SERVER-4217 updated detailed log format to include log severity and component name.

    Log severity is logged with a single capital letter.
        F - Severe
        E - Error
        W - Warning
        I - Info and Debug Level 0
        D - All debug levels > 0
    Component name is logged in upper-case padded with trailing spaces to fit within 8 characters.

1 files changed, 20 insertions, 0 deletions

diff --git a/src/mongo/logger/log_severity.cpp b/src/mongo/logger/log_severity.cpp
index ca60f7cdab9..576aab14cee 100644
--- a/src/mongo/logger/log_severity.cpp
+++ b/src/mongo/logger/log_severity.cpp
@@ -59,6 +59,26 @@ namespace {
         return StringData(unknownSeverityString, StringData::LiteralTag());
     }
 
+    char LogSeverity::toChar() const {
+        if (_severity > 0)
+            return 'D';
+        // 'S' might be confused with "Success"
+        // Return 'F' to imply Fatal instead.
+        if (*this == LogSeverity::Severe())
+            return 'F';
+        if (*this == LogSeverity::Error())
+            return 'E';
+        if (*this == LogSeverity::Warning())
+            return 'W';
+        if (*this == LogSeverity::Info())
+            return 'I';
+        if (*this == LogSeverity::Log())
+            return 'I';
+        // Should not reach here - returning 'U' for Unknown severity
+        // to be consistent with toStringData().
+        return 'U';
+    }
+
     std::ostream& operator<<(std::ostream& os, LogSeverity severity) {
         return os << severity.toStringData();
     }