188 lines
7.1 KiB
C++
188 lines
7.1 KiB
C++
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/*************************************************************************
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*
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* $RCSfile: Reader.cxx,v $
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*
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* $Revision: 1.1.1.1 $
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*
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* last change: $Author: hr $ $Date: 2000-09-18 16:14:22 $
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*
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* The Contents of this file are made available subject to the terms of
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* either of the following licenses
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*
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* - GNU Lesser General Public License Version 2.1
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* - Sun Industry Standards Source License Version 1.1
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*
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* Sun Microsystems Inc., October, 2000
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*
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* GNU Lesser General Public License Version 2.1
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* =============================================
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* Copyright 2000 by Sun Microsystems, Inc.
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* 901 San Antonio Road, Palo Alto, CA 94303, USA
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License version 2.1, as published by the Free Software Foundation.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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*
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* Sun Industry Standards Source License Version 1.1
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* =================================================
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* The contents of this file are subject to the Sun Industry Standards
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* Source License Version 1.1 (the "License"); You may not use this file
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* except in compliance with the License. You may obtain a copy of the
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* License at http://www.openoffice.org/license.html.
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*
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* Software provided under this License is provided on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
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* WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
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* MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
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* See the License for the specific provisions governing your rights and
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* obligations concerning the Software.
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*
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* The Initial Developer of the Original Code is: Sun Microsystems, Inc.
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*
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* Copyright: 2000 by Sun Microsystems, Inc.
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*
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* All Rights Reserved.
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*
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* Contributor(s): _______________________________________
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*
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*
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************************************************************************/
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#ifndef _CONNECTIVITY_JAVA_IO_READER_HXX_
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#include "java/io/Reader.hxx"
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#endif
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#ifndef _INC_MEMORY
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#include <memory.h>
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#endif
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using namespace connectivity;
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//**************************************************************
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//************ Class: java.io.Reader
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//**************************************************************
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jclass java_io_Reader::theClass = 0;
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java_io_Reader::~java_io_Reader()
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{}
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jclass java_io_Reader::getMyClass()
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{
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// die Klasse muss nur einmal geholt werden, daher statisch
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if( !theClass ){
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SDBThreadAttach t;
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if( !t.pEnv ) return (jclass)NULL;
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jclass tempClass = t.pEnv->FindClass( "java/io/Reader" );
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jclass globClass = (jclass)t.pEnv->NewGlobalRef( tempClass );
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t.pEnv->DeleteLocalRef( tempClass );
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saveClassRef( globClass );
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}
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return theClass;
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}
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void java_io_Reader::saveClassRef( jclass pClass )
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{
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if( SDBThreadAttach::IsJavaErrorOccured() || pClass==NULL )
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return;
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// der uebergebe Klassen-Handle ist schon global, daher einfach speichern
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theClass = pClass;
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}
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sal_Int32 SAL_CALL java_io_Reader::readSomeBytes( ::com::sun::star::uno::Sequence< sal_Int8 >& aData, sal_Int32 nMaxBytesToRead ) throw(::com::sun::star::io::NotConnectedException, ::com::sun::star::io::BufferSizeExceededException, ::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException)
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{
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return readBytes(aData,nMaxBytesToRead);
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}
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void SAL_CALL java_io_Reader::skipBytes( sal_Int32 nBytesToSkip ) throw(::com::sun::star::io::NotConnectedException, ::com::sun::star::io::BufferSizeExceededException, ::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException)
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{
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jint out(0);
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SDBThreadAttach t; OSL_ENSHURE(t.pEnv,"Java Enviroment gel<65>scht worden!");
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if( t.pEnv )
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{
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char * cSignature = "(I)I";
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char * cMethodName = "skip";
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// Java-Call absetzen
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jmethodID mID = t.pEnv->GetMethodID( getMyClass(), cMethodName, cSignature );
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if( mID )
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{
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out = t.pEnv->CallIntMethod( object, mID,nBytesToSkip);
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ThrowSQLException(t.pEnv,*this);
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}
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} //t.pEnv
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}
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sal_Int32 SAL_CALL java_io_Reader::available( ) throw(::com::sun::star::io::NotConnectedException, ::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException)
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{
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jboolean out(sal_False);
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SDBThreadAttach t; OSL_ENSHURE(t.pEnv,"Java Enviroment gel<65>scht worden!");
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if( t.pEnv )
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{
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char * cSignature = "()Z";
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char * cMethodName = "available";
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// Java-Call absetzen
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jmethodID mID = t.pEnv->GetMethodID( getMyClass(), cMethodName, cSignature );
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if( mID )
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{
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out = t.pEnv->CallBooleanMethod( object, mID);
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ThrowSQLException(t.pEnv,*this);
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}
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} //t.pEnv
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return out;
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}
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void SAL_CALL java_io_Reader::closeInput( ) throw(::com::sun::star::io::NotConnectedException, ::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException)
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{
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SDBThreadAttach t; OSL_ENSHURE(t.pEnv,"Java Enviroment gel<65>scht worden!");
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if( t.pEnv )
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{
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char * cSignature = "()V";
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char * cMethodName = "close";
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// Java-Call absetzen
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jmethodID mID = t.pEnv->GetMethodID( getMyClass(), cMethodName, cSignature );
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if( mID )
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{
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t.pEnv->CallVoidMethod( object, mID);
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ThrowSQLException(t.pEnv,*this);
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}
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} //t.pEnv
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}
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// -----------------------------------------------------
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sal_Int32 SAL_CALL java_io_Reader::readBytes( ::com::sun::star::uno::Sequence< sal_Int8 >& aData, sal_Int32 nBytesToRead ) throw(::com::sun::star::io::NotConnectedException, ::com::sun::star::io::BufferSizeExceededException, ::com::sun::star::io::IOException, ::com::sun::star::uno::RuntimeException)
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{
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OSL_ENSHURE(aData.getLength() < nBytesToRead," Sequence is smaller than BytesToRead");
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jint out(0);
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SDBThreadAttach t; OSL_ENSHURE(t.pEnv,"Java Enviroment gel<65>scht worden!");
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if( t.pEnv )
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{
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jcharArray pCharArray = t.pEnv->NewCharArray(nBytesToRead);
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char * cSignature = "([CII)I";
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char * cMethodName = "read";
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// Java-Call absetzen
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jmethodID mID = t.pEnv->GetMethodID( getMyClass(), cMethodName, cSignature );
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if( mID )
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{
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while(!(out = t.pEnv->CallIntMethod( object, mID,pCharArray,0,nBytesToRead)))
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ThrowSQLException(t.pEnv,*this);
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if(out > 0)
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{
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jboolean p = sal_False;
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if(aData.getLength() < out)
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aData.realloc(out-aData.getLength());
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memcpy(aData.getArray(),t.pEnv->GetCharArrayElements(pCharArray,&p),out);
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}
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}
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t.pEnv->DeleteLocalRef((jcharArray)pCharArray);
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} //t.pEnv
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return out;
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}
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