {
if ((exponent >= 0) && (exponent < bigIntTenPow.length)) {
return bigIntTenPow[exponent];
} else {
return bigIntTen.pow(exponent);
}
}
public static final BigInteger getMaxUnscaled(int precision) {
return bigIntMaxUnscaled[precision];
}
public static final BigInteger getMinUnscaled(int precision) {
return bigIntMinUnscaled[precision];
}
public static final BigDecimal rescaleBigDecimal(BigDecimal bd, int scale) {
if (bd != null) {
bd = bd.setScale(scale, BigDecimal.ROUND_HALF_UP);
}
return bd;
}
public static final BigDecimal toBigDecimal(Number number, int scale) {
BigDecimal bd = toBigDecimal(number);
return rescaleBigDecimal(bd, scale);
}
public static final BigDecimal toBigDecimal(Number number) {
if (number == null) {
return null;
}
if (number instanceof BigDecimal) {
return (BigDecimal) number;
} else if ((number instanceof Double) || (number instanceof Float)) {
// For JDK 1.4 compatibility
return new BigDecimal(((Number) number).doubleValue());
// return BigDecimal.valueOf(((Number) number).doubleValue());
} else if (number instanceof BigInteger) {
return new BigDecimal((BigInteger) number);
} else {
return new BigDecimal(((Number) number).longValue());
}
}
/**
* @return whether a BigDecimal is a valid Farrago decimal. If a BigDecimal's unscaled value
* overflows a long, then it is not a valid Farrago decimal.
*/
public static boolean isValidDecimal(BigDecimal bd) {
BigInteger usv = bd.unscaledValue();
long usvl = usv.longValue();
return usv.equals(BigInteger.valueOf(usvl));
}
public static NumberFormat getApproxFormatter(boolean isFloat) {
return (isFloat) ? floatFormatter : doubleFormatter;
}
public static long round(double d) {
if (d < 0) {
return (long) (d - 0.5);
} else {
return (long) (d + 0.5);
}
}
public static Double add(Double a, Double b) {
if ((a == null) || (b == null)) {
return null;
}
// For JDK 1.4 compatibility
return new Double(a.doubleValue() + b.doubleValue());
// return Double.valueOf(a.doubleValue() + b.doubleValue());
}
public static Double divide(Double a, Double b) {
if ((a == null) || (b == null) || (b.doubleValue() == 0.0)) {
return null;
}
// For JDK 1.4 compatibility
return new Double(a.doubleValue() / b.doubleValue());
// return Double.valueOf(a.doubleValue() / b.doubleValue());
}
public static Double multiply(Double a, Double b) {
if ((a == null) || (b == null)) {
return null;
}
// For JDK 1.4 compatibility
return new Double(a.doubleValue() * b.doubleValue());
// return Double.valueOf(a.doubleValue() * b.doubleValue());
}
}
/**
* @return whether a BigDecimal is a valid Farrago decimal. If a BigDecimal's unscaled value
* overflows a long, then it is not a valid Farrago decimal.
*/
public static boolean isValidDecimal(BigDecimal bd) {
BigInteger usv = bd.unscaledValue();
long usvl = usv.longValue();
return usv.equals(BigInteger.valueOf(usvl));
}
public void testDeepLink() {
Session ssn = SessionManager.getSession();
DataObject[] users = new DataObject[4];
DataObject group = getSession().create(getModelName() + ".Group");
group.set("id", BigInteger.valueOf(users.length));
group.set("email", "*****@*****.**");
group.set("name", "SIPB");
group.save();
DataAssociation members = (DataAssociation) group.get("members");
for (int i = 0; i < users.length; i++) {
users[i] = ssn.create(getModelName() + ".User");
users[i].set("id", BigInteger.valueOf(i));
users[i].set("email", "*****@*****.**");
users[i].set("firstName", "foo");
users[i].set("lastNames", "bar");
users[i].save();
members.add(users[i]);
}
group.save();
DataObject[] images = new DataObject[users.length / 2];
for (int i = 0; i < images.length; i++) {
images[i] = ssn.create(getModelName() + ".Image");
images[i].set("id", BigInteger.valueOf(i));
byte[] bytes = "This is the image.".getBytes();
images[i].set("bytes", bytes);
images[i].save();
}
// create link between user i and image i/2 with caption i
for (int i = 0; i < users.length; i++) {
// set image
DataAssociation imageUsers = (DataAssociation) images[i / 2].get("users");
DataObject link = imageUsers.add(users[i]);
link.set("caption", String.valueOf(i));
link.save();
}
DataCollection dc = ssn.retrieve(getModelName() + ".Group");
dc.addEqualsFilter("members.image.link.caption", "0");
assertEquals(1, dc.size());
dc = ssn.retrieve(getModelName() + ".User");
dc.addPath("image.link.caption");
assertEquals(users.length, dc.size());
while (dc.next()) {
assertEquals(dc.get("id").toString(), dc.get("image.link.caption"));
}
dc = ssn.retrieve(getModelName() + ".User");
dc.addPath("image.id");
assertEquals(users.length, dc.size());
while (dc.next()) {
int id = ((BigInteger) dc.get("id")).intValue();
assertEquals(BigInteger.valueOf(id / 2), dc.get("image.id"));
}
DataCollection dcUp = ssn.retrieve(getModelName() + ".User");
DataCollection dcDown = ssn.retrieve(getModelName() + ".User");
dcUp.addOrder("image.link.caption asc");
dcDown.addOrder("image.link.caption desc");
dcUp.next();
dcDown.next();
assertEquals(BigInteger.valueOf(0), dcUp.get("id"));
assertEquals(BigInteger.valueOf(users.length - 1), dcDown.get("id"));
dcUp.close();
dcDown.close();
dcUp = ssn.retrieve(getModelName() + ".Image");
dcDown = ssn.retrieve(getModelName() + ".Image");
dcUp.addOrder("users.link.caption asc");
dcDown.addOrder("users.link.caption desc");
dcUp.next();
dcDown.next();
assertEquals(BigInteger.valueOf(0), dcUp.get("id"));
assertEquals(BigInteger.valueOf(images.length - 1), dcDown.get("id"));
dcUp.close();
dcDown.close();
dc = ssn.retrieve(getModelName() + ".Group");
dc.addFilter("members.image.id = 0");
assertEquals(2, dc.size());
dc = ssn.retrieve(getModelName() + ".Image");
dc.addFilter("users.id = 0 and users.link.caption = '1'");
assertEquals(0, dc.size());
dc = ssn.retrieve(getModelName() + ".Group");
dc.addPath("members.id");
dc.addFilter("members.image.id = 0 and members.image.link.caption = '1'");
assertTrue(dc.next());
assertEquals(BigInteger.valueOf(1), dc.get("members.id"));
assertFalse(dc.next());
}
