com.google.gerrit.server.account.InternalGroupBackend.java Source code

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Here is the source code for com.google.gerrit.server.account.InternalGroupBackend.java

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// 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 com.google.common.base.Function;
import com.google.common.base.Predicate;
import com.google.common.collect.Iterables;
import com.google.common.collect.Lists;
import com.google.gerrit.common.data.GroupDescription;
import com.google.gerrit.common.data.GroupDescriptions;
import com.google.gerrit.common.data.GroupReference;
import com.google.gerrit.reviewdb.client.AccountGroup;
import com.google.gerrit.server.IdentifiedUser;
import com.google.gerrit.server.project.ProjectControl;
import com.google.inject.Inject;
import com.google.inject.Singleton;

import org.eclipse.jgit.lib.ObjectId;

import java.util.Collection;

/** Implementation of GroupBackend for the internal group system. */
@Singleton
public class InternalGroupBackend implements GroupBackend {
    private static final Function<AccountGroup, GroupReference> ACT_GROUP_TO_GROUP_REF = new Function<AccountGroup, GroupReference>() {
        @Override
        public GroupReference apply(AccountGroup group) {
            return GroupReference.forGroup(group);
        }
    };

    private final GroupControl.Factory groupControlFactory;
    private final GroupCache groupCache;
    private final IncludingGroupMembership.Factory groupMembershipFactory;

    @Inject
    InternalGroupBackend(GroupControl.Factory groupControlFactory, GroupCache groupCache,
            IncludingGroupMembership.Factory groupMembershipFactory) {
        this.groupControlFactory = groupControlFactory;
        this.groupCache = groupCache;
        this.groupMembershipFactory = groupMembershipFactory;
    }

    @Override
    public boolean handles(AccountGroup.UUID uuid) {
        // See AccountGroup.isInternalGroup
        return ObjectId.isId(uuid.get()); // [0-9a-f]{40};
    }

    @Override
    public GroupDescription.Internal get(AccountGroup.UUID uuid) {
        if (!handles(uuid)) {
            return null;
        }

        AccountGroup g = groupCache.get(uuid);
        if (g == null) {
            return null;
        }
        return GroupDescriptions.forAccountGroup(g);
    }

    @Override
    public Collection<GroupReference> suggest(final String name, final ProjectControl project) {
        Iterable<AccountGroup> filtered = Iterables.filter(groupCache.all(), new Predicate<AccountGroup>() {
            @Override
            public boolean apply(AccountGroup group) {
                // startsWithIgnoreCase && isVisible
                return group.getName().regionMatches(true, 0, name, 0, name.length())
                        && groupControlFactory.controlFor(group).isVisible();
            }
        });
        return Lists.newArrayList(Iterables.transform(filtered, ACT_GROUP_TO_GROUP_REF));
    }

    @Override
    public GroupMembership membershipsOf(IdentifiedUser user) {
        return groupMembershipFactory.create(user);
    }

    @Override
    public boolean isVisibleToAll(AccountGroup.UUID uuid) {
        GroupDescription.Internal g = get(uuid);
        return g != null && g.getAccountGroup().isVisibleToAll();
    }
}