[2098] supported getName()

src/lib/datasrc/memory/tests/treenode_rrset_unittest.cc

@@ -89,11 +89,14 @@ TEST_F(TreeNodeRRsetTest, create) {
     const TreeNodeRRset rrset1(RRClass::IN(), www_node_, a_rdataset_, true);
     EXPECT_EQ(RRClass::IN(), rrset1.getClass());
     EXPECT_EQ(RRType::A(), rrset1.getType());
+    EXPECT_EQ(www_name_, rrset1.getName());
     EXPECT_EQ(1, rrset1.getRdataCount());
     EXPECT_EQ(1, rrset1.getRRsigDataCount());
 
     const TreeNodeRRset rrset2(RRClass::IN(), www_node_, a_rdataset_, false);
     EXPECT_EQ(RRClass::IN(), rrset2.getClass());
+    EXPECT_EQ(RRType::A(), rrset2.getType());
+    EXPECT_EQ(www_name_, rrset2.getName());
     EXPECT_EQ(1, rrset2.getRdataCount());
     EXPECT_EQ(0, rrset2.getRRsigDataCount());
 }

src/lib/datasrc/memory/treenode_rrset.cc

@@ -41,7 +41,15 @@ namespace memory {
 
 const Name&
 TreeNodeRRset::getName() const {
-    isc_throw(Unexpected, "unexpected method called on TreeNodeRRset");
+    if (name_ == NULL) {
+        uint8_t labels_buf[LabelSequence::MAX_SERIALIZED_LENGTH];
+        const LabelSequence node_labels = node_->getAbsoluteLabels(labels_buf);
+        size_t data_len;
+        const uint8_t* data = node_labels.getData(&data_len);
+        util::InputBuffer buffer(data, data_len);
+        name_ = new Name(buffer);
+    }
+    return (*name_);
 }
 
 const RRTTL&

src/lib/datasrc/memory/treenode_rrset.h

@@ -61,10 +61,12 @@ public:
                   const RdataSet* rdataset, bool dnssec_ok) :
         node_(node), rdataset_(rdataset),
         rrsig_count_(rdataset_->getSigRdataCount()), rrclass_(rrclass),
-        dnssec_ok_(dnssec_ok)
+        dnssec_ok_(dnssec_ok), name_(NULL)
     {}
 
-    virtual ~TreeNodeRRset() {}
+    virtual ~TreeNodeRRset() {
+        delete name_;
+    }
 
     virtual unsigned int getRdataCount() const {
         return (rdataset_->getRdataCount());
@@ -116,6 +118,7 @@ private:
     const size_t rrsig_count_;
     const dns::RRClass rrclass_;
     const bool dnssec_ok_;
+    mutable dns::Name* name_;
 };
 
 } // namespace memory