X-Git-Url: https://git.opendaylight.org/gerrit/gitweb?a=blobdiff_plain;f=opendaylight%2Fmd-sal%2Fsal-akka-raft%2Fsrc%2Fmain%2Fjava%2Forg%2Fopendaylight%2Fcontroller%2Fcluster%2Fexample%2FExampleActor.java;h=2437bb4b7d381ff34a58138a14a7723ee7289a64;hb=e316a0ef36279a72767703d190f38a39d7d49395;hp=cbd7ca2d70f5dc090a1e842b75c200cb0c1976b9;hpb=8e42b08cb626a60919c145b2a46d94114c3905d6;p=controller.git

diff --git a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/example/ExampleActor.java b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/example/ExampleActor.java
index cbd7ca2d70..2437bb4b7d 100644
--- a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/example/ExampleActor.java
+++ b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/example/ExampleActor.java
@@ -12,30 +12,41 @@ import akka.actor.ActorRef;
 import akka.actor.Props;
 import akka.japi.Creator;
 import com.google.common.base.Optional;
+import com.google.protobuf.ByteString;
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.ObjectInputStream;
+import java.io.ObjectOutputStream;
+import java.util.HashMap;
+import java.util.Map;
+import org.opendaylight.controller.cluster.DataPersistenceProvider;
 import org.opendaylight.controller.cluster.example.messages.KeyValue;
 import org.opendaylight.controller.cluster.example.messages.KeyValueSaved;
 import org.opendaylight.controller.cluster.example.messages.PrintRole;
 import org.opendaylight.controller.cluster.example.messages.PrintState;
 import org.opendaylight.controller.cluster.raft.ConfigParams;
 import org.opendaylight.controller.cluster.raft.RaftActor;
+import org.opendaylight.controller.cluster.raft.RaftState;
+import org.opendaylight.controller.cluster.raft.base.messages.CaptureSnapshotReply;
+import org.opendaylight.controller.cluster.raft.behaviors.Leader;
 import org.opendaylight.controller.cluster.raft.protobuff.client.messages.Payload;
 
-import java.util.HashMap;
-import java.util.Map;
-
 /**
  * A sample actor showing how the RaftActor is to be extended
  */
 public class ExampleActor extends RaftActor {
 
-    private final Map<String, String> state = new HashMap();
+    private final Map<String, String> state = new HashMap<>();
+    private final DataPersistenceProvider dataPersistenceProvider;
 
     private long persistIdentifier = 1;
 
 
-    public ExampleActor(String id, Map<String, String> peerAddresses,
-        Optional<ConfigParams> configParams) {
+    public ExampleActor(final String id, final Map<String, String> peerAddresses,
+        final Optional<ConfigParams> configParams) {
         super(id, peerAddresses, configParams);
+        this.dataPersistenceProvider = new PersistentDataProvider();
     }
 
     public static Props props(final String id, final Map<String, String> peerAddresses,
@@ -48,7 +59,7 @@ public class ExampleActor extends RaftActor {
         });
     }
 
-    @Override public void onReceiveCommand(Object message){
+    @Override public void onReceiveCommand(final Object message) throws Exception{
         if(message instanceof KeyValue){
             if(isLeader()) {
                 String persistId = Long.toString(persistIdentifier++);
@@ -60,19 +71,31 @@ public class ExampleActor extends RaftActor {
             }
 
         } else if (message instanceof PrintState) {
-            LOG.debug("State of the node:{} has entries={}, {}",
-                getId(), state.size(), getReplicatedLogState());
+            if(LOG.isDebugEnabled()) {
+                LOG.debug("State of the node:{} has entries={}, {}",
+                    getId(), state.size(), getReplicatedLogState());
+            }
 
