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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_stoc.hxx"
#include <cstdarg>
#include <osl/diagnose.h>
#include <osl/process.h>
#include <rtl/process.h>
#include <rtl/ustrbuf.hxx>
#include <uno/environment.h>
#include <uno/mapping.hxx>
#include "com/sun/star/uno/RuntimeException.hpp"
#include <cppuhelper/servicefactory.hxx>
#ifdef LINUX
#undef minor
#undef major
#endif
#include <com/sun/star/java/XJavaVM.hpp>
#include <com/sun/star/lang/XMultiComponentFactory.hpp>
#include "jni.h"
#include <cppuhelper/factory.hxx>
#include <cppuhelper/implementationentry.hxx>
#include <cppuhelper/implbase2.hxx>
#include <com/sun/star/loader/XImplementationLoader.hpp>
#include <com/sun/star/lang/IllegalArgumentException.hpp>
#include <com/sun/star/lang/XServiceInfo.hpp>
#include <com/sun/star/lang/XInitialization.hpp>
#include <com/sun/star/registry/XRegistryKey.hpp>
#include "jvmaccess/unovirtualmachine.hxx"
#include "jvmaccess/virtualmachine.hxx"
namespace css = com::sun::star;
using namespace ::com::sun::star::java;
using namespace ::com::sun::star::lang;
using namespace ::com::sun::star::loader;
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::registry;
using namespace ::cppu;
using namespace ::rtl;
using namespace ::osl;
namespace stoc_javaloader {
static Mutex & getInitMutex();
static Sequence< OUString > loader_getSupportedServiceNames()
{
static Sequence < OUString > *pNames = 0;
if( ! pNames )
{
MutexGuard guard( Mutex::getGlobalMutex() );
if( !pNames )
{
static Sequence< OUString > seqNames(2);
seqNames.getArray()[0] = OUString(
RTL_CONSTASCII_USTRINGPARAM( "com.sun.star.loader.Java") );
seqNames.getArray()[1] = OUString(
RTL_CONSTASCII_USTRINGPARAM( "com.sun.star.loader.Java2") );
pNames = &seqNames;
}
}
return *pNames;
}
static OUString loader_getImplementationName()
{
static OUString *pImplName = 0;
if( ! pImplName )
{
MutexGuard guard( Mutex::getGlobalMutex() );
if( ! pImplName )
{
static OUString implName(
RTL_CONSTASCII_USTRINGPARAM( "com.sun.star.comp.stoc.JavaComponentLoader" ) );
pImplName = &implName;
}
}
return *pImplName;
}
class JavaComponentLoader : public WeakImplHelper2<XImplementationLoader, XServiceInfo>
{
css::uno::Reference<XComponentContext> m_xComponentContext;
/** Do not use m_javaLoader directly. Instead use getJavaLoader.
*/
css::uno::Reference<XImplementationLoader> m_javaLoader;
/** The retured Reference contains a null pointer if the office is not configured
to run java.
@exception com::sun::star::uno::RuntimeException
If the Java implementation of the loader could not be obtained, for reasons other
then that java was not configured the RuntimeException is thrown.
*/
const css::uno::Reference<XImplementationLoader> & getJavaLoader();
public:
JavaComponentLoader(const css::uno::Reference<XComponentContext> & xCtx)
throw(RuntimeException);
virtual ~JavaComponentLoader() throw();
public:
// XServiceInfo
virtual OUString SAL_CALL getImplementationName() throw(RuntimeException);
virtual sal_Bool SAL_CALL supportsService(const OUString& ServiceName)
throw(RuntimeException);
virtual Sequence<OUString> SAL_CALL getSupportedServiceNames()
throw(RuntimeException);
// XImplementationLoader
virtual css::uno::Reference<XInterface> SAL_CALL activate(
const OUString& implementationName, const OUString& implementationLoaderUrl,
const OUString& locationUrl, const css::uno::Reference<XRegistryKey>& xKey)
throw(CannotActivateFactoryException, RuntimeException);
virtual sal_Bool SAL_CALL writeRegistryInfo(
const css::uno::Reference<XRegistryKey>& xKey,
const OUString& implementationLoaderUrl, const OUString& locationUrl)
throw(CannotRegisterImplementationException, RuntimeException);
};
const css::uno::Reference<XImplementationLoader> & JavaComponentLoader::getJavaLoader()
{
MutexGuard aGuard(getInitMutex());
if (m_javaLoader.is())
return m_javaLoader;
uno_Environment * pJava_environment = NULL;
uno_Environment * pUno_environment = NULL;
typelib_InterfaceTypeDescription * pType_XImplementationLoader = 0;
try {
