mirror of
https://github.com/Unidata/netcdf-c.git
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686 lines
19 KiB
C
686 lines
19 KiB
C
/*********************************************************************
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* Copyright 1993, UCAR/Unidata
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* See netcdf/COPYRIGHT file for copying and redistribution conditions.
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* $Header: /upc/share/CVS/netcdf-3/ncgen/genj.c,v 1.2 2010/05/17 23:26:44 dmh Exp $
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*********************************************************************/
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#include "includes.h"
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#include "nciter.h"
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#ifdef ENABLE_JAVA
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#undef EXCEPTWRAP
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#undef TRACE
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/*MNEMONIC*/
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#define USEMEMORY 1
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extern List* vlenconstants; /* List<Constant*>;*/
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/* Forward */
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static void genj_definevardata(Symbol* vsym);
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static void genj_defineattribute(Symbol* asym);
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static void genj_definevardata(Symbol*);
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static void genj_write(Symbol*, Bytebuffer*, Odometer*, int, int);
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static const char* jtypeallcaps(nc_type type);
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static const char* jtypecap(nc_type type);
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static const char* jtype(nc_type type);
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static const char* jarraytype(nc_type type);
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static const char* jname(Symbol* sym);
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static void computemaxunlimited(void);
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/*
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* Generate code for creating netCDF from in-memory structure.
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*/
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void
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gen_ncjava(const char *filename)
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{
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int idim, ivar, iatt, maxdims;
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int ndims, nvars, natts, ngatts, ngrps, ntyps;
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char* cmode_string;
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ndims = listlength(dimdefs);
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nvars = listlength(vardefs);
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natts = listlength(attdefs);
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ngatts = listlength(gattdefs);
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ngrps = listlength(grpdefs);
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ntyps = listlength(typdefs);
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/* Construct the main class */
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codeline("import java.util.*;");
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codeline("import ucar.ma2.*;");
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codeline("import ucar.nc2.*;");
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codeline("import ucar.nc2.NetcdfFile.*;");
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codeline("");
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codepartial("public class ");
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codeline(mainname);
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codeline("{");
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/* Now construct the main procedure*/
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codeline("");
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codeline("static public void main(String[] argv) throws Exception");
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codeline("{");
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/* create necessary declarations */
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if(ndims > 0) {
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codeline("");
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codelined(1,"/* dimension lengths */");
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for(idim = 0; idim < ndims; idim++) {
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Symbol* dsym = (Symbol*)listget(dimdefs,idim);
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if(dsym->dim.declsize == NC_UNLIMITED) {
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bbprintf0(stmt,"%sfinal int %s_len = 0;\n",
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indented(1),jname(dsym));
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} else {
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bbprintf0(stmt,"%sfinal int %s_len = %lu;\n",
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indented(1),
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jname(dsym),
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(unsigned long) dsym->dim.declsize);
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}
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codedump(stmt);
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}
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}
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codeflush();
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maxdims = 0; /* most dimensions of any variable */
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for(ivar = 0; ivar < nvars; ivar++) {
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Symbol* vsym = (Symbol*)listget(vardefs,ivar);
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if(vsym->typ.dimset.ndims > maxdims)
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maxdims = vsym->typ.dimset.ndims;
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}
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codeline("");
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#ifdef EXCEPTWRAP
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codelined(1,"try {");
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#endif
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/* create netCDF file, uses NC_CLOBBER mode */
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codeline("");
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codelined(1,"/* enter define mode */");
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if(!cmode_modifier) {
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cmode_string = "NC_CLOBBER";
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} else if(cmode_modifier & NC_64BIT_OFFSET) {
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cmode_string = "NC_CLOBBER|NC_64BIT_OFFSET";
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} else {
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derror("unknown cmode modifier");
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cmode_string = "NC_CLOBBER";
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}
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bbprintf0(stmt,
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"%sNetcdfFileWriteable ncfile = NetcdfFileWriteable.createNew(\"%s\", %s);\n",
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indented(1),filename,(nofill_flag?"false":"true"));
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codedump(stmt);
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codeflush();
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/* define dimensions from info in dims array */
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if(ndims > 0) {
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codeline("");
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codelined(1,"/* define dimensions */");
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for(idim = 0; idim < ndims; idim++) {
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Symbol* dsym = (Symbol*)listget(dimdefs,idim);
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if(dsym->dim.declsize == NC_UNLIMITED) {
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bbprintf0(stmt,"%sDimension %s_dim = ncfile.addUnlimitedDimension(\"%s\");\n",
