feature: compatible with file.conf and registry.conf configurations

changes/en-us/develop.md

@@ -5,6 +5,7 @@ Add changes here for all PR submitted to the develop branch.
 ### feature:
 - [[#5476](https://github.com/seata/seata/pull/5476)] First support `native-image` for `seata-client`
 - [[#5495](https://github.com/seata/seata/pull/5495)] console integration saga-statemachine-designer
+- [[#5668](https://github.com/seata/seata/pull/5668)] compatible with file.conf and registry.conf configurations in version 1.4.2 and below
 
 ### bugfix:
 - [[#5682](https://github.com/seata/seata/pull/5682)]  fix saga mode replay context lost startParams

changes/zh-cn/develop.md

@@ -5,6 +5,7 @@
 ### feature:
 - [[#5476](https://github.com/seata/seata/pull/5476)] seata客户端，首次支持 `native-image`
 - [[#5495](https://github.com/seata/seata/pull/5495)] 控制台集成Saga状态机设计器
+- [[#5668](https://github.com/seata/seata/pull/5668)] 兼容1.4.2及以下版本的file.conf/registry.conf配置
 
 ### bugfix:
 - [[#5682](https://github.com/seata/seata/pull/5682)] 修复saga模式下replay context丢失startParams问题

common/src/main/java/io/seata/common/ConfigurationKeys.java

@@ -29,6 +29,7 @@ public interface ConfigurationKeys {
      * The constant FILE_ROOT_REGISTRY.
      */
     String FILE_ROOT_REGISTRY = "registry";
+
     /**
      * The constant FILE_ROOT_CONFIG.
      */
@@ -37,6 +38,22 @@ public interface ConfigurationKeys {
      * The constant FILE_CONFIG_SPLIT_CHAR.
      */
     String FILE_CONFIG_SPLIT_CHAR = ".";
+
+    /**
+     * The constant FILE_ROOT_PREFIX_REGISTRY.
+     */
+    String FILE_ROOT_PREFIX_REGISTRY = FILE_ROOT_REGISTRY + FILE_CONFIG_SPLIT_CHAR;
+
+    /**
+     * The constant FILE_ROOT_PREFIX_CONFIG.
+     */
+    String FILE_ROOT_PREFIX_CONFIG = FILE_ROOT_CONFIG + FILE_CONFIG_SPLIT_CHAR;
+
+    /**
+     * The constant SEATA_FILE_PREFIX_ROOT_CONFIG
+     */
+    String SEATA_FILE_PREFIX_ROOT_CONFIG = SEATA_FILE_ROOT_CONFIG + FILE_CONFIG_SPLIT_CHAR;
+
     /**
      * The constant FILE_ROOT_TYPE.
      */

config/seata-config-core/src/main/java/io/seata/config/ConfigurationFactory.java

@@ -16,6 +16,7 @@
 package io.seata.config;
 
 import java.util.Objects;
+import java.util.Optional;
 
 import io.seata.common.exception.NotSupportYetException;
 import io.seata.common.loader.EnhancedServiceLoader;
@@ -42,32 +43,26 @@ public final class ConfigurationFactory {
 
     private static final String ENV_SEATA_CONFIG_NAME = "SEATA_CONFIG_NAME";
 
-    public static Configuration CURRENT_FILE_INSTANCE;
+    public static volatile Configuration CURRENT_FILE_INSTANCE;
+
+    public static volatile FileConfiguration ORIGIN_FILE_INSTANCE_REGISTRY;
+
+    public static volatile FileConfiguration ORIGIN_FILE_INSTANCE = null;
 
     static {
+        initOriginConfiguraction();
         load();
+        maybeNeedOriginFileInstance();
     }
 
     private static void load() {
-        String seataConfigName = System.getProperty(SYSTEM_PROPERTY_SEATA_CONFIG_NAME);
-        if (seataConfigName == null) {
-            seataConfigName = System.getenv(ENV_SEATA_CONFIG_NAME);
-        }
-        if (seataConfigName == null) {
-            seataConfigName = REGISTRY_CONF_DEFAULT;
-        }
-        String envValue = System.getProperty(ENV_PROPERTY_KEY);
-        if (envValue == null) {
-            envValue = System.getenv(ENV_SYSTEM_KEY);
-        }
-        Configuration configuration = (envValue == null) ? new FileConfiguration(seataConfigName,
-                false) : new FileConfiguration(seataConfigName + "-" + envValue, false);
+        Configuration configuration = ORIGIN_FILE_INSTANCE_REGISTRY;
         Configuration extConfiguration = null;
         try {
             extConfiguration = EnhancedServiceLoader.load(ExtConfigurationProvider.class).provide(configuration);
             if (LOGGER.isInfoEnabled()) {
-                LOGGER.info("load Configuration from :{}", extConfiguration == null ?
-                    configuration.getClass().getSimpleName() : "Spring Configuration");
+                LOGGER.info("load Configuration from :{}",
+                    extConfiguration == null ? configuration.getClass().getSimpleName() : "Spring Configuration");
             }
         } catch (EnhancedServiceNotFoundException e) {
             if (LOGGER.isDebugEnabled()) {
@@ -79,6 +74,27 @@ private static void load() {
         CURRENT_FILE_INSTANCE = extConfiguration == null ? configuration : extConfiguration;
     }
 
