IN PROGRESS - issue BATCH-1246: Add support for a JSON Reader from text files which are JSON formatted

Added line mapper and record separator using Jackson to parse the line up to a map.

spring-batch-infrastructure/src/test/java/org/springframework/batch/item/file/separator/JsonRecordSeparatorPolicyTests.java

@@ -0,0 +1,23 @@
+package org.springframework.batch.item.file.separator;
+
+import static org.junit.Assert.*;
+
+import org.junit.Test;
+
+public class JsonRecordSeparatorPolicyTests {
+	
+	private JsonRecordSeparatorPolicy policy = new JsonRecordSeparatorPolicy();
+
+	@Test
+	public void testIsEndOfRecord() {
+		assertFalse(policy.isEndOfRecord("{\"a\":\"b\""));
+		assertTrue(policy.isEndOfRecord("{\"a\":\"b\"} "));
+	}
+
+	@Test
+	public void testNestedObject() {
+		assertFalse(policy.isEndOfRecord("{\"a\": {\"b\": 2}"));
+		assertTrue(policy.isEndOfRecord("{\"a\": {\"b\": 2}} "));
+	}
+
+}

spring-batch-infrastructure/src/test/java/org/springframework/batch/item/file/transform/JsonLineMapperTests.java

@@ -0,0 +1,34 @@
+package org.springframework.batch.item.file.transform;
+
+import static org.junit.Assert.*;
+
+import java.util.Map;
+
+import org.junit.Test;
+import org.springframework.batch.item.file.FlatFileParseException;
+
+public class JsonLineMapperTests {
+	
+	private JsonLineMapper mapper = new JsonLineMapper();
+
+	@Test
+	public void testMapLine() throws Exception {
+		Map<String, Object> map = mapper.mapLine("{\"foo\": 1}", 1);
+		assertEquals(1, map.get("foo"));
+	}
+
+	@SuppressWarnings("unchecked")
+	@Test
+	public void testMapNested() throws Exception {
+		Map<String, Object> map = mapper.mapLine("{\"foo\": 1, \"bar\" : {\"foo\": 2}}", 1);
+		assertEquals(1, map.get("foo"));
+		assertEquals(2, ((Map<String, Object>) map.get("bar")).get("foo"));
+	}
+
+	@Test(expected=FlatFileParseException.class)
+	public void testMappingError() throws Exception {
+		Map<String, Object> map = mapper.mapLine("{\"foo\": 1", 1);
+		assertEquals(1, map.get("foo"));
+	}
+
+}