[409] | 1 | /********************************************************************* |
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| 2 | * Copyright 1993, UCAR/Unidata |
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| 3 | * See netcdf/COPYRIGHT file for copying and redistribution conditions. |
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| 4 | *********************************************************************/ |
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| 5 | |
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| 6 | #include "ncdap3.h" |
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| 7 | #include "nc3dispatch.h" |
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| 8 | #include "ncd3dispatch.h" |
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| 9 | #include "dapalign.h" |
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| 10 | #include "dapdump.h" |
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| 11 | #include "oc.h" |
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| 12 | |
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| 13 | #define getncid(drno) (((NC*)drno)->ext_ncid) |
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| 14 | |
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| 15 | /*Forward*/ |
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| 16 | static NCerror getseqdimsize(NCDAPCOMMON*, CDFnode* seq, size_t* sizep); |
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| 17 | static int fieldindex(CDFnode* parent, CDFnode* child); |
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| 18 | static NCerror countsequence(NCDAPCOMMON*, CDFnode* node, size_t*); |
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| 19 | static NCerror makeseqdim(NCDAPCOMMON*, CDFnode* node, size_t, CDFnode**); |
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| 20 | static NCerror computeseqcountconstraints3(NCDAPCOMMON*,CDFnode*,NCbytes*); |
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| 21 | static void computeseqcountconstraints3r(NCDAPCOMMON*, CDFnode*, CDFnode**); |
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| 22 | |
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| 23 | void |
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| 24 | freegetvara(Getvara* vara) |
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| 25 | { |
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| 26 | if(vara == NULL) return; |
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| 27 | dcefree((DCEnode*)vara->varaprojection); |
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| 28 | nullfree(vara); |
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| 29 | } |
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| 30 | |
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| 31 | NCerror |
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| 32 | freeNCDAPCOMMON(NCDAPCOMMON* dapcomm) |
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| 33 | { |
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| 34 | /* abort the metadata file */ |
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| 35 | (void)nc_abort(getncid(dapcomm)); |
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| 36 | freenccache(dapcomm,dapcomm->cdf.cache); |
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| 37 | nclistfree(dapcomm->cdf.varnodes); |
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| 38 | nclistfree(dapcomm->cdf.seqnodes); |
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| 39 | nclistfree(dapcomm->cdf.gridnodes); |
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| 40 | nclistfree(dapcomm->cdf.usertypes); |
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| 41 | nullfree(dapcomm->cdf.recorddimname); |
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| 42 | |
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| 43 | /* free the trees */ |
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| 44 | freecdfroot34(dapcomm->cdf.ddsroot); |
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| 45 | dapcomm->cdf.ddsroot = NULL; |
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| 46 | freecdfroot34(dapcomm->cdf.fullddsroot); |
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| 47 | dapcomm->cdf.fullddsroot = NULL; |
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| 48 | if(dapcomm->oc.ocdasroot != NULL) |
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| 49 | oc_root_free(dapcomm->oc.conn,dapcomm->oc.ocdasroot); |
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| 50 | dapcomm->oc.ocdasroot = NULL; |
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| 51 | oc_close(dapcomm->oc.conn); /* also reclaims remaining OC trees */ |
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| 52 | nc_urifree(dapcomm->oc.url); |
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| 53 | nullfree(dapcomm->oc.urltext); |
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| 54 | nullfree(dapcomm->oc.rawurltext); |
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| 55 | |
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| 56 | dcefree((DCEnode*)dapcomm->oc.dapconstraint); |
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| 57 | dapcomm->oc.dapconstraint = NULL; |
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| 58 | |
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| 59 | free(dapcomm); |
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| 60 | |
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| 61 | return NC_NOERR; |
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| 62 | } |
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| 63 | |
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| 64 | NCerror |
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| 65 | addstringdims(NCDAPCOMMON* dapcomm) |
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| 66 | { |
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| 67 | /* for all variables of string type, we will need another dimension |
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| 68 | to represent the string; Accumulate the needed sizes and create |
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| 69 | the dimensions with a specific name: either as specified |
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| 70 | in DODS{...} attribute set or defaulting to the variable name. |
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| 71 | All such dimensions are global. |
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| 72 | */ |
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| 73 | int i; |
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| 74 | NClist* varnodes = dapcomm->cdf.varnodes; |
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| 75 | CDFnode* globalsdim = NULL; |
