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// Copyright (C) 2016 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.notedb;
import com.google.common.annotations.VisibleForTesting;
import com.google.gerrit.reviewdb.client.Change;
import com.google.gerrit.reviewdb.client.Change.Id;
import com.google.gerrit.reviewdb.client.Project;
import com.google.gerrit.reviewdb.server.ReviewDb;
import com.google.gerrit.server.notedb.NoteDbUpdateManager.Result;
import com.google.gerrit.server.notedb.rebuild.ChangeRebuilder;
import com.google.gerrit.server.notedb.rebuild.ChangeRebuilderImpl;
import com.google.gwtorm.server.OrmException;
import com.google.gwtorm.server.SchemaFactory;
import com.google.inject.Inject;
import com.google.inject.Singleton;
import java.io.IOException;
import java.util.concurrent.atomic.AtomicBoolean;
@VisibleForTesting
@Singleton
public class TestChangeRebuilderWrapper extends ChangeRebuilder {
private final ChangeRebuilderImpl delegate;
private final AtomicBoolean failNextUpdate;
private final AtomicBoolean stealNextUpdate;
@Inject
TestChangeRebuilderWrapper(SchemaFactory<ReviewDb> schemaFactory, ChangeRebuilderImpl rebuilder) {
super(schemaFactory);
this.delegate = rebuilder;
this.failNextUpdate = new AtomicBoolean();
this.stealNextUpdate = new AtomicBoolean();
}
public void failNextUpdate() {
failNextUpdate.set(true);
}
public void stealNextUpdate() {
stealNextUpdate.set(true);
}
@Override
public Result rebuild(ReviewDb db, Change.Id changeId) throws IOException, OrmException {
return rebuild(db, changeId, true);
}
@Override
public Result rebuildEvenIfReadOnly(ReviewDb db, Change.Id changeId)
throws IOException, OrmException {
return rebuild(db, changeId, false);
}
private Result rebuild(ReviewDb db, Change.Id changeId, boolean checkReadOnly)
throws IOException, OrmException {
if (failNextUpdate.getAndSet(false)) {
throw new IOException("Update failed");
}
Result result =
checkReadOnly
? delegate.rebuild(db, changeId)
: delegate.rebuildEvenIfReadOnly(db, changeId);
if (stealNextUpdate.getAndSet(false)) {
throw new IOException("Update stolen");
}
return result;
}
@Override
public Result rebuild(NoteDbUpdateManager manager, ChangeBundle bundle)
throws IOException, OrmException {
// stealNextUpdate doesn't really apply in this case because the IOException
// would normally come from the manager.execute() method, which isn't called
// here.
return delegate.rebuild(manager, bundle);
}
@Override
public NoteDbUpdateManager stage(ReviewDb db, Change.Id changeId)
throws IOException, OrmException {
// Don't inspect stealNextUpdate; that happens in execute() below.
return delegate.stage(db, changeId);
}
@Override
public Result execute(ReviewDb db, Change.Id changeId, NoteDbUpdateManager manager)
throws OrmException, IOException {
if (failNextUpdate.getAndSet(false)) {
throw new IOException("Update failed");
}
Result result = delegate.execute(db, changeId, manager);
if (stealNextUpdate.getAndSet(false)) {
throw new IOException("Update stolen");
}
return result;
}
@Override
public void buildUpdates(NoteDbUpdateManager manager, ChangeBundle bundle)
throws IOException, OrmException {
// Don't check for manual failure; that happens in execute().
delegate.buildUpdates(manager, bundle);
}
@Override
public void rebuildReviewDb(ReviewDb db, Project.NameKey project, Id changeId)
throws OrmException {
if (failNextUpdate.getAndSet(false)) {
throw new OrmException("Update failed");
}
delegate.rebuildReviewDb(db, project, changeId);
}
}
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