feat: avoid computation failure if an error occurs in post run treatment

Signed-off-by: Joris Mancini <joris.mancini_externe@rte-france.com>

src/main/java/com/powsybl/ws/commons/computation/service/AbstractWorkerService.java

@@ -224,7 +224,13 @@ protected R run(C runContext, UUID resultUuid, AtomicReference<ReportNode> rootR
         preRun(runContext);
         CompletableFuture<R> future = runAsync(runContext, provider, resultUuid);
         R result = future == null ? null : observer.observeRun("run", runContext, future::get);
-        postRun(runContext, rootReporter, result);
+        try {
+            postRun(runContext, rootReporter, result);
+        } catch (Exception e) {
+            // As the exception occurs after a successful run of the computation we don't want the whole computation to fail
+            // Then we just log the error
+            LOGGER.error("An error occurred after computation run", e);
+        }
         return result;
     }
 
@@ -236,7 +242,11 @@ protected R run(C runContext, UUID resultUuid, AtomicReference<ReportNode> rootR
      */
     protected void postRun(C runContext, AtomicReference<ReportNode> rootReportNode, R ignoredResult) {
         if (runContext.getReportInfos().reportUuid() != null) {
-            observer.observe("report.send", runContext, () -> reportService.sendReport(runContext.getReportInfos().reportUuid(), rootReportNode.get()));
+            try {
+                observer.observe("report.send", runContext, () -> reportService.sendReport(runContext.getReportInfos().reportUuid(), rootReportNode.get()));
+            } catch (Exception e) {
+                throw new PostRunException("An error occurred while sending reports", e);
+            }
         }
     }
 

src/main/java/com/powsybl/ws/commons/computation/service/PostRunException.java

@@ -0,0 +1,7 @@
+package com.powsybl.ws.commons.computation.service;
+
+public class PostRunException extends RuntimeException {
+    public PostRunException(String message, Throwable cause) {
+        super(message, cause);
+    }
+}

src/main/java/com/powsybl/ws/commons/computation/service/ReportService.java

@@ -60,12 +60,13 @@ public void sendReport(UUID reportUuid, ReportNode reportNode) {
         var headers = new HttpHeaders();
         headers.setContentType(MediaType.APPLICATION_JSON);
 
+        String str;
         try {
-            String str = objectMapper.writeValueAsString(reportNode);
-            restTemplate.exchange(getReportServerURI() + path, HttpMethod.PUT, new HttpEntity<>(str, headers), ReportNode.class);
+            str = objectMapper.writeValueAsString(reportNode);
         } catch (JsonProcessingException error) {
-            throw new PowsyblException("Error sending report", error);
+            throw new PowsyblException("Impossible to serialize ReportNode", error);
         }
+        restTemplate.exchange(getReportServerURI() + path, HttpMethod.PUT, new HttpEntity<>(str, headers), ReportNode.class);
     }
 
     public void deleteReport(UUID reportUuid) {