FILE *file;
} stringbuffer_t;
int addToBuffer(stringbuffer_t *,char*,size_t);
+void escapeJSON(char*,size_t);
int rrd_graph_xport(image_desc_t *);
-int rrd_xport_format_xml(stringbuffer_t *,image_desc_t*,time_t, time_t, unsigned long, unsigned long, char**, rrd_value_t*);
-int rrd_xport_format_json(stringbuffer_t *,image_desc_t*,time_t, time_t, unsigned long, unsigned long, char**, rrd_value_t*);
+int rrd_xport_format_xmljson(int,stringbuffer_t *,image_desc_t*,time_t, time_t, unsigned long, unsigned long, char**, rrd_value_t*);
int rrd_xport_format_sv(char,stringbuffer_t *,image_desc_t*,time_t, time_t, unsigned long, unsigned long, char**, rrd_value_t*);
+int rrd_xport_format_addprints(int,stringbuffer_t *,image_desc_t *);
int rrd_graph_xport(image_desc_t *im) {
/* prepare the data for processing */
/* fill in some data */
rrd_infoval_t info;
- info.u_cnt = im->start;
+ info.u_cnt = start;
grinfo_push(im, sprintf_alloc("graph_start"), RD_I_CNT, info);
- info.u_cnt = im->end;
+ info.u_cnt = end;
grinfo_push(im, sprintf_alloc("graph_end"), RD_I_CNT, info);
- info.u_cnt = im->step;
+ info.u_cnt = step;
grinfo_push(im, sprintf_alloc("graph_step"), RD_I_CNT, info);
/* set locale */
int r=0;
switch(im->imgformat) {
case IF_XML:
- r=rrd_xport_format_xml(&buffer,im, start, end, step, col_cnt, legend_v, data);
+ r=rrd_xport_format_xmljson(2,&buffer,im, start, end, step, col_cnt, legend_v, data);
+ break;
+ case IF_XMLENUM:
+ r=rrd_xport_format_xmljson(6,&buffer,im, start, end, step, col_cnt, legend_v, data);
break;
case IF_JSON:
- r=rrd_xport_format_json(&buffer,im, start, end, step, col_cnt, legend_v, data);
+ r=rrd_xport_format_xmljson(1,&buffer,im, start, end, step, col_cnt, legend_v, data);
+ break;
+ case IF_JSONTIME:
+ r=rrd_xport_format_xmljson(3,&buffer,im, start, end, step, col_cnt, legend_v, data);
break;
case IF_CSV:
r=rrd_xport_format_sv(',',&buffer,im, start, end, step, col_cnt, legend_v, data);
free(data);
/* free the bufer */
if (buffer.data) {free(buffer.data);}
+ /* close the file */
+ if (buffer.file) {fclose(buffer.file);}
/* and return with error */
return r;
}
int rrd_xport_format_sv(char sep, stringbuffer_t *buffer,image_desc_t *im,time_t start, time_t end, unsigned long step, unsigned long col_cnt, char **legend_v, rrd_value_t* data) {
/* define the time format */
char* timefmt=NULL;
- /* unfortunatley we have to do it this way,
- as when no --x-graph argument is given,
- then the xlab_user is not in a clean state (e.g. zero-filled) */
if (im->xlab_user.minsec!=-1) { timefmt=im->xlab_user.stst; }
/* row count */
*(1+row_cnt) /* number of columns + 1 (for header) */
;
+ char buf[256];
+
/* now start writing the header*/
if (addToBuffer(buffer,"\"time\"",6)) { return 1; }
- char buf[256];
for(unsigned long i=0;i<col_cnt;i++) {
/* strip leading spaces */
char *t=legend_v[i]; while (isspace(*t)) { t++;}
