0N/A/*
2362N/A * Copyright (c) 2006, Oracle and/or its affiliates. All rights reserved.
0N/A *
0N/A * Redistribution and use in source and binary forms, with or without
0N/A * modification, are permitted provided that the following conditions
0N/A * are met:
0N/A *
0N/A * - Redistributions of source code must retain the above copyright
0N/A * notice, this list of conditions and the following disclaimer.
0N/A *
0N/A * - Redistributions in binary form must reproduce the above copyright
0N/A * notice, this list of conditions and the following disclaimer in the
0N/A * documentation and/or other materials provided with the distribution.
0N/A *
2362N/A * - Neither the name of Oracle nor the names of its
0N/A * contributors may be used to endorse or promote products derived
0N/A * from this software without specific prior written permission.
0N/A *
0N/A * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
0N/A * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
0N/A * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
0N/A * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
0N/A * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
0N/A * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
0N/A * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
0N/A * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
0N/A * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
0N/A * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
0N/A * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
0N/A */
0N/A
4378N/A/*
4378N/A * This source code is provided to illustrate the usage of a given feature
4378N/A * or technique and has been deliberately simplified. Additional steps
4378N/A * required for a production-quality application, such as security checks,
4378N/A * input validation and proper error handling, might not be present in
4378N/A * this sample code.
4378N/A */
4378N/A
4378N/A
0N/A#include <memory.h>
0N/A#include <stdlib.h>
0N/A#include "jinvokerExp.h"
0N/A
0N/Astatic int g_nExitCode = 0;
0N/A
0N/Avoid system_exit(jint nCode){
0N/A g_nExitCode = nCode;
0N/A}
0N/A
0N/A/*
0N/AAllocating and providing the JVM init argumets.
0N/ABy MakeJavaVMInitArgs() it is provided two options: providing CLASSPATH
0N/Aenvironment variable value and function java.lang.System.exit()
0N/Aredefinition in order to get the exit code.
0N/ASee the description of the JNI API in
0N/Ahttp://jre.sfbay/java/re/jdk/6/promoted/latest/docs/technotes/guides/jni/spec/invocation.html#wp9502
0N/A*/
0N/A
0N/Aint MakeJavaVMInitArgs( void** ppArgs ){
0N/A
0N/A int nOptSize = 2;
0N/A JavaVMInitArgs* pArgs = new JavaVMInitArgs();
0N/A JavaVMOption* pOptions = new JavaVMOption[nOptSize];
0N/A
0N/A //provide CLASSPATH value to java.class.path
0N/A
0N/A char* szClassPath = getenv("CLASSPATH");
0N/A if( szClassPath == NULL )
0N/A szClassPath = ".";
0N/A
0N/A pOptions[0].optionString = new char[strlen("-Djava.class.path=")+
0N/A strlen(szClassPath)+1];
0N/A sprintf( pOptions[0].optionString, "-Djava.class.path=%s", szClassPath );
0N/A
0N/A //redefine java.lang.System.exit()
0N/A
0N/A pOptions[1].optionString = "exit";
0N/A pOptions[1].extraInfo = system_exit;
0N/A
0N/A //Fill the arguments
0N/A
0N/A memset(pArgs, 0, sizeof(JavaVMInitArgs));
0N/A pArgs->version = 0x00010002;
0N/A pArgs->options = pOptions;
0N/A pArgs->nOptions = nOptSize;
0N/A pArgs->ignoreUnrecognized = JNI_TRUE;
0N/A
0N/A *ppArgs = pArgs;
0N/A
0N/A return 0;
0N/A}
0N/A
0N/A/*
0N/AFree the allocated JVM init argumets
0N/A*/
0N/A
0N/Avoid FreeJavaVMInitArgs( void* pArgs ){
0N/A delete ((JavaVMInitArgs*)pArgs)->options[0].optionString;
0N/A delete ((JavaVMInitArgs*)pArgs)->options;
0N/A delete pArgs;
0N/A}
0N/A
0N/A/*
0N/AStatic wrapper on FindClass() JNI function.