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| 76 | char dimname[4096]; |
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| 77 | size_t dimsize; |
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| 78 | |
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| 79 | /* Start by creating the global string dimension */ |
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| 80 | snprintf(dimname,sizeof(dimname),"maxStrlen%lu", |
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| 81 | (unsigned long)dapcomm->cdf.defaultstringlength); |
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| 82 | globalsdim = makecdfnode34(dapcomm, dimname, OC_Dimension, OCNULL, |
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| 83 | dapcomm->cdf.ddsroot); |
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| 84 | nclistpush(dapcomm->cdf.ddsroot->tree->nodes,(ncelem)globalsdim); |
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| 85 | DIMFLAGSET(globalsdim,CDFDIMSTRING); |
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| 86 | globalsdim->dim.declsize = dapcomm->cdf.defaultstringlength; |
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| 87 | globalsdim->dim.declsize0 = globalsdim->dim.declsize; |
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| 88 | globalsdim->dim.array = dapcomm->cdf.ddsroot; |
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| 89 | globalsdim->ncbasename = cdflegalname3(dimname); |
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| 90 | globalsdim->ncfullname = nulldup(globalsdim->ncbasename); |
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| 91 | dapcomm->cdf.globalstringdim = globalsdim; |
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| 92 | |
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| 93 | for(i=0;i<nclistlength(varnodes);i++) { |
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| 94 | CDFnode* var = (CDFnode*)nclistget(varnodes,i); |
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| 95 | CDFnode* sdim = NULL; |
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| 96 | |
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| 97 | /* Does this node need a string dim? */ |
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| 98 | if(var->etype != NC_STRING && var->etype != NC_URL) continue; |
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| 99 | |
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| 100 | dimsize = 0; |
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| 101 | if(var->dodsspecial.maxstrlen > 0) |
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| 102 | dimsize = var->dodsspecial.maxstrlen; |
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| 103 | else |
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| 104 | dimsize = var->maxstringlength; |
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| 105 | |
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| 106 | /* check is a variable-specific string length was specified */ |
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| 107 | if(dimsize == 0) |
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| 108 | sdim = dapcomm->cdf.globalstringdim; /* use default */ |
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| 109 | else { |
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| 110 | /* create a psuedo dimension for the charification of the string*/ |
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| 111 | if(var->dodsspecial.dimname != NULL) |
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| 112 | strncpy(dimname,var->dodsspecial.dimname,sizeof(dimname)); |
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| 113 | else |
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| 114 | snprintf(dimname,sizeof(dimname),"maxStrlen%lu", |
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| 115 | (unsigned long)dimsize); |
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| 116 | sdim = makecdfnode34(dapcomm, dimname, OC_Dimension, OCNULL, |
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| 117 | dapcomm->cdf.ddsroot); |
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| 118 | if(sdim == NULL) return THROW(NC_ENOMEM); |
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| 119 | nclistpush(dapcomm->cdf.ddsroot->tree->nodes,(ncelem)sdim); |
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| 120 | DIMFLAGSET(sdim,CDFDIMSTRING); |
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| 121 | sdim->dim.declsize = dimsize; |
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| 122 | sdim->dim.declsize0 = dimsize; |
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| 123 | sdim->dim.array = var; |
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| 124 | sdim->ncbasename = cdflegalname3(sdim->ocname); |
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| 125 | sdim->ncfullname = nulldup(sdim->ncbasename); |
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| 126 | } |
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| 127 | /* tag the variable with its string dimension*/ |
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| 128 | var->array.stringdim = sdim; |
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| 129 | } |
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| 130 | return NC_NOERR; |
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| 131 | } |
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| 132 | |
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| 133 | NCerror |
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| 134 | defrecorddim3(NCDAPCOMMON* dapcomm) |
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| 135 | { |
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| 136 | unsigned int i; |
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| 137 | NCerror ncstat = NC_NOERR; |
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| 138 | NClist* basedims; |
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| 139 | |
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| 140 | if(dapcomm->cdf.recorddimname == NULL) return NC_NOERR; /* ignore */ |
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| 141 | /* Locate the base dimension matching the record dim */ |
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| 142 | basedims = dapcomm->cdf.dimnodes; |
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| 143 | for(i=0;i<nclistlength(basedims);i++) { |
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| 144 | CDFnode* dim = (CDFnode*)nclistget(basedims,i); |
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| 145 | if(strcmp(dim->ocname,dapcomm->cdf.recorddimname) != 0) continue; |
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| 146 | DIMFLAGSET(dim,CDFDIMRECORD); |
