/*
 * JBoss, Home of Professional Open Source.
 * See the COPYRIGHT.txt file distributed with this work for information
 * regarding copyright ownership.  Some portions may be licensed
 * to Red Hat, Inc. under one or more contributor license agreements.
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 * 
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301 USA.
 */

package org.teiid.runtime;

import static org.junit.Assert.*;

import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.StringReader;
import java.net.InetSocketAddress;
import java.sql.*;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Properties;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

import javax.resource.spi.XATerminator;
import javax.transaction.*;

import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.mockito.Mockito;
import org.postgresql.Driver;
import org.teiid.CommandContext;
import org.teiid.PreParser;
import org.teiid.adminapi.Model.Type;
import org.teiid.adminapi.impl.ModelMetaData;
import org.teiid.common.buffer.BufferManager;
import org.teiid.common.buffer.impl.BufferFrontedFileStoreCache;
import org.teiid.common.buffer.impl.FileStorageManager;
import org.teiid.common.buffer.impl.SplittableStorageManager;
import org.teiid.common.queue.FakeWorkManager;
import org.teiid.core.TeiidRuntimeException;
import org.teiid.core.types.DataTypeManager;
import org.teiid.core.types.InputStreamFactory;
import org.teiid.core.types.SQLXMLImpl;
import org.teiid.core.util.ObjectConverterUtil;
import org.teiid.core.util.SimpleMock;
import org.teiid.core.util.UnitTestUtil;
import org.teiid.deployers.VirtualDatabaseException;
import org.teiid.jdbc.SQLStates;
import org.teiid.jdbc.TeiidDriver;
import org.teiid.jdbc.TeiidSQLException;
import org.teiid.language.Command;
import org.teiid.language.Literal;
import org.teiid.language.QueryExpression;
import org.teiid.language.visitor.CollectorVisitor;
import org.teiid.metadata.Column;
import org.teiid.metadata.MetadataException;
import org.teiid.metadata.MetadataFactory;
import org.teiid.metadata.RuntimeMetadata;
import org.teiid.metadata.Table;
import org.teiid.query.sql.symbol.Reference;
import org.teiid.runtime.EmbeddedServer.ConnectionFactoryProvider;
import org.teiid.translator.DataNotAvailableException;
import org.teiid.translator.ExecutionContext;
import org.teiid.translator.ExecutionFactory;
import org.teiid.translator.ResultSetExecution;
import org.teiid.translator.Translator;
import org.teiid.translator.TranslatorBatchException;
import org.teiid.translator.TranslatorException;
import org.teiid.translator.TypeFacility;
import org.teiid.translator.UpdateExecution;
import org.teiid.transport.SSLConfiguration;
import org.teiid.transport.SocketConfiguration;
import org.teiid.transport.WireProtocol;

@SuppressWarnings("nls")
public class TestEmbeddedServer {
    @Translator (name="y")
	public static class FakeTranslator extends
			ExecutionFactory<AtomicInteger, Object> {
		
		private boolean batch;
		
        public FakeTranslator() {
            this.batch = false;
        }
        
		public FakeTranslator(boolean batch) {
			this.batch = batch;
		}
		
		@Override
		public Object getConnection(AtomicInteger factory)
				throws TranslatorException {
			return factory.incrementAndGet();
		}

		@Override
		public void closeConnection(Object connection, AtomicInteger factory) {
			
		}
		
		@Override
		public boolean supportsBulkUpdate() {
			return true;
		}

		@Override
		public void getMetadata(MetadataFactory metadataFactory, Object conn)
				throws TranslatorException {
			assertEquals(conn, Integer.valueOf(1));
			Table t = metadataFactory.addTable("my-table");
			t.setSupportsUpdate(true);
			Column c = metadataFactory.addColumn("my-column", TypeFacility.RUNTIME_NAMES.STRING, t);
			c.setUpdatable(true);
		}

