1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
|
// Copyright (C) 2009 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.gerrit.client.reviewdb.Account;
import com.google.gerrit.client.reviewdb.AccountExternalId;
import com.google.gerrit.client.reviewdb.AccountGroup;
import com.google.gerrit.client.reviewdb.AccountGroupMember;
import com.google.gerrit.client.reviewdb.ReviewDb;
import com.google.gerrit.server.cache.Cache;
import com.google.gerrit.server.cache.CacheModule;
import com.google.gerrit.server.cache.SelfPopulatingCache;
import com.google.gerrit.server.config.AuthConfig;
import com.google.gwtorm.client.OrmException;
import com.google.gwtorm.client.SchemaFactory;
import com.google.inject.Inject;
import com.google.inject.Module;
import com.google.inject.Singleton;
import com.google.inject.TypeLiteral;
import com.google.inject.name.Named;
import java.util.Collection;
import java.util.Collections;
import java.util.HashSet;
import java.util.Set;
/** Caches important (but small) account state to avoid database hits. */
@Singleton
public class AccountCacheImpl implements AccountCache {
private static final String CACHE_NAME = "accounts";
public static Module module() {
return new CacheModule() {
@Override
protected void configure() {
final TypeLiteral<Cache<Account.Id, AccountState>> type =
new TypeLiteral<Cache<Account.Id, AccountState>>() {};
core(type, CACHE_NAME);
bind(AccountCacheImpl.class);
bind(AccountCache.class).to(AccountCacheImpl.class);
}
};
}
private final SchemaFactory<ReviewDb> schema;
private final GroupCache groupCache;
private final SelfPopulatingCache<Account.Id, AccountState> self;
private final Set<AccountGroup.Id> registered;
private final Set<AccountGroup.Id> anonymous;
@Inject
AccountCacheImpl(final SchemaFactory<ReviewDb> sf, final AuthConfig auth,
final GroupCache groupCache,
@Named(CACHE_NAME) final Cache<Account.Id, AccountState> rawCache) {
schema = sf;
registered = auth.getRegisteredGroups();
anonymous = auth.getAnonymousGroups();
this.groupCache = groupCache;
self = new SelfPopulatingCache<Account.Id, AccountState>(rawCache) {
@Override
protected AccountState createEntry(Account.Id key) throws Exception {
return lookup(key);
}
@Override
protected AccountState missing(final Account.Id key) {
return missingAccount(key);
}
};
}
private AccountState lookup(final Account.Id who) throws OrmException {
final ReviewDb db = schema.open();
try {
final Account account = db.accounts().get(who);
if (account == null) {
// Account no longer exists? They are anonymous.
//
return missingAccount(who);
}
final Collection<AccountExternalId> externalIds =
Collections.unmodifiableCollection(db.accountExternalIds().byAccount(
who).toList());
Set<AccountGroup.Id> internalGroups = new HashSet<AccountGroup.Id>();
for (AccountGroupMember g : db.accountGroupMembers().byAccount(who)) {
final AccountGroup.Id groupId = g.getAccountGroupId();
final AccountGroup group = groupCache.get(groupId);
if (group != null && group.getType() == AccountGroup.Type.INTERNAL) {
internalGroups.add(groupId);
}
}
if (internalGroups.isEmpty()) {
internalGroups = registered;
} else {
internalGroups.addAll(registered);
internalGroups = Collections.unmodifiableSet(internalGroups);
}
return new AccountState(account, internalGroups, externalIds);
} finally {
db.close();
}
}
private AccountState missingAccount(final Account.Id accountId) {
final Account account = new Account(accountId);
final Collection<AccountExternalId> ids = Collections.emptySet();
return new AccountState(account, anonymous, ids);
}
public AccountState get(final Account.Id accountId) {
return self.get(accountId);
}
public void evict(final Account.Id accountId) {
self.remove(accountId);
}
}
|
