Enable parsing submit requirements results from change meta commits

This change enables parsing submit requirement results from NoteDb and
stores them in ChangeNotesState. Since instances of ChangeNotesState are
cached, we implement serializing submit requirement results to proto. A
test is added to ensure correct serialization. We also store the latest
patchset commit ID as a field in SubmitRequirementResult, since it's
needed later when submit requirements are stored in the change revision
notes.

Previously, The change meta ref contained published comments only. Since
now it can contain results of submit requirements, we rename
HumanCommentsRevisionNoteData to ChangeRevisionNoteData.

In the next change in this series, we'll implement storing submit
requirements in NoteDb when the change is merged.

Change-Id: I582c12eae8089d4a774125b86b914baa29773790
diff --git a/java/com/google/gerrit/entities/SubmitRequirementResult.java b/java/com/google/gerrit/entities/SubmitRequirementResult.java
index ed10f9e..e1d5f39 100644
--- a/java/com/google/gerrit/entities/SubmitRequirementResult.java
+++ b/java/com/google/gerrit/entities/SubmitRequirementResult.java
@@ -19,6 +19,7 @@
 import com.google.gson.Gson;
 import com.google.gson.TypeAdapter;
 import java.util.Optional;
+import org.eclipse.jgit.lib.ObjectId;
 
 /** Result of evaluating a {@link SubmitRequirement} on a given Change. */
 @AutoValue
@@ -37,6 +38,9 @@
   /** Result of evaluating a {@link SubmitRequirement#overrideExpression()} ()} on a change. */
   public abstract Optional<SubmitRequirementExpressionResult> overrideExpressionResult();
 
+  /** SHA-1 of the patchset commit ID for which the submit requirement was evaluated. */
+  public abstract ObjectId patchSetCommitId();
+
   @Memoized
   public Status status() {
     if (assertError(submittabilityExpressionResult())
@@ -103,6 +107,8 @@
     public abstract Builder overrideExpressionResult(
         Optional<SubmitRequirementExpressionResult> value);
 
+    public abstract Builder patchSetCommitId(ObjectId value);
+
     public abstract SubmitRequirementResult build();
   }
 
diff --git a/java/com/google/gerrit/server/cache/serialize/entities/SubmitRequirementExpressionResultSerializer.java b/java/com/google/gerrit/server/cache/serialize/entities/SubmitRequirementExpressionResultSerializer.java
new file mode 100644
index 0000000..4e997b4
--- /dev/null
+++ b/java/com/google/gerrit/server/cache/serialize/entities/SubmitRequirementExpressionResultSerializer.java
@@ -0,0 +1,45 @@
+// Copyright (C) 2021 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gerrit.server.cache.serialize.entities;
+
+import com.google.common.collect.ImmutableList;
+import com.google.gerrit.entities.SubmitRequirementExpression;
+import com.google.gerrit.entities.SubmitRequirementExpressionResult;
+import com.google.gerrit.server.cache.proto.Cache.SubmitRequirementExpressionResultProto;
+
+/**
+ * Serializer of a {@link SubmitRequirementExpressionResult} to {@link
+ * SubmitRequirementExpressionResultProto}.
+ */
+public class SubmitRequirementExpressionResultSerializer {
+  public static SubmitRequirementExpressionResult deserialize(
+      SubmitRequirementExpressionResultProto proto) {
+    return SubmitRequirementExpressionResult.create(
+        SubmitRequirementExpression.create(proto.getExpression()),
+        SubmitRequirementExpressionResult.Status.valueOf(proto.getStatus()),
+        proto.getPassingAtomsList().stream().collect(ImmutableList.toImmutableList()),
+        proto.getFailingAtomsList().stream().collect(ImmutableList.toImmutableList()));
+  }
+
+  public static SubmitRequirementExpressionResultProto serialize(
+      SubmitRequirementExpressionResult r) {
+    return SubmitRequirementExpressionResultProto.newBuilder()
+        .setExpression(r.expression().expressionString())
+        .setStatus(r.status().name())
+        .addAllPassingAtoms(r.passingAtoms())
+        .addAllFailingAtoms(r.failingAtoms())
+        .build();
+  }
+}
diff --git a/java/com/google/gerrit/server/notedb/ChangeNotesParser.java b/java/com/google/gerrit/server/notedb/ChangeNotesParser.java
index 8be0d82..2a53c29 100644
--- a/java/com/google/gerrit/server/notedb/ChangeNotesParser.java
+++ b/java/com/google/gerrit/server/notedb/ChangeNotesParser.java
@@ -68,6 +68,7 @@
 import com.google.gerrit.entities.PatchSetApproval;
 import com.google.gerrit.entities.RefNames;
 import com.google.gerrit.entities.SubmitRecord;
+import com.google.gerrit.entities.SubmitRequirementResult;
 import com.google.gerrit.metrics.Timer0;
 import com.google.gerrit.server.AssigneeStatusUpdate;
 import com.google.gerrit.server.ReviewerByEmailSet;
@@ -125,6 +126,7 @@
   private final List<AssigneeStatusUpdate> assigneeUpdates;
   private final List<SubmitRecord> submitRecords;
   private final ListMultimap<ObjectId, HumanComment> humanComments;
+  private final List<SubmitRequirementResult> submitRequirementResults;
   private final Map<PatchSet.Id, PatchSet.Builder> patchSets;
   private final Set<PatchSet.Id> deletedPatchSets;
   private final Map<PatchSet.Id, PatchSetState> patchSetStates;
@@ -187,6 +189,7 @@
     submitRecords = Lists.newArrayListWithExpectedSize(1);
     allChangeMessages = new ArrayList<>();
     humanComments = MultimapBuilder.hashKeys().arrayListValues().build();
+    submitRequirementResults = new ArrayList<>();
     patchSets = new HashMap<>();
     deletedPatchSets = new HashSet<>();
     patchSetStates = new HashMap<>();
@@ -259,6 +262,7 @@
         submitRecords,
         buildAllMessages(),
         humanComments,
+        submitRequirementResults,
         firstNonNull(isPrivate, false),
         firstNonNull(workInProgress, false),
         firstNonNull(hasReviewStarted, true),
@@ -774,6 +778,9 @@
       for (HumanComment c : e.getValue().getEntities()) {
         humanComments.put(e.getKey(), c);
       }
+      for (SubmitRequirementResult sr : e.getValue().getSubmitRequirementsResult()) {
+        submitRequirementResults.add(sr);
+      }
     }
 