// get a java vm, where we can create a loader
css::uno::Reference<XJavaVM> javaVM_xJavaVM(
m_xComponentContext->getValueByName(
OUString(RTL_CONSTASCII_USTRINGPARAM(
"/singletons/"
"com.sun.star.java.theJavaVirtualMachine"))),
UNO_QUERY_THROW);
// Use the special protocol of XJavaVM.getJavaVM: If the passed in
// process ID has an extra 17th byte of value one, the returned any
// contains a pointer to a jvmaccess::UnoVirtualMachine, instead of the
// underlying JavaVM pointer:
Sequence<sal_Int8> processID(17);
rtl_getGlobalProcessId(reinterpret_cast<sal_uInt8 *>(processID.getArray()));
processID[16] = 1;
// We get a non-refcounted pointer to a jvmaccess::UnoVirtualMachine
// from the XJavaVM service (the pointer is guaranteed to be valid
// as long as our reference to the XJavaVM service lasts), and
// convert the non-refcounted pointer into a refcounted one
// immediately:
OSL_ENSURE(sizeof (sal_Int64)
>= sizeof (jvmaccess::UnoVirtualMachine *),
"Pointer cannot be represented as sal_Int64");
sal_Int64 nPointer = reinterpret_cast< sal_Int64 >(
static_cast< jvmaccess::UnoVirtualMachine * >(0));
javaVM_xJavaVM->getJavaVM(processID) >>= nPointer;
rtl::Reference< jvmaccess::UnoVirtualMachine > xVirtualMachine(
reinterpret_cast< jvmaccess::UnoVirtualMachine * >(nPointer));
if (!xVirtualMachine.is())
//throw RuntimeException(OUString(RTL_CONSTASCII_USTRINGPARAM(
// "javaloader error - JavaVirtualMachine service could not provide a VM")),
// css::uno::Reference<XInterface>());
// We must not throw a RuntimeException, because this might end the applications.
// It is ok if java components
// are not working because the office can be installed without Java support.
return m_javaLoader; // null-ref
try
{
jvmaccess::VirtualMachine::AttachGuard aGuard2(
xVirtualMachine->getVirtualMachine());
JNIEnv * pJNIEnv = aGuard2.getEnvironment();
// instantiate the java JavaLoader
jclass jcClassLoader = pJNIEnv->FindClass("java/lang/ClassLoader");
if(pJNIEnv->ExceptionOccurred())
throw RuntimeException(OUString(RTL_CONSTASCII_USTRINGPARAM(
"javaloader error - could not find class java/lang/ClassLoader")),
css::uno::Reference<XInterface>());
jmethodID jmLoadClass = pJNIEnv->GetMethodID(
jcClassLoader, "loadClass",
"(Ljava/lang/String;)Ljava/lang/Class;");
if(pJNIEnv->ExceptionOccurred())
throw RuntimeException(OUString(RTL_CONSTASCII_USTRINGPARAM(
"javaloader error - could not find method java/lang/ClassLoader.loadClass")),
css::uno::Reference<XInterface>());
jvalue arg;
arg.l = pJNIEnv->NewStringUTF(
"com.sun.star.comp.loader.JavaLoader");
if(pJNIEnv->ExceptionOccurred())
throw RuntimeException(OUString(RTL_CONSTASCII_USTRINGPARAM(
"javaloader error - could not create string")),
css::uno::Reference<XInterface>());
jclass jcJavaLoader = static_cast< jclass >(
pJNIEnv->CallObjectMethodA(
static_cast< jobject >(xVirtualMachine->getClassLoader()),
jmLoadClass, &arg));
if(pJNIEnv->ExceptionOccurred())
throw RuntimeException(OUString(RTL_CONSTASCII_USTRINGPARAM(
"javaloader error - could not find class com/sun/star/comp/loader/JavaLoader")),
css::uno::Reference<XInterface>());
jmethodID jmJavaLoader_init = pJNIEnv->GetMethodID(jcJavaLoader, "<init>", "()V");
if(pJNIEnv->ExceptionOccurred())
throw RuntimeException(OUString(RTL_CONSTASCII_USTRINGPARAM(
"javaloader error - instantiation of com.sun.star.comp.loader.JavaLoader failed")),
css::uno::Reference<XInterface>());
jobject joJavaLoader = pJNIEnv->NewObject(jcJavaLoader, jmJavaLoader_init);
if(pJNIEnv->ExceptionOccurred())
throw RuntimeException(OUString(RTL_CONSTASCII_USTRINGPARAM(
"javaloader error - instantiation of com.sun.star.comp.loader.JavaLoader failed")),
css::uno::Reference<XInterface>());
// map the java JavaLoader to this environment
OUString sJava(RTL_CONSTASCII_USTRINGPARAM("java"));
uno_getEnvironment(&pJava_environment, sJava.pData,
xVirtualMachine.get());
if(!pJava_environment)
throw RuntimeException(OUString(RTL_CONSTASCII_USTRINGPARAM(
"javaloader error - no Java environment available")), css::uno::Reference<XInterface>());
// why is there no convinient contructor?
