com.google.gerrit.server.index.change.ChangeField Maven / Gradle / Ivy
// Copyright (C) 2013 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.index.change;
import static com.google.common.base.MoreObjects.firstNonNull;
import static com.google.common.base.Preconditions.checkArgument;
import static com.google.gerrit.server.index.FieldDef.exact;
import static com.google.gerrit.server.index.FieldDef.fullText;
import static com.google.gerrit.server.index.FieldDef.intRange;
import static com.google.gerrit.server.index.FieldDef.integer;
import static com.google.gerrit.server.index.FieldDef.prefix;
import static com.google.gerrit.server.index.FieldDef.storedOnly;
import static com.google.gerrit.server.index.FieldDef.timestamp;
import static java.nio.charset.StandardCharsets.UTF_8;
import static java.util.stream.Collectors.toList;
import static java.util.stream.Collectors.toSet;
import com.google.common.annotations.VisibleForTesting;
import com.google.common.base.Splitter;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.ImmutableTable;
import com.google.common.collect.Iterables;
import com.google.common.collect.Lists;
import com.google.common.collect.Sets;
import com.google.common.collect.Table;
import com.google.gerrit.common.data.SubmitRecord;
import com.google.gerrit.reviewdb.client.Account;
import com.google.gerrit.reviewdb.client.Change;
import com.google.gerrit.reviewdb.client.ChangeMessage;
import com.google.gerrit.reviewdb.client.Comment;
import com.google.gerrit.reviewdb.client.PatchSet;
import com.google.gerrit.reviewdb.client.PatchSetApproval;
import com.google.gerrit.reviewdb.client.Project;
import com.google.gerrit.reviewdb.client.RefNames;
import com.google.gerrit.server.OutputFormat;
import com.google.gerrit.server.ReviewerSet;
import com.google.gerrit.server.StarredChangesUtil;
import com.google.gerrit.server.index.FieldDef;
import com.google.gerrit.server.index.FieldDef.FillArgs;
import com.google.gerrit.server.index.SchemaUtil;
import com.google.gerrit.server.index.change.StalenessChecker.RefState;
import com.google.gerrit.server.index.change.StalenessChecker.RefStatePattern;
import com.google.gerrit.server.notedb.ChangeNotes;
import com.google.gerrit.server.notedb.NoteDbChangeState.PrimaryStorage;
import com.google.gerrit.server.notedb.ReviewerStateInternal;
import com.google.gerrit.server.notedb.RobotCommentNotes;
import com.google.gerrit.server.project.SubmitRuleOptions;
import com.google.gerrit.server.query.change.ChangeData;
import com.google.gerrit.server.query.change.ChangeQueryBuilder;
import com.google.gerrit.server.query.change.ChangeStatusPredicate;
import com.google.gson.Gson;
import com.google.gwtorm.protobuf.CodecFactory;
import com.google.gwtorm.protobuf.ProtobufCodec;
import com.google.gwtorm.server.OrmException;
import com.google.protobuf.CodedOutputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.sql.Timestamp;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.function.Function;
import org.eclipse.jgit.revwalk.FooterLine;
/**
* Fields indexed on change documents.
*
* Each field corresponds to both a field name supported by {@link ChangeQueryBuilder} for
* querying that field, and a method on {@link ChangeData} used for populating the corresponding
* document fields in the secondary index.
*
*
Field names are all lowercase alphanumeric plus underscore; index implementations may create
* unambiguous derived field names containing other characters.
