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/*********************************************************************
* Copyright 1993, UCAR/Unidata
* See netcdf/COPYRIGHT file for copying and redistribution conditions.
* $Header: /upc/share/CVS/netcdf-3/ncgen/genjstd.c,v 1.4 2010/05/17 23:26:45 dmh Exp $
*********************************************************************/
#include "includes.h"
#undef TRACE
/*MNEMONIC*/
#define USEMEMORY 1
extern List* vlenconstants; /* List<Constant*>;*/
/* Forward */
static void genjstd_definevardata(Symbol* vsym);
static void genjstd_primattribute(Symbol*, Bytebuffer*, unsigned long);
static void genjstd_defineattribute(Symbol* asym);
static void genjstd_definevardata(Symbol*);
static void computemaxunlimited(void);
/*
Global Bytebuffer into which to store the C code output;
periodically dumped to file by jflush().
Shared with genjjni.c
*/
Bytebuffer* jcode;
/*
* Generate code for creating netCDF from in-memory structure.
*/
void
gen_ncjava_std(const char *filename)
{
int idim, ivar, iatt, maxdims;
int ndims, nvars, natts, ngatts, ngrps, ntyps;
char* cmode_string;
jcode = bbNew();
bbSetalloc(jcode,C_MAX_STMT);
ndims = listlength(dimdefs);
nvars = listlength(vardefs);
natts = listlength(attdefs);
ngatts = listlength(gattdefs);
ngrps = listlength(grpdefs);
ntyps = listlength(typdefs);
/* Construct the main class */
jline("import java.util.*;");
jline("import ucar.ma2.*;");
jline("import ucar.nc2.*;");
jline("import ucar.nc2.NetcdfFile.*;");
jline("");
jpartial("public class ");
jline(mainname);
jline("{");
/* Now construct the main procedure*/
jline("");
jline("static public void main(String[] argv) throws Exception");
jline("{");
/* create necessary declarations */
if (ndims > 0) {
jline("");
jlined(1,"/* dimension lengths */");
for(idim = 0; idim < ndims; idim++) {
Symbol* dsym = (Symbol*)listget(dimdefs,idim);
if (dsym->dim.size == NC_UNLIMITED) {
nprintf(stmt,sizeof(stmt),"%sfinal int %s_len = 0;",
indented(1),jname(dsym));
} else {
nprintf(stmt,sizeof(stmt),"%sfinal int %s_len = %lu;",
indented(1),
jname(dsym),
(unsigned long) dsym->dim.size);
}
jline(stmt);
}
}
jflush();
maxdims = 0; /* most dimensions of any variable */
for(ivar = 0; ivar < nvars; ivar++) {
Symbol* vsym = (Symbol*)listget(vardefs,ivar);
if(vsym->typ.dimset.ndims > maxdims)
maxdims = vsym->typ.dimset.ndims;
}
jline("");
#ifdef DOTHROW
jlined(1,"try {");
#endif
/* create netCDF file, uses NC_CLOBBER mode */
jline("");
jlined(1,"/* enter define mode */");
if (!cmode_modifier) {
cmode_string = "NC_CLOBBER";
} else if (cmode_modifier & NC_64BIT_OFFSET) {
cmode_string = "NC_CLOBBER|NC_64BIT_OFFSET";
} else {
derror("unknown cmode modifier");
cmode_string = "NC_CLOBBER";
}
nprintf(stmt,sizeof(stmt),
"NetcdfFileWriteable ncfile = NetcdfFileWriteable.createNew(\"%s\", %s);",
filename,(nofill_flag?"false":"true"));
jlined(1,stmt);
jflush();
/* define dimensions from info in dims array */
if (ndims > 0) {
jline("");
jlined(1,"/* define dimensions */");
for(idim = 0; idim < ndims; idim++) {
Symbol* dsym = (Symbol*)listget(dimdefs,idim);
if(dsym->dim.size == NC_UNLIMITED) {
nprintf(stmt,sizeof(stmt),"Dimension %s_dim = ncfile.addUnlimitedDimension(\"%s\");",
jname(dsym),jescapifyname(dsym->name));
} else {
nprintf(stmt,sizeof(stmt),"Dimension %s_dim = ncfile.addDimension(\"%s\", %s_len);",
jname(dsym),jescapifyname(dsym->name), jname(dsym));
}
jlined(1,stmt);
}
jflush();
}
/* define variables from info in vars array */
if (nvars > 0) {
jline("");
jlined(1,"/* define variables */");
for(ivar = 0; ivar < nvars; ivar++) {
Symbol* vsym = (Symbol*)listget(vardefs,ivar);
Symbol* basetype = vsym->typ.basetype;
Dimset* dimset = &vsym->typ.dimset;
jline("");
nprintf(stmt,sizeof(stmt),"ArrayList %s_dimlist = new ArrayList();",
jname(vsym));
jlined(1,stmt);
