package cn.edu.bjut.chapter3;

public class Ipc {
	private char section; 
	private int mainClass; 
	private char subclass; 
	private int mainGroup; 
	private int subgroup; 
	
	private final char SEPARATOR = '/'; 
	
	public Ipc(char section, int mainClass, char subclass, int mainGroup, int subgroup) {
		this.section = section; 
		this.mainClass = mainClass; 
		this.subclass = subclass; 
		this.mainGroup = mainGroup; 
		this.subgroup = subgroup; 
	}
	
	// example: G09F 17/30
	public Ipc(String symbol) {
		this.section = symbol.charAt(0); 
		this.mainClass = Integer.parseInt(symbol.substring(1, 3)); 
		this.subclass = symbol.charAt(3); 
		
		int pos = symbol.indexOf(SEPARATOR); 
		this.mainGroup = Integer.parseInt(symbol.substring(4, pos).trim()); 
		this.subgroup = Integer.parseInt(symbol.substring(pos + 1)); 
	}

	public char getSection() {
		return section;
	}

	public void setSection(char section) {
		this.section = section;
	}

	public int getMainClass() {
		return mainClass;
	}

	public void setMainClass(int mainClass) {
		this.mainClass = mainClass;
	}

	public char getSubclass() {
		return subclass;
	}

	public void setSubclass(char subclass) {
		this.subclass = subclass;
	}

	public int getMainGroup() {
		return mainGroup;
	}

	public void setMainGroup(int mainGroup) {
		this.mainGroup = mainGroup;
	}

	public int getSubgroup() {
		return subgroup;
	}

	public void setSubgroup(int subgroup) {
		this.subgroup = subgroup;
	}

	@Override
	public String toString() {
		StringBuilder sb = new StringBuilder(); 
		
		sb.append(section); 
		
		String strMainClass = String.format("%2s", mainClass).replace(' ', '0'); 
		sb.append(strMainClass);
		
		sb.append(subclass); 
		
		String strMainGroup = String.format("%4s", mainGroup); 
		sb.append(strMainGroup); 
		
		sb.append(SEPARATOR); 
		
		sb.append(subgroup); 
		
		return sb.toString(); 
	}
	
	public static void main(String[] args) {
		char section = 'A'; 
		int mainClass = 4; 
		char subclass = 'B'; 
		int mainGroup = 55; 
		int subgroup = 56; 
		
		Ipc ipc = new Ipc(section, mainClass, subclass, mainGroup, subgroup); 
		System.out.println(ipc); 
		
		String symbol = "G09F 17/30"; 
		System.out.println(new Ipc(symbol)); 
	}
}