		@Override
		public ResultSetExecution createResultSetExecution(
				QueryExpression command, ExecutionContext executionContext,
				RuntimeMetadata metadata, Object connection)
				throws TranslatorException {
			ResultSetExecution rse = new ResultSetExecution() {
				
				@Override
				public void execute() throws TranslatorException {
					
				}
				
				@Override
				public void close() {
					
				}
				
				@Override
				public void cancel() throws TranslatorException {
					
				}
				
				@Override
				public List<?> next() throws TranslatorException, DataNotAvailableException {
					return null;
				}
			};
			return rse;
		}

		@Override
		public UpdateExecution createUpdateExecution(Command command,
				ExecutionContext executionContext,
				RuntimeMetadata metadata, Object connection)
				throws TranslatorException {
			UpdateExecution ue = new UpdateExecution() {
				
				@Override
				public void execute() throws TranslatorException {
					
				}
				
				@Override
				public void close() {
					
				}
				
				@Override
				public void cancel() throws TranslatorException {
					
				}
				
				@Override
				public int[] getUpdateCounts() throws DataNotAvailableException,
						TranslatorException {
					if (!batch) {
						return new int[] {2};
					}
					return new int[] {1, 1, -1, 1, 1, 1, -1, 1, 1, 1, -1, 1, 1, 1, -1, 1};
				}
			};
			return ue;
		}

        @Override
        public boolean isSourceRequiredForMetadata() {
            return false;
        }
	}

	public static final class MockTransactionManager implements TransactionManager {
		ThreadLocal<Transaction> txns = new ThreadLocal<Transaction>();
		List<Transaction> txnHistory = new ArrayList<Transaction>();

		@Override
		public Transaction suspend() throws SystemException {
			Transaction result = txns.get();
			txns.remove();
			return result;
		}

		@Override
		public void setTransactionTimeout(int seconds) throws SystemException {
		}

		@Override
		public void setRollbackOnly() throws IllegalStateException, SystemException {
			Transaction result = txns.get();
			if (result == null) {
				throw new IllegalStateException();
			}
			result.setRollbackOnly();
		}

		@Override
		public void rollback() throws IllegalStateException, SecurityException,
				SystemException {
			Transaction t = checkNull(false);
			txns.remove();
			t.rollback();
		}

		@Override
		public void resume(Transaction tobj) throws InvalidTransactionException,
				IllegalStateException, SystemException {
			checkNull(true);
			txns.set(tobj);
		}

		private Transaction checkNull(boolean isNull) {
			Transaction t = txns.get();
			if ((!isNull && t == null) || (isNull && t != null)) {
				throw new IllegalStateException();
			}
			return t;
		}

		@Override
		public Transaction getTransaction() throws SystemException {
			return txns.get();
		}

		@Override
		public int getStatus() throws SystemException {
			Transaction t = txns.get();
			if (t == null) {
				return Status.STATUS_NO_TRANSACTION;
			}
			return t.getStatus();
		}

		@Override
		public void commit() throws RollbackException, HeuristicMixedException,
				HeuristicRollbackException, SecurityException,
				IllegalStateException, SystemException {
			Transaction t = checkNull(false);
			txns.remove();
			t.commit();
		}

		@Override
		public void begin() throws NotSupportedException, SystemException {
			checkNull(true);
			Transaction t = Mockito.mock(Transaction.class);
			txnHistory.add(t);
			txns.set(t);
		}

		public void reset() {
			txnHistory.clear();
			txns = new ThreadLocal<Transaction>();
		}
	}

	EmbeddedServer es;
	
	@Before public void setup() {
		es = new EmbeddedServer();
	}
	
	@After public void teardown() {
		if (es != null) {
			es.stop();
		}
	}
	
	@Test public void testDeploy() throws Exception {
		EmbeddedConfiguration ec = new EmbeddedConfiguration();
		ec.setUseDisk(false);
		es.start(ec);
		
		es.addTranslator("y", new FakeTranslator(false));
		final AtomicInteger counter = new AtomicInteger();
		ConnectionFactoryProvider<AtomicInteger> cfp = new EmbeddedServer.SimpleConnectionFactoryProvider<AtomicInteger>(counter);
		
		es.addConnectionFactoryProvider("z", cfp);
		
