javaunohelper/source/javaunohelper.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include <sal/config.h>
  21
  22 #include <osl/module.hxx>
  23
  24 #include <uno/environment.hxx>
  25 #include <uno/lbnames.h>
  26 #include <uno/mapping.hxx>
  27
  28 #include <cppuhelper/factory.hxx>
  29
  30 #include <com/sun/star/lang/XMultiServiceFactory.hpp>
  31 #include <com/sun/star/registry/XRegistryKey.hpp>
  32
  33 #include <jni.h>
  34 #include <jvmaccess/unovirtualmachine.hxx>
  35
  36 #include "juhx-export-functions.hxx"
  37 #include "vm.hxx"
  38
  39 #ifdef DISABLE_DYNLOADING
  40 #include <osl/thread.h>
  41 #endif
  42
  43 using namespace ::com::sun::star;
  44 using namespace ::com::sun::star::uno;
  45
  46 /*
  47  * Class:     com_sun_star_comp_helper_SharedLibraryLoader
  48  * Method:    component_writeInfo
  49  * Signature: (Ljava/lang/String;Lcom/sun/star/lang/XMultiServiceFactory;Lcom/sun/star/registry/XRegistryKey;)Z
  50  */
  51 jboolean Java_com_sun_star_comp_helper_SharedLibraryLoader_component_1writeInfo(
  52     JNIEnv * pJEnv, SAL_UNUSED_PARAMETER jclass, jstring jLibName, jobject jSMgr,
  53     jobject jRegKey, jobject loader )
  54 {
  55     bool bRet = false;
  56
  57     const jchar* pJLibName = pJEnv->GetStringChars(jLibName, nullptr);
  58     OUString aLibName(reinterpret_cast<sal_Unicode const *>(pJLibName));
  59     pJEnv->ReleaseStringChars(jLibName, pJLibName);
  60
  61 #ifdef DISABLE_DYNLOADING
  62     (void) jSMgr;
  63     (void) jRegKey;
  64     (void) loader;
  65
  66     fprintf(stderr, "Hmm, %s called for %s\n", __PRETTY_FUNCTION__, OUStringToOString(aLibName, osl_getThreadTextEncoding()).getStr());
  67 #else
  68     osl::Module lib(aLibName, SAL_LOADMODULE_LAZY | SAL_LOADMODULE_GLOBAL);
  69     if (lib.is())
  70     {
  71         // ========================= LATEST VERSION =========================
  72         oslGenericFunction pSym = lib.getFunctionSymbol(COMPONENT_GETENV);
  73         if (pSym)
  74         {
  75             Environment java_env, loader_env;
  76
  77             const sal_Char * pEnvTypeName = nullptr;
  78             (*reinterpret_cast<component_getImplementationEnvironmentFunc>(pSym))(
  79                 &pEnvTypeName, reinterpret_cast<uno_Environment **>(&loader_env) );
  80             if (! loader_env.is())
  81             {
  82                 OUString aEnvTypeName( OUString::createFromAscii( pEnvTypeName ) );
  83                 uno_getEnvironment( reinterpret_cast<uno_Environment **>(&loader_env), aEnvTypeName.pData, nullptr );
  84             }
  85
  86             // create vm access
  87             ::rtl::Reference< ::jvmaccess::UnoVirtualMachine > vm_access(
  88                 ::javaunohelper::create_vm_access( pJEnv, loader ) );
  89             OUString java_env_name = UNO_LB_JAVA;
  90             uno_getEnvironment(
  91                 reinterpret_cast<uno_Environment **>(&java_env), java_env_name.pData, vm_access.get() );
  92
  93             pSym = lib.getFunctionSymbol(COMPONENT_WRITEINFO);
  94             if (pSym)
  95             {
  96                 if (loader_env.is() && java_env.is())
  97                 {
  98                     Mapping java2dest(java_env.get(), loader_env.get());
  99
 100                     if ( java2dest.is() )
 101                     {
 102                         void * pSMgr =
 103                             java2dest.mapInterface(
 104                                 jSMgr, cppu::UnoType<lang::XMultiServiceFactory>::get());
 105                         void * pKey =
 106                             java2dest.mapInterface(
 107                                 jRegKey, cppu::UnoType<registry::XRegistryKey>::get());
 108
 109                         uno_ExtEnvironment * env = loader_env.get()->pExtEnv;
 110                         if (pKey)
 111                         {
 112                             bRet = (*reinterpret_cast<component_writeInfoFunc>(pSym))( pSMgr, pKey );
 113
 114                             if (env)
 115                                 (*env->releaseInterface)( env, pKey );
 116                         }
 117
 118                         if (pSMgr && env)
 119                             (*env->releaseInterface)( env, pSMgr );
 120                     }
 121                 }
 122             }
 123         }
 124         lib.release();
 125     }
 126 #endif
 127     return bRet;
 128 }
 129
 130 /*
 131  * Class:     com_sun_star_comp_helper_SharedLibraryLoader
 132  * Method:    component_getFactory
