Object execute() throws IOException {
gdef = new RrdGraphDef();
// OPTIONS
// START, END
String t1 = getOptionValue("s", "start", DEFAULT_START),
t2 = getOptionValue("e", "end", DEFAULT_END);
gdef.setTimeSpan(Util.getTimestamps(t1, t2));
// X-GRID
parseXGrid(getOptionValue("x", "x-grid"));
// Y-GRID
parseYGrid(getOptionValue("y", "y-grid"));
// ALT-Y-GRID
gdef.setAltYGrid(getBooleanOption("Y", "alt-y-grid"));
// NO_MINOR
gdef.setNoMinorGrid(getBooleanOption(null, "no-minor"));
// ALT-Y-MRTG
gdef.setAltYMrtg(getBooleanOption("R", "alt-y-mrtg"));
// ALT-AUTOSCALE
gdef.setAltAutoscale(getBooleanOption("A", "alt-autoscale"));
// ALT-AUTOSCALE-MAX
gdef.setAltAutoscaleMax(getBooleanOption("M", "alt-autoscale-max"));
// UNITS-EXPONENT
String opt = getOptionValue("X", "units-exponent");
if (opt != null) {
gdef.setUnitsExponent(parseInt(opt));
}
// UNITS-LENGTH
opt = getOptionValue("L", "units-length");
if (opt != null) {
gdef.setUnitsLength(parseInt(opt));
}
// VERTICAL LABEL
opt = getOptionValue("v", "vertical-label");
if (opt != null) {
gdef.setVerticalLabel(opt);
}
// WIDTH
opt = getOptionValue("w", "width");
if (opt != null) {
gdef.setWidth(parseInt(opt));
}
// HEIGHT
opt = getOptionValue("h", "height");
if (opt != null) {
gdef.setHeight(parseInt(opt));
}
// INTERLACED
gdef.setInterlaced(getBooleanOption("i", "interlaced"));
// IMGINFO
opt = getOptionValue("f", "imginfo");
if (opt != null) {
gdef.setImageInfo(opt);
}
// IMGFORMAT
opt = getOptionValue("a", "imgformat");
if (opt != null) {
gdef.setImageFormat(opt);
}
// BACKGROUND
opt = getOptionValue("B", "background");
if (opt != null) {
gdef.setBackgroundImage(opt);
}
// OVERLAY
opt = getOptionValue("O", "overlay");
if (opt != null) {
gdef.setOverlayImage(opt);
}
// UNIT
opt = getOptionValue("U", "unit");
if (opt != null) {
gdef.setUnit(opt);
}
// LAZY
gdef.setLazy(getBooleanOption("z", "lazy"));
// UPPER-LIMIT
opt = getOptionValue("u", "upper-limit");
if (opt != null) {
gdef.setMaxValue(parseDouble(opt));
}
// LOWER-LIMIT
opt = getOptionValue("l", "lower-limit");
if (opt != null) {
gdef.setMinValue(parseDouble(opt));
}
// RIGID
gdef.setRigid(getBooleanOption("r", "rigid"));
// BASE
opt = getOptionValue("b", "base");
if (opt != null) {
gdef.setBase(parseDouble(opt));
}
// LOGARITHMIC
gdef.setLogarithmic(getBooleanOption("o", "logarithmic"));
// COLORS
parseColors(getMultipleOptionValues("c", "color"));
// NO-LEGEND
gdef.setNoLegend(getBooleanOption("g", "no-legend"));
// ONLY_GRAPH
gdef.setOnlyGraph(getBooleanOption("j", "only-graph"));
// FORCE-RULES-LEGEND
gdef.setForceRulesLegend(getBooleanOption("F", "force-rules-legend"));
// TITLE
opt = getOptionValue("t", "title");
if (opt != null) {
gdef.setTitle(opt);
}
// STEP
opt = getOptionValue("S", "step");
if (opt != null) {
gdef.setStep(parseLong(opt));
}
// NON-OPTIONS
String[] words = getRemainingWords();
// the first word must be a filename
if (words.length < 2) {
throw new IllegalArgumentException("Image filename must be specified");
}
gdef.setFilename(words[1]);
// parse remaining words, in no particular order
for (int i = 2; i < words.length; i++) {
if (words[i].startsWith("DEF:")) {
parseDef(words[i]);
} else if (words[i].startsWith("CDEF:")) {
parseCDef(words[i]);
} else if (words[i].startsWith("PRINT:")) {
parsePrint(words[i]);
} else if (words[i].startsWith("GPRINT:")) {
parseGPrint(words[i]);
} else if (words[i].startsWith("COMMENT:")) {
parseComment(words[i]);
} else if (words[i].startsWith("HRULE:")) {
parseHRule(words[i]);
} else if (words[i].startsWith("VRULE:")) {
parseVRule(words[i]);
} else if (words[i].startsWith("LINE1:")
|| words[i].startsWith("LINE2:")
|| words[i].startsWith("LINE3:")) {
parseLine(words[i]);
} else if (words[i].startsWith("AREA:")) {
parseArea(words[i]);
} else if (words[i].startsWith("STACK:")) {
parseStack(words[i]);
} else {
throw new IllegalArgumentException("Unexpected GRAPH token encountered: " + words[i]);
}
}
// create diagram finally
RrdGraphInfo info = new RrdGraph(gdef).getRrdGraphInfo();
if (info.getFilename().equals(RrdGraphConstants.IN_MEMORY_IMAGE)) {
println(new String(info.getBytes()));
} else {
println(info.getWidth() + "x" + info.getHeight());
String[] plines = info.getPrintLines();
for (String pline : plines) {
println(pline);
}
if (info.getImgInfo() != null && info.getImgInfo().length() > 0) {
println(info.getImgInfo());
}
}
return info;
}
@GET
@Produces({MediaType.APPLICATION_JSON})
public Response getChartSeries(
@Context HttpHeaders headers,
@QueryParam("rrd") String itemName,
@QueryParam("ds") String consFunction,
@QueryParam("start") String start,
@QueryParam("end") String end,
@QueryParam("res") long resolution) {
if (logger.isDebugEnabled()) {
logger.debug("Received GET request at '{}' for rrd '{}'.", uriInfo.getPath(), itemName);
}
String responseType = MediaType.APPLICATION_JSON;
// RRD specific: no equivalent in PersistenceService known
ConsolFun consilidationFunction = ConsolFun.valueOf(consFunction);
// read the start/end time as they are provided in the RRD-way, we use
// the RRD4j to read them
long[] times = Util.getTimestamps(start, end);
Date startTime = new Date();
startTime.setTime(times[0] * 1000L);
Date endTime = new Date();
endTime.setTime(times[1] * 1000L);
if (itemName.endsWith(".rrd")) {
itemName = itemName.substring(0, itemName.length() - 4);
}
String[] parts = itemName.split(":");
String service = "rrd4j";
if (parts.length == 2) {
itemName = parts[1];
service = parts[0];
}
Item item;
try {
item = itemRegistry.getItem(itemName);
logger.debug("item '{}' found ", item);
// Prefer RRD-Service
QueryablePersistenceService persistenceService = getPersistenceServices().get(service);
// Fallback to first persistenceService from list
if (persistenceService == null) {
Iterator<Entry<String, QueryablePersistenceService>> pit =
getPersistenceServices().entrySet().iterator();
if (pit.hasNext()) {
persistenceService = pit.next().getValue();
} else {
throw new IllegalArgumentException("No Persistence service found.");
}
}
Object data = null;
if (persistenceService.getId().equals("rrd4j")) {
data =
getRrdSeries(
persistenceService, item, consilidationFunction, startTime, endTime, resolution);
} else {
data = getPersistenceSeries(persistenceService, item, startTime, endTime, resolution);
}
return Response.ok(data, responseType).build();
} catch (ItemNotFoundException e1) {
logger.error("Item '{}' not found error while requesting series data.", itemName);
}
return Response.serverError().build();
}