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| 147 | dapcomm->cdf.recorddim = dim; |
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| 148 | break; |
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| 149 | } |
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| 150 | |
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| 151 | return ncstat; |
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| 152 | } |
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| 153 | |
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| 154 | NCerror |
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| 155 | defseqdims(NCDAPCOMMON* dapcomm) |
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| 156 | { |
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| 157 | unsigned int i; |
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| 158 | NCerror ncstat = NC_NOERR; |
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| 159 | int seqdims = 1; /* default is to compute seq dims counts */ |
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| 160 | |
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| 161 | /* Does the user want to compute actual sequence sizes? */ |
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| 162 | if(paramvalue34(dapcomm,"noseqdims")) seqdims = 0; |
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| 163 | |
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| 164 | /* |
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| 165 | Compute and define pseudo dimensions for sequences |
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| 166 | meeting the following qualifications: |
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| 167 | 1. all parents (transitively) of the sequence must |
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| 168 | be either a dataset or a scalar structure. |
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| 169 | 2. it must be possible to find a usable sequence constraint. |
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| 170 | All other sequences will be ignored. |
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| 171 | */ |
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| 172 | |
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| 173 | for(i=0;i<nclistlength(dapcomm->cdf.seqnodes);i++) { |
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| 174 | CDFnode* seq = (CDFnode*)nclistget(dapcomm->cdf.seqnodes,i); |
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| 175 | size_t seqsize; |
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| 176 | CDFnode* sqdim = NULL; |
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| 177 | CDFnode* container; |
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| 178 | /* Does this sequence match the requirements for use ? */ |
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| 179 | seq->usesequence = 1; /* assume */ |
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| 180 | for(container=seq->container;container != NULL;container=container->container) { |
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| 181 | if(container->nctype == NC_Dataset) break; |
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| 182 | if(container->nctype != NC_Structure |
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| 183 | || nclistlength(container->array.dimset0) > 0) |
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| 184 | {seq->usesequence = 0; break;}/* no good */ |
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| 185 | } |
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| 186 | /* Does the user want us to compute the actual sequence dim size? */ |
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| 187 | if(seq->usesequence && seqdims) { |
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| 188 | ncstat = getseqdimsize(dapcomm,seq,&seqsize); |
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| 189 | if(ncstat != NC_NOERR) { |
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| 190 | /* Cannot read sequence; mark as unusable */ |
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| 191 | seq->usesequence = 0; |
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| 192 | } |
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| 193 | } else { /* !seqdims default to size = 1 */ |
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| 194 | seqsize = 1; |
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| 195 | } |
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| 196 | if(seq->usesequence) { |
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| 197 | /* Note: we are making the dimension in the dds root tree */ |
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| 198 | ncstat = makeseqdim(dapcomm,seq,seqsize,&sqdim); |
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| 199 | if(ncstat) goto fail; |
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| 200 | seq->array.seqdim = sqdim; |
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| 201 | } else |
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| 202 | seq->array.seqdim = NULL; |
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| 203 | } |
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| 204 | |
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| 205 | fail: |
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| 206 | return ncstat; |
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| 207 | } |
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| 208 | |
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| 209 | static NCerror |
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| 210 | getseqdimsize(NCDAPCOMMON* dapcomm, CDFnode* seq, size_t* sizep) |
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| 211 | { |
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| 212 | NCerror ncstat = NC_NOERR; |
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| 213 | OCerror ocstat = OC_NOERR; |
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| 214 | OCconnection conn = dapcomm->oc.conn; |
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| 215 | OCdata rootcontent = OCNULL; |
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| 216 | OCobject ocroot; |
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| 217 | CDFnode* dxdroot; |
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| 218 | CDFnode* xseq; |
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| 219 | NCbytes* seqcountconstraints = ncbytesnew(); |
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| 220 | size_t seqsize; |
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| 221 | |
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| 222 | /* Read the minimal amount of data in order to get the count */ |
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| 223 | /* If the url is unconstrainable, then get the whole thing */ |
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| 224 | computeseqcountconstraints3(dapcomm,seq,seqcountconstraints); |
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| 225 | #ifdef DEBUG |
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| 226 | fprintf(stderr,"seqcountconstraints: %s\n",ncbytescontents(seqcountconstraints)); |
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| 227 | #endif |
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| 228 | |
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| 229 | /* Fetch the minimal data */ |
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| 230 | if(FLAGSET(dapcomm->controls,NCF_UNCONSTRAINABLE)) |
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| 231 | ocstat = dap_fetch(dapcomm,conn,NULL,OCDATADDS,&ocroot); |
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| 232 | else |
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| 233 | ocstat = dap_fetch(dapcomm,conn,ncbytescontents(seqcountconstraints),OCDATADDS,&ocroot); |
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| 234 | if(ocstat) goto fail; |
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| 235 | |
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| 236 | ncstat = buildcdftree34(dapcomm,ocroot,OCDATA,&dxdroot); |
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| 237 | if(ncstat) goto fail; |
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| 238 | /* attach DATADDS to DDS */ |
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| 239 | ncstat = attach34(dxdroot,seq); |
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| 240 | if(ncstat) goto fail; |
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| 241 | |
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| 242 | /* WARNING: we are now switching to datadds tree */ |
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| 243 | xseq = seq->attachment; |
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| 244 | ncstat = countsequence(dapcomm,xseq,&seqsize); |
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| 245 | if(ncstat) goto fail; |
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| 246 | |
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| 247 | #ifdef DEBUG |
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| 248 | fprintf(stderr,"sequencesize: %s = %lu\n",seq->ocname,(unsigned long)seqsize); |
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| 249 | #endif |
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| 250 | |
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| 251 | /* throw away the fetch'd trees */ |
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| 252 | unattach34(dapcomm->cdf.ddsroot); |
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| 253 | freecdfroot34(dxdroot); |
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| 254 | if(ncstat != NC_NOERR) { |
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| 255 | /* Cannot get DATADDDS*/ |
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| 256 | char* code; |
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| 257 | char* msg; |
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| 258 | long httperr; |
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| 259 | oc_svcerrordata(dapcomm->oc.conn,&code,&msg,&httperr); |
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| 260 | if(code != NULL) { |
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| 261 | nclog(NCLOGERR,"oc_fetch_datadds failed: %s %s %l", |
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| 262 | code,msg,httperr); |
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| 263 | } |
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| 264 | ocstat = OC_NOERR; |
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| 265 | } |
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| 266 | if(sizep) *sizep = seqsize; |
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| 267 | |
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| 268 | fail: |
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| 269 | ncbytesfree(seqcountconstraints); |
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| 270 | oc_data_free(conn,rootcontent); |
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| 271 | if(ocstat) ncstat = ocerrtoncerr(ocstat); |
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| 272 | return ncstat; |
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| 273 | } |
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| 274 | |
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| 275 | static NCerror |
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| 276 | makeseqdim(NCDAPCOMMON* dapcomm, CDFnode* seq, size_t count, CDFnode** sqdimp) |
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| 277 | { |
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| 278 | CDFnode* sqdim; |
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| 279 | CDFnode* root = seq->root; |
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| 280 | CDFtree* tree = root->tree; |
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| 281 | |
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| 282 | /* build the dimension with given size; keep the dimension anonymous */ |
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| 283 | sqdim = makecdfnode34(dapcomm,seq->ocname,OC_Dimension,OCNULL,root); |
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| 284 | if(sqdim == NULL) return THROW(NC_ENOMEM); |
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| 285 | nclistpush(tree->nodes,(ncelem)sqdim); |
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| 286 | /* Assign a name to the sequence node */ |
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| 287 | sqdim->ncbasename = cdflegalname3(seq->ocname); |
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| 288 | sqdim->ncfullname = nulldup(sqdim->ncbasename); |
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| 289 | DIMFLAGSET(sqdim,CDFDIMSEQ); |
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| 290 | sqdim->dim.declsize = count; |
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| 291 | sqdim->dim.declsize0 = count; |
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| 292 | sqdim->dim.array = seq; |
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| 293 | if(sqdimp) *sqdimp = sqdim; |
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| 294 | return NC_NOERR; |
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| 295 | } |
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| 296 | |
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| 297 | static NCerror |
