113 lines
3.4 KiB
C++
113 lines
3.4 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include <sal/config.h>
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#include <sal/log.hxx>
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#include <com/sun/star/io/BufferSizeExceededException.hpp>
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#include <java/io/InputStream.hxx>
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#include <osl/diagnose.h>
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#include <string.h>
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using namespace connectivity;
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#if OSL_DEBUG_LEVEL > 0
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#define THROW_WHERE SAL_WHERE
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#else
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#define THROW_WHERE ""
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#endif
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//************ Class: java.io.InputStream
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jclass java_io_InputStream::theClass = nullptr;
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java_io_InputStream::java_io_InputStream( JNIEnv * pEnv, jobject myObj )
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: java_lang_Object( pEnv, myObj )
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{
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SDBThreadAttach::addRef();
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}
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java_io_InputStream::~java_io_InputStream()
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{
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SDBThreadAttach::releaseRef();
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}
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jclass java_io_InputStream::getMyClass() const
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{
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// the class must be fetched only once, therefore static
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if( !theClass )
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theClass = findMyClass("java/io/InputStream");
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return theClass;
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}
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sal_Int32 SAL_CALL java_io_InputStream::readSomeBytes( css::uno::Sequence< sal_Int8 >& aData, sal_Int32 nMaxBytesToRead )
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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_InputStream::skipBytes( sal_Int32 nBytesToSkip )
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{
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static jmethodID mID(nullptr);
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callIntMethodWithIntArg_ThrowRuntime("skip",mID,nBytesToSkip);
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}
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sal_Int32 SAL_CALL java_io_InputStream::available( )
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{
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static jmethodID mID(nullptr);
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return callIntMethod_ThrowRuntime("available", mID);
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}
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void SAL_CALL java_io_InputStream::closeInput( )
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{
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static jmethodID mID(nullptr);
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callVoidMethod_ThrowRuntime("close",mID);
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}
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sal_Int32 SAL_CALL java_io_InputStream::readBytes( css::uno::Sequence< sal_Int8 >& aData, sal_Int32 nBytesToRead )
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{
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if (nBytesToRead < 0)
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throw css::io::BufferSizeExceededException( THROW_WHERE, *this );
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jint out(0);
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SDBThreadAttach t; OSL_ENSURE(t.pEnv,"Java environment has been deleted!");
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{
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jbyteArray pByteArray = t.pEnv->NewByteArray(nBytesToRead);
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static const char * const cSignature = "([BII)I";
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static const char * const cMethodName = "read";
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// execute Java-Call
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static jmethodID mID(nullptr);
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obtainMethodId_throwRuntime(t.pEnv, cMethodName,cSignature, mID);
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out = t.pEnv->CallIntMethod( object, mID, pByteArray, 0, nBytesToRead );
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if ( !out )
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ThrowRuntimeException(t.pEnv,*this);
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if(out > 0)
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{
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jboolean p = false;
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aData.realloc ( out );
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memcpy(aData.getArray(),t.pEnv->GetByteArrayElements(pByteArray,&p),out);
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}
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t.pEnv->DeleteLocalRef(pByteArray);
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} //t.pEnv
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return out;
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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