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davsclaus merged 2 commits into from
May 17, 2026
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TUI: endpoints tab flow panel and mirrored activity chart #23266

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TUI: endpoints tab - flow panel, mirrored activity chart (60s window …
davsclaus May 17, 2026
a8b3a79
TUI: extract MirroredSparkline widget from inline endpoint chart rend…
davsclaus May 17, 2026
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161 changes: 160 additions & 1 deletion ...g-plugin-tui/src/main/java/org/apache/camel/dsl/jbang/core/commands/tui/CamelMonitor.java
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Original file line number Diff line number Diff line change
Expand Up @@ -108,6 +108,7 @@ public class CamelMonitor extends CamelCommand {
private static final long VANISH_DURATION_MS = 6000;
private static final long DEFAULT_REFRESH_MS = 100;
private static final int MAX_SPARKLINE_POINTS = 60;
private static final int MAX_ENDPOINT_CHART_POINTS = 60;
private static final int MAX_LOG_LINES = 3000;
private static final int MAX_TRACES = 200;
private static final int NUM_TABS = 9;
Expand Down Expand Up @@ -168,6 +169,12 @@ public class CamelMonitor extends CamelCommand {
// Track last time a sparkline point was recorded
private final Map<String, Long> previousExchangesTime = new ConcurrentHashMap<>();

// Endpoint in/out sliding window history per PID (one point per second, 20 points)
private final Map<String, LinkedList<Long>> endpointInHistory = new ConcurrentHashMap<>();
private final Map<String, LinkedList<Long>> endpointOutHistory = new ConcurrentHashMap<>();
private final Map<String, LinkedList<long[]>> endpointSamples = new ConcurrentHashMap<>();
private final Map<String, Long> previousEndpointTime = new ConcurrentHashMap<>();

// Overview sort state
private String overviewSort = "name";
private int overviewSortIndex = 1;
Expand Down Expand Up @@ -2966,7 +2973,111 @@ private void renderEndpoints(Frame frame, Rect area) {
.title(" Endpoints sort:" + endpointSort + (showOnlyRemote ? " remote" : "") + " ").build())
.build();

frame.renderStatefulWidget(table, area, endpointTableState);
List<Rect> chunks = Layout.vertical()
.constraints(Constraint.fill(), Constraint.length(12))
.split(area);

frame.renderStatefulWidget(table, chunks.get(0), endpointTableState);

long inTotal = info.endpoints.stream()
.filter(ep -> "in".equals(ep.direction))
.mapToLong(ep -> ep.hits)
.sum();
long outTotal = info.endpoints.stream()
.filter(ep -> "out".equals(ep.direction))
.mapToLong(ep -> ep.hits)
.sum();
renderEndpointFlow(frame, chunks.get(1), inTotal, outTotal, info.name, info.pid);
}

private void renderEndpointFlow(Frame frame, Rect area, long inTotal, long outTotal, String name, String pid) {
List<Rect> hSplit = Layout.horizontal()
.constraints(Constraint.length(38), Constraint.fill())
.split(area);

// --- Left: ASCII flow diagram ---
int w = Math.max(10, hSplit.get(0).width() - 2);

String label = name != null ? name : "INTEGRATION";
if (CharWidth.of(label) > 20) {
label = CharWidth.truncateWithEllipsis(label, 20, CharWidth.TruncatePosition.END);
}
String box = "[ " + label + " ]";
int boxLen = CharWidth.of(box);

int sideLen = Math.max(4, (w - boxLen - 2) / 2);
String arm = "─".repeat(Math.max(1, sideLen - 1));
String arrowStr = arm + "►";

String inStr = String.valueOf(inTotal);
String outStr = String.valueOf(outTotal);

int inPad = Math.max(0, sideLen - inStr.length());
int centerGap = boxLen + 2;
int outPad = Math.max(0, sideLen - outStr.length());

Style inStyle = Style.EMPTY.fg(Color.GREEN);
Style outStyle = Style.EMPTY.fg(Color.BLUE);
Style dimStyle = Style.EMPTY.dim();

List<Line> flowLines = new ArrayList<>();
flowLines.add(Line.from(
Span.styled(" ".repeat(inPad) + inStr, inTotal > 0 ? inStyle : dimStyle),
Span.raw(" ".repeat(centerGap)),
Span.styled(outStr + " ".repeat(outPad), outTotal > 0 ? outStyle : dimStyle)));
flowLines.add(Line.from(
Span.styled(arrowStr, inTotal > 0 ? inStyle : dimStyle),
Span.raw(" "),
Span.styled(box, Style.EMPTY.fg(Color.CYAN).bold()),
Span.raw(" "),
Span.styled(arrowStr, outTotal > 0 ? outStyle : dimStyle)));
flowLines.add(Line.from(
Span.styled(" ".repeat(inPad) + "in", inTotal > 0 ? inStyle.dim() : dimStyle),
Span.raw(" ".repeat(centerGap)),
Span.styled("out" + " ".repeat(Math.max(0, outPad - 2)), outTotal > 0 ? outStyle.dim() : dimStyle)));

frame.renderWidget(Paragraph.builder()
.text(Text.from(flowLines))
.block(Block.builder().borderType(BorderType.ROUNDED).title(" Flow ").build())
.build(), hSplit.get(0));