*/
public class ChangeField {
public static final int NO_ASSIGNEE = -1;
private static final Gson GSON = OutputFormat.JSON_COMPACT.newGson();
/** Legacy change ID. */
public static final FieldDef LEGACY_ID =
integer("legacy_id").stored().build(cd -> cd.getId().get());
/** Newer style Change-Id key. */
public static final FieldDef ID =
prefix(ChangeQueryBuilder.FIELD_CHANGE_ID).build(changeGetter(c -> c.getKey().get()));
/** Change status string, in the same format as {@code status:}. */
public static final FieldDef STATUS =
exact(ChangeQueryBuilder.FIELD_STATUS)
.build(changeGetter(c -> ChangeStatusPredicate.canonicalize(c.getStatus())));
/** Project containing the change. */
public static final FieldDef PROJECT =
exact(ChangeQueryBuilder.FIELD_PROJECT)
.stored()
.build(changeGetter(c -> c.getProject().get()));
/** Project containing the change, as a prefix field. */
public static final FieldDef PROJECTS =
prefix(ChangeQueryBuilder.FIELD_PROJECTS).build(changeGetter(c -> c.getProject().get()));
/** Reference (aka branch) the change will submit onto. */
public static final FieldDef REF =
exact(ChangeQueryBuilder.FIELD_REF).build(changeGetter(c -> c.getDest().get()));
/** Topic, a short annotation on the branch. */
public static final FieldDef EXACT_TOPIC =
exact("topic4").build(ChangeField::getTopic);
/** Topic, a short annotation on the branch. */
public static final FieldDef FUZZY_TOPIC =
fullText("topic5").build(ChangeField::getTopic);
/** Submission id assigned by MergeOp. */
public static final FieldDef SUBMISSIONID =
exact(ChangeQueryBuilder.FIELD_SUBMISSIONID).build(changeGetter(Change::getSubmissionId));
/** Last update time since January 1, 1970. */
public static final FieldDef UPDATED =
timestamp("updated2").stored().build(changeGetter(Change::getLastUpdatedOn));
/** List of full file paths modified in the current patch set. */
public static final FieldDef> PATH =
// Named for backwards compatibility.
exact(ChangeQueryBuilder.FIELD_FILE)
.buildRepeatable(cd -> firstNonNull(cd.currentFilePaths(), ImmutableList.of()));
public static Set getFileParts(ChangeData cd) throws OrmException {
List paths = cd.currentFilePaths();
if (paths == null) {
return ImmutableSet.of();
}
Splitter s = Splitter.on('/').omitEmptyStrings();
Set r = new HashSet<>();
for (String path : paths) {
for (String part : s.split(path)) {
r.add(part);
}
}
return r;
}
/** Hashtags tied to a change */
public static final FieldDef> HASHTAG =
exact(ChangeQueryBuilder.FIELD_HASHTAG)
.buildRepeatable(cd -> cd.hashtags().stream().map(String::toLowerCase).collect(toSet()));
/** Hashtags with original case. */
public static final FieldDef> HASHTAG_CASE_AWARE =
storedOnly("_hashtag")
.buildRepeatable(
cd -> cd.hashtags().stream().map(t -> t.getBytes(UTF_8)).collect(toSet()));
/** Components of each file path modified in the current patch set. */
public static final FieldDef> FILE_PART =
exact(ChangeQueryBuilder.FIELD_FILEPART).buildRepeatable(ChangeField::getFileParts);
/** Owner/creator of the change. */
public static final FieldDef OWNER =
integer(ChangeQueryBuilder.FIELD_OWNER).build(changeGetter(c -> c.getOwner().get()));
/** The user assigned to the change. */
public static final FieldDef ASSIGNEE =
integer(ChangeQueryBuilder.FIELD_ASSIGNEE)
.build(changeGetter(c -> c.getAssignee() != null ? c.getAssignee().get() : NO_ASSIGNEE));
/** Reviewer(s) associated with the change. */
public static final FieldDef> REVIEWER =
exact("reviewer2").stored().buildRepeatable(cd -> getReviewerFieldValues(cd.reviewers()));
@VisibleForTesting
static List getReviewerFieldValues(ReviewerSet reviewers) {
List r = new ArrayList<>(reviewers.asTable().size() * 2);
for (Table.Cell c :
reviewers.asTable().cellSet()) {
String v = getReviewerFieldValue(c.getRowKey(), c.getColumnKey());
r.add(v);
r.add(v + ',' + c.getValue().getTime());
}
return r;
}
public static String getReviewerFieldValue(ReviewerStateInternal state, Account.Id id) {
return state.toString() + ',' + id;
