re PR libgcj/17002 (java.util.TimeZone.getDefault() is broken)
libjava/
PR libgcj/17002
PR classpath/28550
* java/util/VMTimeZone.java (getDefaultTimeZoneId): To read
/etc/localtime, use ZoneInfo.readTZFile instead of
VMTimeZone.readtzFile. Get better timezone name for /etc/localtime,
either if it is a symlink or through /etc/sysconfig/clock.
(readSysconfigClockFile): New static method.
(readtzFile): Removed.
* java/lang/System.java: Add gnu.java.util.zoneinfo.dir to comments.
* posix.cc (_Jv_platform_initProperties): Set
gnu.java.util.zoneinfo.dir.
* sources.am (gnu_java_util_source_files): Add
classpath/gnu/java/util/ZoneInfo.java.
* Makefile.in: Regenerated.
* java/util/VMTimeZone.h: Regenerated.
* java/util/TimeZone.h: Regenerated.
* gnu/java/util/ZoneInfo.h: Generated.
libjava/classpath/
* java/util/Date.java (parse): Properly parse 09:01:02 as
hours/minutes/seconds, not as hours/minutes/year.
* java/util/SimpleTimeZone.java (SimpleTimeZone): Simplify
{start,end}TimeMode constructor by calling shorter constructor,
set {start,end}TimeMode fields after it returns.
(setStartRule): Don't adjust startTime into WALL_TIME. Set
startTimeMode to WALL_TIME.
(endStartRule): Similarly.
(getOffset): Handle properly millis + dstOffset overflowing into the
next day. Adjust startTime resp. endTime based on startTimeMode
resp. endTimeMode.
* java/util/TimeZone.java (zoneinfo_dir, availableIDs, aliases0): New
static fields.
(timezones): Remove synchronized keyword. Set zoneinfo_dir.
If non-null, set up aliases0 and don't put anything into
timezones0.
(defaultZone): Call getTimeZone instead of timezones().get.
(getDefaultTimeZone): Fix parsing of EST5 or EST5EDT6. Use
getTimeZoneInternal instead of timezones().get.
(parseTime): Parse correctly hour:minute.
(getTimeZoneInternal): New private method.
(getTimeZone): Do the custom ID checking first, canonicalize
ID for custom IDs as required by documentation. Call
getTimeZoneInternal to handle the rest.
(getAvailableIDs(int)): Add locking. Handle zoneinfo_dir != null.
(getAvailableIDs(File,String,ArrayList)): New private method.
(getAvailableIDs()): Add locking. Handle zoneinfo_dir != null.
* gnu/java/util/ZoneInfo.java: New file.
From-SVN: r122229
This commit is contained in:
Jakub Jelinek
committed by
Jakub Jelinek
Jakub Jelinek
parent
0c5c188f07
commit
b3502aa8d4
@@ -1,5 +1,5 @@
|
||||
/* System.java -- useful methods to interface with the system
|
||||
Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006
|
||||
Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
|
||||
Free Software Foundation, Inc.
|
||||
|
||||
This file is part of GNU Classpath.
|
||||
@@ -318,6 +318,7 @@ public final class System
|
||||
* <dt>gnu.java.io.encoding_scheme_alias.latin?</dt> <dd>8859_?</dd>
|
||||
* <dt>gnu.java.io.encoding_scheme_alias.UTF-8</dt> <dd>UTF8</dd>
|
||||
* <dt>gnu.java.io.encoding_scheme_alias.utf-8</dt> <dd>UTF8</dd>
|
||||
* <dt>gnu.java.util.zoneinfo.dir</dt> <dd>Root of zoneinfo tree</dd>
|
||||
* </dl>
|
||||
*
|
||||
* @return the system properties, will never be null
|
||||
|
||||
@@ -40,8 +40,14 @@ public:
|
||||
virtual jboolean useDaylightTime() = 0;
|
||||
virtual jboolean inDaylightTime(::java::util::Date *) = 0;
|
||||
virtual jint getDSTSavings();
|
||||
private:
|
||||
static ::java::util::TimeZone * getTimeZoneInternal(::java::lang::String *);
|
||||
public:
|
||||
static ::java::util::TimeZone * getTimeZone(::java::lang::String *);
|
||||
static JArray< ::java::lang::String * > * getAvailableIDs(jint);
|
||||
private:
|
||||
static jint getAvailableIDs(::java::io::File *, ::java::lang::String *, ::java::util::ArrayList *);
|
||||
public:
|
||||
static JArray< ::java::lang::String * > * getAvailableIDs();
|
||||
static ::java::util::TimeZone * getDefault();
|
||||
static void setDefault(::java::util::TimeZone *);
|
||||
@@ -53,6 +59,9 @@ private:
|
||||
::java::lang::String * __attribute__((aligned(__alignof__( ::java::lang::Object)))) ID;
|
||||
static ::java::util::TimeZone * defaultZone0;
|
||||
static const jlong serialVersionUID = 3581463369166924961LL;
|
||||
static ::java::lang::String * zoneinfo_dir;
|
||||
static JArray< ::java::lang::String * > * availableIDs;
|
||||
static ::java::util::HashMap * aliases0;
|
||||
static ::java::util::HashMap * timezones0;
|
||||
public:
|
||||
static ::java::lang::Class class$;
|
||||
|
||||
@@ -16,8 +16,7 @@ public: // actually package-private
|
||||
static ::java::util::TimeZone * getDefaultTimeZoneId();
|
||||
private:
|
||||
static ::java::lang::String * readTimeZoneFile(::java::lang::String *);
|
||||
static ::java::lang::String * readtzFile(::java::lang::String *);
|
||||
static void skipFully(::java::io::InputStream *, jlong);
|
||||
static ::java::lang::String * readSysconfigClockFile(::java::lang::String *);
|
||||
static ::java::lang::String * getSystemTimeZoneId();
|
||||
public:
|
||||
static ::java::lang::Class class$;
|
||||
|
||||
@@ -40,9 +40,9 @@ exception statement from your version. */
|
||||
package java.util;
|
||||
|
||||
import gnu.classpath.Configuration;
|
||||
import gnu.classpath.SystemProperties;
|
||||
import gnu.java.util.ZoneInfo;
|
||||
import java.util.TimeZone;
|
||||
import java.util.Calendar;
|
||||
import java.util.GregorianCalendar;
|
||||
|
||||
import java.io.*;
|
||||
|
||||
@@ -78,9 +78,10 @@ final class VMTimeZone
|
||||
* The reference implementation which is made for GNU/Posix like
|
||||
* systems calls <code>System.getenv("TZ")</code>,
|
||||
* <code>readTimeZoneFile("/etc/timezone")</code>,
|
||||
* <code>readtzFile("/etc/localtime")</code> and finally
|
||||
* <code>getSystemTimeZoneId()</code> till a supported TimeZone is
|
||||
* found through <code>TimeZone.getDefaultTimeZone(String)</code>.
|
||||
* <code>ZoneInfo.readTZFile((String)null, "/etc/localtime")</code>
|
||||
* and finally <code>getSystemTimeZoneId()</code> till a supported
|
||||
* TimeZone is found through
|
||||
* <code>TimeZone.getDefaultTimeZone(String)</code>.
|
||||
* If every method fails <code>null</code> is returned (which means
|
||||
* the TimeZone code will fall back on GMT as default time zone).
|
||||
* <p>
|
||||
@@ -111,9 +112,51 @@ final class VMTimeZone
|
||||
// Try to parse /etc/localtime
|
||||
if (zone == null)
|
||||
{
|
||||
tzid = readtzFile("/etc/localtime");
|
||||
if (tzid != null && !tzid.equals(""))
|
||||
zone = TimeZone.getDefaultTimeZone(tzid);
|
||||
zone = ZoneInfo.readTZFile((String) null, "/etc/localtime");
|
||||
if (zone != null)
|
||||
{
|
||||
// Try to find a more suitable ID for the /etc/localtime
|
||||
// timezone.
