Java根据参数选择要初始化的类。

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英文:

Java Select which class to initialize by parameter

问题

这是一个关于测试字符串的代码，包括一个主要的 TestConstants 类，其中存储了用于测试的字符串。

  1. public class TestConstants {
  2.    public static final STRING_TEXT;
  3. }

然后，有一个子类 EnglishConstants。如果应用程序使用英语，则将使用这个类：

  1. public class EnglishConstants extends TestConstants {
  2.    public static final STRING_TEXT = "Text in English.";
  3. }

最后，还有一个子类 PortugueseConstants。如果应用程序使用葡萄牙语，则将使用这个类：

  1. public class PortugueseConstants extends TestConstants {
  2.    public static final STRING_TEXT = "Text in Portuguese.";
  3. }

目的是，如果在终端上使用 Maven 构建测试时提供了 "-Dlanguage=" 属性，并根据该属性选择在该语言中的 "STRING_TEXT"。

所以，如果提供了以下命令：

  1. -Dlanguage=pt-pt

那么测试将使用 "TestConstants.STRING_TEXT"，并从 "PortugueseConstants" 类中获取葡萄牙语的值。

英文:

There is a main TestConstant class where the strings for testing are stored.

  1. public class TestConstants {
  2.    public static final STRING_TEXT;
  3. }

Then, there is a child class EnglishConstants. This class will be used if application is using English language:

  1. public class EnglishConstants extends TestConstants {
  2.    public static final STRING_TEXT = "Text in English.";
  3. }

At the end, there is a child class PortugueseConstants. This class will be used if application is using Portuguese language:

  1. public class PortugueseConstants extends TestConstants {
  2.    public static final STRING_TEXT = "Text in Portuguese.";
  3. }

What's the point:
We want if it is possible, when running the test by Maven build from terminal with "-Dlanguage=" property provided, and based on that property "STRING_TEXT" to be selected in that language.
So, if the:

  1. -Dlanguage=pt-pt is provided

Test has then to use "TestConstants.STRING_TEXT" and to take the value in the Portuguese language from the "PortugueseConstants" class.

Tried with factory on this question and answer:
https://stackoverflow.com/a/28602106/9074348

答案1

得分: 0

以下是您要翻译的部分：

"After all investigation I've decided to ask ChatGPT for the help. So, now we have an proper solution for selecting cross-language constants.
Solution:

  1. public class TestConstants {
  2.     public static String STRING_TEXT;
  3.     public static String NEW_TEXT;
  4.     public static String ANOTHER_TEXT;
  5. }
  1. public class EnglishConstants extends TestConstants {
  2.     static {
  3.         STRING_TEXT = "String Text in English.";
  4.         NEW_TEXT = "New Text in English.";
  5.         ANOTHER_TEXT = "Another Text in English.";
  6.     }
  7. }
  1. public class PortugueseConstants extends TestConstants {
  2.     static {
  3.         STRING_TEXT = "String Text in Portuguese.";
  4.         NEW_TEXT = "New Text in Portuguese.";
  5.         ANOTHER_TEXT = "Another Text in Portuguese.";
  6.     }
  7. }
  1. public class ConstantsFactory {
  2.     public static TestConstants getLanguageConstants(String language) {
  3.         switch (language) {
  4.             case "pt-pt":
  5.                 return new PortugueseConstants();
  6.             case "en-us":
  7.             default:
  8.                 return new EnglishConstants();
  9.         }
  10.     }
  11. }
  1. // Usage example
  2. public class MainClass {
  3.     public static void main(String[] args) {
  4.         String language = System.getProperty("language");
  5.         // Initialization of the TestConstant as language by parameter can be stored //in the BaseTest also
  6.         TestConstants languageConstants = ConstantsFactory.getLanguageConstants(language);
  8.         String stringText = languageConstants.STRING_TEXT;
  9.         String newText = languageConstants.NEW_TEXT;
  10.         String anotherText = languageConstants.ANOTHER_TEXT;
  12.         System.out.println("String Text: " + stringText);
  13.         System.out.println("New Text: " + newText);
  14.         System.out.println("Another Text: " + anotherText);
  15.     }
  16. }

如果要运行一些测试，请使用：

  1. mvn clean test -Dlanguage=en-en
英文:

After all investigation I've decided to ask ChatGPT for the help. So, now we have an proper solution for selecting cross-language constants.
Solution:

  1. public class TestConstants {
  2.     public static String STRING_TEXT;
  3.     public static String NEW_TEXT;
  4.     public static String ANOTHER_TEXT;
  5. }
  1. public class EnglishConstants extends TestConstants {
  2.     static {
  3.         STRING_TEXT = "String Text in English.";
  4.         NEW_TEXT = "New Text in English.";
  5.         ANOTHER_TEXT = "Another Text in English.";
  6.     }
  7. }
  1. public class PortugueseConstants extends TestConstants {
  2.     static {
  3.         STRING_TEXT = "String Text in Portuguese.";
  4.         NEW_TEXT = "New Text in Portuguese.";
  5.         ANOTHER_TEXT = "Another Text in Portuguese.";
  6.     }
  7. }
  2. public class ConstantsFactory {
  3.     public static TestConstants getLanguageConstants(String language) {
  4.         switch (language) {
  5.             case "pt-pt":
  6.                 return new PortugueseConstants();
  7.             case "en-us":
  8.             default:
  9.                 return new EnglishConstants();
  10.         }
  11.     }
  12. }
  1. // Usage example
  2. public class MainClass {
  3.     public static void main(String[] args) {
  4.         String language = System.getProperty("language");
  5. // Initialization of the TestConstant as language by parameter can be stored //in the BaseTest also
  6.         TestConstants languageConstants = ConstantsFactory.getLanguageConstants(language);
  8.         String stringText = languageConstants.STRING_TEXT;
  9.         String newText = languageConstants.NEW_TEXT;
  10.         String anotherText = languageConstants.ANOTHER_TEXT;
  12.         System.out.println("String Text: " + stringText);
  13.         System.out.println("New Text: " + newText);
  14.         System.out.println("Another Text: " + anotherText);
  15.     }
  16. }

If you want to run the some test use:

  1. mvn clean test -Dlanguage=en-en

huangapple
  • 本文由 发表于 2023年5月17日 22:16:33
  • 转载请务必保留本文链接：https://go.coder-hub.com/76273096.html
  • java
  • selenium-webdriver
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