Fix location of AbstractHttpServerTransport (#30888)

Currently AbstractHttpServerTransport is in a netty4 module. This is the
incorrect location. This commit moves it out of netty4 module.
Additionally, it moves unit tests that test AbstractHttpServerTransport
logic to server.

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

@@ -56,6 +56,7 @@ import org.elasticsearch.common.util.concurrent.EsExecutors;
 import org.elasticsearch.common.util.concurrent.ThreadContext;
 import org.elasticsearch.common.xcontent.NamedXContentRegistry;
 import org.elasticsearch.common.xcontent.XContentParser;
+import org.elasticsearch.http.AbstractHttpServerTransport;
 import org.elasticsearch.http.BindHttpException;
 import org.elasticsearch.http.HttpHandlingSettings;
 import org.elasticsearch.http.HttpStats;

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

@@ -273,7 +273,7 @@ public class Netty4HttpServerTransportTests extends ESTestCase {
         try (Netty4HttpServerTransport transport =
                      new Netty4HttpServerTransport(settings, networkService, bigArrays, threadPool, xContentRegistry(), dispatcher)) {
             transport.start();
-            final TransportAddress remoteAddress = randomFrom(transport.boundAddress.boundAddresses());
+            final TransportAddress remoteAddress = randomFrom(transport.boundAddress().boundAddresses());
 
             try (Netty4HttpClient client = new Netty4HttpClient()) {
                 final String url = "/" + new String(new byte[maxInitialLineLength], Charset.forName("UTF-8"));
@@ -352,7 +352,7 @@ public class Netty4HttpServerTransportTests extends ESTestCase {
         try (Netty4HttpServerTransport transport =
                  new Netty4HttpServerTransport(settings, networkService, bigArrays, threadPool, xContentRegistry(), dispatcher)) {
             transport.start();
-            final TransportAddress remoteAddress = randomFrom(transport.boundAddress.boundAddresses());
+            final TransportAddress remoteAddress = randomFrom(transport.boundAddress().boundAddresses());
 
             AtomicBoolean channelClosed = new AtomicBoolean(false);
 

plugins/transport-nio/src/main/java/org/elasticsearch/http/nio/NioHttpServerTransport.java

@@ -42,7 +42,7 @@ import org.elasticsearch.http.BindHttpException;
 import org.elasticsearch.http.HttpHandlingSettings;
 import org.elasticsearch.http.HttpServerTransport;
 import org.elasticsearch.http.HttpStats;
-import org.elasticsearch.http.netty4.AbstractHttpServerTransport;
+import org.elasticsearch.http.AbstractHttpServerTransport;
 import org.elasticsearch.nio.AcceptingSelector;
 import org.elasticsearch.nio.AcceptorEventHandler;
 import org.elasticsearch.nio.BytesChannelContext;

server/src/main/java/org/elasticsearch/http/netty4/AbstractHttpServerTransport.java → server/src/main/java/org/elasticsearch/http/AbstractHttpServerTransport.java

@@ -17,7 +17,7 @@
  * under the License.
  */
 
-package org.elasticsearch.http.netty4;
+package org.elasticsearch.http;
 
 import com.carrotsearch.hppc.IntHashSet;
 import com.carrotsearch.hppc.IntSet;
@@ -30,8 +30,6 @@ import org.elasticsearch.common.transport.PortsRange;
 import org.elasticsearch.common.transport.TransportAddress;
 import org.elasticsearch.common.unit.ByteSizeValue;
 import org.elasticsearch.common.util.concurrent.ThreadContext;
-import org.elasticsearch.http.BindHttpException;
-import org.elasticsearch.http.HttpInfo;
 import org.elasticsearch.rest.RestChannel;
 import org.elasticsearch.rest.RestRequest;
 import org.elasticsearch.threadpool.ThreadPool;

modules/transport-netty4/src/test/java/org/elasticsearch/http/netty4/Netty4HttpPublishPortTests.java → server/src/test/java/org/elasticsearch/http/AbstractHttpServerTransportTests.java

@@ -17,13 +17,11 @@
  * under the License.
  */
 
-package org.elasticsearch.http.netty4;
+package org.elasticsearch.http;
 
 import org.elasticsearch.common.network.NetworkUtils;
 import org.elasticsearch.common.settings.Settings;
 import org.elasticsearch.common.transport.TransportAddress;
-import org.elasticsearch.http.BindHttpException;
-import org.elasticsearch.http.HttpTransportSettings;
 import org.elasticsearch.test.ESTestCase;
 
 import java.net.UnknownHostException;
@@ -32,11 +30,11 @@ import java.util.List;
 
 import static java.net.InetAddress.getByName;
 import static java.util.Arrays.asList;
-import static org.elasticsearch.http.netty4.Netty4HttpServerTransport.resolvePublishPort;
+import static org.elasticsearch.http.AbstractHttpServerTransport.resolvePublishPort;
 import static org.hamcrest.Matchers.containsString;
 import static org.hamcrest.Matchers.equalTo;
 
-public class Netty4HttpPublishPortTests extends ESTestCase {
+public class AbstractHttpServerTransportTests extends ESTestCase {
 
     public void testHttpPublishPort() throws Exception {
         int boundPort = randomIntBetween(9000, 9100);
@@ -88,5 +86,4 @@ public class Netty4HttpPublishPortTests extends ESTestCase {
         }
         return addresses;
     }
-
 }