foundations/foundation-registry/src/main/java/org/apache/servicecomb/registry/RegistrationManager.java - servicecomb-java-chassis - Git at Google

 /*
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.
  * The ASF licenses this file to You 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.apache.servicecomb.registry;

 import java.net.Inet6Address;
 import java.net.InetSocketAddress;
 import java.net.URI;
 import java.net.URISyntaxException;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.Collections;
 import java.util.List;
 import java.util.concurrent.atomic.AtomicBoolean;
 import java.util.concurrent.atomic.AtomicInteger;

 import org.apache.http.client.utils.URIBuilder;
 import org.apache.servicecomb.foundation.common.event.EnableExceptionPropagation;
 import org.apache.servicecomb.foundation.common.event.EventManager;
 import org.apache.servicecomb.foundation.common.net.IpPort;
 import org.apache.servicecomb.foundation.common.net.NetUtils;
 import org.apache.servicecomb.foundation.common.utils.BeanUtils;
 import org.apache.servicecomb.foundation.common.utils.SPIEnabled;
 import org.apache.servicecomb.foundation.common.utils.SPIServiceUtils;
 import org.apache.servicecomb.registry.api.Registration;
 import org.apache.servicecomb.registry.api.event.MicroserviceInstanceRegisteredEvent;
 import org.apache.servicecomb.registry.api.registry.BasePath;
 import org.apache.servicecomb.registry.api.registry.Microservice;
 import org.apache.servicecomb.registry.api.registry.MicroserviceInstance;
 import org.apache.servicecomb.registry.api.registry.MicroserviceInstanceStatus;
 import org.apache.servicecomb.registry.consumer.MicroserviceManager;
 import org.apache.servicecomb.registry.consumer.StaticMicroserviceVersions;
 import org.apache.servicecomb.registry.definition.MicroserviceNameParser;
 import org.apache.servicecomb.registry.swagger.SwaggerLoader;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;

 import com.google.common.eventbus.Subscribe;
 import com.netflix.config.DynamicPropertyFactory;

 import io.vertx.core.json.jackson.JacksonFactory;
 import io.vertx.core.spi.json.JsonCodec;

 public class RegistrationManager {
   private static final Logger LOGGER = LoggerFactory.getLogger(RegistrationManager.class);

   // value is ip or {interface name}
   public static final String PUBLISH_ADDRESS = "servicecomb.service.publishAddress";

   private static final String PUBLISH_PORT = "servicecomb.{transport_name}.publishPort";

   private static SwaggerLoader swaggerLoader = new SwaggerLoader();

   public static RegistrationManager INSTANCE = new RegistrationManager();

   private final List<Registration> registrationList = new ArrayList<>();

   private Registration primary;

   private RegistrationManager() {
     SPIServiceUtils.getOrLoadSortedService(Registration.class)
         .stream()
         .filter((SPIEnabled::enabled))
         .forEach(registrationList::add);
     initPrimary();
   }

   public MicroserviceInstance getMicroserviceInstance() {
     return primary.getMicroserviceInstance();
   }

   public Microservice getMicroservice() {
     assertPrimaryNotNull();
     return primary.getMicroservice();
   }

   private void assertPrimaryNotNull() {
     if (primary == null) {
       throw new NullPointerException("At least one Registration implementation configured. Missed"
           + " to include dependency ? e.g. <artifactId>registry-service-center</artifactId>");
     }
   }

   public String getAppId() {
     assertPrimaryNotNull();
     return primary.getAppId();
   }

   public SwaggerLoader getSwaggerLoader() {
     return swaggerLoader;
   }

   public void updateMicroserviceInstanceStatus(
       MicroserviceInstanceStatus status) {
     registrationList
         .forEach(registration -> registration.updateMicroserviceInstanceStatus(status));
   }

   public void addSchema(String schemaId, String content) {
     registrationList
         .forEach(registration -> registration.addSchema(schemaId, content));
   }

   public void addEndpoint(String endpoint) {
     registrationList
         .forEach(registration -> registration.addEndpoint(endpoint));
   }

   public void addBasePath(Collection<BasePath> basePaths) {
     registrationList
         .forEach(registration -> registration.addBasePath(basePaths));
   }

   public void destroy() {
     registrationList.forEach(registration -> registration.destroy());
   }

   public void run() {
     EventManager.getEventBus().register(new AfterServiceInstanceRegistryHandler(registrationList.size()));
     registrationList.forEach(registration -> registration.run());
   }

   public void init() {
     BeanUtils.addBeans(Registration.class, registrationList);

     initPrimary();
     registrationList.forEach(registration -> registration.init());
   }

   private void initPrimary() {
     if (registrationList.isEmpty()) {
       LOGGER.warn("No registration is enabled. Fix this if only in unit tests.");
       primary = null;
     } else {
       primary = registrationList.get(0);
     }
   }