return 0;
}
-int rrd_xport_format_xml(stringbuffer_t *buffer,image_desc_t *im,time_t start, time_t end, unsigned long step, unsigned long col_cnt, char **legend_v, rrd_value_t* data) {
- addToBuffer(buffer,"xml not implemented",0);
+int rrd_xport_format_xmljson(int flags,stringbuffer_t *buffer,image_desc_t *im,time_t start, time_t end, unsigned long step, unsigned long col_cnt, char **legend_v, rrd_value_t* data) {
+
+ /* define some other stuff based on flags */
+ int json=0;
+ if (flags &1) { json=1; }
+ int showtime=0;
+ if (flags &2) { showtime=1;}
+ int enumds=0;
+ if (flags &4) { enumds=1;}
+
+ /* define the time format */
+ char* timefmt=NULL;
+ /* unfortunatley we have to do it this way,
+ as when no --x-graph argument is given,
+ then the xlab_user is not in a clean state (e.g. zero-filled) */
+ if (im->xlab_user.minsec!=-1) { timefmt=im->xlab_user.stst; }
+
+ /* row count */
+ unsigned long row_cnt=(end-start)/step;
+
+ /* estimate buffer size (to avoid multiple allocations) */
+ /* better estimates are needed here */
+ buffer->allocated=
+ 1024 /* bytes of overhead /header/footer */
+ +(12+19*col_cnt) /* 12 bytes overhead/line plus 19 bytes per column*/
+ *(1+row_cnt) /* number of columns + 1 (for header) */
+ ;
+ char buf[256];
+ char dbuf[1024];
+
+ rrd_value_t *ptr = data;
+ if (json == 0){
+ snprintf(buf,sizeof(buf),
+ "<?xml version=\"1.0\" encoding=\"%s\"?>\n\n<%s>\n <%s>\n",
+ XML_ENCODING,ROOT_TAG,META_TAG);
+ addToBuffer(buffer,buf,0);
+ }
+ else {
+ addToBuffer(buffer,"{ \"about\": \"RRDtool graph JSON output\",\n \"meta\": {\n",0);
+ }
+
+ /* calculate start time */
+ if (timefmt) {
+ struct tm loc;
+ time_t ti=start+step;
+ localtime_r(&ti,&loc);
+ strftime(dbuf,sizeof(dbuf),timefmt,&loc);
+ if (json) {
+ snprintf(buf,sizeof(buf)," \"%s\": \"%s\",\n",META_START_TAG,dbuf);
+ } else {
+ snprintf(buf,sizeof(buf)," <%s>%s</%s>\n",META_START_TAG,dbuf,META_START_TAG);
+ }
+ } else {
+ if (json) {
+ snprintf(buf,sizeof(buf)," \"%s\": %lld,\n",META_START_TAG,(long long int)start+step);
+ } else {
+ snprintf(buf,sizeof(buf)," <%s>%lld</%s>\n",META_START_TAG,(long long int)start+step,META_START_TAG);
+ }
+ }
+ addToBuffer(buffer,buf,0);
+
+ /* calculate end time */
+ if (timefmt) {
+ struct tm loc;
+ time_t ti=end;
+ localtime_r(&ti,&loc);
+ strftime(dbuf,sizeof(dbuf),timefmt,&loc);
+ if (json) {
+ snprintf(buf,sizeof(buf)," \"%s\": \"%s\",\n",META_END_TAG,dbuf);
+ } else {
+ snprintf(buf,sizeof(buf)," <%s>%s</%s>\n",META_END_TAG,dbuf,META_END_TAG);
+ }
+ } else {
+ if (json) {
+ snprintf(buf,sizeof(buf)," \"%s\": %lld,\n",META_END_TAG,(long long int)end);
+ } else {
+ snprintf(buf,sizeof(buf)," <%s>%lld</%s>\n",META_END_TAG,(long long int)end,META_END_TAG);
+ }
+ }
+ addToBuffer(buffer,buf,0);
+ /* print other info */
+ if (json) {
