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Add new snapshot format support

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Reviewers: florijan

Reviewed By: florijan

Subscribers: pullbot

Differential Revision: https://phabricator.memgraph.io/D1082
This commit is contained in:
Dominik Gleich 2017-12-22 13:33:15 +01:00
parent b094e7473b
commit caaab41108
1 changed files with 10 additions and 6 deletions
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16
tests/manual/generate_snapshot.cpp
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@ -75,6 +75,10 @@ class Writer {
durability::kMagicNumber.size()); durability::kMagicNumber.size());
encoder_.WriteTypedValue(durability::kVersion); encoder_.WriteTypedValue(durability::kVersion);
// ID of the vertex generator.
encoder_.WriteInt(0);
// ID of the edge generator.
encoder_.WriteInt(0);
// Transactional ID of the snapshooter. // Transactional ID of the snapshooter.
encoder_.WriteInt(0); encoder_.WriteInt(0);
// Transactional Snapshot is an empty list of transaction IDs. // Transactional Snapshot is an empty list of transaction IDs.
@ -93,7 +97,7 @@ class Writer {
encoder_.WriteRAW(underlying_cast(communication::bolt::Marker::TinyStruct) + encoder_.WriteRAW(underlying_cast(communication::bolt::Marker::TinyStruct) +
3); 3);
encoder_.WriteRAW(underlying_cast(communication::bolt::Signature::Node)); encoder_.WriteRAW(underlying_cast(communication::bolt::Signature::Node));
auto id = node_counter_++; auto id = node_generator_.Next(std::experimental::nullopt);
encoder_.WriteInt(id); encoder_.WriteInt(id);
encoder_.WriteList( encoder_.WriteList(
std::vector<query::TypedValue>{labels.begin(), labels.end()}); std::vector<query::TypedValue>{labels.begin(), labels.end()});
@ -109,7 +113,7 @@ class Writer {
5); 5);
encoder_.WriteRAW( encoder_.WriteRAW(
underlying_cast(communication::bolt::Signature::Relationship)); underlying_cast(communication::bolt::Signature::Relationship));
auto id = edge_counter_++; auto id = edge_generator_.Next(std::experimental::nullopt);
encoder_.WriteInt(id); encoder_.WriteInt(id);
encoder_.WriteInt(bolt_id_from); encoder_.WriteInt(bolt_id_from);
encoder_.WriteInt(bolt_id_to); encoder_.WriteInt(bolt_id_to);
@ -119,15 +123,15 @@ class Writer {
} }
void Close() { void Close() {
buffer_.WriteValue(node_counter_); buffer_.WriteValue(node_generator_.LocalCount());
buffer_.WriteValue(edge_counter_); buffer_.WriteValue(edge_generator_.LocalCount());
buffer_.WriteValue(buffer_.hash()); buffer_.WriteValue(buffer_.hash());
buffer_.Close(); buffer_.Close();
} }
private: private:
int64_t node_counter_{0}; gid::GidGenerator node_generator_{0};
int64_t edge_counter_{0}; gid::GidGenerator edge_generator_{0};
HashedFileWriter buffer_; HashedFileWriter buffer_;
communication::bolt::BaseEncoder<HashedFileWriter> encoder_{buffer_}; communication::bolt::BaseEncoder<HashedFileWriter> encoder_{buffer_};
}; };