/*************************************************************************
 *
 *  OpenOffice.org - a multi-platform office productivity suite
 *
 *  $RCSfile: javavm.hxx,v $
 *
 *  $Revision: 1.7 $
 *
 *  last change: $Author: rt $ $Date: 2005-09-08 07:59:14 $
 *
 *  The Contents of this file are made available subject to
 *  the terms of GNU Lesser General Public License Version 2.1.
 *
 *
 *    GNU Lesser General Public License Version 2.1
 *    =============================================
 *    Copyright 2005 by Sun Microsystems, Inc.
 *    901 San Antonio Road, Palo Alto, CA 94303, USA
 *
 *    This library is free software; you can redistribute it and/or
 *    modify it under the terms of the GNU Lesser General Public
 *    License version 2.1, as published by the Free Software Foundation.
 *
 *    This library 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 for more details.
 *
 *    You should have received a copy of the GNU Lesser General Public
 *    License along with this library; if not, write to the Free Software
 *    Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 *    MA  02111-1307  USA
 *
 ************************************************************************/

#if !defined INCLUDED_STOC_JAVAVM_JAVAVM_HXX
#define INCLUDED_STOC_JAVAVM_JAVAVM_HXX

#include "jvmargs.hxx"

#include "com/sun/star/container/XContainerListener.hpp"
#include "com/sun/star/lang/XInitialization.hpp"
#include "com/sun/star/java/XJavaThreadRegister_11.hpp"
#include "com/sun/star/java/XJavaVM.hpp"
#include "com/sun/star/lang/XServiceInfo.hpp"
#include "com/sun/star/uno/Reference.hxx"
#include "cppuhelper/compbase5.hxx"
#include "osl/thread.hxx"
#include "rtl/ref.hxx"

#ifndef _OSL_MUTEX_HXX_
#include <osl/mutex.hxx>
#endif
#ifndef _RTL_USTRING_HXX_
#include <rtl/ustring.hxx>
#endif

namespace com { namespace sun { namespace star {
    namespace container { class XContainer; }
    namespace uno { class XComponentContext; }
} } }
namespace jvmaccess {
    class UnoVirtualMachine;
    class VirtualMachine;
}

namespace stoc_javavm {

bool configureJava(const com::sun::star::uno::Reference<
                   com::sun::star::uno::XComponentContext>& xContext);
// The MS compiler needs a typedef here, so the JavaVirtualMachine ctor can call
// its base class ctor:
typedef
cppu::WeakComponentImplHelper5< com::sun::star::lang::XInitialization,
                                com::sun::star::lang::XServiceInfo,
                                com::sun::star::java::XJavaVM,
                                com::sun::star::java::XJavaThreadRegister_11,
                                com::sun::star::container::XContainerListener >
JavaVirtualMachine_Impl;

class JavaVirtualMachine: private osl::Mutex, public JavaVirtualMachine_Impl
{
public:
    explicit JavaVirtualMachine(
        com::sun::star::uno::Reference<
            com::sun::star::uno::XComponentContext > const & rContext);

    // XInitialization
    virtual void SAL_CALL
    initialize(com::sun::star::uno::Sequence< com::sun::star::uno::Any > const &
                   rArguments)
        throw (com::sun::star::uno::Exception);

    // XServiceInfo
    virtual rtl::OUString SAL_CALL getImplementationName()
        throw (com::sun::star::uno::RuntimeException);

    virtual sal_Bool SAL_CALL
    supportsService(rtl::OUString const & rServiceName)
        throw (com::sun::star::uno::RuntimeException);

    virtual com::sun::star::uno::Sequence< rtl::OUString > SAL_CALL
    getSupportedServiceNames() throw (com::sun::star::uno::RuntimeException);

    // XJavaVM
    virtual com::sun::star::uno::Any SAL_CALL
    getJavaVM(com::sun::star::uno::Sequence< sal_Int8 > const & rProcessId)
        throw (com::sun::star::uno::RuntimeException);

    virtual sal_Bool SAL_CALL isVMStarted()
        throw (com::sun::star::uno::RuntimeException);

    virtual sal_Bool SAL_CALL isVMEnabled()
        throw (com::sun::star::uno::RuntimeException);

    // XJavaThreadRegister_11
    virtual sal_Bool SAL_CALL isThreadAttached()
        throw (com::sun::star::uno::RuntimeException);

    virtual void SAL_CALL registerThread()
        throw (com::sun::star::uno::RuntimeException);

    virtual void SAL_CALL revokeThread()
        throw (com::sun::star::uno::RuntimeException);

    // XContainerListener
    virtual void SAL_CALL
    disposing(com::sun::star::lang::EventObject const & rSource)
        throw (com::sun::star::uno::RuntimeException);

    virtual void SAL_CALL
    elementInserted(com::sun::star::container::ContainerEvent const & rEvent)
        throw (com::sun::star::uno::RuntimeException);

    virtual void SAL_CALL
    elementRemoved(com::sun::star::container::ContainerEvent const & rEvent)
        throw (com::sun::star::uno::RuntimeException);

    virtual void SAL_CALL
    elementReplaced(com::sun::star::container::ContainerEvent const & rEvent)
        throw (com::sun::star::uno::RuntimeException);

private:
    JavaVirtualMachine(JavaVirtualMachine &); // not implemented
    void operator =(JavaVirtualMachine); // not implemented

    virtual ~JavaVirtualMachine();

    virtual void SAL_CALL disposing();

    JavaVM * createJavaVM(JVM const & jvm, JNIEnv ** pMainThreadEnv);
        // throws com::sun::star::uno::RuntimeException

    void registerConfigChangesListener();

    void setINetSettingsInVM(bool set_reset);

    void setUpUnoVirtualMachine(JNIEnv * environment);

    void handleJniException(JNIEnv * environment);

    com::sun::star::uno::Reference< com::sun::star::uno::XComponentContext >
        m_xContext;

    // the following are controlled by the 'this' mutex:
    bool m_bDisposed;
    rtl::Reference< jvmaccess::VirtualMachine > m_xVirtualMachine;
    rtl::Reference< jvmaccess::UnoVirtualMachine > m_xUnoVirtualMachine;
    JavaVM * m_pJavaVm;
        // stored as an instance member for backwards compatibility in getJavaVM
    bool m_bDontCreateJvm;
        // If the first creation of Java failed and this flag is set then the
        // next call to getJavaVM throws a RuntimException.  This is useful when
        // the second attempt to create Java might cause a crash.
    com::sun::star::uno::Reference< com::sun::star::container::XContainer >
        m_xInetConfiguration;
    com::sun::star::uno::Reference< com::sun::star::container::XContainer >
        m_xJavaConfiguration; // for Java settings

    osl::ThreadData m_aAttachGuards;
};

}

#endif // INCLUDED_STOC_JAVAVM_JAVAVM_HXX