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From carl...@apache.org
Subject cvs commit: jakarta-lucene-sandbox/contributions/searchbean/src/java/org/apache/lucene/beans SearchBean.java
Date Thu, 23 May 2002 00:45:05 GMT
carlson     02/05/22 17:45:04

  Added:       contributions/searchbean/src/java/org/apache/lucene/beans
                        SearchBean.java
  Log:
  Initial submit of SerachBean and related classes
  
  Revision  Changes    Path
  1.1                  jakarta-lucene-sandbox/contributions/searchbean/src/java/org/apache/lucene/beans/SearchBean.java
  
  Index: SearchBean.java
  ===================================================================
  /*
   * SearchBean.java
   *
   * Created on November 1, 2001, 10:31 AM
   */
  
  package org.apache.lucene.beans;
  
  import org.apache.lucene.search.Searcher;
  import org.apache.lucene.search.IndexSearcher;
  import org.apache.lucene.search.Query;
  import org.apache.lucene.search.Hits;
  import org.apache.lucene.search.HitCollector;
  import org.apache.lucene.store.Directory;
  import org.apache.lucene.analysis.Analyzer;
  import org.apache.lucene.analysis.StopAnalyzer;
  import org.apache.lucene.analysis.standard.StandardAnalyzer;
  import org.apache.lucene.queryParser.QueryParser;
  import org.apache.lucene.queryParser.ParseException;
  
  import java.util.Vector;
  
  import org.apache.lucene.beans.HitsIterator;
  
  import java.io.IOException;
  
  //import org.apache.log4j.Logger;
  
  /**
   *
   * @author  peter carlson
   * @version 1.0
   */
  public class SearchBean extends Object {
      
      private String queryString = "";
      private String querySortField = "relevance"; // default
      private String queryType = "";
      private Directory directory;
      private HitsIterator hitsIterator = null;
      private String defaultSearchField = "text";
      private long searchTime = 0;
      // static Logger logger = Logger.getLogger(SearchBean.class.getName());
      // static Logger searchLogger = Logger.getLogger("searchLog");
      
      private SearchBean(){
      }
      
      /** Creates new SearchBean
       * @param path to index
       */
      public SearchBean(Directory directory) {
          this.directory = directory;
      }
      
      /** Creates new SearchBean
       * @param directory index
       * @param queryString string to search with
       */
      public SearchBean(Directory directory, String queryString) {
          this(directory);
          setQueryString(queryString);
      }
      
      /** Creates new SearchBean
       * @param directory index
       * @param queryString string to search with
       * @param querySortField field to sort on
       */
      public SearchBean(Directory directory, String queryString, String querySortField) {
          this(directory);
          setQueryString(queryString);
          setQuerySortField(querySortField);
      }
      
      /** Creates new SearchBean
       * @param directory index
       * @param queryString string to search with
       * @param querySortField field to sort on
       * @param queryType used to indicate which index and default Field
       */
      public SearchBean(Directory directory, String queryString, String querySortField, String
queryType){
          this(directory);
          setQueryString(queryString);
          setQuerySortField(querySortField);
          setQueryType(queryType);
      }
      
      /** main search method
       */
      public HitsIterator search() throws IOException, ParseException{
          return search(queryString,querySortField);
      }
      
      /** main search method
       * @param queryString string to search with
       */
      public HitsIterator search(String queryString) throws IOException, ParseException{
          return search(queryString,queryString);
      }
      
      /** main search method
       * @param queryString string to search with
       * @param querySortField field to sort on
       */
      public HitsIterator search(String queryString, String querySortField) throws IOException,
ParseException{
          return search(queryString, querySortField, queryType);
      }
      
      /** main search method
       * @param queryString string to search with
       * @param querySortField field to sort on
       * @param queryType used to indicate the index to search
       */
      public HitsIterator search(String queryString, String querySortField, String queryType)
   throws IOException, ParseException {
          long startTime = System.currentTimeMillis();
          Hits hits = searchHits(queryString, queryType);
          
          if (hits == null) {return null;}
          if (hits.length() == 0) {return null;}
          