|
||||
// Sometimes /etc/localtime is a symlink to some
|
||||
// /usr/share/zoneinfo/ file.
|
||||
String id = null;
|
||||
try
|
||||
{
|
||||
id = new File("/etc/localtime").getCanonicalPath();
|
||||
if (id != null)
|
||||
{
|
||||
String zoneinfo_dir
|
||||
= SystemProperties.getProperty("gnu.java.util.zoneinfo.dir");
|
||||
if (zoneinfo_dir != null)
|
||||
zoneinfo_dir
|
||||
= new File(zoneinfo_dir
|
||||
+ File.separatorChar).getCanonicalPath();
|
||||
if (zoneinfo_dir != null && id.startsWith(zoneinfo_dir))
|
||||
{
|
||||
int pos = zoneinfo_dir.length();
|
||||
while (pos < id.length()
|
||||
&& id.charAt(pos) == File.separatorChar)
|
||||
pos++;
|
||||
if (pos < id.length())
|
||||
id = id.substring(pos);
|
||||
else
|
||||
id = null;
|
||||
}
|
||||
else
|
||||
id = null;
|
||||
}
|
||||
}
|
||||
catch (IOException ioe)
|
||||
{
|
||||
id = null;
|
||||
}
|
||||
|
||||
if (id == null)
|
||||
id = readSysconfigClockFile("/etc/sysconfig/clock");
|
||||
|
||||
if (id != null)
|
||||
zone.setID(id);
|
||||
}
|
||||
}
|
||||
|
||||
// Try some system specific way
|
||||
@@ -189,466 +232,47 @@ final class VMTimeZone
|
||||
}
|
||||
|
||||
/**
|
||||
* Tries to read a file as a "standard" tzfile and return a time
|
||||
* zone id string as expected by <code>getDefaultTimeZone(String)</code>.
|
||||
* If the file doesn't exist, an IOException occurs or it isn't a tzfile
|
||||
* that can be parsed null is returned.
|
||||
* Tries to read the time zone name from a file.
|
||||
* If the file cannot be read or an IOException occurs null is returned.
|
||||
* <p>
|
||||
* The tzfile structure (as also used by glibc) is described in the Olson
|
||||
* tz database archive as can be found at
|
||||
* <code>ftp://elsie.nci.nih.gov/pub/</code>.
|
||||
* <p>
|
||||
* At least the following platforms support the tzdata file format
|
||||
* and /etc/localtime (GNU/Linux, Darwin, Solaris and FreeBSD at
|
||||
* least). Some systems (like Darwin) don't start the file with the
|
||||
* required magic bytes 'TZif', this implementation can handle
|
||||
* that).
|
||||
* The /etc/sysconfig/clock file is not standard, but a lot of systems
|
||||
* have it. The file is included by shell scripts and the timezone
|
||||
* name is defined in ZONE variable.
|
||||
* This routine should grok it with or without quotes:
|
||||
* ZONE=America/New_York
|
||||
* or
|
||||
* ZONE="Europe/London"
|
||||
*/
|
||||
private static String readtzFile(String file)
|
||||
private static String readSysconfigClockFile(String file)
|
||||
{
|
||||
File f = new File(file);
|
||||
if (!f.exists())
|
||||
return null;
|
||||
|
||||
DataInputStream dis = null;
|
||||
BufferedReader br = null;
|
||||
try
|
||||
{
|
||||
FileInputStream fis = new FileInputStream(f);
|
||||
FileInputStream fis = new FileInputStream(file);
|
||||
BufferedInputStream bis = new BufferedInputStream(fis);
|
||||
dis = new DataInputStream(bis);
|
||||
br = new BufferedReader(new InputStreamReader(bis));
|
||||
|
||||
// Make sure we are reading a tzfile.
