How to use

ZoneInfoDB$TzDataAndroid

in

libcore.util

private void readHeader() {
 // byte[12] tzdata_version  -- "tzdata2012f\0"
 // int index_offset
 // int data_offset
 // int zonetab_offset
 BufferIterator it = mappedFile.bigEndianIterator();
 byte[] tzdata_version = new byte[12];
 it.readByteArray(tzdata_version, 0, tzdata_version.length);
 String magic = new String(tzdata_version, 0, 6, StandardCharsets.US_ASCII);
 if (!magic.equals("tzdata") || tzdata_version[11] != 0) {
  throw new RuntimeException("bad tzdata magic: " + Arrays.toString(tzdata_version));
 }
 version = new String(tzdata_version, 6, 5, StandardCharsets.US_ASCII);
 int index_offset = it.readInt();
 int data_offset = it.readInt();
 int zonetab_offset = it.readInt();
 readIndex(it, index_offset, data_offset);
 readZoneTab(it, zonetab_offset, (int) mappedFile.size() - zonetab_offset);
}

private void readHeader() {
 // byte[12] tzdata_version  -- "tzdata2012f\0"
 // int index_offset
 // int data_offset
 // int zonetab_offset
 BufferIterator it = mappedFile.bigEndianIterator();
 byte[] tzdata_version = new byte[12];
 it.readByteArray(tzdata_version, 0, tzdata_version.length);
 String magic = new String(tzdata_version, 0, 6, StandardCharsets.US_ASCII);
 if (!magic.equals("tzdata") || tzdata_version[11] != 0) {
  throw new RuntimeException("bad tzdata magic: " + Arrays.toString(tzdata_version));
 }
 version = new String(tzdata_version, 6, 5, StandardCharsets.US_ASCII);
 int index_offset = it.readInt();
 int data_offset = it.readInt();
 int zonetab_offset = it.readInt();
 readIndex(it, index_offset, data_offset);
 readZoneTab(it, zonetab_offset, (int) mappedFile.size() - zonetab_offset);
}

private void readHeader() {
 // byte[12] tzdata_version  -- "tzdata2012f\0"
 // int index_offset
 // int data_offset
 // int zonetab_offset
 BufferIterator it = mappedFile.bigEndianIterator();
 byte[] tzdata_version = new byte[12];
 it.readByteArray(tzdata_version, 0, tzdata_version.length);
 String magic = new String(tzdata_version, 0, 6, StandardCharsets.US_ASCII);
 if (!magic.equals("tzdata") || tzdata_version[11] != 0) {
  throw new RuntimeException("bad tzdata magic: " + Arrays.toString(tzdata_version));
 }
 version = new String(tzdata_version, 6, 5, StandardCharsets.US_ASCII);
 int index_offset = it.readInt();
 int data_offset = it.readInt();
 int zonetab_offset = it.readInt();
 readIndex(it, index_offset, data_offset);
 readZoneTab(it, zonetab_offset, (int) mappedFile.size() - zonetab_offset);
}

private void readHeader() {
 // byte[12] tzdata_version  -- "tzdata2012f\0"
 // int index_offset
 // int data_offset
 // int zonetab_offset
 BufferIterator it = mappedFile.bigEndianIterator();
 byte[] tzdata_version = new byte[12];
 it.readByteArray(tzdata_version, 0, tzdata_version.length);
 String magic = new String(tzdata_version, 0, 6, StandardCharsets.US_ASCII);
 if (!magic.equals("tzdata") || tzdata_version[11] != 0) {
  throw new RuntimeException("bad tzdata magic: " + Arrays.toString(tzdata_version));
 }
 version = new String(tzdata_version, 6, 5, StandardCharsets.US_ASCII);
 int index_offset = it.readInt();
 int data_offset = it.readInt();
 int zonetab_offset = it.readInt();
 readIndex(it, index_offset, data_offset);
 readZoneTab(it, zonetab_offset, (int) mappedFile.size() - zonetab_offset);
}

private void readHeader() {
 // byte[12] tzdata_version  -- "tzdata2012f\0"
 // int index_offset
 // int data_offset
 // int zonetab_offset
 BufferIterator it = mappedFile.bigEndianIterator();
 byte[] tzdata_version = new byte[12];
 it.readByteArray(tzdata_version, 0, tzdata_version.length);
 String magic = new String(tzdata_version, 0, 6, StandardCharsets.US_ASCII);
 if (!magic.equals("tzdata") || tzdata_version[11] != 0) {
  throw new RuntimeException("bad tzdata magic: " + Arrays.toString(tzdata_version));
 }
 version = new String(tzdata_version, 6, 5, StandardCharsets.US_ASCII);
 int index_offset = it.readInt();
 int data_offset = it.readInt();
 int zonetab_offset = it.readInt();
 readIndex(it, index_offset, data_offset);
 readZoneTab(it, zonetab_offset, (int) mappedFile.size() - zonetab_offset);
}

