summaryrefslogtreecommitdiff
path: root/connectivity/source/drivers/jdbc/Object.cxx
blob: 8fac24980fb7b905ce5de74bd49c101b08c7edb3 (plain)
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
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (the "License"); you may not use this file
 *   except in compliance with the License. You may obtain a copy of
 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
 */

#include <java/lang/Class.hxx>
#include <connectivity/CommonTools.hxx>
#include <com/sun/star/uno/Exception.hpp>
#include <com/sun/star/lang/WrappedTargetRuntimeException.hpp>
#include <java/tools.hxx>
#include <java/sql/SQLException.hxx>
#include <osl/thread.h>
#include <java/LocalRef.hxx>
#include <strings.hxx>

#include <comphelper/logging.hxx>
#include <cppuhelper/exc_hlp.hxx>

#include <memory>

using namespace connectivity;
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::beans;
using namespace ::com::sun::star::sdbc;
using namespace ::com::sun::star::container;
using namespace ::com::sun::star::lang;


static ::rtl::Reference< jvmaccess::VirtualMachine > const & getJavaVM2(const ::rtl::Reference< jvmaccess::VirtualMachine >& _rVM = ::rtl::Reference< jvmaccess::VirtualMachine >(),
                                                        bool _bSet = false)
{
    static ::rtl::Reference< jvmaccess::VirtualMachine > s_VM;
    if ( _rVM.is() || _bSet )
        s_VM = _rVM;
    return s_VM;
}

::rtl::Reference< jvmaccess::VirtualMachine > java_lang_Object::getVM(const Reference<XComponentContext >& _rxContext)
{
    ::rtl::Reference< jvmaccess::VirtualMachine > xVM = getJavaVM2();
    if ( !xVM.is() && _rxContext.is() )
        xVM = getJavaVM2(::connectivity::getJavaVM(_rxContext));

    return xVM;
}

SDBThreadAttach::SDBThreadAttach()
 : m_aGuard(java_lang_Object::getVM())
 , pEnv(nullptr)
{
    pEnv = m_aGuard.getEnvironment();
    OSL_ENSURE(pEnv,"Environment is nULL!");
}

SDBThreadAttach::~SDBThreadAttach()
{
}

static oslInterlockedCount& getJavaVMRefCount()
{
    static oslInterlockedCount s_nRefCount = 0;
    return s_nRefCount;
}

void SDBThreadAttach::addRef()
{
    osl_atomic_increment(&getJavaVMRefCount());
}

void SDBThreadAttach::releaseRef()
{
    osl_atomic_decrement(&getJavaVMRefCount());
    if ( getJavaVMRefCount() == 0 )
    {
        getJavaVM2(::rtl::Reference< jvmaccess::VirtualMachine >(),true);
    }
}

// static variables of the class
jclass java_lang_Object::theClass = nullptr;

jclass java_lang_Object::getMyClass() const
{
    if( !theClass )
        theClass = findMyClass("java/lang/Object");
    return theClass;
}
// the actual constructor
java_lang_Object::java_lang_Object()
            : object( nullptr )
{
    SDBThreadAttach::addRef();
}

// the protected-constructor for the derived classes
java_lang_Object::java_lang_Object( JNIEnv * pXEnv, jobject myObj )
    : object( nullptr )
{
    SDBThreadAttach::addRef();
    if( pXEnv && myObj )
        object = pXEnv->NewGlobalRef( myObj );
}

java_lang_Object::~java_lang_Object() COVERITY_NOEXCEPT_FALSE
{
    if( object )
    {
        SDBThreadAttach t;
        clearObject(*t.pEnv);
    }
    SDBThreadAttach::releaseRef();
}
void java_lang_Object::clearObject(JNIEnv& rEnv)
{
    if( object )
    {
        rEnv.DeleteGlobalRef( object );
        object = nullptr;
    }
}

void java_lang_Object::clearObject()
{
    if( object )
    {
        SDBThreadAttach t;
        clearObject(*t.pEnv);
    }
}
// the protected-constructor for the derived classes
void java_lang_Object::saveRef( JNIEnv * pXEnv, jobject myObj )
{
    OSL_ENSURE( myObj, "object in c++ -> Java Wrapper" );
    if( myObj )
        object = pXEnv->NewGlobalRef( myObj );
}


