added a method to retrieve a record from the index

src/main/java/eu/dnetlib/app/directindex/controllers/LegacyApiController.java

@@ -1,5 +1,8 @@
 package eu.dnetlib.app.directindex.controllers;
 
+import java.util.LinkedHashMap;
+import java.util.Map;
+
 import javax.servlet.http.HttpServletRequest;
 
 import org.apache.commons.lang3.exception.ExceptionUtils;
@@ -10,6 +13,7 @@ import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
 import org.springframework.http.HttpStatus;
 import org.springframework.web.bind.annotation.DeleteMapping;
 import org.springframework.web.bind.annotation.ExceptionHandler;
+import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.RequestBody;
@@ -23,6 +27,8 @@ import eu.dnetlib.app.directindex.errors.DirectIndexApiException;
 import eu.dnetlib.app.directindex.input.ResultEntry;
 import eu.dnetlib.app.directindex.mapping.SolrRecordMapper;
 import eu.dnetlib.app.directindex.service.DirectIndexService;
+import eu.dnetlib.app.directindex.solr.SolrIndexClientFactory;
+import eu.dnetlib.dhp.schema.solr.SolrRecord;
 
 @RestController
 @RequestMapping("/api")
@@ -37,20 +43,33 @@ public class LegacyApiController {
 	@Autowired
 	private SolrRecordMapper solrRecordMapper;
 
+	@Autowired
+	private SolrIndexClientFactory solrIndexClientFactory;
+
 	@PostMapping("/results/feedObject")
-	public String feedResult(@RequestBody final ResultEntry pub,
+	public String feedResult(@RequestBody final ResultEntry pub, final HttpServletRequest req)
-			@RequestParam(value = "commit", required = false, defaultValue = "true") final boolean commit,
-			final HttpServletRequest req)
 			throws DirectIndexApiException {
 
 		return service.prepareMetadataInsertOrUpdate(pub, req.getRemoteAddr());
 
 	}
 
+	@GetMapping("/result/{openaireId}")
+	public Map<String, Object> getResultWithOpenaireId(@PathVariable(value = "openaireId") final String openaireId) throws DirectIndexApiException {
+
+		final SolrRecord indexed = solrIndexClientFactory.getClient().findRecord(openaireId);
+
+		final Map<String, Object> res = new LinkedHashMap<String, Object>();
+		res.put("indexed_oaf", indexed);
+		res.put("indexed_simple", indexed != null ? solrRecordMapper.toResultEntry(indexed) : null);
+		res.put("pending_action", service.findPendingAction(openaireId).orElse(null));
+
+		return res;
+	}
+
 	@DeleteMapping("/result/{openaireId}")
-	public boolean deleteResultWithOpenaireId(@PathVariable(value = "openaireId") final String openaireId,
+	public boolean deleteResultWithOpenaireId(@PathVariable(value = "openaireId") final String openaireId, final HttpServletRequest req)
-			@RequestParam(value = "commit", required = false, defaultValue = "true") final boolean commit,
+			throws DirectIndexApiException {
-			final HttpServletRequest req) throws DirectIndexApiException {
 
 		service.prepareMetadataDeletion(openaireId, req.getRemoteAddr());
 
@@ -61,7 +80,6 @@ public class LegacyApiController {
 	public boolean deleteResultWithOriginalId(
 			@RequestParam(value = "originalId", required = true) final String originalId,
 			@RequestParam(value = "collectedFromId", required = true) final String collectedFromId,
-			@RequestParam(value = "commit", required = false, defaultValue = "true") final boolean commit,
 			final HttpServletRequest req) throws DirectIndexApiException {
 
 		final String openaireId = solrRecordMapper.calculateOpenaireId(originalId, collectedFromId);

src/main/java/eu/dnetlib/app/directindex/mapping/SolrRecordMapper.java

@@ -192,7 +192,8 @@ public class SolrRecordMapper {
 		re.setContexts(contexts);
 
 		// @formatter:off
-		final List<String> projects = r.getLinks()
+		if (r.getLinks() != null) {
+			final List<String> projects = r.getLinks()
 				.stream()
 				.filter(l -> l.getHeader().getRelatedRecordType() == RecordType.project)
 				.map(p -> String.format("info:eu-repo/grantAgreement/%s/%s/%s/%s/%s/%s",
@@ -204,9 +205,10 @@ public class SolrRecordMapper {
 						StringUtils.defaultIfBlank(p.getAcronym(), "")))
 				.distinct()
 				.collect(Collectors.toList());
-		// @formatter:on
 
-		re.setLinksToProjects(projects);
+			re.setLinksToProjects(projects);
+		}
+		// @formatter:on
 
 		return re;
 	}

src/main/java/eu/dnetlib/app/directindex/service/DirectIndexService.java

@@ -3,6 +3,7 @@ package eu.dnetlib.app.directindex.service;
 import java.time.LocalDateTime;
 import java.util.LinkedHashMap;
 import java.util.Map;
+import java.util.Optional;
 
 import javax.transaction.Transactional;
 
@@ -31,6 +32,11 @@ public class DirectIndexService {
 	@Autowired
 	private DatasourceManagerClient dsmClient;
 
+	@Transactional
+	public Optional<PendingAction> findPendingAction(final String id) {
+		return pendingActionRepository.findById(id);
+	}
+
 	@Transactional
 	public void prepareMetadataDeletion(final String openaireId, final String createdBy) {
 		final PendingAction action = new PendingAction();
@@ -136,4 +142,5 @@ public class DirectIndexService {
 
 		return info;
 	}
+
 }