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:
parent
0c5c188f07
commit
b3502aa8d4
20 changed files with 1702 additions and 607 deletions
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@ -40,8 +40,14 @@ public:
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virtual jboolean useDaylightTime() = 0;
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virtual jboolean inDaylightTime(::java::util::Date *) = 0;
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virtual jint getDSTSavings();
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private:
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static ::java::util::TimeZone * getTimeZoneInternal(::java::lang::String *);
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public:
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static ::java::util::TimeZone * getTimeZone(::java::lang::String *);
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static JArray< ::java::lang::String * > * getAvailableIDs(jint);
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private:
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static jint getAvailableIDs(::java::io::File *, ::java::lang::String *, ::java::util::ArrayList *);
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public:
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static JArray< ::java::lang::String * > * getAvailableIDs();
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static ::java::util::TimeZone * getDefault();
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static void setDefault(::java::util::TimeZone *);
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@ -53,6 +59,9 @@ private:
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::java::lang::String * __attribute__((aligned(__alignof__( ::java::lang::Object)))) ID;
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static ::java::util::TimeZone * defaultZone0;
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static const jlong serialVersionUID = 3581463369166924961LL;
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static ::java::lang::String * zoneinfo_dir;
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static JArray< ::java::lang::String * > * availableIDs;
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static ::java::util::HashMap * aliases0;
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static ::java::util::HashMap * timezones0;
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public:
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static ::java::lang::Class class$;
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@ -16,8 +16,7 @@ public: // actually package-private
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static ::java::util::TimeZone * getDefaultTimeZoneId();
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private:
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static ::java::lang::String * readTimeZoneFile(::java::lang::String *);
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static ::java::lang::String * readtzFile(::java::lang::String *);
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static void skipFully(::java::io::InputStream *, jlong);
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static ::java::lang::String * readSysconfigClockFile(::java::lang::String *);
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static ::java::lang::String * getSystemTimeZoneId();
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public:
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static ::java::lang::Class class$;
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@ -40,9 +40,9 @@ exception statement from your version. */
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package java.util;
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import gnu.classpath.Configuration;
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import gnu.classpath.SystemProperties;
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import gnu.java.util.ZoneInfo;
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import java.util.TimeZone;
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import java.util.Calendar;
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import java.util.GregorianCalendar;
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import java.io.*;
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@ -78,9 +78,10 @@ final class VMTimeZone
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* The reference implementation which is made for GNU/Posix like
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* systems calls <code>System.getenv("TZ")</code>,
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* <code>readTimeZoneFile("/etc/timezone")</code>,
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* <code>readtzFile("/etc/localtime")</code> and finally
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* <code>getSystemTimeZoneId()</code> till a supported TimeZone is
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* found through <code>TimeZone.getDefaultTimeZone(String)</code>.
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* <code>ZoneInfo.readTZFile((String)null, "/etc/localtime")</code>
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* and finally <code>getSystemTimeZoneId()</code> till a supported
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* TimeZone is found through
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* <code>TimeZone.getDefaultTimeZone(String)</code>.
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* If every method fails <code>null</code> is returned (which means
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* the TimeZone code will fall back on GMT as default time zone).
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* <p>
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@ -111,9 +112,51 @@ final class VMTimeZone
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// Try to parse /etc/localtime
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if (zone == null)
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{
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tzid = readtzFile("/etc/localtime");
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if (tzid != null && !tzid.equals(""))
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zone = TimeZone.getDefaultTimeZone(tzid);
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zone = ZoneInfo.readTZFile((String) null, "/etc/localtime");
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if (zone != null)
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{
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// Try to find a more suitable ID for the /etc/localtime
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// timezone.
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// Sometimes /etc/localtime is a symlink to some
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// /usr/share/zoneinfo/ file.
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String id = null;
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try
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{
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id = new File("/etc/localtime").getCanonicalPath();
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if (id != null)
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{
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String zoneinfo_dir
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= SystemProperties.getProperty("gnu.java.util.zoneinfo.dir");
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if (zoneinfo_dir != null)
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zoneinfo_dir
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= new File(zoneinfo_dir
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+ File.separatorChar).getCanonicalPath();
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if (zoneinfo_dir != null && id.startsWith(zoneinfo_dir))
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{
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int pos = zoneinfo_dir.length();
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while (pos < id.length()
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&& id.charAt(pos) == File.separatorChar)
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pos++;
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if (pos < id.length())
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id = id.substring(pos);
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else
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id = null;
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}
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else
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id = null;
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}
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}
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catch (IOException ioe)
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{
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id = null;
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}
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if (id == null)
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id = readSysconfigClockFile("/etc/sysconfig/clock");
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if (id != null)
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zone.setID(id);
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}
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}
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// Try some system specific way
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@ -189,466 +232,47 @@ final class VMTimeZone
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}
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/**
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* Tries to read a file as a "standard" tzfile and return a time
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* zone id string as expected by <code>getDefaultTimeZone(String)</code>.
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* If the file doesn't exist, an IOException occurs or it isn't a tzfile
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* that can be parsed null is returned.
