Add port scan to ServerProperties (server.scan=true)

Also moved ServerProperties to autoconfigure project.

spring-boot-actuator/src/main/java/org/springframework/boot/actuate/autoconfigure/EndpointWebMvcAutoConfiguration.java

@@ -40,9 +40,9 @@ import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean
 import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication;
 import org.springframework.boot.autoconfigure.web.DispatcherServletAutoConfiguration;
 import org.springframework.boot.autoconfigure.web.EmbeddedServletContainerAutoConfiguration;
+import org.springframework.boot.autoconfigure.web.ServerProperties;
 import org.springframework.boot.autoconfigure.web.WebMvcAutoConfiguration;
 import org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext;
-import org.springframework.boot.context.embedded.properties.ServerProperties;
 import org.springframework.context.ApplicationContext;
 import org.springframework.context.ApplicationContextAware;
 import org.springframework.context.ApplicationListener;

spring-boot-actuator/src/main/java/org/springframework/boot/actuate/properties/ManagementServerProperties.java

@@ -21,7 +21,7 @@ import java.net.InetAddress;
 import javax.validation.constraints.NotNull;
 
 import org.springframework.boot.autoconfigure.security.SecurityPrequisite;
-import org.springframework.boot.context.embedded.properties.ServerProperties;
+import org.springframework.boot.autoconfigure.web.ServerProperties;
 import org.springframework.boot.context.properties.ConfigurationProperties;
 import org.springframework.security.config.http.SessionCreationPolicy;
 import org.springframework.util.ClassUtils;

spring-boot-autoconfigure/pom.xml

@@ -56,6 +56,11 @@
 			<artifactId>hibernate-entitymanager</artifactId>
 			<optional>true</optional>
 		</dependency>
+		<dependency>
+			<groupId>org.hibernate</groupId>
+			<artifactId>hibernate-validator</artifactId>
+			<optional>true</optional>
+		</dependency>
 		<dependency>
 			<groupId>org.hibernate.javax.persistence</groupId>
 			<artifactId>hibernate-jpa-2.0-api</artifactId>

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

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package org.springframework.boot.context.embedded.properties;
+package org.springframework.boot.autoconfigure.web;
 
 import java.io.File;
 import java.net.InetAddress;
@@ -35,6 +35,7 @@ import org.springframework.boot.context.embedded.tomcat.TomcatConnectorCustomize
 import org.springframework.boot.context.embedded.tomcat.TomcatContextCustomizer;
 import org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory;
 import org.springframework.boot.context.properties.ConfigurationProperties;
+import org.springframework.util.SocketUtils;
 import org.springframework.util.StringUtils;
 
 /**
@@ -53,6 +54,8 @@ public class ServerProperties implements EmbeddedServletContainerCustomizer {
 
 	private Integer sessionTimeout;
 
+	private boolean scan = false;
+
 	@NotNull
 	private String contextPath = "";
 
@@ -78,6 +81,14 @@ public class ServerProperties implements EmbeddedServletContainerCustomizer {
 		this.port = port;
 	}
 
+	public boolean getScan() {
+		return this.scan;
+	}
+
+	public void setScan(boolean scan) {
+		this.scan = scan;
+	}
+
 	public InetAddress getAddress() {
 		return this.address;
 	}
@@ -100,8 +111,12 @@ public class ServerProperties implements EmbeddedServletContainerCustomizer {
 
 	@Override
 	public void customize(ConfigurableEmbeddedServletContainerFactory factory) {
-		if (getPort() != null) {
-			factory.setPort(getPort());
+		Integer port = getPort();
+		if (this.scan) {
+			port = SocketUtils.findAvailableTcpPort(port != null ? 8080 : port);
+		}
+		if (port != null) {
+			factory.setPort(port);
 		}
 		if (getAddress() != null) {
 			factory.setAddress(getAddress());

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

@@ -21,7 +21,6 @@ import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
 import org.springframework.boot.context.embedded.ConfigurableEmbeddedServletContainerFactory;
 import org.springframework.boot.context.embedded.EmbeddedServletContainerCustomizer;
-import org.springframework.boot.context.embedded.properties.ServerProperties;
 import org.springframework.boot.context.properties.EnableConfigurationProperties;
 import org.springframework.context.ApplicationContext;
 import org.springframework.context.ApplicationContextAware;
@@ -44,7 +43,7 @@ public class ServerPropertiesAutoConfiguration implements ApplicationContextAwar
 
 	private ApplicationContext applicationContext;
 
-	@Bean(name = "org.springframework.boot.context.embedded.properties.ServerProperties")
+	@Bean(name = "org.springframework.boot.autoconfigure.web.ServerProperties")
 	@ConditionalOnMissingBean
 	public ServerProperties serverProperties() {
 		return new ServerProperties();

spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/web/ServerPropertiesAutoConfigurationTests.java

@@ -32,7 +32,6 @@ import org.springframework.boot.context.embedded.EmbeddedServletContainerCustomi
 import org.springframework.boot.context.embedded.EmbeddedServletContainerCustomizerBeanPostProcessor;
 import org.springframework.boot.context.embedded.EmbeddedServletContainerFactory;
 import org.springframework.boot.context.embedded.jetty.JettyEmbeddedServletContainerFactory;
-import org.springframework.boot.context.embedded.properties.ServerProperties;
 import org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory;
 import org.springframework.context.ApplicationContextException;
 import org.springframework.context.annotation.Bean;

spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/web/ServerPropertiesTests.java

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package org.springframework.boot.context.embedded.properties;
+package org.springframework.boot.autoconfigure.web;
 
 import java.net.InetAddress;
 import java.util.Collections;
@@ -24,9 +24,12 @@ import java.util.Map;
 import org.junit.Test;
 import org.springframework.beans.MutablePropertyValues;
 import org.springframework.boot.bind.RelaxedDataBinder;
+import org.springframework.boot.context.embedded.ConfigurableEmbeddedServletContainerFactory;
+import org.springframework.boot.context.embedded.MockEmbeddedServletContainerFactory;
 
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
 
 /**
  * Tests for {@link ServerProperties}.
@@ -68,6 +71,15 @@ public class ServerPropertiesTests {
 				.getProtocolHeader());
 	}
 
+	@Test
+	public void testPortScan() throws Exception {
+		this.properties.setScan(true);
+		this.properties.setPort(1000);
+		ConfigurableEmbeddedServletContainerFactory factory = new MockEmbeddedServletContainerFactory();
+		this.properties.customize(factory);
+		assertTrue(factory.getPort() > 1000);
+	}
+
 	// FIXME test customize
 
 }

spring-boot/src/main/java/org/springframework/boot/context/embedded/jetty/JettyEmbeddedServletContainerFactory.java

@@ -123,6 +123,7 @@ public class JettyEmbeddedServletContainerFactory extends
 		postProcessWebAppContext(context);
 
 		server.setHandler(context);
+		this.logger.info("Server initialized with port: " + getPort());
 		return getJettyEmbeddedServletContainer(server);
 	}
 

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

@@ -134,6 +134,7 @@ public class TomcatEmbeddedServletContainerFactory extends
 		tomcat.getEngine().setBackgroundProcessorDelay(-1);
 
 		prepareContext(tomcat.getHost(), initializers);
+		this.logger.info("Server initialized with port: " + getPort());
 		return getTomcatEmbeddedServletContainer(tomcat);
 	}