io.micrometer.tracing.otel.bridge.OtelTraceContextBuilder Maven / Gradle / Ivy

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/**
 * Copyright 2022 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package io.micrometer.tracing.otel.bridge;

import io.micrometer.common.util.StringUtils;
import io.micrometer.tracing.TraceContext;
import io.opentelemetry.api.trace.SpanContext;
import io.opentelemetry.api.trace.TraceFlags;
import io.opentelemetry.api.trace.TraceState;

/**
 * OpenTelemetry implementation of a {@link TraceContext.Builder}.
 *
 * @author Marcin Grzejszczak
 * @since 1.0.0
 */
public class OtelTraceContextBuilder implements TraceContext.Builder {

    private String traceId;

    private String parentId;

    private String spanId;

    private Boolean sampled;

    @Override
    public TraceContext.Builder traceId(String traceId) {
        this.traceId = traceId;
        return this;
    }

    @Override
    public TraceContext.Builder parentId(String parentId) {
        this.parentId = parentId;
        return this;
    }

    @Override
    public TraceContext.Builder spanId(String spanId) {
        this.spanId = spanId;
        return this;
    }

    @Override
    public TraceContext.Builder sampled(Boolean sampled) {
        this.sampled = sampled;
        return this;
    }

    @Override
    public TraceContext build() {
        if (StringUtils.isNotEmpty(this.parentId)) {
            return new OtelTraceContext(
                    SpanContext.createFromRemoteParent(this.traceId, this.spanId,
                            this.sampled ? TraceFlags.getSampled() : TraceFlags.getDefault(), TraceState.getDefault()),
                    null);
        }
        return new OtelTraceContext(
                SpanContext.create(this.traceId, this.spanId,
                        this.sampled ? TraceFlags.getSampled() : TraceFlags.getDefault(), TraceState.getDefault()),
                null);
    }

}