Merge branch 'gh-3014'

spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/web/ServerProperties.java

@@ -56,6 +56,7 @@ import org.springframework.util.StringUtils;
  * @author Stephane Nicoll
  * @author Andy Wilkinson
  * @author Ivan Sopov
+ * @author Marcos Barbero
  */
 @ConfigurationProperties(prefix = "server", ignoreUnknownFields = false)
 public class ServerProperties implements EmbeddedServletContainerCustomizer, Ordered {
@@ -578,6 +579,21 @@ public class ServerProperties implements EmbeddedServletContainerCustomizer, Ord
 
 		private Boolean directBuffers;
 
+		/**
+		 * Format pattern for access logs.
+		 */
+		private String accessLogPattern = "common";
+
+		/**
+		 * Enable access log.
+		 */
+		private boolean accessLogEnabled = false;
+
+		/**
+		 * Undertow access log directory.
+		 */
+		private File accessLogDir = new File("logs");
+
 		public Integer getBufferSize() {
 			return this.bufferSize;
 		}
@@ -618,12 +634,39 @@ public class ServerProperties implements EmbeddedServletContainerCustomizer, Ord
 			this.directBuffers = directBuffers;
 		}
 
+		public String getAccessLogPattern() {
+			return this.accessLogPattern;
+		}
+
+		public void setAccessLogPattern(String accessLogPattern) {
+			this.accessLogPattern = accessLogPattern;
+		}
+
+		public boolean isAccessLogEnabled() {
+			return this.accessLogEnabled;
+		}
+
+		public void setAccessLogEnabled(boolean accessLogEnabled) {
+			this.accessLogEnabled = accessLogEnabled;
+		}
+
+		public File getAccessLogDir() {
+			return this.accessLogDir;
+		}
+
+		public void setAccessLogDir(File accessLogDir) {
+			this.accessLogDir = accessLogDir;
+		}
+
 		void customizeUndertow(UndertowEmbeddedServletContainerFactory factory) {
 			factory.setBufferSize(this.bufferSize);
 			factory.setBuffersPerRegion(this.buffersPerRegion);
 			factory.setIoThreads(this.ioThreads);
 			factory.setWorkerThreads(this.workerThreads);
 			factory.setDirectBuffers(this.directBuffers);
+			factory.setAccessLogDirectory(this.accessLogDir);
+			factory.setAccessLogPattern(this.accessLogPattern);
+			factory.setAccessLogEnabled(this.accessLogEnabled);
 		}
 
 	}

spring-boot-docs/src/main/asciidoc/appendix-application-properties.adoc

@@ -95,6 +95,9 @@ content into your application; rather pick only the properties that you need.
 	server.tomcat.max-http-header-size= # maximum size in bytes of the HTTP message header
 	server.tomcat.max-threads = 0 # number of threads in protocol handler
 	server.tomcat.uri-encoding = UTF-8 # character encoding to use for URL decoding
+	server.undertow.access-log-enabled=false # if access logging is enabled
+	server.undertow.access-log-pattern=common # log pattern of the access log
+	server.undertow.access-log-dir=logs # access logs directory
 
 	# SPRING MVC ({sc-spring-boot-autoconfigure}/web/WebMvcProperties.{sc-ext}[WebMvcProperties])
 	spring.mvc.locale= # set fixed locale, e.g. en_UK

spring-boot-samples/spring-boot-sample-undertow/src/main/resources/application.properties

+server.undertow.access-log-enabled=true
+server.undertow.access-log-dir=target/logs
+server.undertow.access-log-pattern=combined
\ No newline at end of file

spring-boot/src/main/java/org/springframework/boot/context/embedded/tomcat/TomcatEmbeddedServletContainerFactory.java

@@ -382,7 +382,17 @@ public class TomcatEmbeddedServletContainerFactory extends
 		return new TomcatEmbeddedServletContainer(tomcat, getPort() >= 0);
 	}
 
-	private File createTempDir(String prefix) {
+	@Override
+	public void setResourceLoader(ResourceLoader resourceLoader) {
+		this.resourceLoader = resourceLoader;
+	}
+
+	/**
+	 * Returns the absolute temp dir for given web server.
+	 * @param prefix webserver name
+	 * @return The temp dir for given web server.
+	 */
+	protected File createTempDir(String prefix) {
 		try {
 			File tempFolder = File.createTempFile(prefix + ".", "." + getPort());
 			tempFolder.delete();
@@ -396,11 +406,6 @@ public class TomcatEmbeddedServletContainerFactory extends
 		}
 	}
 
-	@Override
-	public void setResourceLoader(ResourceLoader resourceLoader) {
-		this.resourceLoader = resourceLoader;
-	}
-
 	/**
 	 * Set the Tomcat base directory. If not specified a temporary directory will be used.
 	 * @param baseDirectory the tomcat base directory

spring-boot/src/main/java/org/springframework/boot/context/embedded/undertow/UndertowEmbeddedServletContainerFactory.java

