架构师训练营 - 作业 3

/*
** Interface  
*/
public interface IComponent { 
  void printTree();
}

import java.util.ArrayList;
import java.util.List;
/* 
**Container component, contain plain function component in it 
*/
public class ContainerComponent implements IComponent{   
  private List<IComponent> list = new ArrayList<IComponent>();   
  private String name;   
  
  public ContainerComponent(String name){        
    this.name = name;    
  }    
 
  public ContainerComponent addSubComponent(IComponent component){        
    list.add(component);        
    return this;    
  }    
  
  @Override    
  public void printTree() {        
    System.out.println("print "+name);        
    list.forEach(IComponent::printTree);    
  }
}

/*
** Plain function component 
*/
public class FunctionComponent implements IComponent{    
  private String name;   
  
  public FunctionComponent(String name){        
    this.name = name;    
  }    
  
  @Override   
  public void printTree() {        
    System.out.println("print "+name);    
  }
}

/*
** Test print the whole component name in tree structure 
*/
public class Test {
  public static void main(String[] args) {        
    IComponent userNameLabel = new FunctionComponent("Lable(用户名)");        
    IComponent userNameTextBox = new FunctionComponent("TextBox(文本框)");        
    IComponent pwdLabel = new FunctionComponent("Lable(密码)");        
    IComponent pwdTextBox = new FunctionComponent("PasswordBox(密码框)");        
    IComponent remeberUserCheckBox = new FunctionComponent("CheckBox(复选框)");        
    IComponent remeberUserTextBox = new FunctionComponent("TextBox(记住用户名)");        
    IComponent forgetPwdLinkLabel = new FunctionComponent("LinkLable(忘记密码)");        
    IComponent frame = new ContainerComponent("Frame(FRAME1)")                
      .addSubComponent(userNameLabel).addSubComponent(userNameTextBox)                
      .addSubComponent(pwdLabel).addSubComponent(pwdTextBox)                
      .addSubComponent(remeberUserCheckBox).addSubComponent(remeberUserTextBox)                
      .addSubComponent(forgetPwdLinkLabel);        
    IComponent logoPicture = new FunctionComponent("Picture(LOGO图片)");        
    IComponent loginButton = new FunctionComponent("Button(登录)");        
    IComponent registerButton = new FunctionComponent("Button(注册)");        
    IComponent winForm = new ContainerComponent("WinForm(WINDOW窗口)")                
      .addSubComponent(logoPicture)                
      .addSubComponent(loginButton)                
      .addSubComponent(registerButton)                
      .addSubComponent(frame);       
    winForm.printTree();    
  }
}