0N/ASee the description in
0N/Ahttp://jre.sfbay/java/re/jdk/6/promoted/latest/docs/technotes/guides/jni/spec/functions.html#wp16027
0N/A*/
0N/A
0N/Aint FindClass( JNIEnv* pEnv,
0N/A const char* szClass,
0N/A jclass* pClass ){
0N/A
0N/A *pClass = pEnv->FindClass( szClass );
0N/A
0N/A if(pEnv->ExceptionCheck() == JNI_TRUE){
0N/A pEnv->ExceptionDescribe();
0N/A return -1;
0N/A }
0N/A if(*pClass != NULL)
0N/A return 0;
0N/A else
0N/A return -2;
0N/A
0N/A}
0N/A
0N/A/*
0N/AStatic wrapper on GetStaticMethodID() JNI function.
0N/ASee the description in
0N/Ahttp://jre.sfbay/java/re/jdk/6/promoted/latest/docs/technotes/guides/jni/spec/functions.html#wp20949
0N/A*/
0N/A
0N/Aint GetStaticMethodID(JNIEnv* pEnv,
0N/A jclass pClass,
0N/A const char* szName,
0N/A const char* szArgs,
0N/A jmethodID* pMid){
0N/A
0N/A *pMid = pEnv->GetStaticMethodID( pClass, szName, szArgs);
0N/A
0N/A if(pEnv->ExceptionCheck() == JNI_TRUE){
0N/A pEnv->ExceptionDescribe();
0N/A return -1;
0N/A }
0N/A
0N/A if( *pMid != NULL )
0N/A return 0;
0N/A else
0N/A return -2;
0N/A}
0N/A
0N/A/*
0N/AStatic wrapper on NewObjectArray() JNI function.
0N/ASee the description in
0N/Ahttp://jre.sfbay/java/re/jdk/6/promoted/latest/docs/technotes/guides/jni/spec/functions.html#wp21619
0N/A*/
0N/A
0N/Aint NewObjectArray( JNIEnv* pEnv,
0N/A int nDimension,
0N/A const char* szType,
0N/A jobjectArray* pArray ){
0N/A
0N/A *pArray = pEnv->NewObjectArray( nDimension, pEnv->FindClass( szType ), NULL);
0N/A
0N/A if(pEnv->ExceptionCheck() == JNI_TRUE){
0N/A pEnv->ExceptionDescribe();
0N/A return -1;
0N/A }
0N/A
0N/A if( pArray != NULL )
0N/A return 0;
0N/A else
0N/A return -2;
0N/A
0N/A}
0N/A
0N/A/*
0N/AStatic wrapper on CallStaticVoidMethod() JNI function.
0N/ASee the description in
0N/Ahttp://jre.sfbay/java/re/jdk/6/promoted/latest/docs/technotes/guides/jni/spec/functions.html#wp4796
0N/A*/
0N/A
0N/Aint CallStaticVoidMethod( JNIEnv* pEnv,
0N/A jclass pClass,
0N/A jmethodID pMid,
0N/A void* pArgs){
0N/A
0N/A g_nExitCode = 0;
0N/A pEnv->CallStaticVoidMethod( pClass, pMid, pArgs);
0N/A if( pEnv->ExceptionCheck() == JNI_TRUE ){
0N/A pEnv->ExceptionDescribe();
0N/A return -1;
0N/A }else
0N/A return g_nExitCode;
0N/A}
0N/A
0N/A/*
0N/AStatic wrapper on DestroyJavaVM() JNI function.
0N/ASee the description in
0N/Ahttp://jre.sfbay/java/re/jdk/6/promoted/latest/docs/technotes/guides/jni/spec/invocation.html#destroy_java_vm
0N/A*/
0N/A
0N/Aint DestroyJavaVM( JavaVM* pJVM ){
0N/A pJVM->DestroyJavaVM();
0N/A return 0;
0N/A}