|
||||
byte[] tzif = new byte[5];
|
||||
dis.readFully(tzif);
|
||||
int tzif2 = 4;
|
||||
if (tzif[0] == 'T' && tzif[1] == 'Z'
|
||||
&& tzif[2] == 'i' && tzif[3] == 'f')
|
||||
for (String line = br.readLine(); line != null; line = br.readLine())
|
||||
{
|
||||
if (tzif[4] >= '2')
|
||||
tzif2 = 8;
|
||||
// Reserved bytes
|
||||
skipFully(dis, 16 - 1);
|
||||
}
|
||||
else
|
||||
// Darwin has tzdata files that don't start with the TZif marker
|
||||
skipFully(dis, 16 - 5);
|
||||
|
||||
String id = null;
|
||||
int ttisgmtcnt = dis.readInt();
|
||||
int ttisstdcnt = dis.readInt();
|
||||
int leapcnt = dis.readInt();
|
||||
int timecnt = dis.readInt();
|
||||
int typecnt = dis.readInt();
|
||||
int charcnt = dis.readInt();
|
||||
if (tzif2 == 8)
|
||||
{
|
||||
skipFully(dis, timecnt * (4 + 1) + typecnt * (4 + 1 + 1) + charcnt
|
||||
+ leapcnt * (4 + 4) + ttisgmtcnt + ttisstdcnt);
|
||||
|
||||
dis.readFully(tzif);
|
||||
if (tzif[0] != 'T' || tzif[1] != 'Z' || tzif[2] != 'i'
|
||||
|| tzif[3] != 'f' || tzif[4] < '2')
|
||||
line = line.trim();
|
||||
if (line.length() < 8 || !line.startsWith("ZONE="))
|
||||
continue;
|
||||
int posstart = 6;
|
||||
int posend;
|
||||
if (line.charAt(5) == '"')
|
||||
posend = line.indexOf('"', 6);
|
||||
else if (line.charAt(5) == '\'')
|
||||
posend = line.indexOf('\'', 6);
|
||||
else
|
||||
{
|
||||
posstart = 5;
|
||||
posend = line.length();
|
||||
}
|
||||
if (posend < 0)
|
||||
return null;
|
||||
|
||||
// Reserved bytes
|
||||
skipFully(dis, 16 - 1);
|
||||
ttisgmtcnt = dis.readInt();
|
||||
ttisstdcnt = dis.readInt();
|
||||
leapcnt = dis.readInt();
|
||||
timecnt = dis.readInt();
|
||||
typecnt = dis.readInt();
|
||||
charcnt = dis.readInt();
|
||||
return line.substring(posstart, posend);
|
||||
}
|
||||
if (typecnt > 0)
|
||||
{
|
||||
int seltimecnt = timecnt;
|
||||
if (seltimecnt > 16)
|
||||
seltimecnt = 16;
|
||||
|
||||
long[] times = new long[seltimecnt];
|
||||
int[] types = new int[seltimecnt];
|
||||
|
||||
// Transition times
|
||||
skipFully(dis, (timecnt - seltimecnt) * tzif2);
|
||||
|
||||
for (int i = 0; i < seltimecnt; i++)
|
||||
if (tzif2 == 8)
|
||||
times[i] = dis.readLong();
|
||||
else
|
||||
times[i] = (long) dis.readInt();
|
||||
|
||||
// Transition types
|
||||
skipFully(dis, timecnt - seltimecnt);
|
||||
for (int i = 0; i < seltimecnt; i++)
|
||||
{
|
||||
types[i] = dis.readByte();
|
||||
if (types[i] < 0)
|
||||
types[i] += 256;
|
||||
}
|
||||
|
||||
// Get std/dst_offset and dst/non-dst time zone names.
|
||||
int std_abbrind = -1;
|
||||
int dst_abbrind = -1;
|
||||
int std_offset = 0;
|
||||
int dst_offset = 0;
|
||||
int std_ind = -1;
|
||||
int dst_ind = -1;
|
||||
|
||||
int alternation = 0;
|
||||
if (seltimecnt >= 4 && types[0] != types[1]
|
||||
&& types[0] < typecnt && types[1] < typecnt)
|
||||
{
|
||||
// Verify only two types are involved
|
||||
// in the transitions and they alternate.
