open-telemetry
/
opentelemetry-java-instrumentation
mirror of https://github.com/open-telemetry/opentelemetry-java-instrumentation.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Move servlet tests to individual modules. Fix servlet 2 instrumentation. 

Turns out we weren’t actually servlet 2 compatible.  That should be fixed now.  Unfortunately it appears servlet 2 also doesn’t expose the http response code, so we aren’t able to set it as a tag without custom instrumentation for each framework.

I also removed our log4j2 stuff since we’re using logback.
This commit is contained in:
Tyler Benson 2018-02-07 16:58:48 +10:00
parent 1a855c4271
commit 3e57a7a7ea
13 changed files with 355 additions and 39 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
dd-java-agent-ittests/dd-java-agent-ittests.gradle
View File

@ -24,6 +24,7 @@ dependencies {
testCompile project(':dd-trace-ot')
testCompile deps.opentracingMock
testCompile deps.testLogging
testCompile(project(':dd-java-agent:testing')) {
// Otherwise this can bring in classes that aren't "shadowed"
@ -36,16 +37,9 @@ dependencies {
// run embeded mongodb for integration testing
testCompile group: 'de.flapdoodle.embed', name: 'de.flapdoodle.embed.mongo', version: '1.50.5'
testCompile group: 'org.eclipse.jetty', name: 'jetty-server', version: '8.2.0.v20160908'
testCompile group: 'org.eclipse.jetty', name: 'jetty-servlet', version: '8.2.0.v20160908'
testCompile group: 'org.apache.tomcat.embed', name: 'tomcat-embed-core', version: '8.0.41'
testCompile group: 'org.apache.tomcat.embed', name: 'tomcat-embed-jasper', version: '8.0.41'
testCompile group: 'org.apache.httpcomponents', name: 'httpclient', version: '4.3'
testCompile group: 'com.squareup.okhttp3', name: 'okhttp', version: '3.6.0'
testCompile group: 'org.apache.logging.log4j', name: 'log4j-api', version: '2.8.2'
testCompile group: 'org.apache.logging.log4j', name: 'log4j-core', version: '2.8.2'
// JDBC tests:
testCompile group: 'com.h2database', name: 'h2', version: '1.4.196'
testCompile group: 'org.hsqldb', name: 'hsqldb', version: '2.3.+'

5
dd-java-agent-ittests/src/test/resources/log4j2.properties
View File

@ -1,5 +0,0 @@
appender.console.type=Console
appender.console.name=console
appender.console.layout.type=PatternLayout
rootLogger.level=debug
rootLogger.appenderRef.console.ref=console

7
dd-java-agent/instrumentation/servlet-2/servlet-2.gradle
View File

@ -24,4 +24,11 @@ dependencies {
compile deps.bytebuddy
compile deps.opentracing
compile deps.autoservice
testCompile project(':dd-java-agent:testing')
testCompile group: 'org.eclipse.jetty', name: 'jetty-server', version: '7.0.0.v20091005'
testCompile group: 'org.eclipse.jetty', name: 'jetty-servlet', version: '7.0.0.v20091005'
testCompile project(':dd-java-agent:instrumentation:okhttp-3') // used in the tests
testCompile group: 'com.squareup.okhttp3', name: 'okhttp', version: '3.6.0'
}

6
dd-java-agent/instrumentation/servlet-2/src/main/java/datadog/trace/instrumentation/servlet2/FilterChain2Instrumentation.java
View File

@ -19,7 +19,6 @@ import io.opentracing.Scope;
import io.opentracing.Span;
import io.opentracing.SpanContext;
import io.opentracing.contrib.web.servlet.filter.HttpServletRequestExtractAdapter;
import io.opentracing.contrib.web.servlet.filter.ServletFilterSpanDecorator;
import io.opentracing.propagation.Format;
import io.opentracing.tag.Tags;
import io.opentracing.util.GlobalTracer;
@ -52,10 +51,7 @@ public final class FilterChain2Instrumentation extends Instrumenter.Configurable
new HelperInjector(
"io.opentracing.contrib.web.servlet.filter.HttpServletRequestExtractAdapter",
"io.opentracing.contrib.web.servlet.filter.HttpServletRequestExtractAdapter$MultivaluedMapFlatIterator",
"io.opentracing.contrib.web.servlet.filter.ServletFilterSpanDecorator",
"io.opentracing.contrib.web.servlet.filter.ServletFilterSpanDecorator$1",
"io.opentracing.contrib.web.servlet.filter.TracingFilter",
"io.opentracing.contrib.web.servlet.filter.TracingFilter$1"))
"datadog.trace.instrumentation.servlet2.ServletFilterSpanDecorator"))
.transform(
DDAdvice.create()
.advice(

