XD-1027: Create script-based batch ItemProcessor

spring-batch-core/src/test/java/org/springframework/batch/core/step/item/ScriptItemProcessorTest.java

@@ -0,0 +1,64 @@
+/*
+ * Copyright 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.batch.core.step.item;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.batch.core.Job;
+import org.springframework.batch.core.JobParameters;
+import org.springframework.batch.core.launch.JobLauncher;
+import org.springframework.batch.item.ItemWriter;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+import org.springframework.util.Assert;
+
+import java.util.List;
+
+/**
+ * <p>
+ * Test job utilizing a {@link org.springframework.batch.item.support.ScriptItemProcessor}.
+ * </p>
+ *
+ * @author Chris Schaefer
+ * @since 3.1
+ */
+@ContextConfiguration
+@RunWith(SpringJUnit4ClassRunner.class)
+public class ScriptItemProcessorTest {
+	@Autowired
+	private Job job;
+
+	@Autowired
+	private JobLauncher jobLauncher;
+
+	@Test
+	public void testScriptProcessorJob() throws Exception {
+		jobLauncher.run(job, new JobParameters());
+	}
+
+	public static class TestItemWriter implements ItemWriter<String> {
+		@Override
+		public void write(List<? extends String> items) throws Exception {
+			Assert.notNull(items, "Items cannot be null");
+			Assert.isTrue(!items.isEmpty(), "Items cannot be empty");
+			Assert.isTrue(items.size() == 1, "Items should only contain one entry");
+
+			String item = items.get(0);
+			Assert.isTrue("BLAH".equals(item), "Transformed item to write should have been: BLAH but got: " + item);
+		}
+	}
+}

spring-batch-core/src/test/resources/org/springframework/batch/core/step/item/ScriptItemProcessorTest-context.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<beans:beans xmlns="http://www.springframework.org/schema/batch"
+			 xmlns:beans="http://www.springframework.org/schema/beans"
+			 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+			 xmlns:p="http://www.springframework.org/schema/p"
+			 xsi:schemaLocation="http://www.springframework.org/schema/batch
+			 http://www.springframework.org/schema/batch/spring-batch.xsd
+			 http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
+
+	<job id="scriptProcessorJob">
+		<step id="step1">
+			<tasklet>
+				<chunk reader="reader" processor="processor" writer="writer" commit-interval="1"/>
+			</tasklet>
+		</step>
+	</job>
+
+	<beans:bean id="transactionManager"
+				class="org.springframework.batch.support.transaction.ResourcelessTransactionManager"/>
+
+	<beans:bean id="jobRepository" class="org.springframework.batch.core.repository.support.MapJobRepositoryFactoryBean"
+				p:transactionManager-ref="transactionManager"/>
+
+	<beans:bean id="jobLauncher" class="org.springframework.batch.core.launch.support.SimpleJobLauncher"
+				p:jobRepository-ref="jobRepository"/>
+
+	<beans:bean id="reader" class="org.springframework.batch.item.support.ListItemReader">
+		<beans:constructor-arg>
+			<beans:list>
+				<beans:value>blah</beans:value>
+			</beans:list>
+		</beans:constructor-arg>
+	</beans:bean>
+
+	<beans:bean id="processor" class="org.springframework.batch.item.support.ScriptItemProcessor"
+				p:script="org/springframework/batch/core/step/item/processor-test-simple.js"/>
+
+	<beans:bean id="writer" class="org.springframework.batch.core.step.item.ScriptItemProcessorTest$TestItemWriter"/>
+</beans:beans>

spring-batch-core/src/test/resources/org/springframework/batch/core/step/item/processor-test-simple.js

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+item.toUpperCase();