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package ATCCodes.services;
import ATCCodes.AgentCode;
import ATCCodes.AtcCode;
import ATCCodes.FileParsingException;
import org.apache.commons.csv.CSVFormat;
import org.springframework.core.io.ResourceLoader;
import org.springframework.stereotype.Service;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;
/**
* Service to query for agent codes based on WHO xml file
*
* @author Paul-Christian Volkmer
* @since 0.1.0
*/
@Service
public class CsvAtcCodeService extends FileBasedAgentCodeService {
public CsvAtcCodeService(final ResourceLoader resourceLoader) {
super(resourceLoader);
}
protected List<AgentCode> parseFile(final ResourceLoader resourceLoader) {
var result = new ArrayList<AgentCode>();
var filename = getFilePath("atc.csv");
try {
var inputStream = resourceLoader.getResource(filename).getInputStream();
var parser = CSVFormat.RFC4180
.withHeader()
.withSkipHeaderRecord()
.parse(new InputStreamReader(inputStream));
for (var row : parser) {
if (!row.isMapped("CODE") || !row.isMapped("NAME")) {
throw new FileParsingException("No CSV column 'CODE' or 'NAME' found");
}
result.add(new AtcCode(row.get("CODE"), row.get("NAME")));
}
logger.info("Found CSV file for ATC-Codes.");
return result;
} catch (IOException | FileParsingException e) {
logger.warn("Error reading CSV file '{}' for ATC-Codes. Proceeding without data", filename);
}
return result;
}
}
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