private void readHeader() {
 // byte[12] tzdata_version  -- "tzdata2012f\0"
 // int index_offset
 // int data_offset
 // int zonetab_offset
 BufferIterator it = mappedFile.bigEndianIterator();
 byte[] tzdata_version = new byte[12];
 it.readByteArray(tzdata_version, 0, tzdata_version.length);
 String magic = new String(tzdata_version, 0, 6, StandardCharsets.US_ASCII);
 if (!magic.equals("tzdata") || tzdata_version[11] != 0) {
  throw new RuntimeException("bad tzdata magic: " + Arrays.toString(tzdata_version));
 }
 version = new String(tzdata_version, 6, 5, StandardCharsets.US_ASCII);
 int index_offset = it.readInt();
 int data_offset = it.readInt();
 int zonetab_offset = it.readInt();
 readIndex(it, index_offset, data_offset);
 readZoneTab(it, zonetab_offset, (int) mappedFile.size() - zonetab_offset);
}

private boolean loadData(String path) {
 try {
  mappedFile = MemoryMappedFile.mmapRO(path);
 } catch (ErrnoException errnoException) {
  return false;
 }
 try {
  readHeader();
  return true;
 } catch (Exception ex) {
  // Something's wrong with the file.
  // Log the problem and return false so we try the next choice.
  System.logE("tzdata file \"" + path + "\" was present but invalid!", ex);
  return false;
 }
}

private boolean loadData(String path) {
 try {
  mappedFile = MemoryMappedFile.mmapRO(path);
 } catch (ErrnoException errnoException) {
  return false;
 }
 try {
  readHeader();
  return true;
 } catch (Exception ex) {
  // Something's wrong with the file.
  // Log the problem and return false so we try the next choice.
  System.logE("tzdata file \"" + path + "\" was present but invalid!", ex);
  return false;
 }
}

private boolean loadData(String path) {
 try {
  mappedFile = MemoryMappedFile.mmapRO(path);
 } catch (ErrnoException errnoException) {
  return false;
 }
 try {
  readHeader();
  return true;
 } catch (Exception ex) {
  // Something's wrong with the file.
  // Log the problem and return false so we try the next choice.
  System.logE("tzdata file \"" + path + "\" was present but invalid!", ex);
  return false;
 }
}

public TzDataAndroid(String... paths) {
 for (String path : paths) {
  if (loadData(path)) {
   return;
  }
 }
 // We didn't find any usable tzdata on disk, so let's just hard-code knowledge of "GMT".
 // This is actually implemented in TimeZone itself, so if this is the only time zone
 // we report, we won't be asked any more questions.
 System.logE("Couldn't find any tzdata!");
 version = "missing";
 zoneTab = "# Emergency fallback data.\n";
 ids = new String[] { "GMT" };
 byteOffsets = rawUtcOffsets = new int[1];
}

public TzDataAndroid(String... paths) {
 for (String path : paths) {
  if (loadData(path)) {
   return;
  }
 }
 // We didn't find any usable tzdata on disk, so let's just hard-code knowledge of "GMT".
 // This is actually implemented in TimeZone itself, so if this is the only time zone
 // we report, we won't be asked any more questions.
 System.logE("Couldn't find any tzdata!");
 version = "missing";
 zoneTab = "# Emergency fallback data.\n";
 ids = new String[] { "GMT" };
 byteOffsets = rawUtcOffsets = new int[1];
}

private boolean loadData(String path) {
 try {
  mappedFile = MemoryMappedFile.mmapRO(path);
 } catch (ErrnoException errnoException) {
  return false;
 }
 try {
  readHeader();
  return true;
 } catch (Exception ex) {
  // Something's wrong with the file.
  // Log the problem and return false so we try the next choice.
  System.logE("tzdata file \"" + path + "\" was present but invalid!", ex);
  return false;
 }
}

