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/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_desktop.hxx"
#include "dp_misc.h"
#include "dp_ucb.h"
#include "dp_persmap.h"
#include "rtl/strbuf.hxx"
#include "rtl/ustrbuf.hxx"
#include "osl/file.hxx"
#include "osl/thread.h"
using namespace ::com::sun::star;
using namespace ::com::sun::star::uno;
using namespace ::rtl;
using ::osl::File;
namespace dp_misc
{
//______________________________________________________________________________
void PersistentMap::throw_rtexc( int err, char const * pmsg ) const
{
OUStringBuffer buf;
buf.appendAscii( RTL_CONSTASCII_STRINGPARAM("[") );
buf.append( m_sysPath );
buf.appendAscii( RTL_CONSTASCII_STRINGPARAM("] Berkeley Db error (") );
buf.append( static_cast<sal_Int32>(err) );
buf.appendAscii( RTL_CONSTASCII_STRINGPARAM("): ") );
if (pmsg == 0)
pmsg = DbEnv::strerror(err);
const OString msg(pmsg);
buf.append( OUString( msg.getStr(), msg.getLength(),
osl_getThreadTextEncoding() ) );
const OUString msg_(buf.makeStringAndClear());
OSL_ENSURE( 0, rtl::OUStringToOString(
msg_, RTL_TEXTENCODING_UTF8 ).getStr() );
throw RuntimeException( msg_, Reference<XInterface>() );
}
//______________________________________________________________________________
PersistentMap::~PersistentMap()
{
try {
m_db.close(0);
}
catch (DbException & exc) {
(void) exc; // avoid warnings
OSL_ENSURE( 0, DbEnv::strerror( exc.get_errno() ) );
}
}
//______________________________________________________________________________
PersistentMap::PersistentMap( OUString const & url_, bool readOnly )
: m_db( 0, 0 )
{
try {
OUString url( expandUnoRcUrl(url_) );
if ( File::getSystemPathFromFileURL( url, m_sysPath ) != File::E_None )
{
OSL_ASSERT( false );
}
OString cstr_sysPath(
OUStringToOString( m_sysPath, RTL_TEXTENCODING_UTF8 ) );
char const * pcstr_sysPath = cstr_sysPath.getStr();
u_int32_t flags = DB_CREATE;
if (readOnly) {
flags = DB_RDONLY;
if (! create_ucb_content(
0, url,
Reference<com::sun::star::ucb::XCommandEnvironment>(),
false /* no throw */ )) {
// ignore non-existent file in read-only mode: simulate empty db
pcstr_sysPath = 0;
flags = DB_CREATE;
}
}
int err = m_db.open(
// xxx todo: DB_THREAD, DB_DBT_MALLOC currently not used
0, pcstr_sysPath, 0, DB_HASH, flags/* | DB_THREAD*/, 0664 /* fs mode */ );
if (err != 0)
throw_rtexc(err);
}
catch (DbException & exc) {
throw_rtexc( exc.get_errno(), exc.what() );
}
}
//______________________________________________________________________________
PersistentMap::PersistentMap()
: m_db( 0, 0 )
{
try {
// xxx todo: DB_THREAD, DB_DBT_MALLOC currently not used
int err = m_db.open( 0, 0, 0, DB_HASH, DB_CREATE/* | DB_THREAD*/, 0 );
if (err != 0)
throw_rtexc(err);
}
catch (DbException & exc) {
throw_rtexc( exc.get_errno(), exc.what() );
}
}
//______________________________________________________________________________
bool PersistentMap::has( OString const & key ) const
{
return get( 0, key );
}
//______________________________________________________________________________
bool PersistentMap::get( OString * value, OString const & key ) const
{
try {
Dbt dbKey( const_cast< sal_Char * >(key.getStr()), key.getLength() );
Dbt dbData;
int err = m_db.get( 0, &dbKey, &dbData, 0 );
if (err == DB_NOTFOUND)
return false;
if (err == 0) {
if (value != 0) {
*value = OString(
static_cast< sal_Char const * >(dbData.get_data()),
dbData.get_size() );
}
return true;
}
throw_rtexc(err);
}
catch (DbException & exc) {
throw_rtexc( exc.get_errno(), exc.what() );
}
return false; // avoiding warning
}
//______________________________________________________________________________
void PersistentMap::put( OString const & key, OString const & value )
{
try {
Dbt dbKey( const_cast< sal_Char * >(key.getStr()), key.getLength() );
Dbt dbData( const_cast< sal_Char * >(
value.getStr()), value.getLength() );
int err = m_db.put( 0, &dbKey, &dbData, 0 );
if (err == 0) {
#if OSL_DEBUG_LEVEL > 0
OString v;
OSL_ASSERT( get( &v, key ) );
OSL_ASSERT( v.equals( value ) );
#endif
err = m_db.sync(0);
}
if (err != 0)
throw_rtexc(err);
}
catch (DbException & exc) {
throw_rtexc( exc.get_errno(), exc.what() );
}
}
//______________________________________________________________________________
bool PersistentMap::erase( OString const & key, bool flush_immediately )
{
try {
Dbt dbKey( const_cast< sal_Char * >(key.getStr()), key.getLength() );
int err = m_db.del( &dbKey, 0 );
if (err == 0) {
if (flush_immediately) {
err = m_db.sync(0);
if (err != 0)
throw_rtexc(err);
}
return true;
}
if (err == DB_NOTFOUND)
return false;
throw_rtexc(err);
}
catch (DbException & exc) {
throw_rtexc( exc.get_errno(), exc.what() );
}
return false; // avoiding warning
}
//______________________________________________________________________________
t_string2string_map PersistentMap::getEntries() const
{
try {
Dbc * pcurs = 0;
int err = m_db.cursor( 0, &pcurs, 0 );
if (err != 0)
throw_rtexc(err);
t_string2string_map ret;
for (;;) {
Dbt dbKey, dbData;
err = pcurs->get( &dbKey, &dbData, DB_NEXT );
if (err == DB_NOTFOUND)
break;
if (err != 0)
throw_rtexc(err);
::std::pair<t_string2string_map::iterator, bool > insertion(
ret.insert( t_string2string_map::value_type(
t_string2string_map::value_type(
OString( static_cast< sal_Char const * >(
dbKey.get_data()),
dbKey.get_size() ),
OString( static_cast< sal_Char const * >(
dbData.get_data()),
dbData.get_size() ) ) ) ) );
OSL_ASSERT( insertion.second );
}
err = pcurs->close();
if (err != 0)
throw_rtexc(err);
return ret;
}
catch (DbException & exc) {
throw_rtexc( exc.get_errno(), exc.what() );
}
return t_string2string_map(); // avoiding warning
}
}
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