bool CTransformer::setPartition(RemoteFilename & remoteInputName, offset_t _startOffset, offset_t _length, bool compressedInput, const char *decryptKey)
{
CTransformerBase::setPartition(remoteInputName, _startOffset, _length);
input.setown(inputFile->open(IFOread));
if (compressedInput) {
Owned<IExpander> expander;
if (decryptKey&&*decryptKey) {
StringBuffer key;
decrypt(key,decryptKey);
expander.setown(createAESExpander256(key.length(),key.str()));
}
input.setown(createCompressedFileReader(input,expander));
}
cursor = startOffset;
return (input != NULL);
}
void copyCompress(const char *from, const char *to, size32_t rowsize, bool fast, bool flzstrm, bool stats)
{
Owned<IFile> srcfile = createIFile(from);
Owned<IFileIO> baseio = srcfile->open(IFOread);
if (!baseio) {
printf("ERROR: could not open '%s' for read\n",from);
doexit(3);
}
Owned<ICompressedFileIO> cmpio = createCompressedFileReader(baseio);
Owned<IFileIOStream> flzstrmsrc = cmpio?NULL:createFastLZStreamRead(baseio);
bool plaincopy = false;
IFileIO *srcio = NULL;
if (cmpio) {
srcio = cmpio;
if (rowsize&&(cmpio->recordSize()==rowsize))
plaincopy = true;
else if (!rowsize) {
if (fast&&(cmpio->method()==COMPRESS_METHOD_FASTLZ))
plaincopy = true;
else if (!fast&&(cmpio->method()==COMPRESS_METHOD_LZW))
plaincopy = true;
}
}
else if (flzstrmsrc) {
if (flzstrm)
plaincopy = true;
}
else
srcio = baseio;
if (plaincopy) {
cmpio.clear();
srcio = baseio.get();
}
Owned<IFile> dstfile = createIFile(to);
StringBuffer fulldst;
if (dstfile->isDirectory()==foundYes) {
dstfile.clear();
addPathSepChar(fulldst.append(to)).append(pathTail(from));
to = fulldst.str();
dstfile.setown(createIFile(to));
}
if (dstfile->exists()) {
printf("ERROR: file '%s' already exists\n",to);
doexit(4);
}
unsigned start;
unsigned startu;
if (stats) {
start = msTick();
startu = usTick();
}
Owned<IFileIO> dstio;
Owned<IFileIOStream> flzstrmdst;
if (plaincopy||flzstrm) {
dstio.setown(dstfile->open(IFOcreate));
if (dstio&&!plaincopy)
flzstrmdst.setown(createFastLZStreamWrite(dstio));
}
else
dstio.setown(createCompressedFileWriter(dstfile,rowsize,false,true,NULL,fast));
if (!dstio) {
printf("ERROR: could not open '%s' for write\n",to);
doexit(5);
}
#ifdef __linux__
// this is not really needed in windows - if it is we will have to
// test the file extension - .exe, .bat
struct stat info;
if (stat(from, &info) == 0) // cannot fail - exception would have been thrown above
dstfile->setCreateFlags(info.st_mode&(S_IRUSR|S_IRGRP|S_IROTH|S_IWUSR|S_IWGRP|S_IWOTH|S_IXUSR|S_IXGRP|S_IXOTH));
#endif
MemoryAttr mb;
void * buffer = mb.allocate(BUFFERSIZE);
offset_t offset = 0;
try
{
loop {
size32_t got = cmpio.get()?cmpio->read(offset, BUFFERSIZE, buffer):srcio->read(offset, BUFFERSIZE, buffer);
if (got == 0)
break;
if (flzstrmdst)
flzstrmdst->write(got,buffer);
else
dstio->write(offset, got, buffer);
offset += got;
}
}
catch (IException *e)
{
// try to delete partial copy
dstio.clear();
try {
dstfile->remove();
}
catch (IException *e2) {
StringBuffer s;