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* Tries to read the time zone name from a file.
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* If the file cannot be read or an IOException occurs null is returned.
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* <p>
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* The tzfile structure (as also used by glibc) is described in the Olson
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* tz database archive as can be found at
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* <code>ftp://elsie.nci.nih.gov/pub/</code>.
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* <p>
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* At least the following platforms support the tzdata file format
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* and /etc/localtime (GNU/Linux, Darwin, Solaris and FreeBSD at
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* least). Some systems (like Darwin) don't start the file with the
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* required magic bytes 'TZif', this implementation can handle
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* that).
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* The /etc/sysconfig/clock file is not standard, but a lot of systems
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* have it. The file is included by shell scripts and the timezone
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* name is defined in ZONE variable.
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* This routine should grok it with or without quotes:
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* ZONE=America/New_York
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* or
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* ZONE="Europe/London"
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*/
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private static String readtzFile(String file)
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private static String readSysconfigClockFile(String file)
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{
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File f = new File(file);
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if (!f.exists())
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return null;
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DataInputStream dis = null;
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BufferedReader br = null;
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try
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{
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FileInputStream fis = new FileInputStream(f);
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FileInputStream fis = new FileInputStream(file);
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BufferedInputStream bis = new BufferedInputStream(fis);
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dis = new DataInputStream(bis);
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br = new BufferedReader(new InputStreamReader(bis));
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// Make sure we are reading a tzfile.
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byte[] tzif = new byte[5];
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dis.readFully(tzif);
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int tzif2 = 4;
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if (tzif[0] == 'T' && tzif[1] == 'Z'
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&& tzif[2] == 'i' && tzif[3] == 'f')
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for (String line = br.readLine(); line != null; line = br.readLine())
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{
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if (tzif[4] >= '2')
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tzif2 = 8;
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// Reserved bytes
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skipFully(dis, 16 - 1);
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}
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else
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// Darwin has tzdata files that don't start with the TZif marker
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skipFully(dis, 16 - 5);
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String id = null;
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int ttisgmtcnt = dis.readInt();
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int ttisstdcnt = dis.readInt();
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int leapcnt = dis.readInt();
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int timecnt = dis.readInt();
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int typecnt = dis.readInt();
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int charcnt = dis.readInt();
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if (tzif2 == 8)
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{
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skipFully(dis, timecnt * (4 + 1) + typecnt * (4 + 1 + 1) + charcnt
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+ leapcnt * (4 + 4) + ttisgmtcnt + ttisstdcnt);
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dis.readFully(tzif);
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if (tzif[0] != 'T' || tzif[1] != 'Z' || tzif[2] != 'i'
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|| tzif[3] != 'f' || tzif[4] < '2')
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line = line.trim();
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if (line.length() < 8 || !line.startsWith("ZONE="))
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continue;
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int posstart = 6;
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int posend;
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if (line.charAt(5) == '"')
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posend = line.indexOf('"', 6);
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else if (line.charAt(5) == '\'')
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posend = line.indexOf('\'', 6);
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else
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{
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posstart = 5;
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posend = line.length();
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}
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if (posend < 0)
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return null;
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// Reserved bytes
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skipFully(dis, 16 - 1);
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ttisgmtcnt = dis.readInt();
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ttisstdcnt = dis.readInt();
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leapcnt = dis.readInt();
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timecnt = dis.readInt();
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typecnt = dis.readInt();
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charcnt = dis.readInt();
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return line.substring(posstart, posend);
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}
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if (typecnt > 0)
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{
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int seltimecnt = timecnt;
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if (seltimecnt > 16)
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seltimecnt = 16;
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long[] times = new long[seltimecnt];
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int[] types = new int[seltimecnt];
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// Transition times
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skipFully(dis, (timecnt - seltimecnt) * tzif2);
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for (int i = 0; i < seltimecnt; i++)
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if (tzif2 == 8)
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times[i] = dis.readLong();
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else
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times[i] = (long) dis.readInt();
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// Transition types
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skipFully(dis, timecnt - seltimecnt);
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for (int i = 0; i < seltimecnt; i++)
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{
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types[i] = dis.readByte();
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if (types[i] < 0)
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types[i] += 256;
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}
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// Get std/dst_offset and dst/non-dst time zone names.
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int std_abbrind = -1;
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int dst_abbrind = -1;
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int std_offset = 0;
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int dst_offset = 0;
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int std_ind = -1;
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int dst_ind = -1;
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int alternation = 0;
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if (seltimecnt >= 4 && types[0] != types[1]
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&& types[0] < typecnt && types[1] < typecnt)
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{
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// Verify only two types are involved
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// in the transitions and they alternate.
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alternation = 1;
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for (int i = 2; i < seltimecnt; i++)
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if (types[i] != types[i % 2])
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alternation = 0;
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}
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// If a timezone previously used DST, but no longer does
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// (or no longer will in the near future, say 5 years),
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// then always pick only the std zone type corresponding
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// to latest applicable transition.
