Support partial updates in batch API

src/main/java/edu/kit/datamanager/pit/Application.java

@@ -26,7 +26,7 @@
 import edu.kit.datamanager.pit.cli.PidSource;
 import edu.kit.datamanager.pit.common.InvalidConfigException;
 import edu.kit.datamanager.pit.configuration.ApplicationProperties;
-import edu.kit.datamanager.pit.domain.PIDRecord;
+import edu.kit.datamanager.pit.domain.PidRecord;
 import edu.kit.datamanager.pit.pidsystem.IIdentifierSystem;
 import edu.kit.datamanager.pit.pitservice.ITypingService;
 import edu.kit.datamanager.pit.pitservice.impl.TypingService;
@@ -164,7 +164,7 @@ public KeycloakJwtProperties properties() {
     }
 
     @Bean
-    public HttpMessageConverter<PIDRecord> simplePidRecordConverter() {
+    public HttpMessageConverter<PidRecord> simplePidRecordConverter() {
         return new SimplePidRecordConverter();
     }
 

src/main/java/edu/kit/datamanager/pit/cli/CliTaskBootstrap.java

@@ -15,7 +15,7 @@
 import edu.kit.datamanager.pit.common.InvalidConfigException;
 import edu.kit.datamanager.pit.common.PidNotFoundException;
 import edu.kit.datamanager.pit.configuration.ApplicationProperties;
-import edu.kit.datamanager.pit.domain.PIDRecord;
+import edu.kit.datamanager.pit.domain.PidRecord;
 import edu.kit.datamanager.pit.elasticsearch.PidRecordElasticRepository;
 import edu.kit.datamanager.pit.elasticsearch.PidRecordElasticWrapper;
 import edu.kit.datamanager.pit.pidlog.KnownPid;
@@ -77,7 +77,7 @@ public boolean process() throws IOException, InvalidConfigException {
                 // store in Elasticsearch
                 elastic.ifPresent(elastic -> {
                     try {
-                        PIDRecord rec = typingService.queryPid(known.getPid());
+                        PidRecord rec = typingService.queryPid(known.getPid());
                         LOG.info("Store PID {} in Elasticsearch.", known.getPid());
                         PidRecordElasticWrapper wrapper = new PidRecordElasticWrapper(rec, typingService.getOperations());
                         elastic.save(wrapper);

src/main/java/edu/kit/datamanager/pit/common/RecordValidationException.java

@@ -16,7 +16,7 @@
 
 package edu.kit.datamanager.pit.common;
 
-import edu.kit.datamanager.pit.domain.PIDRecord;
+import edu.kit.datamanager.pit.domain.PidRecord;
 import org.springframework.http.HttpStatus;
 import org.springframework.web.server.ResponseStatusException;
 
@@ -31,24 +31,24 @@ public class RecordValidationException extends ResponseStatusException {
     private static final HttpStatus HTTP_STATUS = HttpStatus.BAD_REQUEST;
 
     // For cases in which the PID record should be appended to the error response.
-    private final transient PIDRecord pidRecord;
+    private final transient PidRecord pidRecord;
 
-    public RecordValidationException(PIDRecord pidRecord) {
+    public RecordValidationException(PidRecord pidRecord) {
         super(HTTP_STATUS, VALIDATION_OF_RECORD + pidRecord.getPid() + " failed.");
         this.pidRecord = pidRecord;
     }
 
-    public RecordValidationException(PIDRecord pidRecord, String reason) {
+    public RecordValidationException(PidRecord pidRecord, String reason) {
       super(HTTP_STATUS, VALIDATION_OF_RECORD + pidRecord.getPid() + " failed. Reason: " + reason);
       this.pidRecord = pidRecord;
     }
 
-    public RecordValidationException(PIDRecord pidRecord, String reason, Exception e) {
+    public RecordValidationException(PidRecord pidRecord, String reason, Exception e) {
       super(HTTP_STATUS, VALIDATION_OF_RECORD + pidRecord.getPid() + " failed. Reason: " + reason, e);
       this.pidRecord = pidRecord;
     }
 
-    public PIDRecord getPidRecord() {
+    public PidRecord getPidRecord() {
         return pidRecord;
     }
 }

src/main/java/edu/kit/datamanager/pit/domain/Operations.java

@@ -55,7 +55,7 @@ public Operations(ITypeRegistry typeRegistry, IIdentifierSystem identifierSystem
      * @return the date, if it could have been extracted.
      * @throws IOException on IO errors regarding resolving types.
      */
-    public Optional<Date> findDateCreated(PIDRecord pidRecord) throws IOException {
+    public Optional<Date> findDateCreated(PidRecord pidRecord) throws IOException {
         /* try known types */
         List<String> knownDateTypes = Arrays.asList(Operations.KNOWN_DATE_CREATED);
         Optional<Date> date = knownDateTypes
@@ -117,7 +117,7 @@ public Optional<Date> findDateCreated(PIDRecord pidRecord) throws IOException {
      * @return the date, if it could have been extracted.
      * @throws IOException on IO errors regarding resolving types.
      */
-    public Optional<Date> findDateModified(PIDRecord pidRecord) throws IOException {
+    public Optional<Date> findDateModified(PidRecord pidRecord) throws IOException {
         /* try known types */
         List<String> knownDateTypes = Arrays.asList(Operations.KNOWN_DATE_MODIFIED);
         Optional<Date> date = knownDateTypes

src/main/java/edu/kit/datamanager/pit/domain/PIDRecordEntry.java

@@ -17,10 +17,12 @@
 package edu.kit.datamanager.pit.domain;
 
 import lombok.Data;
+import lombok.EqualsAndHashCode;
 
 @Data
 public class PIDRecordEntry implements Cloneable {
     private String key;
+    @EqualsAndHashCode.Exclude
     private String name;
     private String value;
 

src/main/java/edu/kit/datamanager/pit/domain/PidNode.java

@@ -0,0 +1,25 @@
+package edu.kit.datamanager.pit.domain;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import lombok.*;
+
+// We assume that two PidNode are equal if their PidRecord parts are equal.
+// The "exists" field is not making a difference for content equality.
+// Therefore, just keep the "equal"-implementation from PidRecord.
+@Getter
+@Setter
+@RequiredArgsConstructor
+@ToString
+public class PidNode extends PidRecord {
+    @JsonProperty("placeholder_pid")
+    private String placeholderPid;
+
+    public
+
+    @Override
+    public PidNode clone() {
+        PidNode clone = (PidNode) super.clone();
+        clone.placeholderPid = this.placeholderPid;
+        return clone;
+    }
+}