/*** * Copyright (c) 2009 Caelum - www.caelum.com.br/opensource All rights reserved. * * 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 * * http://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 br.com.caelum.vraptor.converter; import static com.google.common.base.Strings.isNullOrEmpty; import javax.annotation.Priority; import javax.enterprise.context.ApplicationScoped; import javax.enterprise.inject.Alternative; import javax.interceptor.Interceptor; import br.com.caelum.vraptor.Convert; /** * A no-op converter * * @author Lucas Cavalcanti * @since 3.3.0 * */ @Convert(String.class) @ApplicationScoped @Alternative @Priority(Interceptor.Priority.LIBRARY_BEFORE) public class StringConverter implements Converter<String> { @Override public String convert(String value, Class<? extends String> type) { if (isNullOrEmpty(value)) { return null; } return value; } }