     for (PatchSet.Builder b : patchSets.values()) {
diff --git a/java/com/google/gerrit/server/notedb/ChangeNotesState.java b/java/com/google/gerrit/server/notedb/ChangeNotesState.java
index 33bc039..e7da025 100644
--- a/java/com/google/gerrit/server/notedb/ChangeNotesState.java
+++ b/java/com/google/gerrit/server/notedb/ChangeNotesState.java
@@ -44,6 +44,7 @@
 import com.google.gerrit.entities.PatchSetApproval;
 import com.google.gerrit.entities.Project;
 import com.google.gerrit.entities.SubmitRecord;
+import com.google.gerrit.entities.SubmitRequirementResult;
 import com.google.gerrit.entities.converter.ChangeMessageProtoConverter;
 import com.google.gerrit.entities.converter.PatchSetApprovalProtoConverter;
 import com.google.gerrit.entities.converter.PatchSetProtoConverter;
@@ -60,10 +61,14 @@
 import com.google.gerrit.server.cache.proto.Cache.ChangeNotesStateProto.ReviewerByEmailSetEntryProto;
 import com.google.gerrit.server.cache.proto.Cache.ChangeNotesStateProto.ReviewerSetEntryProto;
 import com.google.gerrit.server.cache.proto.Cache.ChangeNotesStateProto.ReviewerStatusUpdateProto;
+import com.google.gerrit.server.cache.proto.Cache.SubmitRequirementResultProto;
 import com.google.gerrit.server.cache.serialize.CacheSerializer;
 import com.google.gerrit.server.cache.serialize.ObjectIdConverter;
+import com.google.gerrit.server.cache.serialize.entities.SubmitRequirementExpressionResultSerializer;
+import com.google.gerrit.server.cache.serialize.entities.SubmitRequirementSerializer;
 import com.google.gerrit.server.index.change.ChangeField.StoredSubmitRecord;
 import com.google.gson.Gson;
+import com.google.protobuf.Descriptors.FieldDescriptor;
 import java.sql.Timestamp;
 import java.time.Instant;
 import java.util.List;
@@ -128,6 +133,7 @@
       List<SubmitRecord> submitRecords,
       List<ChangeMessage> changeMessages,
       ListMultimap<ObjectId, HumanComment> publishedComments,
+      List<SubmitRequirementResult> submitRequirementResults,
       boolean isPrivate,
       boolean workInProgress,
       boolean reviewStarted,
@@ -181,6 +187,7 @@
         .submitRecords(submitRecords)
         .changeMessages(changeMessages)
         .publishedComments(publishedComments)
+        .submitRequirementsResult(submitRequirementResults)
         .updateCount(updateCount)
         .mergedOn(mergedOn)
         .build();
@@ -326,6 +333,8 @@
 
   abstract ImmutableListMultimap<ObjectId, HumanComment> publishedComments();
 
