Fixing issue: #24432 Using LinkedHashMap<String, String> instead of

LinkedHashMap<String, Object>

CHANGELOG.md

@@ -6,7 +6,10 @@ This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.htm
 
 ## [v2.0.1] - 2022-01-12
 
+#### Bug fixes
+
 - [#24263] Fixing JSON library v20090211
+- [#24432] Fixing serialization issue using LinkedHashMap<String, String> instead of LinkedHashMap<String, Object>
 
 ## [v2.0.0] - 2022-11-17
 

src/main/java/org/gcube/application/geoportalcommon/ConvertToDataValueObjectModel.java

@@ -867,7 +867,7 @@ public class ConvertToDataValueObjectModel {
 		}
 
 		if (listDocumentKeys != null && !getFullMap) {
-			LinkedHashMap<String, Object> documentAsMap = new LinkedHashMap<String, Object>(listDocumentKeys.size());
+			LinkedHashMap<String, String> documentAsMap = new LinkedHashMap<String, String>(listDocumentKeys.size());
 			for (String key : listDocumentKeys) {
 
 				documentAsMap = fillMapValue(document, key, documentAsMap);
@@ -877,7 +877,7 @@ public class ConvertToDataValueObjectModel {
 
 		if (getFullMap) {
 			Set<String> keySet = document.keySet();
-			LinkedHashMap<String, Object> documentAsMap = new LinkedHashMap<String, Object>(keySet.size());
+			LinkedHashMap<String, String> documentAsMap = new LinkedHashMap<String, String>(keySet.size());
 			for (String key : keySet) {
 				// documentAsMap.put(key, document.get(key));
 				documentAsMap = fillMapValue(document, key, documentAsMap);
@@ -979,8 +979,8 @@ public class ConvertToDataValueObjectModel {
 	 * @param documentAsMap the document as map
 	 * @return the linked hash map
 	 */
-	public static LinkedHashMap<String, Object> fillMapValue(Document document, String key,
+	public static LinkedHashMap<String, String> fillMapValue(Document document, String key,
-			LinkedHashMap<String, Object> documentAsMap) {
+			LinkedHashMap<String, String> documentAsMap) {
 
 		Object value = document.get(key);
 		String keyLower = key.toLowerCase();
@@ -1000,7 +1000,7 @@ public class ConvertToDataValueObjectModel {
 			}
 		}
 
-		documentAsMap.put(key, value);
+		documentAsMap.put(key, value!=null?value.toString():null);
 		return documentAsMap;
 	}
 

src/main/java/org/gcube/application/geoportalcommon/shared/geoportal/DocumentDV.java

@@ -10,7 +10,7 @@ public class DocumentDV implements Serializable {
 	 * 
 	 */
 	private static final long serialVersionUID = 4978517506036855883L;
-	protected LinkedHashMap<String, Object> documentAsMap;
+	protected LinkedHashMap<String, String> documentAsMap;
 	private String documentAsJSON;
 	private ConfigurationDV<?> configuration;
 
@@ -19,11 +19,11 @@ public class DocumentDV implements Serializable {
 	public DocumentDV() {
 	}
 
-	public LinkedHashMap<String, Object> getDocumentAsMap() {
+	public LinkedHashMap<String, String> getDocumentAsMap() {
 		return documentAsMap;
 	}
 
-	public Entry<String, Object> getFirstEntryOfMap() {
+	public Entry<String, String> getFirstEntryOfMap() {
 		if (documentAsMap != null && documentAsMap.size() >= 1) {
 			return documentAsMap.entrySet().iterator().next();
 		}
@@ -43,7 +43,7 @@ public class DocumentDV implements Serializable {
 		return documentAsJSON;
 	}
 
-	public void setDocumentAsMap(LinkedHashMap<String, Object> documentAsMap) {
+	public void setDocumentAsMap(LinkedHashMap<String, String> documentAsMap) {
 		this.documentAsMap = documentAsMap;
 	}
 

src/main/java/org/gcube/application/geoportalcommon/shared/geoportal/ResultDocumentDV.java

@@ -47,9 +47,9 @@ public class ResultDocumentDV extends DocumentDV implements Serializable {
 	public void addItemToMap(String property, Object value) {
 
 		if (documentAsMap == null)
-			documentAsMap = new LinkedHashMap<String, Object>();
+			documentAsMap = new LinkedHashMap<String, String>();
 
-		documentAsMap.put(property, value);
+		documentAsMap.put(property, value!=null?value.toString():null);
 	}
 
 	public BasicLifecycleInformationDV getLifecycleInfo() {

src/main/java/org/gcube/application/geoportalcommon/shared/geoportal/view/CheckEmpty.java

@@ -2,6 +2,6 @@ package org.gcube.application.geoportalcommon.shared.geoportal.view;
 
 public interface CheckEmpty {
 	
-	public boolean isEmpty();
+	public Boolean isEmpty();
 
 }

src/main/java/org/gcube/application/geoportalcommon/shared/geoportal/view/SectionView.java

@@ -35,7 +35,7 @@ public class SectionView implements Serializable, CheckEmpty {
 	 * @return true, if is empty
 	 */
 	@Override
-	public boolean isEmpty() {
+	public Boolean isEmpty() {
 		if (listSubDocuments == null)
 			return true;
 
@@ -53,7 +53,7 @@ public class SectionView implements Serializable, CheckEmpty {
 	 *
 	 * @return true, if successful
 	 */
-	public boolean hasSpatialLayers() {
+	public Boolean hasSpatialLayers() {
 		if (listSubDocuments == null)
 			return false;
 

src/main/java/org/gcube/application/geoportalcommon/shared/geoportal/view/SubDocumentView.java

@@ -24,7 +24,7 @@ public class SubDocumentView implements Serializable, CheckEmpty {
 	}
 
 	@Override
-	public boolean isEmpty() {
+	public Boolean isEmpty() {
 		
 		if (metadataAsJSON != null && !metadataAsJSON.isEmpty())
 			return false;

src/main/java/org/gcube/application/geoportalcommon/util/DateUtils.java

@@ -1,5 +1,6 @@
 package org.gcube.application.geoportalcommon.util;
 
+import java.text.SimpleDateFormat;
 import java.time.Instant;
 import java.time.LocalDate;
 import java.time.LocalDateTime;
@@ -82,6 +83,12 @@ public class DateUtils {
 			// TODO: handle exception
 		}
 		
+		try {
+			return new SimpleDateFormat("yyy-MM-dd").parse(date);
+		} catch (Exception e) {
+			// TODO: handle exception
+		}
+
 		return null;
 	}
 }

src/test/java/org/gcube/application/Project_Tests.java

@@ -80,7 +80,7 @@ public class Project_Tests {
 		ProjectDV projectDV = ConvertToDataValueObjectModel.toProjectDV(project, projectBuilder);
 		System.out.println(projectDV);
 
-		LinkedHashMap<String, Object> theMap = projectDV.getTheDocument().getDocumentAsMap();
+		LinkedHashMap<String, String> theMap = projectDV.getTheDocument().getDocumentAsMap();
 		for (String key : theMap.keySet()) {
 			Object theValue = theMap.get(key);
 			System.out.println("The key: " + key + " has value: " + theValue);