          HitsIterator hi = new HitsIterator(hits, querySortField);
          long endTime = System.currentTimeMillis();
          setSearchTime(endTime - startTime);
          setHitsIterator(hi);
          //searchLogger.info("queryString = "+queryString + "sort field = "+ querySortField
+" #results = "+hits.length());
          return hi;
      }
      
      /** does the actual searching
       */
      private Hits searchHits(String queryString, String queryType) throws IOException, ParseException{
          if (queryString == "") {
              return null;
          }
          
          // Provide for multiple indices in the future
          
          Searcher searcher = new IndexSearcher(directory);
          Query query = getQuery(queryString, defaultSearchField);
          //System.out.println("###querystring= "+query.toString(defaultSearchField));
          Hits hits = searcher.search(query);
          //System.out.println("Number hits = "+hits.length());
          //logger.debug("queryString = "+query.toString(searchField)+" hits = "+hits.length()+"
queryType = "+queryType+" indexPath = "+indexPath );
          return hits;
      }
      
      /** <queryString> | <queryType> | <querySortField>
       */
      public String toString(){
          return queryString+"|"+queryType+"|"+querySortField;
      }
      
      /** setter for queryString
       */
      public void setQueryString
      (String queryString) {
          this.queryString = queryString;
      }
      
      /** getter for queryString
       */
      public String getQueryString(){
          return queryString;
      }
      
      /** getter for Lucene Query
       */
      private Query getQuery(String queryString, String searchField) throws ParseException
{
          //String defaultSearchField = "text";
          Analyzer analyzer = new StandardAnalyzer();
          Query query = QueryParser.parse(queryString, searchField, analyzer);
          //System.out.println(query.toString());
          return query;
      }
      
      /** Getter for property defaulSearchField.
       * @return Value of property defaulSearchField.
       */
      public String getDefaultSearchField() {
          return defaultSearchField;
      }
      
      /** Setter for property defaulSearchField.
       * @param defaulSearchField New value of property defaulSearchField.
       */
      public void setDefaultSearchField(java.lang.String defaultSearchField) {
          this.defaultSearchField = defaultSearchField;
      }
      
      /** Getter for property searchTime.
       * @return Value of property searchTime.
       */
      public long getSearchTime() {
          return searchTime;
      }
      
      /** Setter for property searchTime.
       * @param searchTime New value of property searchTime.
       */
      public void setSearchTime(long searchTime) {
          this.searchTime = searchTime;
      }
      
      /** Getter for property querySortField.
       * @return Value of property querySortField.
       */
      public java.lang.String getQuerySortField() {
          return querySortField;
      }
      
      /** Setter for property querySortField.
       * @param querySortField New value of property querySortField.
       */
      public void setQuerySortField(String querySortField) {
          this.querySortField = querySortField;
      }
      
      /** Getter for property hitsIterator.
       * @return Value of property hitsIterator.
       */
      public HitsIterator getHitsIterator() {
          return hitsIterator;
      }
      
      /** Setter for property hitsIterator.
       * @param hitsIterator New value of property hitsIterator.
       */
      public void setHitsIterator(HitsIterator hitsIterator) {
          this.hitsIterator = hitsIterator;
      }
      
      /** Getter for property queryType.
       * @return Value of property queryType.
       */
      public java.lang.String getQueryType() {
          return queryType;
      }
      
      /** Setter for property queryType.
       * @param queryType New value of property queryType.
       */
      public void setQueryType(java.lang.String queryType) {
          this.queryType = queryType;
      }
      
      /** Getter for property directory.
       * @return Value of property directory.
       */
      public org.apache.lucene.store.Directory getDirectory() {
          return directory;
      }    
      
      /** Setter for property directory.
       * @param directory New value of property directory.
       */
      public void setDirectory(org.apache.lucene.store.Directory directory) {
          this.directory = directory;
      }
      
  }
  
  
  

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