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/* -*- 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 <hsqldb/HStorageAccess.hxx>
#include <com/sun/star/embed/XStorage.hpp>
#include <com/sun/star/embed/ElementModes.hpp>
#include <com/sun/star/io/XStream.hpp>
#include <hsqldb/HStorageMap.hxx>
#include "accesslog.hxx"
#include <osl/diagnose.h>
#include <string.h>
using namespace ::com::sun::star::container;
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::embed;
using namespace ::com::sun::star::io;
using namespace ::com::sun::star::lang;
using namespace ::connectivity::hsqldb;
#define ThrowException(env, type, msg) { \
env->ThrowNew(env->FindClass(type), msg); }
/*
* Class: com_sun_star_sdbcx_comp_hsqldb_NativeStorageAccess
* Method: openStream
* Signature: (Ljava/lang/String;Ljava/lang/String;I)V
*/
extern "C" SAL_JNI_EXPORT void JNICALL Java_com_sun_star_sdbcx_comp_hsqldb_NativeStorageAccess_openStream
(JNIEnv * env, jobject /*obj_this*/,jstring name, jstring key, jint mode)
{
#ifdef HSQLDB_DBG
{
OperationLogFile( env, name, "data" ).logOperation( "openStream" );
LogFile( env, name, "data" ).create();
}
#endif
StorageContainer::registerStream(env,name,key,mode);
}
/*
* Class: com_sun_star_sdbcx_comp_hsqldb_NativeStorageAccess
* Method: close
* Signature: (Ljava/lang/String;Ljava/lang/String;)V
*/
extern "C" SAL_JNI_EXPORT void JNICALL Java_com_sun_star_sdbcx_comp_hsqldb_NativeStorageAccess_close
(JNIEnv * env, jobject /*obj_this*/,jstring name, jstring key)
{
#ifdef HSQLDB_DBG
{
OUString sKey = StorageContainer::jstring2ustring(env,key);
OUString sName = StorageContainer::jstring2ustring(env,name);
}
#endif
std::shared_ptr<StreamHelper> pHelper = StorageContainer::getRegisteredStream(env,name,key);
Reference< XOutputStream> xFlush = pHelper.get() ? pHelper->getOutputStream() : Reference< XOutputStream>();
if ( xFlush.is() )
try
{
xFlush->flush();
}
catch(const Exception&)
{
OSL_FAIL( "NativeStorageAccess::close: caught an exception while flushing!" );
}
#ifdef HSQLDB_DBG
{
OperationLogFile aOpLog( env, name, "data" );
aOpLog.logOperation( "close" );
aOpLog.close();
LogFile aDataLog( env, name, "data" );
aDataLog.close();
}
#endif
StorageContainer::revokeStream(env,name,key);
}
/*
* Class: com_sun_star_sdbcx_comp_hsqldb_NativeStorageAccess
* Method: getFilePointer
* Signature: (Ljava/lang/String;Ljava/lang/String;)J
*/
extern "C" SAL_JNI_EXPORT jlong JNICALL Java_com_sun_star_sdbcx_comp_hsqldb_NativeStorageAccess_getFilePointer
(JNIEnv * env, jobject /*obj_this*/,jstring name, jstring key)
{
#ifdef HSQLDB_DBG
OperationLogFile aOpLog( env, name, "data" );
aOpLog.logOperation( "getFilePointer" );
#endif
std::shared_ptr<StreamHelper> pHelper = StorageContainer::getRegisteredStream(env,name,key);
OSL_ENSURE(pHelper.get(),"No stream helper!");
jlong nReturn = pHelper.get() ? pHelper->getSeek()->getPosition() : jlong(0);
#ifdef HSQLDB_DBG
aOpLog.logReturn( nReturn );
#endif
return nReturn;
}
/*
* Class: com_sun_star_sdbcx_comp_hsqldb_NativeStorageAccess
* Method: length
* Signature: (Ljava/lang/String;Ljava/lang/String;)J
*/
extern "C" SAL_JNI_EXPORT jlong JNICALL Java_com_sun_star_sdbcx_comp_hsqldb_NativeStorageAccess_length
(JNIEnv * env, jobject /*obj_this*/,jstring name, jstring key)
{
#ifdef HSQLDB_DBG