8
dd-java-agent/instrumentation/servlet-2/src/main/java/datadog/trace/instrumentation/servlet2/HttpServlet2Instrumentation.java
View File

@ -19,7 +19,6 @@ import io.opentracing.Scope;
import io.opentracing.Span;
import io.opentracing.SpanContext;
import io.opentracing.contrib.web.servlet.filter.HttpServletRequestExtractAdapter;
import io.opentracing.contrib.web.servlet.filter.ServletFilterSpanDecorator;
import io.opentracing.propagation.Format;
import io.opentracing.tag.Tags;
import io.opentracing.util.GlobalTracer;
@ -52,12 +51,9 @@ public final class HttpServlet2Instrumentation extends Instrumenter.Configurable
new HelperInjector(
"io.opentracing.contrib.web.servlet.filter.HttpServletRequestExtractAdapter",
"io.opentracing.contrib.web.servlet.filter.HttpServletRequestExtractAdapter$MultivaluedMapFlatIterator",
"io.opentracing.contrib.web.servlet.filter.ServletFilterSpanDecorator",
"io.opentracing.contrib.web.servlet.filter.ServletFilterSpanDecorator$1",
"io.opentracing.contrib.web.servlet.filter.TracingFilter",
"io.opentracing.contrib.web.servlet.filter.TracingFilter$1"))
"datadog.trace.instrumentation.servlet2.ServletFilterSpanDecorator"))
.transform(
DDAdvice.create()
DDAdvice.create(false) // Can't use the error handler for pre 1.5 classes...
.advice(
named("service")
.and(takesArgument(0, named("javax.servlet.http.HttpServletRequest")))

142
dd-java-agent/instrumentation/servlet-2/src/main/java/datadog/trace/instrumentation/servlet2/ServletFilterSpanDecorator.java Normal file
View File