 133  * Signature: (Ljava/lang/String;Ljava/lang/String;Lcom/sun/star/lang/XMultiServiceFactory;Lcom/sun/star/registry/XRegistryKey;)Ljava/lang/Object;
 134  */
 135 jobject Java_com_sun_star_comp_helper_SharedLibraryLoader_component_1getFactory(
 136     JNIEnv * pJEnv, SAL_UNUSED_PARAMETER jclass, jstring jLibName, jstring jImplName,
 137     jobject jSMgr, jobject jRegKey, jobject loader )
 138 {
 139     const jchar* pJLibName = pJEnv->GetStringChars(jLibName, nullptr);
 140     OUString aLibName(reinterpret_cast<sal_Unicode const *>(pJLibName));
 141     pJEnv->ReleaseStringChars(jLibName, pJLibName);
 142
 143 #ifdef DISABLE_DYNLOADING
 144     (void) jImplName;
 145     (void) jSMgr;
 146     (void) jRegKey;
 147     (void) loader;
 148
 149     fprintf(stderr, "Hmm, %s called for %s\n", __PRETTY_FUNCTION__, OUStringToOString(aLibName, osl_getThreadTextEncoding()).getStr());
 150 #endif
 151
 152     aLibName += SAL_DLLEXTENSION;
 153
 154     jobject joSLL_cpp = nullptr;
 155
 156 #ifndef DISABLE_DYNLOADING
 157     osl::Module lib(aLibName, SAL_LOADMODULE_LAZY | SAL_LOADMODULE_GLOBAL);
 158     if (lib.is())
 159     {
 160         // ========================= LATEST VERSION =========================
 161         oslGenericFunction pSym = lib.getFunctionSymbol(COMPONENT_GETENV);
 162         if (pSym)
 163         {
 164             Environment java_env, loader_env;
 165
 166             const sal_Char * pEnvTypeName = nullptr;
 167             (*reinterpret_cast<component_getImplementationEnvironmentFunc>(pSym))(
 168                 &pEnvTypeName, reinterpret_cast<uno_Environment **>(&loader_env) );
 169
 170             if (! loader_env.is())
 171             {
 172                 OUString aEnvTypeName( OUString::createFromAscii( pEnvTypeName ) );
 173                 uno_getEnvironment( reinterpret_cast<uno_Environment **>(&loader_env), aEnvTypeName.pData, nullptr );
 174             }
 175
 176             // create vm access
 177             ::rtl::Reference< ::jvmaccess::UnoVirtualMachine > vm_access(
 178                 ::javaunohelper::create_vm_access( pJEnv, loader ) );
 179             OUString java_env_name = UNO_LB_JAVA;
 180             uno_getEnvironment(
 181                 reinterpret_cast<uno_Environment **>(&java_env), java_env_name.pData, vm_access.get() );
 182
 183             pSym = lib.getFunctionSymbol(COMPONENT_GETFACTORY);
 184             if (pSym)
 185             {
 186                 if (loader_env.is() && java_env.is())
 187                 {
 188                     Mapping java2dest( java_env.get(), loader_env.get() );
 189                     Mapping dest2java( loader_env.get(), java_env.get() );
 190
 191                     if (dest2java.is() && java2dest.is())
 192                     {
 193                         void * pSMgr =
 194                             java2dest.mapInterface(
 195                                 jSMgr, cppu::UnoType<lang::XMultiServiceFactory>::get());
 196                         void * pKey =
 197                             java2dest.mapInterface(
 198                                 jRegKey, cppu::UnoType<registry::XRegistryKey>::get());
 199
 200                         const char* pImplName = pJEnv->GetStringUTFChars( jImplName, nullptr );
 201
 202                         void * pSSF = (*reinterpret_cast<component_getFactoryFunc>(pSym))(
 203                             pImplName, pSMgr, pKey );
 204
 205                         pJEnv->ReleaseStringUTFChars( jImplName, pImplName );
 206
 207                         uno_ExtEnvironment * env = loader_env.get()->pExtEnv;
 208
 209                         if (pKey && env)
 210                             (*env->releaseInterface)( env, pKey );
 211                         if (pSMgr && env)
 212                             (*env->releaseInterface)( env, pSMgr );
 213
 214                         if (pSSF)
 215                         {
 216                             jobject jglobal = static_cast<jobject>(dest2java.mapInterface(
 217                                 pSSF, cppu::UnoType<XInterface>::get()));
 218                             joSLL_cpp = pJEnv->NewLocalRef( jglobal );
 219                             pJEnv->DeleteGlobalRef( jglobal );
 220                             if (env)
 221                                 (*env->releaseInterface)( env, pSSF );
 222                         }
 223                     }
 224                 }
 225             }
 226         }
 227         lib.release();
 228     }
 229 #endif
 230     return joSLL_cpp;
 231 }
 232
 233 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */