ENH: add exception handling in ReadFormattedDate

Modules/Core/Metadata/src/otbDateTime.cxx

@@ -20,6 +20,7 @@
 
 #include "otbDateTime.h"
 #include "date.h"
+#include "otbMissingMetadataException.h"
 
 namespace otb
 {
@@ -29,8 +30,21 @@ namespace MetaData
 TimePoint ReadFormattedDate(const std::string & dateStr, const std::string & format)
 {
   std::istringstream is(dateStr);
+  is.exceptions(std::istringstream::failbit | std::istringstream::badbit);
   TimePoint tp;
-  tp.Read(is, format.c_str());
+  
+  try
+  {
+    tp.Read(is, format.c_str());
+  }
+  catch (const std::istringstream::failure &)
+  {
+    otbGenericExceptionMacro(otb::MissingMetadataException,
+            << "Cannot parse the input date "
+            << dateStr
+            << " with input format "
+            << format);
+  }
   return tp;
 }
 

Modules/Core/Metadata/test/otbDateTest.cxx

@@ -31,6 +31,8 @@
 #endif
 
 #include "otbDateTime.h"
+#include "otbMissingMetadataException.h"
+
 
 BOOST_AUTO_TEST_CASE(Duration)
 {
@@ -61,6 +63,22 @@ BOOST_AUTO_TEST_CASE(TimePoint)
   BOOST_TEST(date1 - date2 == otb::MetaData::Duration::Seconds(86400));
   BOOST_TEST(date1 + otb::MetaData::Duration::Seconds(0.1) == 
     otb::MetaData::ReadFormattedDate("2021-06-22T00:01:04.52578987"));
+
+  // Test Parsing with a different format
+  otb::MetaData::ReadFormattedDate("2021-06-22 00:01:04.42578987", "%Y-%m-%d %H:%M:%S");
+  
+
+  // Test some invalid cases
+  BOOST_REQUIRE_THROW(otb::MetaData::ReadFormattedDate("2021-06-21 00:01:04.42578987"),
+                      otb::MissingMetadataException);
+
+  BOOST_REQUIRE_THROW(otb::MetaData::ReadFormattedDate("2021-06-21"),
+                      otb::MissingMetadataException);
+
+  BOOST_REQUIRE_THROW(otb::MetaData::ReadFormattedDate("2021-6-21 00:1:4.42578987"),
+                      otb::MissingMetadataException);
+
+
 }
 
 BOOST_AUTO_TEST_CASE(TimePointPrecision)