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if (seltimecnt > 0
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&& times[seltimecnt - 1]
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< System.currentTimeMillis() / 1000 + 5 * 365 * 86400)
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alternation = -1;
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for (int i = 0; i < typecnt; i++)
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{
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// gmtoff
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int offset = dis.readInt();
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int dst = dis.readByte();
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int abbrind = dis.readByte();
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if (dst == 0)
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{
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if (alternation == 0
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|| (alternation == 1
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&& (i == types[0] || i == types[1]))
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|| (alternation == -1 && i == types[seltimecnt - 1]))
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{
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std_abbrind = abbrind;
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std_offset = offset * -1;
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std_ind = i;
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}
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}
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else if (alternation >= 0)
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{
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if (alternation == 0 || i == types[0] || i == types[1])
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{
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dst_abbrind = abbrind;
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dst_offset = offset * -1;
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dst_ind = i;
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}
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}
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}
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if (std_abbrind >= 0)
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{
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byte[] names = new byte[charcnt];
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dis.readFully(names);
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int j = std_abbrind;
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while (j < charcnt && names[j] != 0)
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j++;
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String zonename = new String(names, std_abbrind,
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j - std_abbrind, "ASCII");
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String dst_zonename;
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if (dst_abbrind >= 0)
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{
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j = dst_abbrind;
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while (j < charcnt && names[j] != 0)
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j++;
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dst_zonename = new String(names, dst_abbrind,
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j - dst_abbrind, "ASCII");
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}
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else
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dst_zonename = "";
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String[] change_spec = { null, null };
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if (dst_abbrind >= 0 && alternation > 0)
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{
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// Guess rules for the std->dst and dst->std transitions
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// from the transition times since Epoch.
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// tzdata actually uses only 3 forms of rules:
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// fixed date within a month, e.g. change on April, 5th
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// 1st weekday on or after Nth: change on Sun>=15 in April
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// last weekday in a month: change on lastSun in April
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GregorianCalendar cal
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= new GregorianCalendar (TimeZone.getTimeZone("GMT"));
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int[] values = new int[2 * 11];
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int i;
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for (i = seltimecnt - 1; i >= 0; i--)
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{
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int base = (i % 2) * 11;
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int offset = types[i] == dst_ind ? std_offset : dst_offset;
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cal.setTimeInMillis((times[i] - offset) * 1000);
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if (i >= seltimecnt - 2)
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{
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values[base + 0] = cal.get(Calendar.YEAR);
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values[base + 1] = cal.get(Calendar.MONTH);
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values[base + 2] = cal.get(Calendar.DAY_OF_MONTH);
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values[base + 3]
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= cal.getActualMaximum(Calendar.DAY_OF_MONTH);
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values[base + 4] = cal.get(Calendar.DAY_OF_WEEK);
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values[base + 5] = cal.get(Calendar.HOUR_OF_DAY);
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values[base + 6] = cal.get(Calendar.MINUTE);
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values[base + 7] = cal.get(Calendar.SECOND);
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values[base + 8] = values[base + 2]; // Range start
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values[base + 9] = values[base + 2]; // Range end
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values[base + 10] = 0; // Determined type
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}
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else
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{
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int year = cal.get(Calendar.YEAR);
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int month = cal.get(Calendar.MONTH);
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int day_of_month = cal.get(Calendar.DAY_OF_MONTH);
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int month_days
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= cal.getActualMaximum(Calendar.DAY_OF_MONTH);
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int day_of_week = cal.get(Calendar.DAY_OF_WEEK);
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int hour = cal.get(Calendar.HOUR_OF_DAY);
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int minute = cal.get(Calendar.MINUTE);
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int second = cal.get(Calendar.SECOND);
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if (year != values[base + 0] - 1
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|| month != values[base + 1]
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|| hour != values[base + 5]
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|| minute != values[base + 6]
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|| second != values[base + 7])
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break;
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if (day_of_week == values[base + 4])
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{
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// Either a Sun>=8 or lastSun rule.
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if (day_of_month < values[base + 8])
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values[base + 8] = day_of_month;
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if (day_of_month > values[base + 9])
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values[base + 9] = day_of_month;
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if (values[base + 10] < 0)
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break;
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if (values[base + 10] == 0)
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{
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values[base + 10] = 1;
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// If day of month > 28, this is
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// certainly lastSun rule.
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if (values[base + 2] > 28)
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values[base + 2] = 3;
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// If day of month isn't in the last
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// week, it can't be lastSun rule.
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else if (values[base + 2]
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<= values[base + 3] - 7)
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values[base + 3] = 2;
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}
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if (values[base + 10] == 1)
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{
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// If day of month is > 28, this is
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// certainly lastSun rule.
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if (day_of_month > 28)
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values[base + 10] = 3;
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// If day of month isn't in the last
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// week, it can't be lastSun rule.
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else if (day_of_month <= month_days - 7)
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values[base + 10] = 2;
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}
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else if ((values[base + 10] == 2
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&& day_of_month > 28)
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|| (values[base + 10] == 3
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&& 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.
|
||||
|
|
Loading…
Add table
Add a link
Reference in a new issue