jdatainputstream.cpp
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/***************************************************************************
* Copyright (C) 2005 by Jeff Ferr *
* root@sat *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* 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 General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#include "Stdafx.h"
#include "jdatainputstream.h"
#include "jioexception.h"
namespace jio {
DataInputStream::DataInputStream(InputStream *is):
Object()
{
jcommon::Object::SetClassName("jio::DataInputStream");
if ((void *)is == NULL) {
throw IOException("Null pointer exception");
}
stream = is;
}
DataInputStream::~DataInputStream()
{
}
bool DataInputStream::IsEmpty()
{
return Available() == 0;
}
int64_t DataInputStream::Available()
{
return stream->Available();
}
int64_t DataInputStream::GetSize()
{
if (stream != NULL) {
stream->GetSize();
}
return 0LL;
}
int64_t DataInputStream::GetPosition()
{
if (stream != NULL) {
stream->GetPosition();
}
return 0LL;
}
int DataInputStream::Read(uint8_t *data)
{
if (stream != NULL) {
stream->Read((char *)data, sizeof(uint8_t));
}
return -1;
}
int DataInputStream::Read(uint16_t *data)
{
if (stream != NULL) {
stream->Read((char *)data, sizeof(uint16_t));
}
return -1;
}
int DataInputStream::Read(uint32_t *data)
{
if (stream != NULL) {
stream->Read((char *)data, sizeof(uint32_t));
}
return -1;
}
int DataInputStream::Read(uint64_t *data)
{
if (stream != NULL) {
stream->Read((char *)data, sizeof(uint64_t));
}
return -1;
}
void DataInputStream::Skip(int64_t skip)
{
if (stream != NULL) {
stream->Skip(skip);
}
}
void DataInputStream::Reset()
{
if (stream != NULL) {
stream->Reset();
}
}
void DataInputStream::Close()
{
if (stream != NULL) {
stream->Close();
}
}
int64_t DataInputStream::GetReadedBytes()
{
if (stream != NULL) {
return stream->GetReadedBytes();
}
return 0LL;
}
}