kafka/checkstyle/import-control-server-common.xml

<!DOCTYPE import-control PUBLIC
        "-//Puppy Crawl//DTD Import Control 1.1//EN"
        "http://www.puppycrawl.com/dtds/import_control_1_1.dtd">
<!--
 Licensed to the Apache Software Foundation (ASF) under one or more
 contributor license agreements.  See the NOTICE file distributed with
 this work for additional information regarding copyright ownership.
 The ASF licenses this file to You under the Apache License, Version 2.0
 (the "License"); you may not use this file except in compliance with
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    http://www.apache.org/licenses/LICENSE-2.0

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 See the License for the specific language governing permissions and
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-->

<import-control pkg="org.apache.kafka">

    <!-- THINK HARD ABOUT THE LAYERING OF THE PROJECT BEFORE CHANGING THIS FILE -->

    <!-- common library dependencies -->
    <allow pkg="java" />
    <allow pkg="javax.management" />
    <allow pkg="org.slf4j" />
    <allow pkg="org.junit" />
    <allow pkg="org.opentest4j" />
    <allow pkg="org.hamcrest" />
    <allow pkg="org.mockito" />
    <allow pkg="org.easymock" />
    <allow pkg="org.powermock" />
    <allow pkg="java.security" />
    <allow pkg="javax.net.ssl" />
    <allow pkg="javax.security" />
    <allow pkg="org.ietf.jgss" />
    <allow pkg="net.jqwik.api" />

    <!-- no one depends on the server -->
    <disallow pkg="kafka" />

    <!-- anyone can use public classes -->
    <allow pkg="org.apache.kafka.common" exact-match="true" />
    <allow pkg="org.apache.kafka.common.security" />
    <allow pkg="org.apache.kafka.common.serialization" />
    <allow pkg="org.apache.kafka.common.utils" />
    <allow pkg="org.apache.kafka.common.errors" exact-match="true" />
    <allow pkg="org.apache.kafka.common.memory" />

    <!-- persistent collection factories/non-library-specific wrappers -->
    <allow pkg="org.apache.kafka.server.immutable" exact-match="true" />

    <subpackage name="queue">
        <allow pkg="org.apache.kafka.test" />
    </subpackage>

    <subpackage name="server">
        <allow pkg="org.apache.kafka.common" />
        <allow pkg="joptsimple" />

        <subpackage name="common">
            <allow pkg="org.apache.kafka.server.common" />
        </subpackage>

        <subpackage name="immutable">
            <allow pkg="org.apache.kafka.server.util"/>
            <!-- only the factory package can use persistent collection library-specific wrapper implementations -->
            <!-- the library-specific wrapper implementation for PCollections -->
            <allow pkg="org.apache.kafka.server.immutable.pcollections" />
            <subpackage name="pcollections">
                <allow pkg="org.pcollections" />
            </subpackage>
        </subpackage>

        <subpackage name="metrics">
            <allow pkg="com.yammer.metrics" />
        </subpackage>

        <subpackage name="network">
            <allow pkg="org.apache.kafka.server.authorizer" />
        </subpackage>

        <!-- InterBrokerSendThread uses some clients classes that are not part of the public -->
        <!-- API but are still relatively common -->
        <subpackage name="util">
            <allow class="org.apache.kafka.clients.ClientRequest" />
            <allow class="org.apache.kafka.clients.ClientResponse" />
            <allow class="org.apache.kafka.clients.KafkaClient" />
            <allow class="org.apache.kafka.clients.RequestCompletionHandler" />
        </subpackage>
    </subpackage>

</import-control>