+  abstract ImmutableList<SubmitRequirementResult> submitRequirementsResult();
+
   abstract int updateCount();
 
   @Nullable
@@ -404,6 +413,7 @@
           .submitRecords(ImmutableList.of())
           .changeMessages(ImmutableList.of())
           .publishedComments(ImmutableListMultimap.of())
+          .submitRequirementsResult(ImmutableList.of())
           .updateCount(0);
     }
 
@@ -445,6 +455,9 @@
 
     abstract Builder publishedComments(ListMultimap<ObjectId, HumanComment> publishedComments);
 
+    abstract Builder submitRequirementsResult(
+        List<SubmitRequirementResult> submitRequirementsResult);
+
     abstract Builder updateCount(int updateCount);
 
     abstract Builder mergedOn(Timestamp mergedOn);
@@ -465,6 +478,11 @@
     private static final Converter<String, ReviewerStateInternal> REVIEWER_STATE_CONVERTER =
         Enums.stringConverter(ReviewerStateInternal.class);
 
+    private static final FieldDescriptor SR_APPLICABILITY_EXPR_RESULT_FIELD =
+        SubmitRequirementResultProto.getDescriptor().findFieldByNumber(2);
+    private static final FieldDescriptor SR_OVERRIDE_EXPR_RESULT_FIELD =
+        SubmitRequirementResultProto.getDescriptor().findFieldByNumber(4);
+
     @Override
     public byte[] serialize(ChangeNotesState object) {
       checkArgument(object.metaId() != null, "meta ID is required in: %s", object);
@@ -519,6 +537,9 @@
           .changeMessages()
           .forEach(m -> b.addChangeMessage(ChangeMessageProtoConverter.INSTANCE.toProto(m)));
       object.publishedComments().values().forEach(c -> b.addPublishedComment(GSON.toJson(c)));
+      object
+          .submitRequirementsResult()
+          .forEach(sr -> b.addSubmitRequirementResult(toSubmitRequirementResultProto(sr)));
       b.setUpdateCount(object.updateCount());
       if (object.mergedOn() != null) {
         b.setMergedOnMillis(object.mergedOn().getTime());
@@ -613,6 +634,53 @@
       return builder.build();
     }
 
+    private static SubmitRequirementResultProto toSubmitRequirementResultProto(
+        SubmitRequirementResult r) {
+      SubmitRequirementResultProto.Builder builder = SubmitRequirementResultProto.newBuilder();
+      builder
+          .setSubmitRequirement(SubmitRequirementSerializer.serialize(r.submitRequirement()))
+          .setCommit(ObjectIdConverter.create().toByteString(r.patchSetCommitId()));
+      if (r.applicabilityExpressionResult().isPresent()) {
+        builder.setApplicabilityExpressionResult(
+            SubmitRequirementExpressionResultSerializer.serialize(
+                r.applicabilityExpressionResult().get()));
+      }
+      builder.setSubmittabilityExpressionResult(
+          SubmitRequirementExpressionResultSerializer.serialize(
+              r.submittabilityExpressionResult()));
+      if (r.overrideExpressionResult().isPresent()) {
+        builder.setOverrideExpressionResult(
+            SubmitRequirementExpressionResultSerializer.serialize(
+                r.overrideExpressionResult().get()));
+      }
+      return builder.build();
+    }
+
+    private static SubmitRequirementResult toSubmitRequirementResult(
+        SubmitRequirementResultProto proto) {
+      SubmitRequirementResult.Builder builder =
+          SubmitRequirementResult.builder()
+              .patchSetCommitId(ObjectIdConverter.create().fromByteString(proto.getCommit()))
+              .submitRequirement(
+                  SubmitRequirementSerializer.deserialize(proto.getSubmitRequirement()));
+      if (proto.hasField(SR_APPLICABILITY_EXPR_RESULT_FIELD)) {
+        builder.applicabilityExpressionResult(
+            Optional.of(
+                SubmitRequirementExpressionResultSerializer.deserialize(
+                    proto.getApplicabilityExpressionResult())));
+      }
+      builder.submittabilityExpressionResult(
+          SubmitRequirementExpressionResultSerializer.deserialize(
+              proto.getSubmittabilityExpressionResult()));
+      if (proto.hasField(SR_OVERRIDE_EXPR_RESULT_FIELD)) {
+        builder.overrideExpressionResult(
+            Optional.of(
+                SubmitRequirementExpressionResultSerializer.deserialize(
+                    proto.getOverrideExpressionResult())));
+      }
+      return builder.build();
+    }
+
     @Override
     public ChangeNotesState deserialize(byte[] in) {
       ChangeNotesStateProto proto = Protos.parseUnchecked(ChangeNotesStateProto.parser(), in);
@@ -658,6 +726,10 @@
                   proto.getPublishedCommentList().stream()
                       .map(r -> GSON.fromJson(r, HumanComment.class))
                       .collect(toImmutableListMultimap(HumanComment::getCommitId, c -> c)))
+              .submitRequirementsResult(
+                  proto.getSubmitRequirementResultList().stream()
+                      .map(sr -> toSubmitRequirementResult(sr))
+                      .collect(toImmutableList()))
               .updateCount(proto.getUpdateCount())
               .mergedOn(proto.getHasMergedOn() ? new Timestamp(proto.getMergedOnMillis()) : null);
       return b.build();
diff --git a/java/com/google/gerrit/server/notedb/ChangeRevisionNote.java b/java/com/google/gerrit/server/notedb/ChangeRevisionNote.java
index bf2cf07..44475db 100644
--- a/java/com/google/gerrit/server/notedb/ChangeRevisionNote.java
+++ b/java/com/google/gerrit/server/notedb/ChangeRevisionNote.java
@@ -16,7 +16,9 @@
 