// --- Right: 60-second sliding window chart (in=green up, out=blue down) ---
LinkedList<Long> inHist = endpointInHistory.getOrDefault(pid, new LinkedList<>());
LinkedList<Long> outHist = endpointOutHistory.getOrDefault(pid, new LinkedList<>());

int renderPoints = MAX_ENDPOINT_CHART_POINTS;
long[] inArr = new long[renderPoints];
long[] outArr = new long[renderPoints];
for (int i = 0; i < renderPoints; i++) {
int idx = inHist.size() - renderPoints + i;
if (idx >= 0) {
inArr[i] = inHist.get(idx);
}
idx = outHist.size() - renderPoints + i;
if (idx >= 0) {
outArr[i] = outHist.get(idx);
}
}
long curIn = inArr[renderPoints - 1];
long curOut = outArr[renderPoints - 1];

Line chartTitle = Line.from(
Span.styled("▬", Style.EMPTY.fg(Color.GREEN)),
Span.raw(String.format(" in:%-4d ", curIn)),
Span.styled("▬", Style.EMPTY.fg(Color.BLUE)),
Span.raw(String.format(" out:%-4d msg/s", curOut)));

Rect rightArea = hSplit.get(1);
frame.renderWidget(MirroredSparkline.builder()
.topData(inArr)
.bottomData(outArr)
.topStyle(Style.EMPTY.fg(Color.GREEN))
.bottomStyle(Style.EMPTY.fg(Color.BLUE))
.xLabels("-" + renderPoints + "s", "-" + (renderPoints * 3 / 4) + "s",
"-" + (renderPoints / 2) + "s", "-" + (renderPoints / 4) + "s", "now")
.block(Block.builder().borderType(BorderType.ROUNDED)
.title(Title.from(chartTitle)).build())
.build(), rightArea);
}

// ---- Tab 5: Log ----
Expand Down Expand Up @@ -3985,6 +4096,7 @@ private void refreshDataSync() {
if (info != null) {
infos.add(info);
updateThroughputHistory(info);
updateEndpointHistory(info);
}
}
});
Expand All @@ -4007,6 +4119,10 @@ private void refreshDataSync() {
it.remove();
throughputHistory.remove(entry.getKey());
failedHistory.remove(entry.getKey());
endpointInHistory.remove(entry.getKey());
endpointOutHistory.remove(entry.getKey());
endpointSamples.remove(entry.getKey());
previousEndpointTime.remove(entry.getKey());
} else if (!livePids.contains(entry.getKey())) {
IntegrationInfo ghost = entry.getValue().info;
ghost.vanishing = true;
Expand Down Expand Up @@ -4094,6 +4210,49 @@ private void updateThroughputHistory(IntegrationInfo info) {
}
}

private void updateEndpointHistory(IntegrationInfo info) {
long inTotal = info.endpoints.stream()
.filter(ep -> "in".equals(ep.direction))
.mapToLong(ep -> ep.hits)
.sum();
long outTotal = info.endpoints.stream()
.filter(ep -> "out".equals(ep.direction))
.mapToLong(ep -> ep.hits)
.sum();

long now = System.currentTimeMillis();
String pid = info.pid;
LinkedList<long[]> samples = endpointSamples.computeIfAbsent(pid, k -> new LinkedList<>());
samples.add(new long[] { now, inTotal, outTotal });

while (!samples.isEmpty() && now - samples.get(0)[0] > 1000) {
samples.remove(0);
}

if (samples.size() >= 2) {
long[] oldest = samples.get(0);
long[] newest = samples.get(samples.size() - 1);
long deltaMs = newest[0] - oldest[0];
long inRate = deltaMs > 0 ? (newest[1] - oldest[1]) * 1000 / deltaMs : 0;
long outRate = deltaMs > 0 ? (newest[2] - oldest[2]) * 1000 / deltaMs : 0;

Long lastTime = previousEndpointTime.get(pid);
if (lastTime == null || now - lastTime >= 1000) {
previousEndpointTime.put(pid, now);
LinkedList<Long> inHist = endpointInHistory.computeIfAbsent(pid, k -> new LinkedList<>());
inHist.add(Math.max(0, inRate));
while (inHist.size() > MAX_ENDPOINT_CHART_POINTS) {
inHist.remove(0);
}
LinkedList<Long> outHist = endpointOutHistory.computeIfAbsent(pid, k -> new LinkedList<>());
outHist.add(Math.max(0, outRate));
while (outHist.size() > MAX_ENDPOINT_CHART_POINTS) {
outHist.remove(0);
}
}
}
}

// ---- Trace Data Loading ----

private void refreshTraceData(List<Long> pids) {
Expand Down
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