[Rename] modules/transport-netty4 (#225)

This commit refactors the transport-netty4 module as part of the Elasticsearch to OpenSearch renaming.

Signed-off-by: Rabi Panda <adnapibar@gmail.com>

client/transport/src/main/java/org/elasticsearch/transport/client/PreBuiltTransportClient.java

@@ -31,7 +31,7 @@ import org.elasticsearch.join.ParentJoinPlugin;
 import org.opensearch.percolator.PercolatorPlugin;
 import org.elasticsearch.plugins.Plugin;
 import org.opensearch.script.mustache.MustachePlugin;
-import org.elasticsearch.transport.Netty4Plugin;
+import org.opensearch.transport.Netty4Plugin;
 
 import java.util.Arrays;
 import java.util.Collection;

client/transport/src/test/java/org/elasticsearch/transport/client/PreBuiltTransportClientTests.java

@@ -28,7 +28,7 @@ import org.elasticsearch.join.ParentJoinPlugin;
 import org.opensearch.percolator.PercolatorPlugin;
 import org.elasticsearch.plugins.Plugin;
 import org.opensearch.script.mustache.MustachePlugin;
-import org.elasticsearch.transport.Netty4Plugin;
+import org.opensearch.transport.Netty4Plugin;
 import org.junit.Test;
 
 import java.util.Arrays;

modules/reindex/src/test/java/org/elasticsearch/index/reindex/ReindexFromRemoteWithAuthTests.java

@@ -52,7 +52,7 @@ import org.elasticsearch.script.ScriptService;
 import org.elasticsearch.tasks.Task;
 import org.elasticsearch.test.ESSingleNodeTestCase;
 import org.elasticsearch.threadpool.ThreadPool;
-import org.elasticsearch.transport.Netty4Plugin;
+import org.opensearch.transport.Netty4Plugin;
 import org.elasticsearch.watcher.ResourceWatcherService;
 import org.junit.Before;
 

modules/reindex/src/test/java/org/elasticsearch/index/reindex/RetryTests.java

@@ -36,7 +36,7 @@ import org.elasticsearch.index.query.QueryBuilders;
 import org.elasticsearch.plugins.Plugin;
 import org.elasticsearch.test.ESIntegTestCase;
 import org.elasticsearch.threadpool.ThreadPool;
-import org.elasticsearch.transport.Netty4Plugin;
+import org.opensearch.transport.Netty4Plugin;
 import org.junit.After;
 
 import java.util.ArrayList;

modules/transport-netty4/build.gradle

@@ -18,14 +18,14 @@
  */
 
 
-import org.elasticsearch.gradle.info.BuildParams
+import org.opensearch.gradle.info.BuildParams
-import org.elasticsearch.gradle.test.RestIntegTestTask
+import org.opensearch.gradle.test.RestIntegTestTask
-import org.elasticsearch.gradle.test.rest.JavaRestTestPlugin
+import org.opensearch.gradle.test.rest.JavaRestTestPlugin
-import org.elasticsearch.gradle.test.InternalClusterTestPlugin
+import org.opensearch.gradle.test.InternalClusterTestPlugin
 
-apply plugin: 'elasticsearch.yaml-rest-test'
+apply plugin: 'opensearch.yaml-rest-test'
-apply plugin: 'elasticsearch.java-rest-test'
+apply plugin: 'opensearch.java-rest-test'
-apply plugin: 'elasticsearch.internal-cluster-test'
+apply plugin: 'opensearch.internal-cluster-test'
 
 /*
  TODOs:
@@ -35,7 +35,7 @@ apply plugin: 'elasticsearch.internal-cluster-test'
  */
 esplugin {
   description 'Netty 4 based transport implementation'
-  classname 'org.elasticsearch.transport.Netty4Plugin'
+  classname 'org.opensearch.transport.Netty4Plugin'
   hasClientJar = true
 }
 

modules/transport-netty4/src/internalClusterTest/java/org/opensearch/OpenSearchNetty4IntegTestCase.java

@@ -16,19 +16,19 @@
  * specific language governing permissions and limitations
  * under the License.
  */
-package org.elasticsearch;
+package org.opensearch;
 
 import org.elasticsearch.common.network.NetworkModule;
 import org.elasticsearch.common.settings.Settings;
 import org.elasticsearch.plugins.Plugin;
 import org.elasticsearch.test.ESIntegTestCase;
-import org.elasticsearch.transport.Netty4Plugin;
+import org.opensearch.transport.Netty4Plugin;
-import org.elasticsearch.transport.netty4.Netty4Transport;
+import org.opensearch.transport.netty4.Netty4Transport;
 
 import java.util.Collection;
 import java.util.Collections;
 
-public abstract class ESNetty4IntegTestCase extends ESIntegTestCase {
+public abstract class OpenSearchNetty4IntegTestCase extends ESIntegTestCase {
 
     @Override
     protected boolean ignoreExternalCluster() {

modules/transport-netty4/src/internalClusterTest/java/org/opensearch/http/netty4/Netty4HttpRequestSizeLimitIT.java

