/*
* HSQLEngineServlet.java
*
* 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 Library 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.
*
* Author: Winter Lau (javayou@gmail.com)
* http://dlog4j.sourceforge.net
*/
package com.liusoft.util.hsqldb;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.lang.StringUtils;
/**
* ��������HSQLEngine��С��������������ݿ����������Ӧ������ǰ��ʼ��
* ��˲���ʹ��Struts�IJ��������HSQLDB
* @author Winter Lau
*/
public class HSQLEngineServlet extends HttpServlet {
String path = "/WEB-INF/db";
String database = "mydlog";
int port = 9001;
HSQLEngine engine;
/**
* ִ��HSQLDB���ݿ�������ʼ������
*/
public void init() throws ServletException {
String tPath = getInitParameter("path");
if(StringUtils.isNotEmpty(tPath))
path = tPath;
String tDatabase = getInitParameter("database");
if(StringUtils.isNotEmpty(tDatabase))
database = tDatabase;
String tPort = getInitParameter("port");
if(StringUtils.isNumeric(tPort)){
int nPort = Integer.parseInt(tPort);
if(nPort>1024 && nPort<65536)
port = nPort;
}
String dataPath;
if(path.startsWith("/"))
dataPath = getServletContext().getRealPath(path);
else
dataPath = path;
//��������
engine = HSQLEngine.getEngine(dataPath,port,database);
engine.start();
while(!engine.isRunning()){
try{
Thread.sleep(200);
}catch(Exception e){}
}
log("HSQLEngine of DLOG4J started.");
}
/**
* ���HSQLEngine��״̬��Ϣ
*/
protected void doGet(HttpServletRequest req, HttpServletResponse res)
throws ServletException, IOException {
PrintWriter out = res.getWriter();
if(engine==null)
out.println("HSQLDB Engine initialize failed.");
else
if(engine.isRunning())
out.println("HSQLDB Engine is running...");
else
out.println("HSQLDB Engine is stopped.");
}
/**
* ֹͣ���ݿ�����
*/
public void destroy() {
try{
engine.stop();
}catch(Exception e){}
}
}