protected long fixFrom(DateTimeZone tz, int standardOffset, long from) {
if (standardOffset != tz.getOffset(from)) { // NB: this must NOT be
// a call to getBasicOffset(), because that method may be
// overriden by the cached implementation(s) of this class.
do {
from = tz.previousTransition(from) + 1;
} while ((from != 0) && (standardOffset == tz.getOffset(from)));
} else {
from = tz.nextTransition(from);
}
return from;
}
private static RubyTime createTime(IRubyObject recv, IRubyObject[] args, boolean gmt) {
Ruby runtime = recv.getRuntime();
int len = ARG_SIZE;
Boolean isDst = null;
DateTimeZone dtz;
if (gmt) {
dtz = DateTimeZone.UTC;
} else if (args.length == 10 && args[9] instanceof RubyString) {
dtz = getTimeZone(runtime, ((RubyString) args[9]).toString());
} else {
dtz = getLocalTimeZone(runtime);
}
if (args.length == 10) {
if (args[8] instanceof RubyBoolean) {
isDst = ((RubyBoolean) args[8]).isTrue();
}
args =
new IRubyObject[] {
args[5], args[4], args[3], args[2], args[1], args[0], runtime.getNil()
};
} else {
// MRI accepts additional wday argument which appears to be ignored.
len = args.length;
if (len < ARG_SIZE) {
IRubyObject[] newArgs = new IRubyObject[ARG_SIZE];
System.arraycopy(args, 0, newArgs, 0, args.length);
for (int i = len; i < ARG_SIZE; i++) {
newArgs[i] = runtime.getNil();
}
args = newArgs;
len = ARG_SIZE;
}
}
if (args[0] instanceof RubyString) {
args[0] = RubyNumeric.str2inum(runtime, (RubyString) args[0], 10, false);
}
int year = (int) RubyNumeric.num2long(args[0]);
int month = 1;
if (len > 1) {
if (!args[1].isNil()) {
IRubyObject tmp = args[1].checkStringType();
if (!tmp.isNil()) {
String monthString = tmp.toString().toLowerCase();
Integer monthInt = MONTHS_MAP.get(monthString);
if (monthInt != null) {
month = monthInt;
} else {
try {
month = Integer.parseInt(monthString);
} catch (NumberFormatException nfExcptn) {
throw runtime.newArgumentError("Argument out of range.");
}
}
} else {
month = (int) RubyNumeric.num2long(args[1]);
}
}
if (1 > month || month > 12) {
throw runtime.newArgumentError("Argument out of range: for month: " + month);
}
}
int[] int_args = {1, 0, 0, 0, 0, 0};
for (int i = 0; int_args.length >= i + 2; i++) {
if (!args[i + 2].isNil()) {
if (!(args[i + 2] instanceof RubyNumeric)) {
args[i + 2] = args[i + 2].callMethod(runtime.getCurrentContext(), "to_i");
}
long value = RubyNumeric.num2long(args[i + 2]);
if (time_min[i] > value || value > time_max[i]) {
throw runtime.newArgumentError("argument out of range.");
}
int_args[i] = (int) value;
}
}
if (!runtime.is1_9()) {
if (0 <= year && year < 39) {
year += 2000;
} else if (69 <= year && year < 139) {
year += 1900;
}
}
DateTime dt;
// set up with min values and then add to allow rolling over
try {
dt = new DateTime(year, 1, 1, 0, 0, 0, 0, DateTimeZone.UTC);
dt =
dt.plusMonths(month - 1)
.plusDays(int_args[0] - 1)
.plusHours(int_args[1])
.plusMinutes(int_args[2])
.plusSeconds(int_args[3]);
if (runtime.is1_9() && !args[5].isNil()) {
double millis = RubyFloat.num2dbl(args[5]);
int int_millis = (int) (millis * 1000) % 1000;
dt = dt.plusMillis(int_millis);
}
dt = dt.withZoneRetainFields(dtz);
// we might need to perform a DST correction
if (isDst != null) {
// the instant at which we will ask dtz what the difference between DST and
// standard time is
long offsetCalculationInstant = dt.getMillis();
// if we might be moving this time from !DST -> DST, the offset is assumed
// to be the same as it was just before we last moved from DST -> !DST
if (dtz.isStandardOffset(dt.getMillis())) {
offsetCalculationInstant = dtz.previousTransition(offsetCalculationInstant);
}
int offset =
dtz.getStandardOffset(offsetCalculationInstant)
- dtz.getOffset(offsetCalculationInstant);
if (!isDst && !dtz.isStandardOffset(dt.getMillis())) {
dt = dt.minusMillis(offset);
}
if (isDst && dtz.isStandardOffset(dt.getMillis())) {
dt = dt.plusMillis(offset);
}
}
} catch (org.joda.time.IllegalFieldValueException e) {
throw runtime.newArgumentError("time out of range");
}
RubyTime time = new RubyTime(runtime, (RubyClass) recv, dt);
// Ignores usec if 8 args (for compatibility with parsedate) or if not supplied.
if (args.length != 8 && !args[6].isNil()) {
int usec = int_args[4] % 1000;
int msec = int_args[4] / 1000;
if (int_args[4] < 0) {
msec -= 1;
usec += 1000;
}
time.dt = dt.withMillis(dt.getMillis() + msec);
time.setUSec(usec);
}
time.callInit(IRubyObject.NULL_ARRAY, Block.NULL_BLOCK);
return time;
}
/** @return false if error. */
static boolean test(String id, DateTimeZone tz) {
if (!id.equals(tz.getID())) {
return true;
}
// Test to ensure that reported transitions are not duplicated.
long millis = ISOChronology.getInstanceUTC().year().set(0, 1850);
long end = ISOChronology.getInstanceUTC().year().set(0, 2050);
int offset = tz.getOffset(millis);
String key = tz.getNameKey(millis);
List<Long> transitions = new ArrayList<Long>();
while (true) {
long next = tz.nextTransition(millis);
if (next == millis || next > end) {
break;
}
millis = next;
int nextOffset = tz.getOffset(millis);
String nextKey = tz.getNameKey(millis);
if (offset == nextOffset && key.equals(nextKey)) {
System.out.println(
"*d* Error in "
+ tz.getID()
+ " "
+ new DateTime(millis, ISOChronology.getInstanceUTC()));
return false;
}
if (nextKey == null || (nextKey.length() < 3 && !"??".equals(nextKey))) {
System.out.println(
"*s* Error in "
+ tz.getID()
+ " "
+ new DateTime(millis, ISOChronology.getInstanceUTC())
+ ", nameKey="
+ nextKey);
return false;
}
transitions.add(Long.valueOf(millis));
offset = nextOffset;
key = nextKey;
}
// Now verify that reverse transitions match up.
millis = ISOChronology.getInstanceUTC().year().set(0, 2050);
end = ISOChronology.getInstanceUTC().year().set(0, 1850);
for (int i = transitions.size(); --i >= 0; ) {
long prev = tz.previousTransition(millis);
if (prev == millis || prev < end) {
break;
}
millis = prev;
long trans = transitions.get(i).longValue();
if (trans - 1 != millis) {
System.out.println(
"*r* Error in "
+ tz.getID()
+ " "
+ new DateTime(millis, ISOChronology.getInstanceUTC())
+ " != "
+ new DateTime(trans - 1, ISOChronology.getInstanceUTC()));
return false;
}
}
return true;
}