Add nio-transport as option for http smoke tests (#31162)

This is related to #27260 and #28898. This commit adds the transport-nio
plugin as a random option when running the http smoke tests. As part of
this PR, I identified an issue where cors support was not properly
enabled causing these tests to fail when using transport-nio. This
commit also fixes that issue.

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

@@ -202,15 +202,7 @@ public Netty4HttpServerTransport(Settings settings, NetworkService networkServic
         this.maxHeaderSize = SETTING_HTTP_MAX_HEADER_SIZE.get(settings);
         this.maxInitialLineLength = SETTING_HTTP_MAX_INITIAL_LINE_LENGTH.get(settings);
         this.pipeliningMaxEvents = SETTING_PIPELINING_MAX_EVENTS.get(settings);
-        this.httpHandlingSettings = new HttpHandlingSettings(Math.toIntExact(maxContentLength.getBytes()),
-            Math.toIntExact(maxChunkSize.getBytes()),
-            Math.toIntExact(maxHeaderSize.getBytes()),
-            Math.toIntExact(maxInitialLineLength.getBytes()),
-            SETTING_HTTP_RESET_COOKIES.get(settings),
-            SETTING_HTTP_COMPRESSION.get(settings),
-            SETTING_HTTP_COMPRESSION_LEVEL.get(settings),
-            SETTING_HTTP_DETAILED_ERRORS_ENABLED.get(settings),
-            pipeliningMaxEvents);
+        this.httpHandlingSettings = HttpHandlingSettings.fromSettings(settings);
 
         this.maxCompositeBufferComponents = SETTING_HTTP_NETTY_MAX_COMPOSITE_BUFFER_COMPONENTS.get(settings);
         this.workerCount = SETTING_HTTP_WORKER_COUNT.get(settings);
@@ -446,7 +438,7 @@ protected void initChannel(Channel ch) throws Exception {
             if (handlingSettings.isCompression()) {
                 ch.pipeline().addLast("encoder_compress", new HttpContentCompressor(handlingSettings.getCompressionLevel()));
             }
-            if (SETTING_CORS_ENABLED.get(transport.settings())) {
+            if (handlingSettings.isCorsEnabled()) {
                 ch.pipeline().addLast("cors", new Netty4CorsHandler(transport.getCorsConfig()));
             }
             ch.pipeline().addLast("pipelining", new Netty4HttpPipeliningHandler(transport.logger, transport.pipeliningMaxEvents));

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

@@ -137,15 +137,7 @@ public NioHttpServerTransport(Settings settings, NetworkService networkService,
         ByteSizeValue maxHeaderSize = SETTING_HTTP_MAX_HEADER_SIZE.get(settings);
         ByteSizeValue maxInitialLineLength = SETTING_HTTP_MAX_INITIAL_LINE_LENGTH.get(settings);
         int pipeliningMaxEvents = SETTING_PIPELINING_MAX_EVENTS.get(settings);
-        this.httpHandlingSettings = new HttpHandlingSettings(Math.toIntExact(maxContentLength.getBytes()),
-            Math.toIntExact(maxChunkSize.getBytes()),
-            Math.toIntExact(maxHeaderSize.getBytes()),
-            Math.toIntExact(maxInitialLineLength.getBytes()),
-            SETTING_HTTP_RESET_COOKIES.get(settings),
-            SETTING_HTTP_COMPRESSION.get(settings),
-            SETTING_HTTP_COMPRESSION_LEVEL.get(settings),
-            SETTING_HTTP_DETAILED_ERRORS_ENABLED.get(settings),
-            pipeliningMaxEvents);
+        this.httpHandlingSettings = HttpHandlingSettings.fromSettings(settings);;
         this.corsConfig = buildCorsConfig(settings);
 
         this.tcpNoDelay = SETTING_HTTP_TCP_NO_DELAY.get(settings);

plugins/transport-nio/src/test/java/org/elasticsearch/http/nio/HttpReadWriteHandlerTests.java

@@ -56,6 +56,7 @@
 import java.util.List;
 import java.util.function.BiConsumer;
 
