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#include <Interpreters/TablesStatus.h>
#include <IO/ReadBuffer.h>
#include <IO/WriteBuffer.h>
#include <IO/ReadHelpers.h>
#include <IO/WriteHelpers.h>
#include <Core/ProtocolDefines.h>
namespace DB
{
namespace ErrorCodes
{
extern const int TOO_LARGE_ARRAY_SIZE;
extern const int LOGICAL_ERROR;
}
void TableStatus::write(WriteBuffer & out) const
{
writeBinary(is_replicated, out);
if (is_replicated)
{
writeVarUInt(absolute_delay, out);
}
}
void TableStatus::read(ReadBuffer & in)
{
absolute_delay = 0;
readBinary(is_replicated, in);
if (is_replicated)
{
readVarUInt(absolute_delay, in);
}
}
void TablesStatusRequest::write(WriteBuffer & out, UInt64 server_protocol_revision) const
{
if (server_protocol_revision < DBMS_MIN_REVISION_WITH_TABLES_STATUS)
throw Exception(ErrorCodes::LOGICAL_ERROR, "Logical error: method TablesStatusRequest::write is called for unsupported server revision");
writeVarUInt(tables.size(), out);
for (const auto & table_name : tables)
{
writeBinary(table_name.database, out);
writeBinary(table_name.table, out);
}
}
void TablesStatusRequest::read(ReadBuffer & in, UInt64 client_protocol_revision)
{
if (client_protocol_revision < DBMS_MIN_REVISION_WITH_TABLES_STATUS)
throw Exception(ErrorCodes::LOGICAL_ERROR, "method TablesStatusRequest::read is called for unsupported client revision");
size_t size = 0;
readVarUInt(size, in);
if (size > DEFAULT_MAX_STRING_SIZE)
throw Exception(ErrorCodes::TOO_LARGE_ARRAY_SIZE, "Too large collection size.");
for (size_t i = 0; i < size; ++i)
{
QualifiedTableName table_name;
readBinary(table_name.database, in);
readBinary(table_name.table, in);
tables.emplace(std::move(table_name));
}
}
void TablesStatusResponse::write(WriteBuffer & out, UInt64 client_protocol_revision) const
{
if (client_protocol_revision < DBMS_MIN_REVISION_WITH_TABLES_STATUS)
throw Exception(ErrorCodes::LOGICAL_ERROR, "method TablesStatusResponse::write is called for unsupported client revision");
writeVarUInt(table_states_by_id.size(), out);
for (const auto & kv: table_states_by_id)
{
const QualifiedTableName & table_name = kv.first;
writeBinary(table_name.database, out);
writeBinary(table_name.table, out);
const TableStatus & status = kv.second;
status.write(out);
}
}
void TablesStatusResponse::read(ReadBuffer & in, UInt64 server_protocol_revision)
{
if (server_protocol_revision < DBMS_MIN_REVISION_WITH_TABLES_STATUS)
throw Exception(ErrorCodes::LOGICAL_ERROR, "method TablesStatusResponse::read is called for unsupported server revision");
size_t size = 0;
readVarUInt(size, in);
if (size > DEFAULT_MAX_STRING_SIZE)
throw Exception(ErrorCodes::TOO_LARGE_ARRAY_SIZE, "Too large collection size.");
for (size_t i = 0; i < size; ++i)
{
QualifiedTableName table_name;
readBinary(table_name.database, in);
readBinary(table_name.table, in);
TableStatus status;
status.read(in);
table_states_by_id.emplace(std::move(table_name), std::move(status));
}
}
}
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