IT工程師數位筆記本

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.apache.log4j.Logger;

public class Utility
{
  private static Logger logger = Logger.getLogger(Utility.class);

  private static Integer iCode = Integer.valueOf(1020);

  public static HashMap<String, String> getParamByRequest(String sParam, String sValueSplit, String sParamSplit)
  {
    logger.debug("傳遞過來的參數 => " + sParam);
    HashMap map = new HashMap();

    if ((sParam == null) || ("".equals(sParam))) {
      logger.warn("Class=>Utility Method=>getParamByRequest");
      logger.warn("傳遞的Request參數字符串為NULL或空");
      return map;
    }

    if ((sValueSplit == null) || ("".equals(sValueSplit))) {
      logger.warn("Class=>Utility Method=>getParamByRequest");
      logger.warn("變量與值的分隔符號為NULL或空");
      return map;
    }

    if ((sParamSplit == null) || ("".equals(sParamSplit))) {
      logger.warn("Class=>Utility Method=>getParamByRequest");
      logger.warn("變量與變量之間的分隔符號為NULL或空");
      return map;
    }

    String[] sArgs = sParam.split(sParamSplit);

    for (int i = 0; (sArgs != null) && (i < sArgs.length); i++) {
      String s = sArgs[i];
      String[] sVars = s.split(sValueSplit);
      if ((sVars != null) && (sVars.length > 1)) {
        String name = sVars[0];
        String value = sVars[1];
        map.put(name, value);
      }
    }

    return map;
  }

  public static String parseString(Boolean b)
  {
    String s;
    String s;
    if (b.booleanValue())
      s = "1";
    else {
      s = "0";
    }
    return s;
  }

  public static List getFileListByPath(String sPath)
  {
    List list = new ArrayList();
    if ((sPath == null) || ("".equals(sPath)))
      return list;
    try
    {
      File root = new File(sPath);
      File[] fileList = root.listFiles();
      for (int i = 0; i < fileList.length; i++) {
        if (fileList[i].isHidden()) {
          continue;
        }
        if (fileList[i].isDirectory()) {
          getChildFileListByPath(fileList[i].getPath(), list);
        }
        if (fileList[i].isFile()) {
          String name = fileList[i].getAbsolutePath();
          int index = name.lastIndexOf(File.separator);
          int lastIndex = 0;

          if ("\\".equals(File.separator))
            index++;
          else if ("//".equals(File.separator)) {
            index += 2;
          }

          if ((lastIndex = name.lastIndexOf(".jsp")) > 0) {
            name = name.substring(index);

            if ((name.indexOf("attributes_DW") != -1) || 
              (name.indexOf("filters_DW") != -1) || 
              (name.indexOf("buttons_DW") != -1) || 
              (name.indexOf("dataWindow_DW") != -1))
              continue;
            Map map = new HashMap();
            map.put("name", name);
            map.put("value", fileList[i].getAbsolutePath());
            list.add(map);
          }
        }
      }
    } catch (NullPointerException npe) {
      logger.error("NullPointerException \n" + npe.getMessage());
    } catch (SecurityException se) {
      logger.error("SecurityException \n" + se.getMessage());
    }

    return list;
  }

  private static void getChildFileListByPath(String sParentPath, List<Map<String, String>> list) {
    try {
      File root = new File(sParentPath);
      File[] fileList = root.listFiles();
      for (int i = 0; i < fileList.length; i++) {
        if (fileList[i].isHidden()) {
          continue;
        }
        if (fileList[i].isDirectory()) {
          getChildFileListByPath(fileList[i].getPath(), list);
        }
        if (fileList[i].isFile()) {
          String name = fileList[i].getAbsolutePath();
          int index = name.lastIndexOf(File.separator);
          int lastIndex = 0;

          if ("\\".equals(File.separator))
            index++;
          else if ("//".equals(File.separator)) {
            index += 2;
          }

          if ((lastIndex = name.lastIndexOf(".jsp")) > 0) {
            name = name.substring(index);

            if ((name.indexOf("attributes_DW") != -1) || 
              (name.indexOf("filters_DW") != -1) || 
              (name.indexOf("buttons_DW") != -1) || 
              (name.indexOf("dataWindow_DW") != -1))
              continue;
            Map map = new HashMap();
            map.put("name", name);
            map.put("value", fileList[i].getAbsolutePath());
            list.add(map);
          }
        }
      }
    } catch (NullPointerException npe) {
      logger.error("NullPointerException \n" + npe.getMessage());
    } catch (SecurityException se) {
      logger.error("SecurityException \n" + se.getMessage());
    }
  }

  public byte[] convertObjectToByteArray(Object obj)
  {
    byte[] b = (byte[])null;
    try {
      ByteArrayOutputStream out = new ByteArrayOutputStream();
      ObjectOutputStream oos = new ObjectOutputStream(out);
      oos.writeObject(obj);
      b = out.toByteArray();

      oos.flush();
    } catch (IOException e) {
      logger.error("把對象串行化為字節數組時出錯");
      logger.error(e.getMessage());
      e.printStackTrace();
    }
    return b;
  }

  public Object convertByteArrayToObject(byte[] b)
  {
    Object obj = null;
    try {
      ByteArrayInputStream in = new ByteArrayInputStream(b);
      ObjectInputStream ois = new ObjectInputStream(in);
      obj = ois.readObject();

      ois.close();
      in.close();
    } catch (Exception e) {
      logger.error("把字節數組反串行化為對象時出錯");
      logger.error(e.getMessage());
    }
    return obj;
  }
}