1/*
2 * Copyright (C) 2010 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 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#ifndef IDBFactoryBackendLevelDB_h
29#define IDBFactoryBackendLevelDB_h
30
31#if ENABLE(INDEXED_DATABASE) && USE(LEVELDB)
32
33#include "IDBCallbacks.h"
34#include "IDBDatabaseCallbacks.h"
35#include "IDBFactoryBackendInterface.h"
36#include "SecurityOrigin.h"
37#include <wtf/HashMap.h>
38#include <wtf/HashSet.h>
39#include <wtf/RefCounted.h>
40#include <wtf/WeakPtr.h>
41#include <wtf/text/StringHash.h>
42
43namespace WebCore {
44
45class DOMStringList;
46
47class IDBBackingStoreLevelDB;
48class IDBDatabaseBackend;
49
50class IDBFactoryBackendLevelDB : public IDBFactoryBackendInterface {
51public:
52    static PassRefPtr<IDBFactoryBackendLevelDB> create(const String& databaseDirectory)
53    {
54        return adoptRef(new IDBFactoryBackendLevelDB(databaseDirectory));
55    }
56    virtual ~IDBFactoryBackendLevelDB();
57
58    // Notifications from weak pointers.
59    virtual void removeIDBDatabaseBackend(const String& uniqueIdentifier) override final;
60
61    virtual void getDatabaseNames(PassRefPtr<IDBCallbacks>, const SecurityOrigin& openingOrigin, const SecurityOrigin& mainFrameOrigin, ScriptExecutionContext*, const String& dataDir) override final;
62    virtual void open(const String& name, uint64_t version, int64_t transactionId, PassRefPtr<IDBCallbacks>, PassRefPtr<IDBDatabaseCallbacks>, const SecurityOrigin& openingOrigin, const SecurityOrigin& mainFrameOrigin) override final;
63
64    virtual void deleteDatabase(const String& name, const SecurityOrigin& openingOrigin, const SecurityOrigin& mainFrameOrigin, PassRefPtr<IDBCallbacks>, ScriptExecutionContext*, const String& dataDir) override final;
65
66protected:
67    virtual PassRefPtr<IDBBackingStoreLevelDB> openBackingStore(const SecurityOrigin&, const String& dataDir);
68
69private:
70    explicit IDBFactoryBackendLevelDB(const String& databaseDirectory);
71
72    typedef HashMap<String, RefPtr<IDBDatabaseBackend> > IDBDatabaseBackendMap;
73    IDBDatabaseBackendMap m_databaseBackendMap;
74
75    typedef HashMap<String, WeakPtr<IDBBackingStoreLevelDB> > IDBBackingStoreLevelDBMap;
76    IDBBackingStoreLevelDBMap m_backingStoreMap;
77
78    HashSet<RefPtr<IDBBackingStoreLevelDB> > m_sessionOnlyBackingStores;
79
80    String m_databaseDirectory;
81};
82
83} // namespace WebCore
84
85#endif // ENABLE(INDEXED_DATABASE) && USE(LEVELDB)
86
87#endif // IDBFactoryBackendLevelDB_h
88