Added whitespace trimming to uploaded custom metadata TSV files

doc/release-notes/10688_whitespace_trimming.md

@@ -0,0 +1,6 @@
+### Added whitespace trimming to uploaded custom metadata TSV files
+
+When loading custom metadata blocks using the `api/admin/datasetfield/load` API, whitespace can be introduced into field names. 
+This change trims whitespace at the beginning and end of all values read into the API before persisting them.
+
+For more information, see #10688.

src/main/java/edu/harvard/iq/dataverse/api/DatasetFieldServiceApi.java

@@ -126,7 +126,7 @@ public Response getByName(@PathParam("name") String name) {
             String solrFieldSearchable = dsf.getSolrField().getNameSearchable();
             String solrFieldFacetable = dsf.getSolrField().getNameFacetable();
             String metadataBlock = dsf.getMetadataBlock().getName();
-            String uri=dsf.getUri();
+            String uri = dsf.getUri();
             boolean hasParent = dsf.isHasParent();
             boolean allowsMultiples = dsf.isAllowMultiples();
             boolean isRequired = dsf.isRequired();
@@ -243,7 +243,9 @@ public Response loadDatasetFields(File file) {
             br = new BufferedReader(new FileReader("/" + file));
             while ((line = br.readLine()) != null) {
                 lineNumber++;
-                values = line.split(splitBy);
+                values = Arrays.stream(line.split(splitBy))
+                    .map(String::trim)
+                    .toArray(String[]::new);
                 if (values[0].startsWith("#")) { // Header row
                     switch (values[0]) {
                         case "#metadataBlock":
@@ -326,17 +328,17 @@ public Response loadDatasetFields(File file) {
      */
     public String getGeneralErrorMessage(HeaderType header, int lineNumber, String message) {
         List<String> arguments = new ArrayList<>();
-        arguments.add(header.name());
+        arguments.add(header != null ? header.name() : "unknown");
         arguments.add(String.valueOf(lineNumber));
         arguments.add(message);
         return BundleUtil.getStringFromBundle("api.admin.datasetfield.load.GeneralErrorMessage", arguments);
     }
 
     /**
      * Turn ArrayIndexOutOfBoundsException into an informative error message
-     * @param lineNumber
      * @param header
-     * @param e
+     * @param lineNumber
+     * @param wrongIndex
      * @return
      */
     public String getArrayIndexOutOfBoundMessage(HeaderType header,

src/test/java/edu/harvard/iq/dataverse/api/DatasetFieldServiceApiTest.java

@@ -1,15 +1,61 @@
 package edu.harvard.iq.dataverse.api;
 
+import edu.harvard.iq.dataverse.ControlledVocabularyValueServiceBean;
+import edu.harvard.iq.dataverse.DatasetFieldServiceBean;
+import edu.harvard.iq.dataverse.DataverseServiceBean;
+import edu.harvard.iq.dataverse.MetadataBlockServiceBean;
+import edu.harvard.iq.dataverse.actionlogging.ActionLogServiceBean;
 import edu.harvard.iq.dataverse.util.BundleUtil;
+import jakarta.json.Json;
+import jakarta.json.JsonObject;
+import jakarta.json.JsonReader;
+import jakarta.ws.rs.core.Response;
+import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.Mock;
+import org.mockito.junit.jupiter.MockitoExtension;
 
+import java.io.File;
+import java.io.StringReader;
+import java.nio.file.Path;
+import java.nio.file.Paths;
 import java.util.ArrayList;
 import java.util.List;
 
+import static org.assertj.core.api.Assertions.assertThat;
 import static org.junit.jupiter.api.Assertions.assertEquals;
 
+@ExtendWith(MockitoExtension.class)
 public class DatasetFieldServiceApiTest {
 
+    @Mock
+    private ActionLogServiceBean actionLogSvc;
+
+    @Mock
+    private MetadataBlockServiceBean metadataBlockService;
+
+    @Mock
+    private DataverseServiceBean dataverseService;
+
+    @Mock
+    private DatasetFieldServiceBean datasetFieldService;
+
+    @Mock
+    private ControlledVocabularyValueServiceBean controlledVocabularyValueService;
+
+    private DatasetFieldServiceApi api;
+
+    @BeforeEach
+    public void setup(){
+        api = new DatasetFieldServiceApi();
+        api.actionLogSvc = actionLogSvc;
+        api.metadataBlockService = metadataBlockService;
+        api.dataverseService = dataverseService;
+        api.datasetFieldService = datasetFieldService;
+        api.controlledVocabularyValueService = controlledVocabularyValueService;
+    }
+
     @Test
     public void testArrayIndexOutOfBoundMessageBundle() {
         List<String> arguments = new ArrayList<>();
@@ -59,4 +105,41 @@ public void testGetGeneralErrorMessage() {
             message
         );
     }
+
+    @Test
+    public void testGetGeneralErrorMessageEmptyHeader() {
+        DatasetFieldServiceApi api = new DatasetFieldServiceApi();
+        String message = api.getGeneralErrorMessage(null, 5, "some error");
+        assertEquals(
+            "Error parsing metadata block in unknown part, line #5: some error",
+            message
+        );
+    }
+
+    @Test
+    public void testLoadDatasetFieldsWhitespaceTrimming() {
+
+        Path resourceDirectory = Paths.get("src/test/resources/tsv/whitespace-test.tsv");
+        File testfile = new File(resourceDirectory.toFile().getAbsolutePath());
+        JsonReader jsonReader;
+        try (Response response = api.loadDatasetFields(testfile)) {
+            assertEquals(200, response.getStatus());
+            jsonReader = Json.createReader(new StringReader(response.getEntity().toString()));
+        }
+        JsonObject jsonObject = jsonReader.readObject();
+
+        final List<String> metadataNames = jsonObject.getJsonObject("data").getJsonArray("added")
+            .getValuesAs(e -> e.asJsonObject().getString("name"));
+        assertThat(metadataNames).contains("whitespaceDemo")
+            .contains("whitespaceDemoOne")
+            .contains("whitespaceDemoTwo")
+            .contains("whitespaceDemoThree")
+            .contains("CV1")
+            .contains("CV2")
+            .contains("CV3");
+        assertThat(metadataNames).doesNotContain(" whitespaceDemo")
+            .doesNotContain("whitespaceDemoOne ")
+            .doesNotContain("CV1 ")
+            .doesNotContain(" CV2");
+    }
 }

src/test/resources/tsv/whitespace-test.tsv

@@ -0,0 +1,10 @@
+#metadataBlock 	name	dataverseAlias	displayName
+	 whitespaceDemo		Whitespace Demo
+#datasetField	name	title	description	watermark	fieldType	displayOrder	displayFormat	advancedSearchField	allowControlledVocabulary	allowmultiples	facetable	displayoncreate	required	parent	metadatablock_id
+	whitespaceDemoOne 	One	Trailing Space		text	0		TRUE	TRUE	TRUE	FALSE	TRUE	FALSE		whitespaceDemo
+	 whitespaceDemoTwo	Two	Leading Space		text	1		TRUE	TRUE	TRUE	FALSE	TRUE	FALSE		whitespaceDemo
+	whitespaceDemoThree	Three	CV with errors		text	2		TRUE	TRUE	TRUE	FALSE	TRUE	FALSE		whitespaceDemo
+#controlledVocabulary	DatasetField	Value	identifier	displayOrder
+	whitespaceDemoThree	CV1 		0
+	whitespaceDemoThree	 CV2		1
+	whitespaceDemoThree	CV3		2