# PetTypeFormatter.java

    /*
     * Copyright 2012-2019 the original author or authors.
     *
     * Licensed under the Apache License, Version 2.0 (the "License");
     * you may not use this file except in compliance with the License.
     * You may obtain a copy of the License at
     *
     *      https://www.apache.org/licenses/LICENSE-2.0
     *
     * Unless required by applicable law or agreed to in writing, software
     * distributed under the License is distributed on an "AS IS" BASIS,
     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     * See the License for the specific language governing permissions and
     * limitations under the License.
     */
    package org.springframework.samples.petclinic.owner;

    import java.text.ParseException;
    import java.util.Collection;
    import java.util.Locale;

    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.format.Formatter;
    import org.springframework.stereotype.Component;

    /**
     * Instructs Spring MVC on how to parse and print elements of type 'PetType'. Starting from Spring 3.0, Formatters have
     * come as an improvement in comparison to legacy PropertyEditors. See the following links for more details: - The
     * Spring ref doc: https://docs.spring.io/spring-framework/docs/current/spring-framework-reference/core.html#format
     *
     * @author Mark Fisher
     * @author Juergen Hoeller
     * @author Michael Isvy
     */
    @Component
    public class PetTypeFormatter implements Formatter<PetType> {

        private final PetRepository pets;

        @Autowired
        public PetTypeFormatter(PetRepository pets) {
            this.pets = pets;
        }

        @Override
        public String print(PetType petType, Locale locale) {
            return petType.getName();
        }

        @Override
        public PetType parse(String text, Locale locale) throws ParseException {
            Collection<PetType> findPetTypes = this.pets.findPetTypes();
            for (PetType type : findPetTypes) {
                if (type.getName().equals(text)) {
                    return type;
                }
            }
            throw new ParseException("type not found: " + text, 0);
        }

    }