webstart.java

来自「系统运行时的截屏图：webstart_screen01.gif/webstart」· Java 代码 · 共 208 行

/**
 * Copyright(c) 2005 Dragonfly - created by FengChun
 * All Rights Reserved.
 *
 * Package: org.dragonfly.webstart
 * FileName: WebStart.java
 *
 * Version: 1.0
 * Created: 2005-5-13 21:32:28
 * Updated: 2005-5-20 21:32:28
 *
 * Author: FengChun - [e-mail]
 * Description:
 * Function:
 *
 */

package org.dragonfly.webstart.runtime;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;

import org.dragonfly.webstart.util.DateTool;

public class WebStart {
  private static ArrayList pList = new ArrayList();

  public static synchronized ArrayList execDos(String command) throws WebStartException {
    ArrayList lines = new ArrayList();
    BufferedReader reader = null;

    Process process = null;
    try {
      String line = "";
      process =
          Runtime.getRuntime().exec("cmd.exe /c " + command);
      reader =
          new BufferedReader(
          new InputStreamReader(process.getInputStream()));

      while ( (line = reader.readLine()) != null) {
        lines.add(line);
      }
      process.waitFor();
    }
    catch (Exception e) {
      e.printStackTrace();
      throw new WebStartException();
    }

    finally {
      try {
        process = null;
        if (reader != null) {
          reader.close();
          reader = null;
        }
      }
      catch (Exception e) {
        e.printStackTrace();
        throw new WebStartException();
      }
    }

    return lines;
  }

  public static synchronized Process runExe(String command) throws WebStartException{
    if (command == null) {
      return null;
    }

    Process process = null;
    try {
      process = Runtime.getRuntime().exec(command);

      String startTime = DateTool.getNow().toLocaleString();

      pList.add(new ExeProcess(command, process, startTime));

    }
    catch (Exception e) {
      e.printStackTrace();
      throw new WebStartException();
    }

    return process;
  }

  public static ExeProcess getExe(int index) {
    if (index < 0) {
      return null;
    }

    ExeProcess process = (ExeProcess) pList.get(index);

    return process;
  }

  public static synchronized void stopExe(int index) {
    if (index < 0) {
      return;
    }

    Process process = null;
    ExeProcess ep = (ExeProcess) pList.get(index);
    process = ep.getProcess();

    ep.setState(ExeProcess.STOPPED);
    pList.set(index, ep);

    if (process != null) {
      process.destroy();
    }
  }

  public static synchronized Process restartExe(int index) {
    if (index < 0) {
      return null;
    }

    ExeProcess ep = null;
    ep = (ExeProcess) pList.get(index);
    ep.setState(ExeProcess.RUNNING);

    Process process = null;
    try {
      process = Runtime.getRuntime().exec(ep.getName());
      ep.setProcess(process);

      String startTime = DateTool.getNow().toLocaleString();
      ep.setStartTime(startTime);

      pList.set(index, ep);

    }
    catch (IOException e) {
      e.printStackTrace();
    }

    return process;
  }

  public static synchronized void clearExe(int index) {
    if (index < 0) {
      return;
    }

    stopExe(index);
    pList.remove(index);
  }

  public static synchronized void clearExeList(String exeList) {
    if (exeList.length() == 0) {
      return;
    }

    ExeProcess ep = null;
    ArrayList al = new ArrayList();
    for (int i = 0; i < pList.size(); i++) {
      if ((exeList+",").indexOf(i + ",") == -1) {
        ep = (ExeProcess) pList.get(i);
        al.add(ep);
      }else{
        stopExe(i);
      }
    }
    pList = al;
  }

  public static synchronized void clearAll() {
    pList.clear();
  }

  public static ArrayList getRunningExeList() {
    ArrayList a = new ArrayList();

    for (int i = 0; i < pList.size(); i++) {
      ExeProcess ep = (ExeProcess) pList.get(i);
      if (ep.getState() == ExeProcess.RUNNING) {
        a.add(ep);
      }
    }

    return a;
  }

  public static ArrayList getStoppedExeList() {
    ArrayList a = new ArrayList();

    for (int i = 0; i < pList.size(); i++) {
      ExeProcess ep = (ExeProcess) pList.get(i);
      if (ep.getState() == ExeProcess.STOPPED) {
        a.add(ep);
      }
    }

    return a;
  }

  public static ArrayList getExeList() {
    return pList;
  }

}