weekinfstore.java

大学生日程管理系统

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.util.Date;
import javax.microedition.rms.RecordStore;
import javax.microedition.rms.RecordStoreException;
import javax.microedition.rms.RecordStoreNotOpenException;

/*
 * 创建日期 2006-12-6
 *
 * TODO 要更改此生成的文件的模板，请转至
 * 窗口 － 首选项 － Java － 代码样式 － 代码模板
 */

/**
 * @author Administrator
 *
 * TODO 要更改此生成的类型注释的模板，请转至
 * 窗口 － 首选项 － Java － 代码样式 － 代码模板
 */
public class WeekInfStore{//保存对课程各种操作的方法的具体实现，后台逻辑运算
                               //建立一个静态记录用于整个程序
	static RecordStore weekinf;
	/**
	 * @param name
	 * @throws Exception
	 */
	public WeekInfStore(){
		try {
			weekinf=RecordStore.openRecordStore("Week_Inf_Store",true);
		}  catch (RecordStoreException e1) {
			
			e1.printStackTrace();
		}
		if(empty(weekinf) ){	
			
				  try {
				  	About about=new About();
					about.set_defalt();
					
				} catch (IOException e3) {
					
					e3.printStackTrace();
				}
			}
		}
	boolean empty(RecordStore rs){
		try {
			if(rs.getNumRecords()==0){
				return true;
			}
		} catch (RecordStoreNotOpenException e) {
			// TODO 自动生成 catch 块
			e.printStackTrace();
		}
		return false;
	}
	static boolean set_word(String s,boolean password){
		 ByteArrayOutputStream byteOutputStream = new ByteArrayOutputStream();

         DataOutputStream dataOutputStream = new DataOutputStream(byteOutputStream);

         
         try {
         	dataOutputStream.writeUTF(s);
			dataOutputStream.flush();
		} catch (IOException e) {
			// TODO 自动生成 catch 块
			e.printStackTrace();
		}
         byte[] recordOut = byteOutputStream.toByteArray();
         if(!password){
	         try {
				weekinf.setRecord(37,recordOut, 0, recordOut.length);
				return true;
			}  catch (RecordStoreException e1) {
				try {
					weekinf.addRecord(recordOut, 0, recordOut.length);
					return true;
			
				} catch (RecordStoreException e4) {
					// TODO 自动生成 catch 块
					e4.printStackTrace();
				}
				e1.printStackTrace();
			}
         }
         else{
	         try {
				weekinf.setRecord(38,recordOut, 0, recordOut.length);
				return true;
			}  catch (RecordStoreException e1) {
				try {
					weekinf.addRecord(recordOut, 0, recordOut.length);
					return true;
			
				} catch (RecordStoreException e4) {
					// TODO 自动生成 catch 块
					e4.printStackTrace();
				}
				e1.printStackTrace();
			}
         }
         
         try {
			dataOutputStream.close();
		} catch (IOException e2) {
			// TODO 自动生成 catch 块
			e2.printStackTrace();
		}
         try {
			byteOutputStream.close();
		} catch (IOException e3) {
			// TODO 自动生成 catch 块
			e3.printStackTrace();
		}
		return false;
		
	}
	

	 static String get_word(boolean password) {
	 	String s=new String();
		ByteArrayInputStream byteInputStream=null;
		DataInputStream dataInputStream =null;
		if(!password){	
			try {
				byteInputStream = new ByteArrayInputStream(weekinf.getRecord(37));
			} catch (RecordStoreException e1) {
				
				e1.printStackTrace();
			}
		}
		else{
			try {
				byteInputStream = new ByteArrayInputStream(weekinf.getRecord(38));
			} catch (RecordStoreException e1) {
				
				e1.printStackTrace();
			}
		}
	       dataInputStream = new DataInputStream(byteInputStream);
        
       try {
       	s=dataInputStream.readUTF();
       	dataInputStream.close();
       	byteInputStream.close();
       	return s;
			
		} catch (IOException e) {
			e.printStackTrace();
		}
		
       return null;
		
