LedgerKey
LedgerEntryKey(LedgerEntry const& e)
{
auto& d = e.data;
LedgerKey k;
switch (d.type())
{
case ACCOUNT:
k.type(ACCOUNT);
k.account().accountID = d.account().accountID;
break;
case TRUSTLINE:
k.type(TRUSTLINE);
k.trustLine().accountID = d.trustLine().accountID;
k.trustLine().asset = d.trustLine().asset;
break;
case OFFER:
k.type(OFFER);
k.offer().sellerID = d.offer().sellerID;
k.offer().offerID = d.offer().offerID;
break;
case DATA:
k.type(DATA);
k.data().accountID = d.data().accountID;
k.data().dataName = d.data().dataName;
break;
}
return k;
}
AccountFrame::pointer
AccountFrame::loadAccount(AccountID const& accountID, Database& db)
{
LedgerKey key;
key.type(ACCOUNT);
key.account().accountID = accountID;
if (cachedEntryExists(key, db))
{
auto p = getCachedEntry(key, db);
return p ? std::make_shared<AccountFrame>(*p) : nullptr;
}
std::string actIDStrKey = PubKeyUtils::toStrKey(accountID);
std::string publicKey, inflationDest, creditAuthKey;
std::string homeDomain, thresholds;
soci::indicator inflationDestInd;
AccountFrame::pointer res = make_shared<AccountFrame>(accountID);
AccountEntry& account = res->getAccount();
auto prep =
db.getPreparedStatement("SELECT balance, seqnum, numsubentries, "
"inflationdest, homedomain, thresholds, "
"flags, lastmodified "
"FROM accounts WHERE accountid=:v1");
auto& st = prep.statement();
st.exchange(into(account.balance));
st.exchange(into(account.seqNum));
st.exchange(into(account.numSubEntries));
st.exchange(into(inflationDest, inflationDestInd));
st.exchange(into(homeDomain));
st.exchange(into(thresholds));
st.exchange(into(account.flags));
st.exchange(into(res->getLastModified()));
st.exchange(use(actIDStrKey));
st.define_and_bind();
{
auto timer = db.getSelectTimer("account");
st.execute(true);
}
if (!st.got_data())
{
putCachedEntry(key, nullptr, db);
return nullptr;
}
account.homeDomain = homeDomain;
bn::decode_b64(thresholds.begin(), thresholds.end(),
res->mAccountEntry.thresholds.begin());
if (inflationDestInd == soci::i_ok)
{
account.inflationDest.activate() =
PubKeyUtils::fromStrKey(inflationDest);
}
account.signers.clear();
if (account.numSubEntries != 0)
{
auto signers = loadSigners(db, actIDStrKey);
account.signers.insert(account.signers.begin(), signers.begin(),
signers.end());
}
res->normalize();
res->mUpdateSigners = false;
assert(res->isValid());
res->mKeyCalculated = false;
res->putCachedEntry(db);
return res;
}
TrustFrame::pointer
TrustFrame::loadTrustLine(AccountID const& accountID, Asset const& asset,
Database& db)
{
if (asset.type() == ASSET_TYPE_NATIVE)
{
throw std::runtime_error("XLM TrustLine?");
}
else
{
if (accountID == getIssuer(asset))
{
return createIssuerFrame(asset);
}
}
LedgerKey key;
key.type(TRUSTLINE);
key.trustLine().accountID = accountID;
key.trustLine().asset = asset;
if (cachedEntryExists(key, db))
{
auto p = getCachedEntry(key, db);
return p ? std::make_shared<TrustFrame>(*p) : nullptr;
}
std::string accStr, issuerStr, assetStr;
accStr = PubKeyUtils::toStrKey(accountID);
if (asset.type() == ASSET_TYPE_CREDIT_ALPHANUM4)
{
assetCodeToStr(asset.alphaNum4().assetCode, assetStr);
issuerStr = PubKeyUtils::toStrKey(asset.alphaNum4().issuer);
}
else if (asset.type() == ASSET_TYPE_CREDIT_ALPHANUM12)
{
assetCodeToStr(asset.alphaNum12().assetCode, assetStr);
issuerStr = PubKeyUtils::toStrKey(asset.alphaNum12().issuer);
}
auto query = std::string(trustLineColumnSelector);
query += (" WHERE accountid = :id "
" AND issuer = :issuer "
" AND assetcode = :asset");
auto prep = db.getPreparedStatement(query);
auto& st = prep.statement();
st.exchange(use(accStr));
st.exchange(use(issuerStr));
st.exchange(use(assetStr));
pointer retLine;
auto timer = db.getSelectTimer("trust");
loadLines(prep, [&retLine](LedgerEntry const& trust)
{
retLine = make_shared<TrustFrame>(trust);
});
if (retLine)
{
retLine->putCachedEntry(db);
}
else
{
putCachedEntry(key, nullptr, db);
}
return retLine;
}
AccountFrame::pointer
AccountFrame::loadAccount(AccountID const& accountID, Database& db)
{
LedgerKey key;
key.type(ACCOUNT);
key.account().accountID = accountID;
if (cachedEntryExists(key, db))
{
auto p = getCachedEntry(key, db);
return p ? std::make_shared<AccountFrame>(*p) : nullptr;
}
std::string actIDStrKey = PubKeyUtils::toStrKey(accountID);
std::string publicKey, inflationDest, creditAuthKey;
std::string homeDomain, thresholds;
soci::indicator inflationDestInd, homeDomainInd, thresholdsInd;
soci::session& session = db.getSession();
AccountFrame::pointer res = make_shared<AccountFrame>(accountID);
AccountEntry& account = res->getAccount();
{
auto timer = db.getSelectTimer("account");
session << "SELECT balance, seqnum, numsubentries, "
"inflationdest, homedomain, thresholds, flags "
"FROM accounts WHERE accountid=:v1",
into(account.balance), into(account.seqNum),
into(account.numSubEntries), into(inflationDest, inflationDestInd),
into(homeDomain, homeDomainInd), into(thresholds, thresholdsInd),
into(account.flags), use(actIDStrKey);
}
if (!session.got_data())
{
putCachedEntry(key, nullptr, db);
return nullptr;
}
if (homeDomainInd == soci::i_ok)
{
account.homeDomain = homeDomain;
}
if (thresholdsInd == soci::i_ok)
{
bn::decode_b64(thresholds.begin(), thresholds.end(),
res->mAccountEntry.thresholds.begin());
}
if (inflationDestInd == soci::i_ok)
{
account.inflationDest.activate() =
PubKeyUtils::fromStrKey(inflationDest);
}
account.signers.clear();
if (account.numSubEntries != 0)
{
string pubKey;
Signer signer;
auto prep = db.getPreparedStatement("SELECT publickey, weight from "
"signers where accountid =:id");
auto& st = prep.statement();
st.exchange(use(actIDStrKey));
st.exchange(into(pubKey));
st.exchange(into(signer.weight));
st.define_and_bind();
{
auto timer = db.getSelectTimer("signer");
st.execute(true);
}
while (st.got_data())
{
signer.pubKey = PubKeyUtils::fromStrKey(pubKey);
account.signers.push_back(signer);
st.fetch();
}
}
res->normalize();
res->mUpdateSigners = false;
res->mKeyCalculated = false;
res->putCachedEntry(db);
return res;
}