OUString java_lang_Object::toString() const
{
    static jmethodID mID(nullptr);
    return callStringMethod("toString",mID);
}


namespace
{
    bool    lcl_translateJNIExceptionToUNOException(
        JNIEnv* _pEnvironment, const Reference< XInterface >& _rxContext, SQLException& _out_rException )
    {
        jthrowable jThrow = _pEnvironment ? _pEnvironment->ExceptionOccurred() : nullptr;
        if ( !jThrow )
            return false;

        _pEnvironment->ExceptionClear();
            // we have to clear the exception here because we want to handle it itself

        if ( _pEnvironment->IsInstanceOf( jThrow, java_sql_SQLException_BASE::st_getMyClass() ) )
        {
            std::unique_ptr< java_sql_SQLException_BASE > pException( new java_sql_SQLException_BASE( _pEnvironment, jThrow ) );
            _out_rException = SQLException( pException->getMessage(), _rxContext,
                pException->getSQLState(), pException->getErrorCode(), Any() );
            return true;
        }
        else if ( _pEnvironment->IsInstanceOf( jThrow, java_lang_Throwable::st_getMyClass() ) )
        {
            std::unique_ptr< java_lang_Throwable > pThrow( new java_lang_Throwable( _pEnvironment, jThrow ) );
#if OSL_DEBUG_LEVEL > 0
            pThrow->printStackTrace();
#endif
            OUString sMessage = pThrow->getMessage();
            if ( sMessage.isEmpty() )
                sMessage = pThrow->getLocalizedMessage();
            if(  sMessage.isEmpty() )
                sMessage = pThrow->toString();
            _out_rException = SQLException( sMessage, _rxContext, OUString(), -1, Any() );
            return true;
        }
        else
            _pEnvironment->DeleteLocalRef( jThrow );
        return false;
    }
}


void java_lang_Object::ThrowLoggedSQLException( const ::comphelper::EventLogger& _rLogger, JNIEnv* _pEnvironment,
    const Reference< XInterface >& _rxContext )
{
    SQLException aException;
    if ( lcl_translateJNIExceptionToUNOException( _pEnvironment, _rxContext, aException ) )
    {
        _rLogger.log( css::logging::LogLevel::SEVERE, STR_LOG_THROWING_EXCEPTION, aException.Message, aException.SQLState, aException.ErrorCode );
        throw aException;
    }
}

void java_lang_Object::ThrowSQLException( JNIEnv* _pEnvironment, const Reference< XInterface>& _rxContext )
{
    SQLException aException;
    if ( lcl_translateJNIExceptionToUNOException( _pEnvironment, _rxContext, aException ) )
        throw aException;
}

void java_lang_Object::ThrowRuntimeException( JNIEnv* _pEnvironment, const Reference< XInterface>& _rxContext )
{
    try
    {
        ThrowSQLException(_pEnvironment, _rxContext);
    }
    catch (const SQLException& e)
    {
        css::uno::Any anyEx = cppu::getCaughtException();
        throw css::lang::WrappedTargetRuntimeException( e.Message,
                        e.Context, anyEx );
    }
}

void java_lang_Object::obtainMethodId_throwSQL(JNIEnv* _pEnv,const char* _pMethodName, const char* _pSignature,jmethodID& _inout_MethodID) const
{
    if  ( !_inout_MethodID )
    {
        _inout_MethodID  = _pEnv->GetMethodID( getMyClass(), _pMethodName, _pSignature );
        OSL_ENSURE( _inout_MethodID, _pSignature );
        if  ( !_inout_MethodID )
            throw SQLException();
    } // if  ( !_inout_MethodID )
}

void java_lang_Object::obtainMethodId_throwRuntime(JNIEnv* _pEnv,const char* _pMethodName, const char* _pSignature,jmethodID& _inout_MethodID) const
{
    if  ( !_inout_MethodID )
    {
        _inout_MethodID  = _pEnv->GetMethodID( getMyClass(), _pMethodName, _pSignature );
        OSL_ENSURE( _inout_MethodID, _pSignature );
        if  ( !_inout_MethodID )
            throw RuntimeException();
    } // if  ( !_inout_MethodID )
}


bool java_lang_Object::callBooleanMethod( const char* _pMethodName, jmethodID& _inout_MethodID ) const
{
    jboolean out( false );

