1 /*
2 * Copyright (C) 2011 Google Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
14 * its contributors may be used to endorse or promote products derived
15 * from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
20 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 #include "config.h"
30 #include "IDBFactoryBackendImpl.h"
31
32 #include "DOMStringList.h"
33 #include "IDBDatabaseBackendImpl.h"
34 #include "IDBDatabaseException.h"
35 #include "IDBLevelDBBackingStore.h"
36 #include "IDBSQLiteBackingStore.h"
37 #include "IDBTransactionCoordinator.h"
38 #include "SecurityOrigin.h"
39 #include <wtf/Threading.h>
40 #include <wtf/UnusedParam.h>
41
42 #if ENABLE(INDEXED_DATABASE)
43
44 namespace WebCore {
45
IDBFactoryBackendImpl()46 IDBFactoryBackendImpl::IDBFactoryBackendImpl()
47 : m_transactionCoordinator(IDBTransactionCoordinator::create())
48 {
49 }
50
~IDBFactoryBackendImpl()51 IDBFactoryBackendImpl::~IDBFactoryBackendImpl()
52 {
53 }
54
removeIDBDatabaseBackend(const String & uniqueIdentifier)55 void IDBFactoryBackendImpl::removeIDBDatabaseBackend(const String& uniqueIdentifier)
56 {
57 ASSERT(m_databaseBackendMap.contains(uniqueIdentifier));
58 m_databaseBackendMap.remove(uniqueIdentifier);
59 }
60
addIDBBackingStore(const String & uniqueIdentifier,IDBBackingStore * backingStore)61 void IDBFactoryBackendImpl::addIDBBackingStore(const String& uniqueIdentifier, IDBBackingStore* backingStore)
62 {
63 ASSERT(!m_backingStoreMap.contains(uniqueIdentifier));
64 m_backingStoreMap.set(uniqueIdentifier, backingStore);
65 }
66
removeIDBBackingStore(const String & uniqueIdentifier)67 void IDBFactoryBackendImpl::removeIDBBackingStore(const String& uniqueIdentifier)
68 {
69 ASSERT(m_backingStoreMap.contains(uniqueIdentifier));
70 m_backingStoreMap.remove(uniqueIdentifier);
71 }
72
open(const String & name,PassRefPtr<IDBCallbacks> callbacks,PassRefPtr<SecurityOrigin> securityOrigin,Frame *,const String & dataDir,int64_t maximumSize,BackingStoreType backingStoreType)73 void IDBFactoryBackendImpl::open(const String& name, PassRefPtr<IDBCallbacks> callbacks, PassRefPtr<SecurityOrigin> securityOrigin, Frame*, const String& dataDir, int64_t maximumSize, BackingStoreType backingStoreType)
74 {
75 String fileIdentifier = securityOrigin->databaseIdentifier();
76 String uniqueIdentifier = fileIdentifier + "@" + name;
77 IDBDatabaseBackendMap::iterator it = m_databaseBackendMap.find(uniqueIdentifier);
78 if (it != m_databaseBackendMap.end()) {
79 callbacks->onSuccess(it->second);
80 return;
81 }
82
83 // FIXME: Everything from now on should be done on another thread.
84
85 RefPtr<IDBBackingStore> backingStore;
86 IDBBackingStoreMap::iterator it2 = m_backingStoreMap.find(fileIdentifier);
87 if (it2 != m_backingStoreMap.end())
88 backingStore = it2->second;
89 else {
90 if (backingStoreType == DefaultBackingStore)
91 backingStore = IDBSQLiteBackingStore::open(securityOrigin.get(), dataDir, maximumSize, fileIdentifier, this);
92 #if ENABLE(LEVELDB)
93 else if (backingStoreType == LevelDBBackingStore)
94 backingStore = IDBLevelDBBackingStore::open(securityOrigin.get(), dataDir, maximumSize, fileIdentifier, this);
95 #endif
96 if (!backingStore) {
97 callbacks->onError(IDBDatabaseError::create(IDBDatabaseException::UNKNOWN_ERR, "Internal error."));
98 return;
99 }
100 }
101
102 RefPtr<IDBDatabaseBackendImpl> databaseBackend = IDBDatabaseBackendImpl::create(name, backingStore.get(), m_transactionCoordinator.get(), this, uniqueIdentifier);
103 callbacks->onSuccess(databaseBackend.get());
104 m_databaseBackendMap.set(uniqueIdentifier, databaseBackend.get());
105 }
106
107 } // namespace WebCore
108
109 #endif // ENABLE(INDEXED_DATABASE)
110