		ModelMetaData mmd = new ModelMetaData();
		mmd.setName("my-schema");
		mmd.addSourceMapping("x", "y", "z");

		ModelMetaData mmd1 = new ModelMetaData();
		mmd1.setName("virt");
		mmd1.setModelType(Type.VIRTUAL);
		mmd1.setSchemaSourceType("ddl");
		mmd1.setSchemaText("create view \"my-view\" OPTIONS (UPDATABLE 'true') as select * from \"my-table\"");

		es.deployVDB("test", mmd, mmd1);
		
		TeiidDriver td = es.getDriver();
		Connection c = td.connect("jdbc:teiid:test", null);
		Statement s = c.createStatement();
		ResultSet rs = s.executeQuery("select * from \"my-view\"");
		assertFalse(rs.next());
		assertEquals("my-column", rs.getMetaData().getColumnLabel(1));
		
		s.execute("update \"my-view\" set \"my-column\" = 'a'");
		assertEquals(2, s.getUpdateCount());
		
		es.deployVDB("empty");
		c = es.getDriver().connect("jdbc:teiid:empty", null);
		s = c.createStatement();
		s.execute("select * from tables");
		
		assertNotNull(es.getSchemaDdl("empty", "SYS"));
		assertNull(es.getSchemaDdl("empty", "xxx"));
	}
	
	@Test public void testBatchedUpdate() throws Exception {
		EmbeddedConfiguration ec = new EmbeddedConfiguration();
		
		ec.setUseDisk(false);
		es.bufferService.setProcessorBatchSize(1);
		es.start(ec);
		
		es.addTranslator("y", new FakeTranslator(true));
		final AtomicInteger counter = new AtomicInteger();
		ConnectionFactoryProvider<AtomicInteger> cfp = new EmbeddedServer.SimpleConnectionFactoryProvider<AtomicInteger>(counter);
		
		es.addConnectionFactoryProvider("z", cfp);
		
		ModelMetaData mmd = new ModelMetaData();
		mmd.setName("my-schema");
		mmd.addSourceMapping("x", "y", "z");
		es.deployVDB("test", mmd);
		
		Connection c = es.getDriver().connect("jdbc:teiid:test", null);
		PreparedStatement ps = c.prepareStatement("insert into \"my-table\" values (?)");
		for (int i = 0; i < 16; i++) {
		ps.setString(1, "a");
		ps.addBatch();
		}
		int[] result = ps.executeBatch();
		assertArrayEquals(new int[] {1, 1, -1, 1, 1, 1, -1, 1, 1, 1, -1, 1, 1, 1, -1, 1}, result);
	}
	
	@Test(expected=VirtualDatabaseException.class) 
	public void testInvalidName() throws Exception {
		es.start(new EmbeddedConfiguration());
		ModelMetaData mmd1 = new ModelMetaData();
		mmd1.setName("virt.1");
		mmd1.setModelType(Type.VIRTUAL);
		mmd1.setSchemaSourceType("ddl");
		mmd1.setSchemaText("create view \"my-view\" as select 1");
		es.deployVDB("x", mmd1);
	}
	
	@Test public void testDeployZip() throws Exception {
		es.start(new EmbeddedConfiguration());
		
		File f = UnitTestUtil.getTestScratchFile("some.vdb");
        ZipOutputStream out = new ZipOutputStream(new FileOutputStream(f));
        out.putNextEntry(new ZipEntry("v1.ddl")); 
        out.write("CREATE VIEW helloworld as SELECT 'HELLO WORLD';".getBytes("UTF-8"));
        out.putNextEntry(new ZipEntry("META-INF/vdb.xml"));
        out.write("<vdb name=\"test\" version=\"1\"><model name=\"test\" type=\"VIRTUAL\"><metadata type=\"DDL-FILE\">/v1.ddl</metadata></model></vdb>".getBytes("UTF-8"));
        out.close();
		
		es.deployVDBZip(f.toURI().toURL());
		ResultSet rs = es.getDriver().connect("jdbc:teiid:test", null).createStatement().executeQuery("select * from helloworld");
		rs.next();
		assertEquals("HELLO WORLD", rs.getString(1));
	}
	    
