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
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
|
#include "dbandroidconnection.h"
#include "dbandroidinstance.h"
#include "sqlqueryandroid.h"
#include "db/sqlerrorcodes.h"
#include "common/unused.h"
#include "dbandroid.h"
#include "dbandroidjsonconnection.h"
#include "dbandroidconnectionfactory.h"
#include "dbandroidurl.h"
#include "schemaresolver.h"
#include "services/notifymanager.h"
#include "db/dbsqlite3.h"
#include "parser/parser.h"
#include <QJsonObject>
#include <QJsonArray>
#include <QJsonDocument>
#include <QDebug>
DbAndroidInstance::DbAndroidInstance(DbAndroid* plugin, const QString& name, const QString& path, const QHash<QString, QVariant>& connOptions) :
AbstractDb(name, path, connOptions), plugin(plugin)
{
this->connOptions[SchemaResolver::USE_SCHEMA_CACHING] = true;
}
DbAndroidInstance::~DbAndroidInstance()
{
closeInternal();
}
QList<AliasedColumn> DbAndroidInstance::columnsForQuery(const QString& query)
{
Parser parser;
bool res = parser.parse(query);
if (!res)
{
qWarning() << "Could not parse query for providing columnsForQuery from DbAndroid:" << query;
return QList<AliasedColumn>();
}
if (!isDataReturningQuery(parser.getQueries().last()->queryType))
return QList<AliasedColumn>();
SqlQueryPtr results = exec(query);
if (results->isError())
{
qWarning() << "Could not execute query for providing columnsForQuery from DbAndroid:" << query
<< ". The error was:" << results->getErrorText();
return QList<AliasedColumn>();
}
QList<AliasedColumn> columns;
AliasedColumn column;
for (QString& colName : results->getColumnNames())
{
column.setAlias(colName);
columns << column;
}
return columns;
}
SqlQueryPtr DbAndroidInstance::prepare(const QString& query)
{
return SqlQueryPtr(new SqlQueryAndroid(this, connection, query));
}
QString DbAndroidInstance::getTypeLabel() const
{
return plugin->getLabel();
}
QString DbAndroidInstance::getTypeClassName() const
{
return "DbAndroidInstance";
}
bool DbAndroidInstance::deregisterFunction(const QString& name, int argCount)
{
// Unsupported by native Android driver
UNUSED(name);
UNUSED(argCount);
return true;
}
bool DbAndroidInstance::registerScalarFunction(const QString& name, int argCount, bool deterministic)
{
// Unsupported by native Android driver
UNUSED(name);
UNUSED(argCount);
UNUSED(deterministic);
return true;
}
bool DbAndroidInstance::registerAggregateFunction(const QString& name, int argCount, bool deterministic)
{
// Unsupported by native Android driver
UNUSED(name);
UNUSED(argCount);
UNUSED(deterministic);
return true;
}
bool DbAndroidInstance::initAfterCreated()
{
version = 3;
return AbstractDb::initAfterCreated();
}
bool DbAndroidInstance::loadExtension(const QString& filePath, const QString& initFunc)
{
UNUSED(filePath);
UNUSED(initFunc);
errorCode = 1;
errorText = tr("Android SQLite driver does not support loadable extensions.");
return false;
}
bool DbAndroidInstance::isComplete(const QString& sql) const
{
return DbSqlite3::complete(sql);
}
Db* DbAndroidInstance::clone() const
{
return new DbAndroidInstance(plugin, name, path, connOptions);
}
bool DbAndroidInstance::isTransactionActive() const
{
// FIXME: Since there is no way to detect active transaction by PRAGMA or SQL function,
// this plugin cannot just test this state. It could potentially be implemented by tracking BEGIN/END keywords
// as first keywords in executed queries, but it will require more work and testing.
//
// Current consiequence of negleting this is that if user uses import() function enclosed with BEGIN & END,
// the query will fail due to already active transaction. In that case user needs to skip the BEGIN & END.
return false;
}
bool DbAndroidInstance::isOpenInternal()
{
return (connection && connection->isConnected());
}
void DbAndroidInstance::interruptExecution()
{
// Unsupported by native Android driver
}
QString DbAndroidInstance::getErrorTextInternal()
{
return errorText;
}
int DbAndroidInstance::getErrorCodeInternal()
{
return errorCode;
}
bool DbAndroidInstance::openInternal()
{
connection = createConnection();
bool res = connection->connectToAndroid(DbAndroidUrl(path));
if (!res)
{
safe_delete(connection);
}
else
{
connect(connection, SIGNAL(disconnected()), this, SLOT(handleDisconnected()));
}
return res;
}
bool DbAndroidInstance::closeInternal()
{
if (!connection)
return false;
disconnect(connection, SIGNAL(disconnected()), this, SLOT(handleDisconnected()));
connection->disconnectFromAndroid();
safe_delete(connection);
return true;
}
bool DbAndroidInstance::registerCollationInternal(const QString& name)
{
// Unsupported by native Android driver
UNUSED(name);
return true;
}
bool DbAndroidInstance::deregisterCollationInternal(const QString& name)
{
// Unsupported by native Android driver
UNUSED(name);
return true;
}
DbAndroidConnection* DbAndroidInstance::createConnection()
{
DbAndroidUrl url(path);
if (!url.isValid(false))
return nullptr;
return plugin->getConnectionFactory()->create(url, this);
}
void DbAndroidInstance::handleDisconnected()
{
safe_delete(connection);
notifyWarn(tr("Connection with Android database '%1' lost.").arg(getName()));
emit disconnected();
}
|