private boolean loadData(String path) {
 try {
  mappedFile = MemoryMappedFile.mmapRO(path);
 } catch (ErrnoException errnoException) {
  return false;
 }
 try {
  readHeader();
  return true;
 } catch (Exception ex) {
  // Something's wrong with the file.
  // Log the problem and return false so we try the next choice.
  System.logE("tzdata file \"" + path + "\" was present but invalid!", ex);
  return false;
 }
}

public TzDataAndroid(String... paths) {
 for (String path : paths) {
  if (loadData(path)) {
   return;
  }
 }
 // We didn't find any usable tzdata on disk, so let's just hard-code knowledge of "GMT".
 // This is actually implemented in TimeZone itself, so if this is the only time zone
 // we report, we won't be asked any more questions.
 System.logE("Couldn't find any tzdata!");
 version = "missing";
 zoneTab = "# Emergency fallback data.\n";
 ids = new String[] { "GMT" };
 byteOffsets = rawUtcOffsets = new int[1];
}

private void readHeader() {
 // byte[12] tzdata_version  -- "tzdata2012f\0"
 // int index_offset
 // int data_offset
 // int zonetab_offset
 BufferIterator it = mappedFile.bigEndianIterator();
 byte[] tzdata_version = new byte[12];
 it.readByteArray(tzdata_version, 0, tzdata_version.length);
 String magic = new String(tzdata_version, 0, 6, StandardCharsets.US_ASCII);
 if (!magic.equals("tzdata") || tzdata_version[11] != 0) {
  throw new RuntimeException("bad tzdata magic: " + Arrays.toString(tzdata_version));
 }
 version = new String(tzdata_version, 6, 5, StandardCharsets.US_ASCII);
 int index_offset = it.readInt();
 int data_offset = it.readInt();
 int zonetab_offset = it.readInt();
 readIndex(it, index_offset, data_offset);
 readZoneTab(it, zonetab_offset, (int) mappedFile.size() - zonetab_offset);
}

public TzDataAndroid(String... paths) {
 for (String path : paths) {
  if (loadData(path)) {
   return;
  }
 }
 // We didn't find any usable tzdata on disk, so let's just hard-code knowledge of "GMT".
 // This is actually implemented in TimeZone itself, so if this is the only time zone
 // we report, we won't be asked any more questions.
 System.logE("Couldn't find any tzdata!");
 version = "missing";
 zoneTab = "# Emergency fallback data.\n";
 ids = new String[] { "GMT" };
 byteOffsets = rawUtcOffsets = new int[1];
}

public TzDataAndroid(String... paths) {
 for (String path : paths) {
  if (loadData(path)) {
   return;
  }
 }
 // We didn't find any usable tzdata on disk, so let's just hard-code knowledge of "GMT".
 // This is actually implemented in TimeZone itself, so if this is the only time zone
 // we report, we won't be asked any more questions.
 System.logE("Couldn't find any tzdata!");
 version = "missing";
 zoneTab = "# Emergency fallback data.\n";
 ids = new String[] { "GMT" };
 byteOffsets = rawUtcOffsets = new int[1];
}

private boolean loadData(String path) {
 try {
  mappedFile = MemoryMappedFile.mmapRO(path);
 } catch (ErrnoException errnoException) {
  return false;
 }
 try {
  readHeader();
  return true;
 } catch (Exception ex) {
  // Something's wrong with the file.
  // Log the problem and return false so we try the next choice.
  System.logE("tzdata file \"" + path + "\" was present but invalid!", ex);
  return false;
 }
}

public TzDataAndroid(String... paths) {
 for (String path : paths) {
  if (loadData(path)) {
   return;
  }
 }
 // We didn't find any usable tzdata on disk, so let's just hard-code knowledge of "GMT".
 // This is actually implemented in TimeZone itself, so if this is the only time zone
 // we report, we won't be asked any more questions.
 System.logE("Couldn't find any tzdata!");
 version = "missing";
 zoneTab = "# Emergency fallback data.\n";
 ids = new String[] { "GMT" };
 byteOffsets = rawUtcOffsets = new int[1];
}

public TzDataAndroid(String... paths) {
 for (String path : paths) {
  if (loadData(path)) {
   return;
  }
 }
 // We didn't find any usable tzdata on disk, so let's just hard-code knowledge of "GMT".
 // This is actually implemented in TimeZone itself, so if this is the only time zone
 // we report, we won't be asked any more questions.
 System.logE("Couldn't find any tzdata!");
 version = "missing";
 zoneTab = "# Emergency fallback data.\n";
 ids = new String[] { "GMT" };
 byteOffsets = rawUtcOffsets = new int[1];
}