@ -0,0 +1,142 @@
package datadog.trace.instrumentation.servlet2;
import io.opentracing.Span;
import io.opentracing.tag.Tags;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.util.HashMap;
import java.util.Map;
import javax.servlet.FilterChain;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* SpanDecorator to decorate span at different stages in filter processing (before
* filterChain.doFilter(), after and if exception is thrown).
*
* <p>Taken from
* https://raw.githubusercontent.com/opentracing-contrib/java-web-servlet-filter/v0.1.0/opentracing-web-servlet-filter/src/main/java/io/opentracing/contrib/web/servlet/filter/ServletFilterSpanDecorator.java
* and removed async and status code stuff to be Servlet 2.x compatible.
*
* @author Pavol Loffay
*/
public interface ServletFilterSpanDecorator {
/**
* Decorate span before {@link javax.servlet.Filter#doFilter(ServletRequest, ServletResponse,
* FilterChain)} is called. This is called right after span in created. Span is already present in
* request attributes with name {@link TracingFilter#SERVER_SPAN_CONTEXT}.
*
* @param httpServletRequest request
* @param span span to decorate
*/
void onRequest(HttpServletRequest httpServletRequest, Span span);
/**
* Decorate span after {@link javax.servlet.Filter#doFilter(ServletRequest, ServletResponse,
* FilterChain)}.
*
* @param httpServletRequest request
* @param httpServletResponse response
* @param span span to decorate
*/
void onResponse(
HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Span span);
/**
* Decorate span when an exception is thrown during processing in {@link
* javax.servlet.Filter#doFilter(ServletRequest, ServletResponse, FilterChain)}.
*
* @param httpServletRequest request
* @param exception exception
* @param span span to decorate
*/
void onError(
HttpServletRequest httpServletRequest,
HttpServletResponse httpServletResponse,
Throwable exception,
Span span);
/**
* Decorate span on asynchronous request timeout.
*
* @param httpServletRequest request
* @param httpServletResponse response
* @param timeout timeout
* @param span span to decorate
*/
void onTimeout(
HttpServletRequest httpServletRequest,
HttpServletResponse httpServletResponse,
long timeout,
Span span);
/**
* Adds standard tags to span. {@link Tags#HTTP_URL}, {@link Tags#HTTP_STATUS}, {@link
* Tags#HTTP_METHOD} and {@link Tags#COMPONENT}. If an exception during {@link
* javax.servlet.Filter#doFilter(ServletRequest, ServletResponse, FilterChain)} is thrown tag
* {@link Tags#ERROR} is added and {@link Tags#HTTP_STATUS} not because at this point it is not
* known.
*/
ServletFilterSpanDecorator STANDARD_TAGS =
new ServletFilterSpanDecorator() {
@Override
public void onRequest(final HttpServletRequest httpServletRequest, final Span span) {
Tags.COMPONENT.set(span, "java-web-servlet");
Tags.HTTP_METHOD.set(span, httpServletRequest.getMethod());
//without query params
Tags.HTTP_URL.set(span, httpServletRequest.getRequestURL().toString());
}
@Override
public void onResponse(
final HttpServletRequest httpServletRequest,
final HttpServletResponse httpServletResponse,
final Span span) {}
@Override
public void onError(
final HttpServletRequest httpServletRequest,
final HttpServletResponse httpServletResponse,
final Throwable exception,
final Span span) {
Tags.ERROR.set(span, Boolean.TRUE);
span.log(logsForException(exception));
}
@Override
public void onTimeout(
final HttpServletRequest httpServletRequest,
final HttpServletResponse httpServletResponse,
final long timeout,
final Span span) {
Tags.ERROR.set(span, Boolean.TRUE);
final Map<String, Object> timeoutLogs = new HashMap<>();
timeoutLogs.put("event", Tags.ERROR.getKey());
timeoutLogs.put("message", "timeout");
timeoutLogs.put("timeout", timeout);
}
private Map<String, String> logsForException(final Throwable throwable) {
final Map<String, String> errorLog = new HashMap<>(3);
errorLog.put("event", Tags.ERROR.getKey());
final String message =
throwable.getCause() != null
? throwable.getCause().getMessage()
: throwable.getMessage();
if (message != null) {
errorLog.put("message", message);
}
final StringWriter sw = new StringWriter();
throwable.printStackTrace(new PrintWriter(sw));
errorLog.put("stack", sw.toString());
return errorLog;
}
};
}

160
dd-java-agent/instrumentation/servlet-2/src/test/groovy/JettyServletTest.groovy Normal file
View File