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| 298 | countsequence(NCDAPCOMMON* dapcomm, CDFnode* xseq, size_t* sizep) |
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| 299 | { |
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| 300 | unsigned int i; |
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| 301 | NClist* path = nclistnew(); |
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| 302 | int index; |
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| 303 | OCerror ocstat = OC_NOERR; |
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| 304 | NCerror ncstat = NC_NOERR; |
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| 305 | OCconnection conn = dapcomm->oc.conn; |
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| 306 | size_t recordcount; |
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| 307 | CDFnode* xroot; |
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| 308 | CDFnode* current; |
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| 309 | OCdata datacontainer = OCNULL; |
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| 310 | OCmode mode; |
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| 311 | |
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| 312 | ASSERT((xseq->nctype == NC_Sequence)); |
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| 313 | |
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| 314 | /* collect the path to the sequence node */ |
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| 315 | collectnodepath3(xseq,path,WITHDATASET); |
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| 316 | |
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| 317 | /* Get tree root */ |
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| 318 | xroot = xseq->root; |
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| 319 | datacontainer = oc_data_new(conn); |
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| 320 | ocstat = oc_data_root(conn,xroot->tree->ocroot,datacontainer); |
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| 321 | if(ocstat) goto fail; |
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| 322 | |
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| 323 | /* walk to the sequence object; control the movement to the next node |
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| 324 | based on mode */ |
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| 325 | current = (CDFnode*)nclistget(path,0); |
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| 326 | for(i=0;;) { |
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| 327 | OCdata child = OCNULL; |
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| 328 | CDFnode* next = NULL; |
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| 329 | ocstat = oc_data_mode(conn,datacontainer,&mode); |
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| 330 | if(ocstat != OC_NOERR) goto fail; |
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| 331 | switch (mode) { |
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| 332 | case OCFIELDMODE: |
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| 333 | i++; |
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| 334 | next = (CDFnode*)nclistget(path,i); |
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| 335 | index = fieldindex(current,next); |
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| 336 | break; |
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| 337 | case OCARRAYMODE: |
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| 338 | index = 0; |
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| 339 | break; |
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| 340 | case OCSEQUENCEMODE: |
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| 341 | goto exitloop; |
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| 342 | default: |
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| 343 | PANIC("unexpected mode"); |
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| 344 | return NC_EINVAL; |
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| 345 | } |
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| 346 | child = oc_data_new(conn); |
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| 347 | ocstat = oc_data_ith(conn,datacontainer,index,child); |
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| 348 | if(ocstat) goto fail; |
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| 349 | /* move to the next node only if it is defined */ |
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| 350 | if(next != NULL) |
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| 351 | current = next; |
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| 352 | oc_data_free(conn,datacontainer); |
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| 353 | datacontainer = child; |
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| 354 | } |
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| 355 | exitloop: |
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| 356 | ASSERT(current == xseq && mode == OCSEQUENCEMODE); |
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| 357 | oc_data_count(conn,datacontainer,&recordcount); |
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| 358 | if(sizep) *sizep = recordcount; |
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| 359 | |
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| 360 | fail: |
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| 361 | oc_data_free(conn,datacontainer); |
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| 362 | nclistfree(path); |
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| 363 | if(ocstat) ncstat = ocerrtoncerr(ocstat); |
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| 364 | return THROW(ncstat); |
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| 365 | } |
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| 366 | |
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| 367 | static int |
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| 368 | fieldindex(CDFnode* parent, CDFnode* child) |
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| 369 | { |
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| 370 | unsigned int i; |
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| 371 | for(i=0;i<nclistlength(parent->subnodes);i++) { |
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| 372 | CDFnode* node = (CDFnode*)nclistget(parent->subnodes,i); |
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| 373 | if(node == child) return i; |
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| 374 | } |
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| 375 | return -1; |
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| 376 | } |
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| 377 | |
