Elements  6.0.1
A C++ base framework for the Euclid Software.
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DataSynchronizer.cpp
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2  * Copyright (C) 2012-2020 Euclid Science Ground Segment
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18 
19 #include "ElementsKernel/Unused.h"
20 #include <string>
21 
24 
25 namespace Elements {
26 inline namespace Services {
27 namespace DataSync {
28 
30  : m_connection(connection), m_fileMap(dependency.fileMap()) {}
31 
33  for (const auto& item : m_fileMap) {
34  const auto& localFile = item.first;
35  const auto& distantFile = item.second;
36  if (fileShouldBeWritten(localFile)) {
37  downloadOneFile(distantFile, localFile);
38  }
39  }
40 }
41 
43  if (not fileAlreadyExists(localFile)) {
44  return true;
45  }
47 }
48 
50  return boost::filesystem::is_regular_file(localFile);
51 }
52 
53 void DataSynchronizer::downloadOneFile(path distantFile, path localFile) const {
54  std::string command = createDownloadCommand(distantFile, localFile);
55  createLocalDirOf(localFile);
56  const auto outErr = runCommandAndCaptureOutErr(command);
57  if (not hasBeenDownloaded(distantFile, localFile)) {
58  throw DownloadFailed(distantFile, localFile);
59  }
60 }
61 
62 bool DataSynchronizer::hasBeenDownloaded(ELEMENTS_UNUSED path distantFile, path localFile) const {
63  if (not boost::filesystem::is_regular_file(localFile)) {
64  return false;
65  }
66  return boost::filesystem::file_size(localFile) > 0;
67 }
68 
69 } // namespace DataSync
70 } // namespace Services
71 } // namespace Elements
ELEMENTS_API void createLocalDirOf(path localFile)
Macro to silence unused variables warnings from the compiler.
STL class.
bool hasBeenDownloaded(path distantFile, path localFile) const
The dependency configurations holds, for each test file to be retrieved:
DataSynchronizer(const ConnectionConfiguration &connection, const DependencyConfiguration &dependency)
virtual std::string createDownloadCommand(path distantFile, path localFile) const =0
ELEMENTS_API std::pair< std::string, std::string > runCommandAndCaptureOutErr(std::string command)
void downloadOneFile(path distantFile, path localFile) const
bool overwritingAllowed() const
Check whether existing local files can be overwritten.
#define ELEMENTS_UNUSED
Definition: Unused.h:39
Path::Item path
importing the path item from ElementsKernel
Definition: DataSyncUtils.h:41
The connection configuration mainly holds:
An exception raised when downloading fails.