TSK-302: now exporting classifications

rest/src/main/java/pro/taskana/rest/ClassificationDefinitionController.java

@@ -0,0 +1,44 @@
+package pro.taskana.rest;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.MediaType;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+import pro.taskana.Classification;
+import pro.taskana.ClassificationQuery;
+import pro.taskana.ClassificationService;
+import pro.taskana.ClassificationSummary;
+import pro.taskana.exceptions.ClassificationNotFoundException;
+
+import java.util.ArrayList;
+import java.util.List;
+
+@RestController
+@RequestMapping(path = "/v1/classificationdefinitions", produces = {MediaType.APPLICATION_JSON_VALUE})
+public class ClassificationDefinitionController {
+
+    @Autowired
+    private ClassificationService classificationService;
+
+    @RequestMapping(method = RequestMethod.GET)
+    public ResponseEntity<List<Classification>> getClassifications(@RequestParam(required = false) String domain) {
+        try {
+            ClassificationQuery query = classificationService.createClassificationQuery();
+            List<ClassificationSummary> summaries = domain != null ? query.domainIn(domain).list() : query.list();
+            List<Classification> export = new ArrayList<>();
+
+            for (ClassificationSummary summary : summaries) {
+                export.add(classificationService.getClassification(summary.getKey(), summary.getDomain()));
+            }
+
+            return new ResponseEntity<>(export, HttpStatus.OK);
+        } catch (ClassificationNotFoundException e) {
+            return new ResponseEntity<>(HttpStatus.NOT_FOUND);
+        }
+
+    }
+}