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// javajs.h
/**
* Copyright (C) 2008 10gen Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/* this file contains code to call into java (into the 10gen sandbox) from inside the database */
#pragma once
#include "../stdafx.h"
#define J_USE_OBJ
#include <jni.h>
#include <boost/thread/tss.hpp>
#include <errno.h>
#include <sys/types.h>
#if !defined(_WIN32)
#include <dirent.h>
#endif
#include "jsobj.h"
void jasserted(const char *msg, const char *file, unsigned line);
#define jassert(_Expression) if ( ! ( _Expression ) ){ jasserted(#_Expression, __FILE__, __LINE__); }
int javajstest();
const char * findEd();
const char * findEd(const char *);
class JSObj;
class JavaJSImpl {
public:
JavaJSImpl();
JavaJSImpl(const char *);
~JavaJSImpl();
jlong scopeCreate();
int scopeInit( jlong id , JSObj * obj );
jboolean scopeReset( jlong id );
void scopeFree( jlong id );
double scopeGetNumber( jlong id , const char * field );
string scopeGetString( jlong id , const char * field );
jboolean scopeGetBoolean( jlong id , const char * field );
JSObj scopeGetObject( jlong id , const char * field );
char scopeGetType( jlong id , const char * field );
int scopeSetNumber( jlong id , const char * field , double val );
int scopeSetString( jlong id , const char * field , const char * val );
int scopeSetObject( jlong id , const char * field , JSObj * obj );
int scopeSetBoolean( jlong id , const char * field , jboolean val );
jlong functionCreate( const char * code );
/* return values:
public static final int NO_SCOPE = -1;
public static final int NO_FUNCTION = -2;
public static final int INVOKE_ERROR = -3;
public static final int INVOKE_SUCCESS = 0;
*/
int invoke( jlong scope , jlong function );
void printException();
void run( const char * js );
void detach( JNIEnv * env ){
_jvm->DetachCurrentThread();
}
private:
jobject create( const char * name ){
jclass c = findClass( name );
if ( ! c )
return 0;
jmethodID cons = _getEnv()->GetMethodID( c , "<init>" , "()V" );
if ( ! cons )
return 0;
return _getEnv()->NewObject( c , cons );
}
jclass findClass( const char * name ){
return _getEnv()->FindClass( name );
}
private:
JNIEnv * _getEnv();
JavaVM * _jvm;
JNIEnv * _mainEnv;
JavaVMInitArgs * _vmArgs;
boost::thread_specific_ptr<JNIEnv> * _envs;
jclass _dbhook;
jclass _dbjni;
jmethodID _scopeCreate;
jmethodID _scopeInit;
jmethodID _scopeReset;
jmethodID _scopeFree;
jmethodID _scopeGetNumber;
jmethodID _scopeGetString;
jmethodID _scopeGetObject;
jmethodID _scopeGetBoolean;
jmethodID _scopeGuessObjectSize;
jmethodID _scopeGetType;
jmethodID _scopeSetNumber;
jmethodID _scopeSetString;
jmethodID _scopeSetObject;
jmethodID _scopeSetBoolean;
jmethodID _functionCreate;
jmethodID _invoke;
};
extern JavaJSImpl *JavaJS;
// a javascript "scope"
class Scope {
public:
Scope() { s = JavaJS->scopeCreate(); }
~Scope() { JavaJS->scopeFree(s); s = 0; }
void reset() { JavaJS->scopeReset(s); }
double getNumber(const char *field) { return JavaJS->scopeGetNumber(s,field); }
string getString(const char *field) { return JavaJS->scopeGetString(s,field); }
jboolean getBoolean(const char *field) { return JavaJS->scopeGetBoolean(s,field); }
JSObj getObject(const char *field ) { return JavaJS->scopeGetObject(s,field); }
int type(const char *field ) { return JavaJS->scopeGetType(s,field); }
void setNumber(const char *field, double val ) { JavaJS->scopeSetNumber(s,field,val); }
void setString(const char *field, const char * val ) { JavaJS->scopeSetString(s,field,val); }
void setObject(const char *field, JSObj& obj ) { JavaJS->scopeSetObject(s,field,&obj); }
void setBoolean(const char *field, jboolean val ) { JavaJS->scopeSetBoolean(s,field,val); }
int invoke(jlong function) { return JavaJS->invoke(s,function); }
jlong s;
};
JNIEXPORT void JNICALL java_native_say(JNIEnv *, jclass, jobject outBuffer );
JNIEXPORT jint JNICALL java_native_call(JNIEnv *, jclass, jobject outBuffer , jobject inBuffer );
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