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indented(1),jname(dsym),jescapifyname(dsym->name));
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} else {
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bbprintf0(stmt,"%sDimension %s_dim = ncfile.addDimension(\"%s\", %s_len);\n",
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indented(1),jname(dsym),jescapifyname(dsym->name), jname(dsym));
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}
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codedump(stmt);
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}
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codeflush();
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}
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/* define variables from info in vars array */
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if(nvars > 0) {
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codeline("");
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codelined(1,"/* define variables */");
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for(ivar = 0; ivar < nvars; ivar++) {
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Symbol* vsym = (Symbol*)listget(vardefs,ivar);
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Symbol* basetype = vsym->typ.basetype;
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Dimset* dimset = &vsym->typ.dimset;
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codeline("");
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bbprintf0(stmt,"%sArrayList %s_dimlist = new ArrayList();\n",
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indented(1),jname(vsym));
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codedump(stmt);
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if(dimset->ndims > 0) {
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for(idim = 0; idim < dimset->ndims; idim++) {
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Symbol* dsym = dimset->dimsyms[idim];
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bbprintf0(stmt,"%s%s_dimlist.add(%s_dim);\n",
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indented(1),jname(vsym),jname(dsym));
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codedump(stmt);
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}
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}
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bbprintf0(stmt,
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"%sncfile.addVariable(\"%s\", DataType.%s, %s_dimlist);\n",
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indented(1),
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jescapifyname(vsym->name),
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jtypeallcaps(basetype->typ.typecode),
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jname(vsym));
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codedump(stmt);
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}
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codeflush();
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}
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/* Define the global attributes*/
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if(ngatts > 0) {
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codeline("");
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codelined(1,"/* assign global attributes */");
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for(iatt = 0; iatt < ngatts; iatt++) {
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Symbol* gasym = (Symbol*)listget(gattdefs,iatt);
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genj_defineattribute(gasym);
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}
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codeline("");
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codeflush();
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}
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/* Define the variable specific attributes*/
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if(natts > 0) {
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codeline("");
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codelined(1,"/* assign per-variable attributes */");
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for(iatt = 0; iatt < natts; iatt++) {
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Symbol* asym = (Symbol*)listget(attdefs,iatt);
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genj_defineattribute(asym);
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}
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codeline("");
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codeflush();
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}
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codelined(1,"ncfile.create();"); /* equiv to nc_enddef */
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/* Load values into those variables with defined data */
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if(nvars > 0) {
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codeline("");
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codelined(1,"/* assign variable data */");
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for(ivar = 0; ivar < nvars; ivar++) {
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Symbol* vsym = (Symbol*)listget(vardefs,ivar);
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if(vsym->data != NULL) genj_definevardata(vsym);
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}
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codeline("");
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/* compute the max actual size of the unlimited dimension*/
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if(usingclassic) computemaxunlimited();
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}
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codeflush();
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}
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void
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cl_java(void)
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{
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codelined(1,"ncfile.close();");
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codeline("");
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#ifdef EXCEPTIONWRAP
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codelined(1,"} catch(Exception e) {e.printStackTrace();};");
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#endif
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codelined(1,"}"); /* main */
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codeline("}"); /* class Main */
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codeflush();
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}
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static void
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computemaxunlimited(void)
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{
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int i;
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unsigned long maxsize;
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Symbol* udim = rootgroup->grp.unlimiteddim;
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if(udim == NULL) return; /* there is no unlimited dimension*/
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/* Look at each variable and see what*/
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/* size it gives to the unlimited dim (if any)*/
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maxsize = 0;
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for(i=0;i<listlength(vardefs);i++) {
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Symbol* dim;
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Symbol* var = (Symbol*)listget(vardefs,i);
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if(var->typ.dimset.ndims == 0) continue; /* rank == 0*/
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dim = var->typ.dimset.dimsyms[0];
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if(dim->dim.declsize != NC_UNLIMITED) continue; /* var does not use unlimited*/
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if(var->typ.dimset.dimsyms[0]->dim.declsize > maxsize)
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maxsize = var->typ.dimset.dimsyms[0]->dim.declsize;
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}
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}
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/*
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* Return java type name for netCDF type, given type code.
