# Cppcheck report - LibreOffice: connectivity/source/drivers/kab/KConnection.cxx

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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 "KConnection.hxx"
    #include "KDatabaseMetaData.hxx"
    #include "KStatement.hxx"
    #include "KPreparedStatement.hxx"
    #include "KDriver.hxx"
    #include "KCatalog.hxx"
    #include <com/sun/star/sdbc/ColumnValue.hpp>
    #include <com/sun/star/sdbc/TransactionIsolation.hpp>
    #include <shell/kde_headers.h>

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

    IMPLEMENT_SERVICE_INFO(KabConnection, "com.sun.star.sdbc.drivers.KabConnection", "com.sun.star.sdbc.Connection")

    KabConnection::KabConnection(KabDriver* _pDriver)
             : OMetaConnection_BASE(m_aMutex),
             OSubComponent<KabConnection, KabConnection_BASE>((::cppu::OWeakObject*)_pDriver, this),
             m_xMetaData(NULL),
             m_pAddressBook(NULL),
             m_pDriver(_pDriver)
    {
        m_pDriver->acquire();
    }

    KabConnection::~KabConnection()
    {
        if (!isClosed())
            close();

        m_pDriver->release();
        m_pDriver = NULL;
    }

    void SAL_CALL KabConnection::release() throw()
    {
        relase_ChildImpl();
    }

    void KabConnection::construct(const OUString&, const Sequence< PropertyValue >&) throw(SQLException)
    {
        osl_atomic_increment( &m_refCount );

        // create a KDE address book object
        m_pAddressBook = KABC::StdAddressBook::self();
        KABC::StdAddressBook::setAutomaticSave(false);
    // perhaps we should analyze the URL to know whether the addressbook is local, over LDAP, etc...
    // perhaps we should get some user and password information from "info" properties

        osl_atomic_decrement( &m_refCount );
    }
    // XServiceInfo

    Reference< XStatement > SAL_CALL KabConnection::createStatement(  ) throw(SQLException, RuntimeException, std::exception)
    {
        ::osl::MutexGuard aGuard( m_aMutex );
        checkDisposed(KabConnection_BASE::rBHelper.bDisposed);

        // create a statement
        // the statement can only be executed once
        Reference< XStatement > xReturn = new KabStatement(this);
        m_aStatements.push_back(WeakReferenceHelper(xReturn));
        return xReturn;
    }

    Reference< XPreparedStatement > SAL_CALL KabConnection::prepareStatement( const OUString& _sSql ) throw(SQLException, RuntimeException, std::exception)
    {
        ::osl::MutexGuard aGuard( m_aMutex );
        checkDisposed(KabConnection_BASE::rBHelper.bDisposed);

        // create a statement
        // the statement can only be executed more than once
        Reference< XPreparedStatement > xReturn = new KabPreparedStatement(this, _sSql);
        m_aStatements.push_back(WeakReferenceHelper(xReturn));
        return xReturn;
    }

    Reference< XPreparedStatement > SAL_CALL KabConnection::prepareCall( const OUString& ) throw(SQLException, RuntimeException, std::exception)
    {
        ::osl::MutexGuard aGuard( m_aMutex );
        checkDisposed(KabConnection_BASE::rBHelper.bDisposed);

        // not implemented yet :-) a task to do
        return NULL;
    }

    OUString SAL_CALL KabConnection::nativeSQL( const OUString& _sSql ) throw(SQLException, RuntimeException, std::exception)
    {
        ::osl::MutexGuard aGuard( m_aMutex );
        // when you need to transform SQL92 to you driver specific you can do it here

        return _sSql;
    }

    void SAL_CALL KabConnection::setAutoCommit( sal_Bool ) throw(SQLException, RuntimeException, std::exception)
    {
        ::osl::MutexGuard aGuard( m_aMutex );
        checkDisposed(KabConnection_BASE::rBHelper.bDisposed);
        // here you  have to set your commit mode please have a look at the jdbc documentation to get a clear explanation
    }

    sal_Bool SAL_CALL KabConnection::getAutoCommit(  ) throw(SQLException, RuntimeException, std::exception)
    {
        ::osl::MutexGuard aGuard( m_aMutex );
        checkDisposed(KabConnection_BASE::rBHelper.bDisposed);
        // you have to distinguish which if you are in autocommit mode or not
        // at normal case true should be fine here

        return sal_True;
    }

    void SAL_CALL KabConnection::commit(  ) throw(SQLException, RuntimeException, std::exception)
    {
        ::osl::MutexGuard aGuard( m_aMutex );
        checkDisposed(KabConnection_BASE::rBHelper.bDisposed);

        // when you database does support transactions you should commit here
    }

    void SAL_CALL KabConnection::rollback(  ) throw(SQLException, RuntimeException, std::exception)
    {
        ::osl::MutexGuard aGuard( m_aMutex );
        checkDisposed(KabConnection_BASE::rBHelper.bDisposed);

        // same as commit but for the other case
    }

    sal_Bool SAL_CALL KabConnection::isClosed(  ) throw(SQLException, RuntimeException, std::exception)
    {
        ::osl::MutexGuard aGuard( m_aMutex );

        // just simple -> we are closed when we are disposed, that means someone called dispose(); (XComponent)
        return KabConnection_BASE::rBHelper.bDisposed;
    }

    Reference< XDatabaseMetaData > SAL_CALL KabConnection::getMetaData(  ) throw(SQLException, RuntimeException, std::exception)
    {
        ::osl::MutexGuard aGuard( m_aMutex );
        checkDisposed(KabConnection_BASE::rBHelper.bDisposed);