@ -0,0 +1,160 @@
import datadog.opentracing.DDSpan
import datadog.opentracing.DDTracer
import datadog.trace.agent.test.AgentTestRunner
import datadog.trace.api.DDSpanTypes
import datadog.trace.common.writer.ListWriter
import io.opentracing.util.GlobalTracer
import okhttp3.Interceptor
import okhttp3.OkHttpClient
import okhttp3.Request
import okhttp3.Response
import org.eclipse.jetty.server.Server
import org.eclipse.jetty.servlet.ServletContextHandler
import spock.lang.Unroll
import java.lang.reflect.Field
import java.util.concurrent.CountDownLatch
import java.util.concurrent.TimeUnit
class JettyServletTest extends AgentTestRunner {
static final int PORT = randomOpenPort()
// Jetty needs this to ensure consistent ordering for async.
static CountDownLatch latch
OkHttpClient client = new OkHttpClient.Builder()
.addNetworkInterceptor(new Interceptor() {
@Override
Response intercept(Interceptor.Chain chain) throws IOException {
def response = chain.proceed(chain.request())
JettyServletTest.latch.await(10, TimeUnit.SECONDS) // don't block forever or test never fails.
return response
}
})
// Uncomment when debugging:
.connectTimeout(1, TimeUnit.HOURS)
.writeTimeout(1, TimeUnit.HOURS)
.readTimeout(1, TimeUnit.HOURS)
.build()
private Server jettyServer
private ServletContextHandler servletContext
ListWriter writer = new ListWriter() {
@Override
void write(final List<DDSpan> trace) {
add(trace)
JettyServletTest.latch.countDown()
}
}
DDTracer tracer = new DDTracer(writer)
def setup() {
jettyServer = new Server(PORT)
servletContext = new ServletContextHandler()
servletContext.addServlet(TestServlet.Sync, "/sync")
jettyServer.setHandler(servletContext)
jettyServer.start()
System.out.println(
"Jetty server: http://localhost:" + PORT + "/")
try {
GlobalTracer.register(tracer)
} catch (final Exception e) {
// Force it anyway using reflection
final Field field = GlobalTracer.getDeclaredField("tracer")
field.setAccessible(true)
field.set(null, tracer)
}
writer.start()
assert GlobalTracer.isRegistered()
}
def cleanup() {
jettyServer.stop()
jettyServer.destroy()
}
@Unroll
def "test #path servlet call"() {
setup:
latch = new CountDownLatch(1)
def request = new Request.Builder()
.url("http://localhost:$PORT/$path")
.get()
.build()
def response = client.newCall(request).execute()
expect:
response.body().string().trim() == expectedResponse
writer.size() == 2 // second (parent) trace is the okhttp call above...
def trace = writer.firstTrace()
trace.size() == 1
def span = trace[0]
span.context().operationName == "servlet.request"
span.context().spanType == DDSpanTypes.WEB_SERVLET
!span.context().getErrorFlag()
span.context().parentId != 0 // parent should be the okhttp call.
span.context().tags["http.url"] == "http://localhost:$PORT/$path"
span.context().tags["http.method"] == "GET"
span.context().tags["span.kind"] == "server"
span.context().tags["component"] == "java-web-servlet"
span.context().tags["http.status_code"] == null // sadly servlet 2.x doesn't expose it generically.
span.context().tags["thread.name"] != null
span.context().tags["thread.id"] != null
span.context().tags.size() == 7
where:
path | expectedResponse
"sync" | "Hello Sync"
}
@Unroll
def "test #path error servlet call"() {
setup:
def request = new Request.Builder()
.url("http://localhost:$PORT/$path?error=true")
.get()
.build()
def response = client.newCall(request).execute()
expect:
response.body().string().trim() != expectedResponse
writer.size() == 2 // second (parent) trace is the okhttp call above...
def trace = writer.firstTrace()
trace.size() == 1
def span = trace[0]
span.context().operationName == "servlet.request"
span.context().spanType == DDSpanTypes.WEB_SERVLET
span.context().getErrorFlag()
span.context().parentId != 0 // parent should be the okhttp call.
span.context().tags["http.url"] == "http://localhost:$PORT/$path"
span.context().tags["http.method"] == "GET"
span.context().tags["span.kind"] == "server"
span.context().tags["component"] == "java-web-servlet"
span.context().tags["http.status_code"] == null // sadly servlet 2.x doesn't expose it generically.
span.context().tags["thread.name"] != null
span.context().tags["thread.id"] != null
span.context().tags["error"] == true
span.context().tags["error.msg"] == "some $path error"
span.context().tags["error.type"] == RuntimeException.getName()
span.context().tags["error.stack"] != null
span.context().tags.size() == 11
where:
path | expectedResponse
"sync" | "Hello Sync"
}
private static int randomOpenPort() {
new ServerSocket(0).withCloseable {
it.setReuseAddress(true)
return it.getLocalPort()
}
}
}

17
dd-java-agent/instrumentation/servlet-2/src/test/groovy/TestServlet.groovy Normal file
View File

@ -0,0 +1,17 @@
import groovy.servlet.AbstractHttpServlet
import javax.servlet.http.HttpServletRequest
import javax.servlet.http.HttpServletResponse
class TestServlet {
static class Sync extends AbstractHttpServlet {
@Override
void doGet(HttpServletRequest req, HttpServletResponse resp) {
if (req.getParameter("error") != null) {
throw new RuntimeException("some sync error")
}
resp.writer.print("Hello Sync")
}
}
}

