Remove ProjectControl from the group stack

This is a step towards using PermissionBackend everywheren and make
ProjectControl package-private.

Change-Id: Ic9f9392c446382b227abb506c0f0ae292c08963b

gerrit-server/src/main/java/com/google/gerrit/server/ReviewersUtil.java

@@ -111,7 +111,7 @@ public class ReviewersUtil {
   private final AccountQueryBuilder accountQueryBuilder;
   private final Provider<AccountQueryProcessor> queryProvider;
   private final GroupBackend groupBackend;
-  private final GroupMembers.Factory groupMembersFactory;
+  private final GroupMembers groupMembers;
   private final Provider<CurrentUser> currentUser;
   private final ReviewerRecommender reviewerRecommender;
   private final Metrics metrics;
@@ -122,7 +122,7 @@ public class ReviewersUtil {
       AccountQueryBuilder accountQueryBuilder,
       Provider<AccountQueryProcessor> queryProvider,
       GroupBackend groupBackend,
-      GroupMembers.Factory groupMembersFactory,
+      GroupMembers groupMembers,
       Provider<CurrentUser> currentUser,
       ReviewerRecommender reviewerRecommender,
       Metrics metrics) {
@@ -133,7 +133,7 @@ public class ReviewersUtil {
     this.queryProvider = queryProvider;
     this.currentUser = currentUser;
     this.groupBackend = groupBackend;
-    this.groupMembersFactory = groupMembersFactory;
+    this.groupMembers = groupMembers;
     this.reviewerRecommender = reviewerRecommender;
     this.metrics = metrics;
   }
@@ -303,10 +303,7 @@ public class ReviewersUtil {
     }
 
     try {
-      Set<Account> members =
-          groupMembersFactory
-              .create(currentUser.get())
-              .listAccounts(group.getUUID(), project.getNameKey());
+      Set<Account> members = groupMembers.listAccounts(group.getUUID(), project.getNameKey());
 
       if (members.isEmpty()) {
         return result;

gerrit-server/src/main/java/com/google/gerrit/server/account/GroupMembers.java

@@ -21,15 +21,14 @@ import com.google.gerrit.common.errors.NoSuchGroupException;
 import com.google.gerrit.reviewdb.client.Account;
 import com.google.gerrit.reviewdb.client.AccountGroup;
 import com.google.gerrit.reviewdb.client.Project;
-import com.google.gerrit.server.CurrentUser;
 import com.google.gerrit.server.group.InternalGroup;
 import com.google.gerrit.server.group.InternalGroupDescription;
 import com.google.gerrit.server.group.SystemGroupBackend;
 import com.google.gerrit.server.project.NoSuchProjectException;
-import com.google.gerrit.server.project.ProjectControl;
+import com.google.gerrit.server.project.ProjectCache;
+import com.google.gerrit.server.project.ProjectState;
 import com.google.gwtorm.server.OrmException;
 import com.google.inject.Inject;
-import com.google.inject.assistedinject.Assisted;
 import java.io.IOException;
 import java.util.Collections;
 import java.util.HashSet;
@@ -37,28 +36,22 @@ import java.util.Optional;
 import java.util.Set;
 
 public class GroupMembers {
-  public interface Factory {
-    GroupMembers create(CurrentUser currentUser);
-  }
 
   private final GroupCache groupCache;
   private final GroupControl.Factory groupControlFactory;
   private final AccountCache accountCache;
-  private final ProjectControl.GenericFactory projectControl;
-  private final CurrentUser currentUser;
+  private final ProjectCache projectCache;
 
   @Inject
   GroupMembers(
       GroupCache groupCache,
       GroupControl.Factory groupControlFactory,
       AccountCache accountCache,
-      ProjectControl.GenericFactory projectControl,
-      @Assisted CurrentUser currentUser) {
+      ProjectCache projectCache) {
     this.groupCache = groupCache;
     this.groupControlFactory = groupControlFactory;
     this.accountCache = accountCache;
-    this.projectControl = projectControl;
-    this.currentUser = currentUser;
+    this.projectCache = projectCache;
   }
 
   public Set<Account> listAccounts(AccountGroup.UUID groupUUID, Project.NameKey project)
@@ -88,11 +81,13 @@ public class GroupMembers {
       return Collections.emptySet();
     }
 