+ snprintf(buf,sizeof(buf)," \"%s\": %lld,\n",META_STEP_TAG,(long long int)step);
+ addToBuffer(buffer,buf,0);
+ } else {
+ snprintf(buf,sizeof(buf)," <%s>%lld</%s>\n",META_STEP_TAG,(long long int)step,META_STEP_TAG);
+ addToBuffer(buffer,buf,0);
+ snprintf(buf,sizeof(buf)," <%s>%lu</%s>\n",META_ROWS_TAG,row_cnt,META_ROWS_TAG);
+ addToBuffer(buffer,buf,0);
+ snprintf(buf,sizeof(buf)," <%s>%lu</%s>\n",META_COLS_TAG,col_cnt,META_COLS_TAG);
+ addToBuffer(buffer,buf,0);
+ }
+
+ /* start legend */
+ if (json){
+ snprintf(buf,sizeof(buf)," \"%s\": [\n", LEGEND_TAG);
+ }
+ else {
+ snprintf(buf,sizeof(buf)," <%s>\n", LEGEND_TAG);
+ }
+ addToBuffer(buffer,buf,0);
+ /* add legend entries */
+ for (unsigned long j = 0; j < col_cnt; j++) {
+ char *entry = legend_v[j];
+ /* I do not know why the legend is "spaced", but let us skip it */
+ while(isspace(*entry)){entry++;}
+ /* now output it */
+ if (json){
+ snprintf(buf,sizeof(buf)," \"%s\"", entry);
+ addToBuffer(buffer,buf,0);
+ if (j < col_cnt -1){
+ addToBuffer(buffer,",",1);
+ }
+ addToBuffer(buffer,"\n",1);
+ }
+ else {
+ snprintf(buf,sizeof(buf)," <%s>%s</%s>\n", LEGEND_ENTRY_TAG, entry,LEGEND_ENTRY_TAG);
+ addToBuffer(buffer,buf,0);
+ }
+ }
+ /* end legend */
+ if (json){
+ snprintf(buf,sizeof(buf)," ],\n");
+ }
+ else {
+ snprintf(buf,sizeof(buf)," </%s>\n", LEGEND_TAG);
+ }
+ addToBuffer(buffer,buf,0);
+
+ /* add graphs and prints */
+ if (rrd_xport_format_addprints(json,buffer,im)) {return -1;}
+
+ /* if we have got a trailing , then kill it */
+ if (buffer->data[buffer->len-2]==',') {
+ buffer->data[buffer->len-2]=buffer->data[buffer->len-1];
+ buffer->len--;
+ }
+
+ /* end meta */
+ if (json){
+ snprintf(buf,sizeof(buf)," },\n");
+ } else {
+ snprintf(buf,sizeof(buf)," </%s>\n", META_TAG);
+ }
+ addToBuffer(buffer,buf,0);
+
+
+ /* start data */
+ if (json){
+ snprintf(buf,sizeof(buf)," \"%s\": [\n",DATA_TAG);
+ } else {
+ snprintf(buf,sizeof(buf)," <%s>\n", DATA_TAG);
+ }
+ addToBuffer(buffer,buf,0);
+ /* iterate over data */
+ for (time_t ti = start + step; ti <= end; ti += step) {
+ if (timefmt) {
+ struct tm loc;
+ localtime_r(&ti,&loc);
+ strftime(dbuf,sizeof(dbuf),timefmt,&loc);
+ } else {
+ snprintf(dbuf,sizeof(dbuf),"%lld",(long long int)ti);
+ }
+ if (json){
+ addToBuffer(buffer," [ ",0);
+ if(showtime){
+ addToBuffer(buffer,"\"",1);
+ addToBuffer(buffer,dbuf,0);
+ addToBuffer(buffer,"\",",2);
+ }
+ }
+ else {
+ if (showtime) {
+ snprintf(buf,sizeof(buf),
+ " <%s><%s>%s</%s>", DATA_ROW_TAG,COL_TIME_TAG, dbuf, COL_TIME_TAG);
+ } else {
+ snprintf(buf,sizeof(buf),
+ " <%s>", DATA_ROW_TAG);
+ }
+ addToBuffer(buffer,buf,0);
+ }
+ for (unsigned long j = 0; j < col_cnt; j++) {
+ rrd_value_t newval = DNAN;
+ newval = *ptr;
+ if (json){
+ if (isnan(newval)){
+ addToBuffer(buffer,"null",0);
+ } else {
+ snprintf(buf,sizeof(buf),"%0.10e",newval);
+ addToBuffer(buffer,buf,0);
