<?xml version="1.0"?>
<!DOCTYPE import-control PUBLIC
    "-//Puppy Crawl//DTD Import Control 1.3//EN"
    "http://checkstyle.sourceforge.net/dtds/import_control_1_3.dtd">

<!--

General guidelines on imports:

- 'stats' depends on 'tags', but 'tags' shouldn't depend on 'stats' or 'trace'.
  'stats'/'tags' and 'trace' should remain independent, where possible.

- Packages should not be split between artifacts.

- 'internal' packages should only be imported by packages within the same
  artifact.

- Since we are trying to remove dependencies on Guava (issue #1113), we should
  avoid adding any new Guava imports here, especially in the API.

-->

<import-control pkg="io.opencensus">
  <allow pkg="com.google.auto.value"/>
  <allow pkg="com.google.errorprone.annotations"/>
  <allow pkg="java"/>
  <allow pkg="javax"/>
  <allow class="io.grpc.Context"/>
  <subpackage name="common">
    <allow pkg="io.opencensus.common"/>
  </subpackage>
  <subpackage name="internal">
    <allow pkg="io.opencensus.common"/>
    <allow pkg="io.opencensus.internal"/>
  </subpackage>
  <subpackage name="tags">
    <allow pkg="io.opencensus.common"/>
    <allow pkg="io.opencensus.internal"/>
    <allow pkg="io.opencensus.tags"/>
  </subpackage>
  <subpackage name="metrics">
    <allow pkg="io.opencensus.internal"/>
    <allow pkg="io.opencensus.common"/>
    <allow pkg="io.opencensus.metrics"/>
  </subpackage>
  <subpackage name="stats">
    <allow pkg="io.opencensus.common"/>
    <allow pkg="io.opencensus.internal"/>
    <allow pkg="io.opencensus.stats"/>
    <allow pkg="io.opencensus.tags"/>
  </subpackage>
  <subpackage name="trace">
    <allow pkg="io.opencensus.common"/>
    <allow pkg="io.opencensus.internal"/>
    <allow pkg="io.opencensus.trace"/>