@@ -17,12 +17,12 @@
  * under the License.
  */
 
-package org.elasticsearch.http.netty4;
+package org.opensearch.http.netty4;
 
 import io.netty.handler.codec.http.FullHttpResponse;
 import io.netty.handler.codec.http.HttpResponseStatus;
 import io.netty.util.ReferenceCounted;
-import org.elasticsearch.ESNetty4IntegTestCase;
+import org.opensearch.OpenSearchNetty4IntegTestCase;
 import org.elasticsearch.common.collect.Tuple;
 import org.elasticsearch.common.settings.Settings;
 import org.elasticsearch.common.transport.TransportAddress;
@@ -48,7 +48,7 @@ import static org.hamcrest.Matchers.hasSize;
  * a single node "cluster". We also force test infrastructure to use the node client instead of the transport client for the same reason.
  */
 @ClusterScope(scope = Scope.TEST, supportsDedicatedMasters = false, numClientNodes = 0, numDataNodes = 1, transportClientRatio = 0)
-public class Netty4HttpRequestSizeLimitIT extends ESNetty4IntegTestCase {
+public class Netty4HttpRequestSizeLimitIT extends OpenSearchNetty4IntegTestCase {
 
     private static final ByteSizeValue LIMIT = new ByteSizeValue(2, ByteSizeUnit.KB);
 

modules/transport-netty4/src/internalClusterTest/java/org/opensearch/http/netty4/Netty4PipeliningIT.java

@@ -17,11 +17,11 @@
  * under the License.
  */
 
-package org.elasticsearch.http.netty4;
+package org.opensearch.http.netty4;
 
 import io.netty.handler.codec.http.FullHttpResponse;
 import io.netty.util.ReferenceCounted;
-import org.elasticsearch.ESNetty4IntegTestCase;
+import org.opensearch.OpenSearchNetty4IntegTestCase;
 import org.elasticsearch.common.transport.TransportAddress;
 import org.elasticsearch.http.HttpServerTransport;
 import org.elasticsearch.test.ESIntegTestCase.ClusterScope;
@@ -34,7 +34,7 @@ import static org.hamcrest.Matchers.hasSize;
 import static org.hamcrest.Matchers.is;
 
 @ClusterScope(scope = Scope.TEST, supportsDedicatedMasters = false, numDataNodes = 1)
-public class Netty4PipeliningIT extends ESNetty4IntegTestCase {
+public class Netty4PipeliningIT extends OpenSearchNetty4IntegTestCase {
 
     @Override
     protected boolean addMockHttpTransport() {

modules/transport-netty4/src/internalClusterTest/java/org/opensearch/rest/discovery/Zen2RestApiIT.java

@@ -17,10 +17,10 @@
  * under the License.
  */
 
-package org.elasticsearch.rest.discovery;
+package org.opensearch.rest.discovery;
 
 import org.apache.http.HttpHost;
-import org.elasticsearch.ESNetty4IntegTestCase;
+import org.opensearch.OpenSearchNetty4IntegTestCase;
 import org.elasticsearch.action.admin.cluster.health.ClusterHealthResponse;
 import org.elasticsearch.client.Client;
 import org.elasticsearch.client.Node;
@@ -48,7 +48,7 @@ import static org.hamcrest.core.Is.is;
 // proper transport implementation, and they cannot be REST tests today since they need to restart nodes. When #35599 and friends land we
 // should be able to move these tests to run against a proper cluster instead. TODO do this.
 @ESIntegTestCase.ClusterScope(scope = ESIntegTestCase.Scope.TEST, numDataNodes = 0, transportClientRatio = 0, autoManageMasterNodes = false)
-public class Zen2RestApiIT extends ESNetty4IntegTestCase {
+public class Zen2RestApiIT extends OpenSearchNetty4IntegTestCase {
 
     @Override
     protected boolean addMockHttpTransport() {

modules/transport-netty4/src/internalClusterTest/java/org/opensearch/transport/netty4/Netty4TransportMultiPortIntegrationIT.java

@@ -16,9 +16,9 @@
  * specific language governing permissions and limitations
  * under the License.
  */
-package org.elasticsearch.transport.netty4;
+package org.opensearch.transport.netty4;
 
-import org.elasticsearch.ESNetty4IntegTestCase;
+import org.opensearch.OpenSearchNetty4IntegTestCase;
 import org.elasticsearch.action.admin.cluster.health.ClusterHealthResponse;
 import org.elasticsearch.action.admin.cluster.node.info.NodeInfo;
 import org.elasticsearch.action.admin.cluster.node.info.NodesInfoResponse;
@@ -34,7 +34,7 @@ import org.elasticsearch.test.ESIntegTestCase.ClusterScope;
 import org.elasticsearch.test.ESIntegTestCase.Scope;
 import org.elasticsearch.test.junit.annotations.Network;
 import org.elasticsearch.transport.MockTransportClient;
-import org.elasticsearch.transport.Netty4Plugin;
+import org.opensearch.transport.Netty4Plugin;
 import org.elasticsearch.transport.TransportInfo;
 
 import java.net.InetAddress;
@@ -51,7 +51,7 @@ import static org.hamcrest.Matchers.is;
 import static org.hamcrest.Matchers.lessThanOrEqualTo;
 
 @ClusterScope(scope = Scope.SUITE, supportsDedicatedMasters = false, numDataNodes = 1, numClientNodes = 0)
-public class Netty4TransportMultiPortIntegrationIT extends ESNetty4IntegTestCase {
+public class Netty4TransportMultiPortIntegrationIT extends OpenSearchNetty4IntegTestCase {
 
     private static int randomPort = -1;
     private static String randomPortRange;

modules/transport-netty4/src/internalClusterTest/java/org/opensearch/transport/netty4/Netty4TransportPublishAddressIT.java

@@ -17,9 +17,9 @@
  * under the License.
  */
 
-package org.elasticsearch.transport.netty4;
+package org.opensearch.transport.netty4;
 