	 }
	
	 static boolean  set_term_date(Date begin,Date end) throws IOException{
		
		int[] a=new int[3];
		int[] b=new int[3];
		a=DateManager.get_year_mon_day(begin);
		b=DateManager.get_year_mon_day( end);
		int beginw=DateManager.weekday( begin);
		int endw=DateManager.weekday( end);
		 ByteArrayOutputStream byteOutputStream = new ByteArrayOutputStream();

         DataOutputStream dataOutputStream = new DataOutputStream(byteOutputStream);

         dataOutputStream.writeInt(a[0]);
         dataOutputStream.writeInt(a[1]);
         dataOutputStream.writeInt(a[2]);
         dataOutputStream.writeInt(b[0]);
         dataOutputStream.writeInt(b[1]);
         dataOutputStream.writeInt(b[2]);
         dataOutputStream.writeInt(beginw);
         dataOutputStream.writeInt(endw);
         
        
         try {
			dataOutputStream.flush();
		} catch (IOException e) {
			// TODO 自动生成 catch 块
			e.printStackTrace();
		}

         
         byte[] recordOut = byteOutputStream.toByteArray();
         try {
			weekinf.setRecord(36,recordOut, 0, recordOut.length);
			return true;
		}  catch (RecordStoreException e1) {
			try {
				weekinf.addRecord(recordOut, 0, recordOut.length);
				return true;
		
			} catch (RecordStoreException e4) {
				// TODO 自动生成 catch 块
				e4.printStackTrace();
			}
			e1.printStackTrace();
		}
         
         try {
			dataOutputStream.close();
		} catch (IOException e2) {
			// TODO 自动生成 catch 块
			e2.printStackTrace();
		}
         try {
			byteOutputStream.close();
		} catch (IOException e3) {
			// TODO 自动生成 catch 块
			e3.printStackTrace();
		}
		return false;
		
	}
	
	 static int[] get_term_date() {
	 	int[] d=new int[8];
		ByteArrayInputStream byteInputStream=null;
		DataInputStream dataInputStream =null;
		try {
			byteInputStream = new ByteArrayInputStream(weekinf.getRecord(36));
		}  catch (RecordStoreException e1) {
			
			e1.printStackTrace();
		}
        dataInputStream = new DataInputStream(byteInputStream);
       
        try {
        	for(int i=0;i<8;i++){
			d[i]=dataInputStream.readInt();
					
				}
        	dataInputStream.close();
        	byteInputStream.close();
        	return d;
			
		} catch (IOException e) {
			
			e.printStackTrace();
		}
		
        return null;
		
	 }

	static date get_aday(int weekday,int classth) {
		date one=new date(true);
		ByteArrayInputStream byteInputStream;
		try {
			byteInputStream = new ByteArrayInputStream(weekinf.getRecord((weekday-1)*5+classth));
			DataInputStream dataInputStream = new DataInputStream(byteInputStream);
			one.course1 = dataInputStream.readUTF();
			one.begin1=dataInputStream.readInt();
			one.end1=dataInputStream.readInt();
			one.where1 = dataInputStream.readUTF();
			one.weekday1=weekday;
			one.classth1 =classth;
			dataInputStream.close();
			byteInputStream.close();
		}  catch (Exception e) {
			// TODO 自动生成 catch 块
			e.printStackTrace();
		}
		
		return one;
	}
	
	static boolean add(boolean delete,int weekday,int classth ,String course,int begin,int end,String where) throws IOException{
	       if(weekday<1||weekday>7||classth<1||classth>5||course.equals("")||course==null||where.equals("")||where==null)
	       	return false;
	      
	       int dix=(weekday-1)*5+classth;
	        
	         ByteArrayOutputStream byteOutputStream = new ByteArrayOutputStream();

	         DataOutputStream dataOutputStream = new DataOutputStream(byteOutputStream);
	       if(delete){
	       	
	         dataOutputStream.writeUTF(course);
	         dataOutputStream.writeInt(begin);
	         dataOutputStream.writeInt(end);
	         dataOutputStream.writeUTF(where);
	       }
	       else{
         	date inf=new date(true);
			inf = get_aday(weekday,classth);
			if(inf.course1.equals("无课程")){
         		inf.course1=course;
         		inf.begin1=begin;
         		inf.end1 =end;
         		inf.where1 =where;
         	}
         	else{
         		if(inf.begin1<begin){
         			inf.course1 =inf.course1 +"#"+course;
         			inf.begin1  =inf.begin1  +begin*100;
         			inf.end1  =inf.end1 +end*100;
         			inf.where1  =inf.where1  +"#"+where;
         		}
         		else{
         			inf.course1 =course+"#"+inf.course1 ;
         			inf.begin1  =inf.begin1  *100+begin;
         			inf.end1  =inf.end1 *100+end;
         			inf.where1  =where+"#"+inf.where1  ;
         		}
         	}
	    