}
public static ReviewerSet parseReviewerFieldValues(Iterable values) {
ImmutableTable.Builder b =
ImmutableTable.builder();
for (String v : values) {
int f = v.indexOf(',');
if (f < 0) {
continue;
}
int l = v.lastIndexOf(',');
if (l == f) {
continue;
}
b.put(
ReviewerStateInternal.valueOf(v.substring(0, f)),
Account.Id.parse(v.substring(f + 1, l)),
new Timestamp(Long.valueOf(v.substring(l + 1, v.length()))));
}
return ReviewerSet.fromTable(b.build());
}
/** Commit ID of any patch set on the change, using prefix match. */
public static final FieldDef> COMMIT =
prefix(ChangeQueryBuilder.FIELD_COMMIT).buildRepeatable(ChangeField::getRevisions);
/** Commit ID of any patch set on the change, using exact match. */
public static final FieldDef> EXACT_COMMIT =
exact(ChangeQueryBuilder.FIELD_EXACTCOMMIT).buildRepeatable(ChangeField::getRevisions);
private static Set getRevisions(ChangeData cd) throws OrmException {
Set revisions = new HashSet<>();
for (PatchSet ps : cd.patchSets()) {
if (ps.getRevision() != null) {
revisions.add(ps.getRevision().get());
}
}
return revisions;
}
/** Tracking id extracted from a footer. */
public static final FieldDef> TR =
exact(ChangeQueryBuilder.FIELD_TR)
.buildRepeatable(
(ChangeData cd, FillArgs a) -> {
List footers = cd.commitFooters();
if (footers == null) {
return ImmutableSet.of();
}
return Sets.newHashSet(a.trackingFooters.extract(footers).values());
});
/** List of labels on the current patch set. */
@Deprecated
public static final FieldDef> LABEL =
exact(ChangeQueryBuilder.FIELD_LABEL).buildRepeatable(cd -> getLabels(cd, false));
/** List of labels on the current patch set including change owner votes. */
public static final FieldDef> LABEL2 =
exact("label2").buildRepeatable(cd -> getLabels(cd, true));
private static Iterable getLabels(ChangeData cd, boolean owners) throws OrmException {
Set allApprovals = new HashSet<>();
Set distinctApprovals = new HashSet<>();
for (PatchSetApproval a : cd.currentApprovals()) {
if (a.getValue() != 0 && !a.isLegacySubmit()) {
allApprovals.add(formatLabel(a.getLabel(), a.getValue(), a.getAccountId()));
if (owners && cd.change().getOwner().equals(a.getAccountId())) {
allApprovals.add(
formatLabel(a.getLabel(), a.getValue(), ChangeQueryBuilder.OWNER_ACCOUNT_ID));
}
distinctApprovals.add(formatLabel(a.getLabel(), a.getValue()));
}
}
allApprovals.addAll(distinctApprovals);
return allApprovals;
}
public static Set getAuthorParts(ChangeData cd) throws OrmException, IOException {
return SchemaUtil.getPersonParts(cd.getAuthor());
}
public static Set getCommitterParts(ChangeData cd) throws OrmException, IOException {
return SchemaUtil.getPersonParts(cd.getCommitter());
}
/**
* The exact email address, or any part of the author name or email address, in the current patch
* set.
*/
public static final FieldDef> AUTHOR =
fullText(ChangeQueryBuilder.FIELD_AUTHOR).buildRepeatable(ChangeField::getAuthorParts);
/**
* The exact email address, or any part of the committer name or email address, in the current
* patch set.
*/
public static final FieldDef> COMMITTER =
fullText(ChangeQueryBuilder.FIELD_COMMITTER).buildRepeatable(ChangeField::getCommitterParts);
public static final ProtobufCodec CHANGE_CODEC = CodecFactory.encoder(Change.class);
/** Serialized change object, used for pre-populating results. */
public static final FieldDef CHANGE =
storedOnly("_change").build(changeGetter(CHANGE_CODEC::encodeToByteArray));
public static final ProtobufCodec APPROVAL_CODEC =
CodecFactory.encoder(PatchSetApproval.class);
/** Serialized approvals for the current patch set, used for pre-populating results. */
public static final FieldDef> APPROVAL =
storedOnly("_approval")
.buildRepeatable(cd -> toProtos(APPROVAL_CODEC, cd.currentApprovals()));
public static String formatLabel(String label, int value) {
return formatLabel(label, value, null);
}
public static String formatLabel(String label, int value, Account.Id accountId) {
return label.toLowerCase()
