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Diffstat (limited to 'stoc/source/javaloader/javaloader.cxx')
| -rw-r--r-- | stoc/source/javaloader/javaloader.cxx | 486 |
1 files changed, 486 insertions, 0 deletions
diff --git a/stoc/source/javaloader/javaloader.cxx b/stoc/source/javaloader/javaloader.cxx new file mode 100644 index 000000000000..566612cb2f00 --- /dev/null +++ b/stoc/source/javaloader/javaloader.cxx @@ -0,0 +1,486 @@ +/************************************************************************* + * + * 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 ); +} +} |