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| 378 | NCerror |
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| 379 | showprojection3(NCDAPCOMMON* dapcomm, CDFnode* var) |
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| 380 | { |
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| 381 | int i,rank; |
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| 382 | NCerror ncstat = NC_NOERR; |
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| 383 | NCbytes* projection = ncbytesnew(); |
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| 384 | NClist* path = nclistnew(); |
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| 385 | NC* drno = dapcomm->controller; |
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| 386 | |
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| 387 | /* Collect the set of DDS node name forming the xpath */ |
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| 388 | collectnodepath3(var,path,WITHOUTDATASET); |
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| 389 | for(i=0;i<nclistlength(path);i++) { |
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| 390 | CDFnode* node = (CDFnode*)nclistget(path,i); |
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| 391 | if(i > 0) ncbytescat(projection,"."); |
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| 392 | ncbytescat(projection,node->ocname); |
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| 393 | } |
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| 394 | /* Now, add the dimension info */ |
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| 395 | rank = nclistlength(var->array.dimset0); |
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| 396 | for(i=0;i<rank;i++) { |
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| 397 | CDFnode* dim = (CDFnode*)nclistget(var->array.dimset0,i); |
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| 398 | char tmp[32]; |
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| 399 | ncbytescat(projection,"["); |
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| 400 | snprintf(tmp,sizeof(tmp),"%lu",(unsigned long)dim->dim.declsize); |
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| 401 | ncbytescat(projection,tmp); |
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| 402 | ncbytescat(projection,"]"); |
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| 403 | } |
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| 404 | /* Define the attribute */ |
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| 405 | ncstat = nc_put_att_text(getncid(drno),var->ncid, |
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| 406 | "_projection", |
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| 407 | ncbyteslength(projection), |
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| 408 | ncbytescontents(projection)); |
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| 409 | return ncstat; |
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| 410 | } |
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| 411 | |
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| 412 | /* |
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| 413 | This is more complex than one might think. We want to find |
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| 414 | a path to a variable inside the given node so that we can |
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| 415 | ask for a single instance of that variable to minimize the |
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| 416 | amount of data we retrieve. However, we want to avoid passing |
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| 417 | through any nested sequence. This is possible because of the way |
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| 418 | that sequencecheck() works. |
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| 419 | TODO: some servers will not accept an unconstrained fetch, so |
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| 420 | make sure we always have a constraint. |
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| 421 | */ |
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| 422 | |
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| 423 | static NCerror |
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| 424 | computeseqcountconstraints3(NCDAPCOMMON* dapcomm, CDFnode* seq, NCbytes* seqcountconstraints) |
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| 425 | { |
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| 426 | int i,j; |
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| 427 | NClist* path = NULL; |
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| 428 | CDFnode* var = NULL; |
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| 429 | |
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| 430 | ASSERT(seq->nctype == NC_Sequence); |
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| 431 | computeseqcountconstraints3r(dapcomm,seq,&var); |
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| 432 | |
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| 433 | ASSERT((var != NULL)); |
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| 434 | |
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| 435 | /* Compute var path */ |
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| 436 | path = nclistnew(); |
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| 437 | collectnodepath3(var,path,WITHOUTDATASET); |
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| 438 | |
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| 439 | /* construct the projection path using minimal index values */ |
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| 440 | for(i=0;i<nclistlength(path);i++) { |
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| 441 | CDFnode* node = (CDFnode*)nclistget(path,i); |
---|
| 442 | if(i > 0) ncbytescat(seqcountconstraints,"."); |
---|
| 443 | ncbytescat(seqcountconstraints,node->ocname); |
---|
| 444 | if(node == seq) { |
---|
| 445 | /* Use the limit */ |
---|
| 446 | if(node->sequencelimit > 0) { |
---|
| 447 | char tmp[64]; |
---|
| 448 | snprintf(tmp,sizeof(tmp),"[0:%lu]", |
---|
| 449 | (unsigned long)(node->sequencelimit - 1)); |
---|
| 450 | ncbytescat(seqcountconstraints,tmp); |
---|
| 451 | } |
---|
| 452 | } else if(nclistlength(node->array.dimset0) > 0) { |
---|
| 453 | int ndims = nclistlength(node->array.dimset0); |
---|
| 454 | for(j=0;j<ndims;j++) { |
---|
| 455 | CDFnode* dim = (CDFnode*)nclistget(node->array.dimset0,j); |
---|
| 456 | if(DIMFLAG(dim,CDFDIMSTRING)) { |
---|
| 457 | ASSERT((j == (ndims - 1))); |
---|
| 458 | break; |
---|
| 459 | } |
---|
| 460 | ncbytescat(seqcountconstraints,"[0]"); |
---|
| 461 | } |
---|
| 462 | } |
---|
| 463 | } |
---|