+import static org.elasticsearch.http.HttpTransportSettings.SETTING_CORS_ENABLED;
 import static org.elasticsearch.http.HttpTransportSettings.SETTING_HTTP_COMPRESSION;
 import static org.elasticsearch.http.HttpTransportSettings.SETTING_HTTP_COMPRESSION_LEVEL;
 import static org.elasticsearch.http.HttpTransportSettings.SETTING_HTTP_DETAILED_ERRORS_ENABLED;
@@ -94,7 +95,8 @@ public void setMocks() {
             SETTING_HTTP_COMPRESSION.getDefault(settings),
             SETTING_HTTP_COMPRESSION_LEVEL.getDefault(settings),
             SETTING_HTTP_DETAILED_ERRORS_ENABLED.getDefault(settings),
-            SETTING_PIPELINING_MAX_EVENTS.getDefault(settings));
+            SETTING_PIPELINING_MAX_EVENTS.getDefault(settings),
+            SETTING_CORS_ENABLED.getDefault(settings));
         ThreadContext threadContext = new ThreadContext(settings);
         nioSocketChannel = mock(NioSocketChannel.class);
         handler = new HttpReadWriteHandler(nioSocketChannel, transport, httpHandlingSettings, NamedXContentRegistry.EMPTY,

qa/smoke-test-http/build.gradle

@@ -23,6 +23,7 @@ apply plugin: 'elasticsearch.test-with-dependencies'
 
 dependencies {
     testCompile project(path: ':modules:transport-netty4', configuration: 'runtime') // for http
+    testCompile project(path: ':plugins:transport-nio', configuration: 'runtime') // for http
 }
 
 integTestRunner {

qa/smoke-test-http/src/test/java/org/elasticsearch/http/HttpSmokeTestCase.java

@@ -25,6 +25,7 @@
 import org.elasticsearch.transport.MockTcpTransportPlugin;
 import org.elasticsearch.transport.Netty4Plugin;
 import org.elasticsearch.transport.nio.MockNioTransportPlugin;
+import org.elasticsearch.transport.nio.NioTransportPlugin;
 import org.junit.BeforeClass;
 
 import java.util.Arrays;
@@ -39,22 +40,33 @@ public abstract class HttpSmokeTestCase extends ESIntegTestCase {
     @SuppressWarnings("unchecked")
     @BeforeClass
     public static void setUpTransport() {
-        nodeTransportTypeKey = getTypeKey(randomFrom(getTestTransportPlugin(), Netty4Plugin.class));
-        nodeHttpTypeKey = getTypeKey(Netty4Plugin.class);
-        clientTypeKey = getTypeKey(randomFrom(getTestTransportPlugin(), Netty4Plugin.class));
+        nodeTransportTypeKey = getTypeKey(randomFrom(getTestTransportPlugin(), Netty4Plugin.class, NioTransportPlugin.class));
+        nodeHttpTypeKey = getHttpTypeKey(randomFrom(Netty4Plugin.class, NioTransportPlugin.class));
+        clientTypeKey = getTypeKey(randomFrom(getTestTransportPlugin(), Netty4Plugin.class, NioTransportPlugin.class));
     }
 
     private static String getTypeKey(Class<? extends Plugin> clazz) {
         if (clazz.equals(MockTcpTransportPlugin.class)) {
             return MockTcpTransportPlugin.MOCK_TCP_TRANSPORT_NAME;
         } else if (clazz.equals(MockNioTransportPlugin.class)) {
             return MockNioTransportPlugin.MOCK_NIO_TRANSPORT_NAME;
+        } else if (clazz.equals(NioTransportPlugin.class)) {
+            return NioTransportPlugin.NIO_TRANSPORT_NAME;
         } else {
             assert clazz.equals(Netty4Plugin.class);
             return Netty4Plugin.NETTY_TRANSPORT_NAME;
         }
     }
 
+    private static String getHttpTypeKey(Class<? extends Plugin> clazz) {
+        if (clazz.equals(NioTransportPlugin.class)) {
+            return NioTransportPlugin.NIO_HTTP_TRANSPORT_NAME;
+        } else {
+            assert clazz.equals(Netty4Plugin.class);
+            return Netty4Plugin.NETTY_HTTP_TRANSPORT_NAME;
+        }
+    }
+
     @Override
     protected boolean addMockHttpTransport() {
         return false; // enable http
@@ -70,12 +82,12 @@ protected Settings nodeSettings(int nodeOrdinal) {
 
     @Override
     protected Collection<Class<? extends Plugin>> nodePlugins() {
-        return Arrays.asList(getTestTransportPlugin(), Netty4Plugin.class);
+        return Arrays.asList(getTestTransportPlugin(), Netty4Plugin.class, NioTransportPlugin.class);
     }
 
     @Override
     protected Collection<Class<? extends Plugin>> transportClientPlugins() {
-        return Arrays.asList(getTestTransportPlugin(), Netty4Plugin.class);
+        return Arrays.asList(getTestTransportPlugin(), Netty4Plugin.class, NioTransportPlugin.class);
     }
 
     @Override

server/src/main/java/org/elasticsearch/http/HttpHandlingSettings.java

@@ -22,6 +22,7 @@
 import org.elasticsearch.common.settings.Settings;
 import org.elasticsearch.common.unit.ByteSizeValue;
 
+import static org.elasticsearch.http.HttpTransportSettings.SETTING_CORS_ENABLED;
 import static org.elasticsearch.http.HttpTransportSettings.SETTING_HTTP_COMPRESSION;
 import static org.elasticsearch.http.HttpTransportSettings.SETTING_HTTP_COMPRESSION_LEVEL;
 import static org.elasticsearch.http.HttpTransportSettings.SETTING_HTTP_DETAILED_ERRORS_ENABLED;
@@ -47,7 +48,7 @@ public class HttpHandlingSettings {
 
     public HttpHandlingSettings(int maxContentLength, int maxChunkSize, int maxHeaderSize, int maxInitialLineLength,
                                 boolean resetCookies, boolean compression, int compressionLevel, boolean detailedErrorsEnabled,
-                                int pipeliningMaxEvents) {
+                                int pipeliningMaxEvents, boolean corsEnabled) {
         this.maxContentLength = maxContentLength;
         this.maxChunkSize = maxChunkSize;
         this.maxHeaderSize = maxHeaderSize;
@@ -57,6 +58,7 @@ public HttpHandlingSettings(int maxContentLength, int maxChunkSize, int maxHeade
         this.compressionLevel = compressionLevel;
         this.detailedErrorsEnabled = detailedErrorsEnabled;
         this.pipeliningMaxEvents = pipeliningMaxEvents;
+        this.corsEnabled = corsEnabled;
     }
 
     public static HttpHandlingSettings fromSettings(Settings settings) {
@@ -68,7 +70,8 @@ public static HttpHandlingSettings fromSettings(Settings settings) {
             SETTING_HTTP_COMPRESSION.get(settings),
             SETTING_HTTP_COMPRESSION_LEVEL.get(settings),
             SETTING_HTTP_DETAILED_ERRORS_ENABLED.get(settings),
-            SETTING_PIPELINING_MAX_EVENTS.get(settings));
+            SETTING_PIPELINING_MAX_EVENTS.get(settings),
+            SETTING_CORS_ENABLED.get(settings));
     }
 
     public int getMaxContentLength() {

x-pack/plugin/sql/src/test/java/org/elasticsearch/xpack/sql/action/SqlLicenseIT.java

@@ -20,6 +20,7 @@
 import org.elasticsearch.search.fetch.subphase.FetchSourceContext;
 import org.elasticsearch.test.hamcrest.ElasticsearchAssertions;
 import org.elasticsearch.transport.Netty4Plugin;
+import org.elasticsearch.transport.nio.NioTransportPlugin;
 import org.elasticsearch.xpack.sql.plugin.SqlQueryAction;
 import org.elasticsearch.xpack.sql.plugin.SqlQueryRequestBuilder;
 import org.elasticsearch.xpack.sql.plugin.SqlQueryResponse;
@@ -66,9 +67,10 @@ protected boolean addMockHttpTransport() {
     @Override
     protected Settings nodeSettings(int nodeOrdinal) {
         // Enable http so we can test JDBC licensing because only exists on the REST layer.
+        String httpPlugin = randomBoolean() ? Netty4Plugin.NETTY_HTTP_TRANSPORT_NAME : NioTransportPlugin.NIO_TRANSPORT_NAME;
         return Settings.builder()
                 .put(super.nodeSettings(nodeOrdinal))
-                .put(NetworkModule.HTTP_TYPE_KEY, Netty4Plugin.NETTY_HTTP_TRANSPORT_NAME)
+                .put(NetworkModule.HTTP_TYPE_KEY, httpPlugin)
                 .build();
     }