In solr dih import two double in one location

问题

What I have now is the two double filds:

<field name="x_geo_x_coordinate" type="double" indexed="true" stored="true" default="0"/> 
<field name="x_geo_y_coordinate" type="double" indexed="true" stored="true" default="0"/>

and what I want: the 2 double value in one location field:

<field name="x_geo" type="location" indexed="true" stored="true" default="0.0,0.0"/>

What I tried so far and does't work:

<copyField source="*_coordinate" dest="x_geo"/>
<copyField source="x_geo_str" dest="x_geo"/>

Any simple solution? Thanks in advance!

回答1:

Well, you where right @nikhil500. ScriptTransformer is one answer, (I'm not sure if this is the simpliest). The dataconfig.xml contains a java function:

<script><![CDATA[
            function puttwodouble(row)        {
                var attrVal1 = row.get("GEO_X_WERT");
                var attrVal2 = row.get("GEO_Y_WERT");
                var attrVal = attrVal1 + "," + attrVal2;
                var arr = new java.util.ArrayList()
                arr.add(attrVal1);
                arr.add(attrVal2);
                row.put("store",attrVal);
                row.put("x_geo_str",arr);  
                return row;
            }
]]>

whitch will be called:

 <entity name="inner_geo_str" transformer="script:puttwodouble"
            query="select GEO_X_WERT, GEO_Y_WERT from FIRMA_GEODATEN where GEO_FIR_NR ='${outer.FIR_NR}' and geo_x_wert != 'NF'">                     
                  <field column="GEO_X_WERT" name="x_geo_x_s"/> 
                  <field column="GEO_Y_WERT" name="x_geo_y_s"/>                     
          </entity>

Hope that will help others to solve this kind of problem.

回答2:

Use TemplateTransformer in DIH (data-config.xml):

<entity name="p" transformer="TemplateTransformer" ......
<field column="location" template="${p.location_0_coordinate},${p.location_1_coordinate}" />

回答3:

In addition to PaulG's answer , you can use location_rpt in Solr 4, which supports multi values, but doesn't need to be declared as MultiValue.

<field name="region" type="location_rpt" indexed="true" stored="true" />

回答4:

You can use ScriptTransformer to create x_geo field.

来源：https://stackoverflow.com/questions/8134958/in-solr-dih-import-two-double-in-one-location

标签

solr

geolocation

dih

geohashing