1 files changed, 0 insertions, 216 deletions
diff --git a/gerrit-server/src/main/java/com/google/gerrit/server/change/ChangeResource.java b/gerrit-server/src/main/java/com/google/gerrit/server/change/ChangeResource.java
deleted file mode 100644
index 8c70ad8015..0000000000
--- a/gerrit-server/src/main/java/com/google/gerrit/server/change/ChangeResource.java
+++ /dev/null
@@ -1,216 +0,0 @@
-// Copyright (C) 2012 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.change;
-
-import static java.nio.charset.StandardCharsets.UTF_8;
-
-import com.google.common.base.MoreObjects;
-import com.google.common.collect.ImmutableList;
-import com.google.common.hash.Hasher;
-import com.google.common.hash.Hashing;
-import com.google.gerrit.extensions.restapi.RestResource;
-import com.google.gerrit.extensions.restapi.RestResource.HasETag;
-import com.google.gerrit.extensions.restapi.RestView;
-import com.google.gerrit.reviewdb.client.Account;
-import com.google.gerrit.reviewdb.client.AccountGroup;
-import com.google.gerrit.reviewdb.client.Change;
-import com.google.gerrit.reviewdb.client.Project;
-import com.google.gerrit.reviewdb.server.ReviewDb;
-import com.google.gerrit.server.ApprovalsUtil;
-import com.google.gerrit.server.CurrentUser;
-import com.google.gerrit.server.PatchSetUtil;
-import com.google.gerrit.server.StarredChangesUtil;
-import com.google.gerrit.server.account.AccountCache;
-import com.google.gerrit.server.account.AccountState;
-import com.google.gerrit.server.notedb.ChangeNotes;
-import com.google.gerrit.server.permissions.PermissionBackend;
-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.Provider;
-import com.google.inject.TypeLiteral;
-import com.google.inject.assistedinject.Assisted;
-import java.io.IOException;
-import java.util.HashSet;
-import java.util.Set;
-import org.eclipse.jgit.lib.ObjectId;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-public class ChangeResource implements RestResource, HasETag {
-  private static final Logger log = LoggerFactory.getLogger(ChangeResource.class);
-
-  /**
-   * JSON format version number for ETag computations.
-   *
-   * <p>Should be bumped on any JSON format change (new fields, etc.) so that otherwise unmodified
-   * changes get new ETags.
-   */
-  public static final int JSON_FORMAT_VERSION = 1;
-
-  public static final TypeLiteral<RestView<ChangeResource>> CHANGE_KIND =
-      new TypeLiteral<RestView<ChangeResource>>() {};
-
-  public interface Factory {
-    ChangeResource create(ChangeNotes notes, CurrentUser user);
-  }
-
-  private static final String ZERO_ID_STRING = ObjectId.zeroId().name();
-
-  private final Provider<ReviewDb> db;
-  private final AccountCache accountCache;
-  private final ApprovalsUtil approvalUtil;
-  private final PatchSetUtil patchSetUtil;
-  private final PermissionBackend permissionBackend;
-  private final StarredChangesUtil starredChangesUtil;
-  private final ProjectCache projectCache;
-  private final ChangeNotes notes;
-  private final CurrentUser user;
-
-  @Inject
-  ChangeResource(
-      Provider<ReviewDb> db,
-      AccountCache accountCache,
-      ApprovalsUtil approvalUtil,
-      PatchSetUtil patchSetUtil,
-      PermissionBackend permissionBackend,
-      StarredChangesUtil starredChangesUtil,
-      ProjectCache projectCache,
-      @Assisted ChangeNotes notes,
-      @Assisted CurrentUser user) {
-    this.db = db;
-    this.accountCache = accountCache;
-    this.approvalUtil = approvalUtil;
-    this.patchSetUtil = patchSetUtil;
-    this.permissionBackend = permissionBackend;
-    this.starredChangesUtil = starredChangesUtil;
-    this.projectCache = projectCache;
-    this.notes = notes;
-    this.user = user;
-  }
-
-  public PermissionBackend.ForChange permissions() {
-    return permissionBackend.user(user).change(notes);
-  }
-
-  public CurrentUser getUser() {
-    return user;
-  }
-
-  public Change.Id getId() {
-    return notes.getChangeId();
-  }
-
-  /** @return true if {@link #getUser()} is the change's owner. */
-  public boolean isUserOwner() {
-    Account.Id owner = getChange().getOwner();
-    return user.isIdentifiedUser() && user.asIdentifiedUser().getAccountId().equals(owner);
-  }
-
-  public Change getChange() {
-    return notes.getChange();
-  }
-
-  public Project.NameKey getProject() {
-    return getChange().getProject();
-  }
-
-  public ChangeNotes getNotes() {
-    return notes;
-  }
-
-  // This includes all information relevant for ETag computation
-  // unrelated to the UI.
