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RULE java-net: Java HttpUrlConnection connect entry
CLASS ^java.net.HttpURLConnection
METHOD connect()
HELPER io.opentracing.contrib.agent.OpenTracingHelper
AT ENTRY
IF !$0.connected && retrieveSpan($0) == null && !ignore($0)
DO
  associateSpan($0, getTracer().buildSpan($0.getRequestMethod())
    .withTag(io.opentracing.tag.Tags.SPAN_KIND.getKey(), io.opentracing.tag.Tags.SPAN_KIND_CLIENT)
    .withTag(io.opentracing.tag.Tags.HTTP_URL.getKey(), $0.getURL().toString())
    .withTag("http.query", $0.getURL().getQuery())
    .asChildOf(currentSpan())
    .start());
  getTracer().inject(retrieveSpan($0).context(), io.opentracing.propagation.Format$Builtin.HTTP_HEADERS,
    new io.opentracing.contrib.agent.jnet.propagation.HttpURLConnectionInjectAdapter($0));
ENDRULE

RULE java-net: Java HttpUrlConnection getResponseCode entry
CLASS java.net.HttpURLConnection
METHOD getResponseCode()
HELPER io.opentracing.contrib.agent.OpenTracingHelper
AT ENTRY
IF !$0.connected && retrieveSpan($0) == null && !ignore($0)
DO
  associateSpan($0, getTracer().buildSpan($0.getRequestMethod())
    .withTag(io.opentracing.tag.Tags.SPAN_KIND.getKey(), io.opentracing.tag.Tags.SPAN_KIND_CLIENT)
    .withTag(io.opentracing.tag.Tags.HTTP_URL.getKey(), $0.getURL().toString())
    .withTag("http.query", $0.getURL().getQuery())
    .asChildOf(currentSpan())
    .start());
  getTracer().inject(retrieveSpan($0).context(), io.opentracing.propagation.Format$Builtin.HTTP_HEADERS,
     new io.opentracing.contrib.agent.jnet.propagation.HttpURLConnectionInjectAdapter($0));
ENDRULE

RULE java-net: Java HttpUrlConnection getInputStream entry
CLASS ^java.net.HttpURLConnection
METHOD getInputStream()
HELPER io.opentracing.contrib.agent.OpenTracingHelper
AT ENTRY
IF !$0.connected && retrieveSpan($0) == null && !ignore($0)
DO
  associateSpan($0, getTracer().buildSpan($0.getRequestMethod())
    .withTag(io.opentracing.tag.Tags.SPAN_KIND.getKey(), io.opentracing.tag.Tags.SPAN_KIND_CLIENT)
    .withTag(io.opentracing.tag.Tags.HTTP_URL.getKey(), $0.getURL().toString())
    .withTag("http.query", $0.getURL().getQuery())
    .asChildOf(currentSpan())
    .start());
  getTracer().inject(retrieveSpan($0).context(), io.opentracing.propagation.Format$Builtin.HTTP_HEADERS,
    new io.opentracing.contrib.agent.jnet.propagation.HttpURLConnectionInjectAdapter($0));
ENDRULE

RULE java-net: Java HttpUrlConnection getOutputStream entry
CLASS ^java.net.HttpURLConnection
METHOD getOutputStream()
HELPER io.opentracing.contrib.agent.OpenTracingHelper
AT ENTRY
IF !$0.connected && retrieveSpan($0) == null && !ignore($0)
DO
  associateSpan($0, getTracer().buildSpan($0.getRequestMethod())
    .withTag(io.opentracing.tag.Tags.SPAN_KIND.getKey(), io.opentracing.tag.Tags.SPAN_KIND_CLIENT)
    .withTag(io.opentracing.tag.Tags.HTTP_URL.getKey(), $0.getURL().toString())
    .withTag("http.query", $0.getURL().getQuery())
    .asChildOf(currentSpan())
    .start());
  getTracer().inject(retrieveSpan($0).context(), io.opentracing.propagation.Format$Builtin.HTTP_HEADERS,
    new io.opentracing.contrib.agent.jnet.propagation.HttpURLConnectionInjectAdapter($0));
ENDRULE

# This rule catches connection refused exceptions
RULE java-net: Java HttpUrlConnection getInputStream exception exit
CLASS ^java.net.HttpURLConnection
METHOD getResponseCode()
HELPER io.opentracing.contrib.agent.OpenTracingHelper
BIND
  span : io.opentracing.Span = retrieveSpan($0);
AT EXCEPTION EXIT
IF span != null && !isFinished($0)
DO
  span.setTag(io.opentracing.tag.Tags.ERROR.getKey(), true)
    .finish();
  finishedSpan($0,span);
ENDRULE

RULE java-net: Java HttpUrlConnection getResponseCode exit (check for fault)
CLASS ^java.net.HttpURLConnection
METHOD getResponseCode()
HELPER io.opentracing.contrib.agent.OpenTracingHelper
BIND
  span : io.opentracing.Span = retrieveSpan($0);
AT EXIT
IF span != null && !isFinished($0) && $0.responseCode >= 400
DO
  span.setTag(io.opentracing.tag.Tags.ERROR.getKey(), true);
ENDRULE

RULE java-net: Java HttpUrlConnection getResponseCode exit
CLASS ^java.net.HttpURLConnection
METHOD getResponseCode()
HELPER io.opentracing.contrib.agent.OpenTracingHelper
BIND
  span : io.opentracing.Span = retrieveSpan($0);
AT EXIT
IF span != null && !isFinished($0)
DO
  span.setTag(io.opentracing.tag.Tags.HTTP_STATUS.getKey(), Integer.valueOf($0.responseCode))
    .finish();
  finishedSpan($0,span);
ENDRULE