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/*-------------------< >---------------------------
Currently missing markup for EXTENTS and DIMSCALES
If an attribute is a text string, then it will print the attribute
with a tag of <DATA>. Otherwise, it will just provide information
about the attribute (the range, length, type, name... etc).
Does not provide refs for data right now, but I don't think they
are necessary (the query will need to be based on index anyways).
DTD for HDF XML Markup
----------------------
<!ELEMENT HDF4 (FILENAME?,SDS*,ANNOTATION*,ATTRIBUTE*,ERROR?)>
<!ELEMENT ERROR (#PCDATA)>
<!ELEMENT FILENAME (#PCDATA)>
<!ELEMENT SDS (DIMS,TYPE,UNITS?,NAME?,RANGE?,EXTENTS?,ANNOTATION*,ATTRIBUTE*)>
<!ELEMENT NAME (#PCDATA)>
<!ELEMENT DIMS (#PCDATA)>
<!ATTRIBUTE RANK CDATA "3">
<!ELEMENT TYPE (#PCDATA)>
<!ELEMENT ANNOTATION (#PCDATA)>
<!ELEMENT EXTENTS (#PCDATA)>
<!ELEMENT RANGE (#PCDATA)>
<!ELEMENT ATTRIBUTE (LENGTH,TYPE,NAME,RANGE?,EXTENTS?)>
----------------------------------------------------*/
#include <stdio.h>
#include <stdlib.h>
#ifdef WITH_HDF4
#include <HDFIO.hh>
#endif
#ifdef WITH_HDF5
#include <H5IO.hh>
#endif
#include <IEEEIO.hh>
char filedrivername[128];
#define FindMinMax(dt) { \
dt *data = (dt*)buffer; \
min = max = (double)(data[0]); \
for(int i=1;i<nelem;i++){ \
double v = (double)(data[i]); \
if(v<min) min=v; \
if(v>max) max=v; \
} \
}
// Print an XML tag for the name of the data element
// tabover<NAME>name</NAME>
void PrintNameXML(char *tab,// leading whitespace (for formating)
char *name);
// Print an XML tag for the dimensions of an array
// tabover <DIMS RANK=rank>dim1,dim2..dimN</DIMS>
void PrintDimsXML(char *tab,// leading whitespace (for formating)
int rank,
int *dims);
// Print an XML tag for the length of an array
// tabover <LENGTH>length</LENGTH>
void PrintLengthXML(char *tab,// leading whitespace (for formating)
int length);
// Print an XML tag for the data type of an array
// Must be one of Float32,Float64,Int16,Int32,Int64,Byte,Char
// Byte indicates data whereas Char indicates text (a string)
// even though both ar 8 bits
// tabover <TYPE>datatype</TYPE>
void PrintTypeXML(char *tab, // OK, you get the picture...
IObase::DataType datatype);
// Compute the min and max for a data array.
void GetRangeXML(IObase::DataType datatype,
int nelem,
char *buffer,
double &min,
double &max);
// Print an XML tag for the Range of the data (the min/max)
// Uses GetRangeXML.
// tabover <RANGE>min,max</RANGE>
// Problem is that this forces a load of the dataset into memory
// which can be slow and memory intensive. Need to change this
// so that it can load a subset of the data into RAM (load in
// 8k blocks rather than the entire thing).
