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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.account;
import static com.google.common.base.Preconditions.checkArgument;
import com.google.common.collect.Iterables;
import com.google.gerrit.common.Nullable;
import com.google.gerrit.entities.Account;
import com.google.gerrit.extensions.common.AccountInfo;
import com.google.gerrit.server.account.AccountDirectory.FillOptions;
import com.google.gerrit.server.permissions.PermissionBackendException;
import com.google.inject.assistedinject.Assisted;
import com.google.inject.assistedinject.AssistedInject;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.EnumSet;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
public class AccountLoader {
public static final Set<FillOptions> DETAILED_OPTIONS =
Collections.unmodifiableSet(
EnumSet.of(
FillOptions.ID,
FillOptions.NAME,
FillOptions.EMAIL,
FillOptions.USERNAME,
FillOptions.DISPLAY_NAME,
FillOptions.STATUS,
FillOptions.STATE,
FillOptions.AVATARS,
FillOptions.TAGS));
public interface Factory {
AccountLoader create(boolean detailed);
AccountLoader create(Set<FillOptions> options);
}
private final InternalAccountDirectory directory;
private final Set<FillOptions> options;
private final Map<Account.Id, AccountInfo> created;
private final List<AccountInfo> provided;
@AssistedInject
AccountLoader(InternalAccountDirectory directory, @Assisted boolean detailed) {
this(directory, detailed ? DETAILED_OPTIONS : InternalAccountDirectory.ID_ONLY);
}
@AssistedInject
AccountLoader(InternalAccountDirectory directory, @Assisted Set<FillOptions> options) {
this.directory = directory;
this.options = options;
created = new HashMap<>();
provided = new ArrayList<>();
}
@Nullable
public synchronized AccountInfo get(@Nullable Account.Id id) {
if (id == null) {
return null;
}
AccountInfo info = created.get(id);
if (info == null) {
info = new AccountInfo(id.get());
created.put(id, info);
}
return info;
}
public synchronized void put(AccountInfo info) {
checkArgument(info._accountId != null, "_accountId field required");
provided.add(info);
}
public void fill() throws PermissionBackendException {
directory.fillAccountInfo(Iterables.concat(created.values(), provided), options);
}
public void fill(Collection<? extends AccountInfo> infos) throws PermissionBackendException {
for (AccountInfo info : infos) {
put(info);
}
fill();
}
@Nullable
public AccountInfo fillOne(@Nullable Account.Id id) throws PermissionBackendException {
AccountInfo info = get(id);
fill();
return info;
}
}