[SOLR-10865] parameter processor=Template doesn't invoke TemplateUpdateProcessorFactory.

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 7.0
• Component/s: update
• Assignee: Noble Paul
• Reporter: Amrit Sarkar
• Created: 10/Jun/17 07:49
• Updated: 02/Oct/19 17:24
• Resolved: 14/Jun/17 09:07

Description

Ref docs::

The TemplateUpdateProcessorFactory can be used to add new fields to documents based on a template pattern.
This can be used directly in a request without any configuration. To enable this processor, use the parameter processor=Template.

Sample curl::

curl -X POST -H 'Content-Type:application/json' 'http://localhost:8983/solr/gettingstarted/update/json/docs?processor=Template&Template.field=fullName_s:AmritSarkar&commit=true' --data-binary '{"id": 1,"title": "titleA"}'

I am receiving exception::

<?xml version="1.0" encoding="UTF-8"?>
<response>
<lst name="responseHeader"><int name="status">400</int><int name="QTime">3</int></lst><lst name="error"><lst name="metadata"><str name="error-class">org.apache.solr.common.SolrException</str><str name="root-error-class">org.apache.solr.common.SolrException</str></lst><str name="msg">No such processor Template</str><int name="code">400</int></lst>
</response>

ERROR - 2017-06-10 07:39:51.598; [c:gettingstarted s:shard2 r:core_node1 x:gettingstarted_shard2_replica_n1] org.apache.solr.common.SolrException; org.apache.solr.common.SolrException: No such processor Template
	at org.apache.solr.update.processor.UpdateRequestProcessorChain.getReqProcessors(UpdateRequestProcessorChain.java:286)
	at org.apache.solr.update.processor.UpdateRequestProcessorChain.constructChain(UpdateRequestProcessorChain.java:235)

I looked into how the testclass has been created::

TemplateUpdateProcessorTest::

  public void testSimple() throws Exception {
    AddUpdateCommand cmd = new AddUpdateCommand(new LocalSolrQueryRequest(null,
        new ModifiableSolrParams()
            .add("processor", "Template")
            .add("Template.field", "id:${firstName}_${lastName}")
            .add("Template.field", "another:${lastName}_${firstName}")
            .add("Template.field", "missing:${lastName}_${unKnown}")
    ));
    cmd.solrDoc = new SolrInputDocument();
    cmd.solrDoc.addField("firstName", "Tom");
    cmd.solrDoc.addField("lastName", "Cruise");

    new TemplateUpdateProcessorFactory().getInstance(cmd.getReq(), new SolrQueryResponse(), null).processAdd(cmd);
    assertEquals("Tom_Cruise", cmd.solrDoc.getFieldValue("id"));
    assertEquals("Cruise_Tom", cmd.solrDoc.getFieldValue("another"));
    assertEquals("Cruise_", cmd.solrDoc.getFieldValue("missing"));
  }

There is no test to check whether processor=Template works or not, TemplateUpdateProcessorFactory() object is EXPLICITLY created to getInstance and do processing on the updates.

Issue Links

• is a clone of: SOLR-10876 Regression in loading runtime UpdateRequestProcessors