package controller; /*Copyright 2004-2005 Univ.Prof. Dipl.-Ing. Dr.techn. Wolfgang SLANY, Andreas Augustin, Sandra Durasiewicz, Bojan Hrnkas, Markus Köberl, Bernhard Kornberger, Susanne Schöberl This file is part of Neptune-Robot-Simulation. Neptune-Robot-Simulation is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. Neptune-Robot-Simulation is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with Neptune-Robot-Simulation; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 US */ import org.xml.sax.helpers.DefaultHandler; import org.xml.sax.Attributes; import java.lang.Integer; import java.net.MalformedURLException; import java.net.URL; import java.net.URI; import java.io.File; import java.net.URISyntaxException; import java.util.LinkedList; /** * class parse the input from game.xml */ public class GameXMLContentHandler extends DefaultHandler { private String wall_picture_; private String way_picture_; private String robot_picture_; private String diamond_picture_; private String start_picture_; private int num_levels_; private int number_; private LinkedList file_; private LinkedList instruction_file_; private LinkedList level_name_; private String current_tag_; private URL document_base_; //----------------------------------------------------------------------------- /** * constructor generates a new Game XML Content Handler */ public GameXMLContentHandler() { document_base_=null; wall_picture_= new String(); way_picture_= new String(); robot_picture_= new String(); diamond_picture_= new String(); start_picture_= new String(); num_levels_ = 0; current_tag_= new String(); file_= new LinkedList(); instruction_file_= new LinkedList(); level_name_= new LinkedList(); } //----------------------------------------------------------------------------- /** * method sets the document base * @param document_base */ public void setDocumentBase(URL document_base) { document_base_=document_base; } //----------------------------------------------------------------------------- /** *Receive notification of the beginning of the document. */ public void startDocument() { //nothing to do here. } //----------------------------------------------------------------------------- /** *Receive notification of the start of an element. *@param attributes - The specified or defaulted attributes. *@param localName - The local name (without prefix), *or the empty string if Namespace processing is not being performed. *@param qualName - The qualified name (with prefix), *or the empty string if qualified names are not available. */ public void startElement(String uri, String localName, String qualName, Attributes attribs) { current_tag_ = qualName; if (current_tag_.equals(new String(TagName.LEVEL))) { num_levels_++; file_.add(num_levels_-1, null); instruction_file_.add(num_levels_-1, null); level_name_.add(num_levels_-1, null); } } //----------------------------------------------------------------------------- /** *Receive notification of character data inside an element. *@param charArray - The characters. *@param start - The start position in the character array. *@param length - The number of characters to use from the character array. */ public void characters(char[] charArray, int start, int length) { if(current_tag_.length() > 0) { String temp_string = new String(charArray, start, length); temp_string = temp_string.trim(); if(temp_string.length()<1) throw new IllegalArgumentException(new String("\"<"+current_tag_+">\"( "+num_levels_+" ) has not a valid argument ")); else if (current_tag_.equals(new String(TagName.WALLPICTURE))) { wall_picture_=temp_string; } else if (current_tag_.equals(new String(TagName.WAYPICTURE))) { way_picture_=temp_string; } else if (current_tag_.equals(new String(TagName.ROBOTPICTURE))) { robot_picture_=temp_string; } else if (current_tag_.equals(new String(TagName.DIAMONDPICTURE))) { diamond_picture_=temp_string; } else if (current_tag_.equals(new String(TagName.STARTPICTURE))) { start_picture_=temp_string; } else if (current_tag_.equals(new String(TagName.FILE))) { try { URL url = new URL(document_base_, temp_string); String file = url.toString(); file_.set(num_levels_-1, file); } catch (MalformedURLException exc) { System.err.println(exc.getMessage()); } } else if (current_tag_.equals(new String(TagName.INSTRUCTIONLIST))) { try { URL url = new URL(document_base_, temp_string); String file = url.toString(); instruction_file_.set(num_levels_-1, file); } catch (MalformedURLException exc) { System.err.println(exc.getMessage()); } } else if (current_tag_.equals(new String(TagName.NAME))) { level_name_.set(num_levels_-1, temp_string); } } } //----------------------------------------------------------------------------- /** *Receive notification of the end of an element. *@param localName - The local name (without prefix), or the empty string if *Namespace processing is not being performed. *@param qName - The qualified XML 1.0 name (with prefix), or the empty string if *qualified names are not available. */ public void endElement(String uri, String localName, String qualName) { current_tag_=""; } //----------------------------------------------------------------------------- /** *Receive notification of the end of the document. */ public void endDocument() { } //----------------------------------------------------------------------------- /** * find out the wall picture * @return wall picture */ public String getWallPicture() { return wall_picture_; } //----------------------------------------------------------------------------- /** * find out the way picture * @return way picture */ public String getWayPicture() { return way_picture_; } //----------------------------------------------------------------------------- /** * find out the robot picture * @return robot picture */ public String getRobotPicture() { return robot_picture_; } //----------------------------------------------------------------------------- /** * find out the diamond picture * @return diamond picture */ public String getDiamondPicture() { return diamond_picture_; } //----------------------------------------------------------------------------- /** * find out the start picture * @return start picture */ public String getStartPicture() { return start_picture_; } //----------------------------------------------------------------------------- /** * find out how many levels the game has * @return num levels */ public int getNumLevels() { return num_levels_; } //----------------------------------------------------------------------------- /** * get the filename of a definite level * @param number * @return filename */ public String getFile(int number) { if (number <= num_levels_ && number > 0) { return ((String)file_.get(number-1)); } else { System.out.println("ERROR getFile: " + number); return null; } } //----------------------------------------------------------------------------- /** * find out the name of all levels * @return list of levelnames */ public LinkedList getLevelNameList() { return (level_name_); } //----------------------------------------------------------------------------- /** * find out the instruction file names * @return list of instruction file names */ public LinkedList getInstructionFileList() { return (instruction_file_); } }