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AbstractApacheHttpClientAdvice.java
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AbstractApacheHttpClientAdvice.java
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/*
* Licensed to Elasticsearch B.V. under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch B.V. licenses this file to you 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
*
* http://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 co.elastic.apm.agent.httpclient.common;
import co.elastic.apm.agent.httpclient.HttpClientHelper;
import co.elastic.apm.agent.tracer.ElasticContext;
import co.elastic.apm.agent.tracer.Outcome;
import co.elastic.apm.agent.tracer.Span;
import co.elastic.apm.agent.tracer.Tracer;
import co.elastic.apm.agent.tracer.dispatch.TextHeaderGetter;
import co.elastic.apm.agent.tracer.dispatch.TextHeaderSetter;
import java.net.URISyntaxException;
public abstract class AbstractApacheHttpClientAdvice {
public static <REQUEST, WRAPPER extends REQUEST, HTTPHOST, RESPONSE,
HeaderAccessor extends TextHeaderSetter<REQUEST> &
TextHeaderGetter<REQUEST>> Object startSpan(final Tracer tracer,
final ApacheHttpClientApiAdapter<REQUEST, WRAPPER, HTTPHOST, RESPONSE> adapter,
final WRAPPER request,
final HTTPHOST httpHost,
final HeaderAccessor headerAccessor) throws URISyntaxException {
ElasticContext<?> elasticContext = tracer.currentContext();
Span<?> span = null;
if (elasticContext.getSpan() != null) {
span = HttpClientHelper.startHttpClientSpan(elasticContext, adapter.getMethod(request), adapter.getUri(request), adapter.getHostName(httpHost));
if (span != null) {
span.activate();
}
}
tracer.currentContext().propagateContext(request, headerAccessor, headerAccessor);
return span;
}
public static <REQUEST, WRAPPER extends REQUEST, HTTPHOST, RESPONSE> void endSpan(ApacheHttpClientApiAdapter<REQUEST, WRAPPER, HTTPHOST, RESPONSE> adapter,
Object spanObj,
Throwable t,
RESPONSE response) {
Span<?> span = (Span<?>) spanObj;
if (span == null) {
return;
}
try {
if (response != null && adapter.isNotNullStatusLine(response)) {
int statusCode = adapter.getResponseCode(response);
span.getContext().getHttp().withStatusCode(statusCode);
}
span.captureException(t);
} finally {
// in case of circular redirect, we get an exception but status code won't be available without response
// thus we have to deal with span outcome directly
if (adapter.isCircularRedirectException(t)) {
span.withOutcome(Outcome.FAILURE);
}
span.deactivate().end();
}
}
}