mirror of https://github.com/apache/lucene.git
SOLR-2021: Add SolrEncoder plugin to Highlighter
git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@981936 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Koji Sekiguchi
parent
0c0fb8bb5a
commit
ac95528aab
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@ -220,6 +220,8 @@ New Features
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to dates.
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(Gijs Kunze, hossman)
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* SOLR-2021: Add SolrEncoder plugin to Highlighter. (koji)
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Optimizations
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----------------------
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@ -978,45 +978,49 @@
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<str name="echoHandler">true</str>
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</lst>
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</requestHandler>
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<searchComponent class="solr.HighlightComponent" name="highlight">
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<highlighting>
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<!-- Configure the standard fragmenter -->
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<!-- This could most likely be commented out in the "default" case -->
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<fragmenter name="gap" class="org.apache.solr.highlight.GapFragmenter" default="true">
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<lst name="defaults">
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<int name="hl.fragsize">100</int>
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</lst>
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</fragmenter>
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<highlighting>
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<!-- Configure the standard fragmenter -->
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<!-- This could most likely be commented out in the "default" case -->
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<fragmenter name="gap" class="org.apache.solr.highlight.GapFragmenter" default="true">
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<lst name="defaults">
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<int name="hl.fragsize">100</int>
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</lst>
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</fragmenter>
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<!-- A regular-expression-based fragmenter (f.i., for sentence extraction) -->
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<fragmenter name="regex" class="org.apache.solr.highlight.RegexFragmenter">
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<lst name="defaults">
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<!-- slightly smaller fragsizes work better because of slop -->
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<int name="hl.fragsize">70</int>
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<!-- allow 50% slop on fragment sizes -->
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<float name="hl.regex.slop">0.5</float>
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<!-- a basic sentence pattern -->
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<str name="hl.regex.pattern">[-\w ,/\n\"']{20,200}</str>
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</lst>
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</fragmenter>
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<!-- A regular-expression-based fragmenter (f.i., for sentence extraction) -->
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<fragmenter name="regex" class="org.apache.solr.highlight.RegexFragmenter">
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<lst name="defaults">
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<!-- slightly smaller fragsizes work better because of slop -->
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<int name="hl.fragsize">70</int>
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<!-- allow 50% slop on fragment sizes -->
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<float name="hl.regex.slop">0.5</float>
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<!-- a basic sentence pattern -->
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<str name="hl.regex.pattern">[-\w ,/\n\"']{20,200}</str>
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</lst>
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</fragmenter>
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<!-- Configure the standard formatter -->
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<formatter name="html" class="org.apache.solr.highlight.HtmlFormatter" default="true">
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<lst name="defaults">
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<str name="hl.simple.pre"><![CDATA[<em>]]></str>
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<str name="hl.simple.post"><![CDATA[</em>]]></str>
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</lst>
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</formatter>
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<!-- Configure the standard formatter -->
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<formatter name="html" class="org.apache.solr.highlight.HtmlFormatter" default="true">
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<lst name="defaults">
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<str name="hl.simple.pre"><![CDATA[<em>]]></str>
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<str name="hl.simple.post"><![CDATA[</em>]]></str>
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</lst>
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</formatter>
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<!-- Configure the standard fragListBuilder -->
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<fragListBuilder name="simple" class="org.apache.solr.highlight.SimpleFragListBuilder" default="true"/>
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<!-- Configure the standard encoder -->
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<encoder name="html" class="org.apache.solr.highlight.HtmlEncoder" default="true"/>
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<!-- Configure the single fragListBuilder -->
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<fragListBuilder name="single" class="org.apache.solr.highlight.SingleFragListBuilder"/>
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<!-- Configure the standard fragListBuilder -->
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<fragListBuilder name="simple" class="org.apache.solr.highlight.SimpleFragListBuilder" default="true"/>
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<!-- multi-colored tag FragmentsBuilder -->
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<fragmentsBuilder name="colored" class="org.apache.solr.highlight.MultiColoredScoreOrderFragmentsBuilder" default="true"/>
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</highlighting>
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<!-- Configure the single fragListBuilder -->
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<fragListBuilder name="single" class="org.apache.solr.highlight.SingleFragListBuilder"/>
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<!-- multi-colored tag FragmentsBuilder -->
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<fragmentsBuilder name="colored" class="org.apache.solr.highlight.MultiColoredScoreOrderFragmentsBuilder" default="true"/>
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</highlighting>
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</searchComponent>
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<!-- An example dedup update processor that creates the "id" field on the fly
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@ -29,6 +29,7 @@ public interface HighlightParams {
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public static final String INCREMENT = HIGHLIGHT+".increment";