|
||||
alternation = 1;
|
||||
for (int i = 2; i < seltimecnt; i++)
|
||||
if (types[i] != types[i % 2])
|
||||
alternation = 0;
|
||||
}
|
||||
|
||||
// If a timezone previously used DST, but no longer does
|
||||
// (or no longer will in the near future, say 5 years),
|
||||
// then always pick only the std zone type corresponding
|
||||
// to latest applicable transition.
|
||||
if (seltimecnt > 0
|
||||
&& times[seltimecnt - 1]
|
||||
< System.currentTimeMillis() / 1000 + 5 * 365 * 86400)
|
||||
alternation = -1;
|
||||
|
||||
for (int i = 0; i < typecnt; i++)
|
||||
{
|
||||
// gmtoff
|
||||
int offset = dis.readInt();
|
||||
int dst = dis.readByte();
|
||||
int abbrind = dis.readByte();
|
||||
if (dst == 0)
|
||||
{
|
||||
if (alternation == 0
|
||||
|| (alternation == 1
|
||||
&& (i == types[0] || i == types[1]))
|
||||
|| (alternation == -1 && i == types[seltimecnt - 1]))
|
||||
{
|
||||
std_abbrind = abbrind;
|
||||
std_offset = offset * -1;
|
||||
std_ind = i;
|
||||
}
|
||||
}
|
||||
else if (alternation >= 0)
|
||||
{
|
||||
if (alternation == 0 || i == types[0] || i == types[1])
|
||||
{
|
||||
dst_abbrind = abbrind;
|
||||
dst_offset = offset * -1;
|
||||
dst_ind = i;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (std_abbrind >= 0)
|
||||
{
|
||||
byte[] names = new byte[charcnt];
|
||||
dis.readFully(names);
|
||||
int j = std_abbrind;
|
||||
while (j < charcnt && names[j] != 0)
|
||||
j++;
|
||||
|
||||
String zonename = new String(names, std_abbrind,
|
||||
j - std_abbrind, "ASCII");
|
||||
|
||||
String dst_zonename;
|
||||
if (dst_abbrind >= 0)
|
||||
{
|
||||
j = dst_abbrind;
|
||||
while (j < charcnt && names[j] != 0)
|
||||
j++;
|
||||
dst_zonename = new String(names, dst_abbrind,
|
||||
j - dst_abbrind, "ASCII");
|
||||
}
|
||||
else
|
||||
dst_zonename = "";
|
||||
|
||||
String[] change_spec = { null, null };
|
||||
if (dst_abbrind >= 0 && alternation > 0)
|
||||
{
|
||||
// Guess rules for the std->dst and dst->std transitions
|
||||
// from the transition times since Epoch.
