[trac3667] Complete logging work and add soem stats

Complete the current working on using the basic logging system
for messages from LFC

Add lease_stats to provide a class to gather statistics
about reading and writing leases to files.  Currently this
is used by the CSV file code and output by LFC.  The
information counted is: number of attempts, number of leases
and number of errors generated during reads and writes.

1 files changed, 12 insertions, 1 deletions

diff --git a/src/bin/lfc/lfc_controller.cc b/src/bin/lfc/lfc_controller.cc
index df175c0adc..ae8cc226eb 100644
--- a/src/bin/lfc/lfc_controller.cc
+++ b/src/bin/lfc/lfc_controller.cc
@@ -64,7 +64,7 @@ LFCController::launch(int argc, char* argv[], const bool test_mode) {
     // If we aren't running in test mode initialize the logging
     // system with the defaults.
     if (!test_mode)
-        initLogger(lfc_app_name_, WARN, 0, NULL, false);
+        initLogger(lfc_app_name_, INFO, 0, NULL, false);
 
     try {
         parseArgs(argc, argv);
@@ -345,6 +345,17 @@ LFCController::processLeases() const {
     LeaseFileType lf_output(getOutputFile());
     LeaseFileLoader::write<LeaseObjectType>(lf_output, storage);
 
+    // If desired log the stats
+    LOG_INFO(lfc_logger, LFC_READ_MESSAGE)
+      .arg(lf_prev.getReadLeases() + lf_copy.getReadLeases())
+      .arg(lf_prev.getReads() + lf_copy.getReads())
+      .arg(lf_prev.getReadErrs() + lf_copy.getReadErrs());
+
+    LOG_INFO(lfc_logger, LFC_WRITE_MESSAGE)
+      .arg(lf_output.getWriteLeases())
+      .arg(lf_output.getWrites())
+      .arg(lf_output.getWriteErrs());
+
     // Once we've finished the output file move it to the complete file
     if (rename(getOutputFile().c_str(), getFinishFile().c_str()) != 0) {
         isc_throw(RunTimeFail, "Unable to move output (" << output_file_