com.google.gerrit.server.notedb.ChangeDelete.java Source code

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Here is the source code for com.google.gerrit.server.notedb.ChangeDelete.java

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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.gerrit.server.PatchLineCommentsUtil;
import com.google.gwtorm.server.OrmException;

import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.RefUpdate;
import org.eclipse.jgit.lib.Repository;

import java.io.IOException;

public class ChangeDelete {
    private final PatchLineCommentsUtil plcUtil;
    private final Repository repo;
    private final ChangeNotes notes;

    public ChangeDelete(PatchLineCommentsUtil plcUtil, Repository repo, ChangeNotes notes) {
        this.plcUtil = plcUtil;
        this.repo = repo;
        this.notes = notes;
    }

    public void delete() throws OrmException, IOException {
        plcUtil.deleteAllDraftsFromAllUsers(notes.getChangeId());

        RefUpdate ru = repo.updateRef(notes.getRefName());
        ru.setExpectedOldObjectId(notes.load().getRevision());
        ru.setNewObjectId(ObjectId.zeroId());
        ru.setForceUpdate(true);
        ru.setRefLogMessage("Delete change from NoteDb", false);
        RefUpdate.Result result = ru.delete();
        switch (result) {
        case FAST_FORWARD:
        case FORCED:
        case NO_CHANGE:
            break;

        case IO_FAILURE:
        case LOCK_FAILURE:
        case NEW:
        case NOT_ATTEMPTED:
        case REJECTED:
        case REJECTED_CURRENT_BRANCH:
        case RENAMED:
        default:
            throw new IOException(String.format("Failed to delete change ref %s at %s: %s", notes.getRefName(),
                    notes.getRevision(), result));
        }
    }
}