implemented postgres queries (need to update schema)

2025-11-20 19:56:00 +00:00 · 2021-03-01 16:25:47 -05:00
parent 6839538b3c
commit f992140646
4 changed files with 748 additions and 0 deletions
--- a/reporting/PostgresBackend.h
+++ b/reporting/PostgresBackend.h
@@ -0,0 +1,101 @@
+#ifndef RIPPLE_APP_REPORTING_POSTGRESBACKEND_H_INCLUDED
+#define RIPPLE_APP_REPORTING_POSTGRESBACKEND_H_INCLUDED
+#include <boost/json.hpp>
+#include <reporting/BackendInterface.h>
+
+namespace Backend {
+class PostgresBackend : public BackendInterface
+{
+private:
+    mutable std::stringstream objectsBuffer_;
+    mutable std::stringstream transactionsBuffer_;
+    mutable std::stringstream booksBuffer_;
+    mutable std::stringstream accountTxBuffer_;
+    mutable bool abortWrite_ = false;
+
+public:
+    std::shared_ptr<PgPool> pgPool_;
+    PostgresBackend(boost::json::object const& config);
+
+    std::optional<uint32_t>
+    fetchLatestLedgerSequence() const override;
+
+    std::optional<ripple::LedgerInfo>
+    fetchLedgerBySequence(uint32_t sequence) const override;
+
+    std::optional<Blob>
+    fetchLedgerObject(ripple::uint256 const& key, uint32_t sequence)
+        const override;
+
+    // returns a transaction, metadata pair
+    std::optional<TransactionAndMetadata>
+    fetchTransaction(ripple::uint256 const& hash) const override;
+
+    LedgerPage
+    fetchLedgerPage(
+        std::optional<ripple::uint256> const& cursor,
+        std::uint32_t ledgerSequence,
+        std::uint32_t limit) const override;
+
+    std::vector<LedgerObject>
+    fetchBookOffers(
+        ripple::uint256 const& book,
+        uint32_t ledgerSequence,
+        std::optional<ripple::uint256> const& cursor) const override;
+
+    std::vector<TransactionAndMetadata>
+    fetchTransactions(
+        std::vector<ripple::uint256> const& hashes) const override;
+
+    std::vector<Blob>
+    fetchLedgerObjects(
+        std::vector<ripple::uint256> const& keys,
+        uint32_t sequence) const override;
+
+    std::pair<
+        std::vector<TransactionAndMetadata>,
+        std::optional<AccountTransactionsCursor>>
+    fetchAccountTransactions(
+        ripple::AccountID const& account,
+        std::optional<AccountTransactionsCursor> const& cursor) const override;
+
+    void
+    writeLedger(
+        ripple::LedgerInfo const& ledgerInfo,
+        std::string&& ledgerHeader,
+        bool isFirst) const override;
+
+    void
+    writeLedgerObject(
+        std::string&& key,
+        uint32_t seq,
+        std::string&& blob,
+        bool isCreated,
+        bool isDeleted,
+        std::optional<ripple::uint256>&& book) const override;
+
+    void
+    writeTransaction(
+        std::string&& hash,
+        uint32_t seq,
+        std::string&& transaction,
+        std::string&& metadata) const override;
+
+    void
+    writeAccountTransactions(
+        std::vector<AccountTransactionsData>&& data) const override;
+
+    void
+    open() override;
+
+    void
+    close() override;
+
+    void
+    startWrites() const override;
+
+    bool
+    finishWrites() const override;
+};
+}  // namespace Backend
+#endif