    @Test public void testDDLVDBImport() throws Exception {
        es.start(new EmbeddedConfiguration());
        
        String ddl1 = "CREATE DATABASE x VERSION '1';"
                + "USE DATABASE x VERSION '1';"
                + "CREATE VIRTUAL SCHEMA test2;"
                + "SET SCHEMA test2;"
                + "CREATE VIEW x as select 1;";
        
        String ddl2 = "CREATE DATABASE test VERSION '1';"
                + "USE DATABASE test VERSION '1';"
                + "IMPORT DATABASE x VERSION '1';";
        
        es.deployVDB(new ByteArrayInputStream(ddl1.getBytes("UTF-8")), true);
        es.deployVDB(new ByteArrayInputStream(ddl2.getBytes("UTF-8")), true);
    }
    
    @Test(expected=MetadataException.class) public void testAlterImported() throws Exception {
        es.start(new EmbeddedConfiguration());
        
        String ddl1 = "CREATE DATABASE x VERSION '1';"
                + "USE DATABASE x VERSION '1';"
                + "CREATE VIRTUAL SCHEMA test2;"
                + "SET SCHEMA test2;"
                + "CREATE VIEW x as select 1;";
        
        String ddl2 = "CREATE DATABASE test VERSION '1';"
                + "USE DATABASE test VERSION '1';"
                + "IMPORT DATABASE x VERSION '1';"
                + "set schema test2;"
                + "DROP VIEW x;";
        
        es.deployVDB(new ByteArrayInputStream(ddl1.getBytes("UTF-8")), true);
        es.deployVDB(new ByteArrayInputStream(ddl2.getBytes("UTF-8")), true);
    }
	
	@Test public void testDeployDesignerZip() throws Exception {
		es.start(new EmbeddedConfiguration());
		es.deployVDBZip(UnitTestUtil.getTestDataFile("matviews.vdb").toURI().toURL());
		ResultSet rs = es.getDriver().connect("jdbc:teiid:matviews", null).createStatement().executeQuery("select count(*) from tables where schemaname='test'");
		rs.next();
		assertEquals(4, rs.getInt(1));
	}
	
	@Test public void testXMLDeploy() throws Exception {
		es.start(new EmbeddedConfiguration());
		es.deployVDB(new ByteArrayInputStream("<vdb name=\"test\" version=\"1\"><model name=\"test\" type=\"VIRTUAL\"><metadata type=\"DDL\"><![CDATA[CREATE VIEW helloworld as SELECT 'HELLO WORLD';]]> </metadata></model></vdb>".getBytes()));
		ResultSet rs =es.getDriver().connect("jdbc:teiid:test", null).createStatement().executeQuery("select * from helloworld");
		rs.next();
		assertEquals("HELLO WORLD", rs.getString(1));
	}
	
	@Test public void testXMLDeployWithVDBImport() throws Exception {
		es.start(new EmbeddedConfiguration());
		es.deployVDB(new ByteArrayInputStream("<vdb name=\"test\" version=\"1\"><model name=\"test\" type=\"VIRTUAL\"><metadata type=\"DDL\"><![CDATA[CREATE VIEW helloworld as SELECT 'HELLO WORLD';]]> </metadata></model></vdb>".getBytes()));
		es.deployVDB(new ByteArrayInputStream("<vdb name=\"importer\" version=\"1\"><import-vdb name=\"test\" version=\"1\"/></vdb>".getBytes()));
		ResultSet rs =es.getDriver().connect("jdbc:teiid:importer", null).createStatement().executeQuery("select * from helloworld");
		rs.next();
		assertEquals("HELLO WORLD", rs.getString(1));
		es.deployVDB(new ByteArrayInputStream("<vdb name=\"importer1\" version=\"1\"><import-vdb name=\"importer\" version=\"1\"/></vdb>".getBytes()));
		rs =es.getDriver().connect("jdbc:teiid:importer1", null).createStatement().executeQuery("select * from helloworld");
		rs.next();
		assertEquals("HELLO WORLD", rs.getString(1));
	}
	