-import org.elasticsearch.ESNetty4IntegTestCase;
+import org.opensearch.OpenSearchNetty4IntegTestCase;
 import org.elasticsearch.action.admin.cluster.node.info.NodeInfo;
 import org.elasticsearch.action.admin.cluster.node.info.NodesInfoResponse;
 import org.elasticsearch.common.network.NetworkModule;
@@ -28,7 +28,7 @@ import org.elasticsearch.common.settings.Settings;
 import org.elasticsearch.common.transport.BoundTransportAddress;
 import org.elasticsearch.common.transport.TransportAddress;
 import org.elasticsearch.test.ESIntegTestCase;
-import org.elasticsearch.transport.Netty4Plugin;
+import org.opensearch.transport.Netty4Plugin;
 import org.elasticsearch.transport.TransportInfo;
 
 import java.net.Inet4Address;
@@ -38,11 +38,11 @@ import static org.hamcrest.Matchers.greaterThan;
 import static org.hamcrest.Matchers.instanceOf;
 
 /**
- * Checks that Elasticsearch produces a sane publish_address when it binds to
+ * Checks that OpenSearch produces a sane publish_address when it binds to
  * different ports on ipv4 and ipv6.
  */
 @ESIntegTestCase.ClusterScope(scope = ESIntegTestCase.Scope.TEST, numDataNodes = 0)
-public class Netty4TransportPublishAddressIT extends ESNetty4IntegTestCase {
+public class Netty4TransportPublishAddressIT extends OpenSearchNetty4IntegTestCase {
     @Override
     protected Settings nodeSettings(int nodeOrdinal) {
         return Settings.builder()

modules/transport-netty4/src/internalClusterTest/java/org/opensearch/transport/netty4/OpenSearchLoggingHandlerIT.java

@@ -17,11 +17,11 @@
  * under the License.
  */
 
-package org.elasticsearch.transport.netty4;
+package org.opensearch.transport.netty4;
 
 import org.apache.logging.log4j.Level;
 import org.apache.logging.log4j.LogManager;
-import org.elasticsearch.ESNetty4IntegTestCase;
+import org.opensearch.OpenSearchNetty4IntegTestCase;
 import org.elasticsearch.action.admin.cluster.node.hotthreads.NodesHotThreadsRequest;
 import org.elasticsearch.common.logging.Loggers;
 import org.elasticsearch.test.ESIntegTestCase;
@@ -34,21 +34,21 @@ import org.elasticsearch.transport.TransportLogger;
 import java.io.IOException;
 
 @ESIntegTestCase.ClusterScope(numDataNodes = 2, scope = ESIntegTestCase.Scope.TEST)
-public class ESLoggingHandlerIT extends ESNetty4IntegTestCase {
+public class OpenSearchLoggingHandlerIT extends OpenSearchNetty4IntegTestCase {
 
     private MockLogAppender appender;
 
     public void setUp() throws Exception {
         super.setUp();
         appender = new MockLogAppender();
-        Loggers.addAppender(LogManager.getLogger(ESLoggingHandler.class), appender);
+        Loggers.addAppender(LogManager.getLogger(OpenSearchLoggingHandler.class), appender);
         Loggers.addAppender(LogManager.getLogger(TransportLogger.class), appender);
         Loggers.addAppender(LogManager.getLogger(TcpTransport.class), appender);
         appender.start();
     }
 
     public void tearDown() throws Exception {
-        Loggers.removeAppender(LogManager.getLogger(ESLoggingHandler.class), appender);
+        Loggers.removeAppender(LogManager.getLogger(OpenSearchLoggingHandler.class), appender);
         Loggers.removeAppender(LogManager.getLogger(TransportLogger.class), appender);
         Loggers.removeAppender(LogManager.getLogger(TcpTransport.class), appender);
         appender.stop();
@@ -56,7 +56,7 @@ public class ESLoggingHandlerIT extends ESNetty4IntegTestCase {
     }
 
     @TestLogging(
-            value = "org.elasticsearch.transport.netty4.ESLoggingHandler:trace,org.elasticsearch.transport.TransportLogger:trace",
+            value = "org.opensearch.transport.netty4.ESLoggingHandler:trace,org.opensearch.transport.TransportLogger:trace",
             reason = "to ensure we log network events on TRACE level")
     public void testLoggingHandler() {
         final String writePattern =
@@ -71,7 +71,7 @@ public class ESLoggingHandlerIT extends ESNetty4IntegTestCase {
                         "hot threads request", TransportLogger.class.getCanonicalName(), Level.TRACE, writePattern);
 
         final MockLogAppender.LoggingExpectation flushExpectation =
-                new MockLogAppender.SeenEventExpectation("flush", ESLoggingHandler.class.getCanonicalName(), Level.TRACE, "*FLUSH*");
+                new MockLogAppender.SeenEventExpectation("flush", OpenSearchLoggingHandler.class.getCanonicalName(), Level.TRACE, "*FLUSH*");
 
         final String readPattern =
                 ".*\\[length: \\d+" +
@@ -92,7 +92,7 @@ public class ESLoggingHandlerIT extends ESNetty4IntegTestCase {
         appender.assertAllExpectationsMatched();
     }
 
-    @TestLogging(value = "org.elasticsearch.transport.TcpTransport:DEBUG", reason = "to ensure we log connection events on DEBUG level")
+    @TestLogging(value = "org.opensearch.transport.TcpTransport:DEBUG", reason = "to ensure we log connection events on DEBUG level")
     public void testConnectionLogging() throws IOException {
         appender.addExpectation(new MockLogAppender.PatternSeenEventExpectation("open connection log",
                 TcpTransport.class.getCanonicalName(), Level.DEBUG,

modules/transport-netty4/src/javaRestTest/java/org/opensearch/rest/Netty4BadRequestIT.java

