ARROW-4198: [Gandiva] Added support to cast timestamp

Added howard hinnant date project as a third party library. Used system timezone database for timezone information. Author: Antoine Pitrou <[email protected]> Author: shyam <[email protected]> Closes apache#3352 from shyambits2004/timestamp and squashes the following commits: 882a5cf <Antoine Pitrou> Tweak wording of vendored date library README 7f52480 <Antoine Pitrou> Small tweaks to license wording for the date library 9ee8eff <shyam> ARROW-4198 : Added support to cast timestamp
emilk · Jan 31, 2019 · 641c699 · 641c699
1 parent aa43784
commit 641c699
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Showing 23 changed files with 15,165 additions and 6,579 deletions.
diff --git a/LICENSE.txt b/LICENSE.txt
@@ -681,7 +681,11 @@ See the License for the specific language governing permissions and
 limitations under the License.
 
 --------------------------------------------------------------------------------
-The file cpp/src/arrow/vendored/date.h has the following license (MIT)
+The files cpp/src/arrow/vendored/datetime/date.h, cpp/src/arrow/vendored/datetime/tz.h,
+cpp/src/arrow/vendored/datetime/tz_private.h, cpp/src/arrow/vendored/datetime/ios.h,
+cpp/src/arrow/vendored/datetime/tz.cpp are adapted from
+Howard Hinnant's date library (https://github.com/HowardHinnant/date)
+It is licensed under MIT license.
 
 The MIT License (MIT)
 Copyright (c) 2015, 2016, 2017 Howard Hinnant

diff --git a/cpp/src/arrow/CMakeLists.txt b/cpp/src/arrow/CMakeLists.txt
@@ -115,6 +115,8 @@ set(ARROW_SRCS
   util/thread-pool.cc
   util/trie.cc
   util/utf8.cc
+
+  vendored/datetime/tz.cpp
 )
 
 if ("${COMPILER_FAMILY}" STREQUAL "clang")

diff --git a/cpp/src/arrow/util/parsing.h b/cpp/src/arrow/util/parsing.h
@@ -34,7 +34,7 @@
 #include "arrow/type.h"
 #include "arrow/type_traits.h"
 #include "arrow/util/checked_cast.h"
-#include "arrow/vendored/date.h"
+#include "arrow/vendored/datetime/date.h"
 
 namespace arrow {
 namespace internal {
@@ -375,15 +375,15 @@ class StringConverter<TimestampType> {
     // - "YYYY-MM-DD[ T]hh:mm:ss"
     // - "YYYY-MM-DD[ T]hh:mm:ssZ"
     // UTC is always assumed, and the DataType's timezone is ignored.
-    date::year_month_day ymd;
+    arrow::util::date::year_month_day ymd;
     if (ARROW_PREDICT_FALSE(length < 10)) {
       return false;
     }
     if (length == 10) {
       if (ARROW_PREDICT_FALSE(!ParseYYYY_MM_DD(s, &ymd))) {
         return false;
       }
-      return ConvertTimePoint(date::sys_days(ymd), out);
+      return ConvertTimePoint(arrow::util::date::sys_days(ymd), out);
     }
     if (ARROW_PREDICT_FALSE(s[10] != ' ') && ARROW_PREDICT_FALSE(s[10] != 'T')) {
       return false;
@@ -399,7 +399,7 @@ class StringConverter<TimestampType> {
       if (ARROW_PREDICT_FALSE(!ParseHH_MM_SS(s + 11, &seconds))) {
         return false;
       }
-      return ConvertTimePoint(date::sys_days(ymd) + seconds, out);
+      return ConvertTimePoint(arrow::util::date::sys_days(ymd) + seconds, out);
     }
     return false;
   }
@@ -428,7 +428,7 @@ class StringConverter<TimestampType> {
     return true;
   }
 
-  bool ParseYYYY_MM_DD(const char* s, date::year_month_day* out) {
+  bool ParseYYYY_MM_DD(const char* s, arrow::util::date::year_month_day* out) {
     uint16_t year;
     uint8_t month, day;
     if (ARROW_PREDICT_FALSE(s[4] != '-') || ARROW_PREDICT_FALSE(s[7] != '-')) {
@@ -443,7 +443,8 @@ class StringConverter<TimestampType> {
     if (ARROW_PREDICT_FALSE(!detail::ParseUnsigned(s + 8, 2, &day))) {
       return false;
     }
-    *out = {date::year{year}, date::month{month}, date::day{day}};
+    *out = {arrow::util::date::year{year}, arrow::util::date::month{month},
+            arrow::util::date::day{day}};
     return out->ok();
   }