/*
 * Copyright 2017 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.cloud.stream.testing.processor;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.stream.annotation.EnableBinding;
import org.springframework.cloud.stream.annotation.StreamListener;
import org.springframework.cloud.stream.messaging.Processor;
import org.springframework.messaging.handler.annotation.SendTo;

/**
 * The Spring Cloud Stream Processor application,
 * which convert incoming String to its upper case representation.
 *
 * @author Artem Bilan
 *
 */
@SpringBootApplication
@EnableBinding(Processor.class)
public class ToUpperCaseProcessor {

	@StreamListener(Processor.INPUT)
	@SendTo(Processor.OUTPUT)
	public String transform(String payload) {
		return payload.toUpperCase();
	}

	public static void main(String[] args) {
		SpringApplication.run(ToUpperCaseProcessor.class, args);
	}

}