OUString sCppu_current_lb_name(RTL_CONSTASCII_USTRINGPARAM(CPPU_CURRENT_LANGUAGE_BINDING_NAME));
uno_getEnvironment(&pUno_environment, sCppu_current_lb_name.pData, NULL);
if(!pUno_environment)
throw RuntimeException(OUString(RTL_CONSTASCII_USTRINGPARAM(
"javaloader error - no C++ environment available")), css::uno::Reference<XInterface>());
Mapping java_curr(pJava_environment, pUno_environment);
if(!java_curr.is())
throw RuntimeException(OUString(RTL_CONSTASCII_USTRINGPARAM(
"javaloader error - no mapping from java to C++ ")), css::uno::Reference<XInterface>());
// release java environment
pJava_environment->release(pJava_environment);
pJava_environment = NULL;
// release uno environment
pUno_environment->release(pUno_environment);
pUno_environment = NULL;
getCppuType((css::uno::Reference<XImplementationLoader> *) 0).
getDescription((typelib_TypeDescription **) & pType_XImplementationLoader);
if(!pType_XImplementationLoader)
throw RuntimeException(OUString(RTL_CONSTASCII_USTRINGPARAM(
"javaloader error - no type information for XImplementationLoader")),
css::uno::Reference<XInterface>());
m_javaLoader = css::uno::Reference<XImplementationLoader>(reinterpret_cast<XImplementationLoader *>(
java_curr.mapInterface(joJavaLoader, pType_XImplementationLoader)));
pJNIEnv->DeleteLocalRef( joJavaLoader );
if(!m_javaLoader.is())
throw RuntimeException(OUString(RTL_CONSTASCII_USTRINGPARAM(
"javaloader error - mapping of java XImplementationLoader to c++ failed")),
css::uno::Reference<XInterface>());
typelib_typedescription_release(reinterpret_cast<typelib_TypeDescription *>(pType_XImplementationLoader));
pType_XImplementationLoader = NULL;
}
catch (jvmaccess::VirtualMachine::AttachGuard::CreationException &)
{
throw RuntimeException(
OUString(RTL_CONSTASCII_USTRINGPARAM(
"jvmaccess::VirtualMachine::AttachGuard"
"::CreationException")),0);
}
// set the service manager at the javaloader
css::uno::Reference<XInitialization> javaLoader_XInitialization(m_javaLoader, UNO_QUERY);
if(!javaLoader_XInitialization.is())
throw RuntimeException(OUString(RTL_CONSTASCII_USTRINGPARAM(
"javaloader error - initialization of java javaloader failed, no XInitialization")),
css::uno::Reference<XInterface>());
Any any;
any <<= css::uno::Reference<XMultiComponentFactory>(
m_xComponentContext->getServiceManager());
javaLoader_XInitialization->initialize(Sequence<Any>(&any, 1));
}
catch(RuntimeException &) {
if(pJava_environment)
pJava_environment->release(pJava_environment);
if(pUno_environment)
pUno_environment->release(pUno_environment);
if(pType_XImplementationLoader)
typelib_typedescription_release(
reinterpret_cast<typelib_TypeDescription *>(pType_XImplementationLoader));
throw;
}
OSL_TRACE("javaloader.cxx: mapped javaloader - 0x%x", m_javaLoader.get());
return m_javaLoader;
}
JavaComponentLoader::JavaComponentLoader(const css::uno::Reference<XComponentContext> & xCtx) throw(RuntimeException) :
m_xComponentContext(xCtx)
{
}
JavaComponentLoader::~JavaComponentLoader() throw()
{
}
// XServiceInfo
OUString SAL_CALL JavaComponentLoader::getImplementationName()
throw(::com::sun::star::uno::RuntimeException)
{
return loader_getImplementationName();
}
sal_Bool SAL_CALL JavaComponentLoader::supportsService(const OUString & ServiceName)
throw(::com::sun::star::uno::RuntimeException)
{
sal_Bool bSupport = sal_False;
Sequence<OUString> aSNL = getSupportedServiceNames();
const OUString * pArray = aSNL.getArray();
for(sal_Int32 i = 0; i < aSNL.getLength() && !bSupport; ++ i)
bSupport = pArray[i] == ServiceName;