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*/
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static void
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genj_defineattribute(Symbol* asym)
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{
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unsigned long len;
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Symbol* basetype = asym->typ.basetype;
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Datalist* list;
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Bytebuffer* code = NULL; /* capture other decls*/
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nc_type typecode = basetype->typ.typecode;
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list = asym->data;
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len = list == NULL?0:list->length;
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codeprintf("%s/* attribute: %s */\n",indented(1),asym->name);
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code = bbNew();
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if(typecode == NC_CHAR) {
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gen_charattr(asym,code);
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} else {
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Datasrc* src = datalist2src(asym->data);
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while(srcmore(src)) {
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jdata_basetype(asym->typ.basetype,src,code,NULL);
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}
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}
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/* Handle NC_CHAR specially */
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if(typecode == NC_CHAR) {
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/* revise the length count */
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len = bbLength(code);
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if(len == 0) {
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bbAppend(code,'\0'); len++;
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bbClear(code);
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bbCat(code,"\"\"");
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} else
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jquotestring(code,'"');
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bbNull(code);
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} else {
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char* code2;
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commify(code);
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/* Convert to constant */
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code2 = bbDup(code);
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bbClear(code);
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bbprintf0(stmt,"new %s[]",
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jarraytype(typecode));
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bbCatbuf(code,stmt);
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bbCat(code,"{");
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bbCat(code,code2);
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bbCat(code,"}");
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efree(code2);
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}
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switch (typecode) {
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case NC_BYTE:
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case NC_SHORT:
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case NC_INT:
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case NC_FLOAT:
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case NC_DOUBLE:
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codelined(1,"{");
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bbprintf0(stmt,"%sArray data = Array.factory(%s.class, new int[]{%lu}, ",
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indented(1),
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jtype(basetype->typ.typecode),
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len);
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codedump(stmt);
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codedump(code);
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codeline(");");
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if(asym->att.var == NULL) {
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bbprintf0(stmt,"%sncfile.addGlobalAttribute(\"%s\",data);\n",
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indented(1),jescapifyname(asym->name));
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} else {
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bbprintf0(stmt,"%sncfile.addVariableAttribute(\"%s\",\"%s\",data);\n",
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indented(1),
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jescapifyname(asym->att.var->name),
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jescapifyname(asym->name));
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}
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codedump(stmt);
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codelined(1,"}");
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codeflush();
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break;
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case NC_CHAR:
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if(asym->att.var == NULL) {
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bbprintf0(stmt,"%sncfile.addGlobalAttribute(\"%s\",%s);\n",
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indented(1),
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jescapifyname(asym->name),
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bbContents(code));
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} else {
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bbprintf0(stmt,"%sncfile.addVariableAttribute(\"%s\",\"%s\",%s);\n",
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indented(1),
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jescapifyname(asym->att.var->name),
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jescapifyname(asym->name),
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bbContents(code));
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}
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codedump(stmt);
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codeflush();
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break;
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default: break;
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}
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}
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const char*
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jtypeallcaps(nc_type type)
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{
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switch (type) {
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case NC_CHAR: return "CHAR";
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case NC_BYTE: return "BYTE";
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case NC_SHORT: return "SHORT";
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case NC_INT: return "INT";
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case NC_FLOAT: return "FLOAT";
