[2355] Removed element type checking from StringParser::build. This broke

a unit test in DHCP4, and it appears we rely on being able to set a string
configuration value from any element type.

src/lib/dhcpsrv/dhcp_parsers.cc

@@ -173,18 +173,8 @@ StringParser::StringParser(const std::string& param_name,
 }
 
 void StringParser::build(ConstElementPtr value) {
-#if 0
     value_ = value->str();
     boost::erase_all(value_, "\"");
-#else
-    try {
-        value_ = value->stringValue();
-        boost::erase_all(value_, "\"");
-    } catch (const isc::data::TypeError &) {
-        isc_throw(BadValue, " Wrong value type for " << param_name_ 
-                  << " : build called with a non-boolean element.");
-    }
-#endif
 }
 
 void StringParser::commit() {

src/lib/dhcpsrv/tests/dhcp_parsers_unittest.cc

@@ -97,7 +97,7 @@ TEST_F(DhcpParserTest, booleanParserTest) {
 /// 
 /// Verifies that the parser:
 /// 1. Does not allow empty for storage.
-/// 2. Rejects a non-string element.
+/// 2. Builds with a nont string value.
 /// 3. Builds with a string value.
 /// 4. Updates storage upon commit.
 TEST_F(DhcpParserTest, stringParserTest) {
@@ -112,13 +112,13 @@ TEST_F(DhcpParserTest, stringParserTest) {
     StringStoragePtr storage(new StringStorage());
     StringParser parser(name, storage);
 
-    // Verify that parser with rejects a non-string element.
-    ElementPtr wrong_element = Element::create(9999);
-    EXPECT_THROW(parser.build(wrong_element), isc::BadValue);
+    // Verify that parser with accepts a non-string element.
+    ElementPtr element = Element::create(9999);
+    EXPECT_NO_THROW(parser.build(element));
 
     // Verify that parser will build with a string value.
     const std::string test_value = "test value";
-    ElementPtr element = Element::create(test_value);
+    element = Element::create(test_value);
     ASSERT_NO_THROW(parser.build(element));
 
     // Verify that commit updates storage.