+ (value >= 0 ? "+" : "")
+ value
+ (accountId != null ? "," + formatAccount(accountId) : "");
}
private static String formatAccount(Account.Id accountId) {
if (ChangeQueryBuilder.OWNER_ACCOUNT_ID.equals(accountId)) {
return ChangeQueryBuilder.ARG_ID_OWNER;
}
return Integer.toString(accountId.get());
}
/** Commit message of the current patch set. */
public static final FieldDef COMMIT_MESSAGE =
fullText(ChangeQueryBuilder.FIELD_MESSAGE).build(ChangeData::commitMessage);
/** Summary or inline comment. */
public static final FieldDef> COMMENT =
fullText(ChangeQueryBuilder.FIELD_COMMENT)
.buildRepeatable(
cd -> {
Set r = new HashSet<>();
for (Comment c : cd.publishedComments()) {
r.add(c.message);
}
for (ChangeMessage m : cd.messages()) {
r.add(m.getMessage());
}
return r;
});
/** Number of unresolved comments of the change. */
public static final FieldDef UNRESOLVED_COMMENT_COUNT =
intRange(ChangeQueryBuilder.FIELD_UNRESOLVED_COMMENT_COUNT)
.stored()
.build(ChangeData::unresolvedCommentCount);
/** Whether the change is mergeable. */
public static final FieldDef MERGEABLE =
exact(ChangeQueryBuilder.FIELD_MERGEABLE)
.stored()
.build(
cd -> {
Boolean m = cd.isMergeable();
if (m == null) {
return null;
}
return m ? "1" : "0";
});
/** The number of inserted lines in this change. */
public static final FieldDef ADDED =
intRange(ChangeQueryBuilder.FIELD_ADDED)
.stored()
.build(cd -> cd.changedLines().isPresent() ? cd.changedLines().get().insertions : null);
/** The number of deleted lines in this change. */
public static final FieldDef DELETED =
intRange(ChangeQueryBuilder.FIELD_DELETED)
.stored()
.build(cd -> cd.changedLines().isPresent() ? cd.changedLines().get().deletions : null);
/** The total number of modified lines in this change. */
public static final FieldDef DELTA =
intRange(ChangeQueryBuilder.FIELD_DELTA)
.build(cd -> cd.changedLines().map(c -> c.insertions + c.deletions).orElse(null));
/** Users who have commented on this change. */
public static final FieldDef> COMMENTBY =
integer(ChangeQueryBuilder.FIELD_COMMENTBY)
.buildRepeatable(
cd -> {
Set r = new HashSet<>();
for (ChangeMessage m : cd.messages()) {
if (m.getAuthor() != null) {
r.add(m.getAuthor().get());
}
}
for (Comment c : cd.publishedComments()) {
r.add(c.author.getId().get());
}
return r;
});
/** Star labels on this change in the format: <account-id>:<label> */
public static final FieldDef> STAR =
exact(ChangeQueryBuilder.FIELD_STAR)
.stored()
.buildRepeatable(
cd ->
Iterables.transform(
cd.stars().entries(),
e ->
StarredChangesUtil.StarField.create(e.getKey(), e.getValue())
.toString()));
/** Users that have starred the change with any label. */
public static final FieldDef> STARBY =
integer(ChangeQueryBuilder.FIELD_STARBY)
.buildRepeatable(cd -> Iterables.transform(cd.stars().keySet(), Account.Id::get));
/** Opaque group identifiers for this change's patch sets. */
public static final FieldDef> GROUP =
exact(ChangeQueryBuilder.FIELD_GROUP)
.buildRepeatable(
cd -> {
Set r = Sets.newHashSetWithExpectedSize(1);
for (PatchSet ps : cd.patchSets()) {
r.addAll(ps.getGroups());
}
return r;
});
public static final ProtobufCodec PATCH_SET_CODEC =
CodecFactory.encoder(PatchSet.class);
/** Serialized patch set object, used for pre-populating results. */
public static final FieldDef> PATCH_SET =
storedOnly("_patch_set").buildRepeatable(cd -> toProtos(PATCH_SET_CODEC, cd.patchSets()));
/** Users who have edits on this change. */
public static final FieldDef> EDITBY =
integer(ChangeQueryBuilder.FIELD_EDITBY)
.buildRepeatable(cd -> cd.editsByUser().stream().map(Account.Id::get).collect(toSet()));
/** Users who have draft comments on this change. */
public static final FieldDef> DRAFTBY =
integer(ChangeQueryBuilder.FIELD_DRAFTBY)
.buildRepeatable(cd -> cd.draftsByUser().stream().map(Account.Id::get).collect(toSet()));
public static final Integer NOT_REVIEWED = -1;
/**
* Users the change was reviewed by since the last author update.