 import static java.nio.charset.StandardCharsets.UTF_8;
 
+import com.google.common.collect.ImmutableList;
 import com.google.gerrit.entities.HumanComment;
+import com.google.gerrit.entities.SubmitRequirementResult;
 import java.io.ByteArrayInputStream;
 import java.io.IOException;
 import java.io.InputStream;
@@ -34,6 +36,8 @@
   private final HumanComment.Status status;
   private String pushCert;
 
+  private ImmutableList<SubmitRequirementResult> submitRequirementsResult;
+
   ChangeRevisionNote(
       ChangeNoteJson noteJson, ObjectReader reader, ObjectId noteId, HumanComment.Status status) {
     super(reader, noteId);
@@ -41,6 +45,11 @@
     this.status = status;
   }
 
+  public ImmutableList<SubmitRequirementResult> getSubmitRequirementsResult() {
+    checkParsed();
+    return submitRequirementsResult;
+  }
+
   public String getPushCert() {
     checkParsed();
     return pushCert;
@@ -52,20 +61,24 @@
     MutableInteger p = new MutableInteger();
     p.value = offset;
 
-    HumanCommentsRevisionNoteData data = parseJson(noteJson, raw, p.value);
+    ChangeRevisionNoteData data = parseJson(noteJson, raw, p.value);
     if (status == HumanComment.Status.PUBLISHED) {
       pushCert = data.pushCert;
     } else {
       pushCert = null;
     }
+    this.submitRequirementsResult =
+        data.submitRequirementResults == null
+            ? ImmutableList.of()
+            : ImmutableList.copyOf(data.submitRequirementResults);
     return data.comments;
   }
 
-  private HumanCommentsRevisionNoteData parseJson(ChangeNoteJson noteUtil, byte[] raw, int offset)
+  private ChangeRevisionNoteData parseJson(ChangeNoteJson noteUtil, byte[] raw, int offset)
       throws IOException {
     try (InputStream is = new ByteArrayInputStream(raw, offset, raw.length - offset);
         Reader r = new InputStreamReader(is, UTF_8)) {
-      return noteUtil.getGson().fromJson(r, HumanCommentsRevisionNoteData.class);
+      return noteUtil.getGson().fromJson(r, ChangeRevisionNoteData.class);
     }
   }
 }
diff --git a/java/com/google/gerrit/server/notedb/HumanCommentsRevisionNoteData.java b/java/com/google/gerrit/server/notedb/ChangeRevisionNoteData.java
similarity index 78%
rename from java/com/google/gerrit/server/notedb/HumanCommentsRevisionNoteData.java
rename to java/com/google/gerrit/server/notedb/ChangeRevisionNoteData.java
index e570412..8e33023 100644
--- a/java/com/google/gerrit/server/notedb/HumanCommentsRevisionNoteData.java
+++ b/java/com/google/gerrit/server/notedb/ChangeRevisionNoteData.java
@@ -15,14 +15,17 @@
 package com.google.gerrit.server.notedb;
 
 import com.google.gerrit.entities.HumanComment;
+import com.google.gerrit.entities.SubmitRequirementResult;
 import java.util.List;
 