@@ -17,7 +17,7 @@
  * under the License.
  */
 
-package org.elasticsearch.rest;
+package org.opensearch.rest;
 
 import org.elasticsearch.client.Request;
 import org.elasticsearch.client.RequestOptions;

modules/transport-netty4/src/javaRestTest/java/org/opensearch/rest/Netty4HeadBodyIsEmptyIT.java

@@ -17,7 +17,7 @@
  * under the License.
  */
 
-package org.elasticsearch.rest;
+package org.opensearch.rest;
 
 import org.elasticsearch.client.Request;
 import org.elasticsearch.client.Response;

modules/transport-netty4/src/main/java/org/opensearch/http/netty4/Netty4HttpChannel.java

@@ -17,14 +17,14 @@
  * under the License.
  */
 
-package org.elasticsearch.http.netty4;
+package org.opensearch.http.netty4;
 
 import io.netty.channel.Channel;
 import org.elasticsearch.action.ActionListener;
 import org.elasticsearch.common.concurrent.CompletableContext;
 import org.elasticsearch.http.HttpChannel;
 import org.elasticsearch.http.HttpResponse;
-import org.elasticsearch.transport.netty4.Netty4TcpChannel;
+import org.opensearch.transport.netty4.Netty4TcpChannel;
 
 import java.net.InetSocketAddress;
 

modules/transport-netty4/src/main/java/org/opensearch/http/netty4/Netty4HttpPipeliningHandler.java

@@ -17,7 +17,7 @@
  * under the License.
  */
 
-package org.elasticsearch.http.netty4;
+package org.opensearch.http.netty4;
 
 import io.netty.channel.ChannelDuplexHandler;
 import io.netty.channel.ChannelHandlerContext;

modules/transport-netty4/src/main/java/org/opensearch/http/netty4/Netty4HttpRequest.java

@@ -17,7 +17,7 @@
  * under the License.
  */
 
-package org.elasticsearch.http.netty4;
+package org.opensearch.http.netty4;
 
 import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
@@ -34,7 +34,7 @@ import org.elasticsearch.common.bytes.BytesReference;
 import org.elasticsearch.http.HttpRequest;
 import org.elasticsearch.rest.RestRequest;
 import org.elasticsearch.rest.RestStatus;
-import org.elasticsearch.transport.netty4.Netty4Utils;
+import org.opensearch.transport.netty4.Netty4Utils;
 
 import java.util.AbstractMap;
 import java.util.Collection;

modules/transport-netty4/src/main/java/org/opensearch/http/netty4/Netty4HttpRequestCreator.java

@@ -17,7 +17,7 @@
  * under the License.
  */
 
-package org.elasticsearch.http.netty4;
+package org.opensearch.http.netty4;
 
 import io.netty.channel.ChannelHandler;
 import io.netty.channel.ChannelHandlerContext;

modules/transport-netty4/src/main/java/org/opensearch/http/netty4/Netty4HttpRequestHandler.java

@@ -17,7 +17,7 @@
  * under the License.
  */
 
-package org.elasticsearch.http.netty4;
+package org.opensearch.http.netty4;
 
 import io.netty.channel.ChannelHandler;
 import io.netty.channel.ChannelHandlerContext;

modules/transport-netty4/src/main/java/org/opensearch/http/netty4/Netty4HttpResponse.java

@@ -17,7 +17,7 @@
  * under the License.
  */
 
-package org.elasticsearch.http.netty4;
+package org.opensearch.http.netty4;
 
 import io.netty.handler.codec.http.DefaultFullHttpResponse;
 import io.netty.handler.codec.http.HttpHeaders;
@@ -26,7 +26,7 @@ import io.netty.handler.codec.http.HttpVersion;
 import org.elasticsearch.common.bytes.BytesReference;
 import org.elasticsearch.http.HttpResponse;
 import org.elasticsearch.rest.RestStatus;
-import org.elasticsearch.transport.netty4.Netty4Utils;
+import org.opensearch.transport.netty4.Netty4Utils;
 
 public class Netty4HttpResponse extends DefaultFullHttpResponse implements HttpResponse {
 

modules/transport-netty4/src/main/java/org/opensearch/http/netty4/Netty4HttpResponseCreator.java

@@ -17,7 +17,7 @@
  * under the License.
  */
 
-package org.elasticsearch.http.netty4;
+package org.opensearch.http.netty4;
 
 import io.netty.buffer.ByteBuf;
 import io.netty.channel.ChannelHandler;
@@ -29,7 +29,7 @@ import io.netty.handler.codec.http.DefaultHttpResponse;
 import io.netty.handler.codec.http.DefaultLastHttpContent;
 import io.netty.handler.codec.http.HttpResponse;
 import org.elasticsearch.common.Booleans;
-import org.elasticsearch.transport.NettyAllocator;
+import org.opensearch.transport.NettyAllocator;
 
 import java.util.List;
 

modules/transport-netty4/src/main/java/org/opensearch/http/netty4/Netty4HttpServerChannel.java

