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com.google.gerrit.server.account.UniversalGroupBackend Maven / Gradle / Ivy
// 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.account;
import static com.google.gerrit.server.account.GroupBackends.GROUP_REF_NAME_COMPARATOR;
import static java.util.stream.Collectors.joining;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.Iterables;
import com.google.common.collect.ListMultimap;
import com.google.common.collect.MultimapBuilder;
import com.google.common.collect.Sets;
import com.google.common.flogger.FluentLogger;
import com.google.gerrit.common.Nullable;
import com.google.gerrit.entities.AccountGroup;
import com.google.gerrit.entities.GroupDescription;
import com.google.gerrit.entities.GroupReference;
import com.google.gerrit.metrics.Counter1;
import com.google.gerrit.metrics.Counter2;
import com.google.gerrit.metrics.Description;
import com.google.gerrit.metrics.Field;
import com.google.gerrit.metrics.MetricMaker;
import com.google.gerrit.server.CurrentUser;
import com.google.gerrit.server.StartupCheck;
import com.google.gerrit.server.StartupException;
import com.google.gerrit.server.config.GerritServerConfig;
import com.google.gerrit.server.logging.Metadata;
import com.google.gerrit.server.plugincontext.PluginSetContext;
import com.google.gerrit.server.plugincontext.PluginSetEntryContext;
import com.google.gerrit.server.project.ProjectState;
import com.google.inject.Inject;
import com.google.inject.Singleton;
import java.util.Collection;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import org.eclipse.jgit.lib.Config;
/**
* Universal implementation of the GroupBackend that works with the injected set of GroupBackends.
*/
@Singleton
public class UniversalGroupBackend implements GroupBackend {
private static final FluentLogger logger = FluentLogger.forEnclosingClass();
private static final Field SYSTEM_FIELD =
Field.ofString("system", Metadata.Builder::groupSystem).build();
private final PluginSetContext backends;
private final Counter1 handlesCount;
private final Counter1 getCount;
private final Counter2 suggestCount;
private final Counter2 containsCount;
private final Counter2 containsAnyCount;
private final Counter2 intersectionCount;
private final Counter2 knownGroupsCount;
@Inject
UniversalGroupBackend(PluginSetContext backends, MetricMaker metricMaker) {
this.backends = backends;
this.handlesCount =
metricMaker.newCounter(
"group/handles_count", new Description("Calls to GroupBackend.handles"), SYSTEM_FIELD);
this.getCount =
metricMaker.newCounter(
"group/get_count", new Description("Calls to GroupBackend.get"), SYSTEM_FIELD);
this.suggestCount =
metricMaker.newCounter(
"group/suggest_count",
new Description("Calls to GroupBackend.suggest"),
SYSTEM_FIELD,
Field.ofInteger("num_suggested", (meta, value) -> {}).build());
this.containsCount =
metricMaker.newCounter(
"group/contains_count",
new Description("Calls to GroupMemberships.contains"),
SYSTEM_FIELD,
Field.ofBoolean("contains", (meta, value) -> {}).build());
this.containsAnyCount =
metricMaker.newCounter(
"group/contains_any_of_count",
new Description("Calls to GroupMemberships.containsAnyOf"),
SYSTEM_FIELD,
Field.ofBoolean("contains_any_of", (meta, value) -> {}).build());
this.intersectionCount =
metricMaker.newCounter(
"group/intersection_count",
new Description("Calls to GroupMemberships.intersection"),
SYSTEM_FIELD,
Field.ofInteger("num_intersection", (meta, value) -> {}).build());
this.knownGroupsCount =
metricMaker.newCounter(
"group/known_groups_count",
new Description("Calls to GroupMemberships.getKnownGroups"),
SYSTEM_FIELD,
Field.ofInteger("num_known_groups", (meta, value) -> {}).build());
}
@Nullable
private GroupBackend backend(AccountGroup.UUID uuid) {
if (uuid != null) {
for (PluginSetEntryContext c : backends) {
if (Boolean.TRUE.equals(c.call(b -> b.handles(uuid)))) {
return c.get();
}
}
}
return null;
}
@Override
public boolean handles(AccountGroup.UUID uuid) {
GroupBackend b = backend(uuid);
if (b == null) {
return false;
}
handlesCount.increment(name(b));
return true;
}
@Nullable
@Override
public GroupDescription.Basic get(AccountGroup.UUID uuid) {
if (uuid == null) {
return null;
}
GroupBackend b = backend(uuid);
if (b == null) {
logger.atFine().log("Unknown GroupBackend for UUID: %s", uuid);
return null;
}
getCount.increment(name(b));
return b.get(uuid);
}
@Override