*
* A change is considered reviewed by a user if the latest update by that user is newer than
* the latest update by the change author. Both top-level change messages and new patch sets are
* considered to be updates.
*
*
If the latest update is by the change owner, then the special value {@link #NOT_REVIEWED} is
* emitted.
*/
public static final FieldDef> REVIEWEDBY =
integer(ChangeQueryBuilder.FIELD_REVIEWEDBY)
.stored()
.buildRepeatable(
cd -> {
Set reviewedBy = cd.reviewedBy();
if (reviewedBy.isEmpty()) {
return ImmutableSet.of(NOT_REVIEWED);
}
List result = new ArrayList<>(reviewedBy.size());
for (Account.Id id : reviewedBy) {
result.add(id.get());
}
return result;
});
// Submit rule options in this class should never use fastEvalLabels. This
// slows down indexing slightly but produces correct search results.
public static final SubmitRuleOptions SUBMIT_RULE_OPTIONS_LENIENT =
SubmitRuleOptions.defaults().allowClosed(true).allowDraft(true).build();
public static final SubmitRuleOptions SUBMIT_RULE_OPTIONS_STRICT =
SubmitRuleOptions.defaults().build();
/**
* JSON type for storing SubmitRecords.
*
* Stored fields need to use a stable format over a long period; this type insulates the index
* from implementation changes in SubmitRecord itself.
*/
static class StoredSubmitRecord {
static class StoredLabel {
String label;
SubmitRecord.Label.Status status;
Integer appliedBy;
}
SubmitRecord.Status status;
List labels;
String errorMessage;
StoredSubmitRecord(SubmitRecord rec) {
this.status = rec.status;
this.errorMessage = rec.errorMessage;
if (rec.labels != null) {
this.labels = new ArrayList<>(rec.labels.size());
for (SubmitRecord.Label label : rec.labels) {
StoredLabel sl = new StoredLabel();
sl.label = label.label;
sl.status = label.status;
sl.appliedBy = label.appliedBy != null ? label.appliedBy.get() : null;
this.labels.add(sl);
}
}
}
private SubmitRecord toSubmitRecord() {
SubmitRecord rec = new SubmitRecord();
rec.status = status;
rec.errorMessage = errorMessage;
if (labels != null) {
rec.labels = new ArrayList<>(labels.size());
for (StoredLabel label : labels) {
SubmitRecord.Label srl = new SubmitRecord.Label();
srl.label = label.label;
srl.status = label.status;
srl.appliedBy = label.appliedBy != null ? new Account.Id(label.appliedBy) : null;
rec.labels.add(srl);
}
}
return rec;
}
}
public static final FieldDef> SUBMIT_RECORD =
exact("submit_record").buildRepeatable(cd -> formatSubmitRecordValues(cd));
public static final FieldDef> STORED_SUBMIT_RECORD_STRICT =
storedOnly("full_submit_record_strict")
.buildRepeatable(cd -> storedSubmitRecords(cd, SUBMIT_RULE_OPTIONS_STRICT));
public static final FieldDef> STORED_SUBMIT_RECORD_LENIENT =
storedOnly("full_submit_record_lenient")
.buildRepeatable(cd -> storedSubmitRecords(cd, SUBMIT_RULE_OPTIONS_LENIENT));
public static void parseSubmitRecords(
Collection values, SubmitRuleOptions opts, ChangeData out) {
checkArgument(!opts.fastEvalLabels());
List records = parseSubmitRecords(values);
if (records.isEmpty()) {
// Assume no values means the field is not in the index;
// SubmitRuleEvaluator ensures the list is non-empty.
return;
}
out.setSubmitRecords(opts, records);
// Cache the fastEvalLabels variant as well so it can be used by
// ChangeJson.