if(dimset->ndims > 0) {
for(idim = 0; idim < dimset->ndims; idim++) {
Symbol* dsym = dimset->dimsyms[idim];
nprintf(stmt,sizeof(stmt),"%s_dimlist.add(%s_dim);",
jname(vsym),jname(dsym));
jlined(1,stmt);
}
}
nprintf(stmt,sizeof(stmt),
"ncfile.addVariable(\"%s\", DataType.%s, %s_dimlist);",
jescapifyname(vsym->name),
jtypeallcaps(basetype->typ.typecode),
jname(vsym));
jlined(1,stmt);
}
jflush();
}
/* Define the global attributes*/
if(ngatts > 0) {
jline("");
jlined(1,"/* assign global attributes */");
for(iatt = 0; iatt < ngatts; iatt++) {
Symbol* gasym = (Symbol*)listget(gattdefs,iatt);
genjstd_defineattribute(gasym);
}
jline("");
jflush();
}
/* Define the variable specific attributes*/
if(natts > 0) {
jline("");
jlined(1,"/* assign per-variable attributes */");
for(iatt = 0; iatt < natts; iatt++) {
Symbol* asym = (Symbol*)listget(attdefs,iatt);
genjstd_defineattribute(asym);
}
jline("");
jflush();
}
jlined(1,"ncfile.create();"); /* equiv to nc_enddef */
/* Load values into those variables with defined data */
if(nvars > 0) {
jline("");
jlined(1,"/* assign variable data */");
for(ivar = 0; ivar < nvars; ivar++) {
Symbol* vsym = (Symbol*)listget(vardefs,ivar);
if(vsym->data != NULL) genjstd_definevardata(vsym);
}
jline("");
/* compute the max actual size of the unlimited dimension*/
if(usingclassic) computemaxunlimited();
}
jflush();
}
void
cl_java_std(void)
{
jlined(1,"ncfile.close();");
jline("");
#ifdef DOTHROW
jlined(1,"} catch(Exception e) {e.printStackTrace();};");
#endif
jline("}"); /* main */
jline("}"); /* class Main */
jflush();
}
/*
* Return java type name for netCDF type, given type code.
*/
static void
genjstd_defineattribute(Symbol* asym)
{
unsigned long len;
Datalist* list;
Bytebuffer* code = NULL; /* capture other decls*/
list = asym->data;
if(list == NULL) len = 0;
else len = asym->att.count;
nprintf(stmt,sizeof(stmt),"/* attribute: %s */",asym->name);
jlined(1,stmt);
code = bbNew();
genjstd_attrdata(asym,code);
/* Handle primitives separately */
if(asym->typ.basetype->typ.typecode != NC_CHAR) commify(code);
genjstd_primattribute(asym, code, len);
bbFree(code);
}
static void
genjstd_primattribute(Symbol* asym, Bytebuffer* code, unsigned long len)
{
Symbol* basetype = asym->typ.basetype;
nc_type typecode = basetype->typ.typecode;
/* Handle NC_CHAR specially */
if(typecode == NC_CHAR) {
/* revise the length count */
len = bbLength(code);
if(len == 0) {bbAppend(code,'\0'); len++;}
jquotestring(code,'"');
} else {
/* Convert to constant */
char* code2 = bbDup(code);
bbClear(code);
nprintf(stmt,sizeof(stmt),"new %s[]",
jarraytype(typecode));
bbCat(code,stmt);
bbCat(code,"{");
bbCat(code,code2);
bbCat(code,"}");
efree(code2);
}
switch (typecode) {
case NC_BYTE:
case NC_SHORT:
case NC_INT:
case NC_FLOAT:
case NC_DOUBLE:
jlined(1,"{");
nprintf(stmt,sizeof(stmt),"%sArray data = Array.factory(%s.class, new int[]{%lu}, ",
indented(1),
jtype(basetype->typ.typecode),
len);
jpartial(stmt);
jprint(code);
jline(");");
if(asym->att.var == NULL) {
nprintf(stmt,sizeof(stmt),"ncfile.addGlobalAttribute(\"%s\",data);",
jescapifyname(asym->name));
} else {
nprintf(stmt,sizeof(stmt),"ncfile.addVariableAttribute(\"%s\",\"%s\",data);",
jescapifyname(asym->att.var->name),
jescapifyname(asym->name));
}
jlined(1,stmt);
jlined(1,"}");
jflush();
break;
case NC_CHAR:
if(asym->att.var == NULL) {
nprintf(stmt,sizeof(stmt),"ncfile.addGlobalAttribute(\"%s\",%s);",
jescapifyname(asym->name),
bbContents(code));
} else {
nprintf(stmt,sizeof(stmt),"ncfile.addVariableAttribute(\"%s\",\"%s\",%s);",
jescapifyname(asym->att.var->name),
jescapifyname(asym->name),
bbContents(code));
}
jlined(1,stmt);
jflush();
break;
default: break;
}
}
static void
computemaxunlimited(void)
{
int i;
unsigned long maxsize;
Symbol* udim = rootgroup->grp.unlimiteddim;
