mirror of
https://github.com/ClickHouse/ClickHouse.git
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82 lines
1.4 KiB
C++
82 lines
1.4 KiB
C++
#include <DB/Storages/MergeTree/RemoteQueryExecutor.h>
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#include <DB/Interpreters/executeQuery.h>
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#include <DB/IO/ReadBufferFromHTTP.h>
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#include <DB/IO/ReadHelpers.h>
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#include <DB/IO/WriteHelpers.h>
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namespace DB
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{
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namespace ErrorCodes
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{
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extern const int ABORTED;
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}
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namespace RemoteQueryExecutor
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{
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namespace
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{
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std::string getEndpointId(const std::string & node_id)
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{
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return "RemoteQueryExecutor:" + node_id;
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}
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}
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Service::Service(Context & context_)
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: context{context_}
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{
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}
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std::string Service::getId(const std::string & node_id) const
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{
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return getEndpointId(node_id);
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}
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void Service::processQuery(const Poco::Net::HTMLForm & params, ReadBuffer & body, WriteBuffer & out)
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{
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if (is_cancelled)
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throw Exception{"RemoteQueryExecutor service terminated", ErrorCodes::ABORTED};
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std::string query = params.get("query");
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bool flag = true;
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try
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{
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(void) executeQuery(query, context, true);
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}
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catch (...)
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{
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tryLogCurrentException(__PRETTY_FUNCTION__);
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flag = false;
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}
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writeBinary(flag, out);
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out.next();
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}
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bool Client::executeQuery(const InterserverIOEndpointLocation & location, const std::string & query)
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{
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ReadBufferFromHTTP::Params params =
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{
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{"endpoint", getEndpointId(location.name)},
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{"compress", "false"},
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{"query", query}
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};
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ReadBufferFromHTTP in{location.host, location.port, params};
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bool flag;
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readBinary(flag, in);
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assertEOF(in);
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return flag;
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}
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}
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}
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