D-Net

<workflow-app xmlns="uri:oozie:workflow:0.4" name="transformers_ingest_citations">

	<parameters>

		<property>

            <name>input</name>

            <description>input containing document metadata records</description>

        </property>

        <property>

            <name>output</name>

            <description>extracted citations</description>

        </property>

	</parameters>

    <start to="generate-schema"/>

    <action name="generate-schema">

	    <java>

    		<job-tracker>${jobTracker}</job-tracker>

        	<name-node>${nameNode}</name-node>

	        <main-class>eu.dnetlib.iis.core.javamapreduce.hack.AvroSchemaGenerator</main-class>

	        <arg>eu.dnetlib.iis.citationmatching.direct.schemas.DocumentMetadata</arg>

	        <arg>eu.dnetlib.iis.citationmatching.direct.schemas.Citation</arg>

	        <capture-output />

	    </java>

	    <ok to="transformer" />

	    <error to="fail" />

	</action>

    <action name="transformer">

        <pig>

            <job-tracker>${jobTracker}</job-tracker>

            <name-node>${nameNode}</name-node>

			<!-- The data generated by this node is deleted in this section -->

			<prepare>

				<delete path="${nameNode}${output}" />

			</prepare>

            <configuration>

                <property>

                    <name>mapred.job.queue.name</name>

                    <value>${queueName}</value>

                </property>

            </configuration>

            <!-- Path to PIG script the workflow executes. -->

            <script>lib/scripts/transformer/transformer.pig</script>

            <param>input=${input}</param>

            <param>schema_input=${wf:actionData('generate-schema')['eu.dnetlib.iis.citationmatching.direct.schemas.DocumentMetadata']}</param>

            <param>output=${output}</param>

            <param>schema_output=${wf:actionData('generate-schema')['eu.dnetlib.iis.citationmatching.direct.schemas.Citation']}</param>

        </pig>

        <ok to="end"/>

        <error to="fail"/>

    </action>

    <kill name="fail">

		<message>Unfortunately, the workflow failed -- error message:

			[${wf:errorMessage(wf:lastErrorNode())}]</message>

    </kill>

    <end name="end"/>

</workflow-app>