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case NC_DOUBLE: return "DOUBLE";
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case NC_UBYTE: return "LONG";
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case NC_USHORT: return "LONG";
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case NC_UINT: return "LONG";
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case NC_INT64: return "LONG";
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case NC_UINT64: return "LONG";
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case NC_STRING: return "STRING";
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default: PANIC1("ncctype: bad type code:%d",type);
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}
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return 0;
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}
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static const char*
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jtypecap(nc_type type)
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{
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switch (type) {
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case NC_CHAR: return "Char";
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case NC_BYTE: return "Byte";
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case NC_SHORT: return "Short";
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case NC_INT: return "Int";
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case NC_FLOAT: return "Float";
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case NC_DOUBLE: return "Double";
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case NC_UBYTE: return "Long";
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case NC_USHORT: return "Long";
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case NC_UINT: return "Long";
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case NC_INT64: return "Long";
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case NC_UINT64: return "Long";
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case NC_STRING: return "String";
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case NC_ENUM: return "Int";
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case NC_OPAQUE: return "String";
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default: PANIC1("ncctype: bad type code:%d",type);
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}
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return 0;
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}
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void
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jquotestring(Bytebuffer* databuf, char quote)
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{
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char* escaped = jescapify(bbContents(databuf),'"',bbLength(databuf));
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bbClear(databuf);
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bbAppend(databuf,quote);
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if(escaped != NULL) bbCat(databuf,escaped);
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bbAppend(databuf,quote);
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}
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/* Compute the name for a given symbol*/
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/* Cache in symbol->lname*/
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static const char*
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jname(Symbol* sym)
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{
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if(sym->lname == NULL) {
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if(sym->objectclass == NC_ATT && sym->att.var != NULL) {
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/* Attribute name must be prefixed with the jname of the*/
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/* associated variable*/
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char* lname;
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lname = (char*)emalloc(strlen(sym->att.var->name)
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+strlen(sym->name)
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+1+1);
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lname[0] = '\0';
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strcpy(lname,sym->att.var->name);
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strcat(lname,"_");
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strcat(lname,sym->name);
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/* Now convert to java acceptable name */
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sym->lname = nulldup(jdecodify(lname));
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} else {
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/* convert to language form*/
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sym->lname = nulldup(jdecodify(sym->name)); /* convert to usable form*/
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}
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}
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return sym->lname;
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}
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/*
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* Return java type name for netCDF type, given type code.
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*/
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static const char*
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jtype(nc_type type)
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{
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switch (type) {
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case NC_CHAR: return "char";
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case NC_BYTE: return "byte";
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case NC_SHORT: return "short";
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case NC_INT: return "int";
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case NC_FLOAT: return "float";
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case NC_DOUBLE: return "double";
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case NC_UBYTE: return "long";
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case NC_USHORT: return "long";
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case NC_UINT: return "long";
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case NC_INT64: return "long";
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case NC_UINT64: return "long";
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case NC_STRING: return "String";
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case NC_ENUM: return "int";
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case NC_OPAQUE: return "String";
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default: PANIC1("ncctype: bad type code:%d",type);
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}
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return 0;
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}
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/*
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* Return a type name and dimensions for constant arrays
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* for netCDF type, given type code.