   /**
    * <p>
    * Register a third party service if not registered before, and set it's instances into
    * {@linkplain StaticMicroserviceVersions StaticMicroserviceVersions}.
    * </p>
    * <p>
    * The registered third party service has the same {@code appId} and {@code environment} as this microservice instance has,
    * and there is only one schema represented by {@code schemaIntfCls}, whose name is the same as {@code microserviceName}.
    * </p>
    * <em>
    *   This method is for initializing 3rd party service endpoint config.
    *   i.e. If this service has not been registered before, this service will be registered and the instances will be set;
    *   otherwise, NOTHING will happen.
    * </em>
    *
    * @param microserviceName name of the 3rd party service, and this param also specifies the schemaId
    * @param version version of this 3rd party service
    * @param instances the instances of this 3rd party service. Users only need to specify the endpoint information, other
    * necessary information will be generate and set in the implementation of this method.
    * @param schemaIntfCls the producer interface of the service. This interface is used to generate swagger schema and
    * can also be used for the proxy interface of RPC style invocation.
    */
   public void registerMicroserviceMapping(String microserviceName, String version, List<MicroserviceInstance> instances,
       Class<?> schemaIntfCls) {
     MicroserviceNameParser parser = new MicroserviceNameParser(getAppId(), microserviceName);
     MicroserviceManager microserviceManager = DiscoveryManager.INSTANCE.getAppManager()
         .getOrCreateMicroserviceManager(parser.getAppId());
     microserviceManager.getVersionsByName()
         .computeIfAbsent(microserviceName,
             svcName -> new StaticMicroserviceVersions(DiscoveryManager.INSTANCE.getAppManager(), parser.getAppId(),
                 microserviceName)
                 .init(schemaIntfCls, version, instances)
         );
   }

   /**
    * @see #registerMicroserviceMapping(String, String, List, Class)
    * @param endpoints the endpoints of 3rd party service. Each of endpoints will be treated as a separated instance.
    * Format of the endpoints is the same as the endpoints that ServiceComb microservices register in service-center,
    * like {@code rest://127.0.0.1:8080}
    */
   public void registerMicroserviceMappingByEndpoints(String microserviceName, String version,
       List<String> endpoints, Class<?> schemaIntfCls) {
     ArrayList<MicroserviceInstance> microserviceInstances = new ArrayList<>();
     for (String endpoint : endpoints) {
       MicroserviceInstance instance = new MicroserviceInstance();
       instance.setEndpoints(Collections.singletonList(endpoint));
       microserviceInstances.add(instance);
     }

     registerMicroserviceMapping(microserviceName, version, microserviceInstances, schemaIntfCls);
   }

   public static String getPublishAddress() {
     String publicAddressSetting =
         DynamicPropertyFactory.getInstance().getStringProperty(PUBLISH_ADDRESS, "").get();
     publicAddressSetting = publicAddressSetting.trim();
     if (publicAddressSetting.isEmpty()) {
       return NetUtils.getHostAddress();
     }

     // placeholder is network interface name
     if (publicAddressSetting.startsWith("{") && publicAddressSetting.endsWith("}")) {
       return NetUtils
           .ensureGetInterfaceAddress(publicAddressSetting.substring(1, publicAddressSetting.length() - 1))
           .getHostAddress();
     }

     return publicAddressSetting;
   }

   public static String getPublishHostName() {
     String publicAddressSetting =
         DynamicPropertyFactory.getInstance().getStringProperty(PUBLISH_ADDRESS, "").get();
     publicAddressSetting = publicAddressSetting.trim();
     if (publicAddressSetting.isEmpty()) {
       return NetUtils.getHostName();
     }

     if (publicAddressSetting.startsWith("{") && publicAddressSetting.endsWith("}")) {
       return NetUtils
           .ensureGetInterfaceAddress(publicAddressSetting.substring(1, publicAddressSetting.length() - 1))
           .getHostName();
     }

     return publicAddressSetting;
   }

   /**
    * In the case that listening address configured as 0.0.0.0, the publish address will be determined
    * by the query result for the net interfaces.
    *
    * @return the publish address, or {@code null} if the param {@code address} is null.
    */
   public static String getPublishAddress(String schema, String address) {
     if (address == null) {
       return address;
     }

     try {
       URI originalURI = new URI(schema + "://" + address);
       IpPort ipPort = NetUtils.parseIpPort(originalURI);
       if (ipPort == null) {
         LOGGER.warn("address {} not valid.", address);
         return null;
       }