| 464 | /* Finally, add in any selection from the original URL */ |
---|
| 465 | if(dapcomm->oc.url->selection != NULL) |
---|
| 466 | ncbytescat(seqcountconstraints,dapcomm->oc.url->selection); |
---|
| 467 | nclistfree(path); |
---|
| 468 | return NC_NOERR; |
---|
| 469 | } |
---|
| 470 | |
---|
| 471 | |
---|
| 472 | /* Given an existing candidate, see if we prefer newchoice */ |
---|
| 473 | static CDFnode* |
---|
| 474 | prefer(CDFnode* candidate, CDFnode* newchoice) |
---|
| 475 | { |
---|
| 476 | nc_type newtyp; |
---|
| 477 | nc_type cantyp; |
---|
| 478 | int newisstring; |
---|
| 479 | int canisstring; |
---|
| 480 | int newisscalar; |
---|
| 481 | int canisscalar; |
---|
| 482 | |
---|
| 483 | /* always choose !null over null */ |
---|
| 484 | if(newchoice == NULL) |
---|
| 485 | return candidate; |
---|
| 486 | if(candidate == NULL) |
---|
| 487 | return newchoice; |
---|
| 488 | |
---|
| 489 | newtyp = newchoice->etype; |
---|
| 490 | cantyp = candidate->etype; |
---|
| 491 | newisstring = (newtyp == NC_STRING || newtyp == NC_URL); |
---|
| 492 | canisstring = (cantyp == NC_STRING || cantyp == NC_URL); |
---|
| 493 | newisscalar = (nclistlength(newchoice->array.dimset0) == 0); |
---|
| 494 | canisscalar = (nclistlength(candidate->array.dimset0) == 0); |
---|
| 495 | |
---|
| 496 | ASSERT(candidate->nctype == NC_Primitive && newchoice->nctype == NC_Primitive); |
---|
| 497 | |
---|
| 498 | /* choose non-string over string */ |
---|
| 499 | if(canisstring && !newisstring) |
---|
| 500 | return newchoice; |
---|
| 501 | if(!canisstring && newisstring) |
---|
| 502 | return candidate; |
---|
| 503 | |
---|
| 504 | /* choose scalar over array */ |
---|
| 505 | if(canisscalar && !newisscalar) |
---|
| 506 | return candidate; |
---|
| 507 | if(!canisscalar && newisscalar) |
---|
| 508 | return candidate; |
---|
| 509 | |
---|
| 510 | /* otherwise choose existing candidate */ |
---|
| 511 | return candidate; |
---|
| 512 | } |
---|
| 513 | |
---|
| 514 | /* computeseqcountconstraints3 recursive helper function */ |
---|
| 515 | static void |
---|
| 516 | computeseqcountconstraints3r(NCDAPCOMMON* dapcomm, CDFnode* node, CDFnode** candidatep) |
---|
| 517 | { |
---|
| 518 | CDFnode* candidate; |
---|
| 519 | CDFnode* compound; |
---|
| 520 | unsigned int i; |
---|
| 521 | |
---|
| 522 | candidate = NULL; |
---|
| 523 | compound = NULL; |
---|
| 524 | |
---|
| 525 | for(i=0;i<nclistlength(node->subnodes);i++){ |
---|
| 526 | CDFnode* subnode = (CDFnode*)nclistget(node->subnodes,i); |
---|
| 527 | if(subnode->nctype == NC_Structure || subnode->nctype == NC_Grid) |
---|
| 528 | compound = subnode; /* save for later recursion */ |
---|
| 529 | else if(subnode->nctype == NC_Primitive) { |
---|
| 530 | candidate = prefer(candidate,subnode); |
---|
| 531 | } |
---|
| 532 | } |
---|
| 533 | if(candidate == NULL && compound == NULL) { |
---|
| 534 | PANIC("cannot find candidate for seqcountconstraints for a sequence"); |
---|
| 535 | } else if(candidate != NULL && candidatep != NULL) { |
---|
| 536 | *candidatep = candidate; |
---|
| 537 | } else { /* compound != NULL by construction */ |
---|
| 538 | /* recurse on a nested grids or strucures */ |
---|
| 539 | computeseqcountconstraints3r(dapcomm,compound,candidatep); |
---|
| 540 | } |
---|
| 541 | } |
---|
| 542 | |
---|
| 543 | |
---|
| 544 | static unsigned long |
---|
| 545 | cdftotalsize3(NClist* dimensions) |
---|
| 546 | { |
---|
| 547 | unsigned int i; |
---|
| 548 | unsigned long total = 1; |
---|
| 549 | if(dimensions != NULL) { |
---|
| 550 | for(i=0;i<nclistlength(dimensions);i++) { |
---|
| 551 | CDFnode* dim = (CDFnode*)nclistget(dimensions,i); |
---|
| 552 | total *= dim->dim.declsize; |
---|
| 553 | } |
---|
| 554 | } |
---|
| 555 | return total; |
---|
| 556 | } |
---|
| 557 | |
---|
| 558 | /* Estimate variables sizes and then resort the variable list |
---|
| 559 | by that size |
---|
| 560 | */ |
---|
| 561 | void |
---|
| 562 | estimatevarsizes3(NCDAPCOMMON* dapcomm) |
---|
| 563 | { |
---|
| 564 | int ivar; |
---|
| 565 | unsigned int rank; |
---|
| 566 | size_t totalsize = 0; |
---|
| 567 | |
---|
| 568 | for(ivar=0;ivar<nclistlength(dapcomm->cdf.varnodes);ivar++) { |
---|
| 569 | CDFnode* var = (CDFnode*)nclistget(dapcomm->cdf.varnodes,ivar); |
---|
| 570 | NClist* ncdims = var->array.dimset0; |
---|
| 571 | rank = nclistlength(ncdims); |
---|
| 572 | if(rank == 0) { /* use instance size of the type */ |
---|
| 573 | var->estimatedsize = nctypesizeof(var->etype); |
---|
| 574 | #ifdef DEBUG1 |
---|
| 575 | fprintf(stderr,"scalar %s.estimatedsize = %lu\n", |
---|
| 576 | makecdfpathstring3(var,"."),var->estimatedsize); |
---|
| 577 | #endif |
---|
| 578 | } else { |
---|
| 579 | unsigned long size = cdftotalsize3(ncdims); |
---|
| 580 | size *= nctypesizeof(var->etype); |
---|
| 581 | #ifdef DEBUG1 |
---|
| 582 | fprintf(stderr,"array %s(%u).estimatedsize = %lu\n", |
---|
| 583 | makecdfpathstring3(var,"."),rank,size); |
---|
| 584 | #endif |
---|
| 585 | var->estimatedsize = size; |
---|
| 586 | } |
---|
| 587 | totalsize += var->estimatedsize; |
---|
| 588 | } |
---|
| 589 | #ifdef DEBUG1 |
---|
| 590 | fprintf(stderr,"total estimatedsize = %lu\n",totalsize); |
---|
| 591 | #endif |
---|
| 592 | dapcomm->cdf.totalestimatedsize = totalsize; |
---|
| 593 | } |
---|
| 594 | |
---|
| 595 | NCerror |
---|
| 596 | fetchtemplatemetadata3(NCDAPCOMMON* dapcomm) |
---|
| 597 | { |
---|
| 598 | NCerror ncstat = NC_NOERR; |
---|
| 599 | OCerror ocstat = OC_NOERR; |
---|
| 600 | OCobject ocroot = OCNULL; |
---|
| 601 | CDFnode* ddsroot = NULL; |
---|
| 602 | char* ce = NULL; |
---|
| 603 | |
---|
| 604 | /* Temporary hack: we need to get the selection string |
---|
| 605 | from the url |
---|
| 606 | */ |
---|
| 607 | /* Get (almost) unconstrained DDS; In order to handle functions |
---|
| 608 | correctly, those selections must always be included |
---|
| 609 | */ |
---|
| 610 | if(FLAGSET(dapcomm->controls,NCF_UNCONSTRAINABLE)) |
---|
| 611 | ce = NULL; |
---|
| 612 | else |
---|
| 613 | ce = nulldup(dapcomm->oc.url->selection); |
---|
| 614 | |
---|
| 615 | /* Get selection constrained DDS */ |
---|
| 616 | ocstat = dap_fetch(dapcomm,dapcomm->oc.conn,ce,OCDDS,&ocroot); |
---|
| 617 | if(ocstat != OC_NOERR) { |
---|
| 618 | /* Special Hack. If the protocol is file, then see if |
---|
| 619 | we can get the dds from the .dods file |
---|
| 620 | */ |
---|
| 621 | if(strcmp(dapcomm->oc.url->protocol,"file") != 0) { |
---|
| 622 | THROWCHK(ocstat); goto done; |
---|
| 623 | } |
---|
| 624 | /* Fetch the data dds */ |
---|
| 625 | ocstat = dap_fetch(dapcomm,dapcomm->oc.conn,ce,OCDATADDS,&ocroot); |
---|
| 626 | if(ocstat != OC_NOERR) { |
---|
| 627 | THROWCHK(ocstat); goto done; |
---|
| 628 | } |
---|
| 629 | /* Note what we did */ |
---|
| 630 | nclog(NCLOGWARN,"Cannot locate .dds file, using .dods file"); |