    SDBThreadAttach t;
    OSL_ENSURE( t.pEnv, "java_lang_Object::callBooleanMethod: no Java environment anymore!" );
    obtainMethodId_throwSQL(t.pEnv, _pMethodName,"()Z", _inout_MethodID);
    // call method
    out = t.pEnv->CallBooleanMethod( object, _inout_MethodID );
    ThrowSQLException( t.pEnv, nullptr );

    return out;
}

bool java_lang_Object::callBooleanMethodWithIntArg( const char* _pMethodName, jmethodID& _inout_MethodID, sal_Int32 _nArgument ) const
{
    jboolean out( false );
    SDBThreadAttach t;
    OSL_ENSURE( t.pEnv, "java_lang_Object::callBooleanMethodWithIntArg: no Java environment anymore!" );
    obtainMethodId_throwSQL(t.pEnv, _pMethodName,"(I)Z", _inout_MethodID);
    // call method
    out = t.pEnv->CallBooleanMethod( object, _inout_MethodID, _nArgument );
    ThrowSQLException( t.pEnv, nullptr );

    return out;
}

jobject java_lang_Object::callResultSetMethod( JNIEnv& _rEnv,const char* _pMethodName, jmethodID& _inout_MethodID ) const
{
    // call method
    jobject out = callObjectMethod(&_rEnv,_pMethodName,"()Ljava/sql/ResultSet;", _inout_MethodID);
    return out;
}

sal_Int32 java_lang_Object::callIntMethod_ThrowSQL(const char* _pMethodName, jmethodID& _inout_MethodID) const
{
    SDBThreadAttach t;
    OSL_ENSURE( t.pEnv, "java_lang_Object::callIntMethod: no Java environment anymore!" );
    obtainMethodId_throwSQL(t.pEnv, _pMethodName,"()I", _inout_MethodID);
    // call method
    jint out( t.pEnv->CallIntMethod( object, _inout_MethodID ) );
    ThrowSQLException( t.pEnv, nullptr );
    return static_cast<sal_Int32>(out);
}

sal_Int32 java_lang_Object::callIntMethod_ThrowRuntime(const char* _pMethodName, jmethodID& _inout_MethodID) const
{
    SDBThreadAttach t;
    OSL_ENSURE( t.pEnv, "java_lang_Object::callIntMethod: no Java environment anymore!" );
    obtainMethodId_throwRuntime(t.pEnv, _pMethodName,"()I", _inout_MethodID);
    // call method
    jint out( t.pEnv->CallIntMethod( object, _inout_MethodID ) );
    ThrowRuntimeException(t.pEnv, nullptr);
    return static_cast<sal_Int32>(out);
}

sal_Int32 java_lang_Object::callIntMethodWithIntArg_ThrowSQL( const char* _pMethodName, jmethodID& _inout_MethodID,sal_Int32 _nArgument ) const
{
    SDBThreadAttach t;
    OSL_ENSURE( t.pEnv, "java_lang_Object::callIntMethod: no Java environment anymore!" );
    obtainMethodId_throwSQL(t.pEnv, _pMethodName,"(I)I", _inout_MethodID);
    // call method
    jint out( t.pEnv->CallIntMethod( object, _inout_MethodID , _nArgument) );
    ThrowSQLException( t.pEnv, nullptr );
    return static_cast<sal_Int32>(out);
}

sal_Int32 java_lang_Object::callIntMethodWithIntArg_ThrowRuntime( const char* _pMethodName, jmethodID& _inout_MethodID,sal_Int32 _nArgument ) const
{
    SDBThreadAttach t;
    OSL_ENSURE( t.pEnv, "java_lang_Object::callIntMethod: no Java environment anymore!" );
    obtainMethodId_throwRuntime(t.pEnv, _pMethodName,"(I)I", _inout_MethodID);
    // call method
    jint out( t.pEnv->CallIntMethod( object, _inout_MethodID , _nArgument) );
    ThrowRuntimeException(t.pEnv, nullptr);
    return static_cast<sal_Int32>(out);
}

void java_lang_Object::callVoidMethod_ThrowSQL( const char* _pMethodName, jmethodID& _inout_MethodID) const
{
    SDBThreadAttach t;
    OSL_ENSURE( t.pEnv, "java_lang_Object::callIntMethod: no Java environment anymore!" );
    obtainMethodId_throwSQL(t.pEnv, _pMethodName,"()V", _inout_MethodID);

