com.google.gerrit.server.change.ListDrafts.java Source code

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Here is the source code for com.google.gerrit.server.change.ListDrafts.java

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// Copyright (C) 2012 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.change;

import static com.google.common.base.Objects.firstNonNull;

import com.google.common.collect.Lists;
import com.google.common.collect.Maps;
import com.google.gerrit.extensions.restapi.AuthException;
import com.google.gerrit.extensions.restapi.BadRequestException;
import com.google.gerrit.extensions.restapi.ResourceConflictException;
import com.google.gerrit.extensions.restapi.RestReadView;
import com.google.gerrit.reviewdb.client.PatchLineComment;
import com.google.gerrit.reviewdb.server.ReviewDb;
import com.google.gerrit.server.account.AccountInfo;
import com.google.gerrit.server.change.CommentInfo;
import com.google.gerrit.server.change.CommentInfo.Side;
import com.google.gwtorm.server.OrmException;
import com.google.inject.Inject;
import com.google.inject.Provider;

import java.util.Collections;
import java.util.Comparator;
import java.util.List;
import java.util.Map;

class ListDrafts implements RestReadView<RevisionResource> {
    protected final Provider<ReviewDb> db;
    private final AccountInfo.Loader.Factory accountLoaderFactory;

    @Inject
    ListDrafts(Provider<ReviewDb> db, AccountInfo.Loader.Factory alf) {
        this.db = db;
        this.accountLoaderFactory = alf;
    }

    protected Iterable<PatchLineComment> listComments(RevisionResource rsrc) throws OrmException {
        return db.get().patchComments().draftByPatchSetAuthor(rsrc.getPatchSet().getId(), rsrc.getAccountId());
    }

    protected boolean includeAuthorInfo() {
        return false;
    }

    @Override
    public Object apply(RevisionResource rsrc)
            throws AuthException, BadRequestException, ResourceConflictException, Exception {
        Map<String, List<CommentInfo>> out = Maps.newTreeMap();
        AccountInfo.Loader accountLoader = includeAuthorInfo() ? accountLoaderFactory.create(true) : null;
        for (PatchLineComment c : listComments(rsrc)) {
            CommentInfo o = new CommentInfo(c, accountLoader);
            List<CommentInfo> list = out.get(o.path);
            if (list == null) {
                list = Lists.newArrayList();
                out.put(o.path, list);
            }
            o.path = null;
            list.add(o);
        }
        for (List<CommentInfo> list : out.values()) {
            Collections.sort(list, new Comparator<CommentInfo>() {
                @Override
                public int compare(CommentInfo a, CommentInfo b) {
                    int c = firstNonNull(a.side, Side.REVISION).ordinal()
                            - firstNonNull(b.side, Side.REVISION).ordinal();
                    if (c == 0) {
                        c = firstNonNull(a.line, 0) - firstNonNull(b.line, 0);
                    }
                    if (c == 0) {
                        c = a.id.compareTo(b.id);
                    }
                    return c;
                }
            });
        }
        if (accountLoader != null) {
            accountLoader.fill();
        }
        return out;
    }
}