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// Copyright (C) 2015 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.restapi.change;
import static java.util.stream.Collectors.toList;
import com.google.common.collect.ImmutableList;
import com.google.gerrit.entities.ChangeMessage;
import com.google.gerrit.entities.HumanComment;
import com.google.gerrit.extensions.common.CommentInfo;
import com.google.gerrit.extensions.common.ContextLineInfo;
import com.google.gerrit.extensions.restapi.AuthException;
import com.google.gerrit.extensions.restapi.Response;
import com.google.gerrit.extensions.restapi.RestReadView;
import com.google.gerrit.server.ChangeMessagesUtil;
import com.google.gerrit.server.CommentsUtil;
import com.google.gerrit.server.change.ChangeResource;
import com.google.gerrit.server.permissions.PermissionBackendException;
import com.google.gerrit.server.query.change.ChangeData;
import com.google.inject.Inject;
import com.google.inject.Provider;
import java.util.List;
import java.util.Map;
import org.kohsuke.args4j.Option;
public class ListChangeComments implements RestReadView<ChangeResource> {
private final ChangeMessagesUtil changeMessagesUtil;
private final ChangeData.Factory changeDataFactory;
private final Provider<CommentJson> commentJson;
private final CommentsUtil commentsUtil;
private boolean includeContext;
private int contextPadding;
/**
* Optional parameter. If set, the contextLines field of the {@link ContextLineInfo} of the
* response will contain the lines of the source file where the comment was written.
*
* @param context If true, comment context will be attached to the response
*/
@Option(name = "--enable-context")
public void setContext(boolean context) {
this.includeContext = context;
}
/**
* Optional parameter. Works only if {@link #includeContext} is set to true. If {@link
* #contextPadding} is set, the context lines in the response will be padded with {@link
* #contextPadding} extra lines before and after the comment range.
*/
@Option(name = "--context-padding")
public void setContextPadding(int contextPadding) {
this.contextPadding = contextPadding;
}
@Inject
ListChangeComments(
ChangeData.Factory changeDataFactory,
Provider<CommentJson> commentJson,
CommentsUtil commentsUtil,
ChangeMessagesUtil changeMessagesUtil) {
this.changeDataFactory = changeDataFactory;
this.commentJson = commentJson;
this.commentsUtil = commentsUtil;
this.changeMessagesUtil = changeMessagesUtil;
}
@Override
public Response<Map<String, List<CommentInfo>>> apply(ChangeResource rsrc)
throws AuthException, PermissionBackendException {
return Response.ok(getAsMap(listComments(rsrc), rsrc));
}
public List<CommentInfo> getComments(ChangeResource rsrc) throws PermissionBackendException {
return getAsList(listComments(rsrc), rsrc);
}
private Iterable<HumanComment> listComments(ChangeResource rsrc) {
ChangeData cd = changeDataFactory.create(rsrc.getNotes());
return commentsUtil.publishedHumanCommentsByChange(cd.notes());
}
private ImmutableList<CommentInfo> getAsList(Iterable<HumanComment> comments, ChangeResource rsrc)
throws PermissionBackendException {
ImmutableList<CommentInfo> commentInfos = getCommentFormatter(rsrc).formatAsList(comments);
List<ChangeMessage> changeMessages = changeMessagesUtil.byChange(rsrc.getNotes());
CommentsUtil.linkCommentsToChangeMessages(commentInfos, changeMessages, true);
return commentInfos;
}
private Map<String, List<CommentInfo>> getAsMap(
Iterable<HumanComment> comments, ChangeResource rsrc) throws PermissionBackendException {
Map<String, List<CommentInfo>> commentInfosMap = getCommentFormatter(rsrc).format(comments);
List<CommentInfo> commentInfos =
commentInfosMap.values().stream().flatMap(List::stream).collect(toList());
List<ChangeMessage> changeMessages = changeMessagesUtil.byChange(rsrc.getNotes());
CommentsUtil.linkCommentsToChangeMessages(commentInfos, changeMessages, true);
return commentInfosMap;
}
private CommentJson.HumanCommentFormatter getCommentFormatter(ChangeResource rsrc) {
return commentJson
.get()
.setFillAccounts(true)
.setFillPatchSet(true)
.setFillCommentContext(includeContext)
.setContextPadding(contextPadding)
.setProjectKey(rsrc.getProject())
.setChangeId(rsrc.getId())
.newHumanCommentFormatter();
}
}