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The Registry provides provides the PDS-specific search protocol and the search capability for the PDS search index generated through the Search Core software. The core functionality for this service is satisfied by Apache Solr.
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<?xml version="1.0" encoding="UTF-8" ?> <!-- Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file to You under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. --> <!-- For more details about configurations options that may appear in this file, see http://wiki.apache.org/solr/SolrConfigXml. --> <config> <luceneMatchVersion>7.7.0</luceneMatchVersion> <lib dir="${solr.install.dir:../../../..}/contrib/extraction/lib" regex=".*\.jar" /> <lib dir="${solr.install.dir:../../../..}/dist/" regex="solr-cell-\d.*\.jar" /> <lib dir="${solr.install.dir:../../../..}/contrib/clustering/lib/" regex=".*\.jar" /> <lib dir="${solr.install.dir:../../../..}/dist/" regex="solr-clustering-\d.*\.jar" /> <lib dir="${solr.install.dir:../../../..}/contrib/langid/lib/" regex=".*\.jar" /> <lib dir="${solr.install.dir:../../../..}/dist/" regex="solr-langid-\d.*\.jar" /> <lib dir="${solr.install.dir:../../../..}/contrib/velocity/lib" regex=".*\.jar" /> <lib dir="${solr.install.dir:../../../..}/dist/" regex="solr-velocity-\d.*\.jar" /> <lib dir="${solr.install.dir:../../../..}/contrib/pds/lib/" regex="registry-\d.*\.jar" /> <dataDir>${solr.data.dir:}</dataDir> <directoryFactory name="DirectoryFactory" class="${solr.directoryFactory:solr.NRTCachingDirectoryFactory}"/> <codecFactory class="solr.SchemaCodecFactory"/> <indexConfig> <lockType>${solr.lock.type:native}</lockType> </indexConfig> <jmx /> <updateHandler class="solr.DirectUpdateHandler2"> <updateLog> <str name="dir">${solr.ulog.dir:}</str> <int name="numVersionBuckets">${solr.ulog.numVersionBuckets:65536}</int> </updateLog> <autoCommit> <maxTime>${solr.autoCommit.maxTime:15000}</maxTime> <openSearcher>false</openSearcher> </autoCommit> <autoSoftCommit> <maxTime>${solr.autoSoftCommit.maxTime:-1}</maxTime> </autoSoftCommit> </updateHandler> <query> <maxBooleanClauses>1024</maxBooleanClauses> <filterCache class="solr.FastLRUCache" size="512" initialSize="512" autowarmCount="0"/> <queryResultCache class="solr.LRUCache" size="512" initialSize="512" autowarmCount="0"/> <documentCache class="solr.LRUCache" size="512" initialSize="512" autowarmCount="0"/> <!-- custom cache currently used by block join --> <cache name="perSegFilter" class="solr.search.LRUCache" size="10" initialSize="0" autowarmCount="10" regenerator="solr.NoOpRegenerator" /> <enableLazyFieldLoading>true</enableLazyFieldLoading> <queryResultWindowSize>20</queryResultWindowSize> <queryResultMaxDocsCached>200</queryResultMaxDocsCached> <!-- QuerySenderListener takes an array of NamedList and executes a local query request for each NamedList in sequence. --> <listener event="newSearcher" class="solr.QuerySenderListener"> <arr name="queries"> <!-- <lst><str name="q">solr</str><str name="sort">price asc</str></lst> <lst><str name="q">rocks</str><str name="sort">weight asc</str></lst> --> </arr> </listener> <listener event="firstSearcher" class="solr.QuerySenderListener"> <arr name="queries"> <!-- <lst> <str name="q">static firstSearcher warming in solrconfig.xml</str> </lst> --> </arr> </listener> <!-- Use Cold Searcher If a search request comes in and there is no current registered searcher, then immediately register the still warming searcher and use it. If "false" then all requests will block until the first searcher is done warming. --> <useColdSearcher>false</useColdSearcher> </query> <!-- Request Dispatcher This section contains instructions for how the SolrDispatchFilter should behave when processing requests for this SolrCore. --> <requestDispatcher> <httpCaching never304="true" /> </requestDispatcher> <requestHandler name="/select" class="solr.SearchHandler"> <!-- default values for query parameters can be specified, these will be overridden by parameters in the request --> <lst name="defaults"> <str name="echoParams">explicit</str> <int name="rows">10</int> <!