Bean validation #Java

HttpMethod

package cn.internetware.yancloud.dataretention.schedule.constraints;

import javax.validation.Constraint;
import javax.validation.Payload;
import java.lang.annotation.*;

/**
 *
 */
@Documented
@Target(ElementType.FIELD)
@Retention(RetentionPolicy.RUNTIME)
@Constraint(validatedBy = HttpMethodValidator.class)
public @interface HttpMethod {
    String message() default "Must be one of GET,POST,PUT,DELETE,HEAD,CONNECT,OPTIONS,TRACE,PATCH";

    Class<?>[] groups() default {};

    Class<? extends Payload>[] payload() default {};

}

HttpMethodValidator

package cn.internetware.yancloud.dataretention.schedule.constraints;

import org.apache.commons.lang3.StringUtils;

import javax.validation.ConstraintValidator;
import javax.validation.ConstraintValidatorContext;
import java.util.Arrays;
import java.util.List;

public class HttpMethodValidator implements ConstraintValidator<HttpMethod, String> {

    private static final List<String> allMethod;

    static {
        final String[] method = {
                "GET",
                "POST",
                "PUT",
                "DELETE",
                "HEAD",
                "CONNECT",
                "OPTIONS",
                "TRACE",
                "PATCH"
        };
        allMethod = Arrays.asList(method);
    }

    @Override
    public boolean isValid(String value, ConstraintValidatorContext context) {
        return StringUtils.isNotBlank(value) && allMethod.contains(value.toUpperCase());
    }
}