+ }
+ if (j < col_cnt -1){
+ addToBuffer(buffer,", ",0);
+ }
+ }
+ else {
+ if (isnan(newval)) {
+ if (enumds) {
+ snprintf(buf,sizeof(buf),"<%s%lu>NaN</%s%lu>", COL_DATA_TAG,j,COL_DATA_TAG,j);
+ } else {
+ snprintf(buf,sizeof(buf),"<%s>NaN</%s>", COL_DATA_TAG,COL_DATA_TAG);
+ }
+ } else {
+ if (enumds) {
+ snprintf(buf,sizeof(buf),"<%s%lu>%0.10e</%s%lu>", COL_DATA_TAG,j,newval,COL_DATA_TAG,j);
+ } else {
+ snprintf(buf,sizeof(buf),"<%s>%0.10e</%s>", COL_DATA_TAG,newval,COL_DATA_TAG);
+ }
+ }
+ addToBuffer(buffer,buf,0);
+ }
+ ptr++;
+ }
+ if (json){
+ addToBuffer(buffer,(ti < end ? " ],\n" : " ]\n"),0);
+ }
+ else {
+ snprintf(buf,sizeof(buf),"</%s>\n", DATA_ROW_TAG);
+ addToBuffer(buffer,buf,0);
+ }
+ }
+ /* end data */
+ if (json){
+ addToBuffer(buffer," ]\n",0);
+ }
+ else {
+ snprintf(buf,sizeof(buf)," </%s>\n",DATA_TAG);
+ addToBuffer(buffer,buf,0);
+ }
+
+ /* end all */
+ if (json){
+ addToBuffer(buffer,"}\n",0);
+ } else {
+ snprintf(buf,sizeof(buf),"</%s>\n", ROOT_TAG);
+ addToBuffer(buffer,buf,0);
+ }
return 0;
}
-int rrd_xport_format_json(stringbuffer_t *buffer,image_desc_t *im,time_t start, time_t end, unsigned long step, unsigned long col_cnt, char **legend_v, rrd_value_t* data) {
- addToBuffer(buffer,"JSON not implemented",0);
- return 0;
+void escapeJSON(char* txt,size_t len) {
+ char *tmp=(char*)malloc(len+2);
+ size_t l=strlen(txt);
+ size_t pos=0;
+ /* now iterate over the chars */
+ for(size_t i=0;(i<l)&&(pos<len);i++,pos++) {
+ switch (txt[i]) {
+ case '"':
+ case '\\':
+ tmp[pos]='\\';pos++;
+ tmp[pos]=txt[i];
+ break;
+ default:
+ tmp[pos]=txt[i];
+ break;
+ }
+ }
+ /* 0 terminate it */
+ tmp[pos]=0;
+ /* and copy back over txt */
+ strncpy(txt,tmp,len);
+ /* and release tmp */
+ free(tmp);
}
+int rrd_xport_format_addprints(int flags,stringbuffer_t *buffer,image_desc_t *im) {
+ /* initialize buffer */
+ stringbuffer_t prints={1024,0,NULL,NULL};
+ stringbuffer_t rules={1024,0,NULL,NULL};
+ stringbuffer_t gprints={4096,0,NULL,NULL};
+ char buf[256];
+ char dbuf[1024];
+ char* val;
+ char* timefmt=NULL;
+ if (im->xlab_user.minsec!=-1) { timefmt=im->xlab_user.stst; }
+
+ /* define some other stuff based on flags */
+ int json=0;
+ if (flags &1) { json=1; }
+ int showtime=0;
+ if (flags &2) { showtime=1;}
+ int enumds=0;
+ if (flags &4) { enumds=1;}
+
+ /* define some values */
+ time_t now = time(NULL);
+ struct tm tmvdef;
+ localtime_r(&now, &tmvdef);
+ double printval=DNAN;
+
+ /* iterate over all fields and start the work writing to the correct buffers */
+ for (long i = 0; i < im->gdes_c; i++) {
+ long vidx = im->gdes[i].vidx;
+ char* entry;
+ switch (im->gdes[i].gf) {
+ case GF_PRINT:
+ case GF_GPRINT:
+ /* PRINT and GPRINT can now print VDEF generated values.
+ * There's no need to do any calculations on them as these
+ * calculations were already made.
