Hi Solr Community,
I've been experimenting with Solr 4.0 (trunk) in order to test the SOLR-792
feature. I have written a test that shows what I'm trying to ask. Basically,
I'm creating a hierarchy of the area/city/neighbourhood. The problem that I
see is that for documents that have only 1 item in a particular hierarchy
(e.g. Greater London/Greenwich/Centre (which I've called
"Value_that_cant_be_matched in this example"...)), these are not found by
the pivot facet. If I add a second one, then it works. I'm puzzled why this
is the case.
This is the result of the Sytem.out that prints out the pivot facet fields
hierarchy (see line 86)
PIVOT: level1_loc_s,level2_loc_s,level3_loc_s
level1_loc_s=Greater London (8)
level2_loc_s=London (5)
level3_loc_s=Mayfair (3)
level3_loc_s=Hammersmith (2)
level2_loc_s=Greenwich (3)
level3_loc_s=Greenwich Centre (2)
//--> why isn't there a
"level3_loc_s=Value_that_cant_be_matched (1)" here?
level1_loc_s=Groot Amsterdam (5)
level2_loc_s=Amsterdam (3)
level3_loc_s=Jordaan (2)
level2_loc_s=Amstelveen (2)
level3_loc_s=Centrum (2)
How can I make sure that Solr would find in the tree the single document
when I facet on this "location" hierarchy?
Thank you very much for your help.
Nicolas
import java.io.IOException;
import java.net.MalformedURLException;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import org.apache.solr.client.solrj.SolrQuery;
import org.apache.solr.client.solrj.SolrServerException;
import org.apache.solr.client.solrj.impl.CommonsHttpSolrServer;
import org.apache.solr.client.solrj.response.PivotField;
import org.apache.solr.client.solrj.response.QueryResponse;
import org.apache.solr.common.SolrInputDocument;
import org.apache.solr.common.util.NamedList;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
/**
* This is a test for hiearchical faceting based on SOLR-792 (I basically
just checkout the trunk of Solr-4.0).
*
* Unit test that shows the particular behaviour that I'm experiencing.
* I would have expected that the doc (see line 95) with as level3_loc_s
"Value_that_cant_be_matched" would appear in the pivot. It seems that you
actually need at least 2!
*
* @author npeeters
*/
public class HierarchicalPivotTest {
CommonsHttpSolrServer server;
@Before
public void setup() throws MalformedURLException {
// the instance can be reused
this.server = new CommonsHttpSolrServer("http://localhost:8983/solr
");
this.server.setSoTimeout(500); // socket read timeout
this.server.setConnectionTimeout(100);
this.server.setDefaultMaxConnectionsPerHost(100);
this.server.setMaxTotalConnections(100);
this.server.setFollowRedirects(false); // defaults to false
// allowCompression defaults to false.
}
protected List createHierarchicalOrgData() {
int id = 1;
List docs = new ArrayList();
docs.add(makeTestDoc("id", id++, "name", "Organization " + id,
"level1_loc_s", "Groot Amsterdam", "level2_loc_s", "Amsterdam",
"level3_loc_s", "Centrum"));
docs.add(makeTestDoc("id", id++, "name", "Organization " + id,
"level1_loc_s", "Groot Amsterdam", "level2_loc_s", "Amsterdam",
"level3_loc_s", "Jordaan"));
docs.add(makeTestDoc("id", id++, "name", "Organization " + id,
"level1_loc_s", "Groot Amsterdam", "level2_loc_s", "Amsterdam",
"level3_loc_s", "Jordaan"));
docs.add(makeTestDoc("id", id++, "name", "Organization " + id,
"level1_loc_s", "Groot Amsterdam", "level2_loc_s", "Amstelveen",
"level3_loc_s", "Centrum"));
docs.add(makeTestDoc("id", id++, "name", "Organization " + id,
"level1_loc_s", "Groot Amsterdam", "level2_loc_s", "Amstelveen",
"level3_loc_s", "Centrum"));
docs.add(makeTestDoc("id", id++, "name", "Organization " + id,
"level1_loc_s", "Greater London", "level2_loc_s", "London", "level3_loc_s",
"Hammersmith"));
docs.add(makeTestDoc("id", id++, "name", "Organization " + id,
"level1_loc_s", "Greater London", "level2_loc_s", "London", "level3_loc_s",
"Hammersmith"));
docs.add(makeTestDoc("id", id++, "name", "Organization " + id,
"level1_loc_s", "Greater London", "level2_loc_s", "London", "level3_loc_s",
"Mayfair"));
docs.add(makeTestDoc("id", id++, "name", "Organization " + id,
"level1_loc_s", "Greater London", "level2_loc_s", "London", "level3_loc_s",
"Mayfair"));
docs.add(makeTestDoc("id", id++, "name", "Organization " + id,
"level1_loc_s", "Greater London", "level2_loc_s", "London", "level3_loc_s",
"Mayfair"));
docs.add(makeTestDoc("id", id++, "name", "Organization " + id,
"level1_loc_s", "Greater London", "level2_loc_s", "Greenwich",
"level3_loc_s", "Value_that_cant_be_matched"));
docs.add(makeTestDoc("id", id++, "name", "Organization " + id,
"level1_loc_s", "Greater London", "level2_loc_s", "Greenwich",
"level3_loc_s", "Greenwich Centre"));
docs.add(makeTe