-    final Iterable<AccountGroup.UUID> ownerGroups =
-        projectControl.controlFor(project, currentUser).getProjectState().getAllOwners();
+    ProjectState projectState = projectCache.checkedGet(project);
+    if (projectState == null) {
+      throw new NoSuchProjectException(project);
+    }
 
     final HashSet<Account> projectOwners = new HashSet<>();
-    for (AccountGroup.UUID ownerGroup : ownerGroups) {
+    for (AccountGroup.UUID ownerGroup : projectState.getAllOwners()) {
       if (!seen.contains(ownerGroup)) {
         projectOwners.addAll(listAccounts(ownerGroup, project, seen));
       }

gerrit-server/src/main/java/com/google/gerrit/server/api/groups/GroupsImpl.java

@@ -34,7 +34,6 @@ import com.google.gerrit.server.group.ListGroups;
 import com.google.gerrit.server.group.QueryGroups;
 import com.google.gerrit.server.permissions.GlobalPermission;
 import com.google.gerrit.server.permissions.PermissionBackend;
-import com.google.gerrit.server.project.ProjectControl;
 import com.google.gerrit.server.project.ProjectResource;
 import com.google.gerrit.server.project.ProjectsCollection;
 import com.google.inject.Inject;
@@ -54,7 +53,6 @@ class GroupsImpl implements Groups {
   private final PermissionBackend permissionBackend;
   private final CreateGroup.Factory createGroup;
   private final GroupApiImpl.Factory api;
-  private final ProjectControl.GenericFactory projectControlFactory;
 
   @Inject
   GroupsImpl(
@@ -66,8 +64,7 @@ class GroupsImpl implements Groups {
       Provider<CurrentUser> user,
       PermissionBackend permissionBackend,
       CreateGroup.Factory createGroup,
-      GroupApiImpl.Factory api,
-      ProjectControl.GenericFactory projectControlFactory) {
+      GroupApiImpl.Factory api) {
     this.accounts = accounts;
     this.groups = groups;
     this.projects = projects;
@@ -77,7 +74,6 @@ class GroupsImpl implements Groups {
     this.permissionBackend = permissionBackend;
     this.createGroup = createGroup;
     this.api = api;
-    this.projectControlFactory = projectControlFactory;
   }
 
   @Override
@@ -125,7 +121,7 @@ class GroupsImpl implements Groups {
     for (String project : req.getProjects()) {
       try {
         ProjectResource rsrc = projects.parse(tlr, IdString.fromDecoded(project));
-        list.addProject(projectControlFactory.controlFor(rsrc.getNameKey(), rsrc.getUser()));
+        list.addProject(rsrc.getProjectState());
       } catch (Exception e) {
         throw asRestApiException("Error looking up project " + project, e);
       }

gerrit-server/src/main/java/com/google/gerrit/server/change/PostReviewers.java

@@ -91,7 +91,7 @@ public class PostReviewers
   private final PermissionBackend permissionBackend;
 
   private final GroupsCollection groupsCollection;
-  private final GroupMembers.Factory groupMembersFactory;
+  private final GroupMembers groupMembers;
   private final AccountLoader.Factory accountLoaderFactory;
   private final Provider<ReviewDb> dbProvider;
   private final ChangeData.Factory changeDataFactory;
@@ -111,7 +111,7 @@ public class PostReviewers
       ReviewerResource.Factory reviewerFactory,
       PermissionBackend permissionBackend,
       GroupsCollection groupsCollection,
-      GroupMembers.Factory groupMembersFactory,
+      GroupMembers groupMembers,
       AccountLoader.Factory accountLoaderFactory,
       Provider<ReviewDb> db,
       ChangeData.Factory changeDataFactory,
@@ -130,7 +130,7 @@ public class PostReviewers
     this.reviewerFactory = reviewerFactory;
     this.permissionBackend = permissionBackend;
     this.groupsCollection = groupsCollection;
-    this.groupMembersFactory = groupMembersFactory;
+    this.groupMembers = groupMembers;
     this.accountLoaderFactory = accountLoaderFactory;
     this.dbProvider = db;
     this.changeDataFactory = changeDataFactory;
@@ -287,10 +287,7 @@ public class PostReviewers
     Set<Account.Id> reviewers = new HashSet<>();
     Set<Account> members;
     try {
-      members =
-          groupMembersFactory
-              .create(rsrc.getUser())
-              .listAccounts(group.getGroupUUID(), rsrc.getProject());
+      members = groupMembers.listAccounts(group.getGroupUUID(), rsrc.getProject());
     } catch (NoSuchGroupException e) {
       return fail(
           reviewer,

