/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (the "License"); you may not use this file
 *   except in compliance with the License. You may obtain a copy of
 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
 */


#include <string.h>
#include <java/tools.hxx>
#include <java/util/Property.hxx>
#include <com/sun/star/sdbc/SQLException.hpp>
#include <com/sun/star/container/XNameAccess.hpp>
#include <connectivity/dbexception.hxx>
#include <osl/diagnose.h>

using namespace connectivity;
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::beans;
using namespace ::com::sun::star::sdbc;
using namespace ::com::sun::star::container;

void java_util_Properties::setProperty(const OUString& key, const OUString& value)
{
    SDBThreadAttach t; OSL_ENSURE(t.pEnv,"Java environment has been deleted!");

    {
        jvalue args[2];
        // Convert Parameter
        args[0].l = convertwchar_tToJavaString(t.pEnv,key);
        args[1].l = convertwchar_tToJavaString(t.pEnv,value);
        // Initialize temporary Variables
        static const char * const cSignature = "(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/Object;";
        static const char * const cMethodName = "setProperty";
        // Turn off Java-Call
        static jmethodID mID(nullptr);
        obtainMethodId_throwSQL(t.pEnv, cMethodName,cSignature, mID);
        jobject out = t.pEnv->CallObjectMethod(object, mID, args[0].l,args[1].l);
        ThrowSQLException(t.pEnv,nullptr);
        t.pEnv->DeleteLocalRef(static_cast<jstring>(args[1].l));
        t.pEnv->DeleteLocalRef(static_cast<jstring>(args[0].l));
        ThrowSQLException(t.pEnv,nullptr);
        if(out)
            t.pEnv->DeleteLocalRef(out);
    } //t.pEnv
    // WARNING: The caller will be owner of the returned pointers!!!
}
jclass java_util_Properties::theClass = nullptr;

java_util_Properties::~java_util_Properties()
{}

jclass java_util_Properties::getMyClass() const
{
    // the class needs only be called once, that is why it is static
    if( !theClass )
        theClass = findMyClass("java/util/Properties");
    return theClass;
}


java_util_Properties::java_util_Properties( ): java_lang_Object( nullptr, nullptr )
{
    SDBThreadAttach t;
    if( !t.pEnv )
        return;
    // Turn off Java-Call for the constructor
    // Initialize temporary Variables
    static const char * const cSignature = "()V";
    jobject tempObj;
    static jmethodID mID(nullptr);
    obtainMethodId_throwSQL(t.pEnv, "<init>",cSignature, mID);
    tempObj = t.pEnv->NewObject( getMyClass(), mID);
    saveRef( t.pEnv, tempObj );
    t.pEnv->DeleteLocalRef( tempObj );
}


jstring connectivity::convertwchar_tToJavaString(JNIEnv *pEnv,const OUString& _rTemp)
{
    OSL_ENSURE(pEnv,"Environment is NULL!");
    jstring pStr = pEnv->NewString(
        reinterpret_cast<jchar const *>(_rTemp.getStr()), _rTemp.getLength());
    pEnv->ExceptionClear();
    OSL_ENSURE(pStr,"Could not create a jsstring object!");
    return pStr;
}


std::unique_ptr<java_util_Properties> connectivity::createStringPropertyArray(const Sequence< PropertyValue >& info )
{
    std::unique_ptr<java_util_Properties> pProps(new java_util_Properties());
    const PropertyValue* pBegin = info.getConstArray();
    const PropertyValue* pEnd   = pBegin + info.getLength();

    for(;pBegin != pEnd;++pBegin)
    {
        // these are properties used internally by LibreOffice,
        // and should not be passed to the JDBC driver
        // (which probably does not know anything about them anyway).
        if  (   pBegin->Name != "JavaDriverClass"
            &&  pBegin->Name != "JavaDriverClassPath"
            &&  pBegin->Name != "SystemProperties"
            &&  pBegin->Name != "CharSet"
            &&  pBegin->Name != "AppendTableAliasName"
            &&  pBegin->Name != "AppendTableAliasInSelect"
            &&  pBegin->Name != "DisplayVersionColumns"
            &&  pBegin->Name != "GeneratedValues"
            &&  pBegin->Name != "UseIndexDirectionKeyword"
            &&  pBegin->Name != "UseKeywordAsBeforeAlias"
            &&  pBegin->Name != "AddIndexAppendix"
            &&  pBegin->Name != "FormsCheckRequiredFields"
            &&  pBegin->Name != "GenerateASBeforeCorrelationName"
            &&  pBegin->Name != "EscapeDateTime"
            &&  pBegin->Name != "ParameterNameSubstitution"
            &&  pBegin->Name != "IsPasswordRequired"
            &&  pBegin->Name != "IsAutoRetrievingEnabled"
            &&  pBegin->Name != "AutoRetrievingStatement"
            &&  pBegin->Name != "UseCatalogInSelect"
            &&  pBegin->Name != "UseSchemaInSelect"
            &&  pBegin->Name != "AutoIncrementCreation"
            &&  pBegin->Name != "Extension"
            &&  pBegin->Name != "NoNameLengthLimit"
            &&  pBegin->Name != "EnableSQL92Check"
            &&  pBegin->Name != "EnableOuterJoinEscape"
            &&  pBegin->Name != "BooleanComparisonMode"
            &&  pBegin->Name != "IgnoreCurrency"
            &&  pBegin->Name != "TypeInfoSettings"
            &&  pBegin->Name != "IgnoreDriverPrivileges"
            &&  pBegin->Name != "ImplicitCatalogRestriction"
            &&  pBegin->Name != "ImplicitSchemaRestriction"
            &&  pBegin->Name != "SupportsTableCreation"
            &&  pBegin->Name != "UseJava"
            &&  pBegin->Name != "Authentication"
            &&  pBegin->Name != "PreferDosLikeLineEnds"
            &&  pBegin->Name != "PrimaryKeySupport"
            &&  pBegin->Name != "RespectDriverResultSetType"
            )
        {
            OUString aStr;
            OSL_VERIFY( pBegin->Value >>= aStr );
            pProps->setProperty(pBegin->Name,aStr);
        }
    }
    return pProps;
}

