X-Git-Url: https://git.opendaylight.org/gerrit/gitweb?p=controller.git;a=blobdiff_plain;f=opendaylight%2Fmd-sal%2Fsal-distributed-datastore%2Fsrc%2Fmain%2Fjava%2Forg%2Fopendaylight%2Fcontroller%2Fcluster%2Fdatastore%2FConfigurationImpl.java;h=37b565d2131debe797ca2ab975baf82550740a68;hp=c8c82997dfc0c38bb551049d3a810f33c5cfb417;hb=bc7b4edec3c868a14e0a0de3a3b8e1af2406448b;hpb=9340a64d067473032111bd8c3341ea6855cd9e4a

diff --git a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/ConfigurationImpl.java b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/ConfigurationImpl.java
index c8c82997df..37b565d213 100644
--- a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/ConfigurationImpl.java
+++ b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/ConfigurationImpl.java
@@ -8,29 +8,83 @@
 
 package org.opendaylight.controller.cluster.datastore;
 
+import com.google.common.base.Optional;
+import com.google.common.base.Preconditions;
 import com.typesafe.config.Config;
 import com.typesafe.config.ConfigFactory;
 import com.typesafe.config.ConfigObject;
+import org.opendaylight.controller.cluster.datastore.shardstrategy.DefaultShardStrategy;
+import org.opendaylight.controller.cluster.datastore.shardstrategy.ModuleShardStrategy;
+import org.opendaylight.controller.cluster.datastore.shardstrategy.ShardStrategy;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
+import java.io.File;
 import java.util.ArrayList;
+import java.util.Collections;
+import java.util.HashMap;
 import java.util.List;
+import java.util.Map;
 
 public class ConfigurationImpl implements Configuration {
+
     private final List<ModuleShard> moduleShards = new ArrayList<>();
+
     private final List<Module> modules = new ArrayList<>();
 
+    private static final Logger
+        LOG = LoggerFactory.getLogger(DistributedDataStore.class);
+
+    // Look up maps to speed things up
+
+    // key = memberName, value = list of shardNames
+    private Map<String, List<String>> memberShardNames = new HashMap<>();
+
+    // key = shardName, value = list of replicaNames (replicaNames are the same as memberNames)
+    private Map<String, List<String>> shardReplicaNames = new HashMap<>();
+
 
     public ConfigurationImpl(String moduleShardsConfigPath,
+
         String modulesConfigPath){
-        Config moduleShardsConfig = ConfigFactory.load(moduleShardsConfigPath);
-        Config modulesConfig = ConfigFactory.load(modulesConfigPath);
+
+        Preconditions.checkNotNull(moduleShardsConfigPath, "moduleShardsConfigPath should not be null");
+        Preconditions.checkNotNull(modulesConfigPath, "modulesConfigPath should not be null");
+
+
+        File moduleShardsFile = new File("./configuration/initial/" + moduleShardsConfigPath);
+        File modulesFile = new File("./configuration/initial/" + 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);
+        }
 
         readModuleShards(moduleShardsConfig);
 
         readModules(modulesConfig);
     }
 
-    public List<String> getMemberShardNames(String memberName){
+    @Override public List<String> getMemberShardNames(String memberName){
+
+        Preconditions.checkNotNull(memberName, "memberName should not be null");
+
+        if(memberShardNames.containsKey(memberName)){
+            return memberShardNames.get(memberName);
+        }
 
         List<String> shards = new ArrayList();
         for(ModuleShard ms : moduleShards){
@@ -42,10 +96,72 @@ public class ConfigurationImpl implements Configuration {
                 }
             }
         }
+
+        memberShardNames.put(memberName, shards);
+
         return shards;
 
     }
 
+    @Override public Optional<String> getModuleNameFromNameSpace(String nameSpace) {
+
+        Preconditions.checkNotNull(nameSpace, "nameSpace should not be null");
+
+        for(Module m : modules){
+            if(m.getNameSpace().equals(nameSpace)){
+                return Optional.of(m.getName());
+            }
+        }
+        return Optional.absent();
+    }
+
+    @Override public Map<String, ShardStrategy> getModuleNameToShardStrategyMap() {
+        Map<String, ShardStrategy> map = new HashMap<>();
+        for(Module m : modules){
+            map.put(m.getName(), m.getShardStrategy());
+        }
+        return map;
+    }
+
+    @Override public List<String> getShardNamesFromModuleName(String moduleName) {
+
+        Preconditions.checkNotNull(moduleName, "moduleName should not be null");
+
+        for(ModuleShard m : moduleShards){
+            if(m.getModuleName().equals(moduleName)){
+                List<String> l = new ArrayList<>();
+                for(Shard s : m.getShards()){
+                    l.add(s.getName());
+                }
+                return l;
+            }
+        }
+
+        return Collections.EMPTY_LIST;
+    }
+
+    @Override public List<String> getMembersFromShardName(String shardName) {
+
+        Preconditions.checkNotNull(shardName, "shardName should not be null");
+
+        if(shardReplicaNames.containsKey(shardName)){
+            return shardReplicaNames.get(shardName);
+        }
+
+        for(ModuleShard ms : moduleShards){
+            for(Shard s : ms.getShards()) {
+                if(s.getName().equals(shardName)){
+                    List<String> replicas = s.getReplicas();
+                    shardReplicaNames.put(shardName, replicas);
+                    return replicas;
+                }
+            }
+        }
+        shardReplicaNames.put(shardName, Collections.EMPTY_LIST);
+        return Collections.EMPTY_LIST;
+    }
+
+
 
     private void readModules(Config modulesConfig) {
         List<? extends ConfigObject> modulesConfigObjectList =
@@ -54,7 +170,7 @@ public class ConfigurationImpl implements Configuration {
         for(ConfigObject o : modulesConfigObjectList){
             ConfigObjectWrapper w = new ConfigObjectWrapper(o);
             modules.add(new Module(w.stringValue("name"), w.stringValue(
-                "namespace"), w.stringValue("sharding-strategy")));
+                "namespace"), w.stringValue("shard-strategy")));
         }
     }
 
@@ -82,7 +198,7 @@ public class ConfigurationImpl implements Configuration {
     }
 
 
-    public static class ModuleShard {
+    private class ModuleShard {
         private final String moduleName;
         private final List<Shard> shards;
 
@@ -100,7 +216,7 @@ public class ConfigurationImpl implements Configuration {
         }
     }
 
-    public static class Shard {
+    private class Shard {
         private final String name;
         private final List<String> replicas;
 
@@ -118,16 +234,20 @@ public class ConfigurationImpl implements Configuration {
         }
     }
 
-    public static class Module {
+    private class Module {
 
         private final String name;
         private final String nameSpace;
-        private final String shardingStrategy;
+        private final ShardStrategy shardStrategy;
 
-        Module(String name, String nameSpace, String shardingStrategy) {
+        Module(String name, String nameSpace, String shardStrategy) {
             this.name = name;
             this.nameSpace = nameSpace;
-            this.shardingStrategy = shardingStrategy;
+            if(ModuleShardStrategy.NAME.equals(shardStrategy)){
+                this.shardStrategy = new ModuleShardStrategy(name, ConfigurationImpl.this);
+            } else {
+                this.shardStrategy = new DefaultShardStrategy();
+            }
         }
 
         public String getName() {
@@ -138,8 +258,8 @@ public class ConfigurationImpl implements Configuration {
             return nameSpace;
         }
 
-        public String getShardingStrategy() {
-            return shardingStrategy;
+        public ShardStrategy getShardStrategy() {
+            return shardStrategy;
         }
     }