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So i'm a little confused on this one as i've never used random access files before... I'm getting an EOF error when i perform the search method in the clientBroker class.
The error is occurring in the ReadUTF(fName) of the else if statement if the string = "type". I'm not sure if i'm being too clear on this one but i'll put some comments where in the code it's giving the error. Cheers
Here is where i call the clientBroker class
clientBroker broker = new clientBroker();
List<Client> commercialType = new ArrayList<Client>();
List<Client> residentialType = new ArrayList<Client>();
commercialType = broker.search("C", "type");
residentialType = broker.search("R", "type");
Then here is the client class
/**
*
*/
package Assignment3;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.RandomAccessFile;
import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;
import java.util.StringTokenizer;
/**
* @author Mark Hazlett
*
*/
public class clientBroker implements broker
{
private RandomAccessFile file;
private final int RECORD_SIZE = 131;
private final int ADDRESS_FIELD = 52;
private final int CLIENT_TYPE_FIELD = 2;
private final int FNAME_FIELD = 22;
private final int LNAME_FIELD = 22;
private final int ID_FIELD = 8;
private final int PHONE_NUMBER_FIELD = 16;
private final int POSTAL_CODE_FIELD = 9;
public clientBroker()
{
try
{
File testFile = new File("Client.dat");
if(testFile.exists())
{
file = new RandomAccessFile("Client.dat", "rw");
System.out.println("File Created");
}
else
{
// Catch the exception and open the clients.txt file and load it into the random access file
File textFile = new File("res\\clients.txt");
Scanner scanner;
System.out.println("File Not Found");
try
{
scanner = new Scanner(textFile);
while(scanner.hasNext())
{
String clientText = scanner.nextLine();
StringTokenizer tokenizer = new StringTokenizer(clientText, ";");
file = new RandomAccessFile("Client.dat", "rw");
try
{
int recordCounter = 1;
file.seek(0);
String activeStatus = "A";
System.out.println(activeStatus);
String firstName = tokenizer.nextToken();
System.out.print(firstName);
String lastName = tokenizer.nextToken();
System.out.print(lastName);
String addressString = tokenizer.nextToken();
System.out.print(addressString);
String postalCodeString = tokenizer.nextToken();
System.out.print(postalCodeString);
String phoneNumberString = tokenizer.nextToken();
System.out.print(phoneNumberString);
String clientType = tokenizer.nextToken();
System.out.print(clientType + "\n");
file.writeUTF(activeStatus);
file.writeUTF(firstName);
file.writeUTF(lastName);
file.writeUTF(addressString);
file.writeUTF(postalCodeString);
file.writeUTF(phoneNumberString);
file.writeChar(clientType.charAt(0));
file.seek(recordCounter * RECORD_SIZE);
recordCounter++;
System.out.println(firstName);
}
catch (IOException e1)
{
e1.printStackTrace();
}
}
}
catch (FileNotFoundException e1)
{
e1.printStackTrace();
}
}
System.out.println("File Opened ok");
}
catch (FileNotFoundException e)
{
e.printStackTrace();
}
}
@Override
public void persist(Object obj)
{
try
{
String fName = ((Client) obj).getFName();
String lName = ((Client) obj).getLName();
String address = ((Client) obj).getAddress();
String postalCode = ((Client) obj).getPostalCode();
String phoneNumber = ((Client) obj).getPhoneNumber();
String clientType = ((Client) obj).getClientType();
file.seek(getNewPosition());
file.writeChars("A");
file.writeChars(fName);
file.writeChars(lName);
file.writeChars(address);
file.writeChars(postalCode);
file.writeChars(phoneNumber);
file.writeChars(clientType);
}
catch (IOException e)
{
e.printStackTrace();
}
}
/**
*
* @return
* @throws IOException
*/
private long getNewPosition() throws IOException
{
return (long)(file.length() / RECORD_SIZE);
}
/**
*
* @return
* @throws IOException
*/
private int getCurrentFilePointer() throws IOException
{
int n = (int) file.getFilePointer();
return n;
}
@Override
public void remove(Object obj)
{
long removeId =((Client) obj).getId();
try
{
file.seek(removeId);
file.writeChars("D");
}
catch (IOException e)
{
e.printStackTrace();
}
}
@Override
public List search(String search, String type)
{
List<Client> list = new ArrayList<Client>();
if(type.equals("fName"))
{
int counter = 0;
try
{
file.seek(counter);
String activeStatus = file.readLine();
long idNumber = file.readLong();
String fName = file.readLine();
String lName = file.readLine();
String address = file.readLine();
String postalCode = file.readLine();
String phoneNumber = file.readLine();
String clientType = file.readLine();
Client client = new Client(activeStatus, idNumber, fName, lName, address,
postalCode, phoneNumber, clientType);
validate(client);
if(client.getFName().equals(search))
{
list.add(client);
}
counter += RECORD_SIZE;
}
catch (IOException e)
{
e.printStackTrace();
}
catch (InvalidPhoneNumberException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
catch (InvalidPostalCodeException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
}
else if(type.equals("lName"))
{
int counter = 0;
try
{
while(file.readLine() != null)
{
file.seek(counter);
String activeStatus = file.readLine();
long idNumber = file.readLong();
String fName = file.readLine();
String lName = file.readLine();
String address = file.readLine();
String postalCode = file.readLine();
String phoneNumber = file.readLine();
String clientType = file.readLine();
Client client = new Client(activeStatus, idNumber, fName, lName, address,
postalCode, phoneNumber, clientType);
validate(client);
if(client.getLName().equals(search))
{
list.add(client);
}
counter += RECORD_SIZE;
}
}
catch (IOException e)
{
e.printStackTrace();
}
catch (InvalidPhoneNumberException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
catch (InvalidPostalCodeException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
}
else if(type.equals("type"))
{
int counter = 0;
System.out.println("Search Starting");
//Error Is HERE!!!
//Under the String fname is where the issue lies
try
{
System.out.println("Try Succeded");
file.seek(counter);
System.out.println(counter);
String activeStatus = file.readUTF().trim();
System.out.println(activeStatus);
String fName = file.readUTF().trim();
System.out.println(fName);
String lName = file.readUTF().trim();
String address = file.readUTF().trim();
String postalCode = file.readUTF().trim();
String phoneNumber = file.readUTF().trim();
String clientType = file.readUTF().trim();
Client client = new Client(activeStatus, (counter + 1), fName, lName, address,
postalCode, phoneNumber, clientType);
System.out.println(client.toString());
validate(client);
if(client.getClientType().equals(search))
{
list.add(client);
}
counter += RECORD_SIZE;
}
catch (IOException e)
{
e.printStackTrace();
}
catch (InvalidPhoneNumberException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
catch (InvalidPostalCodeException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
}
return list;
}
@Override
public void validate(Object obj) throws InvalidPhoneNumberException, InvalidPostalCodeException
{
String phoneNumber = ((Client) obj).getPhoneNumber();
if(phoneNumber.length() > 14)
{
throw new InvalidPhoneNumberException();
}
String postalCode = ((Client) obj).getPostalCode();
if(postalCode.length() > 7)
{
throw new InvalidPostalCodeException();
}
}
@Override
public void closeBroker()
{
try
{
file.close();
}
catch (IOException e)
{
e.printStackTrace();
}
}
}
PS Sorry for the edits.... the new [code] thing is not working out very well at all for me in safari. It put it all on one line :S
This post has been edited by markhazlett9: 12 March 2009 - 06:54 PM
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