@@ -19,6 +19,11 @@ package org.springframework.boot.context.embedded.undertow;
 import io.undertow.Undertow;
 import io.undertow.Undertow.Builder;
 import io.undertow.UndertowMessages;
+import io.undertow.server.HandlerWrapper;
+import io.undertow.server.HttpHandler;
+import io.undertow.server.handlers.accesslog.AccessLogHandler;
+import io.undertow.server.handlers.accesslog.AccessLogReceiver;
+import io.undertow.server.handlers.accesslog.DefaultAccessLogReceiver;
 import io.undertow.server.handlers.resource.ClassPathResourceManager;
 import io.undertow.server.handlers.resource.FileResourceManager;
 import io.undertow.server.handlers.resource.Resource;
@@ -69,8 +74,11 @@ import org.springframework.context.ResourceLoaderAware;
 import org.springframework.core.io.ResourceLoader;
 import org.springframework.util.Assert;
 import org.springframework.util.ResourceUtils;
+import org.xnio.OptionMap;
 import org.xnio.Options;
 import org.xnio.SslClientAuthMode;
+import org.xnio.Xnio;
+import org.xnio.XnioWorker;
 
 /**
  * {@link EmbeddedServletContainerFactory} that can be used to create
@@ -81,6 +89,7 @@ import org.xnio.SslClientAuthMode;
  *
  * @author Ivan Sopov
  * @author Andy Wilkinson
+ * @author Marcos Barbero
  * @since 1.2.0
  * @see UndertowEmbeddedServletContainer
  */
@@ -105,6 +114,12 @@ public class UndertowEmbeddedServletContainerFactory extends
 
 	private Boolean directBuffers;
 
+	private File accessLogDirectory;
+
+	private String accessLogPattern;
+
+	private boolean accessLogEnabled = false;
+
 	/**
 	 * Create a new {@link UndertowEmbeddedServletContainerFactory} instance.
 	 */
@@ -337,6 +352,9 @@ public class UndertowEmbeddedServletContainerFactory extends
 		for (UndertowDeploymentInfoCustomizer customizer : this.deploymentInfoCustomizers) {
 			customizer.customize(deployment);
 		}
+		if (isAccessLogEnabled()) {
+			configureAccessLog(deployment);
+		}
 		DeploymentManager manager = Servlets.defaultContainer().addDeployment(deployment);
 		manager.deploy();
 		SessionManager sessionManager = manager.getDeployment().getSessionManager();
@@ -345,6 +363,44 @@ public class UndertowEmbeddedServletContainerFactory extends
 		return manager;
 	}
 
+	private void configureAccessLog(DeploymentInfo deploymentInfo) {
+		deploymentInfo.addInitialHandlerChainWrapper(new HandlerWrapper() {
+			@Override
+			public HttpHandler wrap(HttpHandler handler) {
+				return createAccessLogHandler(handler);
+			}
+		});
+	}
+
+	private AccessLogHandler createAccessLogHandler(HttpHandler handler) {
+		try {
+			createAccessLogDirectoryIfNecessary();
+			AccessLogReceiver accessLogReceiver = new DefaultAccessLogReceiver(
+					createWorker(), this.accessLogDirectory, "access_log");
+			String formatString = (this.accessLogPattern != null) ? this.accessLogPattern
+					: "common";
+			return new AccessLogHandler(handler, accessLogReceiver, formatString,
+					Undertow.class.getClassLoader());
+		}
+		catch (IOException ex) {
+			throw new IllegalStateException("Failed to create AccessLogHandler", ex);
+		}
+	}
+
+	private void createAccessLogDirectoryIfNecessary() {
+		Assert.notNull(this.accessLogDirectory, "accesslogDirectory must not be null");
+		if (!this.accessLogDirectory.isDirectory() && !this.accessLogDirectory.mkdirs()) {
+			throw new IllegalStateException("Failed to create access log directory '"
+					+ this.accessLogDirectory + "'");
+		}
+	}
+
+	private XnioWorker createWorker() throws IOException {
+		Xnio xnio = Xnio.getInstance(Undertow.class.getClassLoader());
+		OptionMap.Builder builder = OptionMap.builder();
+		return xnio.createWorker(builder.getMap());
+	}
+
 	private void registerServletContainerInitializerToDriveServletContextInitializers(
 			DeploymentInfo deployment, ServletContextInitializer... initializers) {
 		ServletContextInitializer[] mergedInitializers = mergeInitializers(initializers);
@@ -442,6 +498,22 @@ public class UndertowEmbeddedServletContainerFactory extends
 		this.directBuffers = directBuffers;
 	}
 
+	public void setAccessLogDirectory(File accessLogDirectory) {
+		this.accessLogDirectory = accessLogDirectory;
+	}
+
+	public void setAccessLogPattern(String accessLogPattern) {
+		this.accessLogPattern = accessLogPattern;
+	}
+
+	public void setAccessLogEnabled(boolean accessLogEnabled) {
+		this.accessLogEnabled = accessLogEnabled;
+	}
+
+	public boolean isAccessLogEnabled() {
+		return this.accessLogEnabled;
+	}
+
 	/**
 	 * Undertow {@link ResourceManager} for JAR resources.
 	 */