out.setSubmitRecords(opts.toBuilder().fastEvalLabels(true).build(), records);
}
@VisibleForTesting
static List parseSubmitRecords(Collection values) {
return values
.stream()
.map(v -> GSON.fromJson(v, StoredSubmitRecord.class).toSubmitRecord())
.collect(toList());
}
@VisibleForTesting
static List storedSubmitRecords(List records) {
return Lists.transform(records, r -> GSON.toJson(new StoredSubmitRecord(r)).getBytes(UTF_8));
}
private static Iterable storedSubmitRecords(ChangeData cd, SubmitRuleOptions opts)
throws OrmException {
return storedSubmitRecords(cd.submitRecords(opts));
}
public static List formatSubmitRecordValues(ChangeData cd) throws OrmException {
return formatSubmitRecordValues(
cd.submitRecords(SUBMIT_RULE_OPTIONS_STRICT), cd.change().getOwner());
}
@VisibleForTesting
static List formatSubmitRecordValues(List records, Account.Id changeOwner) {
List result = new ArrayList<>();
for (SubmitRecord rec : records) {
result.add(rec.status.name());
if (rec.labels == null) {
continue;
}
for (SubmitRecord.Label label : rec.labels) {
String sl = label.status.toString() + ',' + label.label.toLowerCase();
result.add(sl);
String slc = sl + ',';
if (label.appliedBy != null) {
result.add(slc + label.appliedBy.get());
if (label.appliedBy.equals(changeOwner)) {
result.add(slc + ChangeQueryBuilder.OWNER_ACCOUNT_ID.get());
}
}
}
}
return result;
}
/**
* All values of all refs that were used in the course of indexing this document.
*
* Emitted as UTF-8 encoded strings of the form {@code project:ref/name:[hex sha]}.
*/
public static final FieldDef> REF_STATE =
storedOnly("ref_state")
.buildRepeatable(
(cd, a) -> {
List result = new ArrayList<>();
Project.NameKey project = cd.change().getProject();
cd.editRefs()
.values()
.forEach(r -> result.add(RefState.of(r).toByteArray(project)));
cd.starRefs()
.values()
.forEach(r -> result.add(RefState.of(r.ref()).toByteArray(a.allUsers)));
if (PrimaryStorage.of(cd.change()) == PrimaryStorage.NOTE_DB) {
ChangeNotes notes = cd.notes();
result.add(
RefState.create(notes.getRefName(), notes.getMetaId()).toByteArray(project));
notes.getRobotComments(); // Force loading robot comments.
RobotCommentNotes robotNotes = notes.getRobotCommentNotes();
result.add(
RefState.create(robotNotes.getRefName(), robotNotes.getMetaId())
.toByteArray(project));
cd.draftRefs()
.values()
.forEach(r -> result.add(RefState.of(r).toByteArray(a.allUsers)));
}
return result;
});
/**
* All ref wildcard patterns that were used in the course of indexing this document.
*
* Emitted as UTF-8 encoded strings of the form {@code project:ref/name/*}. See {@link
* RefStatePattern} for the pattern format.
*/
public static final FieldDef> REF_STATE_PATTERN =
storedOnly("ref_state_pattern")
.buildRepeatable(
(cd, a) -> {
Change.Id id = cd.getId();
Project.NameKey project = cd.change().getProject();
List result = new ArrayList<>(3);
result.add(
RefStatePattern.create(
RefNames.REFS_USERS + "*/" + RefNames.EDIT_PREFIX + id + "/*")
.toByteArray(project));
result.add(
RefStatePattern.create(RefNames.refsStarredChangesPrefix(id) + "*")
.toByteArray(a.allUsers));
if (PrimaryStorage.of(cd.change()) == PrimaryStorage.NOTE_DB) {
result.add(
RefStatePattern.create(RefNames.refsDraftCommentsPrefix(id) + "*")
.toByteArray(a.allUsers));
}
return result;
});
private static String getTopic(ChangeData cd) throws OrmException {
Change c = cd.change();
if (c == null) {
return null;
}
return firstNonNull(c.getTopic(), "");
}
private static List toProtos(ProtobufCodec codec, Collection objs)
throws OrmException {
List result = Lists.newArrayListWithCapacity(objs.size());
ByteArrayOutputStream out = new ByteArrayOutputStream(256);
try {
for (T obj : objs) {
out.reset();
CodedOutputStream cos = CodedOutputStream.newInstance(out);
codec.encode(obj, cos);
cos.flush();
result.add(out.toByteArray());
}
} catch (IOException e) {
throw new OrmException(e);
}
return result;
}
private static FieldDef.Getter changeGetter(Function func) {
return in -> in.change() != null ? func.apply(in.change()) : null;
}
}