       IpPort publishIpPort = genPublishIpPort(schema, ipPort);
       URIBuilder builder = new URIBuilder(originalURI);
       return builder.setHost(publishIpPort.getHostOrIp()).setPort(publishIpPort.getPort()).build().toString();
     } catch (URISyntaxException e) {
       LOGGER.warn("address {} not valid.", address);
       return null;
     }
   }

   private static IpPort genPublishIpPort(String schema, IpPort ipPort) {
     String publicAddressSetting = DynamicPropertyFactory.getInstance()
         .getStringProperty(PUBLISH_ADDRESS, "")
         .get();
     publicAddressSetting = publicAddressSetting.trim();

     String publishPortKey = PUBLISH_PORT.replace("{transport_name}", schema);
     int publishPortSetting = DynamicPropertyFactory.getInstance()
         .getIntProperty(publishPortKey, 0)
         .get();
     int publishPort = publishPortSetting == 0 ? ipPort.getPort() : publishPortSetting;

     if (publicAddressSetting.isEmpty()) {
       InetSocketAddress socketAddress = ipPort.getSocketAddress();
       if (socketAddress.getAddress().isAnyLocalAddress()) {
         String host = NetUtils.getHostAddress();
         if (Inet6Address.class.isInstance(socketAddress.getAddress())) {
           host = NetUtils.getIpv6HostAddress();
         }
         LOGGER.warn("address {}, auto select a host address to publish {}:{}, maybe not the correct one",
             socketAddress,
             host,
             publishPort);
         return new IpPort(host, publishPort);
       }

       return ipPort;
     }

     if (publicAddressSetting.startsWith("{") && publicAddressSetting.endsWith("}")) {
       publicAddressSetting = NetUtils
           .ensureGetInterfaceAddress(
               publicAddressSetting.substring(1, publicAddressSetting.length() - 1))
           .getHostAddress();
     }


     return new IpPort(publicAddressSetting, publishPort);
   }

   public String info() {
     StringBuilder result = new StringBuilder();
     AtomicBoolean first = new AtomicBoolean(true);
     registrationList.forEach(registration -> {
       if (first.getAndSet(false)) {
         result.append("App ID: " + registration.getAppId() + "\n");
         result.append("Service Name: " + registration.getMicroservice().getServiceName() + "\n");
         result.append("Version: " + registration.getMicroservice().getVersion() + "\n");
         result.append("Environment: " + registration.getMicroservice().getEnvironment() + "\n");
         result.append("Endpoints: " + getEndpoints(registration.getMicroserviceInstance().getEndpoints()) + "\n");
         result.append("Registration implementations:\n");
       }

       result.append("  name:" + registration.name() + "\n");
       result.append("    Service ID: " + registration.getMicroservice().getServiceId() + "\n");
       result.append("    Instance ID: " + registration.getMicroserviceInstance().getInstanceId() + "\n");
     });
     return result.toString();
   }

   private String getEndpoints(List<String> endpoints) {
     return JacksonFactory.CODEC.toString(endpoints);
   }

   public static class AfterServiceInstanceRegistryHandler {
     private AtomicInteger instanceRegisterCounter;

     AfterServiceInstanceRegistryHandler(int counter) {
       instanceRegisterCounter = new AtomicInteger(counter);
     }

     @Subscribe
     @EnableExceptionPropagation
     public void afterRegistryInstance(MicroserviceInstanceRegisteredEvent event) {
       LOGGER.info("receive MicroserviceInstanceRegisteredEvent event, registration={}, instance id={}",
           event.getRegistrationName(),
           event.getInstanceId());

       if (instanceRegisterCounter.decrementAndGet() > 0) {
         return;
       }

       EventManager.unregister(this);