         } else if (message instanceof PrintRole) {
-            LOG.debug("{} = {}, Peers={}", getId(), getRaftState(),getPeers());
+            if(LOG.isDebugEnabled()) {
+                String followers = "";
+                if (getRaftState() == RaftState.Leader) {
+                    followers = ((Leader)this.getCurrentBehavior()).printFollowerStates();
+                    LOG.debug("{} = {}, Peers={}, followers={}", getId(), getRaftState(), getPeers(), followers);
+                } else {
+                    LOG.debug("{} = {}, Peers={}", getId(), getRaftState(), getPeers());
+                }
+
+
+            }
 
         } else {
             super.onReceiveCommand(message);
         }
     }
 
-    @Override protected void applyState(ActorRef clientActor, String identifier,
-        Object data) {
+    @Override protected void applyState(final ActorRef clientActor, final String identifier,
+        final Object data) {
         if(data instanceof KeyValue){
             KeyValue kv = (KeyValue) data;
             state.put(kv.getKey(), kv.getValue());
@@ -82,25 +105,101 @@ public class ExampleActor extends RaftActor {
         }
     }
 
-    @Override protected Object createSnapshot() {
-        return state;
+    @Override protected void createSnapshot() {
+        ByteString bs = null;
+        try {
+            bs = fromObject(state);
+        } catch (Exception e) {
+            LOG.error(e, "Exception in creating snapshot");
+        }
+        getSelf().tell(new CaptureSnapshotReply(bs), null);
     }
 
-    @Override protected void applySnapshot(Object snapshot) {
+    @Override protected void applySnapshot(final ByteString snapshot) {
         state.clear();
-        state.putAll((HashMap) snapshot);
-        LOG.debug("Snapshot applied to state :" + ((HashMap) snapshot).size());
+        try {
+            state.putAll((HashMap) toObject(snapshot));
+        } catch (Exception e) {
+           LOG.error(e, "Exception in applying snapshot");
+        }
+        if(LOG.isDebugEnabled()) {
+            LOG.debug("Snapshot applied to state : {}", ((HashMap) state).size());
+        }
+    }
+
+    private ByteString fromObject(final Object snapshot) throws Exception {
+        ByteArrayOutputStream b = null;
+        ObjectOutputStream o = null;
+        try {
+            b = new ByteArrayOutputStream();
+            o = new ObjectOutputStream(b);
+            o.writeObject(snapshot);
+            byte[] snapshotBytes = b.toByteArray();
+            return ByteString.copyFrom(snapshotBytes);
+        } finally {
+            if (o != null) {
+                o.flush();
+                o.close();
+            }
+            if (b != null) {
+                b.close();
+            }
+        }
+    }
+
+    private Object toObject(final ByteString bs) throws ClassNotFoundException, IOException {
+        Object obj = null;
+        ByteArrayInputStream bis = null;
+        ObjectInputStream ois = null;
+        try {
+            bis = new ByteArrayInputStream(bs.toByteArray());
+            ois = new ObjectInputStream(bis);
+            obj = ois.readObject();
+        } finally {
+            if (bis != null) {
+                bis.close();
+            }
+            if (ois != null) {
+                ois.close();
+            }
+        }
+        return obj;
     }
 
     @Override protected void onStateChanged() {
 
     }
 
-    @Override public void onReceiveRecover(Object message) {
+    @Override
+    protected DataPersistenceProvider persistence() {
+        return dataPersistenceProvider;
+    }
+
+    @Override public void onReceiveRecover(final Object message)throws Exception {
         super.onReceiveRecover(message);
     }
 
     @Override public String persistenceId() {
         return getId();
     }
+
+    @Override
+    protected void startLogRecoveryBatch(final int maxBatchSize) {
+    }
+
+    @Override
+    protected void appendRecoveredLogEntry(final Payload data) {
+    }
+
+    @Override
+    protected void applyCurrentLogRecoveryBatch() {
+    }
+
+    @Override
+    protected void onRecoveryComplete() {
+    }
+
+    @Override
+    protected void applyRecoverySnapshot(final ByteString snapshot) {
+    }
 }