    // call method
    t.pEnv->CallVoidMethod( object, _inout_MethodID );
    ThrowSQLException( t.pEnv, nullptr );
}

void java_lang_Object::callVoidMethod_ThrowRuntime( const char* _pMethodName, jmethodID& _inout_MethodID) const
{
    SDBThreadAttach t;
    OSL_ENSURE( t.pEnv, "java_lang_Object::callIntMethod: no Java environment anymore!" );
    obtainMethodId_throwRuntime(t.pEnv, _pMethodName,"()V", _inout_MethodID);

    // call method
    t.pEnv->CallVoidMethod( object, _inout_MethodID );
    ThrowRuntimeException(t.pEnv, nullptr);
}

void java_lang_Object::callVoidMethodWithIntArg_ThrowSQL( const char* _pMethodName, jmethodID& _inout_MethodID, sal_Int32 _nArgument ) const
{
    SDBThreadAttach t;
    OSL_ENSURE( t.pEnv, "java_lang_Object::callIntMethod: no Java environment anymore!" );
    obtainMethodId_throwSQL(t.pEnv, _pMethodName,"(I)V", _inout_MethodID);

    // call method
    t.pEnv->CallVoidMethod( object, _inout_MethodID,_nArgument );
    ThrowSQLException( t.pEnv, nullptr );
}

void java_lang_Object::callVoidMethodWithIntArg_ThrowRuntime( const char* _pMethodName, jmethodID& _inout_MethodID, sal_Int32 _nArgument ) const
{
    SDBThreadAttach t;
    OSL_ENSURE( t.pEnv, "java_lang_Object::callIntMethod: no Java environment anymore!" );
    obtainMethodId_throwRuntime(t.pEnv, _pMethodName,"(I)V", _inout_MethodID);

    // call method
    t.pEnv->CallVoidMethod( object, _inout_MethodID,_nArgument );
    ThrowRuntimeException(t.pEnv, nullptr);
}

void java_lang_Object::callVoidMethodWithBoolArg_ThrowSQL( const char* _pMethodName, jmethodID& _inout_MethodID, bool _nArgument ) const
{
    SDBThreadAttach t;
    OSL_ENSURE( t.pEnv, "java_lang_Object::callIntMethod: no Java environment anymore!" );
    obtainMethodId_throwSQL(t.pEnv, _pMethodName,"(Z)V", _inout_MethodID);
    // call method
    t.pEnv->CallVoidMethod( object, _inout_MethodID,int(_nArgument) );
    ThrowSQLException( t.pEnv, nullptr );
}

void java_lang_Object::callVoidMethodWithBoolArg_ThrowRuntime( const char* _pMethodName, jmethodID& _inout_MethodID, bool _nArgument ) const
{
    SDBThreadAttach t;
    OSL_ENSURE( t.pEnv, "java_lang_Object::callIntMethod: no Java environment anymore!" );
    obtainMethodId_throwRuntime(t.pEnv, _pMethodName,"(Z)V", _inout_MethodID);
    // call method
    t.pEnv->CallVoidMethod( object, _inout_MethodID,int(_nArgument) );
    ThrowRuntimeException(t.pEnv, nullptr);
}

OUString java_lang_Object::callStringMethod( const char* _pMethodName, jmethodID& _inout_MethodID ) const
{
    SDBThreadAttach t;
    OSL_ENSURE( t.pEnv, "java_lang_Object::callStringMethod: no Java environment anymore!" );

