com.google.gerrit.server.PatchSetUtil.java Source code

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Here is the source code for com.google.gerrit.server.PatchSetUtil.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;

import static com.google.common.base.Preconditions.checkArgument;
import static com.google.common.base.Preconditions.checkNotNull;
import static com.google.gerrit.server.notedb.PatchSetState.DRAFT;
import static com.google.gerrit.server.notedb.PatchSetState.PUBLISHED;

import com.google.common.collect.ImmutableCollection;
import com.google.common.collect.ImmutableMap;
import com.google.gerrit.reviewdb.client.Change;
import com.google.gerrit.reviewdb.client.PatchSet;
import com.google.gerrit.reviewdb.client.RevId;
import com.google.gerrit.reviewdb.server.ReviewDb;
import com.google.gerrit.server.notedb.ChangeNotes;
import com.google.gerrit.server.notedb.ChangeUpdate;
import com.google.gerrit.server.notedb.NotesMigration;
import com.google.gerrit.server.notedb.PatchSetState;
import com.google.gwtorm.server.OrmException;
import com.google.inject.Inject;
import com.google.inject.Singleton;

import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.revwalk.RevWalk;

import java.io.IOException;
import java.sql.Timestamp;
import java.util.Collections;
import java.util.List;

/** Utilities for manipulating patch sets. */
@Singleton
public class PatchSetUtil {
    private final NotesMigration migration;

    @Inject
    PatchSetUtil(NotesMigration migration) {
        this.migration = migration;
    }

    public PatchSet current(ReviewDb db, ChangeNotes notes) throws OrmException {
        return get(db, notes, notes.getChange().currentPatchSetId());
    }

    public PatchSet get(ReviewDb db, ChangeNotes notes, PatchSet.Id psId) throws OrmException {
        if (!migration.readChanges()) {
            return db.patchSets().get(psId);
        }
        return notes.load().getPatchSets().get(psId);
    }

    public ImmutableCollection<PatchSet> byChange(ReviewDb db, ChangeNotes notes) throws OrmException {
        if (!migration.readChanges()) {
            return ChangeUtil.PS_ID_ORDER.immutableSortedCopy(db.patchSets().byChange(notes.getChangeId()));
        }
        return notes.load().getPatchSets().values();
    }

    public ImmutableMap<PatchSet.Id, PatchSet> byChangeAsMap(ReviewDb db, ChangeNotes notes) throws OrmException {
        if (!migration.readChanges()) {
            ImmutableMap.Builder<PatchSet.Id, PatchSet> result = ImmutableMap.builder();
            for (PatchSet ps : ChangeUtil.PS_ID_ORDER.sortedCopy(db.patchSets().byChange(notes.getChangeId()))) {
                result.put(ps.getId(), ps);
            }
            return result.build();
        }
        return notes.load().getPatchSets();
    }

    public PatchSet insert(ReviewDb db, RevWalk rw, ChangeUpdate update, PatchSet.Id psId, ObjectId commit,
            boolean draft, List<String> groups, String pushCertificate) throws OrmException, IOException {
        checkNotNull(groups, "groups may not be null");
        ensurePatchSetMatches(psId, update);

        PatchSet ps = new PatchSet(psId);
        ps.setRevision(new RevId(commit.name()));
        ps.setUploader(update.getAccountId());
        ps.setCreatedOn(new Timestamp(update.getWhen().getTime()));
        ps.setDraft(draft);
        ps.setGroups(groups);
        ps.setPushCertificate(pushCertificate);
        db.patchSets().insert(Collections.singleton(ps));

        update.setCommit(rw, commit, pushCertificate);
        update.setGroups(groups);
        if (draft) {
            update.setPatchSetState(DRAFT);
        }

        return ps;
    }

    public void publish(ReviewDb db, ChangeUpdate update, PatchSet ps) throws OrmException {
        ensurePatchSetMatches(ps.getId(), update);
        ps.setDraft(false);
        update.setPatchSetState(PUBLISHED);
        db.patchSets().update(Collections.singleton(ps));
    }

    public void delete(ReviewDb db, ChangeUpdate update, PatchSet ps) throws OrmException {
        ensurePatchSetMatches(ps.getId(), update);
        checkArgument(ps.isDraft(), "cannot delete non-draft patch set %s", ps.getId());
        update.setPatchSetState(PatchSetState.DELETED);
        db.patchSets().delete(Collections.singleton(ps));
    }

    private void ensurePatchSetMatches(PatchSet.Id psId, ChangeUpdate update) {
        Change.Id changeId = update.getChange().getId();
        checkArgument(psId.getParentKey().equals(changeId), "cannot modify patch set %s on update for change %s",
                psId, changeId);
        if (update.getPatchSetId() != null) {
            checkArgument(update.getPatchSetId().equals(psId), "cannot modify patch set %s on update for %s", psId,
                    update.getPatchSetId());
        } else {
            update.setPatchSetId(psId);
        }
    }

    public void setGroups(ReviewDb db, ChangeUpdate update, PatchSet ps, List<String> groups) throws OrmException {
        ps.setGroups(groups);
        update.setGroups(groups);
        db.patchSets().update(Collections.singleton(ps));
    }
}