searchldap.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: 1.8 $ $Date: 2006/01/25 16:56:21 $
 *
 *  Copyright (c) 2001-2002 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.*;
import java.util.*;
import java.util.Iterator;
import java.util.NoSuchElementException;

import com.ultraseek.xpa.search.*;
import com.ultraseek.xpa.ldap.*;

/**
 *  A simple demo application that searches 
 *  a using an Ultraseek XPA LDAPServer() class.
 */
public class SearchLDAP {
  SearchLDAP() { }
  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 searches");
    System.out.println("a running LDAP server via XPA.");
    System.out.println();
    System.out.println("Enter the hostname of your");
    System.out.println("running LDAP server instance.");
    System.out.print("hostname: ");
    String host = bufferedReader.readLine();
    LDAPServer searchServer = new LDAPServer();
    searchServer.setHost(host);
    System.out.println();
    System.out.println("Here is the SearchServer object:");
    System.out.println(searchServer);
    System.out.println();
    System.out.println("Change default base DN (dc=?) of \""+searchServer.getBaseDN()+
                       "\"? (press return to accept)");
    System.out.print("new base DN: ");
    String baseDN = bufferedReader.readLine();
    if (baseDN.trim().equals("")) {
      searchServer.defineSearchCollection("ldap",searchServer.getBaseDN());
    } else {
      searchServer.defineSearchCollection("ldap",baseDN);
    }
    SearchCollection ldapSearchCollection = 
      searchServer.getSearchCollection("ldap");
    Searchable ranked = new RankingSearchable(ldapSearchCollection);
    Searchable searchable = ranked;
    for (;;) {
      System.out.println();
      System.out.println("Enter a query.");
      System.out.print("search: ");
      String line = bufferedReader.readLine();
      if (line==null) break;
      Query query = Query.parse(line);
      System.out.println();
      System.out.println("Here is the Query object:");
      System.out.println(query);
      System.out.println("Here is the LDAP query:");
      System.out.println(LDAPQueryTransform.toLDAP(query));
      SearchResultList searchResultList = searchable.search(query);
      System.out.println();
      System.out.println("Here is the SearchResultList object:");
      System.out.println(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();
      System.out.println("Search result list has " +
                         searchResultList.size() + " matches");
      int count = 0;
      if (!searchResultList.isEmpty()) {
        System.out.println("Here are the SearchResult objects:");
        Iterator iterator = searchResultList.iterator();
        try {
          while (iterator.hasNext()) {
            SearchResult searchResult = (SearchResult)iterator.next();
            System.out.println();
            System.out.println(searchResult);
            count++;
          }
        } catch (NoSuchElementException e) {
          System.out.println("List ended with exception: "+
                             e.getMessage());
        }
        System.out.println("There were "+count+" SearchResult objects.");
      } else {
        System.out.println("There are no SearchResult objects.");
      }
      Map termDFs = searchResultList.getTermDFs();
      System.out.println("Document frequency map for this result list:");
      System.out.println(termDFs.toString());
    }
  }
}