OperationLogFile aOpLog( env, name, "data" );
aOpLog.logOperation( "length" );
#endif
std::shared_ptr<StreamHelper> pHelper = StorageContainer::getRegisteredStream(env,name,key);
OSL_ENSURE(pHelper.get(),"No stream helper!");
jlong nReturn = pHelper.get() ? pHelper->getSeek()->getLength() :jlong(0);
#ifdef HSQLDB_DBG
aOpLog.logReturn( nReturn );
#endif
return nReturn;
}
jint read_from_storage_stream( JNIEnv * env, jstring name, jstring key )
{
std::shared_ptr<StreamHelper> pHelper = StorageContainer::getRegisteredStream(env,name,key);
Reference< XInputStream> xIn = pHelper.get() ? pHelper->getInputStream() : Reference< XInputStream>();
OSL_ENSURE(xIn.is(),"Input stream is NULL!");
if ( xIn.is() )
{
Sequence< ::sal_Int8 > aData(1);
sal_Int32 nBytesRead = -1;
try
{
nBytesRead = xIn->readBytes(aData,1);
}
catch(const Exception& e)
{
StorageContainer::throwJavaException(e,env);
return -1;
}
if (nBytesRead <= 0)
{
return -1;
}
else
{
return static_cast<unsigned char>(aData[0]);
}
}
return -1;
}
/*
* Class: com_sun_star_sdbcx_comp_hsqldb_NativeStorageAccess
* Method: read
* Signature: (Ljava/lang/String;Ljava/lang/String;)I
*/
extern "C" SAL_JNI_EXPORT jint JNICALL Java_com_sun_star_sdbcx_comp_hsqldb_NativeStorageAccess_read__Ljava_lang_String_2Ljava_lang_String_2
(JNIEnv* env, jobject /*obj_this*/, jstring name, jstring key)
{
#ifdef HSQLDB_DBG
OperationLogFile aOpLog( env, name, "data" );
aOpLog.logOperation( "read" );
DataLogFile aDataLog( env, name, "data" );
return read_from_storage_stream( env, obj_this, name, key, &aDataLog );
#else
return read_from_storage_stream( env, name, key );
#endif
}
jint read_from_storage_stream_into_buffer( JNIEnv * env, jstring name, jstring key, jbyteArray buffer, jint off, jint len )
{
#ifdef HSQLDB_DBG
{
OUString sKey = StorageContainer::jstring2ustring(env,key);
OUString sName = StorageContainer::jstring2ustring(env,name);
}
#endif
std::shared_ptr<StreamHelper> pHelper = StorageContainer::getRegisteredStream(env,name,key);
Reference< XInputStream> xIn = pHelper.get() ? pHelper->getInputStream() : Reference< XInputStream>();
OSL_ENSURE(xIn.is(),"Input stream is NULL!");
if ( xIn.is() )
{
jsize nLen = env->GetArrayLength(buffer);
if ( nLen < len || len <= 0 )
{
ThrowException( env,
"java/io/IOException",
"len is greater or equal to the buffer size");
return -1;
}
sal_Int32 nBytesRead = -1;
Sequence< ::sal_Int8 > aData(nLen);
try
{
nBytesRead = xIn->readBytes(aData, len);
}
catch(const Exception& e)
{
StorageContainer::throwJavaException(e,env);
return -1;
}
if (nBytesRead <= 0)
return -1;
env->SetByteArrayRegion(buffer,off,nBytesRead,reinterpret_cast<jbyte*>(&aData[0]));
return nBytesRead;
}
ThrowException( env,
"java/io/IOException",
"Stream is not valid");
return -1;
}
/*
* Class: com_sun_star_sdbcx_comp_hsqldb_NativeStorageAccess
* Method: read
* Signature: (Ljava/lang/String;Ljava/lang/String;[BII)I
*/
extern "C" SAL_JNI_EXPORT jint JNICALL Java_com_sun_star_sdbcx_comp_hsqldb_NativeStorageAccess_read__Ljava_lang_String_2Ljava_lang_String_2_3BII
(JNIEnv * env, jobject obj_this,jstring name, jstring key, jbyteArray buffer, jint off, jint len)
{
#ifdef HSQLDB_DBG
OperationLogFile aOpLog( env, name, "data" );
aOpLog.logOperation( "read( byte[], int, int )" );
DataLogFile aDataLog( env, name, "data" );
