Add generator app for simple table of *AutoConfiguration

Run with "mvn spring-boot:run" and then scrape the Markdown from stdout.
(Result already added to docs/autoconfig.md.)

spring-boot-docs/pom.xml

@@ -36,6 +36,20 @@
 			<version>${project.version}</version>
 		</dependency>
 	</dependencies>
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.springframework.boot</groupId>
+				<artifactId>spring-boot-maven-plugin</artifactId>
+			</plugin>
+			<plugin>
+				<artifactId>maven-deploy-plugin</artifactId>
+				<configuration>
+					<skip>true</skip>
+				</configuration>
+			</plugin>
+		</plugins>
+	</build>
 	<profiles>
 		<profile>
 			<id>full</id>

spring-boot-docs/src/main/java/org/springframework/boot/docs/AutoConfigurationDocsApplication.java

@@ -0,0 +1,96 @@
+package org.springframework.boot.docs;
+
+import java.io.InputStream;
+import java.util.Properties;
+import java.util.Set;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
+import org.springframework.core.io.Resource;
+import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
+import org.springframework.core.io.support.ResourcePatternResolver;
+import org.springframework.util.StringUtils;
+
+/**
+ * Simple generator for a Markdown table of autoconfig classes and links to
+ * documentation. Prints report out on stdout.
+ * 
+ * @author Dave Syer
+ * 
+ */
+public class AutoConfigurationDocsApplication {
+
+	public static void main(String args[]) throws Throwable {
+		AutoConfigurationDocumentationClient autoConfigurationDocumentationClient = new AutoConfigurationDocumentationClient();
+		autoConfigurationDocumentationClient.discoverConfigurationClasses();
+	}
+
+}
+
+class AutoConfigurationDocumentationClient {
+
+	private final static String SPRING_FACTORIES_PATH_EXPRESSION = ResourcePatternResolver.CLASSPATH_ALL_URL_PREFIX
+			+ "META-INF/spring.factories";
+
+	private final static String AUTO_CONFIGURATION_KEY = EnableAutoConfiguration.class
+			.getName();
+
+	private Log logger = LogFactory.getLog(getClass());
+
+	private ResourcePatternResolver resourcePatternResolver = new PathMatchingResourcePatternResolver();
+
+	private String processTopLevelConfigurationClass(String location, String name) {
+		logger.debug("Processing: " + name);
+		String simpleName = StringUtils.getFilenameExtension(name);
+		String project = extractProject(location);
+		String projectPath = "https://github.com/spring-projects/spring-boot/tree/master/"
+				+ project;
+		String classPath = projectPath + "/src/main/java/" + name.replace(".", "/")
+				+ ".java";
+		String javadoc = "http://docs.spring.io/spring-boot/docs/1.0.0.RC1/api/"
+				+ name.replace(".", "/") + ".html";
+		return String.format("| [%s](%s) | [javadoc](%s) | [%s](%s) |", simpleName,
+				classPath, javadoc, project, projectPath);
+	}
+
+	private String extractProject(String location) {
+		if (location.startsWith("file:")) {
+			String result = location.substring(0, location.indexOf("/target"));
+			result = result.replaceAll(".*/", "");
+			return result;
+		}
+		String result = location.substring(0, location.indexOf(".jar!"));
+		result = result.replaceAll(".*/", "");
+		result = result.replaceAll("-[0-9].*", "");
+		return result;
+	}
+
+	public void discoverConfigurationClasses() throws Exception {
+		StringBuilder builder = new StringBuilder(
+				"| Configuration Class | Links | Project |\n|---|---|---|\n");
+		Resource[] resources = this.resourcePatternResolver
+				.getResources(SPRING_FACTORIES_PATH_EXPRESSION);
+		for (Resource r : resources) {
+			try {
+				InputStream inputStream = r.getInputStream();
+				Properties properties = new Properties();
+				properties.load(inputStream);
+				if (properties.containsKey(AUTO_CONFIGURATION_KEY)) {
+					String rawValue = (String) properties.get(AUTO_CONFIGURATION_KEY);
+					Set<String> clazzNames = StringUtils
+							.commaDelimitedListToSet(rawValue);
+					for (String name : clazzNames) {
+						builder.append(
+								processTopLevelConfigurationClass(r.getURI().toString(),
+										name)).append("\n");
+					}
+				}
+			} catch (Exception e) {
+				// Ignore
+			}
+		}
+		System.out.println(builder);
+	}
+
+}

spring-boot-docs/src/test/java/org/springframework/boot/docs/ApplicationTests.java

@@ -0,0 +1,17 @@
+package org.springframework.boot.docs;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.boot.test.SpringApplicationContextLoader;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+
+@RunWith(SpringJUnit4ClassRunner.class)
+@ContextConfiguration(classes = AutoConfigurationDocsApplication.class, loader=SpringApplicationContextLoader.class)
+public class ApplicationTests {
+
+	@Test
+	public void contextLoads() {
+	}
+
+}