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*/
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static const char*
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jarraytype(nc_type type)
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{
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switch (type) {
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case NC_CHAR:
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return "String";
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case NC_BYTE:
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return "byte";
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case NC_SHORT:
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return "short";
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case NC_INT:
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return "int";
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case NC_FLOAT:
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return "float";
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case NC_DOUBLE:
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return "double";
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case NC_UBYTE:
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return "long";
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case NC_USHORT:
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return "long";
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case NC_UINT:
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return "long";
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case NC_INT64:
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return "long";
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case NC_UINT64:
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return "long";
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case NC_STRING:
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return "String";
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case NC_ENUM:
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return "int";
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case NC_OPAQUE:
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return "String";
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default:
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PANIC1("ncctype: bad type code:%d",type);
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}
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return 0;
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}
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/*
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* Return netcdf interface type name for netCDF type suffix, given type code.
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*/
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const char*
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jstype(nc_type nctype)
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{
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switch (nctype) {
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case NC_CHAR:
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return "text";
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case NC_BYTE:
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return "schar";
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case NC_SHORT:
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return "short";
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case NC_INT:
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return "int";
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case NC_FLOAT:
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return "float";
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case NC_DOUBLE:
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return "double";
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case NC_UBYTE:
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return "ubyte";
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case NC_USHORT:
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return "ushort";
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case NC_UINT:
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return "uint";
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case NC_INT64:
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return "longlong";
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case NC_UINT64:
|
|
return "ulonglong";
|
|
case NC_STRING:
|
