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+/* -*- 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 <config_java.h>
+
+#include <connectivity/CommonTools.hxx>
+#include <connectivity/dbtools.hxx>
+#include <com/sun/star/beans/XPropertySet.hpp>
+#include <com/sun/star/java/JavaVirtualMachine.hpp>
+#if HAVE_FEATURE_JAVA
+#include <jvmaccess/virtualmachine.hxx>
+#endif
+#include <osl/diagnose.h>
+#include <rtl/character.hxx>
+#include <rtl/process.h>
+#include <tools/diagnose_ex.h>
+
+using namespace ::comphelper;
+static sal_Unicode rtl_ascii_toUpperCase( sal_Unicode ch )
+{
+ return ch >= 0x0061 && ch <= 0x007a ? ch + 0x20 : ch;
+}
+
+namespace connectivity
+{
+ using namespace ::com::sun::star::uno;
+ using namespace ::com::sun::star::lang;
+ using namespace ::com::sun::star::beans;
+ using namespace ::com::sun::star::java;
+ using namespace dbtools;
+
+ const sal_Unicode CHAR_PLACE = '_';
+ const sal_Unicode CHAR_WILD = '%';
+
+ bool match(const sal_Unicode* pWild, const sal_Unicode* pStr, const sal_Unicode cEscape)
+ {
+ int pos=0;
+ int flag=0;
+
+ while ( *pWild || flag )
+ {
+ switch (*pWild)
+ {
+ case CHAR_PLACE:
+ if ( *pStr == 0 )
+ return false;
+ break;
+ default:
+ if (*pWild && (*pWild == cEscape) && ((*(pWild+1)== CHAR_PLACE) || (*(pWild+1) == CHAR_WILD)) )
+ pWild++;
+ if ( rtl_ascii_toUpperCase(*pWild) != rtl_ascii_toUpperCase(*pStr) )
+ if ( !pos )
+ return false;
+ else
+ pWild += pos;
+ else
+ break;
+ // WARNING/TODO: in certain circumstances it will run into
+ // the next 'case'!
+ [[fallthrough]];
+ case CHAR_WILD:
+ while ( *pWild == CHAR_WILD )
+ pWild++;
+ if ( *pWild == 0 )
+ return true;
+ flag = 1;
+ pos = 0;
+ if ( *pStr == 0 )
+ return ( *pWild == 0 );
+ while ( *pStr && *pStr != *pWild )
+ {
+ if ( *pWild == CHAR_PLACE ) {
+ pWild++;
+ while ( *pWild == CHAR_WILD )
+ pWild++;
+ }
+ pStr++;
+ if ( *pStr == 0 )
+ return ( *pWild == 0 );
+ }
+ break;
+ }
+ if ( *pWild != 0 )
+ pWild++;
+ if ( *pStr != 0 )
+ pStr++;
+ else
+ flag = 0;
+ if ( flag )
+ pos--;
+ }
+ return ( *pStr == 0 ) && ( *pWild == 0 );
+ }
+
+#if HAVE_FEATURE_JAVA
+ ::rtl::Reference< jvmaccess::VirtualMachine > getJavaVM(const Reference<XComponentContext >& _rxContext)
+ {
+ ::rtl::Reference< jvmaccess::VirtualMachine > aRet;
+ OSL_ENSURE(_rxContext.is(),"No XMultiServiceFactory a.v.!");
+ if(!_rxContext.is())
+ return aRet;
+
+ try
+ {
+ Reference< XJavaVM > xVM = JavaVirtualMachine::create(_rxContext);
+
+ Sequence<sal_Int8> processID(17); // 16 + 1
+ auto pprocessID = processID.getArray();
+ rtl_getGlobalProcessId( reinterpret_cast<sal_uInt8*>(pprocessID) );
+ pprocessID[16] = 0; // RETURN_VIRTUALMACHINE
+
+ Any uaJVM = xVM->getJavaVM( processID );
+ sal_Int64 nTemp;
+ if (!(uaJVM >>= nTemp)) {
+ throw Exception("cannot get result for getJavaVM", nullptr); // -5
+ }
+ aRet = reinterpret_cast<jvmaccess::VirtualMachine *>(
+ static_cast<sal_IntPtr>(nTemp));
+ }
+ catch (Exception&)
+ {
+ TOOLS_WARN_EXCEPTION("connectivity.commontools", "getJavaVM failed:");
+ }
+
+ return aRet;
+ }
+
+ bool existsJavaClassByName( const ::rtl::Reference< jvmaccess::VirtualMachine >& _pJVM,std::u16string_view _sClassName )
+ {
+ bool bRet = false;
+ if ( _pJVM.is() )
+ {
+ jvmaccess::VirtualMachine::AttachGuard aGuard(_pJVM);
+ JNIEnv* pEnv = aGuard.getEnvironment();
+ if( pEnv )
+ {
+ OString sClassName = OUStringToOString(_sClassName, RTL_TEXTENCODING_ASCII_US);
+ sClassName = sClassName.replace('.','/');
+ jobject out = pEnv->FindClass(sClassName.getStr());
+ bRet = out != nullptr;
+ pEnv->DeleteLocalRef( out );
+ }
+ }
+ return bRet;
+ }
+#endif
+}
+
+namespace dbtools
+{
+
+static bool isCharOk(sal_Unicode c, std::u16string_view _rSpecials)
+{
+
+ return ( ((c >= 97) && (c <= 122)) || ((c >= 65) && (c <= 90)) || ((c >= 48) && (c <= 57)) ||
+ c == '_' || _rSpecials.find(c) != std::u16string_view::npos);
+}
+
+
+bool isValidSQLName(const OUString& rName, std::u16string_view _rSpecials)
+{
+ // Test for correct naming (in SQL sense)
+ // This is important for table names for example
+ const sal_Unicode* pStr = rName.getStr();
+ if (*pStr > 127 || rtl::isAsciiDigit(*pStr))
+ return false;
+
+ for (; *pStr; ++pStr )
+ if(!isCharOk(*pStr,_rSpecials))
+ return false;
+
+ if ( !rName.isEmpty()
+ && ( (rName.toChar() == '_')
+ || ( (rName.toChar() >= '0')
+ && (rName.toChar() <= '9')
+ )
+ )
+ )
+ return false;
+ // the SQL-Standard requires the first character to be an alphabetic character, which
+ // isn't easy to decide in UniCode...
+ // So we just prohibit the characters which already lead to problems...
+ // 11.04.00 - 74902 - FS
+
+ return true;
+}
+
+// Creates a new name if necessary
+OUString convertName2SQLName(const OUString& rName, std::u16string_view _rSpecials)
+{
+ if(isValidSQLName(rName,_rSpecials))
+ return rName;
+
+ const sal_Unicode* pStr = rName.getStr();
+ // if not valid
+ if (*pStr >= 128 || rtl::isAsciiDigit(*pStr))
+ return OUString();
+
+ OUStringBuffer aNewName(rName);
+ sal_Int32 nLength = rName.getLength();
+ for (sal_Int32 i=0; i < nLength; ++i)
+ if(!isCharOk(aNewName[i],_rSpecials))
+ aNewName[i] = '_';
+
+ return aNewName.makeStringAndClear();
+}
+
+OUString quoteName(const OUString& _rQuote, const OUString& _rName)
+{
+ OUString sName = _rName;
+ if( !_rQuote.isEmpty() && _rQuote.toChar() != ' ')
+ sName = _rQuote + _rName + _rQuote;
+ return sName;
+}
+
+
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */