classifier.java

用java实现的一个bbs的portal

/**
 * Created by IntelliJ IDEA.
 * User: Administrator
 * Date: Jul 21, 2003
 * Time: 4:57:30 PM
 * To change this template use Options | File Templates.
 */
package Classification;

import java.util.Enumeration;
import java.util.Vector;
import java.util.StringTokenizer;

public class Classifier {

    public Vector contactVec = new Vector();

    public String getTradeTypeName(String keyword){
        for (Enumeration e = ClassifyConfig.getInstance().BuyTypeWords.elements(); e.hasMoreElements();) {
            String buyWord = (String)e.nextElement();
            if (buyWord.equals(keyword))
                return "BUY";
        }
        for (Enumeration e = ClassifyConfig.getInstance().SaleTypeWords.elements(); e.hasMoreElements();) {
            String saleWord = (String)e.nextElement();
            if (saleWord.equals(keyword))
                return "SALE";
        }
        for (Enumeration e = ClassifyConfig.getInstance().LeaseTypeWords.elements(); e.hasMoreElements();) {
            String leaseWord = (String)e.nextElement();
            if (leaseWord.equals(keyword))
                return "LEASE";
        }
        for (Enumeration e = ClassifyConfig.getInstance().WantLeaseTypeWords.elements(); e.hasMoreElements();) {
            String wantleaseWord = (String)e.nextElement();
            if (wantleaseWord.equals(keyword))
                return "WANTLEASE";
        }
        return "NULL";
    }

    public String getCommodityName(String keyword){
        for (Enumeration e = ClassifyConfig.getInstance().CommodityKeyWords.keys();e.hasMoreElements();){
            String commodity = (String)e.nextElement();
            Vector keyVec = (Vector)ClassifyConfig.getInstance().CommodityKeyWords.get(commodity);
            for (Enumeration ee = keyVec.elements();ee.hasMoreElements();){
                if (keyword.equals(ee.nextElement())){
                    return commodity;
                }
            }
        }
        return null;
    }



    public String checkTradeType(String title){
        title = title.toLowerCase();
        for (Enumeration e = ClassifyConfig.getInstance().AllTypeWords.elements();e.hasMoreElements();){
            String keyword = (String)e.nextElement();
            if (title.indexOf(keyword) != -1){
                return getTradeTypeName(keyword);
            }
        }
        return "NULL";
    }

    private String replaceStr(int pos,String oldword,String newword,String str){
        String str1 = str.substring(0,pos);
        String str2 = str.substring(pos+oldword.length(),str.length());
        return str1+newword+str2;
    }

    private Vector divideSentence(String str){
        Vector vec = new Vector();
        for (int i = 0;i<ClassifyConfig.getInstance().punctuation.length;i++){
            int npos = str.indexOf(ClassifyConfig.getInstance().punctuation[i]);
            while (npos != -1){
                str = replaceStr(npos,ClassifyConfig.getInstance().punctuation[i],"#",str);
                npos = str.indexOf(ClassifyConfig.getInstance().punctuation[i]);
            }
        }
        int sentenceCount = 0;
        StringTokenizer st = new StringTokenizer(str,"#");
        while (st.hasMoreTokens()){
            String tempstr = st.nextToken().trim();
            vec.add(tempstr);
            sentenceCount++;
            if (sentenceCount == 30)
                break;
        }
        return vec;
    }

    public String checkContactLine(String lineText){
        for (Enumeration e = ClassifyConfig.getInstance().ContactKeyWords.elements(); e.hasMoreElements();) {
            String keyword = (String)e.nextElement();
            if (lineText.indexOf(keyword) != -1){
                return lineText;
            }
        }
        for (Enumeration e = ClassifyConfig.getInstance().ContactNumberBefore.elements(); e.hasMoreElements();) {
            String numberBefore = (String)e.nextElement();
            int pos = lineText.indexOf(numberBefore);
            if (( pos != -1)&&(pos > 0)){
                if (((lineText.charAt(pos-1) == '1')||(lineText.charAt(pos-1) == '2')
                        ||(lineText.charAt(pos-1) == '3')||(lineText.charAt(pos-1) == '4')||(lineText.charAt(pos-1) == '5')
                        ||(lineText.charAt(pos-1) == '6')||(lineText.charAt(pos-1) == '7')||(lineText.charAt(pos-1) == '8')
                        ||(lineText.charAt(pos-1) == '9')||(lineText.charAt(pos-1) == '0')))
                    return lineText;
            }
        }
        for (Enumeration e = ClassifyConfig.getInstance().ContactNumberLength.elements(); e.hasMoreElements();) {
            int numberLength = Integer.parseInt((String)e.nextElement());
            int numberCount = 0;
            for (int i=0;i<lineText.length();i++){
                if (((lineText.charAt(i) == '1')||(lineText.charAt(i) == '2')
                        ||(lineText.charAt(i) == '3')||(lineText.charAt(i) == '4')||(lineText.charAt(i) == '5')
                        ||(lineText.charAt(i) == '6')||(lineText.charAt(i) == '7')||(lineText.charAt(i) == '8')
                        ||(lineText.charAt(i) == '9')||(lineText.charAt(i) == '0'))){
                    numberCount++;
                    if (numberCount == numberLength)
                        return lineText;
                }else numberCount = 0;
            }
        }
        return null;
    }

    public void checkContentContact(String text){
        Vector sentences = divideSentence(text);
        for (Enumeration e = sentences.elements();e.hasMoreElements();) {
            String lineText = (String)e.nextElement();
            String contactStr = checkContactLine(lineText);
            if (contactStr != null)
                contactVec.add(contactStr);
        }
    }

    public Vector checkContentCommodity(String text){
        Vector commodityVec = new Vector();
        Vector sentences = divideSentence(text);
        for (Enumeration e = sentences.elements();e.hasMoreElements();) {
            String lineText = (String)e.nextElement();
            Vector lineVec = checkTitleCommodity(lineText);
            commodityVec.addAll(lineVec);
        }
        return commodityVec;
    }

    public Vector checkTitleCommodity(String title){
        String contactStr = checkContactLine(title);
        if (contactStr != null)
            contactVec.add(contactStr);
        String tempTitle = title;
        tempTitle = tempTitle.toLowerCase();
        String tempGoods[] = new String[50];
        Vector vec = new Vector();
        int goodsNum = -1;
        for (Enumeration e = ClassifyConfig.getInstance().AllKeyWords.elements();e.hasMoreElements();){
            String keyword = (String)e.nextElement();
            int pos = tempTitle.indexOf(keyword);
            if (pos != -1)
                goodsNum++;
            while (pos != -1){
                tempTitle = replaceStr(pos,keyword,"@"+String.valueOf(goodsNum)+"@",tempTitle);
                tempGoods[goodsNum] = getCommodityName(keyword);
                pos = tempTitle.indexOf(keyword);
            }
        }
        System.out.println(tempTitle);
        int curpos = tempTitle.indexOf("@@");
        while (curpos != -1){
            int pos = 0;
            int  replacepos = 0;
            if (tempTitle.charAt(curpos-2) == '@'){
                pos = Integer.parseInt(tempTitle.substring(curpos-1,curpos));
                replacepos = curpos -2;
            }else {
                pos = Integer.parseInt(tempTitle.substring(curpos-2,curpos));
                replacepos = curpos -3;
            }
            tempGoods[pos] = null;
            tempTitle = replaceStr(replacepos,"@"+String.valueOf(pos)+"@","",tempTitle);
            curpos = tempTitle.indexOf("@@");
        }
        System.out.println(tempTitle);
        for (int i=0;i<ClassifyConfig.getInstance().DE.length;i++){
            int DEpos = tempTitle.indexOf("@"+ClassifyConfig.getInstance().DE[i]+"@");
            while (DEpos != -1){
                int pos = 0;
                int replacepos = 0;
                if (tempTitle.charAt(DEpos-2) == '@'){
                    pos = Integer.parseInt(tempTitle.substring(DEpos-1,DEpos));
                    replacepos =  DEpos-2;
                }else if (tempTitle.charAt(DEpos-3) == '@'){
                    pos = Integer.parseInt(tempTitle.substring(DEpos-2,DEpos));
                    replacepos =  DEpos-3;
                }
                else break;
                tempGoods[pos] = null;
                tempTitle = replaceStr(replacepos,"@"+String.valueOf(pos)+"@","",tempTitle);
                DEpos = tempTitle.indexOf("@"+ClassifyConfig.getInstance().DE[i]+"@");
            }
        }
        for (int i=0;i<goodsNum+1;i++)
            if (tempGoods[i] != null){
                if ((vec.size()==0)||(!vec.contains(tempGoods[i]+"#"+title)))
                    vec.add(tempGoods[i]+"#"+title);
            }
        return vec;
    }

}