       EventManager.getEventBus().post(new MicroserviceInstanceRegisteredEvent(
           "Registration Manager",
           null,
           true
       ));
     }
   }
 }
	/*
	* Licensed to the Apache Software Foundation (ASF) under one or more
	* contributor license agreements. See the NOTICE file distributed with
	* this work for additional information regarding copyright ownership.
	* The ASF licenses this file to You 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.apache.servicecomb.registry;

	import java.net.Inet6Address;
	import java.net.InetSocketAddress;
	import java.net.URI;
	import java.net.URISyntaxException;
	import java.util.ArrayList;
	import java.util.Collection;
	import java.util.Collections;
	import java.util.List;
	import java.util.concurrent.atomic.AtomicBoolean;
	import java.util.concurrent.atomic.AtomicInteger;

	import org.apache.http.client.utils.URIBuilder;
	import org.apache.servicecomb.foundation.common.event.EnableExceptionPropagation;
	import org.apache.servicecomb.foundation.common.event.EventManager;
	import org.apache.servicecomb.foundation.common.net.IpPort;
	import org.apache.servicecomb.foundation.common.net.NetUtils;
	import org.apache.servicecomb.foundation.common.utils.BeanUtils;
	import org.apache.servicecomb.foundation.common.utils.SPIEnabled;
	import org.apache.servicecomb.foundation.common.utils.SPIServiceUtils;
	import org.apache.servicecomb.registry.api.Registration;
	import org.apache.servicecomb.registry.api.event.MicroserviceInstanceRegisteredEvent;
	import org.apache.servicecomb.registry.api.registry.BasePath;
	import org.apache.servicecomb.registry.api.registry.Microservice;
	import org.apache.servicecomb.registry.api.registry.MicroserviceInstance;
	import org.apache.servicecomb.registry.api.registry.MicroserviceInstanceStatus;
	import org.apache.servicecomb.registry.consumer.MicroserviceManager;
	import org.apache.servicecomb.registry.consumer.StaticMicroserviceVersions;
	import org.apache.servicecomb.registry.definition.MicroserviceNameParser;
	import org.apache.servicecomb.registry.swagger.SwaggerLoader;
	import org.slf4j.Logger;
	import org.slf4j.LoggerFactory;

	import com.google.common.eventbus.Subscribe;
	import com.netflix.config.DynamicPropertyFactory;

	import io.vertx.core.json.jackson.JacksonFactory;
	import io.vertx.core.spi.json.JsonCodec;

	public class RegistrationManager {
	private static final Logger LOGGER = LoggerFactory.getLogger(RegistrationManager.class);

	// value is ip or {interface name}
	public static final String PUBLISH_ADDRESS = "servicecomb.service.publishAddress";

	private static final String PUBLISH_PORT = "servicecomb.{transport_name}.publishPort";

	private static SwaggerLoader swaggerLoader = new SwaggerLoader();

	public static RegistrationManager INSTANCE = new RegistrationManager();

	private final List<Registration> registrationList = new ArrayList<>();

	private Registration primary;

	private RegistrationManager() {
	SPIServiceUtils.getOrLoadSortedService(Registration.class)
	.stream()
	.filter((SPIEnabled::enabled))
	.forEach(registrationList::add);
	initPrimary();
	}

	public MicroserviceInstance getMicroserviceInstance() {
	return primary.getMicroserviceInstance();
	}

	public Microservice getMicroservice() {
	assertPrimaryNotNull();
	return primary.getMicroservice();
	}

	private void assertPrimaryNotNull() {
	if (primary == null) {
	throw new NullPointerException("At least one Registration implementation configured. Missed"
	+ " to include dependency ? e.g. <artifactId>registry-service-center</artifactId>");
	}
	}

	public String getAppId() {
	assertPrimaryNotNull();
	return primary.getAppId();
	}

	public SwaggerLoader getSwaggerLoader() {
	return swaggerLoader;
	}

	public void updateMicroserviceInstanceStatus(
	MicroserviceInstanceStatus status) {
	registrationList
	.forEach(registration -> registration.updateMicroserviceInstanceStatus(status));
	}

	public void addSchema(String schemaId, String content) {
	registrationList
	.forEach(registration -> registration.addSchema(schemaId, content));
	}

	public void addEndpoint(String endpoint) {
	registrationList
	.forEach(registration -> registration.addEndpoint(endpoint));
	}

	public void addBasePath(Collection<BasePath> basePaths) {
	registrationList
	.forEach(registration -> registration.addBasePath(basePaths));
	}

	public void destroy() {
	registrationList.forEach(registration -> registration.destroy());
	}

	public void run() {
	EventManager.getEventBus().register(new AfterServiceInstanceRegistryHandler(registrationList.size()));
	registrationList.forEach(registration -> registration.run());
	}

	public void init() {
	BeanUtils.addBeans(Registration.class, registrationList);

	initPrimary();
	registrationList.forEach(registration -> registration.init());
	}

	private void initPrimary() {
	if (registrationList.isEmpty()) {
	LOGGER.warn("No registration is enabled. Fix this if only in unit tests.");
	primary = null;
	} else {
	primary = registrationList.get(0);
	}
	}