	         dataOutputStream.writeUTF(inf.course1 );
	         dataOutputStream.writeInt(inf.begin1 );
	         dataOutputStream.writeInt(inf.end1 );
	         dataOutputStream.writeUTF(inf.where1 );
	       }
	         try {
				dataOutputStream.flush();
			} catch (IOException e) {
			
				e.printStackTrace();
			}
	         byte[] recordOut = byteOutputStream.toByteArray();
	        	
		         try {
					weekinf.setRecord(dix,recordOut, 0, recordOut.length);
					dataOutputStream.close();
					byteOutputStream.close();
					return true;
					
				} catch (RecordStoreException e1) {
					try {
						weekinf.addRecord(recordOut,0,recordOut.length);
						dataOutputStream.close();
						byteOutputStream.close();
						return true;
					}  catch (RecordStoreException e4) {
						// TODO 自动生成 catch 块
						e4.printStackTrace();
					}
					
					e1.printStackTrace();
				}
				return false;
		         
	}
	
	public static date get(int weekday,int Weekth){
		
	   
		if(Weekth<0)
			return null;
		date aDayCourse= new date(false);
		String c1=new String();
		String c2=new String();
		String w1=new String();
		String w2=new String();
		
		int pos;
		int dix;
		dix=(weekday-1)*5;
	
		ByteArrayInputStream byteInputStream;
		DataInputStream dataInputStream;
		
		 for(int i=1;i<=5;i++){
       
        try {
        	byteInputStream = new ByteArrayInputStream(weekinf.getRecord(dix+i));
			 dataInputStream = new DataInputStream(byteInputStream);
			aDayCourse.course[i-1] = dataInputStream.readUTF();
			aDayCourse.begin[i-1]=dataInputStream.readInt();
			aDayCourse.end[i-1]=dataInputStream.readInt();
			aDayCourse.where[i-1] = dataInputStream.readUTF();
			
			if(aDayCourse.begin[i-1]>100){
				 pos=aDayCourse.course[i-1].indexOf("#");
				
				 c1=aDayCourse.course[i-1].substring(0,pos);
			
				 c2=aDayCourse.course[i-1].substring(pos+1,aDayCourse.course[i-1].length());
				
				 
				 pos=aDayCourse.where[i-1].indexOf("#");
				 w1=aDayCourse.where[i-1].substring(0,pos);
				 
				
				 
				 w2=aDayCourse.where[i-1].substring(pos+1,aDayCourse.where[i-1].length());
				 
				
				 
				if(Weekth>aDayCourse.end[i-1]%100){
				aDayCourse.begin[i-1]=aDayCourse.begin[i-1]/100;
				aDayCourse.end[i-1]=aDayCourse.end[i-1]/100;
				aDayCourse.course[i-1]=c2;
				aDayCourse.where[i-1]=w2;
				}
				else{
					aDayCourse.begin[i-1]=aDayCourse.begin[i-1]%100;
					aDayCourse.end[i-1]=aDayCourse.end[i-1]%100;
					aDayCourse.course[i-1]=c1;
					aDayCourse.where[i-1]=w1;
				}
			}
			for(int k=0;k<5;k++){
				if(aDayCourse.end [k]<Weekth||aDayCourse.begin[k] >Weekth)
					aDayCourse.course[k] ="无课程";
			}
			dataInputStream.close();
			byteInputStream.close();
		} catch (Exception e) {
			
			e.printStackTrace();
		}
        }
		
		
        return aDayCourse;	
		
	}
	
	  static void  delete_all() throws IOException{
	  	for(int i=1;i<=7;i++)
	  		for(int j=1;j<=5;j++)
	  	    add(true,i,j,"无课程",0,0,"0");
	  	    Date d=new Date();
	  	    set_term_date(d,d);
	  	    
	 }
	

}