如何将OpenTSDB源码导入eclipse

<!--
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-gpg-plugin</artifactId>
        <version>1.4</version>
        <executions>
         <execution>
            <id>sign-artifacts</id>
            <phase>verify</phase>
            <goals>
              <goal>sign</goal>
            </goals>
          </execution>
        </executions>
        <configuration>
          <keyname>oss@stumbleupon.com</keyname>
        </configuration>
      </plugin>
-->