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
44namespace WebCore {
45
46IDBFactoryBackendImpl::IDBFactoryBackendImpl()
47    : m_transactionCoordinator(IDBTransactionCoordinator::create())
48{
49}
50
51IDBFactoryBackendImpl::~IDBFactoryBackendImpl()
52{
53}
54
55void IDBFactoryBackendImpl::removeIDBDatabaseBackend(const String& uniqueIdentifier)
56{
57    ASSERT(m_databaseBackendMap.contains(uniqueIdentifier));
58    m_databaseBackendMap.remove(uniqueIdentifier);
59}
60
61void IDBFactoryBackendImpl::addIDBBackingStore(const String& uniqueIdentifier, IDBBackingStore* backingStore)
62{
63    ASSERT(!m_backingStoreMap.contains(uniqueIdentifier));
64    m_backingStoreMap.set(uniqueIdentifier, backingStore);
65}
66
67void IDBFactoryBackendImpl::removeIDBBackingStore(const String& uniqueIdentifier)
68{
69    ASSERT(m_backingStoreMap.contains(uniqueIdentifier));
70    m_backingStoreMap.remove(uniqueIdentifier);
71}
72
73void 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