database.java

用java实现的红外线通讯源码

/*
Copyright (C) 2003  Sverre Kristian Valskrå

This program 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.

This program 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 this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
*/

package jmirc;

import java.io.*;
import java.util.*;
import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
import javax.microedition.io.*;
import javax.microedition.rms.*;

public class Database {
	String nick = "";
	String altnick = "";
	String host =  "irc.us.ircnet.net";
	int port = 6667;
	String channels = "#jmIrc";
	String realname = "jmIrc user";
	String passwd = "";
	boolean header=true;
	boolean timestamp=false;
	String startupScript = "";
	String encoding = "ISO-8859-1";
	String hilight = "";
	int buflines = 50;
	boolean usepoll=false;
	boolean usehttp=false;
	String gwhost =  "";
	int gwport = 8080;
	String gwpasswd =  "";
	int polltime = 10;

	private final static int NUMREC = 19;
	private final static String NAMEOFSTORE = "jmirccfg";
		
	public Database() {
	}

	/**
	 * returns 
	 */
	public void load() {
		try {
			RecordStore rs = RecordStore.openRecordStore(NAMEOFSTORE, true);
			int size = rs.getNumRecords();
			if (size > 0 && size != NUMREC) {
				rs.closeRecordStore();
				RecordStore.deleteRecordStore(NAMEOFSTORE);
				rs = RecordStore.openRecordStore(NAMEOFSTORE, true);
			}
			if (size != NUMREC) {
				addRecord(rs, nick);
				addRecord(rs, altnick);
				addRecord(rs, host);
				addRecord(rs, new Integer(port).toString());
				addRecord(rs, channels);
				addRecord(rs, realname);

				addRecord(rs, header?"1":"0");
				addRecord(rs, timestamp?"1":"0");
				addRecord(rs, usepoll?"1":"0");
				addRecord(rs, encoding);
				addRecord(rs, new Integer(buflines).toString());
				addRecord(rs, hilight);
				addRecord(rs, startupScript);
				addRecord(rs, passwd);

				addRecord(rs, usehttp?"1":"0");
				addRecord(rs, gwhost);
				addRecord(rs, new Integer(gwport).toString());
				addRecord(rs, gwpasswd);
				addRecord(rs, new Integer(polltime).toString());
			}
			else {
				nick = getRecordString(rs, 1);
				altnick = getRecordString(rs, 2);
				host = getRecordString(rs, 3);
				port = getRecordInt(rs, 4);
				channels = getRecordString(rs, 5);
				realname = getRecordString(rs, 6);

				header = getRecordBoolean(rs, 7);
				timestamp = getRecordBoolean(rs, 8);
				usepoll = getRecordBoolean(rs, 9);
				encoding = getRecordString(rs, 10);
				buflines = getRecordInt(rs, 11);
				hilight = getRecordString(rs, 12);
				startupScript = getRecordString(rs, 13);
				passwd = getRecordString(rs, 14);

				usehttp = getRecordBoolean(rs, 15);
				gwhost = getRecordString(rs, 16);
				gwport = getRecordInt(rs, 17);
				gwpasswd = getRecordString(rs, 18);
				polltime = getRecordInt(rs, 19);
			}
			rs.closeRecordStore();
		}
		catch(Exception e) {
			e.printStackTrace();
			//Debug.writeError(e,display,jmIrc.mainForm);
		}
	}
	
	private String getRecordString(RecordStore rs,int nr) throws Exception {
		byte[] b = rs.getRecord(nr);
		return (b != null) ? new String(b) : "";
	}

	private boolean getRecordBoolean(RecordStore rs,int nr) throws Exception {
		byte[] b  = rs.getRecord(nr);
		return (b != null && new String(b).equals("1"));
	}

	private int getRecordInt(RecordStore rs,int nr) throws Exception {
		byte[] b = rs.getRecord(nr);
		return (b != null) ? Integer.parseInt(new String(b)) : 0;
	}
	
	private void addRecord(RecordStore rs,String s) throws Exception {
		if (s == null) s = "";
		rs.addRecord(s.getBytes(),0,s.length());
	}
	
	private void setRecord(RecordStore rs,int nr,String s) throws Exception {
		if (s == null) s = "";
		rs.setRecord(nr,s.getBytes(),0,s.length());
	}

	public String[] getChannels() {
		return Utils.hasNoValue(channels) ? null :Utils.splitString(channels,",");
	}
	
	public void save_config() {
		try{
			RecordStore rs = RecordStore.openRecordStore(NAMEOFSTORE, true);
			setRecord(rs, 1, nick);
			setRecord(rs, 2, altnick);
			setRecord(rs, 3, host);
			setRecord(rs, 4, new Integer(port).toString());
			setRecord(rs, 5, channels);
			setRecord(rs, 6, realname);
			rs.closeRecordStore();
		}
		catch(Exception e) {
			e.printStackTrace();
			// error in saving settings, should handle this
		}
	}

	public void save_advanced() {
		try {
			RecordStore rs = RecordStore.openRecordStore(NAMEOFSTORE, true);
			setRecord(rs, 7, header?"1":"0");
			setRecord(rs, 8, timestamp?"1":"0");
			setRecord(rs, 9, usepoll?"1":"0");
			setRecord(rs, 10, encoding);
			setRecord(rs, 11, new Integer(buflines).toString());
			setRecord(rs, 12, hilight);
			setRecord(rs, 13, startupScript);
			setRecord(rs, 14, passwd);
			rs.closeRecordStore();
		}
		catch(Exception e) {
			e.printStackTrace();
			// error in saving settings, should handle this
		}
	}

	public void save_http() {
		try {
			RecordStore rs = RecordStore.openRecordStore(NAMEOFSTORE, true);
			setRecord(rs, 15, usehttp?"1":"0");
			setRecord(rs, 16, gwhost);
			setRecord(rs, 17, new Integer(gwport).toString());
			setRecord(rs, 18, gwpasswd);
			setRecord(rs, 19, new Integer(polltime).toString());
			rs.closeRecordStore();
		}
		catch(Exception e) {
			e.printStackTrace();
			// error in saving settings, should handle this
		}
	}
}