return bSupport;
}
Sequence<OUString> SAL_CALL JavaComponentLoader::getSupportedServiceNames()
throw(::com::sun::star::uno::RuntimeException)
{
return loader_getSupportedServiceNames();
}
// XImplementationLoader
sal_Bool SAL_CALL JavaComponentLoader::writeRegistryInfo(
const css::uno::Reference<XRegistryKey> & xKey, const OUString & blabla,
const OUString & rLibName)
throw(CannotRegisterImplementationException, RuntimeException)
{
const css::uno::Reference<XImplementationLoader> & loader = getJavaLoader();
if (loader.is())
return loader->writeRegistryInfo(xKey, blabla, rLibName);
else
throw CannotRegisterImplementationException(
OUString(RTL_CONSTASCII_USTRINGPARAM("Could not create Java implementation loader")), NULL);
}
css::uno::Reference<XInterface> SAL_CALL JavaComponentLoader::activate(
const OUString & rImplName, const OUString & blabla, const OUString & rLibName,
const css::uno::Reference<XRegistryKey> & xKey)
throw(CannotActivateFactoryException, RuntimeException)
{
const css::uno::Reference<XImplementationLoader> & loader = getJavaLoader();
if (loader.is())
return loader->activate(rImplName, blabla, rLibName, xKey);
else
throw CannotActivateFactoryException(
OUString(RTL_CONSTASCII_USTRINGPARAM("Could not create Java implementation loader")), NULL);
}
static Mutex & getInitMutex()
{
static Mutex * pMutex = 0;
if( ! pMutex )
{
MutexGuard guard( Mutex::getGlobalMutex() );
if( ! pMutex )
{
static Mutex mutex;
pMutex = &mutex;
}
}
return *pMutex;
}
css::uno::Reference<XInterface> SAL_CALL JavaComponentLoader_CreateInstance(const css::uno::Reference<XComponentContext> & xCtx) throw(Exception)
{
css::uno::Reference<XInterface> xRet;
try {
MutexGuard guard( getInitMutex() );
// The javaloader is never destroyed and there can be only one!
// Note that the first context wins ....
static css::uno::Reference< XInterface > *pStaticRef = 0;
if( pStaticRef )
{
xRet = *pStaticRef;
}
else
{
xRet = *new JavaComponentLoader(xCtx);
pStaticRef = new css::uno::Reference< XInterface > ( xRet );
}
}
catch(RuntimeException & runtimeException) {
OString message = OUStringToOString(runtimeException.Message, RTL_TEXTENCODING_ASCII_US);
osl_trace("javaloader - could not init javaloader cause of %s", message.getStr());
throw;
}
return xRet;
}
} //end namespace
using namespace stoc_javaloader;
static struct ImplementationEntry g_entries[] =
{
{
JavaComponentLoader_CreateInstance, loader_getImplementationName,
loader_getSupportedServiceNames, createSingleComponentFactory,
0 , 0
},
{ 0, 0, 0, 0, 0, 0 }
};
extern "C"
{
// NOTE: component_canUnload is not exported, as the library cannot be unloaded.
//==================================================================================================
void SAL_CALL component_getImplementationEnvironment(
const sal_Char ** ppEnvTypeName, uno_Environment ** )
{
*ppEnvTypeName = CPPU_CURRENT_LANGUAGE_BINDING_NAME;
}
//==================================================================================================
sal_Bool SAL_CALL component_writeInfo(
void * pServiceManager, void * pRegistryKey )
{
return component_writeInfoHelper( pServiceManager, pRegistryKey, g_entries );
}
//==================================================================================================
void * SAL_CALL component_getFactory(
const sal_Char * pImplName, void * pServiceManager, void * pRegistryKey )
{
return component_getFactoryHelper( pImplName, pServiceManager, pRegistryKey , g_entries );
}
}
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