| // Copyright (C) 2017 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.schema; |
| |
| import com.google.common.collect.ImmutableList; |
| import com.google.gerrit.reviewdb.client.Account; |
| import com.google.gerrit.reviewdb.client.Change; |
| import com.google.gerrit.reviewdb.client.ChangeMessage; |
| import com.google.gerrit.reviewdb.client.PatchLineComment; |
| import com.google.gerrit.reviewdb.client.PatchSet; |
| import com.google.gerrit.reviewdb.client.PatchSetApproval; |
| import com.google.gerrit.reviewdb.server.ChangeAccess; |
| import com.google.gerrit.reviewdb.server.ChangeMessageAccess; |
| import com.google.gerrit.reviewdb.server.PatchLineCommentAccess; |
| import com.google.gerrit.reviewdb.server.PatchSetAccess; |
| import com.google.gerrit.reviewdb.server.PatchSetApprovalAccess; |
| import com.google.gerrit.reviewdb.server.ReviewDb; |
| import com.google.gwtorm.server.Access; |
| import com.google.gwtorm.server.ListResultSet; |
| import com.google.gwtorm.server.ResultSet; |
| import com.google.gwtorm.server.StatementExecutor; |
| |
| /** |
| * Wrapper for ReviewDb that never calls the underlying change tables. |
| * |
| * <p>See {@link NotesMigrationSchemaFactory} for discussion. |
| */ |
| class NoChangesReviewDb implements ReviewDb { |
| private static final String GONE = "ReviewDb is gone"; |
| |
| private static <T> ResultSet<T> empty() { |
| return new ListResultSet<>(ImmutableList.of()); |
| } |
| |
| private final ChangeAccess changes; |
| private final PatchSetApprovalAccess patchSetApprovals; |
| private final ChangeMessageAccess changeMessages; |
| private final PatchSetAccess patchSets; |
| private final PatchLineCommentAccess patchComments; |
| |
| NoChangesReviewDb() { |
| changes = new Changes(); |
| patchSetApprovals = new PatchSetApprovals(); |
| changeMessages = new ChangeMessages(); |
| patchSets = new PatchSets(); |
| patchComments = new PatchLineComments(); |
| } |
| |
| @Override |
| public ChangeAccess changes() { |
| return changes; |
| } |
| |
| @Override |
| public PatchSetApprovalAccess patchSetApprovals() { |
| return patchSetApprovals; |
| } |
| |
| @Override |
| public ChangeMessageAccess changeMessages() { |
| return changeMessages; |
| } |
| |
| @Override |
| public PatchSetAccess patchSets() { |
| return patchSets; |
| } |
| |
| @Override |
| public PatchLineCommentAccess patchComments() { |
| return patchComments; |
| } |
| |
| @Override |
| public int nextChangeId() { |
| throw new UnsupportedOperationException(GONE); |
| } |
| |
| @Override |
| public void commit() {} |
| |
| @Override |
| public void rollback() {} |
| |
| @Override |
| public void updateSchema(StatementExecutor e) { |
| throw new UnsupportedOperationException(GONE); |
| } |
| |
| @Override |
| public void pruneSchema(StatementExecutor e) { |
| throw new UnsupportedOperationException(GONE); |
| } |
| |
| @Override |
| public Access<?, ?>[] allRelations() { |
| throw new UnsupportedOperationException(GONE); |
| } |
| |
| @Override |
| public void close() {} |
| |
| private static class Changes extends AbstractDisabledAccess<Change, Change.Id> |
| implements ChangeAccess { |
| @Override |
| public ResultSet<Change> all() { |
| return empty(); |
| } |
| } |
| |
| private static class ChangeMessages |
| extends AbstractDisabledAccess<ChangeMessage, ChangeMessage.Key> |
| implements ChangeMessageAccess { |
| @Override |
| public ResultSet<ChangeMessage> byChange(Change.Id id) { |
| return empty(); |
| } |
| |
| @Override |
| public ResultSet<ChangeMessage> byPatchSet(PatchSet.Id id) { |
| return empty(); |
| } |
| |
| @Override |
| public ResultSet<ChangeMessage> all() { |
| return empty(); |
| } |
| } |
| |
| private static class PatchSets extends AbstractDisabledAccess<PatchSet, PatchSet.Id> |
| implements PatchSetAccess { |
| @Override |
| public ResultSet<PatchSet> byChange(Change.Id id) { |
| return empty(); |
| } |
| |
| @Override |
| public ResultSet<PatchSet> all() { |
| return empty(); |
| } |
| } |
| |
| private static class PatchSetApprovals |
| extends AbstractDisabledAccess<PatchSetApproval, PatchSetApproval.Key> |
| implements PatchSetApprovalAccess { |
| @Override |
| public ResultSet<PatchSetApproval> byChange(Change.Id id) { |
| return empty(); |
| } |
| |
| @Override |
| public ResultSet<PatchSetApproval> byPatchSet(PatchSet.Id id) { |
| return empty(); |
| } |
| |
| @Override |
| public ResultSet<PatchSetApproval> byPatchSetUser(PatchSet.Id patchSet, Account.Id account) { |
| return empty(); |
| } |
| |
| @Override |
| public ResultSet<PatchSetApproval> all() { |
| return empty(); |
| } |
| } |
| |
| private static class PatchLineComments |
| extends AbstractDisabledAccess<PatchLineComment, PatchLineComment.Key> |
| implements PatchLineCommentAccess { |
| @Override |
| public ResultSet<PatchLineComment> byChange(Change.Id id) { |
| return empty(); |
| } |
| |
| @Override |
| public ResultSet<PatchLineComment> byPatchSet(PatchSet.Id id) { |
| return empty(); |
| } |
| |
| @Override |
| public ResultSet<PatchLineComment> publishedByChangeFile(Change.Id id, String file) { |
| return empty(); |
| } |
| |
| @Override |
| public ResultSet<PatchLineComment> publishedByPatchSet(PatchSet.Id patchset) { |
| return empty(); |
| } |
| |
| @Override |
| public ResultSet<PatchLineComment> draftByPatchSetAuthor( |
| PatchSet.Id patchset, Account.Id author) { |
| return empty(); |
| } |
| |
| @Override |
| public ResultSet<PatchLineComment> draftByChangeFileAuthor( |
| Change.Id id, String file, Account.Id author) { |
| return empty(); |
| } |
| |
| @Override |
| public ResultSet<PatchLineComment> draftByAuthor(Account.Id author) { |
| return empty(); |
| } |
| |
| @Override |
| public ResultSet<PatchLineComment> all() { |
| return empty(); |
| } |
| } |
| } |