|
||||
// tzdata actually uses only 3 forms of rules:
|
||||
// fixed date within a month, e.g. change on April, 5th
|
||||
// 1st weekday on or after Nth: change on Sun>=15 in April
|
||||
// last weekday in a month: change on lastSun in April
|
||||
GregorianCalendar cal
|
||||
= new GregorianCalendar (TimeZone.getTimeZone("GMT"));
|
||||
|
||||
int[] values = new int[2 * 11];
|
||||
int i;
|
||||
for (i = seltimecnt - 1; i >= 0; i--)
|
||||
{
|
||||
int base = (i % 2) * 11;
|
||||
int offset = types[i] == dst_ind ? std_offset : dst_offset;
|
||||
cal.setTimeInMillis((times[i] - offset) * 1000);
|
||||
if (i >= seltimecnt - 2)
|
||||
{
|
||||
values[base + 0] = cal.get(Calendar.YEAR);
|
||||
values[base + 1] = cal.get(Calendar.MONTH);
|
||||
values[base + 2] = cal.get(Calendar.DAY_OF_MONTH);
|
||||
values[base + 3]
|
||||
= cal.getActualMaximum(Calendar.DAY_OF_MONTH);
|
||||
values[base + 4] = cal.get(Calendar.DAY_OF_WEEK);
|
||||
values[base + 5] = cal.get(Calendar.HOUR_OF_DAY);
|
||||
values[base + 6] = cal.get(Calendar.MINUTE);
|
||||
values[base + 7] = cal.get(Calendar.SECOND);
|
||||
values[base + 8] = values[base + 2]; // Range start
|
||||
values[base + 9] = values[base + 2]; // Range end
|
||||
values[base + 10] = 0; // Determined type
|
||||
}
|
||||
else
|
||||
{
|
||||
int year = cal.get(Calendar.YEAR);
|
||||
int month = cal.get(Calendar.MONTH);
|
||||
int day_of_month = cal.get(Calendar.DAY_OF_MONTH);
|
||||
int month_days
|
||||
= cal.getActualMaximum(Calendar.DAY_OF_MONTH);
|
||||
int day_of_week = cal.get(Calendar.DAY_OF_WEEK);
|
||||
int hour = cal.get(Calendar.HOUR_OF_DAY);
|
||||
int minute = cal.get(Calendar.MINUTE);
|
||||
int second = cal.get(Calendar.SECOND);
|
||||
if (year != values[base + 0] - 1
|
||||
|| month != values[base + 1]
|
||||
|| hour != values[base + 5]
|
||||
|| minute != values[base + 6]
|
||||
|| second != values[base + 7])
|
||||
break;
|
||||
if (day_of_week == values[base + 4])
|
||||
{
|
||||
// Either a Sun>=8 or lastSun rule.
|
||||
if (day_of_month < values[base + 8])
|
||||
values[base + 8] = day_of_month;
|
||||
if (day_of_month > values[base + 9])
|
||||
values[base + 9] = day_of_month;
|
||||
if (values[base + 10] < 0)
|
||||
break;
|
||||
if (values[base + 10] == 0)
|
||||
{
|
||||
values[base + 10] = 1;
|
||||
// If day of month > 28, this is
|
||||
// certainly lastSun rule.
|
||||
if (values[base + 2] > 28)
|
||||
values[base + 2] = 3;
|
||||
// If day of month isn't in the last
|
||||
// week, it can't be lastSun rule.
|
||||
else if (values[base + 2]
|
||||
<= values[base + 3] - 7)
|
||||
values[base + 3] = 2;
|
||||
}
|
||||
if (values[base + 10] == 1)
|
||||
{
|
||||
// If day of month is > 28, this is
|
||||
// certainly lastSun rule.
|
||||
if (day_of_month > 28)
|
||||
values[base + 10] = 3;
|
||||
// If day of month isn't in the last
|
||||
// week, it can't be lastSun rule.
|
||||
else if (day_of_month <= month_days - 7)
|
||||
values[base + 10] = 2;
|
||||
}
|
||||
else if ((values[base + 10] == 2
|
||||
&& day_of_month > 28)
|
||||
|| (values[base + 10] == 3
|
||||
&& day_of_month
|
||||
<= month_days - 7))
|
||||
break;
|
||||
}
|
||||
else
|
||||
{
|
||||
// Must be fixed day in month rule.
|
||||
if (day_of_month != values[base + 2]
|
||||
|| values[base + 10] > 0)
|
||||
break;
|
||||
values[base + 4] = day_of_week;
|
||||
values[base + 10] = -1;
|
||||
}
|
||||
values[base + 0] -= 1;
|
||||
}
|
||||
}
|
||||
if (i < 0)
|
||||
{
|
||||
for (i = 0; i < 2; i++)
|
||||
{
|
||||
int base = 11 * i;
|
||||
if (values[base + 10] == 0)
|
||||
continue;
|
||||
if (values[base + 10] == -1)
|
||||
{
|
||||
int[] dayCount
|
||||
= { 0, 31, 59, 90, 120, 151,
|
||||
181, 212, 243, 273, 304, 334 };
|
||||
int d = dayCount[values[base + 1]
|
||||
- Calendar.JANUARY];
|
||||
d += values[base + 2];
|
||||
change_spec[i] = ",J" + Integer.toString(d);
|
||||
}
|
||||
else if (values[base + 10] == 2)
|
||||
{
|
||||
// If we haven't seen all days of the week,
|
||||
// we can't be sure what the rule really is.