-  public void prepareETag(Hasher h, CurrentUser user) {
-    h.putInt(JSON_FORMAT_VERSION)
-        .putLong(getChange().getLastUpdatedOn().getTime())
-        .putInt(getChange().getRowVersion())
-        .putInt(user.isIdentifiedUser() ? user.getAccountId().get() : 0);
-
-    if (user.isIdentifiedUser()) {
-      for (AccountGroup.UUID uuid : user.getEffectiveGroups().getKnownGroups()) {
-        h.putBytes(uuid.get().getBytes(UTF_8));
-      }
-    }
-
-    byte[] buf = new byte[20];
-    Set<Account.Id> accounts = new HashSet<>();
-    accounts.add(getChange().getOwner());
-    if (getChange().getAssignee() != null) {
-      accounts.add(getChange().getAssignee());
-    }
-    try {
-      patchSetUtil.byChange(db.get(), notes).stream()
-          .map(ps -> ps.getUploader())
-          .forEach(accounts::add);
-
-      // It's intentional to include the states for *all* reviewers into the ETag computation.
-      // We need the states of all current reviewers and CCs because they are part of ChangeInfo.
-      // Including removed reviewers is a cheap way of making sure that the states of accounts that
-      // posted a message on the change are included. Loading all change messages to find the exact
-      // set of accounts that posted a message is too expensive. However everyone who posts a
-      // message is automatically added as reviewer. Hence if we include removed reviewers we can
-      // be sure that we have all accounts that posted messages on the change.
-      accounts.addAll(approvalUtil.getReviewers(db.get(), notes).all());
-    } catch (OrmException e) {
-      // This ETag will be invalidated if it loads next time.
-    }
-    accounts.stream().forEach(a -> hashAccount(h, accountCache.get(a), buf));
-
-    ObjectId noteId;
-    try {
-      noteId = notes.loadRevision();
-    } catch (OrmException e) {
-      noteId = null; // This ETag will be invalidated if it loads next time.
-    }
-    hashObjectId(h, noteId, buf);
-    // TODO(dborowitz): Include more NoteDb and other related refs, e.g. drafts
-    // and edits.
-
-    Iterable<ProjectState> projectStateTree;
-    try {
-      projectStateTree = projectCache.checkedGet(getProject()).tree();
-    } catch (IOException e) {
-      log.error("could not load project {} while computing etag", getProject());
-      projectStateTree = ImmutableList.of();
-    }
-
-    for (ProjectState p : projectStateTree) {
-      hashObjectId(h, p.getConfig().getRevision(), buf);
-    }
-  }
-
-  @Override
-  public String getETag() {
-    Hasher h = Hashing.murmur3_128().newHasher();
-    if (user.isIdentifiedUser()) {
-      h.putString(starredChangesUtil.getObjectId(user.getAccountId(), getId()).name(), UTF_8);
-    }
-    prepareETag(h, user);
-    return h.hash().toString();
-  }
-
-  private void hashObjectId(Hasher h, ObjectId id, byte[] buf) {
-    MoreObjects.firstNonNull(id, ObjectId.zeroId()).copyRawTo(buf, 0);
-    h.putBytes(buf);
-  }
-
-  private void hashAccount(Hasher h, AccountState accountState, byte[] buf) {
-    h.putString(
-        MoreObjects.firstNonNull(accountState.getAccount().getMetaId(), ZERO_ID_STRING), UTF_8);
-    accountState.getExternalIds().stream().forEach(e -> hashObjectId(h, e.blobId(), buf));
-  }
-}