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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

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
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<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.apache.tinkerpop</groupId>
        <artifactId>tinkerpop</artifactId>
        <version>3.4.7-SNAPSHOT</version>
    </parent>
    <artifactId>hadoop-gremlin</artifactId>
    <name>Apache TinkerPop :: Hadoop Gremlin</name>
    <dependencyManagement>
        <dependencies>
            <dependency>
                <!-- see: https://github.com/apache/hadoop/pull/84 -->
                <groupId>io.netty</groupId>
                <artifactId>netty</artifactId>
                <version>3.7.1.Final</version>
            </dependency>
        </dependencies>
    </dependencyManagement>
    <dependencies>
        <dependency>
            <groupId>org.apache.tinkerpop</groupId>
            <artifactId>gremlin-core</artifactId>
            <version>${project.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.tinkerpop</groupId>
            <artifactId>gremlin-groovy</artifactId>
            <version>${project.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.hadoop</groupId>
            <artifactId>hadoop-client</artifactId>
            <version>${hadoop.version}</version>
            <exclusions>
                <exclusion>
                    <groupId>log4j</groupId>
                    <artifactId>log4j</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>org.slf4j</groupId>
                    <artifactId>slf4j-log4j12</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>org.slf4j</groupId>
                    <artifactId>slf4j-api</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>commons-codec</groupId>
                    <artifactId>commons-codec</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>org.apache.commons</groupId>
                    <artifactId>commons-compress</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>com.google.guava</groupId>
                    <artifactId>guava</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>commons-logging</groupId>
                    <artifactId>commons-logging</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>commons-io</groupId>
                    <artifactId>commons-io</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>org.codehaus.jackson</groupId>
                    <artifactId>jackson-mapper-asl</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>org.codehaus.jackson</groupId>
                    <artifactId>jackson-core-asl</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>org.xerial.snappy</groupId>
                    <artifactId>snappy-java</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>javax.servlet</groupId>
                    <artifactId>servlet-api</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>org.apache.commons</groupId>
                    <artifactId>commons-compress</artifactId>
                </exclusion>
            </exclusions>
            <!--<scope>provided</scope>-->
        </dependency>
        <!-- consistent dependencies -->
        <dependency>
            <groupId>commons-io</groupId>
            <artifactId>commons-io</artifactId>
        </dependency>
        <dependency>
            <groupId>commons-codec</groupId>
            <artifactId>commons-codec</artifactId>
        </dependency>
        <dependency>
            <groupId>commons-logging</groupId>
            <artifactId>commons-logging</artifactId>
            <version>1.1.3</version>
        </dependency>
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-compress</artifactId>
            <version>1.19</version>
        </dependency>
        <dependency>
            <groupId>com.google.guava</groupId>
            <artifactId>guava</artifactId>
            <version>16.0.1</version>
        </dependency>
        <dependency>
            <groupId>org.codehaus.jackson</groupId>
            <artifactId>jackson-mapper-asl</artifactId>
            <version>1.9.13</version>
        </dependency>
        <dependency>
            <groupId>org.codehaus.jackson</groupId>
            <artifactId>jackson-core-asl</artifactId>
            <version>1.9.13</version>
        </dependency>
        <dependency>
            <groupId>org.xerial.snappy</groupId>
            <artifactId>snappy-java</artifactId>
            <version>1.1.1.7</version>
        </dependency>
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <version>3.1.0</version>
        </dependency>
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-compress</artifactId>
            <version>1.19</version>
        </dependency>
        <!-- TEST -->
        <dependency>
            <groupId>org.apache.tinkerpop</groupId>
            <artifactId>gremlin-test</artifactId>
            <version>${project.version}</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.apache.tinkerpop</groupId>
            <artifactId>tinkergraph-gremlin</artifactId>
            <version>${project.version}</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-log4j12</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>
    <build>
        <directory>${basedir}/target</directory>
        <finalName>${project.artifactId}-${project.version}</finalName>
        <resources>
            <resource>
                <directory>${basedir}/src/main/resources</directory>
            </resource>
        </resources>
        <testResources>
            <testResource>
                <directory>${basedir}/src/test/resources</directory>
            </testResource>
        </testResources>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-jar-plugin</artifactId>
                <configuration>
                    <archive>
                        <manifestEntries>
                            <Gremlin-Plugin-Dependencies>org.apache.hadoop:hadoop-client:${hadoop.version}
                            </Gremlin-Plugin-Dependencies>
                        </manifestEntries>
                    </archive>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-assembly-plugin</artifactId>
                <executions>
                    <execution>
                        <id>build-detached-assemblies</id>
                        <phase>package</phase>
                        <goals>
                            <goal>single</goal>
                        </goals>
                        <configuration>
                            <attach>false</attach>
                            <descriptors>
                                <descriptor>src/assembly/standalone.xml</descriptor>
                                <descriptor>src/assembly/hadoop-job.xml</descriptor>
                            </descriptors>
                            <finalName>${project.artifactId}-${project.version}</finalName>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-surefire-plugin</artifactId>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-failsafe-plugin</artifactId>
            </plugin>

            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-enforcer-plugin</artifactId>
                <executions>
                    <execution>
                        <id>check-hadoop-installed</id>
                        <phase>test-compile</phase>
                        <goals>
                            <goal>enforce</goal>
                        </goals>
                        <configuration>
                            <rules>
                                <requireEnvironmentVariable>
                                     <level>WARN</level>
                                     <variableName>HADOOP_HOME</variableName>
                                     <message>Please install Hadoop ${hadoop.version} standalone and set HADOOP_HOME OS environment variable</message>
                                </requireEnvironmentVariable>
                                <requireEnvironmentVariable>
                                     <level>WARN</level>
                                     <variableName>HADOOP_GREMLIN_LIBS</variableName>
                                     <message>Please set HADOOP_GREMLIN_LIBS OS environment variable as of http://tinkerpop.apache.org/docs/current/reference/#hadoop-gremlin&#x000A;HADOOP_GREMLIN_LIBS=&lt;hadoop installation dir&gt;/share/hadoop/common/lib seems good enough
                                     </message>
                                </requireEnvironmentVariable>
                            </rules>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>
</project>