ZNAP product containing only metadata not read

Marco_EOM · August 30, 2024, 7:48am

I have stored a product in ZNAP format which contains only metadata. But now I can’t open it.
The reader plugin requires that there is at least one data variable.

github.com

senbox-org/snap-engine/blob/ef5512e6d53818f7a29e42a1cf08460deb9dfc89/snap-znap/src/main/java/org/esa/snap/dataio/znap/ZnapProductReaderPlugIn.java#L85


      
                      }
                  }
              }
              final boolean isValidZnapZipArchiveName = productRootName != null && productRootName.toString().toLowerCase().endsWith(ZNAP_ZIP_CONTAINER_EXTENSION);
              if (isValidZnapZipArchiveName) {
                  try (ZipStore zipStore = new ZipStore(productRoot)) {
                      final InputStream productHeaderStream = zipStore.getInputStream(FILENAME_DOT_ZGROUP);
                      final boolean productHeaderExist = productHeaderStream != null;
                      if (productHeaderExist) {
                          final TreeSet<String> arrayKeys = zipStore.getArrayKeys();
                          if (arrayKeys.size() > 0) {
                              return DecodeQualification.INTENDED;
                          }
                      }
                  } catch (IOException e) {
                      return DecodeQualification.UNABLE;
                  }
              }
              return DecodeQualification.UNABLE;
          }

Marco_EOM · September 3, 2024, 9:27am

Will this be considered as a bug? @diana_harosa