+    private static void initOriginConfiguraction() {
+        String seataConfigName = System.getProperty(SYSTEM_PROPERTY_SEATA_CONFIG_NAME);
+        if (seataConfigName == null) {
+            seataConfigName = System.getenv(ENV_SEATA_CONFIG_NAME);
+        }
+        if (seataConfigName == null) {
+            seataConfigName = REGISTRY_CONF_DEFAULT;
+        }
+        String envValue = System.getProperty(ENV_PROPERTY_KEY);
+        if (envValue == null) {
+            envValue = System.getenv(ENV_SYSTEM_KEY);
+        }
+        seataConfigName = envValue == null ? seataConfigName : seataConfigName + "-" + envValue;
+        // create FileConfiguration for read registry.conf
+        ORIGIN_FILE_INSTANCE_REGISTRY = new FileConfiguration(seataConfigName, false);
+    }
+
+    public static FileConfiguration getOriginFileInstanceRegistry() {
+        return ORIGIN_FILE_INSTANCE_REGISTRY;
+    }
+
     private static final String NAME_KEY = "name";
     private static final String FILE_TYPE = "file";
 
@@ -100,28 +116,39 @@ public static Configuration getInstance() {
         return instance;
     }
 
-    private static Configuration buildConfiguration() {
-        String configTypeName = CURRENT_FILE_INSTANCE.getConfig(
-                ConfigurationKeys.FILE_ROOT_CONFIG + ConfigurationKeys.FILE_CONFIG_SPLIT_CHAR
-                        + ConfigurationKeys.FILE_ROOT_TYPE);
-        LOGGER.info("use configuration center type: {}", configTypeName);
+    private static void maybeNeedOriginFileInstance() {
+        if (ConfigType.File == getConfigType()) {
+            String pathDataId = String.join(ConfigurationKeys.FILE_CONFIG_SPLIT_CHAR,
+                    ConfigurationKeys.FILE_ROOT_CONFIG, FILE_TYPE, NAME_KEY);
+            String name = CURRENT_FILE_INSTANCE.getConfig(pathDataId);
+            // create FileConfiguration for read file.conf
+            ORIGIN_FILE_INSTANCE = new FileConfiguration(name);
+        }
+    }
+
+    private static ConfigType getConfigType() {
+        String configTypeName = CURRENT_FILE_INSTANCE.getConfig(ConfigurationKeys.FILE_ROOT_CONFIG
+            + ConfigurationKeys.FILE_CONFIG_SPLIT_CHAR + ConfigurationKeys.FILE_ROOT_TYPE);
         if (StringUtils.isBlank(configTypeName)) {
             throw new NotSupportYetException("config type can not be null");
         }
-        ConfigType configType = ConfigType.getType(configTypeName);
+        return ConfigType.getType(configTypeName);
+    }
+
+    public static Optional<FileConfiguration> getOriginFileInstance() {
+        return Optional.ofNullable(ORIGIN_FILE_INSTANCE);
+    }
 
+    private static Configuration buildConfiguration() {
+        ConfigType configType = getConfigType();
         Configuration extConfiguration = null;
-        Configuration configuration;
-        if (ConfigType.File == configType) {
-            String pathDataId = String.join(ConfigurationKeys.FILE_CONFIG_SPLIT_CHAR,
-                    ConfigurationKeys.FILE_ROOT_CONFIG, FILE_TYPE, NAME_KEY);
-            String name = CURRENT_FILE_INSTANCE.getConfig(pathDataId);
-            configuration = new FileConfiguration(name);
+        Configuration configuration = ORIGIN_FILE_INSTANCE;
+        if (configuration != null) {
             try {
                 extConfiguration = EnhancedServiceLoader.load(ExtConfigurationProvider.class).provide(configuration);
                 if (LOGGER.isInfoEnabled()) {
-                    LOGGER.info("load Configuration from :{}", extConfiguration == null ?
-                        configuration.getClass().getSimpleName() : "Spring Configuration");
+                    LOGGER.info("load Configuration from :{}",
+                        extConfiguration == null ? configuration.getClass().getSimpleName() : "Spring Configuration");
                 }
             } catch (EnhancedServiceNotFoundException ignore) {
 
