editorialsearchonecollection.java

关于Ultraseek的一些用法,刚初学,所以都是比较简单

/* -*- mode:java; indent-tabs-mode:nil; c-basic-offset:2 -*-
 *
 *  $RCSFile$ $Revision: 1.12 $ $Date: 2006/02/01 00:20:31 $
 *
 *  Copyright (c) 2002 Autonomy Corp.  All Rights Reserved.
 *  Permission to use, copy, modify, and distribute this file is hereby
 *  granted without fee, provided that the above copyright notice appear
 *  in all copies.
 */

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.*;

import com.ultraseek.xpa.search.*;
import com.ultraseek.xpa.server.UltraseekServer;

/**
 *  A simple demo application that demonstrates how the EditorialSearchable
 *  works. It does a preliminary search of the Ultraseek collection
 *  and prepends two of the search results from here to all subsequent
 *  query results.  
 */

public class EditorialSearchOneCollection {

  /** How many Editorial results to collect */
  public final static int EDITORIAL_RESULTS = 2;
  /** How many results to print */
  public final static int MAX_RESULTS = EDITORIAL_RESULTS + 2;
  public final static boolean VERBOSE = false;

  public EditorialSearchOneCollection() { }

  /** Utility function to print out verbose messages */
  public static void VerbosePrint(String msg) {
    if (VERBOSE) System.out.println(msg);
  }

  public static void main(String[] args) throws Exception {
    InputStreamReader inputStreamReader = new InputStreamReader(System.in);
    BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
    System.out.println();
    System.out.println("This is a simple demo application that does an");
    System.out.println("initial search of the Ultraseek collection,");
    System.out.println("uses the first two results to form an editorial list");
    System.out.println("which provides the initial results of later");
    System.out.println("searches.");
    System.out.println();
    System.out.println("Enter the hostname and TCP port of your");
    System.out.println("running Ultraseek instance.");
    System.out.print("hostname: ");
    String host = bufferedReader.readLine();
    System.out.print("TCP port: ");
    int port = Integer.parseInt(bufferedReader.readLine());
    SearchServer searchServer = new UltraseekServer(host,port);
    System.out.println();
    VerbosePrint("Here is the SearchServer object:\n"
                 + searchServer);
    System.out.println();
    System.out.println("Enter the internal name of the collection.");
    System.out.print("collection: ");
    String id = bufferedReader.readLine();
    SearchCollection searchCollection = searchServer.getSearchCollection(id);
    System.out.println();
    VerbosePrint("Here is the SearchCollection object:\n" +
                 searchCollection);

    System.out.println();
    System.out.println("Enter an initial query. The first two results from");
    System.out.println("this will be used to form the editorial list");
    System.out.print("search: ");
    String line = bufferedReader.readLine();
    FixedSearchable fixedSearchable = new FixedSearchable();
    if (line!=null) {
      Query query = Query.parse(line);
      SearchResultList searchResultList = searchCollection.search(query);
      System.out.println("There are about " + searchResultList.getResultCount() + " results." );
      FixedSearchResultList fixedList = new FixedSearchResultList();
      int count = 0;
      try {
        Iterator iterator = searchResultList.iterator();
        while (iterator.hasNext() && count++ < EDITORIAL_RESULTS) {
          SearchResult searchResult = (SearchResult)iterator.next();
          fixedList.add(searchResult);
        }
      } catch (NoSuchElementException e) {
        /* No more results from server, not an error. */
      }
      System.out.println("The first " + fixedList.size() + " results will be prepended to each query result." );
      fixedSearchable.setResultList(fixedList);
    }

    EditorialSearchable edS;
    edS = new EditorialSearchable(fixedSearchable, searchCollection,
                                  DedupingSearchable.URL_CMP);
    System.out.println();
    VerbosePrint("Here is the EditorialSearchable object:\n" +
                 edS);

    for (;;) {
      System.out.println();
      System.out.println("Enter a query.");
      System.out.print("search: ");
      line = bufferedReader.readLine();
      if (line==null) break;
      Query query = Query.parse(line);
      System.out.println();
      VerbosePrint("Here is the Query object:\n" + 
                   query);
      SearchResultList searchResultList = edS.search(query);
      System.out.println();
      VerbosePrint("Here is the SearchResultList object:\n" +
                   searchResultList);
      Collection relatedTopics = searchResultList.getRelatedTopics();
      System.out.println();
      if (!relatedTopics.isEmpty()) {
        System.out.println("Here are the SearchTopic objects:");
        Iterator iterator = relatedTopics.iterator();
        while (iterator.hasNext()) {
          SearchTopic searchTopic = (SearchTopic)iterator.next();
          System.out.println(searchTopic);
        }
      } else {
        System.out.println("There are no SearchTopic objects.");
      }
      System.out.println();
      if (!searchResultList.isEmpty()) {
        System.out.println("There are about " + searchResultList.getResultCount() + " results." );
        System.out.println("Here are the SearchResult objects:");
        Iterator iterator = searchResultList.iterator();
        try {
          int count = 0;
          while (iterator.hasNext() && count++ < MAX_RESULTS) {
            SearchResult searchResult = (SearchResult)iterator.next();
            System.out.println();
            if (VERBOSE)
              System.out.println("" + count + "  " + searchResult);
            else
              System.out.println("" + count + "  " + searchResult.getURL() + "\n" +
                                 "   " + searchResult.getTitle() );
          }
        } catch (NoSuchElementException e) {
          /* No more results from server, not an error. */
        }
      } else {
        System.out.println("There are no SearchResult objects.");
      }
    }
  }
}