Add getPeerIds to RaftActorContext

[controller.git] / opendaylight / md-sal / sal-akka-raft / src / main / java / org / opendaylight / controller / cluster / raft / RaftActorContext.java

diff --git a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/RaftActorContext.java b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/RaftActorContext.java
index 2e7eb5eb3aaf221e2889b412e0942d7ea71c241c..0c9d698cd5404f0675d11df935351df529b448f2 100644 (file)
--- a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/RaftActorContext.java
+++ b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/RaftActorContext.java
@@ -12,7 +12,12 @@ import akka.actor.ActorRef;
 import akka.actor.ActorSelection;
 import akka.actor.ActorSystem;
 import akka.actor.Props;
+import com.google.common.annotations.VisibleForTesting;
+import com.google.common.base.Supplier;
+import java.util.Collection;
 import java.util.Map;
+import org.opendaylight.controller.cluster.DataPersistenceProvider;
+import org.opendaylight.controller.cluster.raft.policy.RaftPolicy;
 import org.slf4j.Logger;
 
 /**
@@ -23,15 +28,15 @@ import org.slf4j.Logger;
 public interface RaftActorContext {
     /**
      * Create a new local actor
-      * @param props
-     * @return
+     * @param props
+     * @return a reference to the newly created actor
      */
     ActorRef actorOf(Props props);
 
     /**
      * Create a actor selection
      * @param path
-     * @return
+     * @return an actor selection for the given actor path
      */
     ActorSelection actorSelection(String path);
 
@@ -39,54 +44,47 @@ public interface RaftActorContext {
      * Get the identifier for the RaftActor. This identifier represents the
      * name of the actor whose common state is being shared. For example the
      * id could be 'inventory'
+     *
      * @return the identifier
      */
     String getId();
 
     /**
-     * A reference to the RaftActor itself. This could be used to send messages
+     * @return A reference to the RaftActor itself. This could be used to send messages
      * to the RaftActor
-     * @return
      */
     ActorRef getActor();
 
     /**
-     * Get the ElectionTerm information
-     * @return
+     * @return the ElectionTerm information
      */
     ElectionTerm getTermInformation();
 
     /**
-     * index of highest log entry known to be
-     * committed (initialized to 0, increases
-     *    monotonically)
-     * @return
+     * @return index of highest log entry known to be committed (initialized to 0, increases monotonically)
      */
     long getCommitIndex();
 
 
     /**
-     *
+     * @param commitIndex new commit index
      */
     void setCommitIndex(long commitIndex);
 
     /**
-     * index of highest log entry applied to state
-     * machine (initialized to 0, increases
-     *    monotonically)
-     * @return
+     * @return index of highest log entry applied to state machine (initialized to 0, increases monotonically)
      */
     long getLastApplied();
 
 
     /**
-     *
+     * @param lastApplied the index of the last log entry that was applied to the state
      */
     void setLastApplied(long lastApplied);
 
     /**
      *
-     * @param replicatedLog
+     * @param replicatedLog the replicated log of the current RaftActor
      */
     void setReplicatedLog(ReplicatedLog replicatedLog);
 
@@ -101,16 +99,12 @@ public interface RaftActorContext {
     ActorSystem getActorSystem();
 
     /**
-     * Get the logger to be used for logging messages
-     *
-     * @return
+     * @return the logger to be used for logging messages to a log file
      */
     Logger getLogger();
 
     /**
-     * Get a mapping of peerId's to their addresses
-     *
-     * @return
+     * @return a copy of the mapping of peerId's to their addresses
      *
      */
     Map<String, String> getPeerAddresses();
@@ -125,8 +119,14 @@ public interface RaftActorContext {
      */
     String getPeerAddress(String peerId);
 
+    /**
+     * @return the list of peer IDs.
+     */
+    Collection<String> getPeerIds();
+
     /**
      * Add to actor peers
+     *
      * @param name
      * @param address
      */
@@ -166,6 +166,45 @@ public interface RaftActorContext {
      */
     ConfigParams getConfigParams();
 
+    /**
+     *
+     * @return the SnapshotManager for this RaftActor
+     */
     SnapshotManager getSnapshotManager();
 
+    /**
+     *
+     * @return the DataPersistenceProvider for this RaftActor
+     */
+    DataPersistenceProvider getPersistenceProvider();
+
+    /**
+     *
+     * @return true if the RaftActor has followers else false
+     */
+    boolean hasFollowers();
+
+    /**
+     *
+     * @return the total memory used by the ReplicatedLog
+     */
+    long getTotalMemory();
+
+    /**
+     *
+     * @param retriever a supplier of the total memory metric
+     */
+    @VisibleForTesting
+    void setTotalMemoryRetriever(Supplier<Long> retriever);
+
+    /**
+     *
+     * @return the payload version to be used when replicating data
+     */
+    short getPayloadVersion();
+
+    /**
+     * @return an implementation of the RaftPolicy so that the Raft code can be adapted
+     */
+    RaftPolicy getRaftPolicy();
 }