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// Copyright 2016 Yahoo Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.feedhandler;
import com.yahoo.container.jdisc.HttpResponse;
import com.yahoo.metrics.MetricManager;
import com.yahoo.metrics.MetricSnapshot;
import com.yahoo.text.Utf8String;
import com.yahoo.text.XMLWriter;
import java.io.IOException;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
public class StatusResponse extends HttpResponse {
MetricManager manager;
int verbosity;
int snapshotTime;
StatusResponse(MetricManager manager, int verbosity, int snapshotTime) {
super(com.yahoo.jdisc.http.HttpResponse.Status.OK);
this.manager = manager;
this.snapshotTime = snapshotTime;
this.verbosity = verbosity;
}
@Override
public void render(OutputStream stream) throws IOException {
XMLWriter writer = new XMLWriter(new OutputStreamWriter(stream));
writer.openTag("status");
if (verbosity >= 2) {
writer.attribute(new Utf8String("description"), "Metrics since start");
}
if (snapshotTime == 0) {
MetricSnapshot snapshot = (new MetricSnapshot(
"Total metrics from start until current time", 0,
manager.getActiveMetrics().getMetrics(), false));
manager.getTotalMetricSnapshot().addToSnapshot(snapshot, (int)(System.currentTimeMillis() / 1000), false);
snapshot.printXml(manager, "", verbosity, writer);
} else {
try {
manager.getMetricSnapshotSet(snapshotTime).getSnapshot().printXml(manager, "", verbosity, writer);
} catch (Exception e) {
writer.openTag("error");
writer.attribute(new Utf8String("details"), "No metric snapshot with period " + snapshotTime +
" was found. Legal snapshot periods are: " + manager.getSnapshotPeriods());
writer.closeTag();
}
}
writer.closeTag();
writer.flush();
}
@Override
public java.lang.String getContentType() {
return "application/xml";
}
}
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