+ * we do not support the depreciated version here
+ */
+ printval=DNAN;
+ /* decide to which buffer we print to*/
+ stringbuffer_t *usebuffer=&gprints;
+ char* usetag="gprint";
+ if (im->gdes[i].gf==GF_PRINT) {
+ usebuffer=&prints;
+ usetag="print";
+ }
+ /* get the value */
+ if (im->gdes[vidx].gf == GF_VDEF) { /* simply use vals */
+ printval = im->gdes[vidx].vf.val;
+ localtime_r(&im->gdes[vidx].vf.when, &tmvdef);
+ } else {
+ int max_ii = ((im->gdes[vidx].end - im->gdes[vidx].start)
+ / im->gdes[vidx].step * im->gdes[vidx].ds_cnt);
+ printval = DNAN;
+ long validsteps = 0;
+ for (long ii = im->gdes[vidx].ds;
+ ii < max_ii; ii += im->gdes[vidx].ds_cnt) {
+ if (!finite(im->gdes[vidx].data[ii]))
+ continue;
+ if (isnan(printval)) {
+ printval = im->gdes[vidx].data[ii];
+ validsteps++;
+ continue;
+ }
+
+ switch (im->gdes[i].cf) {
+ case CF_HWPREDICT:
+ case CF_MHWPREDICT:
+ case CF_DEVPREDICT:
+ case CF_DEVSEASONAL:
+ case CF_SEASONAL:
+ case CF_AVERAGE:
+ validsteps++;
+ printval += im->gdes[vidx].data[ii];
+ break;
+ case CF_MINIMUM:
+ printval = min(printval, im->gdes[vidx].data[ii]);
+ break;
+ case CF_FAILURES:
+ case CF_MAXIMUM:
+ printval = max(printval, im->gdes[vidx].data[ii]);
+ break;
+ case CF_LAST:
+ printval = im->gdes[vidx].data[ii];
+ }
+ }
+ if (im->gdes[i].cf == CF_AVERAGE || im->gdes[i].cf > CF_LAST) {
+ if (validsteps > 1) {
+ printval = (printval / validsteps);
+ }
+ }
+ }
+ /* we handle PRINT and GPRINT the same - format now*/
+ if (im->gdes[i].strftm) {
+ if (im->gdes[vidx].vf.never == 1) {
+ time_clean(buf, im->gdes[i].format);
+ } else {
+ strftime(dbuf,sizeof(dbuf), im->gdes[i].format, &tmvdef);
+ }
+ } else if (bad_format(im->gdes[i].format)) {
+ rrd_set_error
+ ("bad format for PRINT in \"%s'", im->gdes[i].format);
+ return -1;
+ } else {
+ snprintf(dbuf,sizeof(dbuf), im->gdes[i].format, printval,"");
+ }
+ /* print */
+ if (json) {
+ escapeJSON(dbuf,sizeof(dbuf));
+ snprintf(buf,sizeof(buf),",\n { \"%s\": \"%s\" }",usetag,dbuf);
+ } else {
+ snprintf(buf,sizeof(buf)," <%s>%s</%s>\n",usetag,dbuf,usetag);
+ }
+ addToBuffer(usebuffer,buf,0);
+ break;
+ case GF_COMMENT:
+ if (json) {
+ strncpy(dbuf,im->gdes[i].legend,sizeof(dbuf));
+ escapeJSON(dbuf,sizeof(dbuf));
+ snprintf(buf,sizeof(buf),",\n { \"comment\": \"%s\" }",dbuf);
+ } else {
+ snprintf(buf,sizeof(buf)," <comment>%s</comment>\n",im->gdes[i].legend);
+ }
+ addToBuffer(&gprints,buf,0);
+ break;
+ case GF_LINE:
+ entry = im->gdes[i].legend;
+ /* I do not know why the legend is "spaced", but let us skip it */
+ while(isspace(*entry)){entry++;}
+ if (json) {
+ snprintf(buf,sizeof(buf),",\n { \"line\": \"%s\" }",entry);
+ } else {
+ snprintf(buf,sizeof(buf)," <line>%s</line>\n",entry);
+ }
+ addToBuffer(&gprints,buf,0);
+ break;
+ case GF_AREA:
+ if (json) {
+ snprintf(buf,sizeof(buf),",\n { \"area\": \"%s\" }",im->gdes[i].legend);
+ } else {
+ snprintf(buf,sizeof(buf)," <area>%s</area>\n",im->gdes[i].legend);
+ }
+ addToBuffer(&gprints,buf,0);