-- Default search field --> <str name="df">text</str> <!-- --> <str name="wt">json</str> </lst> <!-- In addition to defaults, "appends" params can be specified to identify values which should be appended to the list of multi-val params from the query (or the existing "defaults"). --> <!-- In this example, the param "fq=instock:true" would be appended to any query time fq params the user may specify, as a mechanism for partitioning the index, independent of any user selected filtering that may also be desired (perhaps as a result of faceted searching). NOTE: there is *absolutely* nothing a client can do to prevent these "appends" values from being used, so don't use this mechanism unless you are sure you always want it. --> <!-- <lst name="appends"> <str name="fq">inStock:true</str> </lst> --> <!-- "invariants" are a way of letting the Solr maintainer lock down the options available to Solr clients. Any params values specified here are used regardless of what values may be specified in either the query, the "defaults", or the "appends" params. In this example, the facet.field and facet.query params would be fixed, limiting the facets clients can use. Faceting is not turned on by default - but if the client does specify facet=true in the request, these are the only facets they will be able to see counts for; regardless of what other facet.field or facet.query params they may specify. NOTE: there is *absolutely* nothing a client can do to prevent these "invariants" values from being used, so don't use this mechanism unless you are sure you always want it. --> <!-- <lst name="invariants"> <str name="facet.field">cat</str> <str name="facet.field">manu_exact</str> <str name="facet.query">price:[* TO 500]</str> <str name="facet.query">price:[500 TO *]</str> </lst> --> <!-- If the default list of SearchComponents is not desired, that list can either be overridden completely, or components can be prepended or appended to the default list. (see below) --> <!-- <arr name="components"> <str>nameOfCustomComponent1</str> <str>nameOfCustomComponent2</str> </arr> --> </requestHandler> <requestHandler name="/search" class="gov.nasa.pds.search.PDSSearchProtocol" default="true"> <!-- could eventually move this to initParams if desired --> <lst name="defaults"> <str name="df">text</str> <str name="echoParams">explicit</str> <str name="defType">edismax</str> <str name="q.alt">*:*</str> <str name="fl">*,score</str> <str name="wt">json</str> <str name="start">0</str> <str name="rows">50</str> <!-- Facets --> <str name="facet">true</str> <str name="facet.mincount">1</str> <!-- Aliases --> <str name="f.product-class.qf">product_class</str> <str name="f.instrument.qf">instrument_name</str> <str name="f.instrument-type.qf">instrument_type</str> <str name="f.instrument-host.qf">instrument_host_name</str> <str name="f.instrument-host-type.qf">instrument_host_type</str> <str name="f.investigation.qf">investigation_name</str> <str name="f.target.qf">target_name</str> <str name="f.target-type.qf">target_type</str> <str name="f.observing-system.qf">observing_system_name</str> </lst> <arr name="last-components"> <str>spellcheck</str> </arr> </requestHandler> <!-- PDAP --> <requestHandler name="/pdap" class="gov.nasa.pds.search.PDAPHandler" default="false"> <lst name="defaults"> <str name="df">text</str> <str name="echoParams">explicit</str> <str name="wt">velocity</str> <str name="v.template">pdap-results</str> <str name="v.layout">pdap</str> <str name="defType">edismax</str> <str name="q.alt">*:*</str> <str name="rows">50</str> <str name="fl">*,score</str> </lst> </requestHandler> <!-- Latest --> <requestHandler name="/latest" class="gov.nasa.pds.search.PDSSearchProtocol" default="false"> <lst name="defaults"> <str name="df">text</str> <str name="echoParams">explicit</str> <str name="defType">edismax</str> <str name="q.alt">*:*</str> <str name="fl">*,score</str> <str name="wt">json</str> <str name="start">0</str> <str name="rows">50</str> <!