if(udim == NULL) return; /* there is no unlimited dimension*/
/* Look at each variable and see what*/
/* size it gives to the unlimited dim (if any)*/
maxsize = 0;
for(i=0;i<listlength(vardefs);i++) {
Symbol* dim;
Symbol* var = (Symbol*)listget(vardefs,i);
if(var->typ.dimset.ndims == 0) continue; /* rank == 0*/
dim = var->typ.dimset.dimsyms[0];
if(dim->dim.size != NC_UNLIMITED) continue; /* var does not use unlimited*/
if(var->typ.dimset.dimsyms[0]->dim.size > maxsize)
maxsize = var->typ.dimset.dimsyms[0]->dim.size;
}
}
static void
genjstd_definevardata(Symbol* vsym)
{
Dimset* dimset = &vsym->typ.dimset;
Symbol* basetype = vsym->typ.basetype;
int rank = dimset->ndims;
int isscalar = (dimset->ndims == 0);
Bytebuffer* code;
nc_type typecode = basetype->typ.typecode;
if(vsym->data == NULL) return;
code = bbNew();
jlined(1,"{");
/* Handle special cases first*/
if(isscalar) {
/* Construct the data Array */
nprintf(stmt,sizeof(stmt),"Array%s.D0 data = new Array%s.D0();",
jtypecap(typecode), jtypecap(typecode));
jlined(1,stmt);
/* Fill it */
genjstd_scalardata(vsym,code);
if(typecode == NC_CHAR) {
nprintf(stmt,sizeof(stmt),"data.set(%s.charAt(0));",
bbContents(code));
} else {
nprintf(stmt,sizeof(stmt),"data.set((%s)%s);",
jtype(typecode),bbContents(code));
}
jlined(1,stmt);
} else { /* Non-scalar*/
int i;
Bytebuffer* dimbuf = bbNew();
/* Store the data */
genjstd_arraydata(vsym,NULL,code);
/* Construct the dimension set*/
bbCat(dimbuf,"new int[]{");
for(i=0;i<rank;i++) {
Symbol* dsym = dimset->dimsyms[i];
char tmp[32];
if(i==0 && dsym->dim.size == NC_UNLIMITED)
nprintf(tmp,sizeof(tmp),"%lu",dsym->dim.unlimitedsize);
else
nprintf(tmp,sizeof(tmp),"%lu",dsym->dim.size);
if(i>0) {bbCat(dimbuf,", ");}
bbCat(dimbuf,tmp);
}
bbCat(dimbuf,"}");
/* Construct the data array and capture its index */
if(typecode == NC_CHAR)
nprintf(stmt,sizeof(stmt),"%sString contents = ",
indented(1));
else
nprintf(stmt,sizeof(stmt),"%s%s[] contents = new %s[] {",
indented(1),jtype(typecode),jtype(typecode));
jpartial(stmt);
commify(code);
jprint(code);
if(typecode != NC_CHAR) jpartial("}");
jline(";");
nprintf(stmt,sizeof(stmt),"Array%s data = new Array%s(%s);",
jtypecap(typecode), jtypecap(typecode), bbContents(dimbuf));
jlined(1,stmt);
jlined(1,"IndexIterator iter = data.getIndexIterator();");
jlined(1,"int count = 0;");
jlined(1,"while(iter.hasNext())");
if(typecode == NC_CHAR)
nprintf(stmt,sizeof(stmt),
"iter.setCharNext(contents.charAt(count++));");
else
nprintf(stmt,sizeof(stmt),"iter.set%sNext(contents[count++]);",
jtypecap(typecode));
jlined(2,stmt);
bbFree(dimbuf);
}
/* do the actual write */
nprintf(stmt,sizeof(stmt),"ncfile.write(\"%s\",data);",
jescapifyname(vsym->name));
jlined(1,stmt);
bbFree(code);
jlined(1,"}");
jflush();
}
const char*
jtypeallcaps(nc_type type)
{
switch (type) {
case NC_CHAR: return "CHAR";
case NC_BYTE: return "BYTE";
case NC_SHORT: return "SHORT";
case NC_INT: return "INT";
case NC_FLOAT: return "FLOAT";
case NC_DOUBLE: return "DOUBLE";
case NC_UBYTE: return "LONG";
case NC_USHORT: return "LONG";
case NC_UINT: return "LONG";
case NC_INT64: return "LONG";
case NC_UINT64: return "LONG";
case NC_STRING: return "STRING";
default: PANIC1("ncctype: bad type code:%d",type);
}
return 0;
}
const char*
jtypecap(nc_type type)
{
switch (type) {
case NC_CHAR: return "Char";
case NC_BYTE: return "Byte";
case NC_SHORT: return "Short";
case NC_INT: return "Int";
case NC_FLOAT: return "Float";
case NC_DOUBLE: return "Double";
case NC_UBYTE: return "Long";
case NC_USHORT: return "Long";
case NC_UINT: return "Long";
case NC_INT64: return "Long";
case NC_UINT64: return "Long";
case NC_STRING: return "String";
case NC_ENUM: return "Int";
case NC_OPAQUE: return "String";
default: PANIC1("ncctype: bad type code:%d",type);
}
return 0;
}
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