[bs-72], [bs-75] Add Batch plugin features

* Auto config in main bootstrap jar
* Compiler enhancements in groovy cli
* Sample script in cli samples

[Fixes #48716881], [Fixes #48788313]

spring-bootstrap/src/main/java/org/springframework/bootstrap/autoconfigure/batch/BatchAutoConfiguration.java

@@ -0,0 +1,48 @@
+/*
+ * Copyright 2012-2013 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.bootstrap.autoconfigure.batch;
+
+import org.springframework.batch.core.launch.JobLauncher;
+import org.springframework.bootstrap.CommandLineRunner;
+import org.springframework.bootstrap.context.annotation.ConditionalOnClass;
+import org.springframework.bootstrap.context.annotation.ConditionalOnMissingBean;
+import org.springframework.bootstrap.context.annotation.EnableAutoConfiguration;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+/**
+ * {@link EnableAutoConfiguration Auto-configuration} for Spring Batch.
+ * 
+ * @author Dave Syer
+ */
+@Configuration
+@ConditionalOnClass({ JobLauncher.class })
+public class BatchAutoConfiguration {
+
+	@Bean
+	// Harmless to always include this, but maybe could make it conditional as well
+	public BatchDatabaseInitializer batchDatabaseInitializer() {
+		return new BatchDatabaseInitializer();
+	}
+
+	@Bean
+	@ConditionalOnMissingBean({ CommandLineRunner.class })
+	public JobLauncherCommandLineRunner jobLauncherCommandLineRunner() {
+		return new JobLauncherCommandLineRunner();
+	}
+
+}

spring-bootstrap/src/main/java/org/springframework/bootstrap/autoconfigure/batch/BatchDatabaseInitializer.java

@@ -0,0 +1,53 @@
+/*
+ * Copyright 2012-2013 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.bootstrap.autoconfigure.batch;
+
+import javax.annotation.PostConstruct;
+import javax.sql.DataSource;
+
+import org.springframework.batch.support.DatabaseType;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.core.io.ResourceLoader;
+import org.springframework.jdbc.datasource.init.DatabasePopulatorUtils;
+import org.springframework.jdbc.datasource.init.ResourceDatabasePopulator;
+import org.springframework.stereotype.Component;
+
+@Component
+public class BatchDatabaseInitializer {
+
+	@Autowired
+	private DataSource dataSource;
+
+	@Autowired
+	private ResourceLoader resourceLoader;
+
+	@PostConstruct
+	protected void initialize() throws Exception {
+		String platform = DatabaseType.fromMetaData(this.dataSource).toString()
+				.toLowerCase();
+		if ("hsql".equals(platform)) {
+			platform = "hsqldb";
+		}
+		ResourceDatabasePopulator populator = new ResourceDatabasePopulator();
+		populator
+				.addScript(this.resourceLoader
+						.getResource("org/springframework/batch/core/schema-" + platform
+								+ ".sql"));
+		populator.setContinueOnError(true);
+		DatabasePopulatorUtils.execute(populator, this.dataSource);
+	}
+
+}

spring-bootstrap/src/main/java/org/springframework/bootstrap/autoconfigure/batch/JobLauncherCommandLineRunner.java

@@ -0,0 +1,62 @@
+/*
+ * Copyright 2012-2013 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.bootstrap.autoconfigure.batch;
+
+import java.util.Arrays;
+import java.util.Properties;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.springframework.batch.core.Job;
+import org.springframework.batch.core.JobExecutionException;
+import org.springframework.batch.core.converter.DefaultJobParametersConverter;
+import org.springframework.batch.core.converter.JobParametersConverter;
+import org.springframework.batch.core.launch.JobLauncher;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.bootstrap.CommandLineRunner;
+import org.springframework.stereotype.Component;
+import org.springframework.util.StringUtils;
+
+@Component
+// FIXME: what to do with more than one Job?
+public class JobLauncherCommandLineRunner implements CommandLineRunner {
+
+	private static Log logger = LogFactory.getLog(JobLauncherCommandLineRunner.class);
+
+	@Autowired(required = false)
+	private JobParametersConverter converter = new DefaultJobParametersConverter();
+
+	@Autowired
+	private JobLauncher jobLauncher;
+
+	@Autowired
+	private Job job;
+
+	public void run(String... args) {
+		logger.info("Running default command line with: " + Arrays.asList(args));
+		launchJobFromProperties(StringUtils.splitArrayElementsIntoProperties(args,
+				"="));
+	}
+
+	protected void launchJobFromProperties(Properties properties) {
+		try {
+			this.jobLauncher.run(this.job,
+					this.converter.getJobParameters(properties));
+		} catch (JobExecutionException e) {
+			throw new IllegalStateException("Could not run job", e);
+		}
+	}
+}