Fixup comparison formatting

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

diff --git a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/behaviors/SnapshotTracker.java b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/behaviors/SnapshotTracker.java
index 77c9cb5783f4dd59c57246492d02071386107351..1538bed74cfbde6b225768633b20cdddb0279f85 100644 (file)
--- a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/behaviors/SnapshotTracker.java
+++ b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/behaviors/SnapshotTracker.java
@@ -5,16 +5,17 @@
  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
  * and is available at http://www.eclipse.org/legal/epl-v10.html
  */
-
 package org.opendaylight.controller.cluster.raft.behaviors;
 
-import com.google.common.base.Optional;
-import com.google.common.base.Preconditions;
+import static java.util.Objects.requireNonNull;
+
 import com.google.common.io.ByteSource;
-import com.google.common.io.CountingOutputStream;
-import java.io.ByteArrayOutputStream;
+import java.io.BufferedOutputStream;
 import java.io.IOException;
 import java.util.Arrays;
+import java.util.OptionalInt;
+import org.opendaylight.controller.cluster.io.FileBackedOutputStream;
+import org.opendaylight.controller.cluster.raft.RaftActorContext;
 import org.slf4j.Logger;
 
 /**
@@ -24,19 +25,19 @@ class SnapshotTracker implements AutoCloseable {
     private final Logger log;
     private final int totalChunks;
     private final String leaderId;
-    private final CountingOutputStream countingStream;
-    private final ByteArrayOutputStream backingStream;
+    private final BufferedOutputStream bufferedStream;
+    private final FileBackedOutputStream fileBackedStream;
     private int lastChunkIndex = LeaderInstallSnapshotState.FIRST_CHUNK_INDEX - 1;
     private boolean sealed = false;
     private int lastChunkHashCode = LeaderInstallSnapshotState.INITIAL_LAST_CHUNK_HASH_CODE;
+    private long count;
 
-    SnapshotTracker(Logger log, int totalChunks, String leaderId) {
+    SnapshotTracker(final Logger log, final int totalChunks, final String leaderId, final RaftActorContext context) {
         this.log = log;
         this.totalChunks = totalChunks;
-        this.leaderId = Preconditions.checkNotNull(leaderId);
-
-        backingStream = new ByteArrayOutputStream();
-        countingStream = new CountingOutputStream(backingStream);
+        this.leaderId = requireNonNull(leaderId);
+        fileBackedStream = context.getFileBackedOutputStreamFactory().newInstance();
+        bufferedStream = new BufferedOutputStream(fileBackedStream);
     }
 
     /**
@@ -48,10 +49,10 @@ class SnapshotTracker implements AutoCloseable {
      * @return true if this is the last chunk is received
      * @throws InvalidChunkException if the chunk index is invalid or out of order
      */
-    boolean addChunk(int chunkIndex, byte[] chunk, Optional<Integer> maybeLastChunkHashCode)
+    boolean addChunk(final int chunkIndex, final byte[] chunk, final OptionalInt maybeLastChunkHashCode)
             throws InvalidChunkException, IOException {
         log.debug("addChunk: chunkIndex={}, lastChunkIndex={}, collectedChunks.size={}, lastChunkHashCode={}",
-                chunkIndex, lastChunkIndex, countingStream.getCount(), this.lastChunkHashCode);
+                chunkIndex, lastChunkIndex, count, this.lastChunkHashCode);
 
         if (sealed) {
             throw new InvalidChunkException("Invalid chunk received with chunkIndex " + chunkIndex
@@ -62,26 +63,28 @@ class SnapshotTracker implements AutoCloseable {
             throw new InvalidChunkException("Expected chunkIndex " + (lastChunkIndex + 1) + " got " + chunkIndex);
         }
 
-        if (maybeLastChunkHashCode.isPresent() && maybeLastChunkHashCode.get() != this.lastChunkHashCode) {
+        if (maybeLastChunkHashCode.isPresent() && maybeLastChunkHashCode.getAsInt() != this.lastChunkHashCode) {
             throw new InvalidChunkException("The hash code of the recorded last chunk does not match "
                     + "the senders hash code, expected " + this.lastChunkHashCode + " was "
-                    + maybeLastChunkHashCode.get());
+                    + maybeLastChunkHashCode.getAsInt());
         }
 
-        countingStream.write(chunk);
+        bufferedStream.write(chunk);
 
+        count += chunk.length;
         sealed = chunkIndex == totalChunks;
         lastChunkIndex = chunkIndex;
         this.lastChunkHashCode = Arrays.hashCode(chunk);
         return sealed;
     }
 
-    ByteSource getSnapshotBytes() {
+    ByteSource getSnapshotBytes() throws IOException {
         if (!sealed) {
             throw new IllegalStateException("lastChunk not received yet");
         }
 
-        return ByteSource.wrap(backingStream.toByteArray());
+        bufferedStream.close();
+        return fileBackedStream.asByteSource();
     }
 
     String getLeaderId() {
@@ -90,17 +93,13 @@ class SnapshotTracker implements AutoCloseable {
 
     @Override
     public void close() {
-        try {
-            countingStream.close();
-        } catch (IOException e) {
-            log.warn("Error closing snapshot stream");
-        }
+        fileBackedStream.cleanup();
     }
 
     public static class InvalidChunkException extends IOException {
         private static final long serialVersionUID = 1L;
 
-        InvalidChunkException(String message) {
+        InvalidChunkException(final String message) {
             super(message);
         }
     }