return read_from_storage_stream_into_buffer( env, obj_this, name, key, buffer, off, len, &aDataLog );
#else
(void)obj_this;
return read_from_storage_stream_into_buffer( env, name, key, buffer, off, len );
#endif
}
/*
* Class: com_sun_star_sdbcx_comp_hsqldb_NativeStorageAccess
* Method: readInt
* Signature: (Ljava/lang/String;Ljava/lang/String;)I
*/
extern "C" SAL_JNI_EXPORT jint JNICALL Java_com_sun_star_sdbcx_comp_hsqldb_NativeStorageAccess_readInt
(JNIEnv * env, jobject /*obj_this*/,jstring name, jstring key)
{
#ifdef HSQLDB_DBG
OperationLogFile aOpLog( env, name, "data" );
aOpLog.logOperation( "readInt" );
#endif
std::shared_ptr<StreamHelper> pHelper = StorageContainer::getRegisteredStream(env,name,key);
Reference< XInputStream> xIn = pHelper.get() ? pHelper->getInputStream() : Reference< XInputStream>();
OSL_ENSURE(xIn.is(),"Input stream is NULL!");
if ( xIn.is() )
{
Sequence< ::sal_Int8 > aData(4);
sal_Int32 nBytesRead = -1;
try
{
nBytesRead = xIn->readBytes(aData, 4);
}
catch(const Exception& e)
{
StorageContainer::throwJavaException(e,env);
return -1;
}
if ( nBytesRead != 4 ) {
ThrowException( env,
"java/io/IOException",
"Bytes read != 4");
return -1;
}
Sequence< sal_Int32 > ch(4);
for(sal_Int32 i = 0;i < 4; ++i)
{
ch[i] = static_cast<unsigned char>(aData[i]);
}
if ((ch[0] | ch[1] | ch[2] | ch[3]) < 0)
{
ThrowException( env,
"java/io/IOException",
"One byte is < 0");
return -1;
}
jint nRet = (ch[0] << 24) + (ch[1] << 16) + (ch[2] << 8) + (ch[3] << 0);
#ifdef HSQLDB_DBG
DataLogFile aDataLog( env, name, "data" );
aDataLog.write( nRet );
aOpLog.logReturn( nRet );
#endif
return nRet;
}
ThrowException( env,
"java/io/IOException",
"No InputStream");
return -1;
}
/*
* Class: com_sun_star_sdbcx_comp_hsqldb_NativeStorageAccess
* Method: seek
* Signature: (Ljava/lang/String;Ljava/lang/String;J)V
*/
extern "C" SAL_JNI_EXPORT void JNICALL Java_com_sun_star_sdbcx_comp_hsqldb_NativeStorageAccess_seek
(JNIEnv * env, jobject /*obj_this*/,jstring name, jstring key, jlong position)
{
#ifdef HSQLDB_DBG
OperationLogFile aOpLog( env, name, "data" );
aOpLog.logOperation( "seek", position );
#endif
std::shared_ptr<StreamHelper> pHelper = StorageContainer::getRegisteredStream(env,name,key);
Reference< XSeekable> xSeek = pHelper.get() ? pHelper->getSeek() : Reference< XSeekable>();
OSL_ENSURE(xSeek.is(),"No Seekable stream!");
if ( xSeek.is() )
{
#ifdef HSQLDB_DBG
DataLogFile aDataLog( env, name, "data" );
#endif
::sal_Int64 nLen = xSeek->getLength();
if ( nLen < position)
{
static const ::sal_Int64 BUFFER_SIZE = 9192;
#ifdef HSQLDB_DBG
aDataLog.seek( nLen );
#endif
xSeek->seek(nLen);
Reference< XOutputStream> xOut = pHelper->getOutputStream();
OSL_ENSURE(xOut.is(),"No output stream!");
::sal_Int64 diff = position - nLen;
sal_Int32 n;
while( diff != 0 )
{
if ( BUFFER_SIZE < diff )
{
n = static_cast<sal_Int32>(BUFFER_SIZE);
diff = diff - BUFFER_SIZE;
}
else
{
n = static_cast<sal_Int32>(diff);
diff = 0;
}
Sequence< ::sal_Int8 > aData(n);
memset(aData.getArray(),0,n);
xOut->writeBytes(aData);
#ifdef HSQLDB_DBG
aDataLog.write( aData.getConstArray(), n );
#endif
}
}
xSeek->seek(position);
OSL_ENSURE(xSeek->getPosition() == position,"Wrong position after seeking the stream");
#ifdef HSQLDB_DBG
aDataLog.seek( position );