-- Facets --> <str name="facet">true</str> <str name="facet.mincount">1</str> <!-- Aliases --> <str name="f.product-class.qf">product_class</str> <str name="f.instrument.qf">instrument_name</str> <str name="f.instrument-type.qf">instrument_type</str> <str name="f.instrument-host.qf">instrument_host_name</str> <str name="f.instrument-host-type.qf">instrument_host_type</str> <str name="f.investigation.qf">investigation_name</str> <str name="f.target.qf">target_name</str> <str name="f.target-type.qf">target_type</str> <str name="f.observing-system.qf">observing_system_name</str> <!-- Latest product versions --> <str name="fq">{!collapse field=lid max=version_id}</str> </lst> <arr name="last-components"> <str>spellcheck</str> </arr> </requestHandler> <!-- Dataset --> <requestHandler name="/dataset" class="gov.nasa.pds.search.PDSSearchProtocol" default="false"> <lst name="defaults"> <str name="df">text</str> <str name="echoParams">explicit</str> <str name="defType">edismax</str> <str name="q.alt">*:*</str> <str name="fl">*,score</str> <str name="wt">json</str> <str name="start">0</str> <str name="rows">50</str> <str name="facet">true</str> <str name="facet.mincount">1</str> <!-- Latest product versions --> <str name="fq">{!collapse field=lid max=version_id}</str> </lst> <lst name="appends"> <str name="fq">(product_class:Product_Collection AND collection_type:Data) OR product_class:Product_Data_Set_PDS3</str> </lst> <arr name="last-components"> <str>spellcheck</str> </arr> </requestHandler> <!-- Context --> <requestHandler name="/context" class="gov.nasa.pds.search.PDSSearchProtocol" default="false"> <lst name="defaults"> <str name="df">text</str> <str name="echoParams">explicit</str> <str name="defType">edismax</str> <str name="q.alt">*:*</str> <str name="fl">*,score</str> <str name="wt">json</str> <str name="start">0</str> <str name="rows">50</str> <!-- Facets --> <str name="facet">true</str> <str name="facet.mincount">1</str> <!-- Aliases --> <str name="f.product-class.qf">product_class</str> <str name="f.instrument.qf">instrument_name</str> <str name="f.instrument-type.qf">instrument_type</str> <str name="f.instrument-host.qf">instrument_host_name</str> <str name="f.instrument-host-type.qf">instrument_host_type</str> <str name="f.investigation.qf">investigation_name</str> <str name="f.target.qf">target_name</str> <str name="f.target-type.qf">target_type</str> <str name="f.observing-system.qf">observing_system_name</str> <!-- Latest product versions --> <str name="fq">{!collapse field=lid max=version_id}</str> </lst> <lst name="appends"> <str name="fq">product_class:Product_Context</str> </lst> <arr name="last-components"> <str>spellcheck</str> </arr> </requestHandler> <!-- A request handler that returns indented JSON by default --> <requestHandler name="/query" class="solr.SearchHandler"> <lst name="defaults"> <str name="echoParams">explicit</str> <str name="wt">json</str> <str name="indent">true</str> </lst> </requestHandler> <!-- A Robust Example This example SearchHandler declaration shows off usage of the SearchHandler with many defaults declared Note that multiple instances of the same Request Handler (SearchHandler) can be registered multiple times with different names (and different init parameters) --> <requestHandler name="/browse" class="solr.SearchHandler" useParams="query,facets,velocity,browse"> <lst name="defaults"> <str name="echoParams">explicit</str> </lst> </requestHandler> <initParams path="/update/**,/query,/select,/tvrh,/elevate,/spell,/browse"> <lst name="defaults"> <str name="df">_text_</str> <str name="update.chain">generateLIDVID</str> </lst> </initParams> <!-- Solr Cell Update Request Handler http://wiki.apache.org/solr/ExtractingRequestHandler --> <requestHandler name="/update/extract" startup="lazy" class="solr.extraction.ExtractingRequestHandler" > <lst name="defaults"> <str name="lowernames">true</str> <str name="fmap.meta">ignored_</str> <str name="fmap.content">_text_</str> </lst> </requestHandler> <!-- Search Components --> <!