+ break;
+ case GF_STACK:
+ if (json) {
+ snprintf(buf,sizeof(buf),",\n { \"stack\": \"%s\" }",im->gdes[i].legend);
+ } else {
+ snprintf(buf,sizeof(buf)," <stack>%s</stack>\n",im->gdes[i].legend);
+ }
+ addToBuffer(&gprints,buf,0);
+ break;
+ case GF_TEXTALIGN:
+ val="";
+ switch (im->gdes[i].txtalign) {
+ case TXA_LEFT: val="left"; break;
+ case TXA_RIGHT: val="right"; break;
+ case TXA_CENTER: val="center"; break;
+ case TXA_JUSTIFIED: val="justified"; break;
+ }
+ if (json) {
+ snprintf(buf,sizeof(buf),",\n { \"align\": \"%s\" }",val);
+ } else {
+ snprintf(buf,sizeof(buf)," <align>%s</align>\n",val);
+ }
+ addToBuffer(&gprints,buf,0);
+ break;
+ case GF_HRULE:
+ /* This does not work as expected - Tobi please help!!! */
+ snprintf(dbuf,sizeof(dbuf),"%0.10e",im->gdes[i].vf.val);
+ /* and output it */
+ if (json) {
+ snprintf(buf,sizeof(buf),",\n { \"hrule\": \"%s\" }",dbuf);
+ } else {
+ snprintf(buf,sizeof(buf)," <hrule>%s</hrule>\n",dbuf);
+ }
+ addToBuffer(&rules,buf,0);
+ break;
+ case GF_VRULE:
+ if (timefmt) {
+ struct tm loc;
+ localtime_r(&im->gdes[i].xrule,&loc);
+ strftime(dbuf,254,timefmt,&loc);
+ } else {
+ snprintf(dbuf,254,"%lld",(long long int)im->gdes[i].vf.when);
+ }
+ /* and output it */
+ if (json) {
+ snprintf(buf,sizeof(buf),",\n { \"vrule\": \"%s\" }",dbuf);
+ } else {
+ snprintf(buf,sizeof(buf)," <vrule>%s</vrule>\n",dbuf);
+ }
+ addToBuffer(&rules,buf,0);
+ break;
+ default:
+ break;
+ }
+ }
+ /* now add prints */
+ if (prints.len) {
+ if (json){
+ snprintf(buf,sizeof(buf)," \"%s\": [\n","prints");
+ addToBuffer(buffer,buf,0);
+ addToBuffer(buffer,(char*)prints.data+2,prints.len-2);
+ addToBuffer(buffer,"\n ],\n",0);
+ } else {
+ snprintf(buf,sizeof(buf)," <%s>\n", "prints");
+ addToBuffer(buffer,buf,0);
+ addToBuffer(buffer,(char*)prints.data,prints.len);
+ snprintf(buf,sizeof(buf)," </%s>\n", "prints");
+ addToBuffer(buffer,buf,0);
+ }
+ free(prints.data);
+ }
+ /* now add gprints */
+ if (gprints.len) {
+ if (json){
+ snprintf(buf,sizeof(buf)," \"%s\": [\n","gprints");
+ addToBuffer(buffer,buf,0);
+ addToBuffer(buffer,(char*)gprints.data+2,gprints.len-2);
+ addToBuffer(buffer,"\n ],\n",0);
+ } else {
+ snprintf(buf,sizeof(buf)," <%s>\n", "gprints");
+ addToBuffer(buffer,buf,0);
+ addToBuffer(buffer,(char*)gprints.data,gprints.len);
+ snprintf(buf,sizeof(buf)," </%s>\n", "gprints");
+ addToBuffer(buffer,buf,0);
+ }
+ free(gprints.data);
+ }
+ /* now add rules */
+ if (rules.len) {
+ if (json){
+ snprintf(buf,sizeof(buf)," \"%s\": [\n","rules");
+ addToBuffer(buffer,buf,0);
+ addToBuffer(buffer,(char*)rules.data+2,rules.len-2);
+ addToBuffer(buffer,"\n ],\n",0);
+ } else {
+ snprintf(buf,sizeof(buf)," <%s>\n", "rules");
+ addToBuffer(buffer,buf,0);
+ addToBuffer(buffer,(char*)rules.data,rules.len);
+ snprintf(buf,sizeof(buf)," </%s>\n", "rules");
+ addToBuffer(buffer,buf,0);
+ }
+ free(rules.data);
+ }
+ /* and return */
+ return 0;
+}
projects / rrdtool.git / commitdiff