package webraveler.plugin;

import java.util.*;
import webraveler.http.HTTPRequest;
import webraveler.http.HTTPResponse;

/**
 *
 */

public class TextSummaryPlugin extends webraveler.ravel.RavelerPlugin {
    /* variables */
    
    /*constructors*/
    public TextSummaryPlugin () {
	mimeTypes.add("text/html");
    }
    
    /*methods*/

    public void setDefaultAttributes () {
       attributes = new Hashtable();
       name = "TextSummaryPlugin";
    } 
    
    public boolean initialize () {
        return true;
    }//initialize()

    public HTTPRequest execute (HTTPRequest request, Hashtable attributes) {
         return request;
     }//execute()
    
    
    
    public HTTPResponse execute (HTTPResponse response, Hashtable attributes) {
    	return response;
//	System.out.println("TextSummary!!!!!!!!!!!!!!!!!!!!!!");
//
//         /* find "<p ...>" tags, and get 15 words from that point.  put all the 
//	  * gathered summaries, and put 'em in a vector. at the end of the page,
//	  * do an InsertAtTop operation with the text in the vector, and return
//	  * the modified response */
//	if (response.htmlPage == null) {
//		return response;
//	}//if
//        Vector paragraphs = response.htmlPage.getParagraphs();
//	int count = 0;
//	int size = paragraphs.size();
//	Vector summaryVec = new Vector();
//	while ( count < size ) {
//	        StringBuffer summaryText = new StringBuffer();
//		StringTokenizer tokenizer = new StringTokenizer((String)paragraphs.elementAt(count++)," ");
//		int words = 0;
//		while ( words++ < 30 && tokenizer.hasMoreTokens()) {
//			String token = (String)tokenizer.nextToken();
//			token.replaceAll("\t"," ");
//			token.replaceAll("\n"," ");
//           		summaryText.append(token+" ");
//		}//while
//		summaryVec.add(summaryText);
//	}//while
//
//        /* insert a summary of the paragraphs in the bottom of the html page */
//        count = 0;
//	size = summaryVec.size();
//	StringBuffer textToInsert = new StringBuffer();
//	textToInsert.append("<br><p> <h3> Paragraph Summary: </h3> </p><h4>");
//	while ( count < size ) {
//		textToInsert.append("["+(count+1)+"] -- ");
//		textToInsert.append(((StringBuffer)summaryVec.elementAt(count++)).toString());
//		textToInsert.append("<br><br>");
//		System.out.println("[paragraph "+count+"]: "+((StringBuffer)summaryVec.elementAt(count-1)).toString());
//	}//while
//        textToInsert.append("</h4>");
//	response.entityText = Raveler.insertAtTop(response.entityText,textToInsert.toString());
//
//        response.entityBytes = response.entityText.getBytes();
// 
//	response.localHeaders.put("content-length",""+response.entityBytes.length);
//
//	return response;
    } //execute(HTTPResponse)


    public  void terminate() {
  
    } // terminate()

}//InsertAtTop