---|
| 631 | } |
---|
| 632 | |
---|
| 633 | /* Get selection constrained DAS */ |
---|
| 634 | ocstat = dap_fetch(dapcomm,dapcomm->oc.conn,ce,OCDAS,&dapcomm->oc.ocdasroot); |
---|
| 635 | if(ocstat != OC_NOERR) { |
---|
| 636 | /* Ignore but complain */ |
---|
| 637 | nclog(NCLOGWARN,"Could not read DAS; ignored"); |
---|
| 638 | dapcomm->oc.ocdasroot = OCNULL; |
---|
| 639 | ocstat = OC_NOERR; |
---|
| 640 | } |
---|
| 641 | |
---|
| 642 | /* Construct our parallel dds tree */ |
---|
| 643 | ncstat = buildcdftree34(dapcomm,ocroot,OCDDS,&ddsroot); |
---|
| 644 | if(ncstat != NC_NOERR) {THROWCHK(ncstat); goto done;} |
---|
| 645 | dapcomm->cdf.fullddsroot = ddsroot; |
---|
| 646 | |
---|
| 647 | done: |
---|
| 648 | nullfree(ce); |
---|
| 649 | if(ocstat != OC_NOERR) ncstat = ocerrtoncerr(ocstat); |
---|
| 650 | return ncstat; |
---|
| 651 | } |
---|
| 652 | |
---|
| 653 | NCerror |
---|
| 654 | fetchconstrainedmetadata3(NCDAPCOMMON* dapcomm) |
---|
| 655 | { |
---|
| 656 | NCerror ncstat = NC_NOERR; |
---|
| 657 | OCerror ocstat = OC_NOERR; |
---|
| 658 | OCobject ocroot; |
---|
| 659 | CDFnode* ddsroot; /* constrained */ |
---|
| 660 | char* ce = NULL; |
---|
| 661 | |
---|
| 662 | if(FLAGSET(dapcomm->controls,NCF_UNCONSTRAINABLE)) |
---|
| 663 | ce = NULL; |
---|
| 664 | else |
---|
| 665 | ce = buildconstraintstring3(dapcomm->oc.dapconstraint); |
---|
| 666 | |
---|
| 667 | { |
---|
| 668 | ocstat = dap_fetch(dapcomm,dapcomm->oc.conn,ce,OCDDS,&ocroot); |
---|
| 669 | if(ocstat != OC_NOERR) {THROWCHK(ocstat); goto fail;} |
---|
| 670 | |
---|
| 671 | /* Construct our parallel dds tree; including attributes*/ |
---|
| 672 | ncstat = buildcdftree34(dapcomm,ocroot,OCDDS,&ddsroot); |
---|
| 673 | if(ncstat) goto fail; |
---|
| 674 | |
---|
| 675 | dapcomm->cdf.ddsroot = ddsroot; |
---|
| 676 | |
---|
| 677 | if(!FLAGSET(dapcomm->controls,NCF_UNCONSTRAINABLE)) { |
---|
| 678 | /* fix DAP server problem by adding back any missing grid structure nodes */ |
---|
| 679 | ncstat = regrid3(ddsroot,dapcomm->cdf.fullddsroot,dapcomm->oc.dapconstraint->projections); |
---|
| 680 | if(ncstat) goto fail; |
---|
| 681 | } |
---|
| 682 | |
---|
| 683 | #ifdef DEBUG |
---|
| 684 | fprintf(stderr,"constrained:\n%s",dumptree(ddsroot)); |
---|
| 685 | #endif |
---|
| 686 | |
---|
| 687 | /* Combine DDS and DAS */ |
---|
| 688 | if(dapcomm->oc.ocdasroot != NULL) { |
---|
| 689 | ncstat = dapmerge3(dapcomm,ddsroot,dapcomm->oc.ocdasroot); |
---|
| 690 | if(ncstat != NC_NOERR) {THROWCHK(ncstat); goto fail;} |
---|
| 691 | } |
---|
| 692 | |
---|
| 693 | /* map the constrained DDS to the unconstrained DDS */ |
---|
| 694 | ncstat = mapnodes3(ddsroot,dapcomm->cdf.fullddsroot); |
---|
| 695 | if(ncstat) goto fail; |
---|
| 696 | |
---|
| 697 | } |
---|
| 698 | |
---|
| 699 | fail: |
---|
| 700 | nullfree(ce); |
---|
| 701 | if(ocstat != OC_NOERR) ncstat = ocerrtoncerr(ocstat); |
---|
| 702 | return ncstat; |
---|
| 703 | } |
---|
| 704 | |
---|
| 705 | /* Suppress variables not in usable sequences*/ |
---|
| 706 | NCerror |
---|
| 707 | suppressunusablevars3(NCDAPCOMMON* dapcomm) |
---|
| 708 | { |
---|
| 709 | int i,j; |
---|
| 710 | int found = 1; |
---|
| 711 | NClist* path = nclistnew(); |
---|
| 712 | |
---|
| 713 | while(found) { |
---|
| 714 | found = 0; |
---|
| 715 | /* Walk backwards to aid removal semantics */ |
---|
| 716 | for(i=nclistlength(dapcomm->cdf.varnodes)-1;i>=0;i--) { |
---|
| 717 | CDFnode* var = (CDFnode*)nclistget(dapcomm->cdf.varnodes,i); |
---|
| 718 | /* See if this var is under an unusable sequence */ |
---|
| 719 | nclistclear(path); |
---|
| 720 | collectnodepath3(var,path,WITHOUTDATASET); |
---|
| 721 | for(j=0;j<nclistlength(path);j++) { |
---|
| 722 | CDFnode* node = (CDFnode*)nclistget(path,j); |
---|
| 723 | if(node->nctype == NC_Sequence |
---|
| 724 | && !node->usesequence) { |
---|
| 725 | #ifdef DEBUG |
---|
| 726 | fprintf(stderr,"suppressing var in unusable sequence: %s.%s\n",node->ncfullname,var->ncbasename); |
---|
| 727 | #endif |
---|
| 728 | found = 1; |
---|
| 729 | break; |
---|
| 730 | } |
---|
| 731 | } |
---|
| 732 | if(found) break; |
---|
| 733 | } |
---|
| 734 | if(found) nclistremove(dapcomm->cdf.varnodes,i); |
---|
| 735 | } |
---|
| 736 | nclistfree(path); |
---|
| 737 | return NC_NOERR; |
---|
| 738 | } |
---|
| 739 | |
---|
| 740 | |
---|
| 741 | /* |
---|
| 742 | For variables which have a zero size dimension, |
---|
| 743 | make them invisible. |
---|
| 744 | */ |
---|
| 745 | NCerror |
---|
| 746 | fixzerodims3(NCDAPCOMMON* dapcomm) |
---|
| 747 | { |
---|
| 748 | int i,j; |
---|
| 749 | for(i=0;i<nclistlength(dapcomm->cdf.varnodes);i++) { |
---|
| 750 | CDFnode* var = (CDFnode*)nclistget(dapcomm->cdf.varnodes,i); |
---|
| 751 | NClist* ncdims = var->array.dimsetplus; |
---|
| 752 | if(nclistlength(ncdims) == 0) continue; |
---|
| 753 | for(j=0;j<nclistlength(ncdims);j++) { |
---|
| 754 | CDFnode* dim = (CDFnode*)nclistget(ncdims,j); |
---|
| 755 | if(dim->dim.declsize == 0) { |
---|
| 756 | /* make node invisible */ |
---|
| 757 | var->visible = 0; |
---|
| 758 | var->zerodim = 1; |
---|
| 759 | } |
---|
| 760 | } |
---|
| 761 | } |
---|
| 762 | return NC_NOERR; |
---|
| 763 | } |
---|
| 764 | |
---|
| 765 | void |
---|
| 766 | applyclientparamcontrols3(NCDAPCOMMON* dapcomm) |
---|
| 767 | { |
---|
| 768 | /* clear the flags */ |
---|
| 769 | CLRFLAG(dapcomm->controls,NCF_CACHE); |
---|
| 770 | CLRFLAG(dapcomm->controls,NCF_PREFETCH); |
---|
| 771 | CLRFLAG(dapcomm->controls,NCF_SHOWFETCH); |
---|
| 772 | CLRFLAG(dapcomm->controls,NCF_NC3); |
---|
| 773 | CLRFLAG(dapcomm->controls,NCF_NCDAP); |
---|
| 774 | |
---|
| 775 | /* Turn on any default on flags */ |
---|
| 776 | SETFLAG(dapcomm->controls,DFALT_ON_FLAGS); |
---|
| 777 | SETFLAG(dapcomm->controls,(NCF_NC3|NCF_NCDAP)); |
---|
| 778 | |
---|
| 779 | /* enable/disable caching */ |
---|
| 780 | if(paramcheck34(dapcomm,"cache",NULL)) |
---|
| 781 | SETFLAG(dapcomm->controls,NCF_CACHE); |
---|
| 782 | else if(paramcheck34(dapcomm,"nocache",NULL)) |
---|
| 783 | CLRFLAG(dapcomm->controls,NCF_CACHE); |
---|
| 784 | |
---|
| 785 | /* enable/disable cache prefetch */ |
---|
| 786 | if(paramcheck34(dapcomm,"prefetch",NULL)) |
---|
| 787 | SETFLAG(dapcomm->controls,NCF_PREFETCH); |
---|
| 788 | else if(paramcheck34(dapcomm,"noprefetch",NULL)) |
---|
| 789 | CLRFLAG(dapcomm->controls,NCF_PREFETCH); |
---|
| 790 | |
---|
| 791 | |
---|
| 792 | if(FLAGSET(dapcomm->controls,NCF_UNCONSTRAINABLE)) |
---|
| 793 | SETFLAG(dapcomm->controls,NCF_CACHE); |
---|
| 794 | |
---|
| 795 | if(paramcheck34(dapcomm,"show","fetch")) |
---|
| 796 | SETFLAG(dapcomm->controls,NCF_SHOWFETCH); |
---|
| 797 | |
---|
| 798 | nclog(NCLOGNOTE,"Caching=%d",FLAGSET(dapcomm->controls,NCF_CACHE)); |
---|
| 799 | |
---|
| 800 | } |
---|