	/**
	* <p>
	* Register a third party service if not registered before, and set it's instances into
	* {@linkplain StaticMicroserviceVersions StaticMicroserviceVersions}.
	* </p>
	* <p>
	* The registered third party service has the same {@code appId} and {@code environment} as this microservice instance has,
	* and there is only one schema represented by {@code schemaIntfCls}, whose name is the same as {@code microserviceName}.
	* </p>
	* <em>
	* This method is for initializing 3rd party service endpoint config.
	* i.e. If this service has not been registered before, this service will be registered and the instances will be set;
	* otherwise, NOTHING will happen.
	* </em>
	*
	* @param microserviceName name of the 3rd party service, and this param also specifies the schemaId
	* @param version version of this 3rd party service
	* @param instances the instances of this 3rd party service. Users only need to specify the endpoint information, other
	* necessary information will be generate and set in the implementation of this method.
	* @param schemaIntfCls the producer interface of the service. This interface is used to generate swagger schema and
	* can also be used for the proxy interface of RPC style invocation.
	*/
	public void registerMicroserviceMapping(String microserviceName, String version, List<MicroserviceInstance> instances,
	Class<?> schemaIntfCls) {
	MicroserviceNameParser parser = new MicroserviceNameParser(getAppId(), microserviceName);
	MicroserviceManager microserviceManager = DiscoveryManager.INSTANCE.getAppManager()
	.getOrCreateMicroserviceManager(parser.getAppId());
	microserviceManager.getVersionsByName()
	.computeIfAbsent(microserviceName,
	svcName -> new StaticMicroserviceVersions(DiscoveryManager.INSTANCE.getAppManager(), parser.getAppId(),
	microserviceName)
	.init(schemaIntfCls, version, instances)
	);
	}

	/**
	* @see #registerMicroserviceMapping(String, String, List, Class)
	* @param endpoints the endpoints of 3rd party service. Each of endpoints will be treated as a separated instance.
	* Format of the endpoints is the same as the endpoints that ServiceComb microservices register in service-center,
	* like {@code rest://127.0.0.1:8080}
	*/
	public void registerMicroserviceMappingByEndpoints(String microserviceName, String version,
	List<String> endpoints, Class<?> schemaIntfCls) {
	ArrayList<MicroserviceInstance> microserviceInstances = new ArrayList<>();
	for (String endpoint : endpoints) {
	MicroserviceInstance instance = new MicroserviceInstance();
	instance.setEndpoints(Collections.singletonList(endpoint));
	microserviceInstances.add(instance);
	}

	registerMicroserviceMapping(microserviceName, version, microserviceInstances, schemaIntfCls);
	}

	public static String getPublishAddress() {
	String publicAddressSetting =
	DynamicPropertyFactory.getInstance().getStringProperty(PUBLISH_ADDRESS, "").get();
	publicAddressSetting = publicAddressSetting.trim();
	if (publicAddressSetting.isEmpty()) {
	return NetUtils.getHostAddress();
	}

	// placeholder is network interface name
	if (publicAddressSetting.startsWith("{") && publicAddressSetting.endsWith("}")) {
	return NetUtils
	.ensureGetInterfaceAddress(publicAddressSetting.substring(1, publicAddressSetting.length() - 1))
	.getHostAddress();
	}

	return publicAddressSetting;
	}

	public static String getPublishHostName() {
	String publicAddressSetting =
	DynamicPropertyFactory.getInstance().getStringProperty(PUBLISH_ADDRESS, "").get();
	publicAddressSetting = publicAddressSetting.trim();
	if (publicAddressSetting.isEmpty()) {
	return NetUtils.getHostName();
	}

	if (publicAddressSetting.startsWith("{") && publicAddressSetting.endsWith("}")) {
	return NetUtils
	.ensureGetInterfaceAddress(publicAddressSetting.substring(1, publicAddressSetting.length() - 1))
	.getHostName();
	}

	return publicAddressSetting;
	}

	/**
	* In the case that listening address configured as 0.0.0.0, the publish address will be determined
	* by the query result for the net interfaces.
	*
	* @return the publish address, or {@code null} if the param {@code address} is null.
	*/
	public static String getPublishAddress(String schema, String address) {
	if (address == null) {
	return address;
	}

	try {
	URI originalURI = new URI(schema + "://" + address);
	IpPort ipPort = NetUtils.parseIpPort(originalURI);
	if (ipPort == null) {
	LOGGER.warn("address {} not valid.", address);
	return null;
	}