-- Spell Check The spell check component can return a list of alternative spelling suggestions. http://wiki.apache.org/solr/SpellCheckComponent --> <searchComponent name="spellcheck" class="solr.SpellCheckComponent"> <str name="queryAnalyzerFieldType">text_general</str> <!-- a spellchecker built from a field of the main index --> <lst name="spellchecker"> <str name="name">default</str> <str name="field">_text_</str> <str name="classname">solr.DirectSolrSpellChecker</str> <!-- the spellcheck distance measure used, the default is the internal levenshtein --> <str name="distanceMeasure">internal</str> <!-- minimum accuracy needed to be considered a valid spellcheck suggestion --> <float name="accuracy">0.5</float> <!-- the maximum #edits we consider when enumerating terms: can be 1 or 2 --> <int name="maxEdits">2</int> <!-- the minimum shared prefix when enumerating terms --> <int name="minPrefix">1</int> <!-- maximum number of inspections per result. --> <int name="maxInspections">5</int> <!-- minimum length of a query term to be considered for correction --> <int name="minQueryLength">4</int> <!-- maximum threshold of documents a query term can appear to be considered for correction --> <float name="maxQueryFrequency">0.01</float> <!-- uncomment this to require suggestions to occur in 1% of the documents <float name="thresholdTokenFrequency">.01</float> --> </lst> <!-- a spellchecker that can break or combine words. See "/spell" handler below for usage --> <!-- <lst name="spellchecker"> <str name="name">wordbreak</str> <str name="classname">solr.WordBreakSolrSpellChecker</str> <str name="field">name</str> <str name="combineWords">true</str> <str name="breakWords">true</str> <int name="maxChanges">10</int> </lst> --> </searchComponent> <!-- A request handler for demonstrating the spellcheck component. NOTE: This is purely as an example. The whole purpose of the SpellCheckComponent is to hook it into the request handler that handles your normal user queries so that a separate request is not needed to get suggestions. IN OTHER WORDS, THERE IS REALLY GOOD CHANCE THE SETUP BELOW IS NOT WHAT YOU WANT FOR YOUR PRODUCTION SYSTEM! See http://wiki.apache.org/solr/SpellCheckComponent for details on the request parameters. --> <requestHandler name="/spell" class="solr.SearchHandler" startup="lazy"> <lst name="defaults"> <!-- Solr will use suggestions from both the 'default' spellchecker and from the 'wordbreak' spellchecker and combine them. collations (re-written queries) can include a combination of corrections from both spellcheckers --> <str name="spellcheck.dictionary">default</str> <str name="spellcheck">on</str> <str name="spellcheck.extendedResults">true</str> <str name="spellcheck.count">10</str> <str name="spellcheck.alternativeTermCount">5</str> <str name="spellcheck.maxResultsForSuggest">5</str> <str name="spellcheck.collate">true</str> <str name="spellcheck.collateExtendedResults">true</str> <str name="spellcheck.maxCollationTries">10</str> <str name="spellcheck.maxCollations">5</str> </lst> <arr name="last-components"> <str>spellcheck</str> </arr> </requestHandler> <!-- Term Vector Component http://wiki.apache.org/solr/TermVectorComponent --> <searchComponent name="tvComponent" class="solr.TermVectorComponent"/> <!-- A request handler for demonstrating the term vector component This is purely as an example. In reality you will likely want to add the component to your already specified request handlers. --> <requestHandler name="/tvrh" class="solr.SearchHandler" startup="lazy"> <lst name="defaults"> <bool name="tv">true</bool> </lst> <arr name="last-components"> <str>tvComponent</str> </arr> </requestHandler> <!-- Clustering Component. (Omitted here. See the default Solr example for a typical configuration.) --> <!-- Terms Component http://wiki.apache.org/solr/TermsComponent A component to return terms and document frequency of those terms --> <searchComponent name="terms" class="solr.TermsComponent"/> <!-- A request handler for demonstrating the terms component --> <requestHandler name="/terms" class="solr.SearchHandler" startup="lazy"> <lst name="defaults"> <bool name="terms">true</bool> <bool name="distrib">false</bool> </lst> <arr name="components"> <str>terms</str> </arr> </requestHandler> <!