1 files changed, 83 insertions, 0 deletions
diff --git a/zookeeper-server/zookeeper-server-3.9.1/src/main/java/org/apache/zookeeper/server/quorum/SendAckRequestProcessor.java b/zookeeper-server/zookeeper-server-3.9.1/src/main/java/org/apache/zookeeper/server/quorum/SendAckRequestProcessor.java
new file mode 100644
index 00000000000..d65ead216f0
--- /dev/null
+++ b/zookeeper-server/zookeeper-server-3.9.1/src/main/java/org/apache/zookeeper/server/quorum/SendAckRequestProcessor.java
@@ -0,0 +1,83 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.zookeeper.server.quorum;
+
+import java.io.Flushable;
+import java.io.IOException;
+import java.net.Socket;
+import org.apache.zookeeper.ZooDefs.OpCode;
+import org.apache.zookeeper.server.Request;
+import org.apache.zookeeper.server.RequestProcessor;
+import org.apache.zookeeper.server.ServerMetrics;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class SendAckRequestProcessor implements RequestProcessor, Flushable {
+
+    private static final Logger LOG = LoggerFactory.getLogger(SendAckRequestProcessor.class);
+
+    final Learner learner;
+
+    SendAckRequestProcessor(Learner peer) {
+        this.learner = peer;
+    }
+
+    public void processRequest(Request si) {
+        if (si.type != OpCode.sync) {
+            QuorumPacket qp = new QuorumPacket(Leader.ACK, si.getHdr().getZxid(), null, null);
+            try {
+                si.logLatency(ServerMetrics.getMetrics().PROPOSAL_ACK_CREATION_LATENCY);
+
+                learner.writePacket(qp, false);
+            } catch (IOException e) {
+                LOG.warn("Closing connection to leader, exception during packet send", e);
+                try {
+                    if (!learner.sock.isClosed()) {
+                        learner.sock.close();
+                    }
+                } catch (IOException e1) {
+                    // Nothing to do, we are shutting things down, so an exception here is irrelevant
+                    LOG.debug("Ignoring error closing the connection", e1);
+                }
+            }
+        }
+    }
+
+    public void flush() throws IOException {
+        try {
+            learner.writePacket(null, true);
+        } catch (IOException e) {
+            LOG.warn("Closing connection to leader, exception during packet send", e);
+            try {
+                Socket socket = learner.sock;
+                if (socket != null && !socket.isClosed()) {
+                    learner.sock.close();
+                }
+            } catch (IOException e1) {
+                // Nothing to do, we are shutting things down, so an exception here is irrelevant
+                LOG.debug("Ignoring error closing the connection", e1);
+            }
+        }
+    }
+
+    public void shutdown() {
+        // Nothing needed
+    }
+
+}