io.quarkiverse.renarde.util.MyParamConverters Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of quarkus-renarde Show documentation
The newest version!
package io.quarkiverse.renarde.util;

import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;

import jakarta.annotation.Priority;
import jakarta.ws.rs.Priorities;
import jakarta.ws.rs.ext.ParamConverter;
import jakarta.ws.rs.ext.ParamConverterProvider;
import jakarta.ws.rs.ext.Provider;

// Allow user providers to have higher precedence
@Priority(Priorities.USER + 1)
@Provider
public class MyParamConverters implements ParamConverterProvider {

    public static class DateParamConverter implements ParamConverter {

        @Override
        public Date fromString(String value) {
            if (StringUtils.isEmpty(value))
                return null;
            if (value.matches("\\d{4}-\\d{2}-\\d{2}")) {
                try {
                    return new SimpleDateFormat("yyyy-MM-dd").parse(value);
                } catch (ParseException e) {
                    throw new RuntimeException(e);
                }
            }
            throw new RuntimeException("Don't know how to deserialise " + value + " as a Date");
        }

        @Override
        public String toString(Date value) {
            // FIXME: is this used?
            if (value == null)
                return null;
            return JavaExtensions.internetDateFormat(value);
        }
    }

    public static class CharacterParamConverter implements ParamConverter {

        @Override
        public Character fromString(String value) {
            if (StringUtils.isEmpty(value))
                return null;
            if (value.length() != 1)
                throw new RuntimeException("Invalid character: " + value);
            return value.charAt(0);
        }

        @Override
        public String toString(Character value) {
            if (value == null)
                return null;
            return value.toString();
        }
    }

    @Override
    public  ParamConverter getConverter(Class rawType, Type genericType, Annotation[] annotations) {
        if (rawType == Date.class)
            return (ParamConverter) new DateParamConverter();
        if (rawType == Character.class || rawType == char.class)
            return (ParamConverter) new CharacterParamConverter();
        return null;
    }

}