-- Query Elevation Component http://wiki.apache.org/solr/QueryElevationComponent a search component that enables you to configure the top results for a given query regardless of the normal lucene scoring. --> <searchComponent name="elevator" class="solr.QueryElevationComponent" > <!-- pick a fieldType to analyze queries --> <str name="queryFieldType">string</str> </searchComponent> <!-- A request handler for demonstrating the elevator component --> <requestHandler name="/elevate" class="solr.SearchHandler" startup="lazy"> <lst name="defaults"> <str name="echoParams">explicit</str> </lst> <arr name="last-components"> <str>elevator</str> </arr> </requestHandler> <!-- Highlighting Component http://wiki.apache.org/solr/HighlightingParameters --> <searchComponent class="solr.HighlightComponent" name="highlight"> <highlighting> <!-- Configure the standard fragmenter --> <!-- This could most likely be commented out in the "default" case --> <fragmenter name="gap" default="true" class="solr.highlight.GapFragmenter"> <lst name="defaults"> <int name="hl.fragsize">100</int> </lst> </fragmenter> <!-- A regular-expression-based fragmenter (for sentence extraction) --> <fragmenter name="regex" class="solr.highlight.RegexFragmenter"> <lst name="defaults"> <!-- slightly smaller fragsizes work better because of slop --> <int name="hl.fragsize">70</int> <!-- allow 50% slop on fragment sizes --> <float name="hl.regex.slop">0.5</float> <!-- a basic sentence pattern --> <str name="hl.regex.pattern">[-\w ,/\n\"']{20,200}</str> </lst> </fragmenter> <!-- Configure the standard formatter --> <formatter name="html" default="true" class="solr.highlight.HtmlFormatter"> <lst name="defaults"> <str name="hl.simple.pre"><![CDATA[<em>]]></str> <str name="hl.simple.post"><![CDATA[</em>]]></str> </lst> </formatter> <!-- Configure the standard encoder --> <encoder name="html" class="solr.highlight.HtmlEncoder" /> <!-- Configure the standard fragListBuilder --> <fragListBuilder name="simple" class="solr.highlight.SimpleFragListBuilder"/> <!-- Configure the single fragListBuilder --> <fragListBuilder name="single" class="solr.highlight.SingleFragListBuilder"/> <!-- Configure the weighted fragListBuilder --> <fragListBuilder name="weighted" default="true" class="solr.highlight.WeightedFragListBuilder"/> <!-- default tag FragmentsBuilder --> <fragmentsBuilder name="default" default="true" class="solr.highlight.ScoreOrderFragmentsBuilder"> <!-- <lst name="defaults"> <str name="hl.multiValuedSeparatorChar">/</str> </lst> --> </fragmentsBuilder> <!-- multi-colored tag FragmentsBuilder --> <fragmentsBuilder name="colored" class="solr.highlight.ScoreOrderFragmentsBuilder"> <lst name="defaults"> <str name="hl.tag.pre"><![CDATA[ <b style="background:yellow">,<b style="background:lawgreen">, <b style="background:aquamarine">,<b style="background:magenta">, <b style="background:palegreen">,<b style="background:coral">, <b style="background:wheat">,<b style="background:khaki">, <b style="background:lime">,<b style="background:deepskyblue">]]></str> <str name="hl.tag.post"><![CDATA[</b>]]></str> </lst> </fragmentsBuilder> <boundaryScanner name="default" default="true" class="solr.highlight.SimpleBoundaryScanner"> <lst name="defaults"> <str name="hl.bs.maxScan">10</str> <str name="hl.bs.chars">.,!? 	 </str> </lst> </boundaryScanner> <boundaryScanner name="breakIterator" class="solr.highlight.BreakIteratorBoundaryScanner"> <lst name="defaults"> <!-- type should be one of CHARACTER, WORD(default), LINE and SENTENCE --> <str name="hl.bs.type">WORD</str> <!-- language and country are used when constructing Locale object. --> <!-- And the Locale object will be used when getting instance of BreakIterator --> <str name="hl.bs.language">en</str> <str name="hl.bs.country">US</str> </lst> </boundaryScanner> </highlighting> </searchComponent> <!-- Update Processors --> <!