com.nepxion.discovery.plugin.strategy.opentelemetry.monitor.OpenTelemetryStrategyTracer Maven / Gradle / Ivy

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Nepxion Discovery is a solution for Spring Cloud with blue green, gray, weight, limitation, circuit breaker, degrade, isolation, monitor, tracing, dye, failover, async agent

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package com.nepxion.discovery.plugin.strategy.opentelemetry.monitor;

/**
 * Title: Nepxion Discovery
 * Description: Nepxion Discovery
 * Copyright: Copyright (c) 2017-2050
 * Company: Nepxion
 * @author Haojun Ren
 * @version 1.0
 */

import io.opentelemetry.api.trace.Span;
import io.opentelemetry.api.trace.Tracer;

import org.apache.commons.lang3.exception.ExceptionUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;

import com.nepxion.discovery.common.constant.DiscoveryConstant;
import com.nepxion.discovery.plugin.strategy.constant.StrategyConstant;
import com.nepxion.discovery.plugin.strategy.monitor.AbstractStrategyTracer;

public class OpenTelemetryStrategyTracer extends AbstractStrategyTracer {
    @Value("${" + StrategyConstant.SPRING_APPLICATION_STRATEGY_TRACER_EXCEPTION_DETAIL_OUTPUT_ENABLED + ":false}")
    protected Boolean tracerExceptionDetailOutputEnabled;

    @Autowired
    private Tracer tracer;

    @Override
    protected Span buildSpan() {
        return tracer.spanBuilder(tracerSpanValue).startSpan();
    }

    @Override
    protected void outputSpan(Span span, String key, String value) {
        span.setAttribute(key, value);
    }

    @Override
    protected void errorSpan(Span span, Throwable e) {
        span.setAttribute(DiscoveryConstant.EVENT, DiscoveryConstant.ERROR);
        if (tracerExceptionDetailOutputEnabled) {
            span.setAttribute(DiscoveryConstant.ERROR_OBJECT, ExceptionUtils.getStackTrace(e));
        } else {
            span.recordException(e);
        }
    }

    @Override
    protected void finishSpan(Span span) {
        span.end();
    }

    //  Never used probably
    @Override
    protected Span getActiveSpan() {
        return null;
    }

    @Override
    protected String toTraceId(Span span) {
        return span.getSpanContext().getTraceId();
    }

    @Override
    protected String toSpanId(Span span) {
        return span.getSpanContext().getSpanId();
    }
}