/*
 * Copyright 2002-2017 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
 *
 *      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 org.springframework.integration.jms.config;

import static org.junit.Assert.assertEquals;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Properties;
import java.util.StringTokenizer;

import org.junit.Test;

import org.springframework.context.ConfigurableApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.integration.history.MessageHistory;
import org.springframework.integration.jms.DefaultJmsHeaderMapper;
import org.springframework.integration.support.context.NamedComponent;
import org.springframework.messaging.Message;
import org.springframework.messaging.MessageHeaders;
import org.springframework.messaging.MessagingException;
import org.springframework.messaging.PollableChannel;
import org.springframework.messaging.support.GenericMessage;

/**
 * @author Oleg Zhurakousky
 * @author Mark Fisher
 * @since 2.0
 */
public class JmsMessageHistoryTests {

	@Test
	public void testInboundAdapter() throws Exception {
		ActiveMqTestUtils.prepare();
		ConfigurableApplicationContext applicationContext =
				new ClassPathXmlApplicationContext("MessageHistoryTests-context.xml", JmsMessageHistoryTests.class);
		SampleGateway gateway = applicationContext.getBean("sampleGateway", SampleGateway.class);
		PollableChannel jmsInputChannel = applicationContext.getBean("jmsInputChannel", PollableChannel.class);
		gateway.send("hello");
		Message<?> message = jmsInputChannel.receive(5000);
		Iterator<Properties> historyIterator = message.getHeaders()
				.get(MessageHistory.HEADER_NAME, MessageHistory.class)
				.iterator();
		Properties event1 = historyIterator.next();
		assertEquals("jms:inbound-channel-adapter", event1.getProperty(MessageHistory.TYPE_PROPERTY));
		assertEquals("sampleJmsInboundAdapter", event1.getProperty(MessageHistory.NAME_PROPERTY));
		Properties event2 = historyIterator.next();
		assertEquals("channel", event2.getProperty(MessageHistory.TYPE_PROPERTY));
		assertEquals("jmsInputChannel", event2.getProperty(MessageHistory.NAME_PROPERTY));
		applicationContext.close();
	}


	public interface SampleGateway {

		void send(String value);

		Message<?> echo(String value);

	}


	public static class SampleService {

		public Message<?> echoMessage(String value) {
			return new GenericMessage<String>(value);
		}

	}


	public static class SampleHeaderMapper extends DefaultJmsHeaderMapper {

		public void fromHeaders(MessageHeaders headers, javax.jms.Message jmsMessage) {
			super.fromHeaders(headers, jmsMessage);
			String messageHistory = headers.get(MessageHistory.HEADER_NAME, MessageHistory.class).toString();
			try {
				jmsMessage.setStringProperty("outbound_history", messageHistory);
			}
			catch (Exception e) {
				throw new MessagingException("Problem setting JMS properties", e);
			}
		}

		public Map<String, Object> toHeaders(javax.jms.Message jmsMessage) {
			Map<String, Object> headers = super.toHeaders(jmsMessage);
			List<Properties> history = new ArrayList<Properties>();
			String outboundHistory = (String) headers.get("outbound_history");
			StringTokenizer outerTok = new StringTokenizer(outboundHistory, "[]");
			while (outerTok.hasMoreTokens()) {
				String historyItem = outerTok.nextToken();
				StringTokenizer innerTok = new StringTokenizer(historyItem, ",{} ");
				Properties historyEvent = new Properties();
				while (innerTok.hasMoreTokens()) {
					String prop = innerTok.nextToken();
					String[] keyAndValue = prop.split("=");
					historyEvent.setProperty(keyAndValue[0], keyAndValue[1]);
				}
				history.add(historyEvent);
			}
			headers.put(MessageHistory.HEADER_NAME, history);
			headers.remove("outbound_history");
			return headers;
		}

	}


	public static class SampleComponent implements NamedComponent {

		private String name;

		private String type;

		public SampleComponent(String name, String type) {
			this.name = name;
			this.type = type;
		}

		public String getComponentName() {
			return name;
		}

		public String getComponentType() {
			return type;
		}

	}

}