[HICN-508] [HICN-509] [HICN-506] Manifest rework

Change-Id: I992205148910be008d66b5acb7f6f1365770f9e8
Signed-off-by: Mauro Sardara <msardara@cisco.com>

1 files changed, 74 insertions, 0 deletions

diff --git a/libtransport/src/hicn/transport/protocols/indexer.cc b/libtransport/src/hicn/transport/protocols/indexer.cc
new file mode 100644
index 000000000..c50c4236b
--- /dev/null
+++ b/libtransport/src/hicn/transport/protocols/indexer.cc
@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) 2017-2019 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <hicn/transport/protocols/indexer.h>
+
+#include <hicn/transport/protocols/incremental_indexer.h>
+#include <hicn/transport/protocols/manifest_incremental_indexer.h>
+#include <hicn/transport/protocols/protocol.h>
+#include <hicn/transport/utils/branch_prediction.h>
+
+namespace transport {
+namespace protocol {
+
+IndexManager::IndexManager(interface::ConsumerSocket *icn_socket,
+                           TransportProtocol *transport, Reassembly *reassembly)
+    : indexer_(std::make_unique<IncrementalIndexer>(icn_socket, transport,
+                                                    reassembly)),
+      first_segment_received_(false),
+      icn_socket_(icn_socket),
+      transport_(transport),
+      reassembly_(reassembly) {}
+
+void IndexManager::onContentObject(core::Interest::Ptr &&interest,
+                                   core::ContentObject::Ptr &&content_object) {
+  if (first_segment_received_) {
+    indexer_->onContentObject(std::move(interest), std::move(content_object));
+  } else {
+    std::uint32_t segment_number = interest->getName().getSuffix();
+
+    if (segment_number == 0) {
+      // Check if manifest
+      if (content_object->getPayloadType() == PayloadType::MANIFEST) {
+        IncrementalIndexer *indexer =
+          static_cast<IncrementalIndexer *>(indexer_.release());
+        indexer_ =
+            std::make_unique<ManifestIncrementalIndexer>(std::move(*indexer));
+        delete indexer;
+      }
+
+      indexer_->onContentObject(std::move(interest), std::move(content_object));
+      auto it = interest_data_set_.begin();
+      while (it != interest_data_set_.end()) {
+        indexer_->onContentObject(std::move(const_cast<core::Interest::Ptr &&>(it->first)), std::move(const_cast<core::ContentObject::Ptr &&>(it->second)));
+        it = interest_data_set_.erase(it);
+      }
+
+      first_segment_received_ = true;
+    } else {
+      interest_data_set_.emplace(std::move(interest), std::move(content_object));
+    }
+  }
+}
+
+void IndexManager::reset(std::uint32_t offset) {
+  indexer_ = std::make_unique<IncrementalIndexer>(icn_socket_, transport_,
+                                                  reassembly_);
+  first_segment_received_ = false;
+  interest_data_set_.clear();
+}
+
+}  // namespace protocol
+}  // namespace transport
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