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lib/curl/Delegate: helper class for response body parsers

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Eliminate duplicate code.
This commit is contained in:
Max Kellermann
2018-01-21 20:31:59 +01:00
parent 8b42fd0a28
commit 1da64fb79c
12 changed files with 375 additions and 162 deletions
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44
src/input/plugins/TidalTrackRequest.hxx
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@@ -21,17 +21,9 @@
#define TIDAL_TRACK_REQUEST_HXX
#include "check.h"
#include "lib/curl/Handler.hxx"
#include "lib/curl/Delegate.hxx"
#include "lib/curl/Slist.hxx"
#include "lib/curl/Request.hxx"
#include "lib/yajl/Handle.hxx"
#include <exception>
#include <memory>
#include <string>
class CurlRequest;
class TidalErrorParser;
/**
* Callback class for #TidalTrackRequest.
@@ -51,27 +43,16 @@ public:
*
* After construction, call Start() to initiate the request.
*/
class TidalTrackRequest final : CurlResponseHandler {
class TidalTrackRequest final : DelegateCurlResponseHandler {
CurlSlist request_headers;
CurlRequest request;
std::unique_ptr<TidalErrorParser> error_parser;
Yajl::Handle parser;
enum class State {
NONE,
URLS,
} state = State::NONE;
std::string url;
std::exception_ptr error;
TidalTrackHandler &handler;
public:
class ResponseParser;
TidalTrackRequest(CurlGlobal &curl,
const char *base_url, const char *token,
const char *session,
@@ -85,18 +66,13 @@ public:
}
private:
/* virtual methods from CurlResponseHandler */
void OnHeaders(unsigned status,
std::multimap<std::string, std::string> &&headers) override;
void OnData(ConstBuffer<void> data) override;
void OnEnd() override;
void OnError(std::exception_ptr e) noexcept override;
/* virtual methods from DelegateCurlResponseHandler */
std::unique_ptr<CurlResponseParser> MakeParser(unsigned status,
std::multimap<std::string, std::string> &&headers) override;
void FinishParser(std::unique_ptr<CurlResponseParser> p) override;
public:
/* yajl callbacks */
bool String(StringView value) noexcept;
bool MapKey(StringView value) noexcept;
bool EndMap() noexcept;
/* virtual methods from CurlResponseHandler */
void OnError(std::exception_ptr e) noexcept override;
};
#endif