 /**
  * Holds the raw data of a RevisionNote.
  *
- * <p>It is intended for deserialization from JSON only. It is used for human comments only.
+ * <p>It is intended for deserialization from JSON only. It is used for human comments. Submit
+ * requirements are also stored but only for closed changes.
  */
-class HumanCommentsRevisionNoteData {
+class ChangeRevisionNoteData {
   String pushCert;
   List<HumanComment> comments;
+  List<SubmitRequirementResult> submitRequirementResults;
 }
diff --git a/java/com/google/gerrit/server/project/SubmitRequirementsEvaluator.java b/java/com/google/gerrit/server/project/SubmitRequirementsEvaluator.java
index e6d7a7e0..65d9d9e 100644
--- a/java/com/google/gerrit/server/project/SubmitRequirementsEvaluator.java
+++ b/java/com/google/gerrit/server/project/SubmitRequirementsEvaluator.java
@@ -67,6 +67,7 @@
 
     return SubmitRequirementResult.builder()
         .submitRequirement(sr)
+        .patchSetCommitId(cd.currentPatchSet().commitId())
         .submittabilityExpressionResult(blockingResult)
         .applicabilityExpressionResult(applicabilityResult)
         .overrideExpressionResult(overrideResult)
diff --git a/javatests/com/google/gerrit/server/notedb/ChangeNotesStateTest.java b/javatests/com/google/gerrit/server/notedb/ChangeNotesStateTest.java
index feff89c..ecdb03d 100644
--- a/javatests/com/google/gerrit/server/notedb/ChangeNotesStateTest.java
+++ b/javatests/com/google/gerrit/server/notedb/ChangeNotesStateTest.java
@@ -36,6 +36,10 @@
 import com.google.gerrit.entities.PatchSet;
 import com.google.gerrit.entities.PatchSetApproval;
 import com.google.gerrit.entities.SubmitRecord;
+import com.google.gerrit.entities.SubmitRequirement;
+import com.google.gerrit.entities.SubmitRequirementExpression;
+import com.google.gerrit.entities.SubmitRequirementExpressionResult;
+import com.google.gerrit.entities.SubmitRequirementResult;
 import com.google.gerrit.entities.converter.ChangeMessageProtoConverter;
 import com.google.gerrit.entities.converter.PatchSetApprovalProtoConverter;
 import com.google.gerrit.entities.converter.PatchSetProtoConverter;
@@ -52,6 +56,9 @@
 import com.google.gerrit.server.cache.proto.Cache.ChangeNotesStateProto.ReviewerByEmailSetEntryProto;
 import com.google.gerrit.server.cache.proto.Cache.ChangeNotesStateProto.ReviewerSetEntryProto;
 import com.google.gerrit.server.cache.proto.Cache.ChangeNotesStateProto.ReviewerStatusUpdateProto;
+import com.google.gerrit.server.cache.proto.Cache.SubmitRequirementExpressionResultProto;
+import com.google.gerrit.server.cache.proto.Cache.SubmitRequirementProto;
+import com.google.gerrit.server.cache.proto.Cache.SubmitRequirementResultProto;
 import com.google.gerrit.server.cache.serialize.ObjectIdConverter;
 import com.google.gerrit.server.notedb.ChangeNotesState.ChangeColumns;
 import com.google.gerrit.server.notedb.ChangeNotesState.Serializer;
@@ -671,6 +678,69 @@
   }
 
