Merge pull request #149 from lepdou/2020/config_address

optimize config server address

CHANGELOG.md

@@ -9,3 +9,4 @@
 - [Bugfix: fix circuitbreaker http code greater than 400 as fail response bug](https://github.com/Tencent/spring-cloud-tencent/pull/118)
 - [Feat: optimize router dependency](https://github.com/Tencent/spring-cloud-tencent/pull/115)
 - [feat:add switch of polaris, discovery and register.](https://github.com/Tencent/spring-cloud-tencent/pull/129)
+- [feat:optimize config server address.](https://github.com/Tencent/spring-cloud-tencent/pull/149)

spring-cloud-starter-tencent-polaris-config/src/main/java/com/tencent/cloud/polaris/config/ConfigurationModifier.java

@@ -18,16 +18,19 @@
 
 package com.tencent.cloud.polaris.config;
 
+import java.util.ArrayList;
 import java.util.List;
 
 import com.tencent.cloud.common.constant.ContextConstant;
 import com.tencent.cloud.common.util.AddressUtils;
 import com.tencent.cloud.polaris.config.config.PolarisConfigProperties;
 import com.tencent.cloud.polaris.context.PolarisConfigModifier;
+import com.tencent.cloud.polaris.context.PolarisContextProperties;
 import com.tencent.polaris.factory.config.ConfigurationImpl;
+import org.apache.commons.lang.StringUtils;
+
+import org.springframework.util.CollectionUtils;
 
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.util.StringUtils;
 
 /**
  * Read configuration from spring cloud's configuration file and override polaris.yaml.
@@ -36,21 +39,38 @@ import org.springframework.util.StringUtils;
  */
 public class ConfigurationModifier implements PolarisConfigModifier {
 
-	@Autowired
-	private PolarisConfigProperties polarisConfigProperties;
+	private final PolarisConfigProperties polarisConfigProperties;
+
+	private final PolarisContextProperties polarisContextProperties;
+
+	public ConfigurationModifier(PolarisConfigProperties polarisConfigProperties,
+			PolarisContextProperties polarisContextProperties) {
+		this.polarisConfigProperties = polarisConfigProperties;
+		this.polarisContextProperties = polarisContextProperties;
+	}
 
 	@Override
 	public void modify(ConfigurationImpl configuration) {
+		// set connector type
 		configuration.getConfigFile().getServerConnector().setConnectorType("polaris");
 
-		if (StringUtils.isEmpty(polarisConfigProperties.getAddress())) {
-			return;
+		// set config server address
+		List<String> configAddresses;
+		String configAddressesStr = polarisConfigProperties.getAddress();
+
+		if (StringUtils.isNotEmpty(configAddressesStr)) {
+			configAddresses = AddressUtils.parseAddressList(polarisConfigProperties.getAddress());
+		}
+		else {
+			configAddresses = resolveConfigAddressFromPolarisAddress(polarisContextProperties.getAddress());
 		}
 
-		// override polaris config server address
-		List<String> addresses = AddressUtils.parseAddressList(polarisConfigProperties.getAddress());
+		if (CollectionUtils.isEmpty(configAddresses)) {
+			throw new RuntimeException("Config server address is blank. Please check your config in bootstrap.yml"
+					+ " with spring.cloud.polaris.address or spring.cloud.polaris.config.address");
+		}
 
-		configuration.getConfigFile().getServerConnector().setAddresses(addresses);
+		configuration.getConfigFile().getServerConnector().setAddresses(configAddresses);
 	}
 
 	@Override
@@ -58,4 +78,24 @@ public class ConfigurationModifier implements PolarisConfigModifier {
 		return ContextConstant.ModifierOrder.CONFIG_ORDER;
 	}
 
+	/**
+	 * In most cases, the address of the configuration center is the same as that of Polaris, but the port is different.
+	 * Therefore, the address of the configuration center can be deduced directly from the Polaris address.
+	 *
+	 */
+	private List<String> resolveConfigAddressFromPolarisAddress(String polarisAddress) {
+		if (StringUtils.isEmpty(polarisAddress)) {
+			return null;
+		}
+
+		List<String> polarisAddresses = AddressUtils.parseAddressList(polarisAddress);
+		List<String> configAddresses = new ArrayList<>(polarisAddresses.size());
+
+		for (String address : polarisAddresses) {
+			String ip = StringUtils.substringBeforeLast(address, ":");
+			configAddresses.add(ip + ":" + polarisConfigProperties.getPort());
+		}
+
+		return configAddresses;
+	}
 }

spring-cloud-starter-tencent-polaris-config/src/main/java/com/tencent/cloud/polaris/config/PolarisConfigBootstrapAutoConfiguration.java

@@ -67,8 +67,9 @@ public class PolarisConfigBootstrapAutoConfiguration {
 	}
 
 	@Bean
-	public ConfigurationModifier configurationModifier() {
-		return new ConfigurationModifier();
+	public ConfigurationModifier configurationModifier(PolarisConfigProperties polarisConfigProperties,
+			PolarisContextProperties polarisContextProperties) {
+		return new ConfigurationModifier(polarisConfigProperties, polarisContextProperties);
 	}
 
 }

spring-cloud-starter-tencent-polaris-config/src/main/java/com/tencent/cloud/polaris/config/config/PolarisConfigProperties.java

@@ -39,6 +39,11 @@ public class PolarisConfigProperties {
 	 */
 	private String address;
 
+	/**
+	 * Polaris config grpc port.
+	 */
+	private int port = 8093;
+
 	/**
 	 * Whether to automatically update to the spring context when the configuration file.
 	 * is updated
@@ -66,6 +71,14 @@ public class PolarisConfigProperties {
 		this.address = address;
 	}
 
+	public int getPort() {
+		return port;
+	}
+
+	public void setPort(int port) {
+		this.port = port;
+	}
+
 	public boolean isAutoRefresh() {
 		return autoRefresh;
 	}

spring-cloud-starter-tencent-polaris-config/src/main/resources/META-INF/additional-spring-configuration-metadata.json

@@ -14,6 +14,13 @@
       "description": "The polaris configuration server address.",
       "sourceType": "com.tencent.cloud.polaris.config.config.PolarisConfigProperties"
     },
+    {
+      "name": "spring.cloud.polaris.config.port",
+      "type": "java.lang.Integer",
+      "defaultValue": "8093",
+      "description": "The polaris configuration server port.",
+      "sourceType": "com.tencent.cloud.polaris.config.config.PolarisConfigProperties"
+    },
     {
       "name": "spring.cloud.polaris.config.auto-refresh",
       "type": "java.lang.Boolean",

spring-cloud-tencent-examples/polaris-config-example/src/main/resources/bootstrap.yml

@@ -5,9 +5,9 @@ spring:
     name: polaris-config-example
   cloud:
     polaris:
+      address: grpc://127.0.0.1:8091
       namespace: default
       config:
-        address: grpc://127.0.0.1:8093
         auto-refresh: true # auto refresh when config file changed
         groups:
           - name: ${spring.application.name} # group name