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/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) [2018-2023] Payara Foundation and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
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* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
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* See the License for the specific
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*
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* file and include the License file at glassfish/legal/LICENSE.txt.
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* GPL Classpath Exception:
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* exception as provided by the Payara Foundation in the GPL Version 2 section of the License
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*
* Modifications:
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package fish.payara.microprofile.opentracing.cdi;
import fish.payara.opentracing.OpenTracingService;
import fish.payara.requesttracing.jaxrs.client.PayaraTracingServices;
import io.opentracing.Scope;
import io.opentracing.Span;
import io.opentracing.Tracer;
import io.opentracing.log.Fields;
import io.opentracing.tag.Tags;
import java.io.Serializable;
import java.util.HashMap;
import java.util.Map;
import java.util.logging.Level;
import java.util.logging.Logger;
import jakarta.annotation.Priority;
import jakarta.enterprise.inject.spi.BeanManager;
import jakarta.inject.Inject;
import jakarta.interceptor.AroundInvoke;
import jakarta.interceptor.Interceptor;
import jakarta.interceptor.InvocationContext;
import jakarta.ws.rs.DELETE;
import jakarta.ws.rs.GET;
import jakarta.ws.rs.HEAD;
import jakarta.ws.rs.OPTIONS;
import jakarta.ws.rs.PATCH;
import jakarta.ws.rs.POST;
import jakarta.ws.rs.PUT;
import org.eclipse.microprofile.opentracing.Traced;
import org.glassfish.api.invocation.InvocationManager;
import static fish.payara.microprofile.opentracing.cdi.OpenTracingCdiUtils.getAnnotation;
/**
* Interceptor for MicroProfile Traced annotation.
*
* @author Andrew Pielage
* @author David Matejcek
*/
@Interceptor
@Traced
@Priority(Interceptor.Priority.PLATFORM_AFTER)
public class TracedInterceptor implements Serializable {
private static final long serialVersionUID = -7772038254542420659L;
private static final Logger LOG = Logger.getLogger(TracedInterceptor.class.getName());
@SuppressWarnings("rawtypes")
private static final Class[] HTTP_METHODS = //
new Class[] {GET.class, POST.class, DELETE.class, PUT.class, HEAD.class, PATCH.class, OPTIONS.class};
@Inject
private BeanManager beanManager;
/**
* If the tracing is enabled and possible for the invoked method, traces it's execution.
* If not, only executes the invocation context.
*
* @param invocationContext the context to be executed
* @return result of the invocation context execution.
* @throws Exception any execution thrown from the invocation context execution.
*/
@AroundInvoke
public Object traceCdiCall(final InvocationContext invocationContext) throws Exception {
LOG.fine(() -> "traceCdiCall(" + invocationContext + ")");
// Get the required HK2 services
final PayaraTracingServices payaraTracingServices = new PayaraTracingServices();
final OpenTracingService openTracing = payaraTracingServices.getOpenTracingService();
final InvocationManager invocationManager = payaraTracingServices.getInvocationManager();
// If Request Tracing is enabled, and this isn't a JaxRs method
if (openTracing == null || !openTracing.isEnabled() //
|| isJaxRsMethod(invocationContext) || isWebServiceMethod(invocationContext, invocationManager)) {
// If request tracing was turned off, or this is a JaxRs method, just carry on
LOG.finest("The call is already monitored by some different component, proceeding the invocation.");
return invocationContext.proceed();
}
// Get the Traced annotation present on the method or class
final Traced traced = getAnnotation(beanManager, Traced.class, invocationContext);
// Get the enabled (value) variable from a config override, or from the annotation if there is no override
final boolean tracingEnabled = OpenTracingCdiUtils
.getConfigOverrideValue(Traced.class, "value", invocationContext, boolean.class)
.orElse(traced.value());
// If we've explicitly been told not to trace the method: don't!
if (!tracingEnabled) {
LOG.finest("Tracing is not enabled, nothing to do.");
return invocationContext.proceed();
}
// If we *have* been told to, get the application's Tracer instance and start an active span.
final String applicationName = openTracing.getApplicationName(invocationManager, invocationContext);
final Tracer tracer = openTracing.getTracer(applicationName);
final String operationName = getOperationName(invocationContext, traced);
Span parentSpan = tracer.activeSpan();
final Span span = tracer.buildSpan(operationName).asChildOf(parentSpan).start();
try (Scope scope = tracer.scopeManager().activate(span)) {
try {
return invocationContext.proceed();
} catch (final Exception ex) {
LOG.log(Level.FINEST, "Setting the error to the active span ...", ex);
span.setTag(Tags.ERROR.getKey(), true);
final Map errorInfoMap = new HashMap<>();
errorInfoMap.put(Fields.EVENT, "error");
errorInfoMap.put(Fields.ERROR_OBJECT, ex.getClass().getName());
span.log(errorInfoMap);
throw ex;
}
} finally {
span.finish();
}
}
/**
* Helper method that determines if the annotated method is a JaxRs method or not by inspecting it for HTTP Method
* annotations. JaxRs method tracing is handled by the Client/Container filters, so we don't process them using this
* interceptor.
*
* @param invocationContext The invocation context from the AroundInvoke method.
* @return True if the method is a JaxRs method.
*/
@SuppressWarnings({"unchecked", "rawtypes"}) // safe here.
private boolean isJaxRsMethod(InvocationContext invocationContext) {
// Check if any of the HTTP Method annotations are present on the intercepted method
for (Class httpMethod : HTTP_METHODS) {
if (getAnnotation(beanManager, httpMethod, invocationContext) != null) {
return true;
}
}
return false;
}
/**
* Helper method that determines if the annotated method is the monitored JAX-WS method or not by inspecting the invocation manager.
*
* JaxWs method tracing is handled by the JAX-WS monitoring pipe/tube, so we don't process them using this
* interceptor.
*
* @param invocationContext The invocation context from the AroundInvoke method.
* @param invocationManager The current invocation manager for this thread
* @return True if the method is a JaxRs method.
*/
private boolean isWebServiceMethod(InvocationContext invocationContext, InvocationManager invocationManager) {
return invocationContext.getMethod().equals(invocationManager.peekWebServiceMethod());
}
/**
* Get the operationName variable from a config override, or from the annotation if there is no override
*
* @return the name of the operation. Never null.
*/
private String getOperationName(final InvocationContext invocationContext, final Traced traced) {
final String operationName = OpenTracingCdiUtils
.getConfigOverrideValue(Traced.class, "operationName", invocationContext, String.class)
.orElse(traced.operationName());
if (operationName.isEmpty()) {
// If the operation name is blank, set it to the full method signature
return invocationContext.getMethod().getDeclaringClass().getCanonicalName() + "."
+ invocationContext.getMethod().getName();
}
return operationName;
}
}