设计模式之策略模式（优化版）

不同的国家身份证不同，识别哈萨克斯坦和乌兹别克斯坦的用户身份证。识别身份证文本信息，并提自身所需要的信息（姓名、身份证号）

抽象策略类

public interface OCRIdentifyStratergy {
    Customer identify(List<String> list,Customer customer);

    CountryEnum getCountryCode();
}

实现类

@Component
public class KZIdentifyStratergyImpl implements OCRIdentifyStratergy {
    @Override
    public Customer identify(List<String> list,Customer customer) {
        String identityFront = list.get(0);
        String regex = "ЖОНЛИИН\\s+(\\d+)";
        Pattern pattern = Pattern.compile(regex);
        Matcher math = pattern.matcher(identityFront);
        if( math.find()){
            String identity = math.group(1);
            customer.setIdentityNumber(identity);
            customer.setTaxId(identity);
        }

        String nameRegex = "ТЕП / ФАМИЛИЯ\\R+(.*?)\\R+.*?АТЫ/ИМЯ\\R+(.*?)(\\R|$)";
        Pattern pattern1 = Pattern.compile(nameRegex);
        Matcher math1 = pattern1.matcher(identityFront);
        if( math1.find()){
            String surname = math1.group(1);
            String name = math1.group(2);
            String fullName = name + " " + surname;
            customer.setContacts(fullName);
        }
        return customer;
    }

    @Override
    public CountryEnum getCountryCode() {
        return CountryEnum.KZ;
    }
}

@Component
public class UZIdentifyStratergyImpl implements OCRIdentifyStratergy {
    @Override
    public Customer identify(List<String> list, Customer customer) {
        String identityFront = list.get(0);
        String nameRegex =  "Familiyasi/Surname\\R+(\\w+)\\R+.*?Ismi/Given name\\(s\\)\\R+(\\w+)";
        Pattern pattern = Pattern.compile(nameRegex,Pattern.DOTALL);
        Matcher matcher = pattern.matcher(identityFront);
        if (matcher.find()) {
            String surname = matcher.group(1);
            String givenName = matcher.group(2);
            String fullName = givenName + " " + surname;
            customer.setContacts(fullName);
        }

        String identityBack = list.get(1);
        String regex = "Shaxsiy raqami Personal number\\s+(\\d+)";
        Pattern pattern1 = Pattern.compile(regex);
        Matcher math1 = pattern1.matcher(identityBack);
        if( math1.find()){
            String identity = math1.group(1);
            customer.setIdentityNumber(identity);
            customer.setTaxId(identity);
        }
        return customer;
    }

    @Override
    public CountryEnum getCountryCode() {
        return CountryEnum.UZ;
    }
}

环境类

@Component
@Slf4j
public class OCRIdentifyContext implements ApplicationContextAware {


    private static final ConcurrentHashMap<CountryEnum,OCRIdentifyStratergy> map = new ConcurrentHashMap<>();


    @Override
    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
        Map<String, OCRIdentifyStratergy> map1 = applicationContext.getBeansOfType(OCRIdentifyStratergy.class);
        map1.forEach((k,v) -> map.put(v.getCountryCode(), v));
        log.info("OCR识别策略上下文初始化完成：{}", JSON.toJSONString(map));
    }

    public static OCRIdentifyStratergy getIdentifyStrategy(CountryEnum typeEnum){
        return map.get(typeEnum);
    }
}

自定义枚举类（countryEnum）