org.springframework.cloud.sleuth.autoconfig.actuate.BraveFinishedSpanWriter Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of spring-cloud-sleuth-autoconfigure Show documentation
Show all versions of spring-cloud-sleuth-autoconfigure Show documentation
Spring Cloud Sleuth AutoConfigure
/*
* Copyright 2013-2021 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 org.springframework.cloud.sleuth.autoconfig.actuate;
import java.util.List;
import java.util.stream.Collectors;
import brave.Tags;
import brave.handler.MutableSpanBytesEncoder;
import org.springframework.cloud.sleuth.brave.bridge.BraveFinishedSpan;
import org.springframework.cloud.sleuth.exporter.FinishedSpan;
import org.springframework.cloud.sleuth.exporter.SpanReporter;
/**
* A {@link SpanReporter} that buffers finished spans.
*
* @author Marcin Grzejszczak
* @since 3.1.0
*/
class BraveFinishedSpanWriter implements FinishedSpanWriter {
@Override
public String write(TextOutputFormat format, List spans) {
if (format == TextOutputFormat.CONTENT_TYPE_OPENZIPKIN_JSON_V2) {
return new String(MutableSpanBytesEncoder.zipkinJsonV2(Tags.ERROR)
.encodeList(spans.stream().map(BraveFinishedSpan::toBrave).collect(Collectors.toList())));
}
return null;
}
}