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ProcessFileObject

package test;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.Iterator;

public class ProcessFileObject {

 protected String filename = "";

 protected ProcessFileObject(String filename) {
  this.filename = filename;
 }

 public ObjectOutputStream oos = null;

 public ObjectInputStream ios = null;

 public synchronized boolean insertAssignInfo(String assignid,
   String assigncode, String assignname) {

  ArrayList alist = new ArrayList();
  Assign assign = new Assign();
  assign.setAssigncode(assigncode);
  assign.setAssignid(assignid);
  assign.setAssignname(assignname);
  /*try {
   System.out.println(filename);
   ios = new ObjectInputStream(new FileInputStream(new File(filename)));
   alist = (ArrayList) ios.readObject();
   ios.close();
  } catch (IOException ioe) {
   ioe.printStackTrace();
  } catch (ClassNotFoundException cnfe) {

  }*/
  if (!alist.add(assign)) {
   return false;
  }

  try {
   oos = new ObjectOutputStream(new FileOutputStream(new File(filename)));
   oos.writeObject(alist);
   oos.close();
  } catch (IOException ioe) {
   ioe.printStackTrace();
  }
  return true;
 }

 public synchronized boolean existAssignInfo(String assignid,
   String assigncode, String assignname) {

  ArrayList alist = null;
  Assign assign = null;
  try {
   ios = new ObjectInputStream(new FileInputStream(filename));
   alist = (ArrayList) ios.readObject();
   ios.close();
  } catch (IOException ioe) {

  } catch (ClassNotFoundException cnfe) {

  }
  Iterator iter = alist.iterator();
  while (iter.hasNext()) {
   assign = (Assign) iter.next();
   if (assign.getAssigncode().equals(assigncode)
     && assign.getAssignid().equals(assignid)
     && assign.getAssignname().equals(assignname)) {
    return true;
   }
  }

  return false;
 }

 public synchronized boolean removebyAssigncode(String assigncode) {

  ArrayList alist = null;
  Assign assign = null;
  try {
   ios = new ObjectInputStream(new FileInputStream(filename));
   alist = (ArrayList) ios.readObject();
   ios.close();
  } catch (IOException ioe) {

  } catch (ClassNotFoundException cnfe) {

  }
  for (int i = 0, j = alist.size(); i < j; i++) {
   assign = (Assign) alist.get(i);
   if (assign.getAssigncode().equals(assigncode)) {
    alist.remove(i);
   }
  }
  try {
   oos = new ObjectOutputStream(new FileOutputStream(filename));
   oos.writeObject(alist);
   oos.close();
  } catch (IOException ioe) {

  }

  return true;
 }

 public synchronized boolean removeAll() {

  ArrayList alist = null;
  try {
   oos = new ObjectOutputStream(new FileOutputStream(filename));
   oos.writeObject(alist);
   oos.close();
  } catch (IOException ioe) {

  }

  return true;
 }

 public class Assign implements Serializable {
  public String assignid;

  public String assigncode;

  public String assignname;

  public Assign() {

  }

  public String getAssigncode() {
   return assigncode;
  }

  public void setAssigncode(String assigncode) {
   this.assigncode = assigncode;
  }

  public String getAssignid() {
   return assignid;
  }

  public void setAssignid(String assignid) {
   this.assignid = assignid;
  }

  public String getAssignname() {
   return assignname;
  }

  public void setAssignname(String assignname) {
   this.assignname = assignname;
  }
 }

}

posted on 2007-03-30 23:02 捕风 阅读(326) 评论(0)  编辑  收藏 所属分类: java基础


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