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// Copyright (C) 2014 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.project;

import com.google.common.flogger.FluentLogger;
import com.google.gerrit.common.Nullable;
import com.google.gerrit.entities.AccountGroup;
import com.google.gerrit.entities.GroupReference;
import com.google.gerrit.entities.Project;
import com.google.gerrit.server.git.ValidationError;
import com.google.gerrit.server.git.meta.TabFile;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;

/**
 * File format for group name aliases.
 *
 * 

Project configuration must use aliases for groups used in the permission section. The * aliases/group mapping is stored in a file "groups", (de)serialized with this class. */ public class GroupList extends TabFile { private static final FluentLogger logger = FluentLogger.forEnclosingClass(); public static final String FILE_NAME = "groups"; private final Map byUUID; private GroupList(Map byUUID) { this.byUUID = byUUID; } public static GroupList parse(Project.NameKey project, String text, ValidationError.Sink errors) throws IOException { List rows = parse(text, FILE_NAME, TRIM, TRIM, errors); Map groupsByUUID = new HashMap<>(rows.size()); for (Row row : rows) { if (row.left == null) { logger.atWarning().log("null field in group list for %s:\n%s", project, text); continue; } AccountGroup.UUID uuid = AccountGroup.uuid(row.left); String name = row.right; GroupReference ref = GroupReference.create(uuid, name); groupsByUUID.put(uuid, ref); } return new GroupList(groupsByUUID); } @Nullable public GroupReference byUUID(AccountGroup.UUID uuid) { return byUUID.get(uuid); } public Map byUUID() { return byUUID; } @Nullable public GroupReference byName(String name) { return byUUID.entrySet().stream() .map(Map.Entry::getValue) .filter(groupReference -> groupReference.getName().equals(name)) .findAny() .orElse(null); } /** * Returns the {@link GroupReference} instance that {@link GroupList} holds on to that has the * same {@link com.google.gerrit.entities.AccountGroup.UUID} as the argument. Will store the * argument internally, if no group with this {@link com.google.gerrit.entities.AccountGroup.UUID} * was stored previously. */ public GroupReference resolve(GroupReference group) { if (group != null) { if (group.getUUID() == null || group.getUUID().get() == null) { // A GroupReference from ProjectConfig that refers to a group not found // in this file will have a null UUID. Since there may be multiple // different missing references, it's not appropriate to cache the // results, nor return null the set from #uuids. return group; } GroupReference ref = byUUID.get(group.getUUID()); if (ref != null) { return ref; } byUUID.put(group.getUUID(), group); } return group; } public void renameGroup(AccountGroup.UUID uuid, String name) { byUUID.replace(uuid, GroupReference.create(uuid, name)); } public Collection references() { return byUUID.values(); } public Set uuids() { return byUUID.keySet(); } public void put(AccountGroup.UUID uuid, GroupReference reference) { if (uuid == null || uuid.get() == null) { return; // See note in #resolve above. } byUUID.put(uuid, reference); } @Nullable public String asText() { if (byUUID.isEmpty()) { return null; } List rows = new ArrayList<>(byUUID.size()); for (GroupReference g : sort(byUUID.values())) { if (g.getUUID() != null && g.getName() != null) { rows.add(new Row(g.getUUID().get(), g.getName())); } } return asText("UUID", "Group Name", rows); } public void retainUUIDs(Collection toBeRetained) { byUUID.keySet().retainAll(toBeRetained); } }





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