/* Return value of param or NULL if not found */
const char*
dapparamvalue(NCDAPCOMMON* nccomm, const char* key)
{
const char* value;
if(nccomm == NULL || key == NULL) return 0;
value=ncurilookup(nccomm->oc.url,key);
return value;
}
/* Search for substring in value of param. If substring == NULL; then just
check if param is defined.
*/
int
dapparamcheck(NCDAPCOMMON* nccomm, const char* key, const char* subkey)
{
const char* value;
char* p;
if(nccomm == NULL || key == NULL) return 0;
if((value=ncurilookup(nccomm->oc.url,key)) == NULL)
return 0;
if(subkey == NULL) return 1;
p = strstr(value,subkey);
if(p == NULL) return 0;
p += strlen(subkey);
if(*p != '\0' && strchr(checkseps,*p) == NULL) return 0;
return 1;
}
int
NC_urlmodel(const char* path)
{
int model = 0;
NCURI* tmpurl = NULL;
struct NCPROTOCOLLIST* protolist;
if(!ncuriparse(path,&tmpurl)) goto done;
/* Look at any prefixed parameters */
if(ncurilookup(tmpurl,"netcdf4",NULL)
|| ncurilookup(tmpurl,"netcdf-4",NULL)) {
model = (NC_DISPATCH_NC4|NC_DISPATCH_NCD);
} else if(ncurilookup(tmpurl,"netcdf3",NULL)
|| ncurilookup(tmpurl,"netcdf-3",NULL)) {
model = (NC_DISPATCH_NC3|NC_DISPATCH_NCD);
} else if(ncurilookup(tmpurl,"cdmremote",NULL)
|| ncurilookup(tmpurl,"cdmr",NULL)) {
model = (NC_DISPATCH_NCR|NC_DISPATCH_NC4);
}
if(model == 0) {
/* Now look at the protocol */
for(protolist=ncprotolist;protolist->protocol;protolist++) {
if(strcmp(tmpurl->protocol,protolist->protocol) == 0) {
model |= protolist->modelflags;
if(protolist->substitute) {
if(tmpurl->protocol) free(tmpurl->protocol);
tmpurl->protocol = strdup(protolist->substitute);
}
break;
}
}
}
/* Force NC_DISPATCH_NC3 if necessary */
if((model & NC_DISPATCH_NC4) == 0)
model |= (NC_DISPATCH_NC3 | NC_DISPATCH_NCD);
done:
ncurifree(tmpurl);
return model;
}
int
NC_urlmodel(const char* path, int mode, char** newurl)
{
int found, model = 0;
struct NCPROTOCOLLIST* protolist;
NCURI* url = NULL;
char* p;
if(path == NULL) return 0;
/* find leading non-blank */
for(p=(char*)path;*p;p++) {if(*p != ' ') break;}
/* Do some initial checking to see if this looks like a file path */
if(*p == '/') return 0; /* probably an absolute file path */
/* Parse the url */
if(ncuriparse(path,&url) != NCU_OK)
goto fail; /* Not parseable as url */
/* Look up the protocol */
for(found=0,protolist=ncprotolist;protolist->protocol;protolist++) {
if(strcmp(url->protocol,protolist->protocol) == 0) {
found = 1;
break;
}
}
if(found) {
model = protolist->model;
/* Substitute the protocol in any case */
if(protolist->substitute) ncurisetprotocol(url,protolist->substitute);
} else
goto fail; /* Again, does not look like a url */
if(model != NC_FORMATX_DAP2 && model != NC_FORMATX_DAP4) {
/* Look for and of the following params:
"dap2", "protocol=dap2", "dap4", "protocol=dap4" */
const char* proto = NULL;
const char* match = NULL;
if((proto=ncurilookup(url,"protocol")) == NULL) proto = NULL;
if(proto == NULL) proto = "";
if((match=ncurilookup(url,"dap2")) != NULL || strcmp(proto,"dap2") == 0)
model = NC_FORMATX_DAP2;
else if((match=ncurilookup(url,"dap4")) != NULL || strcmp(proto,"dap4") == 0)
model = NC_FORMATX_DAP4;
else
model = 0; /* Still don't know */
}
if(model == 0) {/* Last resort: use the mode */
/* If mode specifies netcdf-4, then this is assumed to be dap4 */
if(mode & NC_NETCDF4)
model = NC_FORMATX_DAP4;
else
model = NC_FORMATX_DAP2; /* Default */
}
if(newurl)
*newurl = ncuribuild(url,NULL,NULL,NCURIALL);
if(url) ncurifree(url);
return model;
fail:
if(url) ncurifree(url);
return 0;
}