@@ -152,7 +179,9 @@ private static Configuration buildConfiguration() {
 
     protected static void reload() {
         ConfigurationCache.clear();
+        initOriginConfiguraction();
         load();
+        maybeNeedOriginFileInstance();
         instance = null;
         getInstance();
     }

config/seata-config-core/src/main/java/io/seata/config/FileConfiguration.java

@@ -350,6 +350,10 @@ private void setFailResult(ConfigFuture configFuture) {
 
     }
 
+    public FileConfig getFileConfig() {
+        return fileConfig;
+    }
+
     /**
      * The type FileListener.
      */

config/seata-config-core/src/main/java/io/seata/config/file/FileConfig.java

@@ -15,6 +15,7 @@
  */
 package io.seata.config.file;
 
+import java.util.Map;
 
 /**
  * @author wangwei-ying
@@ -26,5 +27,9 @@ public interface FileConfig {
      */
     String getString(String path);
 
+    /**
+     * @return the all config
+     */
+    Map<String, Object> getAllConfig();
 
 }

config/seata-config-core/src/main/java/io/seata/config/file/SimpleFileConfig.java

@@ -24,6 +24,8 @@
 import io.seata.config.FileConfiguration;
 
 import java.io.File;
+import java.util.HashMap;
+import java.util.Map;
 
 /**
  * @author wangwei-ying
@@ -50,4 +52,12 @@ public SimpleFileConfig(File file, String name) {
     public String getString(String path) {
         return fileConfig.getString(path);
     }
+
+    @Override
+    public Map<String, Object> getAllConfig() {
+        return fileConfig.entrySet().stream().collect(HashMap::new, (m, e) ->
+                        m.put(e.getKey(), e.getValue().unwrapped()),
+            HashMap::putAll);
+    }
+
 }

config/seata-config-core/src/main/java/io/seata/config/file/YamlFileConfig.java

@@ -27,6 +27,7 @@
 import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.io.InputStream;
+import java.util.HashMap;
 import java.util.Map;
 
 /**
@@ -36,34 +37,44 @@
 public class YamlFileConfig implements FileConfig {
 
     private static final Logger LOGGER = LoggerFactory.getLogger(YamlFileConfig.class);
-    private Map configMap;
+    private final Map<String, Object> configMap = new HashMap<>();
 
     public YamlFileConfig(File file, String name) throws IOException {
         Yaml yaml = new Yaml();
         try (InputStream is = new FileInputStream(file)) {
-            configMap = yaml.load(is);
+            flattenConfig("", yaml.loadAs(is, HashMap.class), configMap);
         } catch (FileNotFoundException e) {
             throw new IllegalArgumentException("file not found");
         }
     }
 
-    @Override
-    public String getString(String path) {
-        try {
-            Map config = configMap;
-            String[] dataId = path.split("\\.");
-            for (int i = 0; i < dataId.length - 1; i++) {
-                if (config.containsKey(dataId[i])) {
-                    config = (Map) config.get(dataId[i]);
+    private void flattenConfig(String prefix, Map<String, Object> config, Map<String, Object> flatMap) {
+        for (Map.Entry<String, Object> entry : config.entrySet()) {
+            String key = prefix.isEmpty() ? entry.getKey() : prefix + "." + entry.getKey();
+            Object value = entry.getValue();
+            if (value != null) {
+                if (value instanceof Map) {
+                    flattenConfig(key, (Map<String, Object>)value, flatMap);
                 } else {
-                    return null;
+                    flatMap.put(key, String.valueOf(value));
                 }
             }
-            Object value = config.get(dataId[dataId.length - 1]);
+        }
+    }
+
+    @Override
+    public String getString(String path) {
+        try {
+            Object value = configMap.get(path);
             return value == null ? null : String.valueOf(value);
         } catch (Exception e) {
             LOGGER.warn("get config data error" + path, e);
             return null;
         }
     }
+
+    @Override
+    public Map<String, Object> getAllConfig() {
+        return configMap;
+    }
 }

seata-spring-autoconfigure/seata-spring-autoconfigure-core/src/test/java/io/seata/spring/boot/autoconfigure/properties/config/test/ConfigPropertiesTest.java

@@ -45,7 +45,7 @@ public void testConfigFileProperties() {
         FileConfiguration configuration = mock(FileConfiguration.class);
         Configuration currentConfiguration = EnhancedServiceLoader.load(ExtConfigurationProvider.class).provide(configuration);
 
-        assertEquals(STR_TEST_AAA, currentConfiguration.getConfig("config.type"));
+        assertEquals("file", currentConfiguration.getConfig("config.type"));
         assertEquals(STR_TEST_BBB, currentConfiguration.getConfig("config.dataType"));
     }
 }

seata-spring-autoconfigure/seata-spring-autoconfigure-core/src/test/resources/application-test.properties

@@ -11,7 +11,7 @@
 #    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.
-seata.config.type=aaa
+seata.config.type=file
 seata.config.data-type=bbb
 seata.config.file.name=aaa