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package ATCCodes.services;
import ATCCodes.AgentCode;
import ATCCodes.AtcCode;
import ATCCodes.FileParsingException;
import org.springframework.core.io.ResourceLoader;
import org.springframework.stereotype.Service;
import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBException;
import javax.xml.bind.annotation.XmlAttribute;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;
import java.io.IOException;
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 WhoAtcCodeService extends FileBasedAgentCodeService {
public WhoAtcCodeService(final ResourceLoader resourceLoader) {
super(resourceLoader);
}
protected List<AgentCode> parseFile(final ResourceLoader resourceLoader) {
var result = new ArrayList<AgentCode>();
var filename = getFilePath("atc.xml");
try {
var inputStream = resourceLoader.getResource(filename).getInputStream();
var context = JAXBContext.newInstance(XmlResource.class);
var xmlResource = (XmlResource) context.createUnmarshaller().unmarshal(inputStream);
for (var row : xmlResource.data.rows) {
if (null == row.code || null == row.name) {
throw new FileParsingException("No XML attribute 'ATCCode' or 'Name' found");
}
result.add(new AtcCode(row.code, row.name));
}
logger.info("Found WHO XML file for ATC-Codes.");
return result;
} catch (IOException e) {
logger.warn("Error reading WHO XML file '{}' for ATC-Codes. Proceeding without inserting data", filename);
} catch (JAXBException | FileParsingException e) {
logger.warn("Error parsing WHO XML file '{}' for ATC-Codes. Proceeding without inserting data", filename);
}
return result;
}
@XmlRootElement(name = "xml")
private static class XmlResource {
@XmlElement(name = "data", namespace = "urn:schemas-microsoft-com:rowset")
public XmlData data;
}
private static class XmlData {
@XmlElement(name = "row", namespace = "#RowsetSchema")
public List<XmlRow> rows;
}
private static class XmlRow {
@XmlAttribute(name = "ATCCode")
public String code;
@XmlAttribute(name = "Name")
public String name;
}
}
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