IN PROGRESS - issue BATCH-792: Automatically detect database type in JobRepositoryFactoryBean

http://jira.springframework.org/browse/BATCH-792

JobRepositoryFactoryBean now detects the database type by the meta data.  There is also now an enum representing the DatabaseType.

spring-batch-infrastructure/src/test/java/org/springframework/batch/item/database/support/SimpleDelegatingPagingQueryProviderTests.java

@@ -8,7 +8,6 @@ import org.junit.Test;
 import org.junit.Assert;
 import org.junit.Before;
 import org.easymock.EasyMock;
-import org.springframework.dao.InvalidDataAccessResourceUsageException;
 
 import javax.sql.DataSource;
 import java.sql.Connection;
@@ -214,7 +213,7 @@ public class SimpleDelegatingPagingQueryProviderTests {
 		try {
 			pagingQueryProvider.init(ds);
 			fail("Expected an InvalidDataAccessResourceUsageException since the MyDB database is not supported");
-		} catch (InvalidDataAccessResourceUsageException e) {
+		} catch (IllegalArgumentException e) {
 			// expected
 		}
 

spring-batch-infrastructure/src/test/java/org/springframework/batch/support/DatabaseTypeTests.java

@@ -0,0 +1,54 @@
+package org.springframework.batch.support;
+
+import static org.springframework.batch.support.DatabaseType.*;
+import static org.junit.Assert.*;
+import static org.easymock.EasyMock.*;
+
+import java.sql.Connection;
+import java.sql.DatabaseMetaData;
+
+import javax.sql.DataSource;
+
+import org.junit.Test;
+
+/**
+ * 
+ * @author Lucas Ward
+ *
+ */
+public class DatabaseTypeTests {
+
+	@Test
+	public void testFromProductName(){
+		assertEquals(DERBY, fromProductName("Apache Derby"));
+		assertEquals(DB2, fromProductName("DB2"));
+		assertEquals(HSQL, fromProductName("HSQL Database Engine"));
+		assertEquals(SQLSERVER, fromProductName("Microsoft SQL Server"));
+		assertEquals(MYSQL, fromProductName("MySQL"));
+		assertEquals(ORACLE, fromProductName("Oracle"));
+		assertEquals(POSTGRES, fromProductName("PostgreSQL"));
+		assertEquals(SYBASE, fromProductName("Sybase"));
+	}
+	
+	@Test(expected=IllegalArgumentException.class)
+	public void testInvalidProductName(){
+		
+		fromProductName("bad product name");
+	}
+	
+	@Test
+	public void testFromMetaData() throws Exception{
+		
+		DatabaseMetaData dmd = createMock(DatabaseMetaData.class);
+		DataSource ds = createMock(DataSource.class);
+		Connection con = createMock(Connection.class);
+		expect(ds.getConnection()).andReturn(con);
+		expect(con.getMetaData()).andReturn(dmd);
+		expect(dmd.getDatabaseProductName()).andReturn("Oracle");
+		replay(dmd,ds,con);
+		
+		assertEquals(ORACLE, DatabaseType.fromMetaData(ds));
+		
+		verify(dmd,ds,con);
+	}
+}