feat: add metadata v2 (de)serializers, MetadataExtractorV2,...

feat: [AOU-403] upgrade pivotal metadata format to version 2

https://issues.unige.ch/browse/AOU-403

AoU-Model/src/main/java/ch/unige/aou/model/xml/deposit/v2/deserializer/FilesDeserializer.java

 package ch.unige.aou.model.xml.deposit.v2.deserializer;
 
 import java.io.IOException;
+import java.math.BigInteger;
 
 import com.fasterxml.jackson.core.JsonParser;
 import com.fasterxml.jackson.core.JsonProcessingException;
 import com.fasterxml.jackson.core.ObjectCodec;
 import com.fasterxml.jackson.databind.DeserializationContext;
 import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.node.ArrayNode;
+
+import ch.unige.solidify.exception.SolidifyRuntimeException;
 
 import ch.unige.aou.model.xml.deposit.AouStdDeserializer;
+import ch.unige.aou.model.xml.deposit.v2.AccessLevel;
+import ch.unige.aou.model.xml.deposit.v2.File;
+import ch.unige.aou.model.xml.deposit.v2.FileType;
 import ch.unige.aou.model.xml.deposit.v2.Files;
 
 public class FilesDeserializer extends AouStdDeserializer<Files> {
@@ -21,10 +28,55 @@ public class FilesDeserializer extends AouStdDeserializer<Files> {
     ObjectCodec codec = parser.getCodec();
     JsonNode jsonNode = codec.readTree(parser);
 
-    Files value = new Files();
+    if (jsonNode instanceof ArrayNode) {
+      if (jsonNode.isEmpty()) {
+        return null;
+      }
+
+      Files files = new Files();
+      for (JsonNode fileNode : jsonNode) {
+        this.addFile(fileNode, files);
+      }
+      return files;
+
+    } else {
+      throw new SolidifyRuntimeException("files is not an array");
+    }
+  }
+
+  private void addFile(JsonNode fileNode, Files files) {
+    File file = new File();
+
+    JsonNode typeNode = fileNode.get("type");
+    if (this.nodeHasTextValue(typeNode)) {
+      file.setType(FileType.fromValue(typeNode.textValue()));
+    }
+
+    JsonNode accessLevelNode = fileNode.get("accessLevel");
+    if (this.nodeHasTextValue(accessLevelNode)) {
+      file.setAccessLevel(AccessLevel.fromValue(accessLevelNode.textValue()));
+    }
+
+    JsonNode nameNode = fileNode.get("name");
+    if (this.nodeHasTextValue(nameNode)) {
+      file.setName(nameNode.textValue());
+    }
+
+    JsonNode sizeNode = fileNode.get("size");
+    if (this.nodeHasTextValue(sizeNode)) {
+      file.setSize(new BigInteger(sizeNode.textValue()));
+    }
+
+    JsonNode mimeTypeNode = fileNode.get("mimetype");
+    if (this.nodeHasTextValue(mimeTypeNode)) {
+      file.setMimetype(mimeTypeNode.textValue());
+    }
 
-    // TODO: implements code
+    JsonNode licenseNode = fileNode.get("license");
+    if (this.nodeHasTextValue(licenseNode)) {
+      file.setLicense(licenseNode.textValue());
+    }
 
-    return value;
+    files.getFile().add(file);
   }
 }