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public static final String MAX_CHARS = HIGHLIGHT+".maxAnalyzedChars";
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public static final String FORMATTER = HIGHLIGHT+".formatter";
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public static final String ENCODER = HIGHLIGHT+".encoder";
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public static final String FRAGMENTER = HIGHLIGHT+".fragmenter";
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public static final String FRAG_LIST_BUILDER = HIGHLIGHT+".fragListBuilder";
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public static final String FRAGMENTS_BUILDER = HIGHLIGHT+".fragmentsBuilder";
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@ -80,6 +80,7 @@ public class DefaultSolrHighlighter extends SolrHighlighter implements PluginInf
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public void init(PluginInfo info) {
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formatters.clear();
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encoders.clear();
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fragmenters.clear();
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fragListBuilders.clear();
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fragmentsBuilders.clear();
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@ -96,6 +97,12 @@ public class DefaultSolrHighlighter extends SolrHighlighter implements PluginInf
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formatters.put("", fmt);
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formatters.put(null, fmt);
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// Load the formatters
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SolrEncoder enc = solrCore.initPlugins(info.getChildren("encoder"), encoders,SolrEncoder.class,null);
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if (enc == null) enc = new DefaultEncoder();
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encoders.put("", enc);
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encoders.put(null, enc);
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// Load the FragListBuilders
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SolrFragListBuilder fragListBuilder = solrCore.initPlugins(info.getChildren("fragListBuilder"),
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fragListBuilders, SolrFragListBuilder.class, null );
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@ -126,6 +133,10 @@ public class DefaultSolrHighlighter extends SolrHighlighter implements PluginInf
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formatters.put("", fmt);
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formatters.put(null, fmt);
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SolrEncoder enc = new DefaultEncoder();
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encoders.put("", enc);
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encoders.put(null, enc);
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SolrFragListBuilder fragListBuilder = new SimpleFragListBuilder();
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fragListBuilders.put( "", fragListBuilder );
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fragListBuilders.put( null, fragListBuilder );
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@ -147,7 +158,10 @@ public class DefaultSolrHighlighter extends SolrHighlighter implements PluginInf
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SolrParams params = request.getParams();
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Highlighter highlighter = null;
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highlighter = new Highlighter(getFormatter(fieldName, params), getSpanQueryScorer(query, fieldName, tokenStream, request));
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highlighter = new Highlighter(
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getFormatter(fieldName, params),
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getEncoder(fieldName, params),
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getSpanQueryScorer(query, fieldName, tokenStream, request));
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highlighter.setTextFragmenter(getFragmenter(fieldName, params));
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@ -164,6 +178,7 @@ public class DefaultSolrHighlighter extends SolrHighlighter implements PluginInf
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SolrParams params = request.getParams();
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Highlighter highlighter = new Highlighter(
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getFormatter(fieldName, params),
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getEncoder(fieldName, params),
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getQueryScorer(query, fieldName, request));
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highlighter.setTextFragmenter(getFragmenter(fieldName, params));
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return highlighter;
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@ -249,6 +264,24 @@ public class DefaultSolrHighlighter extends SolrHighlighter implements PluginInf
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return formatter.getFormatter( fieldName, params );
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}
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/**
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* Return an {@link org.apache.lucene.search.highlight.Encoder} appropriate for this field. If an encoder
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* has not been configured for this field, fall back to the configured
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* default or the solr default ({@link org.apache.lucene.search.highlight.DefaultEncoder}).
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*
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* @param fieldName The name of the field
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* @param params The params controlling Highlighting
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* @return An appropriate {@link org.apache.lucene.search.highlight.Encoder}.
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*/
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protected Encoder getEncoder(String fieldName, SolrParams params){
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String str = params.getFieldParam( fieldName, HighlightParams.ENCODER );
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SolrEncoder encoder = encoders.get( str );
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if( encoder == null ) {
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throw new SolrException( SolrException.ErrorCode.BAD_REQUEST, "Unknown encoder: "+str );
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}
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return encoder.getEncoder( fieldName, params );
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}
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/**
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* Return a {@link org.apache.lucene.search.highlight.Fragmenter} appropriate for this field. If a fragmenter
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* has not been configured for this field, fall back to the configured
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@ -43,6 +43,10 @@ public abstract class SolrHighlighter
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protected final Map<String,SolrFormatter> formatters =
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new HashMap<String, SolrFormatter>();
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// Thread safe registry
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protected final Map<String,SolrEncoder> encoders =
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new HashMap<String, SolrEncoder>();
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// Thread safe registry
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protected final Map<String,SolrFragmenter> fragmenters =
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new HashMap<String, SolrFragmenter>() ;
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