Use @ConfigurationProperties for Spring Batch

Fixes gh-1249

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

@@ -29,7 +29,6 @@ import org.springframework.batch.core.launch.JobOperator;
 import org.springframework.batch.core.launch.support.SimpleJobOperator;
 import org.springframework.batch.core.repository.JobRepository;
 import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.beans.factory.annotation.Value;
 import org.springframework.boot.ExitCodeGenerator;
 import org.springframework.boot.autoconfigure.AutoConfigureAfter;
 import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
@@ -38,6 +37,7 @@ import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnExpression;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
 import org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaAutoConfiguration;
+import org.springframework.boot.context.properties.EnableConfigurationProperties;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.jdbc.core.JdbcOperations;
@@ -60,10 +60,11 @@ import org.springframework.util.StringUtils;
 @ConditionalOnClass({ JobLauncher.class, DataSource.class, JdbcOperations.class })
 @AutoConfigureAfter(HibernateJpaAutoConfiguration.class)
 @ConditionalOnBean(JobLauncher.class)
+@EnableConfigurationProperties(BatchProperties.class)
 public class BatchAutoConfiguration {
 
-	@Value("${spring.batch.job.names:}")
-	private String jobNames;
+	@Autowired
+	private BatchProperties properties;
 
 	@Autowired(required = false)
 	private JobParametersConverter jobParametersConverter;
@@ -82,8 +83,9 @@ public class BatchAutoConfiguration {
 			JobLauncher jobLauncher, JobExplorer jobExplorer) {
 		JobLauncherCommandLineRunner runner = new JobLauncherCommandLineRunner(
 				jobLauncher, jobExplorer);
-		if (StringUtils.hasText(this.jobNames)) {
-			runner.setJobNames(this.jobNames);
+		String jobNames = this.properties.getJob().getNames();
+		if (StringUtils.hasText(jobNames)) {
+			runner.setJobNames(jobNames);
 		}
 		return runner;
 	}

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

@@ -21,10 +21,6 @@ import javax.sql.DataSource;
 
 import org.springframework.batch.support.DatabaseType;
 import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.beans.factory.annotation.Value;
-import org.springframework.boot.bind.RelaxedPropertyResolver;
-import org.springframework.context.EnvironmentAware;
-import org.springframework.core.env.Environment;
 import org.springframework.core.io.ResourceLoader;
 import org.springframework.jdbc.datasource.init.DatabasePopulatorUtils;
 import org.springframework.jdbc.datasource.init.ResourceDatabasePopulator;
@@ -37,10 +33,11 @@ import org.springframework.stereotype.Component;
  * @author Dave Syer
  */
 @Component
-public class BatchDatabaseInitializer implements EnvironmentAware {
+public class BatchDatabaseInitializer {
 
-	private static final String DEFAULT_SCHEMA_LOCATION = "classpath:org/springframework/"
-			+ "batch/core/schema-@@platform@@.sql";
+
+	@Autowired
+	private BatchProperties properties;
 
 	@Autowired
 	private DataSource dataSource;
@@ -48,19 +45,9 @@ public class BatchDatabaseInitializer implements EnvironmentAware {
 	@Autowired
 	private ResourceLoader resourceLoader;
 
-	@Value("${spring.batch.initializer.enabled:true}")
-	private boolean enabled = true;
-
-	private RelaxedPropertyResolver environment;
-
-	@Override
-	public void setEnvironment(Environment environment) {
-		this.environment = new RelaxedPropertyResolver(environment, "spring.batch.");
-	}
-
 	@PostConstruct
 	protected void initialize() {
-		if (this.enabled) {
+		if (this.properties.getInitializer().isEnabled()) {
 			String platform = getDatabaseType();
 			if ("hsql".equals(platform)) {
 				platform = "hsqldb";
@@ -72,8 +59,7 @@ public class BatchDatabaseInitializer implements EnvironmentAware {
 				platform = "oracle10g";
 			}
 			ResourceDatabasePopulator populator = new ResourceDatabasePopulator();
-			String schemaLocation = this.environment.getProperty("schema",
-					DEFAULT_SCHEMA_LOCATION);
+			String schemaLocation = this.properties.getSchema();
 			schemaLocation = schemaLocation.replace("@@platform@@", platform);
 			populator.addScript(this.resourceLoader.getResource(schemaLocation));
 			populator.setContinueOnError(true);

spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/batch/BatchProperties.java

@@ -0,0 +1,77 @@
+/*
+ * Copyright 2012-2014 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.boot.autoconfigure.batch;
+
+import org.springframework.boot.context.properties.ConfigurationProperties;
+
+/**
+ * Configuration properties for Spring Batch.
+ *
+ * @author Stephane Nicoll
+ * @since 1.2.0
+ */
+@ConfigurationProperties("spring.batch")
+public class BatchProperties {
+
+	private static final String DEFAULT_SCHEMA_LOCATION = "classpath:org/springframework/"
+			+ "batch/core/schema-@@platform@@.sql";
+
+
+	private String schema = DEFAULT_SCHEMA_LOCATION;
+
+	private final Initializer initializer = new Initializer();
+
+	private final Job job = new Job();
+
+	public String getSchema() {
+		return schema;
+	}
+
+	public void setSchema(String schema) {
+		this.schema = schema;
+	}
+
+	public Initializer getInitializer() {
+		return initializer;
+	}
+
+	public Job getJob() {
+		return job;
+	}
+
+	public static class Initializer {
+
+		private boolean enabled = true;
+
+		public boolean isEnabled() {
+			return enabled;
+		}
+
+		public void setEnabled(boolean enabled) {
+			this.enabled = enabled;
+		}
+	}
+
+	public static class Job {
+
+		private String names = "";
+
+		public String getNames() {
+			return names;
+		}
+	}
+}