   @Test
+  public void serializeSubmitRequirementsResult() throws Exception {
+    assertRoundTrip(
+        newBuilder()
+            .submitRequirementsResult(
+                ImmutableList.of(
+                    SubmitRequirementResult.builder()
+                        .patchSetCommitId(
+                            ObjectId.fromString("26e50c7d315a33a13e5cc00902781fa876bc36cd"))
+                        .submitRequirement(
+                            SubmitRequirement.builder()
+                                .setName("Code-Review")
+                                .setApplicabilityExpression(
+                                    SubmitRequirementExpression.of("project:foo"))
+                                .setSubmittabilityExpression(
+                                    SubmitRequirementExpression.create("label:code-review=+2"))
+                                .setAllowOverrideInChildProjects(false)
+                                .build())
+                        .applicabilityExpressionResult(
+                            Optional.of(
+                                SubmitRequirementExpressionResult.create(
+                                    SubmitRequirementExpression.create("project:foo"),
+                                    SubmitRequirementExpressionResult.Status.PASS,
+                                    ImmutableList.of("project:foo"),
+                                    ImmutableList.of())))
+                        .submittabilityExpressionResult(
+                            SubmitRequirementExpressionResult.create(
+                                SubmitRequirementExpression.create("label:code-review=+2"),
+                                SubmitRequirementExpressionResult.Status.FAIL,
+                                ImmutableList.of(),
+                                ImmutableList.of("label:code-review=+2")))
+                        .build()))
+            .build(),
+        newProtoBuilder()
+            .addSubmitRequirementResult(
+                SubmitRequirementResultProto.newBuilder()
+                    .setCommit(
+                        ObjectIdConverter.create()
+                            .toByteString(
+                                ObjectId.fromString("26e50c7d315a33a13e5cc00902781fa876bc36cd")))
+                    .setSubmitRequirement(
+                        SubmitRequirementProto.newBuilder()
+                            .setName("Code-Review")
+                            .setApplicabilityExpression("project:foo")
+                            .setSubmittabilityExpression("label:code-review=+2")
+                            .setAllowOverrideInChildProjects(false)
+                            .build())
+                    .setApplicabilityExpressionResult(
+                        SubmitRequirementExpressionResultProto.newBuilder()
+                            .setExpression("project:foo")
+                            .setStatus("PASS")
+                            .addPassingAtoms("project:foo")
+                            .build())
+                    .setSubmittabilityExpressionResult(
+                        SubmitRequirementExpressionResultProto.newBuilder()
+                            .setExpression("label:code-review=+2")
+                            .setStatus("FAIL")
+                            .addFailingAtoms("label:code-review=+2")
+                            .build())
+                    .build())
+            .build());
+  }
+
+  @Test
   public void serializeAssigneeUpdates() throws Exception {
     assertRoundTrip(
         newBuilder()
@@ -842,6 +912,9 @@
                 .put(
                     "publishedComments",
                     new TypeLiteral<ImmutableListMultimap<ObjectId, HumanComment>>() {}.getType())
+                .put(
+                    "submitRequirementsResult",
+                    new TypeLiteral<ImmutableList<SubmitRequirementResult>>() {}.getType())
                 .put("updateCount", int.class)
                 .put("mergedOn", Timestamp.class)
                 .build());
diff --git a/proto/cache.proto b/proto/cache.proto
index 781538a..aa04555 100644
--- a/proto/cache.proto
+++ b/proto/cache.proto
@@ -78,7 +78,7 @@
 // Instead, we just take the tedious yet simple approach of having a "has_foo"
 // field for each nullable field "foo", indicating whether or not foo is null.
 //
-// Next ID: 27
+// Next ID: 28
 message ChangeNotesStateProto {
   // Effectively required, even though the corresponding ChangeNotesState field
   // is optional, since the field is only absent when NoteDb is disabled, in
@@ -226,6 +226,8 @@
   // Epoch millis.
   int64 merged_on_millis = 25;
   bool has_merged_on = 26;
+
+  repeated SubmitRequirementResultProto submit_requirement_result = 27;
 }
 
 // Serialized form of com.google.gerrit.server.query.change.ConflictKey
@@ -480,6 +482,28 @@
   bool allow_override_in_child_projects = 6;
 }
 
+// Serialized form of com.google.gerrit.entities.SubmitRequirementResult.
+// Next ID: 6
+message SubmitRequirementResultProto {
+  SubmitRequirementProto submit_requirement = 1;
+  SubmitRequirementExpressionResultProto applicability_expression_result = 2;
+  SubmitRequirementExpressionResultProto submittability_expression_result = 3;
+  SubmitRequirementExpressionResultProto override_expression_result = 4;
+
+  // Patchset commit ID at which the submit requirements are evaluated.
+  bytes commit = 5;
+}
+
+// Serialized form of com.google.gerrit.entities.SubmitRequirementExpressionResult.
+// Next ID: 6
+message SubmitRequirementExpressionResultProto {
+  string expression = 1;
+  string status = 2; // enum as string
+  string error_message = 3;
+  repeated string passing_atoms = 4;
+  repeated string failing_atoms = 5;
+}
+
 // Serialized form of com.google.gerrit.server.project.ConfiguredMimeTypes.
 // Next ID: 4
 message ConfiguredMimeTypeProto {