Examples of org.apache.solr.analysis.TokenFilterFactory

org.apache.solr.analysis.TokenFilterFactory
A TokenFilterFactory creates a TokenFilter to transform one TokenStream into another.
TokenFilterFactories are registered for FieldTypes with the IndexSchema through the schema.xml file.

Example schema.xml entry to register a TokenFilterFactory implementation to transform tokens in a field of type "cool"
```
 <fieldtype name="cool" class="solr.TextField"> <analyzer> ... <filter class="foo.MyTokenFilterFactory"/> ... 
```
A single instance of any registered TokenFilterFactory is created via the default constructor and is reused for each FieldType.
@version $Id: TokenFilterFactory.java 597847 2007-11-24 13:51:46Z ryan $

     }
    ******/


    ArrayList<TokenFilterFactory> filters = new ArrayList<TokenFilterFactory>();
    for (int i=0; i<nList.getLength(); i++) {
      TokenFilterFactory filt = readTokenFilterFactory(nList.item(i));
      if (filt != null) filters.add(filt);
    }


    return new TokenizerChain(tfac, filters.toArray(new TokenFilterFactory[filters.size()]));
  };

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  // <tokenizer class="solr.StandardFilterFactory"/>
  private TokenFilterFactory readTokenFilterFactory(Node node) {
    // if (node.getNodeName() != "filter") return null;
    NamedNodeMap attrs = node.getAttributes();
    String className = DOMUtil.getAttr(attrs,"class","token filter");
    TokenFilterFactory tfac = (TokenFilterFactory)Config.newInstance(className);
    tfac.init(DOMUtil.toMapExcept(attrs,"class"));
    return tfac;
  }

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     }
    ******/


    ArrayList<TokenFilterFactory> filters = new ArrayList<TokenFilterFactory>();
    for (int i=0; i<nList.getLength(); i++) {
      TokenFilterFactory filt = readTokenFilterFactory(nList.item(i));
      if (filt != null) filters.add(filt);
    }


    return new TokenizerChain(tfac, filters.toArray(new TokenFilterFactory[filters.size()]));
  };

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  // <tokenizer class="solr.StandardFilterFactory"/>
  private TokenFilterFactory readTokenFilterFactory(Node node) {
    // if (node.getNodeName() != "filter") return null;
    NamedNodeMap attrs = node.getAttributes();
    String className = DOMUtil.getAttr(attrs,"class","token filter");
    TokenFilterFactory tfac = (TokenFilterFactory)Config.newInstance(className);
    tfac.init(DOMUtil.toMapExcept(attrs,"class"));
    return tfac;
  }

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                throw new ConfigurationException(PROPERTY_TOKEN_FILTER_FACTORY, "Unable to instantiate the "
                        + "class '"+filterConfig.getKey()+"'!", e);
            }
            
            if(filterFactoryObject instanceof TokenFilterFactory){
                TokenFilterFactory tff = (TokenFilterFactory)filterFactoryObject;
                Map<String,String> config = filterConfig.getValue();
                if(!config.containsKey("luceneMatchVersion")){
                    config.put("luceneMatchVersion", Version.LUCENE_36.toString());
                }
                tff.init(config);
                filterFactories.add(tff);
            } else {
                throw new ConfigurationException(PROPERTY_TOKEN_FILTER_FACTORY, "The parsed class '"
                        + filterConfig.getKey() +"' is not assignable to "+TokenFilterFactory.class);
            }

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Related Classes of org.apache.solr.analysis.TokenFilterFactory

org.apache.solr.schema.IndexSchema

org.apache.stanbol.enhancer.engines.entitylinking.labeltokenizer.lucene.LuceneLabelTokenizer

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