gerrit-server/src/main/java/com/google/gerrit/server/changedetail/PublishDraft.java

// Copyright (C) 2011 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.changedetail;

import com.google.common.util.concurrent.CheckedFuture;
import com.google.gerrit.common.ChangeHooks;
import com.google.gerrit.common.data.LabelTypes;
import com.google.gerrit.common.data.ReviewResult;
import com.google.gerrit.reviewdb.client.Change;
import com.google.gerrit.reviewdb.client.PatchSet;
import com.google.gerrit.reviewdb.server.ReviewDb;
import com.google.gerrit.server.ApprovalsUtil;
import com.google.gerrit.server.ChangeUtil;
import com.google.gerrit.server.IdentifiedUser;
import com.google.gerrit.server.account.AccountResolver;
import com.google.gerrit.server.git.GitRepositoryManager;
import com.google.gerrit.server.index.ChangeIndexer;
import com.google.gerrit.server.mail.CreateChangeSender;
import com.google.gerrit.server.mail.PatchSetNotificationSender;
import com.google.gerrit.server.mail.ReplacePatchSetSender;
import com.google.gerrit.server.patch.PatchSetInfoFactory;
import com.google.gerrit.server.patch.PatchSetInfoNotAvailableException;
import com.google.gerrit.server.project.ChangeControl;
import com.google.gerrit.server.project.NoSuchChangeException;
import com.google.gwtorm.server.AtomicUpdate;
import com.google.gwtorm.server.OrmException;
import com.google.inject.Inject;
import com.google.inject.assistedinject.Assisted;

import java.io.IOException;
import java.util.concurrent.Callable;

public class PublishDraft implements Callable<ReviewResult> {
  public interface Factory {
    PublishDraft create(PatchSet.Id patchSetId);
  }

  private final ChangeControl.Factory changeControlFactory;
  private final ReviewDb db;
  private final ChangeHooks hooks;
  private final ChangeIndexer indexer;
  private final PatchSetNotificationSender sender;

  private final PatchSet.Id patchSetId;

  @Inject
  PublishDraft(final ChangeControl.Factory changeControlFactory,
      final ReviewDb db, final ChangeHooks hooks,
      final GitRepositoryManager repoManager,
      final PatchSetInfoFactory patchSetInfoFactory,
      final ApprovalsUtil approvalsUtil,
      final AccountResolver accountResolver,
      final CreateChangeSender.Factory createChangeSenderFactory,
      final ReplacePatchSetSender.Factory replacePatchSetFactory,
      final ChangeIndexer indexer,
      final PatchSetNotificationSender sender,
      @Assisted final PatchSet.Id patchSetId) {
    this.changeControlFactory = changeControlFactory;
    this.db = db;
    this.hooks = hooks;
    this.indexer = indexer;
    this.sender = sender;

    this.patchSetId = patchSetId;
  }

  @Override
  public ReviewResult call() throws NoSuchChangeException, OrmException,
      IOException, PatchSetInfoNotAvailableException {
    final ReviewResult result = new ReviewResult();

    final Change.Id changeId = patchSetId.getParentKey();
    result.setChangeId(changeId);
    final ChangeControl control = changeControlFactory.validateFor(changeId);
    final LabelTypes labelTypes = control.getLabelTypes();
    final PatchSet patch = db.patchSets().get(patchSetId);
    if (patch == null) {
      throw new NoSuchChangeException(changeId);
    }
    if (!patch.isDraft()) {
      result.addError(new ReviewResult.Error(
          ReviewResult.Error.Type.NOT_A_DRAFT));
      return result;
    }

    if (!control.canPublish(db)) {
      result.addError(new ReviewResult.Error(
          ReviewResult.Error.Type.PUBLISH_NOT_PERMITTED));
    } else {
      final PatchSet updatedPatchSet = db.patchSets().atomicUpdate(patchSetId,
          new AtomicUpdate<PatchSet>() {
        @Override
        public PatchSet update(PatchSet patchset) {
          patchset.setDraft(false);
          return patchset;
        }
      });

      final Change updatedChange = db.changes().atomicUpdate(changeId,
          new AtomicUpdate<Change>() {
        @Override
        public Change update(Change change) {
          if (change.getStatus() == Change.Status.DRAFT) {
            change.setStatus(Change.Status.NEW);
            ChangeUtil.updated(change);
          }
          return change;
        }
      });

      if (!updatedPatchSet.isDraft() || updatedChange.getStatus() == Change.Status.NEW) {
        CheckedFuture<?, IOException> indexFuture = indexer.indexAsync(updatedChange);
        hooks.doDraftPublishedHook(updatedChange, updatedPatchSet, db);

        sender.send(control.getChange().getStatus() == Change.Status.DRAFT,
            (IdentifiedUser) control.getCurrentUser(), updatedChange, updatedPatchSet,
            labelTypes);
        indexFuture.checkedGet();
      }
    }

    return result;
  }
}