src/apps/haikudepot/server/AbstractServerProcess.h

   1 /*
   2  * Copyright 2017, Andrew Lindesay <apl@lindesay.co.nz>.
   3  * All rights reserved. Distributed under the terms of the MIT License.
   4  */
   5
   6 #ifndef ABSTRACT_SERVER_PROCESS_H
   7 #define ABSTRACT_SERVER_PROCESS_H
   8
   9 #include <Json.h>
  10 #include <String.h>
  11 #include <Url.h>
  12
  13 #include "StandardMetaData.h"
  14
  15
  16 #define APP_ERR_NOT_MODIFIED (B_APP_ERROR_BASE + 452)
  17
  18
  19 class AbstractServerProcess {
  20 public:
  21         virtual status_t                        Run() = 0;
  22
  23 protected:
  24         virtual void                            GetStandardMetaDataPath(
  25                                                                         BPath& path) const = 0;
  26         virtual void                            GetStandardMetaDataJsonPath(
  27                                                                         BString& jsonPath) const = 0;
  28         virtual const char*                     LoggingName() const = 0;
  29
  30                         status_t                        IfModifiedSinceHeaderValue(
  31                                                                         BString& headerValue) const;
  32                         status_t                        IfModifiedSinceHeaderValue(
  33                                                                         BString& headerValue,
  34                                                                         const BPath& metaDataPath,
  35                                                                         const BString& jsonPath) const;
  36
  37                         status_t                        PopulateMetaData(
  38                                                                         StandardMetaData& metaData,
  39                                                                         const BPath& path,
  40                                                                         const BString& jsonPath) const;
  41
  42                         status_t                        ParseJsonFromFileWithListener(
  43                                                                         BJsonEventListener *listener,
  44                                                                         const BPath& path) const;
  45
  46                         status_t                        DownloadToLocalFile(
  47                                                                         const BPath& targetFilePath,
  48                                                                         const BUrl& url,
  49                                                                         uint32 redirects, uint32 failures);
  50
  51                         status_t                        MoveDamagedFileAside(
  52                                                                         const BPath& currentFilePath);
  53
  54 private:
  55                         bool                            LooksLikeGzip(const char *pathStr) const;
  56
  57 };
  58
  59 #endif // ABSTRACT_SERVER_PROCESS_H