gerrit-server/src/main/java/com/google/gerrit/server/config/GerritGlobalModule.java

@@ -91,7 +91,6 @@ import com.google.gerrit.server.account.EmailExpander;
 import com.google.gerrit.server.account.GroupCacheImpl;
 import com.google.gerrit.server.account.GroupControl;
 import com.google.gerrit.server.account.GroupIncludeCacheImpl;
-import com.google.gerrit.server.account.GroupMembers;
 import com.google.gerrit.server.account.VersionedAuthorizedKeys;
 import com.google.gerrit.server.account.externalids.ExternalIdModule;
 import com.google.gerrit.server.api.accounts.AccountExternalIdCreator;
@@ -250,7 +249,6 @@ public class GerritGlobalModule extends FactoryModule {
     factory(ChangeData.AssistedFactory.class);
     factory(ChangeJson.AssistedFactory.class);
     factory(CreateChangeSender.Factory.class);
-    factory(GroupMembers.Factory.class);
     factory(EmailMerge.Factory.class);
     factory(MergedSender.Factory.class);
     factory(MergeUtil.Factory.class);

gerrit-server/src/main/java/com/google/gerrit/server/group/ListGroups.java

@@ -67,7 +67,7 @@ public class ListGroups implements RestReadView<TopLevelResource> {
 
   protected final GroupCache groupCache;
 
-  private final List<ProjectControl> projects = new ArrayList<>();
+  private final List<ProjectState> projects = new ArrayList<>();
   private final Set<AccountGroup.UUID> groupsToInspect = new HashSet<>();
   private final GroupControl.Factory groupControlFactory;
   private final GroupControl.GenericFactory genericGroupControlFactory;
@@ -95,6 +95,10 @@ public class ListGroups implements RestReadView<TopLevelResource> {
     usage = "projects for which the groups should be listed"
   )
   public void addProject(ProjectControl project) {
+    addProject(project.getProjectState());
+  }
+
+  public void addProject(ProjectState project) {
     projects.add(project);
   }
 
@@ -241,7 +245,7 @@ public class ListGroups implements RestReadView<TopLevelResource> {
     return user;
   }
 
-  public List<ProjectControl> getProjects() {
+  public List<ProjectState> getProjects() {
     return projects;
   }
 
@@ -298,7 +302,6 @@ public class ListGroups implements RestReadView<TopLevelResource> {
     if (!projects.isEmpty()) {
       return projects
           .stream()
-          .map(ProjectControl::getProjectState)
           .map(ProjectState::getAllGroups)
           .flatMap(Collection::stream)
           .map(GroupReference::getUUID)
@@ -318,9 +321,7 @@ public class ListGroups implements RestReadView<TopLevelResource> {
     List<GroupReference> groupRefs =
         Lists.newArrayList(
             Iterables.limit(
-                groupBackend.suggest(
-                    suggest,
-                    projects.stream().findFirst().map(pc -> pc.getProjectState()).orElse(null)),
+                groupBackend.suggest(suggest, projects.stream().findFirst().orElse(null)),
                 limit <= 0 ? 10 : Math.min(limit, 10)));
 
     List<GroupInfo> groupInfos = Lists.newArrayListWithCapacity(groupRefs.size());