OSL_ENSURE( xSeek->getPosition() == aDataLog.tell(), "Wrong position after seeking the stream" );
#endif
}
}
void write_to_storage_stream_from_buffer( JNIEnv* env, jstring name, jstring key, jbyteArray buffer, jint off, jint len )
{
std::shared_ptr<StreamHelper> pHelper = StorageContainer::getRegisteredStream(env,name,key);
Reference< XOutputStream> xOut = pHelper.get() ? pHelper->getOutputStream() : Reference< XOutputStream>();
OSL_ENSURE(xOut.is(),"Stream is NULL");
try
{
if ( xOut.is() )
{
jbyte *buf = env->GetByteArrayElements(buffer,nullptr);
if (env->ExceptionCheck())
{
env->ExceptionClear();
OSL_FAIL("ExceptionClear");
}
OSL_ENSURE(buf,"buf is NULL");
if ( buf && len > 0 && len <= env->GetArrayLength(buffer))
{
Sequence< ::sal_Int8 > aData(reinterpret_cast<sal_Int8 *>(buf + off),len);
env->ReleaseByteArrayElements(buffer, buf, JNI_ABORT);
xOut->writeBytes(aData);
}
}
else
{
ThrowException( env,
"java/io/IOException",
"No OutputStream");
}
}
catch(const Exception& e)
{
OSL_FAIL("Exception caught! : write [BII)V");
StorageContainer::throwJavaException(e,env);
}
}
/*
* Class: com_sun_star_sdbcx_comp_hsqldb_NativeStorageAccess
* Method: write
* Signature: (Ljava/lang/String;Ljava/lang/String;[BII)V
*/
extern "C" SAL_JNI_EXPORT void JNICALL Java_com_sun_star_sdbcx_comp_hsqldb_NativeStorageAccess_write
(JNIEnv * env, jobject obj_this,jstring name, jstring key, jbyteArray buffer, jint off, jint len)
{
#ifdef HSQLDB_DBG
OperationLogFile aOpLog( env, name, "data" );
aOpLog.logOperation( "write( byte[], int, int )" );
DataLogFile aDataLog( env, name, "data" );
write_to_storage_stream_from_buffer( env, obj_this, name, key, buffer, off, len, &aDataLog );
#else
(void)obj_this;
write_to_storage_stream_from_buffer( env, name, key, buffer, off, len );
#endif
}
void write_to_storage_stream( JNIEnv* env, jstring name, jstring key, jint v )
{
std::shared_ptr<StreamHelper> pHelper = StorageContainer::getRegisteredStream(env,name,key);
Reference< XOutputStream> xOut = pHelper.get() ? pHelper->getOutputStream() : Reference< XOutputStream>();
OSL_ENSURE(xOut.is(),"Stream is NULL");
try
{
if ( xOut.is() )
{
Sequence< ::sal_Int8 > oneByte(4);
oneByte[0] = static_cast<sal_Int8>((v >> 24) & 0xFF);
oneByte[1] = static_cast<sal_Int8>((v >> 16) & 0xFF);
oneByte[2] = static_cast<sal_Int8>((v >> 8) & 0xFF);
oneByte[3] = static_cast<sal_Int8>((v >> 0) & 0xFF);
xOut->writeBytes(oneByte);
}
else
{
ThrowException( env,
"java/io/IOException",
"No OutputStream");
}
}
catch(const Exception& e)
{
OSL_FAIL("Exception caught! : writeBytes(aData);");
StorageContainer::throwJavaException(e,env);
}
}
/*
* Class: com_sun_star_sdbcx_comp_hsqldb_NativeStorageAccess
* Method: writeInt
* Signature: (Ljava/lang/String;Ljava/lang/String;I)V
*/
extern "C" SAL_JNI_EXPORT void JNICALL Java_com_sun_star_sdbcx_comp_hsqldb_NativeStorageAccess_writeInt
(JNIEnv * env, jobject obj_this,jstring name, jstring key, jint v)
{
#ifdef HSQLDB_DBG
OperationLogFile aOpLog( env, name, "data" );
aOpLog.logOperation( "writeInt" );
DataLogFile aDataLog( env, name, "data" );
write_to_storage_stream( env, name, key, v, &aDataLog );
#else
(void)obj_this;
write_to_storage_stream( env, name, key, v );
#endif
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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