@@ -17,13 +17,13 @@
  * under the License.
  */
 
-package org.elasticsearch.http.netty4;
+package org.opensearch.http.netty4;
 
 import io.netty.channel.Channel;
 import org.elasticsearch.action.ActionListener;
 import org.elasticsearch.common.concurrent.CompletableContext;
 import org.elasticsearch.http.HttpServerChannel;
-import org.elasticsearch.transport.netty4.Netty4TcpChannel;
+import org.opensearch.transport.netty4.Netty4TcpChannel;
 
 import java.net.InetSocketAddress;
 

modules/transport-netty4/src/main/java/org/opensearch/http/netty4/Netty4HttpServerTransport.java

@@ -17,7 +17,7 @@
  * under the License.
  */
 
-package org.elasticsearch.http.netty4;
+package org.opensearch.http.netty4;
 
 import io.netty.bootstrap.ServerBootstrap;
 import io.netty.channel.Channel;
@@ -60,10 +60,10 @@ import org.elasticsearch.http.HttpHandlingSettings;
 import org.elasticsearch.http.HttpReadTimeoutException;
 import org.elasticsearch.http.HttpServerChannel;
 import org.elasticsearch.threadpool.ThreadPool;
-import org.elasticsearch.transport.NettyAllocator;
+import org.opensearch.transport.NettyAllocator;
-import org.elasticsearch.transport.NettyByteBufSizer;
+import org.opensearch.transport.NettyByteBufSizer;
-import org.elasticsearch.transport.SharedGroupFactory;
+import org.opensearch.transport.SharedGroupFactory;
-import org.elasticsearch.transport.netty4.Netty4Utils;
+import org.opensearch.transport.netty4.Netty4Utils;
 
 import java.net.InetSocketAddress;
 import java.net.SocketOption;
@@ -112,7 +112,7 @@ public class Netty4HttpServerTransport extends AbstractHttpServerTransport {
              * io.netty.handler.codec.MessageAggregator#DEFAULT_MAX_COMPOSITEBUFFER_COMPONENTS). To determine a proper default capacity for
              * that buffer, we need to consider that the upper bound for the size of HTTP requests is determined by `maxContentLength`. The
              * number of buffers that are needed depend on how often Netty reads network packets which depends on the network type (MTU).
-             * We assume here that Elasticsearch receives HTTP requests via an Ethernet connection which has a MTU of 1500 bytes.
+             * We assume here that OpenSearch receives HTTP requests via an Ethernet connection which has a MTU of 1500 bytes.
              *
              * Note that we are *not* pre-allocating any memory based on this setting but rather determine the CompositeByteBuf's capacity.
              * The tradeoff is between less (but larger) buffers that are contained in the CompositeByteBuf and more (but smaller) buffers.

modules/transport-netty4/src/main/java/org/opensearch/transport/CopyBytesServerSocketChannel.java

@@ -31,7 +31,7 @@
  * License for the specific language governing permissions and limitations
  * under the License.
  */
-package org.elasticsearch.transport;
+package org.opensearch.transport;
 
 import io.netty.channel.socket.nio.NioServerSocketChannel;
 import io.netty.util.internal.SocketUtils;

modules/transport-netty4/src/main/java/org/opensearch/transport/CopyBytesSocketChannel.java

@@ -31,7 +31,7 @@
  * License for the specific language governing permissions and limitations
  * under the License.
  */
-package org.elasticsearch.transport;
+package org.opensearch.transport;
 
 import io.netty.buffer.ByteBuf;
 import io.netty.channel.Channel;

modules/transport-netty4/src/main/java/org/opensearch/transport/Netty4NioSocketChannel.java

@@ -17,7 +17,7 @@
  * under the License.
  */
 
-package org.elasticsearch.transport;
+package org.opensearch.transport;
 
 import io.netty.channel.Channel;
 import io.netty.channel.socket.nio.NioSocketChannel;

modules/transport-netty4/src/main/java/org/opensearch/transport/Netty4Plugin.java

@@ -17,7 +17,7 @@
  * under the License.
  */
 
-package org.elasticsearch.transport;
+package org.opensearch.transport;
 
 import org.apache.lucene.util.SetOnce;
 import org.elasticsearch.Version;
@@ -31,12 +31,13 @@ import org.elasticsearch.common.util.BigArrays;
 import org.elasticsearch.common.util.PageCacheRecycler;
 import org.elasticsearch.common.xcontent.NamedXContentRegistry;
 import org.elasticsearch.http.HttpServerTransport;
-import org.elasticsearch.http.netty4.Netty4HttpServerTransport;
+import org.opensearch.http.netty4.Netty4HttpServerTransport;
 import org.elasticsearch.indices.breaker.CircuitBreakerService;
 import org.elasticsearch.plugins.NetworkPlugin;
 import org.elasticsearch.plugins.Plugin;
 import org.elasticsearch.threadpool.ThreadPool;
-import org.elasticsearch.transport.netty4.Netty4Transport;
+import org.elasticsearch.transport.Transport;
+import org.opensearch.transport.netty4.Netty4Transport;
 
 import java.util.Arrays;
 import java.util.Collections;

modules/transport-netty4/src/main/java/org/opensearch/transport/NettyAllocator.java

@@ -17,7 +17,7 @@
  * under the License.
  */
 
-package org.elasticsearch.transport;
+package org.opensearch.transport;
 
 import io.netty.buffer.ByteBuf;
 import io.netty.buffer.ByteBufAllocator;
@@ -106,7 +106,7 @@ public class NettyAllocator {
                 int chunkSizeInBytes = pageSize << maxOrder;
                 ByteSizeValue chunkSize = new ByteSizeValue(chunkSizeInBytes);
                 SUGGESTED_MAX_ALLOCATION_SIZE = chunkSizeInBytes;
-                DESCRIPTION = "[name=elasticsearch_configured, chunk_size=" + chunkSize
+                DESCRIPTION = "[name=opensearch_configured, chunk_size=" + chunkSize
                     + ", suggested_max_allocation_size=" + new ByteSizeValue(SUGGESTED_MAX_ALLOCATION_SIZE)
                     + ", factors={es.unsafe.use_netty_default_chunk_and_page_size=" + useDefaultChunkAndPageSize()
                     + ", g1gc_enabled=" + g1gcEnabled

modules/transport-netty4/src/main/java/org/opensearch/transport/NettyByteBufSizer.java