	IpPort publishIpPort = genPublishIpPort(schema, ipPort);
	URIBuilder builder = new URIBuilder(originalURI);
	return builder.setHost(publishIpPort.getHostOrIp()).setPort(publishIpPort.getPort()).build().toString();
	} catch (URISyntaxException e) {
	LOGGER.warn("address {} not valid.", address);
	return null;
	}
	}

	private static IpPort genPublishIpPort(String schema, IpPort ipPort) {
	String publicAddressSetting = DynamicPropertyFactory.getInstance()
	.getStringProperty(PUBLISH_ADDRESS, "")
	.get();
	publicAddressSetting = publicAddressSetting.trim();

	String publishPortKey = PUBLISH_PORT.replace("{transport_name}", schema);
	int publishPortSetting = DynamicPropertyFactory.getInstance()
	.getIntProperty(publishPortKey, 0)
	.get();
	int publishPort = publishPortSetting == 0 ? ipPort.getPort() : publishPortSetting;

	if (publicAddressSetting.isEmpty()) {
	InetSocketAddress socketAddress = ipPort.getSocketAddress();
	if (socketAddress.getAddress().isAnyLocalAddress()) {
	String host = NetUtils.getHostAddress();
	if (Inet6Address.class.isInstance(socketAddress.getAddress())) {
	host = NetUtils.getIpv6HostAddress();
	}
	LOGGER.warn("address {}, auto select a host address to publish {}:{}, maybe not the correct one",
	socketAddress,
	host,
	publishPort);
	return new IpPort(host, publishPort);
	}

	return ipPort;
	}

	if (publicAddressSetting.startsWith("{") && publicAddressSetting.endsWith("}")) {
	publicAddressSetting = NetUtils
	.ensureGetInterfaceAddress(
	publicAddressSetting.substring(1, publicAddressSetting.length() - 1))
	.getHostAddress();
	}


	return new IpPort(publicAddressSetting, publishPort);
	}

	public String info() {
	StringBuilder result = new StringBuilder();
	AtomicBoolean first = new AtomicBoolean(true);
	registrationList.forEach(registration -> {
	if (first.getAndSet(false)) {
	result.append("App ID: " + registration.getAppId() + "\n");
	result.append("Service Name: " + registration.getMicroservice().getServiceName() + "\n");
	result.append("Version: " + registration.getMicroservice().getVersion() + "\n");
	result.append("Environment: " + registration.getMicroservice().getEnvironment() + "\n");
	result.append("Endpoints: " + getEndpoints(registration.getMicroserviceInstance().getEndpoints()) + "\n");
	result.append("Registration implementations:\n");
	}

	result.append(" name:" + registration.name() + "\n");
	result.append(" Service ID: " + registration.getMicroservice().getServiceId() + "\n");
	result.append(" Instance ID: " + registration.getMicroserviceInstance().getInstanceId() + "\n");
	});
	return result.toString();
	}

	private String getEndpoints(List<String> endpoints) {
	return JacksonFactory.CODEC.toString(endpoints);
	}

	public static class AfterServiceInstanceRegistryHandler {
	private AtomicInteger instanceRegisterCounter;

	AfterServiceInstanceRegistryHandler(int counter) {
	instanceRegisterCounter = new AtomicInteger(counter);
	}

	@Subscribe
	@EnableExceptionPropagation
	public void afterRegistryInstance(MicroserviceInstanceRegisteredEvent event) {
	LOGGER.info("receive MicroserviceInstanceRegisteredEvent event, registration={}, instance id={}",
	event.getRegistrationName(),
	event.getInstanceId());

	if (instanceRegisterCounter.decrementAndGet() > 0) {
	return;
	}

	EventManager.unregister(this);

	EventManager.getEventBus().post(new MicroserviceInstanceRegisteredEvent(
	"Registration Manager",
	null,
	true
	));
	}
	}
	}