|
||||
if (values[base + 8] + 6 != values[base + 9])
|
||||
continue;
|
||||
|
||||
// FIXME: Sun >= 5 is representable in
|
||||
// SimpleTimeZone, but not in POSIX TZ env
|
||||
// strings. Should we change readtzFile
|
||||
// to actually return a SimpleTimeZone
|
||||
// rather than POSIX TZ string?
|
||||
if ((values[base + 8] % 7) != 1)
|
||||
continue;
|
||||
|
||||
int d;
|
||||
d = values[base + 1] - Calendar.JANUARY + 1;
|
||||
change_spec[i] = ",M" + Integer.toString(d);
|
||||
d = (values[base + 8] + 6) / 7;
|
||||
change_spec[i] += "." + Integer.toString(d);
|
||||
d = values[base + 4] - Calendar.SUNDAY;
|
||||
change_spec[i] += "." + Integer.toString(d);
|
||||
}
|
||||
else
|
||||
{
|
||||
// If we don't know whether this is lastSun or
|
||||
// Sun >= 22 rule. That can be either because
|
||||
// there was insufficient number of
|
||||
// transitions, or February, where it is quite
|
||||
// probable we haven't seen any 29th dates.
|
||||
// For February, assume lastSun rule, otherwise
|
||||
// punt.
|
||||
if (values[base + 10] == 1
|
||||
&& values[base + 1] != Calendar.FEBRUARY)
|
||||
continue;
|
||||
|
||||
int d;
|
||||
d = values[base + 1] - Calendar.JANUARY + 1;
|
||||
change_spec[i] = ",M" + Integer.toString(d);
|
||||
d = values[base + 4] - Calendar.SUNDAY;
|
||||
change_spec[i] += ".5." + Integer.toString(d);
|
||||
}
|
||||
|
||||
// Don't add time specification if time is
|
||||
// 02:00:00.
|
||||
if (values[base + 5] != 2
|
||||
|| values[base + 6] != 0
|
||||
|| values[base + 7] != 0)
|
||||
{
|
||||
int d = values[base + 5];
|
||||
change_spec[i] += "/" + Integer.toString(d);
|
||||
if (values[base + 6] != 0
|
||||
|| values[base + 7] != 0)
|
||||
{
|
||||
d = values[base + 6];
|
||||
if (d < 10)
|
||||
change_spec[i]
|
||||
+= ":0" + Integer.toString(d);
|
||||
else
|
||||
change_spec[i]
|
||||
+= ":" + Integer.toString(d);
|
||||
d = values[base + 7];
|
||||
if (d >= 10)
|
||||
change_spec[i]
|
||||
+= ":" + Integer.toString(d);
|
||||
else if (d > 0)
|
||||
change_spec[i]
|
||||
+= ":0" + Integer.toString(d);
|
||||
}
|
||||
}
|
||||
}
|
||||
if (types[0] == std_ind)
|
||||
{
|
||||
String tmp = change_spec[0];
|
||||
change_spec[0] = change_spec[1];
|
||||
change_spec[1] = tmp;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// Only use gmt offset when necessary.
|
||||
// Also special case GMT+/- timezones.
