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33
34#ifndef DATABASEMANAGER_H_
35#define DATABASEMANAGER_H_
36
37//
38// W A R N I N G
39// -------------
40//
41// This file is not part of the Qt API. It exists purely as an
42// implementation detail. This header file may change from version to
43// version without notice, or even be removed.
44//
45// We mean it.
46//
47
48#include "qserviceframeworkglobal.h"
49#include "servicedatabase_p.h"
50#include <QObject>
51
52#ifdef QT_SFW_SERVICEDATABASE_GENERATE
53#undef Q_AUTOTEST_EXPORT
54#define Q_AUTOTEST_EXPORT
55#endif
56
57QT_BEGIN_NAMESPACE
58
59class DatabaseFileWatcher;
60class Q_AUTOTEST_EXPORT DatabaseManager : public QObject
61{
62 Q_OBJECT
63
64 public:
65 enum DbScope{UserScope, SystemScope, UserOnlyScope};
66 DatabaseManager(void);
67 virtual ~DatabaseManager();
68
69 bool registerService(ServiceMetaDataResults &service, DbScope scope);
70 bool unregisterService(const QString &serviceName, DbScope scope);
71 bool serviceInitialized(const QString &serviceName, DbScope scope);
72
73 QList<QServiceInterfaceDescriptor> getInterfaces(const QServiceFilter &filter, DbScope scope);
74 QStringList getServiceNames(const QString &interfaceName, DbScope scope);
75
76 QServiceInterfaceDescriptor interfaceDefault(const QString &interfaceName, DbScope scope);
77 bool setInterfaceDefault(const QString &serviceName, const QString &interfaceName, DbScope scope);
78 bool setInterfaceDefault(const QServiceInterfaceDescriptor &serviceInterface, DbScope scope);
79
80 DBError lastError(){ return m_lastError;}
81
82 void setChangeNotificationsEnabled(DbScope scope, bool enabled);
83
84 Q_SIGNALS:
85 void serviceAdded(const QString &serviceName, DatabaseManager::DbScope scope);
86 void serviceRemoved(const QString &serviceName, DatabaseManager::DbScope scope);
87
88 private:
89 void initDbPath(DbScope scope);
90 bool openDb(DbScope scope);
91
92 ServiceDatabase *m_userDb;
93 ServiceDatabase *m_systemDb;
94 DBError m_lastError;
95
96 friend class DatabaseFileWatcher;
97 DatabaseFileWatcher *m_fileWatcher;
98 QServiceInterfaceDescriptor latestDescriptor(const QList<QServiceInterfaceDescriptor> &descriptors);
99
100 bool m_hasAccessedUserDb;
101 bool m_alreadyWarnedOpenError;
102};
103
104
105class Q_AUTOTEST_EXPORT DatabaseFileWatcher : public QObject
106{
107 Q_OBJECT
108public:
109 DatabaseFileWatcher(DatabaseManager *parent = 0);
110
111 void setEnabled(ServiceDatabase *database, bool enabled);
112
113private Q_SLOTS:
114 void databaseChanged(const QString &path);
115 void databaseDirectoryChanged(const QString &path);
116
117private:
118 void notifyChanges(ServiceDatabase *database, DatabaseManager::DbScope scope);
119 QString closestExistingParent(const QString &path);
120 void restartDirMonitoring(const QString &dbPath, const QString &previousDirPath);
121
122 DatabaseManager *m_manager;
123 QFileSystemWatcher *m_watcher;
124 QHash<QString, QStringList> m_knownServices;
125 QStringList m_monitoredDbPaths;
126};
127
128QT_END_NAMESPACE
129
130#endif
131

source code of qtsystems/src/serviceframework/databasemanager_p.h