public Collection suggest(String name, ProjectState project) {
Set groups = Sets.newTreeSet(GROUP_REF_NAME_COMPARATOR);
backends.runEach(
g -> {
Collection suggestions = g.suggest(name, project);
suggestCount.increment(name(g), suggestions.size());
groups.addAll(suggestions);
});
return groups;
}
@Override
public GroupMembership membershipsOf(CurrentUser user) {
return new UniversalGroupMembership(user);
}
private class UniversalGroupMembership implements GroupMembership {
private final ImmutableMap memberships;
private UniversalGroupMembership(CurrentUser user) {
ImmutableMap.Builder builder = ImmutableMap.builder();
backends.runEach(g -> builder.put(g, g.membershipsOf(user)));
this.memberships = builder.build();
}
@Nullable
private Map.Entry membership(AccountGroup.UUID uuid) {
if (uuid != null) {
for (Map.Entry m : memberships.entrySet()) {
if (m.getKey().handles(uuid)) {
return m;
}
}
}
logger.atFine().log("Unknown GroupMembership for UUID: %s", uuid);
return null;
}
@Override
public boolean contains(AccountGroup.UUID uuid) {
if (uuid == null) {
return false;
}
Map.Entry m = membership(uuid);
if (m == null) {
return false;
}
boolean contains = m.getValue().contains(uuid);
containsCount.increment(name(m.getKey()), contains);
return contains;
}
@Override
public boolean containsAnyOf(Iterable uuids) {
ListMultimap, AccountGroup.UUID> lookups =
MultimapBuilder.hashKeys().arrayListValues().build();
for (AccountGroup.UUID uuid : uuids) {
if (uuid == null) {
continue;
}
Map.Entry m = membership(uuid);
if (m == null) {
continue;
}
lookups.put(m, uuid);
}
for (Map.Entry groupBackends : lookups.asMap().keySet()) {
GroupMembership m = groupBackends.getValue();
Collection ids = lookups.asMap().get(groupBackends);
if (ids.size() == 1) {
if (m.contains(Iterables.getOnlyElement(ids))) {
containsAnyCount.increment(name(groupBackends.getKey()), true);
return true;
}
} else if (m.containsAnyOf(ids)) {
containsAnyCount.increment(name(groupBackends.getKey()), true);
return true;
}
// We would have returned if contains was true.
containsAnyCount.increment(name(groupBackends.getKey()), false);
}
return false;
}
@Override
public Set intersection(Iterable uuids) {
ListMultimap, AccountGroup.UUID> lookups =
MultimapBuilder.hashKeys().arrayListValues().build();
for (AccountGroup.UUID uuid : uuids) {
if (uuid == null) {
continue;
}
Map.Entry m = membership(uuid);
if (m == null) {
logger.atFine().log("Unknown GroupMembership for UUID: %s", uuid);
continue;
}
lookups.put(m, uuid);
}
Set groups = new HashSet<>();
for (Map.Entry groupBackend : lookups.asMap().keySet()) {
Set intersection =
groupBackend.getValue().intersection(lookups.asMap().get(groupBackend));
intersectionCount.increment(name(groupBackend.getKey()), intersection.size());
groups.addAll(intersection);
}
return groups;
}
@Override
public Set getKnownGroups() {
Set groups = new HashSet<>();
for (Map.Entry entry : memberships.entrySet()) {
Set knownGroups = entry.getValue().getKnownGroups();
knownGroupsCount.increment(name(entry.getKey()), knownGroups.size());
groups.addAll(knownGroups);
}
return groups;
}
}
@Override
public boolean isVisibleToAll(AccountGroup.UUID uuid) {
for (PluginSetEntryContext c : backends) {
if (Boolean.TRUE.equals(c.call(b -> b.handles(uuid)))) {
return c.call(b -> b.isVisibleToAll(uuid));
}
}
return false;
}
private static String name(GroupBackend backend) {
if (backend == null) {
return "none";
}
return backend.getClass().getSimpleName();
}
public static class ConfigCheck implements StartupCheck {
private final Config cfg;
private final UniversalGroupBackend universalGroupBackend;
@Inject
ConfigCheck(@GerritServerConfig Config cfg, UniversalGroupBackend groupBackend) {
this.cfg = cfg;
this.universalGroupBackend = groupBackend;
}
@Override
public void check() throws StartupException {
String invalid =
cfg.getSubsections("groups").stream()
.filter(
sub -> {
AccountGroup.UUID uuid = AccountGroup.uuid(sub);
GroupBackend groupBackend = universalGroupBackend.backend(uuid);
return groupBackend == null || groupBackend.get(uuid) == null;
})
.map(u -> "'" + u + "'")
.collect(joining(","));
if (!invalid.isEmpty()) {
throw new StartupException(
String.format(
"Subsections for 'groups' in gerrit.config must be valid group"
+ " UUIDs. The following group UUIDs could not be resolved: "
+ invalid
+ " Please remove/fix these 'groups' subsections in"
+ " gerrit.config."));
}
}
}
}