OUString connectivity::JavaString2String(JNIEnv *pEnv,jstring Str)
{
    OUString aStr;
    if(Str)
    {
        jboolean bCopy(true);
        const jchar* pChar = pEnv->GetStringChars(Str,&bCopy);
        jsize len = pEnv->GetStringLength(Str);
        aStr = OUString(reinterpret_cast<sal_Unicode const *>(pChar), len);

        if(bCopy)
            pEnv->ReleaseStringChars(Str,pChar);
        pEnv->DeleteLocalRef(Str);
    }
    return aStr;
}

jobject connectivity::convertTypeMapToJavaMap(const Reference< css::container::XNameAccess > & _rMap)
{
    if ( _rMap.is() )
    {
        css::uno::Sequence< OUString > aNames = _rMap->getElementNames();
        if ( aNames.hasElements() )
            ::dbtools::throwFeatureNotImplementedSQLException( u"Type maps"_ustr, nullptr );
    }
    return nullptr;
}

bool connectivity::isExceptionOccurred(JNIEnv *pEnv)
{
    if ( !pEnv )
        return false;

    jthrowable pThrowable = pEnv->ExceptionOccurred();
    bool bRet = pThrowable != nullptr;
    if ( pThrowable )
    {
        pEnv->ExceptionClear();
        pEnv->DeleteLocalRef(pThrowable);
    }

    return bRet;
}

jobject connectivity::createByteInputStream(const css::uno::Reference< css::io::XInputStream >& x,sal_Int32 length)
{
    SDBThreadAttach t;
    if( !t.pEnv || !x.is() )
        return nullptr;
    // Turn off Java-Call for the constructor
    // Initialize temporary variables
    jclass clazz = java_lang_Object::findMyClass("java/io/ByteArrayInputStream");
    static jmethodID mID(nullptr);
    if  ( !mID )
    {
        static const char * const cSignature = "([B)V";
        mID  = t.pEnv->GetMethodID( clazz, "<init>", cSignature );
        OSL_ENSURE( mID, cSignature );
        if  ( !mID )
            throw SQLException();
    } // if  ( !_inout_MethodID )
    jbyteArray pByteArray = t.pEnv->NewByteArray(length);
    Sequence< sal_Int8 > aData;
    x->readBytes(aData,length);
    jboolean p = false;
    memcpy(t.pEnv->GetByteArrayElements(pByteArray,&p),aData.getArray(),aData.getLength());
    jobject out = t.pEnv->NewObject( clazz, mID,pByteArray);
    t.pEnv->DeleteLocalRef(pByteArray);
    return out;
}

jobject connectivity::createCharArrayReader(const css::uno::Reference< css::io::XInputStream >& x,sal_Int32 length)
{
    SDBThreadAttach t;
    if( !t.pEnv || !x.is() )
        return nullptr;
    // Turn off Java-Call for the constructor
    // Initialize temporary Variables
    jclass clazz = java_lang_Object::findMyClass("java/io/CharArrayReader");
    static jmethodID mID(nullptr);
    if  ( !mID )
    {
        static const char * const cSignature = "([C)V";
        mID  = t.pEnv->GetMethodID( clazz, "<init>", cSignature );
        OSL_ENSURE( mID, cSignature );
        if  ( !mID )
            throw SQLException();
    } // if  ( !_inout_MethodID )
    jcharArray pCharArray = t.pEnv->NewCharArray(length);
    Sequence< sal_Int8 > aData;
    x->readBytes(aData,length);
    jboolean p = false;
    memcpy(t.pEnv->GetCharArrayElements(pCharArray,&p),aData.getArray(),aData.getLength());
    jobject out = t.pEnv->NewObject( clazz, mID,pCharArray);
    t.pEnv->DeleteLocalRef(pCharArray);
    return out;
}


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