Issue #5: Vorschlag für den Aufbau des Projekts

* Maven-Projekt direkt im Hauptverzeichnis
* Anpassung der Maven-POM-Datei - nicht benötigte Abhängigkeiten entfernt
* Gitignore-Datei angelegt

1 files changed, 51 insertions, 0 deletions

diff --git a/src/main/java/ATCCodes/services/CsvAtcCodeService.java b/src/main/java/ATCCodes/services/CsvAtcCodeService.java
new file mode 100644
index 0000000..fa834e7
--- /dev/null
+++ b/src/main/java/ATCCodes/services/CsvAtcCodeService.java
@@ -0,0 +1,51 @@
+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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