|
return "string";
|
|
case NC_OPAQUE:
|
|
return "opaque";
|
|
case NC_ENUM:
|
|
return "enum";
|
|
default:
|
|
derror("ncstype: bad type code: %d",nctype);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
static void
|
|
genj_definevardata(Symbol* vsym)
|
|
{
|
|
Dimset* dimset = &vsym->typ.dimset;
|
|
int isscalar = (dimset->ndims == 0);
|
|
Bytebuffer* code;
|
|
Datasrc* src = NULL;
|
|
Datalist* fillsrc = NULL;
|
|
nciter_t iter;
|
|
Odometer* odom = NULL;
|
|
size_t nelems;
|
|
int chartype = (vsym->typ.basetype->typ.typecode == NC_CHAR);
|
|
|
|
if(vsym->data == NULL) return;
|
|
|
|
code = bbNew();
|
|
/* give the buffer a running start to be large enough*/
|
|
bbSetalloc(code, nciterbuffersize);
|
|
|
|
src = datalist2src(vsym->data);
|
|
fillsrc = vsym->var.special._Fillvalue;
|
|
|
|
/* Handle special cases first*/
|
|
if(isscalar) {
|
|
jdata_basetype(vsym->typ.basetype,src,code,fillsrc);
|
|
commify(code);
|
|
genj_write(vsym,code,NULL,1,0);
|
|
} else { /* Non-scalar*/
|
|
int index;
|
|
/* Create an iterator to generate blocks of data */
|
|
nc_get_iter(vsym,nciterbuffersize,&iter);
|
|
/* Fill in the local odometer instance */
|
|
odom = newodometer(&vsym->typ.dimset,NULL,NULL);
|
|
for(index=0;;index++) {
|
|
nelems=nc_next_iter(&iter,odom->start,odom->count);
|
|
if(nelems == 0) break;
|
|
if(chartype) {/* Handle character case separately */
|
|
gen_chararray(vsym,code,src,odom,0);
|
|
} else {
|
|
jdata_array(vsym,code,src,odom,/*index=*/0,fillsrc);
|
|
}
|
|
genj_write(vsym,code,odom,0,index);
|
|
}
|
|
}
|
|
odometerfree(odom);
|
|
bbFree(code);
|
|
}
|
|
|
|
static void
|
|
genj_write(Symbol* vsym, Bytebuffer* code, Odometer* odom, int isscalar, int index)
|
|
{
|
|
Dimset* dimset = &vsym->typ.dimset;
|
|
int rank = dimset->ndims;
|
|
int typecode = vsym->typ.basetype->typ.typecode;
|
|
int chartype = (typecode == NC_CHAR);
|
|
int i;
|
|
|
|
codeline("");
|
|
codelined(1,"{"); /* Enclose in {...} for scoping */
|
|
|
|
if(isscalar) {
|
|
/* Construct the data Array */
|
|
bbprintf0(stmt,"%sArray%s.D0 data = new Array%s.D0();\n",
|
|
indented(1),jtypecap(typecode), jtypecap(typecode));
|
|
codedump(stmt);
|
|
if(chartype) {
|
|
#ifdef IGNORE
|
|
jquotestring(code,'"');
|
|
bbprintf0(stmt,"%sdata.set(%s.charAt(0));\n",
|
|
indented(1),bbContents(code));
|
|
#else
|
|
bbprintf0(stmt,"%sdata.set((char)%s);\n",
|
|
indented(1),bbContents(code));
|
|
#endif
|
|
} else {
|
|
bbprintf0(stmt,"%sdata.set((%s)%s);\n",
|
|
indented(1),jtype(typecode),bbContents(code));
|
|
}
|
|
codedump(stmt);
|
|
/* do the actual write */
|
|
bbprintf0(stmt,"%sncfile.write(\"%s\",data);\n",
|
|
indented(1),jescapifyname(vsym->name));
|
|
codedump(stmt);
|
|
} else { /* array */
|
|
Bytebuffer* dimbuf = bbNew();
|
|
/* 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.declsize == NC_UNLIMITED)
|
|
nprintf(tmp,sizeof(tmp),"%lu",dsym->dim.unlimitedsize);
|
|
else
|
|
nprintf(tmp,sizeof(tmp),"%lu",dsym->dim.declsize);
|
|
if(i>0) {bbCat(dimbuf,", ");}
|
|
bbCat(dimbuf,tmp);
|
|
}
|
|
bbCat(dimbuf,"}");
|
|
/* Construct the data array and capture its index */
|
|
if(typecode == NC_CHAR) {
|
|
jquotestring(code,'"');
|
|
bbprintf0(stmt,"%sString contents = ",
|
|
indented(1));
|
|
} else {
|
|
bbprintf0(stmt,"%s%s[] contents = new %s[] {",
|
|
indented(1),jtype(typecode),jtype(typecode));
|
|
commify(code);
|
|
}
|
|
codedump(stmt);
|
|
codedump(code);
|
|
if(typecode != NC_CHAR) codepartial("}");
|
|
codeline(";");
|
|
bbprintf0(stmt,"%sArray%s data = new Array%s(%s);\n",
|
|
indented(1),
|
|
jtypecap(typecode),
|
|
jtypecap(typecode),
|
|
bbContents(dimbuf));
|
|
codedump(stmt);
|
|
codelined(1,"IndexIterator iter = data.getIndexIterator();");
|
|
codelined(1,"int count = 0;");
|
|
codelined(1,"while(iter.hasNext())");
|
|
if(typecode == NC_CHAR)
|
|
bbprintf0(stmt,
|
|
"%siter.setCharNext(contents.charAt(count++));\n",indented(2));
|
|
else
|
|
bbprintf0(stmt,"%siter.set%sNext(contents[count++]);\n",
|
|
indented(2),jtypecap(typecode));
|
|
codedump(stmt);
|
|
bbFree(dimbuf);
|
|
/* Construct the origin set from the odometer start set */
|
|
bbprintf0(stmt,"%sint[] origin = new int[]{",indented(1));
|
|
for(i=0;i<rank;i++) {
|
|
bbprintf(stmt,"%s%lu",(i>0?", ":""),odom->start[i]);
|
|
}
|
|
bbCat(stmt,"};\n");
|
|
codedump(stmt);
|
|
/* do the actual write */
|
|
bbprintf0(stmt,"%sncfile.write(\"%s\",origin,data);\n",
|
|
indented(1),jescapifyname(vsym->name));
|
|
codedump(stmt);
|
|
}
|
|
codelined(1,"}"); /* Enclose in {...} for scoping */
|
|
}
|
|
#endif /*ENABLE_JAVA*/
|