|
||||
String offset_string, dst_offset_string = "";
|
||||
if (dst_abbrind < 0
|
||||
&& (std_offset == 0
|
||||
|| zonename.startsWith("GMT+")
|
||||
|| zonename.startsWith("GMT-")))
|
||||
offset_string = "";
|
||||
else
|
||||
{
|
||||
offset_string = Integer.toString(std_offset / 3600);
|
||||
int seconds = std_offset % 3600;
|
||||
if (seconds != 0)
|
||||
{
|
||||
if (seconds < 0)
|
||||
seconds *= -1;
|
||||
if (seconds < 600)
|
||||
offset_string
|
||||
+= ":0" + Integer.toString(seconds / 60);
|
||||
else
|
||||
offset_string
|
||||
+= ":" + Integer.toString(seconds / 60);
|
||||
seconds = seconds % 60;
|
||||
if (seconds >= 10)
|
||||
offset_string
|
||||
+= ":" + Integer.toString(seconds);
|
||||
else if (seconds > 0)
|
||||
offset_string
|
||||
+= ":0" + Integer.toString(seconds);
|
||||
}
|
||||
if (dst_abbrind >= 0
|
||||
&& dst_offset != std_offset - 3600)
|
||||
{
|
||||
dst_offset_string
|
||||
= Integer.toString(dst_offset / 3600);
|
||||
seconds = dst_offset % 3600;
|
||||
if (seconds != 0)
|
||||
{
|
||||
if (seconds < 0)
|
||||
seconds *= -1;
|
||||
if (seconds < 600)
|
||||
dst_offset_string
|
||||
+= ":0" + Integer.toString(seconds / 60);
|
||||
else
|
||||
dst_offset_string
|
||||
+= ":" + Integer.toString(seconds / 60);
|
||||
seconds = seconds % 60;
|
||||
if (seconds >= 10)
|
||||
dst_offset_string
|
||||
+= ":" + Integer.toString(seconds);
|
||||
else if (seconds > 0)
|
||||
dst_offset_string
|
||||
+= ":0" + Integer.toString(seconds);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (dst_abbrind < 0)
|
||||
id = zonename + offset_string;
|
||||
else if (change_spec[0] != null && change_spec[1] != null)
|
||||
id = zonename + offset_string + dst_zonename
|
||||
+ dst_offset_string + change_spec[0] + change_spec[1];
|
||||
}
|
||||
else if (tzif2 == 8)
|
||||
skipFully(dis, charcnt);
|
||||
}
|
||||
else if (tzif2 == 8)
|
||||
skipFully(dis, timecnt * (8 + 1) + typecnt * (4 + 1 + 1) + charcnt);
|
||||
|
||||
if (tzif2 == 8)
|
||||
{
|
||||
// Skip over the rest of 64-bit data
|
||||
skipFully(dis, leapcnt * (8 + 4) + ttisgmtcnt + ttisstdcnt);
|
||||
if (dis.readByte() == '\n')
|
||||
{
|
||||
String posixtz = dis.readLine();
|
||||
if (posixtz.length() > 0)
|
||||
id = posixtz;
|
||||
}
|
||||
}
|
||||
|
||||
return id;
|
||||
return null;
|
||||
}
|
||||
catch (IOException ioe)
|
||||
{
|
||||
@@ -659,31 +283,15 @@ final class VMTimeZone
|
||||
{
|
||||
try
|
||||
{
|
||||
if (dis != null)
|
||||
dis.close();
|
||||
if (br != null)
|
||||
br.close();
|
||||
}
|
||||
catch(IOException ioe)
|
||||
catch (IOException ioe)
|
||||
{
|
||||
// Error while close, nothing we can do.
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Skips the requested number of bytes in the given InputStream.
|
||||
* Throws EOFException if not enough bytes could be skipped.
|
||||
* Negative numbers of bytes to skip are ignored.
|
||||
*/
|
||||
private static void skipFully(InputStream is, long l) throws IOException
|
||||
{
|
||||
while (l > 0)
|
||||
{
|
||||
long k = is.skip(l);
|
||||
if (k <= 0)
|
||||
throw new EOFException();
|
||||
l -= k;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Tries to get the system time zone id through native code.
|
||||
|
||||
Reference in New Issue
Block a user