Add the local zone data class

src/lib/cache/local_zone_data.cc

@@ -0,0 +1,51 @@
+// Copyright (C) 2010  Internet Systems Consortium, Inc. ("ISC")
+//
+// Permission to use, copy, modify, and/or distribute this software for any
+// purpose with or without fee is hereby granted, provided that the above
+// copyright notice and this permission notice appear in all copies.
+//
+// THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
+// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+// AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
+// INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+// LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
+// OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+// PERFORMANCE OF THIS SOFTWARE.
+
+// $Id$
+
+#include <dns/rrset.h>
+#include "local_zone_data.h"
+
+using namespace std;
+using namespace isc::dns;
+
+namespace isc {
+namespace cache {
+
+typedef pair<std::string, RRsetPtr> RRsetMapPair;
+
+RRsetPtr
+LocalZoneData::lookup(const isc::dns::Name& qname,
+                      const isc::dns::RRType& qtype)
+{
+    
+
+}
+
+void
+LocalZoneData::update(const isc::dns::RRset& rrset) {
+    //TODO Do we really need to recreate the rrset again?
+    string key = genCacheEntryName(rrset.getName(), rrset.getRRType());
+    
+    rrsets_map_.insert(RRsetMapPair(key, rrset_ptr));
+}
+
+    std::map<std::string, RRsetPtr> rrsets_map_; // RRsets of the zone
+    uint16_t class_; // The class of the zone
+
+} // namespace cache
+} // namespace isc
+
+#endif // _LOCAL_ZONE_DATA
+

src/lib/cache/local_zone_data.h

@@ -0,0 +1,57 @@
+// Copyright (C) 2010  Internet Systems Consortium, Inc. ("ISC")
+//
+// Permission to use, copy, modify, and/or distribute this software for any
+// purpose with or without fee is hereby granted, provided that the above
+// copyright notice and this permission notice appear in all copies.
+//
+// THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
+// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+// AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
+// INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+// LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
+// OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+// PERFORMANCE OF THIS SOFTWARE.
+
+// $Id$
+
+#ifndef _LOCAL_ZONE_DATA
+#define _LOCAL_ZONE_DATA
+
+#include <map>
+#include <string>
+#include <boost/shared_ptr.hpp>
+#include <dns/rrset.h>
+
+namespace isc {
+namespace cache {
+
+/// \brief Local Zone Data
+/// The object of LocalZoneData represents the data of one
+/// local zone. It provides the interface for lookup the rrsets
+/// in the zone.
+class LocalZoneData {
+public:
+    LocalZoneData(uint16_t rrset_class) : class_(rrset_class)
+    {}
+
+    /// \brief Look up one rrset.
+    /// \return return the shared_ptr of rrset if it can 
+    /// found in the local zone, or else, return NULL.
+    RRsetPtr lookup(const isc::dns::Name& qname,
+                    const isc::dns::RRType& qtype);
+    
+    /// \brief Update the rrset in the local zone. If the 
+    /// the rrset doesn't exist, it will be added directly,
+    /// or else, the existed one will be overwrited.
+    void update(const isc::dns::RRset& rrset);
+
+private:
+    std::map<std::string, RRsetPtr> rrsets_map_; // RRsets of the zone
+    uint16_t class_; // The class of the zone
+};
+
+} // namespace cache
+} // namespace isc
+
+#endif // _LOCAL_ZONE_DATA
+

src/lib/cache/rrset_copy.cc

@@ -0,0 +1,42 @@
+// Copyright (C) 2010  Internet Systems Consortium, Inc. ("ISC")
+//
+// Permission to use, copy, modify, and/or distribute this software for any
+// purpose with or without fee is hereby granted, provided that the above
+// copyright notice and this permission notice appear in all copies.
+//
+// THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
+// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+// AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
+// INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+// LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
+// OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+// PERFORMANCE OF THIS SOFTWARE.
+
+// $Id$
+
+#include "rrset_copy.h"
+#include <dns/rrset.h>
+
+namespace isc {
+namespace cache {
+
+void
+rrset_copy(const isc::dns::RRset& src, isc::dns::RRset& dst) {
+    RdataIteratorPtr rdata_itor = src.getRdataIterator();
+    rdata_itor->first();
+    while(!rdata_itor->isLast()){
+        dst->addRdata(rdata_itor->getCurrent());
+        rdata_itor->next();
+    }
+
+    RRsetPtr rrsig = src.getRRsig();
+    if (rrsig != NULL){
+        dst->addRRsig(rrsig);
+    }
+}
+
+} // namespace cache
+} // namespace isc
+
+#endif // __RRSET_COPY_
+

src/lib/cache/rrset_copy.h

@@ -0,0 +1,37 @@
+// Copyright (C) 2010  Internet Systems Consortium, Inc. ("ISC")
+//
+// Permission to use, copy, modify, and/or distribute this software for any
+// purpose with or without fee is hereby granted, provided that the above
+// copyright notice and this permission notice appear in all copies.
+//
+// THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
+// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+// AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
+// INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+// LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
+// OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+// PERFORMANCE OF THIS SOFTWARE.
+
+// $Id$
+
+#ifndef __RRSET_COPY_
+#define __RRSET_COPY_
+
+namespace isc {
+namespace cache {
+
+class RRset;
+
+/// \brief RRset Copy Function
+/// \note RRset class doesn't provide the interface for
+///       doing RRset copy. But in cache's code, sometime
+///       we have to do the copy.
+
+void
+rrset_copy(const isc::dns::RRset& src, isc::dns::RRset& dst);
+
+} // namespace cache
+} // namespace isc
+
+#endif // __RRSET_COPY_
+