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Let Prometheus exporter plugin support utf8 characters (#8228)

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dahn 2023-11-15 09:48:11 +01:00 committed by GitHub
parent b7835d02d2
commit 1a2dbebe48
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1 changed files with 15 additions and 4 deletions
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19
plugins/integrations/prometheus/src/main/java/org/apache/cloudstack/metrics/PrometheusExporterServerImpl.java
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@ -28,6 +28,7 @@ import javax.inject.Inject;
import java.io.IOException;
import java.io.OutputStream;
import java.net.InetSocketAddress;
import java.nio.charset.StandardCharsets;
import java.util.Arrays;
public class PrometheusExporterServerImpl extends ManagerBase implements PrometheusExporterServer, Configurable {
@ -57,11 +58,21 @@ public class PrometheusExporterServerImpl extends ManagerBase implements Prometh
response = prometheusExporter.getMetrics();
responseCode = 200;
}
httpExchange.getResponseHeaders().set("content-type", "text/plain");
httpExchange.sendResponseHeaders(responseCode, response.length());
byte[] bytesToOutput = response.getBytes(StandardCharsets.UTF_8);
httpExchange.getResponseHeaders().set("content-type", "text/plain; charset=UTF-8");
httpExchange.sendResponseHeaders(responseCode, bytesToOutput.length);
final OutputStream os = httpExchange.getResponseBody();
os.write(response.getBytes());
os.close();
try {
os.write(bytesToOutput);
} catch (IOException e) {
LOG.error(String.format("could not export Prometheus data due to %s", e.getLocalizedMessage()));
if (LOG.isDebugEnabled()) {
LOG.debug("Error during Prometheus export: ", e);
}
os.write("The system could not export Prometheus due to an internal error. Contact your operator to learn about the reason.".getBytes());
} finally {
os.close();
}
}
}