    // call method
    jstring out = static_cast<jstring>(callObjectMethod(t.pEnv,_pMethodName,"()Ljava/lang/String;", _inout_MethodID));
    return JavaString2String( t.pEnv, out );
}

jobject java_lang_Object::callObjectMethod( JNIEnv * _pEnv,const char* _pMethodName,const char* _pSignature, jmethodID& _inout_MethodID ) const
{
    // obtain method ID
    obtainMethodId_throwSQL(_pEnv, _pMethodName,_pSignature, _inout_MethodID);
    // call method
    jobject out = _pEnv->CallObjectMethod( object, _inout_MethodID);
    ThrowSQLException( _pEnv, nullptr );
    return out;
}


jobject java_lang_Object::callObjectMethodWithIntArg( JNIEnv * _pEnv,const char* _pMethodName,const char* _pSignature, jmethodID& _inout_MethodID , sal_Int32 _nArgument) const
{
    obtainMethodId_throwSQL(_pEnv, _pMethodName,_pSignature, _inout_MethodID);
    // call method
    jobject out = _pEnv->CallObjectMethod( object, _inout_MethodID,_nArgument );
    ThrowSQLException( _pEnv, nullptr );
    return out;
}

OUString java_lang_Object::callStringMethodWithIntArg( const char* _pMethodName, jmethodID& _inout_MethodID , sal_Int32 _nArgument) const
{
    SDBThreadAttach t;
    OSL_ENSURE( t.pEnv, "java_lang_Object::callStringMethod: no Java environment anymore!" );
    jstring out = static_cast<jstring>(callObjectMethodWithIntArg(t.pEnv,_pMethodName,"(I)Ljava/lang/String;",_inout_MethodID,_nArgument));
    return JavaString2String( t.pEnv, out );
}

void java_lang_Object::callVoidMethodWithStringArg( const char* _pMethodName, jmethodID& _inout_MethodID,const OUString& _nArgument ) const
{
    SDBThreadAttach t;
    OSL_ENSURE( t.pEnv, "java_lang_Object::callIntMethod: no Java environment anymore!" );
    obtainMethodId_throwSQL(t.pEnv, _pMethodName,"(Ljava/lang/String;)V", _inout_MethodID);

    jdbc::LocalRef< jstring > str( t.env(),convertwchar_tToJavaString(t.pEnv,_nArgument));
    // call method
    t.pEnv->CallVoidMethod( object, _inout_MethodID , str.get());
    ThrowSQLException( t.pEnv, nullptr );
}

sal_Int32 java_lang_Object::callIntMethodWithStringArg( const char* _pMethodName, jmethodID& _inout_MethodID,const OUString& _nArgument ) const
{
    SDBThreadAttach t;
    OSL_ENSURE( t.pEnv, "java_lang_Object::callIntMethodWithStringArg: no Java environment anymore!" );
    obtainMethodId_throwSQL(t.pEnv, _pMethodName,"(Ljava/lang/String;)I", _inout_MethodID);

    //TODO: Check if the code below is needed
            //jdbc::LocalRef< jstring > str( t.env(), convertwchar_tToJavaString( t.pEnv, sql ) );
            //{
            //    jdbc::ContextClassLoaderScope ccl( t.env(),
            //        m_pConnection ? m_pConnection->getDriverClassLoader() : jdbc::GlobalRef< jobject >(),
            //        m_aLogger,
            //        *this
            //    );

    jdbc::LocalRef< jstring > str( t.env(),convertwchar_tToJavaString(t.pEnv,_nArgument));
    // call method
    jint out = t.pEnv->CallIntMethod( object, _inout_MethodID , str.get());
    ThrowSQLException( t.pEnv, nullptr );
    return static_cast<sal_Int32>(out);
}

jclass java_lang_Object::findMyClass(const char* _pClassName)
{
    // the class must be fetched only once, therefore static
    SDBThreadAttach t;
    jclass tempClass = t.pEnv->FindClass(_pClassName); OSL_ENSURE(tempClass,"Java : FindClass not successful!");
    if(!tempClass)
    {
        t.pEnv->ExceptionDescribe();
        t.pEnv->ExceptionClear();
    }
    jclass globClass = static_cast<jclass>(t.pEnv->NewGlobalRef( tempClass ));
    t.pEnv->DeleteLocalRef( tempClass );
    return globClass;
}

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */