Allow to configure Tomcat baseDir

This commit also set Tomcat baseDir to java.io.tmpdir for
integration tests in order to avoid creation of temporary directories
in the project root.

spring-web-reactive/src/main/java/org/springframework/http/server/reactive/boot/TomcatHttpServer.java

@@ -20,13 +20,11 @@ import java.io.File;
 
 import org.apache.catalina.Context;
 import org.apache.catalina.LifecycleException;
-import org.apache.catalina.core.StandardHost;
 import org.apache.catalina.startup.Tomcat;
 
 import org.springframework.beans.factory.InitializingBean;
 import org.springframework.http.server.reactive.ServletHttpHandlerAdapter;
 import org.springframework.util.Assert;
-import org.springframework.util.SocketUtils;
 
 
 /**
@@ -38,6 +36,16 @@ public class TomcatHttpServer extends HttpServerSupport implements InitializingB
 
 	private boolean running;
 
+	private String baseDir;
+
+
+	public TomcatHttpServer() {
+	}
+
+	public TomcatHttpServer(String baseDir) {
+		this.baseDir = baseDir;
+	}
+
 
 	@Override
 	public boolean isRunning() {
@@ -48,6 +56,9 @@ public class TomcatHttpServer extends HttpServerSupport implements InitializingB
 	public void afterPropertiesSet() throws Exception {
 
 		this.tomcatServer = new Tomcat();
+		if (this.baseDir != null) {
+			this.tomcatServer.setBaseDir(baseDir);
+		}
 		this.tomcatServer.setHostname(getHost());
 		this.tomcatServer.setPort(getPort());
 

spring-web-reactive/src/test/java/org/springframework/http/server/reactive/AbstractHttpHandlerIntegrationTests.java

@@ -16,6 +16,8 @@
 
 package org.springframework.http.server.reactive;
 
+import java.io.File;
+
 import org.junit.After;
 import org.junit.Before;
 import org.junit.runner.RunWith;
@@ -41,11 +43,12 @@ public abstract class AbstractHttpHandlerIntegrationTests {
 
 	@Parameterized.Parameters(name = "server [{0}]")
 	public static Object[][] arguments() {
+		File base = new File(System.getProperty("java.io.tmpdir"));
 		return new Object[][] {
 				{new JettyHttpServer()},
 				{new RxNettyHttpServer()},
 				{new ReactorHttpServer()},
-				{new TomcatHttpServer()},
+				{new TomcatHttpServer(base.getAbsolutePath())},
 				{new UndertowHttpServer()}
 		};
 	}