void PrintRangeXML(char *tab,
IObase::DataType datatype,
int nelem,
char *buffer);
int main(int argc,char *argv[]){
sprintf(filedrivername,"ERROR");
if(argc<2){
printf("<ERROR>missing filename</ERROR>\n");
exit(0);
}
IObase *file = 0;
IEEEIO *ifile = new IEEEIO(argv[1],IObase::Read);
if(!ifile->isValid()){ delete ifile; ifile=0;}
else {
sprintf(filedrivername,"IEEEIO");
file = ifile; // success
}
#ifdef WITH_HDF4
HDFIO *hfile=0;
if(!file){
hfile = new HDFIO(argv[1],IObase::Read);
if(!hfile->isValid()) {delete hfile; hfile=0;}
else {
sprintf(filedrivername,"HDF4");
file = hfile; // success
}
}
#else
IObase *hfile=0;
#endif
#ifdef WITH_HDF5
H5IO *h5file=0;
if(!file){
h5file = new H5IO(argv[1],IObase::Read);
if(!h5file->isValid()) {delete h5file; h5file=0;}
else {
sprintf(filedrivername,"HDF5");
file = h5file; // success
}
}
#endif
if(!file){
printf("<ERROR>could not open file %s</ERROR>\n",argv[1]);
exit(0);
}
printf("<%s>\n",filedrivername);
// now say anything you want about the HDF file
for(int n=0,ndatasets=file->nDatasets();n<ndatasets;n++){ // for each dataset
int rank,dims[5];
char name[128];
IObase::DataType datatype;
puts("\t<SDS>");// begin an sds
if(hfile){
#ifdef WITH_HDF4
hfile->readInfo(name,datatype,rank,dims);
#endif
}
else{
name[0]='\0';
file->readInfo(datatype,rank,dims);
}
if(strlen(name)>0)
PrintNameXML("\t\t",name);
PrintTypeXML("\t\t",datatype);
PrintDimsXML("\t\t",rank,dims);
if(datatype!=IObase::Char){
char *buffer = new char[IObase::nBytes(datatype,rank,dims)];
file->read(buffer); // read the data
PrintRangeXML("\t\t",datatype,IObase::nElements(rank,dims),buffer);
delete buffer;
}
// for now, skip the annotations
for(int an=0,nannotations=file->nAnnotations();an<nannotations;an++){
int length;
file->readAnnotationInfo(an,length);
printf("\t\t <ANNOTATION>%u</ANNOTATION>\n",length);
}
// cycle through each of the attributes
for(int a=0,nattribs=file->nAttributes();a<nattribs;a++){
int length;
printf("\t\t<ATTRIBUTE>\n");
file->readAttributeInfo(a,name,datatype,length);
PrintNameXML("\t\t ",name);
PrintTypeXML("\t\t ",datatype);
PrintLengthXML("\t\t ",length);
if(datatype==IObase::Char){ // its a string, so print it
char *s = new char[length+1];
file->readAttribute(a,s);
printf("\t\t <DATA>%s</DATA>\n",s);
delete s;
}
else {
char *buffer = new char[IObase::nBytes(datatype,1,&length)];
file->readAttribute(a,buffer); // read the data
PrintRangeXML("\t\t",datatype,length,buffer);
delete buffer;
}
printf("\t\t</ATTRIBUTE>\n");
}
puts("\t</SDS>");
}
printf("</%s>\n",filedrivername);
delete file;
return 0;
}
void PrintNameXML(char *tab,char *name){
printf("%s<NAME>%s</NAME>\n",tab,name);
}
void PrintDimsXML(char *tab,int rank,int *dims){
printf("%s<DIMS RANK=\"%u\">",tab,rank);
printf("%u",dims[0]); for(int i=1;i<rank;i++) printf(",%u",dims[i]);
puts("</DIMS>");
}
void PrintLengthXML(char *tab,int length){
printf("%s<LENGTH>%u</LENGTH>\n",tab,length);
}
void PrintTypeXML(char *tab,IObase::DataType datatype){
printf("%s<TYPE>",tab);
switch(datatype){
case IObase::Float32:
printf("Float32");
break;
case IObase::Float64:
printf("Float64");
break;
case IObase::Int16:
printf("Int16");
break;
case IObase::Int32:
printf("Int32");
break;
case IObase::Int64:
printf("Int64");
break;
case IObase::Byte:
printf("Byte");
break;
case IObase::Char:
printf("Char");
break;
default:
printf("Unknown(%d)",(int)datatype);
}
puts("</TYPE>");
}
void GetRangeXML(IObase::DataType datatype,int nelem,char *buffer,
double &min,double &max){
switch(datatype){
case IObase::Float32:
FindMinMax(float);
break;
case IObase::Float64:
FindMinMax(double);
break;
case IObase::Int16:
FindMinMax(short);
break;
case IObase::Int32:
FindMinMax(int);
break;
case IObase::Int64:
FindMinMax(long); // well. long long for 32bit compiles
break;
case IObase::Byte:
case IObase::Char:
FindMinMax(char);
break;
default:
//printf("Unknown(%d)",(int)datatype);
return; // don't print
}
}
void PrintRangeXML(char *tab,IObase::DataType datatype,int nelem,char *buffer){
// now compute the range in a datatype-dependent manner
double min,max;
GetRangeXML(datatype,nelem,buffer,min,max);
printf("%s<RANGE>%g,%g</RANGE>\n",tab,min,max);
}
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