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// Copyright (C) 2018 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 static com.google.common.base.Preconditions.checkArgument;
import static com.google.common.collect.ImmutableList.toImmutableList;
import static com.google.gerrit.server.CommentsUtil.COMMENT_ORDER;
import static java.nio.charset.StandardCharsets.UTF_8;
import com.google.common.annotations.VisibleForTesting;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ListMultimap;
import com.google.gerrit.reviewdb.client.Account;
import com.google.gerrit.reviewdb.client.Comment;
import com.google.gerrit.server.GerritPersonIdent;
import com.google.gerrit.server.UsedAt;
import com.google.gerrit.server.config.GerritServerId;
import com.google.inject.Inject;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.sql.Timestamp;
import java.util.Date;
import java.util.List;
import org.eclipse.jgit.lib.PersonIdent;
import org.eclipse.jgit.util.QuotedString;
public class LegacyChangeNoteWrite {
private final PersonIdent serverIdent;
private final String serverId;
@Inject
public LegacyChangeNoteWrite(
@GerritPersonIdent PersonIdent serverIdent, @GerritServerId String serverId) {
this.serverIdent = serverIdent;
this.serverId = serverId;
}
public PersonIdent newIdent(Account.Id authorId, Date when, PersonIdent serverIdent) {
return new PersonIdent(
authorId.toString(), authorId.get() + "@" + serverId, when, serverIdent.getTimeZone());
}
@VisibleForTesting
public PersonIdent newIdent(Account author, Date when, PersonIdent serverIdent) {
return new PersonIdent(
author.toString(), author.getId().get() + "@" + serverId, when, serverIdent.getTimeZone());
}
public String getServerId() {
return serverId;
}
private void appendHeaderField(PrintWriter writer, String field, String value) {
writer.print(field);
writer.print(": ");
writer.print(value);
writer.print('\n');
}
/**
* Build a note that contains the metadata for and the contents of all of the comments in the
* given comments.
*
* @param comments Comments to be written to the output stream, keyed by patch set ID; multiple
* patch sets are allowed since base revisions may be shared across patch sets. All of the
* comments must share the same RevId, and all the comments for a given patch set must have
* the same side.
* @param out output stream to write to.
*/
@UsedAt(UsedAt.Project.GOOGLE)
public void buildNote(ListMultimap<Integer, Comment> comments, OutputStream out) {
if (comments.isEmpty()) {
return;
}
ImmutableList<Integer> psIds = comments.keySet().stream().sorted().collect(toImmutableList());
OutputStreamWriter streamWriter = new OutputStreamWriter(out, UTF_8);
try (PrintWriter writer = new PrintWriter(streamWriter)) {
String revId = comments.values().iterator().next().revId;
appendHeaderField(writer, ChangeNoteUtil.REVISION, revId);
for (int psId : psIds) {
List<Comment> psComments = COMMENT_ORDER.sortedCopy(comments.get(psId));
Comment first = psComments.get(0);
short side = first.side;
appendHeaderField(
writer,
side <= 0 ? ChangeNoteUtil.BASE_PATCH_SET : ChangeNoteUtil.PATCH_SET,
Integer.toString(psId));
if (side < 0) {
appendHeaderField(writer, ChangeNoteUtil.PARENT_NUMBER, Integer.toString(-side));
}
String currentFilename = null;
for (Comment c : psComments) {
checkArgument(
revId.equals(c.revId),
"All comments being added must have all the same RevId. The "
+ "comment below does not have the same RevId as the others "
+ "(%s).\n%s",
revId,
c);
checkArgument(
side == c.side,
"All comments being added must all have the same side. The "
+ "comment below does not have the same side as the others "
+ "(%s).\n%s",
side,
c);
String commentFilename = QuotedString.GIT_PATH.quote(c.key.filename);
if (!commentFilename.equals(currentFilename)) {
currentFilename = commentFilename;
writer.print("File: ");
writer.print(commentFilename);
writer.print("\n\n");
}
appendOneComment(writer, c);
}
}
}
}
private void appendOneComment(PrintWriter writer, Comment c) {
// The CommentRange field for a comment is allowed to be null. If it is
// null, then in the first line, we simply use the line number field for a
// comment instead. If it isn't null, we write the comment range itself.
Comment.Range range = c.range;
if (range != null) {
writer.print(range.startLine);
writer.print(':');
writer.print(range.startChar);
writer.print('-');
writer.print(range.endLine);
writer.print(':');
writer.print(range.endChar);
} else {
writer.print(c.lineNbr);
}
writer.print("\n");
writer.print(NoteDbUtil.formatTime(serverIdent, c.writtenOn));
writer.print("\n");
appendIdent(writer, ChangeNoteUtil.AUTHOR, c.author.getId(), c.writtenOn);
if (!c.getRealAuthor().equals(c.author)) {
appendIdent(writer, ChangeNoteUtil.REAL_AUTHOR, c.getRealAuthor().getId(), c.writtenOn);
}
String parent = c.parentUuid;
if (parent != null) {
appendHeaderField(writer, ChangeNoteUtil.PARENT, parent);
}
appendHeaderField(writer, ChangeNoteUtil.UNRESOLVED, Boolean.toString(c.unresolved));
appendHeaderField(writer, ChangeNoteUtil.UUID, c.key.uuid);
if (c.tag != null) {
appendHeaderField(writer, ChangeNoteUtil.TAG, c.tag);
}
byte[] messageBytes = c.message.getBytes(UTF_8);
appendHeaderField(writer, ChangeNoteUtil.LENGTH, Integer.toString(messageBytes.length));
writer.print(c.message);
writer.print("\n\n");
}
private void appendIdent(PrintWriter writer, String header, Account.Id id, Timestamp ts) {
PersonIdent ident = newIdent(id, ts, serverIdent);
StringBuilder name = new StringBuilder();
PersonIdent.appendSanitized(name, ident.getName());
name.append(" <");
PersonIdent.appendSanitized(name, ident.getEmailAddress());
name.append('>');
appendHeaderField(writer, header, name.toString());
}
}
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