-- Add unknown fields to the schema Field type guessing update processors that will attempt to parse string-typed field values as Booleans, Longs, Doubles, or Dates, and then add schema fields with the guessed field types. Text content will be indexed as "text_general" as well as a copy to a plain string version in *_str. These require that the schema is both managed and mutable, by declaring schemaFactory as ManagedIndexSchemaFactory, with mutable specified as true. See http://wiki.apache.org/solr/GuessingFieldTypes --> <updateProcessor class="solr.UUIDUpdateProcessorFactory" name="uuid"/> <updateProcessor class="solr.RemoveBlankFieldUpdateProcessorFactory" name="remove-blank"/> <updateProcessor class="solr.FieldNameMutatingUpdateProcessorFactory" name="field-name-mutating"> <str name="pattern">[^\w-\.]</str> <str name="replacement">_</str> </updateProcessor> <updateProcessor class="solr.ParseBooleanFieldUpdateProcessorFactory" name="parse-boolean"/> <updateProcessor class="solr.ParseLongFieldUpdateProcessorFactory" name="parse-long"/> <updateProcessor class="solr.ParseDoubleFieldUpdateProcessorFactory" name="parse-double"/> <updateProcessor class="solr.ParseDateFieldUpdateProcessorFactory" name="parse-date"> <arr name="format"> <str>yyyy-MM-dd'T'HH:mm:ss.SSSZ</str> <str>yyyy-MM-dd'T'HH:mm:ss,SSSZ</str> <str>yyyy-MM-dd'T'HH:mm:ss.SSS</str> <str>yyyy-MM-dd'T'HH:mm:ss,SSS</str> <str>yyyy-MM-dd'T'HH:mm:ssZ</str> <str>yyyy-MM-dd'T'HH:mm:ss</str> <str>yyyy-MM-dd'T'HH:mmZ</str> <str>yyyy-MM-dd'T'HH:mm</str> <str>yyyy-MM-dd HH:mm:ss.SSSZ</str> <str>yyyy-MM-dd HH:mm:ss,SSSZ</str> <str>yyyy-MM-dd HH:mm:ss.SSS</str> <str>yyyy-MM-dd HH:mm:ss,SSS</str> <str>yyyy-MM-dd HH:mm:ssZ</str> <str>yyyy-MM-dd HH:mm:ss</str> <str>yyyy-MM-dd HH:mmZ</str> <str>yyyy-MM-dd HH:mm</str> <str>yyyy-MM-dd</str> </arr> </updateProcessor> <updateProcessor class="solr.AddSchemaFieldsUpdateProcessorFactory" name="add-schema-fields"> <lst name="typeMapping"> <str name="valueClass">java.lang.String</str> <str name="fieldType">text_general</str> <!-- Use as default mapping instead of defaultFieldType --> <bool name="default">true</bool> </lst> <lst name="typeMapping"> <str name="valueClass">java.lang.Boolean</str> <str name="fieldType">booleans</str> </lst> <lst name="typeMapping"> <str name="valueClass">java.util.Date</str> <str name="fieldType">pdates</str> </lst> <lst name="typeMapping"> <str name="valueClass">java.lang.Long</str> <str name="valueClass">java.lang.Integer</str> <str name="fieldType">plongs</str> </lst> <lst name="typeMapping"> <str name="valueClass">java.lang.Number</str> <str name="fieldType">pdoubles</str> </lst> </updateProcessor> <!-- The update.autoCreateFields property can be turned to false to disable schemaless mode --> <updateRequestProcessorChain name="add-unknown-fields-to-the-schema" default="${update.autoCreateFields:true}" processor="uuid,remove-blank,field-name-mutating,parse-boolean,parse-long,parse-double,parse-date,add-schema-fields"> <processor class="solr.LogUpdateProcessorFactory"/> <processor class="solr.DistributedUpdateProcessorFactory"/> <processor class="solr.RunUpdateProcessorFactory"/> </updateRequestProcessorChain> <updateRequestProcessorChain name="generateLIDVID"> <processor class="solr.CloneFieldUpdateProcessorFactory"> <str name="source">lid</str> <str name="source">version_id</str> <str name="dest">lidvid</str> </processor> <processor class="solr.ConcatFieldUpdateProcessorFactory"> <str name="fieldName">lidvid</str> <str name="delimiter">::</str> </processor> <processor class="solr.LogUpdateProcessorFactory" /> <processor class="solr.RunUpdateProcessorFactory" /> </updateRequestProcessorChain> <!-- Response Writers --> <queryResponseWriter name="json" class="solr.JSONResponseWriter"> </queryResponseWriter> <queryResponseWriter name="velocity" class="solr.VelocityResponseWriter" startup="lazy"> <str name="template.base.dir">${velocity.template.base.dir:}</str> <str name="solr.resource.loader.enabled">${velocity.solr.resource.loader.enabled:true}</str> <str name="params.resource.loader.enabled">${velocity.params.resource.loader.enabled:false}</str> </queryResponseWriter> </config>