Service check TTL (#471)

Closes gh-470

spring-cloud-consul-discovery/src/main/java/org/springframework/cloud/consul/serviceregistry/ConsulServiceRegistry.java

@@ -31,6 +31,7 @@ import com.ecwid.consul.v1.ConsulClient;
 import com.ecwid.consul.v1.QueryParams;
 import com.ecwid.consul.v1.Response;
 import com.ecwid.consul.v1.health.model.Check;
+import com.ecwid.consul.v1.agent.model.NewService;
 
 import static org.springframework.boot.actuate.health.Status.OUT_OF_SERVICE;
 import static org.springframework.boot.actuate.health.Status.UP;
@@ -62,7 +63,8 @@ public class ConsulServiceRegistry implements ServiceRegistry<ConsulRegistration
 		log.info("Registering service with consul: " + reg.getService());
 		try {
 			client.agentServiceRegister(reg.getService(), properties.getAclToken());
-			if (heartbeatProperties.isEnabled() && ttlScheduler != null) {
+			NewService service = reg.getService();
+			if (heartbeatProperties.isEnabled() && ttlScheduler != null && service.getCheck() != null && service.getCheck().getTtl() != null) {
 				ttlScheduler.add(reg.getInstanceId());
 			}
 		}

spring-cloud-consul-discovery/src/test/java/org/springframework/cloud/consul/serviceregistry/ConsulServiceRegistryCheckTtlTests.java

@@ -0,0 +1,100 @@
+/*
+ * Copyright 2013-2017 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.cloud.consul.serviceregistry;
+
+import com.ecwid.consul.v1.agent.model.NewService;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
+import org.springframework.boot.autoconfigure.ImportAutoConfiguration;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.boot.web.server.LocalServerPort;
+import org.springframework.cloud.client.serviceregistry.AutoServiceRegistrationConfiguration;
+import org.springframework.cloud.consul.ConsulAutoConfiguration;
+import org.springframework.cloud.consul.discovery.ConsulDiscoveryProperties;
+import org.springframework.cloud.consul.discovery.TtlScheduler;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.test.context.junit4.SpringRunner;
+
+import java.lang.reflect.Field;
+import java.util.Map;
+
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+
+/**
+ * @author Alexey Savchuk
+ */
+@RunWith(SpringRunner.class)
+@SpringBootTest(classes = ConsulServiceRegistryCheckTtlTests.TestConfig.class, properties = {
+		"spring.application.name=myTestService-S",
+		"spring.cloud.consul.discovery.heartbeat.enabled=true"
+}, webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
+public class ConsulServiceRegistryCheckTtlTests {
+
+	@LocalServerPort
+	private int randomServerPort;
+
+	@Autowired
+	private ConsulDiscoveryProperties discoveryProperties;
+
+	@Autowired
+	private ConsulServiceRegistry consulServiceRegistry;
+
+	@Autowired
+	private ConsulRegistration registration;
+
+	@Autowired
+	private TtlScheduler ttlScheduler;
+
+	private ConsulRegistration createHttpRegistration() {
+		NewService service = registration.getService();
+		NewService.Check httpCheck = new NewService.Check();
+		httpCheck.setHttp(String.format(
+				"%s://%s:%s%s",
+				discoveryProperties.getScheme(),
+				discoveryProperties.getHostname(),
+				randomServerPort,
+				discoveryProperties.getHealthCheckPath()
+		));
+		httpCheck.setInterval(discoveryProperties.getHealthCheckInterval());
+		NewService httpService = new NewService();
+		httpService.setId(service.getId() + "-http");
+		httpService.setName(service.getName() + "-http");
+		httpService.setCheck(httpCheck);
+		return new ConsulRegistration(httpService, discoveryProperties);
+	}
+
+	@Test
+	public void contextLoads() throws NoSuchFieldException, IllegalAccessException {
+		ConsulRegistration httpRegistration = createHttpRegistration();
+		consulServiceRegistry.register(httpRegistration);
+		Field serviceHeartbeatsField = TtlScheduler.class.getDeclaredField("serviceHeartbeats");
+		serviceHeartbeatsField.setAccessible(true);
+		Map serviceHeartbeats = (Map) serviceHeartbeatsField.get(ttlScheduler);
+		assertTrue("Service with heartbeat check not registered in TTL scheduler", serviceHeartbeats.keySet().contains(registration.getInstanceId()));
+		assertFalse("Service with HTTP check registered in TTL scheduler", serviceHeartbeats.keySet().contains(httpRegistration.getInstanceId()));
+	}
+
+	@Configuration
+	@EnableAutoConfiguration
+	@ImportAutoConfiguration({AutoServiceRegistrationConfiguration.class, ConsulAutoConfiguration.class, ConsulAutoServiceRegistrationAutoConfiguration.class})
+	protected static class TestConfig {
+	}
+
+}