@@ -17,7 +17,7 @@
  * under the License.
  */
 
-package org.elasticsearch.transport;
+package org.opensearch.transport;
 
 import io.netty.buffer.ByteBuf;
 import io.netty.channel.ChannelHandler;

modules/transport-netty4/src/main/java/org/opensearch/transport/SharedGroupFactory.java

@@ -17,7 +17,7 @@
  * under the License.
  */
 
-package org.elasticsearch.transport;
+package org.opensearch.transport;
 
 import io.netty.channel.EventLoopGroup;
 import io.netty.channel.nio.NioEventLoopGroup;
@@ -26,9 +26,11 @@ import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
 import org.elasticsearch.common.settings.Settings;
 import org.elasticsearch.common.util.concurrent.AbstractRefCounted;
+import org.elasticsearch.common.util.concurrent.EsExecutors;
 import org.elasticsearch.http.HttpServerTransport;
-import org.elasticsearch.http.netty4.Netty4HttpServerTransport;
+import org.opensearch.http.netty4.Netty4HttpServerTransport;
-import org.elasticsearch.transport.netty4.Netty4Transport;
+import org.elasticsearch.transport.TcpTransport;
+import org.opensearch.transport.netty4.Netty4Transport;
 
 import java.util.concurrent.TimeUnit;
 import java.util.concurrent.atomic.AtomicBoolean;
@@ -38,7 +40,7 @@ import static org.elasticsearch.common.util.concurrent.EsExecutors.daemonThreadF
 /**
  * Creates and returns {@link io.netty.channel.EventLoopGroup} instances. It will return a shared group for
  * both {@link #getHttpGroup()} and {@link #getTransportGroup()} if
- * {@link org.elasticsearch.http.netty4.Netty4HttpServerTransport#SETTING_HTTP_WORKER_COUNT} is configured to be 0.
+ * {@link org.opensearch.http.netty4.Netty4HttpServerTransport#SETTING_HTTP_WORKER_COUNT} is configured to be 0.
  * If that setting is not 0, then it will return a different group in the {@link #getHttpGroup()} call.
  */
 public final class SharedGroupFactory {

modules/transport-netty4/src/main/java/org/opensearch/transport/netty4/Netty4MessageChannelHandler.java

@@ -7,7 +7,7 @@
  * 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
+ *     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
@@ -17,7 +17,7 @@
  * under the License.
  */
 
-package org.elasticsearch.transport.netty4;
+package org.opensearch.transport.netty4;
 
 import io.netty.buffer.ByteBuf;
 import io.netty.channel.Channel;

modules/transport-netty4/src/main/java/org/opensearch/transport/netty4/Netty4TcpChannel.java

@@ -17,7 +17,7 @@
  * under the License.
  */
 
-package org.elasticsearch.transport.netty4;
+package org.opensearch.transport.netty4;
 
 import io.netty.channel.Channel;
 import io.netty.channel.ChannelFuture;

modules/transport-netty4/src/main/java/org/opensearch/transport/netty4/Netty4TcpServerChannel.java

@@ -17,7 +17,7 @@
  * under the License.
  */
 
-package org.elasticsearch.transport.netty4;
+package org.opensearch.transport.netty4;
 
 import io.netty.channel.Channel;
 import org.elasticsearch.action.ActionListener;

modules/transport-netty4/src/main/java/org/opensearch/transport/netty4/Netty4Transport.java

@@ -16,7 +16,7 @@
  * specific language governing permissions and limitations
  * under the License.
  */
-package org.elasticsearch.transport.netty4;
+package org.opensearch.transport.netty4;
 
 import io.netty.bootstrap.Bootstrap;
 import io.netty.bootstrap.ServerBootstrap;
@@ -52,10 +52,10 @@ import org.elasticsearch.common.util.concurrent.EsExecutors;
 import org.elasticsearch.core.internal.net.NetUtils;
 import org.elasticsearch.indices.breaker.CircuitBreakerService;
 import org.elasticsearch.threadpool.ThreadPool;
-import org.elasticsearch.transport.Netty4NioSocketChannel;
+import org.opensearch.transport.Netty4NioSocketChannel;
-import org.elasticsearch.transport.NettyAllocator;
+import org.opensearch.transport.NettyAllocator;
-import org.elasticsearch.transport.NettyByteBufSizer;
+import org.opensearch.transport.NettyByteBufSizer;
-import org.elasticsearch.transport.SharedGroupFactory;
+import org.opensearch.transport.SharedGroupFactory;
 import org.elasticsearch.transport.TcpTransport;
 import org.elasticsearch.transport.TransportSettings;
 
@@ -312,7 +312,7 @@ public class Netty4Transport extends TcpTransport {
             addClosedExceptionLogger(ch);
             assert ch instanceof Netty4NioSocketChannel;
             NetUtils.tryEnsureReasonableKeepAliveConfig(((Netty4NioSocketChannel) ch).javaChannel());
-            ch.pipeline().addLast("logging", new ESLoggingHandler());
+            ch.pipeline().addLast("logging", new OpenSearchLoggingHandler());
             // using a dot as a prefix means this cannot come from any settings parsed
             ch.pipeline().addLast("dispatcher", new Netty4MessageChannelHandler(pageCacheRecycler, Netty4Transport.this));
         }
@@ -341,7 +341,7 @@ public class Netty4Transport extends TcpTransport {
             Netty4TcpChannel nettyTcpChannel = new Netty4TcpChannel(ch, true, name, ch.newSucceededFuture());
             ch.attr(CHANNEL_KEY).set(nettyTcpChannel);
             ch.pipeline().addLast("byte_buf_sizer", sizer);
-            ch.pipeline().addLast("logging", new ESLoggingHandler());
+            ch.pipeline().addLast("logging", new OpenSearchLoggingHandler());
             ch.pipeline().addLast("dispatcher", new Netty4MessageChannelHandler(pageCacheRecycler, Netty4Transport.this));
             serverAcceptedChannel(nettyTcpChannel);
         }

modules/transport-netty4/src/main/java/org/opensearch/transport/netty4/Netty4Utils.java

@@ -17,7 +17,7 @@
  * under the License.
  */
 
-package org.elasticsearch.transport.netty4;
+package org.opensearch.transport.netty4;
 
 import io.netty.buffer.ByteBuf;
 import io.netty.buffer.CompositeByteBuf;

modules/transport-netty4/src/main/java/org/opensearch/transport/netty4/OpenSearchLoggingHandler.java

@@ -17,15 +17,15 @@
  * under the License.
  */
 
-package org.elasticsearch.transport.netty4;
+package org.opensearch.transport.netty4;
 
 import io.netty.channel.ChannelHandlerContext;
 import io.netty.handler.logging.LogLevel;
 import io.netty.handler.logging.LoggingHandler;
 
-final class ESLoggingHandler extends LoggingHandler {
+final class OpenSearchLoggingHandler extends LoggingHandler {
 
-    ESLoggingHandler() {
+    OpenSearchLoggingHandler() {
         super(LogLevel.TRACE);
     }
 

modules/transport-netty4/src/test/java/org/opensearch/http/netty4/Netty4BadRequestTests.java

@@ -17,7 +17,7 @@
  * under the License.
  */
 
-package org.elasticsearch.http.netty4;
+package org.opensearch.http.netty4;
 
 import io.netty.handler.codec.http.FullHttpResponse;
 import io.netty.util.ReferenceCounted;
@@ -39,7 +39,7 @@ import org.elasticsearch.rest.RestStatus;
 import org.elasticsearch.test.ESTestCase;
 import org.elasticsearch.threadpool.TestThreadPool;
 import org.elasticsearch.threadpool.ThreadPool;
-import org.elasticsearch.transport.SharedGroupFactory;
+import org.opensearch.transport.SharedGroupFactory;
 import org.junit.After;
 import org.junit.Before;
 

modules/transport-netty4/src/test/java/org/opensearch/http/netty4/Netty4HttpClient.java

@@ -17,7 +17,7 @@
  * under the License.
  */
 
-package org.elasticsearch.http.netty4;
+package org.opensearch.http.netty4;
 
 import io.netty.bootstrap.Bootstrap;
 import io.netty.buffer.ByteBuf;
@@ -46,7 +46,7 @@ import org.elasticsearch.common.collect.Tuple;
 import org.elasticsearch.common.unit.ByteSizeUnit;
 import org.elasticsearch.common.unit.ByteSizeValue;
 import org.elasticsearch.tasks.Task;
-import org.elasticsearch.transport.NettyAllocator;
+import org.opensearch.transport.NettyAllocator;
 
 import java.io.Closeable;
 import java.net.SocketAddress;

modules/transport-netty4/src/test/java/org/opensearch/http/netty4/Netty4HttpPipeliningHandlerTests.java

@@ -17,7 +17,7 @@
  * under the License.
  */
 
-package org.elasticsearch.http.netty4;
+package org.opensearch.http.netty4;
 
 import io.netty.buffer.ByteBufUtil;
 import io.netty.channel.ChannelHandlerContext;

modules/transport-netty4/src/test/java/org/opensearch/http/netty4/Netty4HttpServerPipeliningTests.java

@@ -17,7 +17,7 @@
  * under the License.
  */
 
-package org.elasticsearch.http.netty4;
+package org.opensearch.http.netty4;
 
 import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
@@ -44,7 +44,7 @@ import org.elasticsearch.rest.RestStatus;
 import org.elasticsearch.test.ESTestCase;
 import org.elasticsearch.threadpool.TestThreadPool;
 import org.elasticsearch.threadpool.ThreadPool;
-import org.elasticsearch.transport.SharedGroupFactory;
+import org.opensearch.transport.SharedGroupFactory;
 import org.junit.After;
 import org.junit.Before;
 
@@ -59,7 +59,7 @@ import java.util.concurrent.Executors;
 import static org.hamcrest.Matchers.contains;
 
 /**
- * This test just tests, if he pipelining works in general with out any connection the Elasticsearch handler
+ * This test just tests, if he pipelining works in general with out any connection the OpenSearch handler
  */
 public class Netty4HttpServerPipeliningTests extends ESTestCase {
     private NetworkService networkService;

modules/transport-netty4/src/test/java/org/opensearch/http/netty4/Netty4HttpServerTransportTests.java

@@ -17,7 +17,7 @@
  * under the License.
  */
 
-package org.elasticsearch.http.netty4;
+package org.opensearch.http.netty4;
 
 import io.netty.bootstrap.Bootstrap;
 import io.netty.buffer.ByteBufAllocator;
@@ -70,8 +70,8 @@ import org.elasticsearch.test.ESTestCase;
 import org.elasticsearch.test.rest.FakeRestRequest;
 import org.elasticsearch.threadpool.TestThreadPool;
 import org.elasticsearch.threadpool.ThreadPool;
-import org.elasticsearch.transport.SharedGroupFactory;
+import org.opensearch.transport.SharedGroupFactory;
-import org.elasticsearch.transport.NettyAllocator;
+import org.opensearch.transport.NettyAllocator;
 import org.junit.After;
 import org.junit.Before;
 

modules/transport-netty4/src/test/java/org/opensearch/transport/CopyBytesSocketChannelTests.java

@@ -16,7 +16,7 @@
  * specific language governing permissions and limitations
  * under the License.
  */
-package org.elasticsearch.transport;
+package org.opensearch.transport;
 
 import io.netty.bootstrap.Bootstrap;
 import io.netty.bootstrap.ServerBootstrap;

modules/transport-netty4/src/test/java/org/opensearch/transport/SharedGroupFactoryTests.java

@@ -17,10 +17,10 @@
  * under the License.
  */
 
-package org.elasticsearch.transport;
+package org.opensearch.transport;
 
 import org.elasticsearch.common.settings.Settings;
-import org.elasticsearch.http.netty4.Netty4HttpServerTransport;
+import org.opensearch.http.netty4.Netty4HttpServerTransport;
 import org.elasticsearch.test.ESTestCase;
 
 public final class SharedGroupFactoryTests extends ESTestCase {

modules/transport-netty4/src/test/java/org/opensearch/transport/netty4/Netty4SizeHeaderFrameDecoderTests.java

@@ -17,7 +17,7 @@
  * under the License.
  */
 
-package org.elasticsearch.transport.netty4;
+package org.opensearch.transport.netty4;
 
 import org.elasticsearch.Version;
 import org.elasticsearch.common.io.stream.NamedWriteableRegistry;
@@ -30,7 +30,7 @@ import org.elasticsearch.indices.breaker.NoneCircuitBreakerService;
 import org.elasticsearch.mocksocket.MockSocket;
 import org.elasticsearch.test.ESTestCase;
 import org.elasticsearch.threadpool.ThreadPool;
-import org.elasticsearch.transport.SharedGroupFactory;
+import org.opensearch.transport.SharedGroupFactory;
 import org.elasticsearch.transport.TransportSettings;
 import org.junit.After;
 import org.junit.Before;

modules/transport-netty4/src/test/java/org/opensearch/transport/netty4/Netty4UtilsTests.java

@@ -17,7 +17,7 @@
  * under the License.
  */
 
-package org.elasticsearch.transport.netty4;
+package org.opensearch.transport.netty4;
 
 import io.netty.buffer.ByteBuf;
 import io.netty.buffer.CompositeByteBuf;

modules/transport-netty4/src/test/java/org/opensearch/transport/netty4/NettyTransportMultiPortTests.java

@@ -16,7 +16,7 @@
  * specific language governing permissions and limitations
  * under the License.
  */
-package org.elasticsearch.transport.netty4;
+package org.opensearch.transport.netty4;
 
 import org.elasticsearch.Version;
 import org.elasticsearch.common.component.Lifecycle;
@@ -30,7 +30,7 @@ import org.elasticsearch.indices.breaker.NoneCircuitBreakerService;
 import org.elasticsearch.test.ESTestCase;
 import org.elasticsearch.threadpool.TestThreadPool;
 import org.elasticsearch.threadpool.ThreadPool;
-import org.elasticsearch.transport.SharedGroupFactory;
+import org.opensearch.transport.SharedGroupFactory;
 import org.elasticsearch.transport.TcpTransport;
 import org.elasticsearch.transport.TransportSettings;
 import org.junit.Before;

modules/transport-netty4/src/test/java/org/opensearch/transport/netty4/SimpleNetty4TransportTests.java

@@ -17,7 +17,7 @@
  * under the License.
  */
 
-package org.elasticsearch.transport.netty4;
+package org.opensearch.transport.netty4;
 
 import org.elasticsearch.Version;
 import org.elasticsearch.action.ActionListener;
@@ -37,8 +37,8 @@ import org.elasticsearch.test.transport.StubbableTransport;
 import org.elasticsearch.transport.AbstractSimpleTransportTestCase;
 import org.elasticsearch.transport.ConnectTransportException;
 import org.elasticsearch.transport.ConnectionProfile;
-import org.elasticsearch.transport.Netty4NioSocketChannel;
+import org.opensearch.transport.Netty4NioSocketChannel;
-import org.elasticsearch.transport.SharedGroupFactory;
+import org.opensearch.transport.SharedGroupFactory;
 import org.elasticsearch.transport.TcpChannel;
 import org.elasticsearch.transport.TcpTransport;
 import org.elasticsearch.transport.TestProfiles;

modules/transport-netty4/src/yamlRestTest/java/org/opensearch/http/netty4/Netty4ClientYamlTestSuiteIT.java

@@ -17,7 +17,7 @@
  * under the License.
  */
 
-package org.elasticsearch.http.netty4;
+package org.opensearch.http.netty4;
 
 import com.carrotsearch.randomizedtesting.annotations.Name;
 import com.carrotsearch.randomizedtesting.annotations.ParametersFactory;