    <!-- These dependencies on impl/implcore are only needed by -->
    <!-- io.opencensus.trace.TraceComponentImpl and io.opencensus.trace.TraceComponentImplLite, -->
    <!-- which are deprecated. -->
    <allow class="io.opencensus.impl.internal.DisruptorEventQueue"/>
    <allow class="io.opencensus.impl.trace.internal.ThreadLocalRandomHandler"/>
    <allow class="io.opencensus.implcore.common.MillisClock"/>
    <allow class="io.opencensus.implcore.internal.SimpleEventQueue"/>
    <allow class="io.opencensus.implcore.trace.TraceComponentImplBase"/>
    <allow class="io.opencensus.implcore.trace.internal.RandomHandler.SecureRandomHandler"/>
  </subpackage>
  <subpackage name="contrib">
    <allow pkg="com.google.common"/>
    <allow pkg="io.opencensus.common"/>
    <subpackage name="agent">
      <allow pkg="com.google.auto"/>
      <allow pkg="com.typesafe.config"/>
      <allow pkg="edu.umd.cs.findbugs.annotations"/>
      <allow pkg="io.opencensus.contrib.agent"/>
      <allow pkg="io.opencensus.trace"/>
      <allow pkg="net.bytebuddy"/>
    </subpackage>
    <subpackage name="appengine.standard.util">
      <allow pkg="com.google.apphosting"/>
      <allow pkg="io.opencensus.trace"/>
    </subpackage>
    <subpackage name="exemplar.util">
      <allow pkg="io.opencensus.stats"/>
      <allow pkg="io.opencensus.trace"/>
    </subpackage>
    <subpackage name="grpc.metrics">
      <allow pkg="io.opencensus.contrib.grpc.metrics"/>
      <allow pkg="io.opencensus.stats"/>
      <allow pkg="io.opencensus.tags"/>
    </subpackage>
    <subpackage name="http.util">
      <allow pkg="io.opencensus.contrib.http.util"/>
      <allow pkg="io.opencensus.stats"/>
      <allow pkg="io.opencensus.tags"/>
      <allow pkg="io.opencensus.trace"/>
    </subpackage>
    <subpackage name="logcorrelation.log4j2">
      <allow pkg="io.opencensus.contrib.logcorrelation.log4j2"/>
      <allow pkg="io.opencensus.trace"/>
      <disallow pkg="org.apache.logging.log4j.core.impl"/>
      <allow pkg="org.apache.logging.log4j"/>
    </subpackage>
    <subpackage name="logcorrelation.stackdriver">
      <allow pkg="com.google.cloud"/>
      <allow pkg="io.opencensus.trace"/>
    </subpackage>
    <subpackage name="spring">
      <allow pkg="io.opencensus.trace"/>
      <allow pkg="org.aspectj.lang"/>
      <allow pkg="org.aspectj.lang.annotation"/>
      <allow pkg="org.aspectj.lang.reflect"/>
      <allow pkg="org.springframework.beans.factory.annotation"/>
      <subpackage name="sleuth">
        <allow pkg="io.opencensus.trace"/>
        <allow pkg="org.apache.commons.logging"/>
        <allow pkg="org.springframework.beans.factory.annotation"/>
        <allow pkg="org.springframework.beans.factory.config"/>
        <allow pkg="org.springframework.boot.autoconfigure"/>
        <allow pkg="org.springframework.boot.context"/>
        <allow pkg="org.springframework.context.annotation"/>
        <allow pkg="org.springframework.boot.context.properties"/>
        <allow pkg="org.springframework.cloud.sleuth"/>
        <allow pkg="org.springframework.core"/>
      </subpackage>
    </subpackage>
    <subpackage name="zpages">
      <allow pkg="com.sun.net.httpserver"/>
      <allow pkg="io.opencensus.contrib.grpc.metrics"/>
      <allow pkg="io.opencensus.contrib.zpages"/>
      <allow pkg="io.opencensus.stats"/>
      <allow pkg="io.opencensus.tags"/>
      <allow pkg="io.opencensus.trace"/>
    </subpackage>
    <subpackage name="monitoredresource.util">
      <allow pkg="io.opencensus.contrib.monitoredresource.util"/>
    </subpackage>
    <subpackage name="dropwizard">
      <allow pkg="io.opencensus.contrib.dropwizard"/>
      <allow pkg="io.opencensus.metrics"/>
      <allow pkg="io.opencensus.implcore"/>
      <allow pkg="io.opencensus.internal"/>
      <allow pkg="com.codahale.metrics"/>
    </subpackage>
  </subpackage>
  <subpackage name="exporter">
    <allow pkg="com.google.common"/>
    <allow pkg="io.opencensus.common"/>
    <subpackage name="stats">
      <allow pkg="io.opencensus.stats"/>
      <allow pkg="io.opencensus.tags"/>
      <subpackage name="prometheus">
        <allow pkg="io.opencensus.exporter.stats.prometheus"/>
        <allow pkg="io.opencensus.trace"/>
        <allow pkg="io.prometheus.client"/>
      </subpackage>
      <subpackage name="signalfx">
        <allow pkg="com.signalfx"/>
        <allow pkg="io.opencensus.exporter.stats.signalfx"/>
        <allow pkg="io.opencensus.trace"/>
      </subpackage>
      <subpackage name="stackdriver">
        <allow pkg="com.google"/>
        <allow pkg="io.opencensus.exporter.stats.stackdriver"/>
        <allow pkg="io.opencensus.trace"/>
        <allow pkg="io.opencensus.contrib.monitoredresource.util"/>
      </subpackage>
    </subpackage>
    <subpackage name="trace">
      <allow pkg="io.opencensus.trace"/>
      <subpackage name="instana">
        <allow pkg="io.opencensus.exporter.trace.instana"/>
      </subpackage>
      <subpackage name="jaeger">
        <allow pkg="com.uber.jaeger"/>
        <allow pkg="io.opencensus.exporter.trace.jaeger"/>
        <allow pkg="org.apache.thrift"/>
      </subpackage>
      <subpackage name="ocagent">
        <allow pkg="com.google.protobuf"/>
        <allow pkg="io.grpc"/>
        <allow pkg="io.opencensus.contrib.monitoredresource.util"/>
        <allow pkg="io.opencensus.contrib.opencensus.proto.util"/>
        <allow pkg="io.opencensus.exporter.trace.ocagent"/>
        <allow pkg="io.opencensus.proto"/>
        <allow pkg="io.opencensus.trace"/>
      </subpackage>
      <subpackage name="stackdriver">
        <allow pkg="com.google"/>
        <allow pkg="io.opencensus.exporter.trace.stackdriver"/>
        <allow pkg="io.opencensus.contrib.monitoredresource.util"/>
      </subpackage>
      <subpackage name="zipkin">
        <allow pkg="io.opencensus.exporter.trace.zipkin"/>
        <allow pkg="zipkin2"/>
      </subpackage>
    </subpackage>
  </subpackage>
  <subpackage name="implcore">
    <allow pkg="com.google.common"/>
    <allow pkg="io.opencensus.common"/>
    <allow pkg="io.opencensus.implcore"/>
    <allow pkg="io.opencensus.metrics"/>
    <allow pkg="io.opencensus.stats"/>
    <allow pkg="io.opencensus.tags"/>
    <allow pkg="io.opencensus.trace"/>
  </subpackage>
  <subpackage name="impl">
    <allow pkg="com.lmax.disruptor"/>
    <allow pkg="io.opencensus.common"/>
    <allow pkg="io.opencensus.impl"/>
    <allow pkg="io.opencensus.implcore"/>
    <allow pkg="io.opencensus.metrics"/>
    <allow pkg="io.opencensus.stats"/>
    <allow pkg="io.opencensus.tags"/>
    <allow pkg="io.opencensus.trace"/>
  </subpackage>
  <subpackage name="impllite">
    <allow pkg="io.opencensus.common"/>
    <allow pkg="io.opencensus.implcore"/>
    <allow pkg="io.opencensus.impllite"/>
    <allow pkg="io.opencensus.metrics"/>
    <allow pkg="io.opencensus.stats"/>
    <allow pkg="io.opencensus.tags"/>
    <allow pkg="io.opencensus.trace"/>
  </subpackage>
  <subpackage name="testing">
    <allow pkg="com.google.common"/>
    <allow pkg="io.opencensus.common"/>
    <subpackage name="common">
      <allow pkg="io.opencensus.testing.common"/>
    </subpackage>
    <subpackage name="export">
      <allow pkg="io.opencensus.stats"/>
      <allow pkg="io.opencensus.tags"/>
      <allow pkg="io.opencensus.testing.export"/>
      <allow pkg="io.opencensus.trace"/>
    </subpackage>
  </subpackage>
  <subpackage name="examples">
    <allow pkg="com.google.common"/>
    <allow pkg="io.grpc"/>
    <allow pkg="io.opencensus.common"/>
    <allow pkg="io.opencensus.contrib"/>
    <allow pkg="io.opencensus.examples"/>
    <allow pkg="io.opencensus.exporter"/>
    <allow pkg="io.opencensus.stats"/>
    <allow pkg="io.opencensus.tags"/>
    <allow pkg="io.opencensus.testing.export"/>
    <allow pkg="io.opencensus.trace"/>
    <allow pkg="io.prometheus"/>
  </subpackage>
</import-control>