This plugin provides several response formats.
'org.codelibs:elasticsearch-dataformat:1.3.1'
<dependency>
<groupId>org.codelibs</groupId>
<artifactId>elasticsearch-dataformat</artifactId>
<version>1.3.1</version>
</dependency>
<dependency org="org.codelibs" name="elasticsearch-dataformat" rev="1.3.1"/>
"org.codelibs", "elasticsearch-dataformat", "1.3.1"