        // here we have to create the class with biggest interface
        // The answer is 42 :-)
        Reference< XDatabaseMetaData > xMetaData = m_xMetaData;
        if (!xMetaData.is())
        {
            xMetaData = new KabDatabaseMetaData(this); // need the connection because it can return it
            m_xMetaData = xMetaData;
        }

        return xMetaData;
    }

    void SAL_CALL KabConnection::setReadOnly( sal_Bool ) throw(SQLException, RuntimeException, std::exception)
    {
        ::osl::MutexGuard aGuard( m_aMutex );
        checkDisposed(KabConnection_BASE::rBHelper.bDisposed);

        // set you connection to readonly
    }

    sal_Bool SAL_CALL KabConnection::isReadOnly(  ) throw(SQLException, RuntimeException, std::exception)
    {
        ::osl::MutexGuard aGuard( m_aMutex );
        checkDisposed(KabConnection_BASE::rBHelper.bDisposed);

        // return if your connection to readonly
        return sal_False;
    }

    void SAL_CALL KabConnection::setCatalog( const OUString& ) throw(SQLException, RuntimeException, std::exception)
    {
        ::osl::MutexGuard aGuard( m_aMutex );
        checkDisposed(KabConnection_BASE::rBHelper.bDisposed);

        // if your database doesn't work with catalogs you go to next method otherwise you know what to do
    }

    OUString SAL_CALL KabConnection::getCatalog(  ) throw(SQLException, RuntimeException, std::exception)
    {
        ::osl::MutexGuard aGuard( m_aMutex );
        checkDisposed(KabConnection_BASE::rBHelper.bDisposed);

        // return your current catalog
        return OUString();
    }

    void SAL_CALL KabConnection::setTransactionIsolation( sal_Int32 ) throw(SQLException, RuntimeException, std::exception)
    {
        ::osl::MutexGuard aGuard( m_aMutex );
        checkDisposed(KabConnection_BASE::rBHelper.bDisposed);

        // set your isolation level
        // please have a look at @see com.sun.star.sdbc.TransactionIsolation
    }

    sal_Int32 SAL_CALL KabConnection::getTransactionIsolation(  ) throw(SQLException, RuntimeException, std::exception)
    {
        ::osl::MutexGuard aGuard( m_aMutex );
        checkDisposed(KabConnection_BASE::rBHelper.bDisposed);

        // please have a look at @see com.sun.star.sdbc.TransactionIsolation
        return TransactionIsolation::NONE;
    }

    Reference< ::com::sun::star::container::XNameAccess > SAL_CALL KabConnection::getTypeMap(  ) throw(SQLException, RuntimeException, std::exception)
    {
        ::osl::MutexGuard aGuard( m_aMutex );
        checkDisposed(KabConnection_BASE::rBHelper.bDisposed);

        // if your driver has special database types you can return it here

        return NULL;
    }

    void SAL_CALL KabConnection::setTypeMap( const Reference< ::com::sun::star::container::XNameAccess >& ) throw(SQLException, RuntimeException, std::exception)
    {
        // the other way around
    }

    // XCloseable
    void SAL_CALL KabConnection::close(  ) throw(SQLException, RuntimeException, std::exception)
    {
        {
            ::osl::MutexGuard aGuard( m_aMutex );
            checkDisposed(KabConnection_BASE::rBHelper.bDisposed);
        }
        dispose();
    }

    // XWarningsSupplier
    Any SAL_CALL KabConnection::getWarnings(  ) throw(SQLException, RuntimeException, std::exception)
    {
        // when you collected some warnings -> return it
        return Any();
    }

    void SAL_CALL KabConnection::clearWarnings(  ) throw(SQLException, RuntimeException, std::exception)
    {
        // you should clear your collected warnings here
    }

    void KabConnection::disposing()
    {
        // we noticed that we should be destroied in near future so we have to dispose our statements
        ::osl::MutexGuard aGuard(m_aMutex);

        for (OWeakRefArray::iterator i = m_aStatements.begin(); m_aStatements.end() != i; ++i)
        {
            Reference< XComponent > xComp(i->get(), UNO_QUERY);
            if (xComp.is())
                xComp->dispose();
        }
        m_aStatements.clear();

        if (m_pAddressBook != NULL)
        {
            KABC::StdAddressBook::close();
            m_pAddressBook = NULL;
        }

        m_xMetaData = ::com::sun::star::uno::WeakReference< ::com::sun::star::sdbc::XDatabaseMetaData>();

        dispose_ChildImpl();
        KabConnection_BASE::disposing();
    }

    Reference< XTablesSupplier > SAL_CALL KabConnection::createCatalog()
    {
        ::osl::MutexGuard aGuard( m_aMutex );

        Reference< XTablesSupplier > xTab = m_xCatalog;
        if (!m_xCatalog.is())
        {
            KabCatalog *pCat = new KabCatalog(this);
            xTab = pCat;
            m_xCatalog = xTab;
        }
        return xTab;
    }

    ::KABC::AddressBook* KabConnection::getAddressBook() const
    {
        return m_pAddressBook;
    }

    extern "C" SAL_DLLPUBLIC_EXPORT void*  SAL_CALL createKabConnection( void* _pDriver )<--- The function 'createKabConnection' is never used.
    {
        KabConnection* pConnection = new KabConnection( static_cast< KabDriver* >( _pDriver ) );
        // by definition, the pointer crossing library boundaries as void ptr is acquired once
        pConnection->acquire();
        return pConnection;
    }

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