| package designpattern.abstractfactory;public interface IFileWriter {public void writeToFile(String data);} |
| package designpattern.abstractfactory;public interface IPortWriter {public void sendData(String data);} |
package designpattern.abstractfactory;public class PdfWriter implements IFileWriter {@Override
public void writeToFile(String data) {
System.out.println(“Data sent to Pdf: ” + data);
}} |
package designpattern.abstractfactory;public class NotepadWriter implements IFileWriter {@Override
public void writeToFile(String data) {
System.out.println(“Data sent to notepad: ” + data);
}} |
package designpattern.abstractfactory;public class SerialPortWriter implements IPortWriter {@Override
public void sendData(String data) {
System.out.println(“Data sent to serial port: ” + data);
}} |
package designpattern.abstractfactory;public class ParallelPortWriter implements IPortWriter {@Override
public void sendData(String data) {
System.out.println(“Data sent to parallel port: ” + data);
}} |
package designpattern.abstractfactory;public class FileWriterFactory implements IAbstractWriter {@Override
public IFileWriter getFileWriter(FileWriterEnum type) {
switch (type) {
case PdfWriter:
return new PdfWriter();
case NotepadWriter:
return new NotepadWriter();
}
return null;
}@Override
public IPortWriter getPortWriter(PortWriterEnum type) {
return null;
}} |
package designpattern.abstractfactory;public class PortWriterFactory implements IAbstractWriter {@Override
public IPortWriter getPortWriter(PortWriterEnum type) {
switch (type) {
case SerialPortWriter:
return new SerialPortWriter();
case ParallelPortWriter:
return new ParallelPortWriter();
}
return null;
}@Override
public IFileWriter getFileWriter(FileWriterEnum type) {
return null;
}} |
| package designpattern.abstractfactory;public interface IAbstractWriter {public IFileWriter getFileWriter(FileWriterEnum type);public IPortWriter getPortWriter(PortWriterEnum type);} |
package designpattern.abstractfactory;public class AbstractFactory {private static AbstractFactory instance = null;
private static Object lock = new Object();private AbstractFactory() {
}public static AbstractFactory getInstance() {
if (instance == null) {
synchronized (lock) {
if (instance == null)
instance = new AbstractFactory();
}
}
return instance;
}
public IAbstractWriter getAbstractWriter(AbstractWriterEnum type) {
switch (type) {
case FileWriter:
return new FileWriterFactory();
case PortWriter:
return new PortWriterFactory();
}
return null;
}
} |
|
package designpattern.abstractfactory;public class AbstractFactoryMain {public static void main(String[] args) {AbstractFactory abstractFactory = AbstractFactory.getInstance();IAbstractWriter fileFactory = abstractFactory.getAbstractWriter(AbstractWriterEnum.FileWriter);
IAbstractWriter portFactory = abstractFactory.getAbstractWriter(AbstractWriterEnum.PortWriter);
IFileWriter pdfWriter = fileFactory.getFileWriter(FileWriterEnum.PdfWriter);
IFileWriter notepadWriter = fileFactory.getFileWriter(FileWriterEnum.NotepadWriter);
IPortWriter serialWriter = portFactory.getPortWriter(PortWriterEnum.SerialPortWriter);
IPortWriter parallelWriter = portFactory.getPortWriter(PortWriterEnum.ParallelPortWriter);
pdfWriter.writeToFile(“Pdf data”);
notepadWriter.writeToFile(“Notepad data”);
serialWriter.sendData(“Serial port data”);
parallelWriter.sendData(“Parallel port data”);
}
}
|