9
dd-java-agent/instrumentation/servlet-3/servlet-3.gradle
View File

@ -25,4 +25,13 @@ dependencies {
compile deps.bytebuddy
compile deps.opentracing
compile deps.autoservice
testCompile project(':dd-java-agent:testing')
testCompile group: 'org.eclipse.jetty', name: 'jetty-server', version: '8.2.0.v20160908'
testCompile group: 'org.eclipse.jetty', name: 'jetty-servlet', version: '8.2.0.v20160908'
testCompile group: 'org.apache.tomcat.embed', name: 'tomcat-embed-core', version: '8.0.41'
testCompile group: 'org.apache.tomcat.embed', name: 'tomcat-embed-jasper', version: '8.0.41'
testCompile project(':dd-java-agent:instrumentation:okhttp-3') // used in the tests
testCompile group: 'com.squareup.okhttp3', name: 'okhttp', version: '3.6.0'
}

6
dd-java-agent-ittests/src/test/groovy/datadog/trace/agent/integration/servlet/JettyServletTest.groovy → dd-java-agent/instrumentation/servlet-3/src/test/groovy/JettyServletTest.groovy
View File

@ -1,7 +1,6 @@
package datadog.trace.agent.integration.servlet
import datadog.opentracing.DDSpan
import datadog.opentracing.DDTracer
import datadog.trace.agent.test.AgentTestRunner
import datadog.trace.api.DDSpanTypes
import datadog.trace.common.writer.ListWriter
import io.opentracing.util.GlobalTracer
@ -11,14 +10,13 @@ import okhttp3.Request
import okhttp3.Response
import org.eclipse.jetty.server.Server
import org.eclipse.jetty.servlet.ServletContextHandler
import spock.lang.Specification
import spock.lang.Unroll
import java.lang.reflect.Field
import java.util.concurrent.CountDownLatch
import java.util.concurrent.TimeUnit
class JettyServletTest extends Specification {
class JettyServletTest extends AgentTestRunner {
static final int PORT = randomOpenPort()

2
dd-java-agent-ittests/src/test/groovy/datadog/trace/agent/integration/servlet/TestServlet.groovy → dd-java-agent/instrumentation/servlet-3/src/test/groovy/TestServlet.groovy
View File

@ -1,5 +1,3 @@
package datadog.trace.agent.integration.servlet
import groovy.servlet.AbstractHttpServlet
import javax.servlet.annotation.WebServlet

6
dd-java-agent-ittests/src/test/groovy/datadog/trace/agent/integration/servlet/TomcatServletTest.groovy → dd-java-agent/instrumentation/servlet-3/src/test/groovy/TomcatServletTest.groovy
View File

@ -1,7 +1,6 @@
package datadog.trace.agent.integration.servlet
import com.google.common.io.Files
import datadog.opentracing.DDTracer
import datadog.trace.agent.test.AgentTestRunner
import datadog.trace.api.DDSpanTypes
import datadog.trace.common.writer.ListWriter
import io.opentracing.util.GlobalTracer
@ -11,12 +10,11 @@ import org.apache.catalina.Context
import org.apache.catalina.startup.Tomcat
import org.apache.tomcat.JarScanFilter
import org.apache.tomcat.JarScanType
import spock.lang.Specification
import spock.lang.Unroll
import java.lang.reflect.Field
class TomcatServletTest extends Specification {
class TomcatServletTest extends AgentTestRunner {
static final int PORT = randomOpenPort()
OkHttpClient client = new OkHttpClient.Builder()

12
dd-java-agent/tooling/src/main/java/datadog/trace/agent/tooling/DDAdvice.java
View File

@ -18,9 +18,15 @@ public class DDAdvice extends AgentBuilder.Transformer.ForAdvice {
* @return the bytebuddy advice
*/
public static AgentBuilder.Transformer.ForAdvice create() {
return new DDAdvice()
.with(AGENT_CLASS_LOCATION_STRATEGY)
.withExceptionHandler(ExceptionHandlers.defaultExceptionHandler());
return create(true);
}
public static AgentBuilder.Transformer.ForAdvice create(final boolean includeExceptionHandler) {
ForAdvice advice = new DDAdvice().with(AGENT_CLASS_LOCATION_STRATEGY);
if (includeExceptionHandler) {
advice = advice.withExceptionHandler(ExceptionHandlers.defaultExceptionHandler());
}
return advice;
}
private DDAdvice() {}