Convert FileModuleShardConfigProvider to OSGi DS

[controller.git] / opendaylight / md-sal / sal-distributed-datastore / src / main / java / org / opendaylight / controller / cluster / datastore / config / FileModuleShardConfigProvider.java

diff --git a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/config/FileModuleShardConfigProvider.java b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/config/FileModuleShardConfigProvider.java
index ba28e5dc3ac8c13b27a44d017653a0b156e5304b..7ee67be47c0159b83218820951cf369903f4c598 100644 (file)
--- a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/config/FileModuleShardConfigProvider.java
+++ b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/config/FileModuleShardConfigProvider.java
@@ -8,15 +8,10 @@
 package org.opendaylight.controller.cluster.datastore.config;
 
 import com.typesafe.config.Config;
-import com.typesafe.config.ConfigFactory;
-import com.typesafe.config.ConfigObject;
-import java.io.File;
-import java.util.HashMap;
-import java.util.List;
 import java.util.Map;
-import java.util.stream.Collectors;
-import org.opendaylight.controller.cluster.access.concepts.MemberName;
-import org.opendaylight.controller.cluster.datastore.shardstrategy.ShardStrategyFactory;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Deactivate;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -25,12 +20,17 @@ import org.slf4j.LoggerFactory;
  *
  * @author Thomas Pantelis
  */
-public class FileModuleShardConfigProvider implements ModuleShardConfigProvider {
+@Component(immediate = true, service = ModuleShardConfigProvider.class)
+public class FileModuleShardConfigProvider extends AbstractModuleShardConfigProvider {
     private static final Logger LOG = LoggerFactory.getLogger(FileModuleShardConfigProvider.class);
 
     private final String moduleShardsConfigPath;
     private final String modulesConfigPath;
 
+    public FileModuleShardConfigProvider() {
+        this("./configuration/initial/module-shards.conf", "./configuration/initial/modules.conf");
+    }
+
     public FileModuleShardConfigProvider(final String moduleShardsConfigPath, final String modulesConfigPath) {
         this.moduleShardsConfigPath = moduleShardsConfigPath;
         this.modulesConfigPath = modulesConfigPath;
@@ -38,84 +38,21 @@ public class FileModuleShardConfigProvider implements ModuleShardConfigProvider
 
     @Override
     public Map<String, ModuleConfig.Builder> retrieveModuleConfigs(final Configuration configuration) {
-        final File moduleShardsFile = new File(moduleShardsConfigPath);
-        final File modulesFile = new File(modulesConfigPath);
-
-        Config moduleShardsConfig = null;
-        if (moduleShardsFile.exists()) {
-            LOG.info("module shards config file exists - reading config from it");
-            moduleShardsConfig = ConfigFactory.parseFile(moduleShardsFile);
-        } else {
-            LOG.warn("module shards configuration read from resource");
-            moduleShardsConfig = ConfigFactory.load(moduleShardsConfigPath);
-        }
-
-        Config modulesConfig = null;
-        if (modulesFile.exists()) {
-            LOG.info("modules config file exists - reading config from it");
-            modulesConfig = ConfigFactory.parseFile(modulesFile);
-        } else {
-            LOG.warn("modules configuration read from resource");
-            modulesConfig = ConfigFactory.load(modulesConfigPath);
-        }
+        Config moduleShardsConfig = loadConfigFromPath(moduleShardsConfigPath);
+        Config modulesConfig = loadConfigFromPath(modulesConfigPath);
 
         final Map<String, ModuleConfig.Builder> moduleConfigMap = readModuleShardsConfig(moduleShardsConfig);
         readModulesConfig(modulesConfig, moduleConfigMap, configuration);
-
         return moduleConfigMap;
     }
 
-    private static void readModulesConfig(final Config modulesConfig,
-            final Map<String, ModuleConfig.Builder> moduleConfigMap, final Configuration configuration) {
-        final List<? extends ConfigObject> modulesConfigObjectList = modulesConfig.getObjectList("modules");
-
-        for (final ConfigObject o : modulesConfigObjectList) {
-            final ConfigObjectWrapper wrapper = new ConfigObjectWrapper(o);
-
-            final String moduleName = wrapper.stringValue("name");
-            final ModuleConfig.Builder builder = moduleConfigMap.computeIfAbsent(moduleName, ModuleConfig::builder);
-
-            builder.nameSpace(wrapper.stringValue("namespace"));
-            builder.shardStrategy(ShardStrategyFactory.newShardStrategyInstance(moduleName,
-                    wrapper.stringValue("shard-strategy"), configuration));
-        }
+    @Activate
+    void activate() {
+        LOG.info("Shard configuration provider started");
     }
 
-    private static Map<String, ModuleConfig.Builder> readModuleShardsConfig(final Config moduleShardsConfig) {
-        final List<? extends ConfigObject> moduleShardsConfigObjectList =
-            moduleShardsConfig.getObjectList("module-shards");
-
-        final Map<String, ModuleConfig.Builder> moduleConfigMap = new HashMap<>();
-        for (final ConfigObject moduleShardConfigObject : moduleShardsConfigObjectList) {
-            final String moduleName = moduleShardConfigObject.get("name").unwrapped().toString();
-            final ModuleConfig.Builder builder = ModuleConfig.builder(moduleName);
-
-            final List<? extends ConfigObject> shardsConfigObjectList =
-                moduleShardConfigObject.toConfig().getObjectList("shards");
-
-            for (final ConfigObject shard : shardsConfigObjectList) {
-                final String shardName = shard.get("name").unwrapped().toString();
-                final List<MemberName> replicas = shard.toConfig().getStringList("replicas").stream()
-                        .map(MemberName::forName).collect(Collectors.toList());
-                builder.shardConfig(shardName, replicas);
-            }
-
-            moduleConfigMap.put(moduleName, builder);
-        }
-
-        return moduleConfigMap;
-    }
-
-    private static class ConfigObjectWrapper {
-
-        private final ConfigObject configObject;
-
-        ConfigObjectWrapper(final ConfigObject configObject) {
-            this.configObject = configObject;
-        }
-
-        public String stringValue(final String name) {
-            return configObject.get(name).unwrapped().toString();
-        }
+    @Deactivate
+    void deactivate() {
+        LOG.info("Shard configuration provider stopped");
     }
 }