searchaction.java

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/*
 * Copyright 2004 JavaFree.org
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.javabb.action;

import java.util.ArrayList;
import java.util.List;

import org.javabb.action.infra.BaseAction;
import org.javabb.component.PostFormatter;
import org.javabb.infra.Utils;
import org.javabb.transaction.CategoryTransaction;
import org.javabb.transaction.PostTransaction;
import org.javabb.vo.Post;

import com.opensymphony.xwork.Action;


/**
 *
 * @author <a href="mailto:[e-mail]">Marcos Silva Pereira</a>
 *
 * @since 22/04/2005
 *
 * @version $Id$
 */
public class SearchAction extends BaseAction {

	private static final long serialVersionUID = 1L;
	public static final String EMPTY = "empty";

	private String query;

	private int page;
	private int totalRowsFound;
	private boolean empty = false;
	private Integer typeSearch = new Integer(1);

	private List posts;
	private PostTransaction postTransaction;
	private PostFormatter postFormatter;
	private CategoryTransaction _categoryTransaction;

    public void setPostFormatter(PostFormatter postFormatter) {
        this.postFormatter = postFormatter;
    }
	
	public List getLstCategory() throws Exception {
		return _categoryTransaction.listCategory();
	}

    public String searchInPosts(){
    	posts = postTransaction.findInPosts(query, page);
    	return SUCCESS;
    }
    
	public String formatPost(Post post) {
		return postFormatter.formatPost(post);
	}

	public void setCategoryTransaction(CategoryTransaction categoryTransaction) {
		this._categoryTransaction = categoryTransaction;
	}
    

	public String execute() {
		return Action.SUCCESS;
	}

	/**
	 * actually do search
	 * @return action status
	 */
	public String search() throws Exception{
		Long forumId = getForumId();

		maintainSearchList(query, forumId);
			
		log.debug("Search: [query]:" + query);
		if(query != null){
			if(query.indexOf(" ") > 0 &&  query.indexOf(" AND ") == -1){
				query = query.replaceAll(" ", " AND ");
			}
		}
		posts = postTransaction.findByQuery(query, forumId, page);
		if(posts.isEmpty()) {
			empty = true;
			query = query.replaceAll(" AND ", " ");
			log.debug("Search: [No rows found]");
			return EMPTY;
		}
		totalRowsFound = postTransaction.getTotalRowsOfLucene(query, forumId);

		query = query.replaceAll(" AND ", " ");
		
		log.debug("Search: [total rows]:" + totalRowsFound);
		
        return SUCCESS;
	}

	/**
	 * This method is responsable for check in a Session List
	 * if the user already has searched for some string, it he didn't
	 * we stored this string in a Statitics table.
	 * @param query
	 */
	private void maintainSearchList(String query, Long forumId) throws Exception {
		if(page ==1 && query.length() > 2){
			if(getSessionAttribute("querySearchList") != null) {
				List words = (List)getSessionAttribute("querySearchList");
				if(!Utils.compositeWord(query)){
					String[] parsedWords = query.split(" "); 
					for(int i=0; i<parsedWords.length; i++){
						if(!words.contains(parsedWords[i])){
							words.add(parsedWords[i]);
							postTransaction.insertSearchLockUp(parsedWords[i], forumId);
						}
					}
					setSessionAttribute("querySearchList", words);
				} else {
					//This is a composite word, Sample: "Data Base or in portuguese"
					//"Banco de Dados"
					if(words != null && !words.contains(query)){
						words.add(query);
						postTransaction.insertSearchLockUp(query, forumId);
						setSessionAttribute("querySearchList", words);
					}
				}
				
			} else {
				List words = new ArrayList();
				if(!Utils.compositeWord(query)){
					String[] parsedWords = query.split(" "); 
					for(int i=0; i<parsedWords.length; i++){
						if(!words.contains(parsedWords[i])){
							words.add(parsedWords[i]);
							postTransaction.insertSearchLockUp(parsedWords[i], forumId);
						}
					}
				} else {
					words.add(query);
					postTransaction.insertSearchLockUp(query, forumId);
				}
				setSessionAttribute("querySearchList", words);
			}
		}
	}
	
	
    /**
     * @param post
     * @return formated post
     */
    public String formatPostWithoutBBCode(Post post) {
        return postFormatter.formatWithoutBBCode(post);
    }	
	
	
	public boolean isEmpty() {
		return empty;
	}


	public void setEmpty( boolean empty ) {
		this.empty = empty;
	}


	public List getPosts() {
		return posts;
	}


	public void setPosts( List posts ) {

		this.posts = posts;
	}


	public PostTransaction getPostTransaction() {

		return postTransaction;
	}


	public void setPostTransaction( PostTransaction postTransaction ) {

		this.postTransaction = postTransaction;
	}


	public String getQuery() {

		return query;
	}


	public void setQuery( String query ) {

		this.query = query;
	}


	public int getPage() {

		return page;
	}


	public void setPage( int page ) {

		this.page = page;
	}

	public int getTotalRowsFound() {
		return totalRowsFound;
	}

	public void setTotalRowsFound(int totalRowsFound) {
		this.totalRowsFound = totalRowsFound;
	}

	public Integer getTypeSearch() {
		return typeSearch;
	}

	public void setTypeSearch(Integer typeSearch) {
		this.typeSearch = typeSearch;
	}




}