pexception(s.clear().append("Removing partial copy file: ").append(to).str(),e2);
e2->Release();
}
throw e;
}
flzstrmdst.clear();
dstio.clear();
if (stats)
printStats(offset,start,startu);
CDateTime createTime, modifiedTime;
if (srcfile->getTime(&createTime, &modifiedTime, NULL))
dstfile->setTime(&createTime, &modifiedTime, NULL);
printf("copied %s to %s%s\n",from,to,plaincopy?"":" compressing");
{ // print details
dstio.setown(dstfile->open(IFOread));
if (dstio) {
Owned<ICompressedFileIO> cmpio = createCompressedFileReader(dstio);
Owned<IFileIOStream> flzstrm = cmpio?NULL:createFastLZStreamRead(dstio);
if (cmpio||flzstrm)
printCompDetails(to,dstio,cmpio,flzstrm);
else
printf("destination %s not compressed\n",to);
}
else
printf("destination %s could not be read\n",to);
}
}
int copyExpanded(const char *from, const char *to, bool stats)
{
Owned<IFile> srcfile = createIFile(from);
Owned<IFileIO> srcio = srcfile->open(IFOread);
if (!srcio) {
printf("ERROR: could not open '%s' for read\n",from);
doexit(3);
}
Owned<ICompressedFileIO> cmpio = createCompressedFileReader(srcio);
Owned<IFileIOStream> flzstrm = cmpio?NULL:createFastLZStreamRead(srcio);
int ret = 0;
if (cmpio||flzstrm)
printCompDetails(from,srcio,cmpio,flzstrm);
else {
ret = 1;
printf("%s is not compressed, size= %"I64F"d\n",from,srcio->size());
}
if (!to||!*to)
return ret;
Owned<IFile> dstfile = createIFile(to);
StringBuffer fulldst;
if (dstfile->isDirectory()==foundYes) {
dstfile.clear();
addPathSepChar(fulldst.append(to)).append(pathTail(from));
to = fulldst.str();
dstfile.setown(createIFile(to));
}
if (dstfile->exists()) {
printf("ERROR: file '%s' already exists\n",to);
doexit(4);
}
unsigned start;
unsigned startu;
if (stats) {
start = msTick();
startu = usTick();
}
Owned<IFileIO> dstio = dstfile->open(IFOcreate);
if (!dstio) {
printf("ERROR: could not open '%s' for write\n",to);
doexit(5);
}
#ifdef __linux__
// this is not really needed in windows - if it is we will have to
// test the file extension - .exe, .bat
struct stat info;
if (stat(from, &info) == 0) // cannot fail - exception would have been thrown above
dstfile->setCreateFlags(info.st_mode&(S_IRUSR|S_IRGRP|S_IROTH|S_IWUSR|S_IWGRP|S_IWOTH|S_IXUSR|S_IXGRP|S_IXOTH));
#endif
MemoryAttr mb;
void * buffer = mb.allocate(BUFFERSIZE);
offset_t offset = 0;
try
{
loop {
size32_t got = cmpio.get()?cmpio->read(offset,BUFFERSIZE, buffer):
(flzstrm?flzstrm->read(BUFFERSIZE, buffer):
srcio->read(offset, BUFFERSIZE, buffer));
if (got == 0)
break;
dstio->write(offset, got, buffer);
offset += got;
}
}
catch (IException *e)
{
// try to delete partial copy
dstio.clear();
try {
dstfile->remove();
}
catch (IException *e2) {
StringBuffer s;
pexception(s.clear().append("Removing partial copy file: ").append(to).str(),e2);
e2->Release();
}
throw e;
}
dstio.clear();
if (stats)
printStats(offset,start,startu);
CDateTime createTime, modifiedTime;
if (srcfile->getTime(&createTime, &modifiedTime, NULL))
dstfile->setTime(&createTime, &modifiedTime, NULL);
printf("copied %s to %s%s\n",from,to,cmpio.get()?" expanding":"");
return 0;
}
