[#2101] addressed review comments

ChangeLog

@@ -1,3 +1,9 @@
+2315.	[func]		razvan
+	Kea can now load hook libraries specifying only the binary name.
+	It uses the default hook libraries installation path which is
+	provided in the config report as "Hooks directory".
+	(Gitlab #2101, #3579)
+
 2314.	[func]		tmark
 	Added three new parameters which may be used to
 	influence DNS TTL to kea-dhcp4 and kea-dhcp6:

doc/sphinx/arm/hooks.rst

@@ -213,8 +213,10 @@ configuration would be:
    because the parameters specified for the library (or the files those
    parameters point to) may have changed.
 
-Since Kea-2.7.5, the server is able to load hooks specified only by name, if
-they reside in the default install location (the path is OS specific).
+Since Kea-2.7.6, the server is able to load hook libraries specifying only the binary name,
+if they reside in the default installation directory (the path is OS specific).
+The default hook libraries installation path is provided in the config report as
+"Hooks directory".
 
 ::
 

src/lib/hooks/hooks_parser.h

@@ -58,8 +58,8 @@ class HooksLibrariesParser : public isc::data::SimpleParser {
     /// @param value pointer to the content to be parsed
     void parse(HooksConfig& libraries, isc::data::ConstElementPtr value);
 
-    /// @brief The default installation path for hooks, used to generate full
-    /// path if only the hook name is provided.
+    /// @brief The default installation path for hook libraries, used to generate
+    /// full path if only the hook library binary name is provided.
     static std::string default_hooks_path_;
 };
 

src/lib/process/cfgrpt/tests/config_report_unittests.cc

@@ -27,5 +27,6 @@ TEST(ConfigReportTest, getConfigReport) {
     ASSERT_FALSE(cfgReport.empty());
     EXPECT_NE(std::string::npos, cfgReport.find(VERSION));
     EXPECT_NE(std::string::npos, cfgReport.find(EXTENDED_VERSION));
-    EXPECT_NE(std::string::npos, cfgReport.find(HooksLibrariesParser::default_hooks_path_));
+    EXPECT_NE(std::string::npos, cfgReport.find(std::string("Hooks directory:   ") +
+                                                HooksLibrariesParser::default_hooks_path_));
 }