	@Test 
	public void testRemoteJDBCTrasport() throws Exception {
		SocketConfiguration s = new SocketConfiguration();
		InetSocketAddress addr = new InetSocketAddress(0);
		s.setBindAddress(addr.getHostName());
		s.setPortNumber(addr.getPort());
		s.setProtocol(WireProtocol.teiid);
		EmbeddedConfiguration config = new EmbeddedConfiguration();
		config.addTransport(s);
		es.start(config);
		es.deployVDB(new ByteArrayInputStream("<vdb name=\"test\" version=\"1\"><model name=\"test\" type=\"VIRTUAL\"><metadata type=\"DDL\"><![CDATA[CREATE VIEW helloworld as SELECT 'HELLO WORLD';]]> </metadata></model></vdb>".getBytes()));
		Connection conn = null;
		try {
			TeiidDriver driver = new TeiidDriver();
			conn = driver.connect("jdbc:teiid:test@mm://"+addr.getHostName()+":"+es.transports.get(0).getPort(), null);
			conn.createStatement().execute("set showplan on"); //trigger alternative serialization for byte count
			ResultSet rs = conn.createStatement().executeQuery("select * from helloworld");
			rs.next();
			assertEquals("HELLO WORLD", rs.getString(1));
		} finally {
			if (conn != null) {
				conn.close();
			}
		}
	}
	
	@Test(expected=TeiidRuntimeException.class)
	public void testRemoteTrasportSSLFail() throws Exception {
		SocketConfiguration s = new SocketConfiguration();
		InetSocketAddress addr = new InetSocketAddress(0);
		s.setBindAddress(addr.getHostName());
		s.setPortNumber(addr.getPort());
		s.setProtocol(WireProtocol.teiid);
		SSLConfiguration sslConfiguration = new SSLConfiguration();
		sslConfiguration.setSslProtocol("x");
		sslConfiguration.setMode("enabled");
		s.setSSLConfiguration(sslConfiguration);
		EmbeddedConfiguration config = new EmbeddedConfiguration();
		config.addTransport(s);
		es.start(config);
	}	
	
	@Test public void testRemoteODBCTrasport() throws Exception {
		SocketConfiguration s = new SocketConfiguration();
		InetSocketAddress addr = new InetSocketAddress(0);
		s.setBindAddress(addr.getHostName());
		s.setPortNumber(addr.getPort());
		s.setProtocol(WireProtocol.pg);
		EmbeddedConfiguration config = new EmbeddedConfiguration();
		config.addTransport(s);
		es.start(config);
		es.deployVDB(new ByteArrayInputStream("<vdb name=\"test\" version=\"1\"><model name=\"test\" type=\"VIRTUAL\"><metadata type=\"DDL\"><![CDATA[CREATE VIEW helloworld as SELECT 'HELLO WORLD';]]> </metadata></model></vdb>".getBytes()));
		Connection conn = null;
		try {
			Driver d = new Driver();
			Properties p = new Properties();
			p.setProperty("user", "testuser");
			p.setProperty("password", "testpassword");
			
			conn = d.connect("jdbc:postgresql://"+addr.getHostName()+":"+es.transports.get(0).getPort()+"/test", p);
			ResultSet rs = conn.createStatement().executeQuery("select * from helloworld");
			rs.next();
			assertEquals("HELLO WORLD", rs.getString(1));
		} finally {
			if (conn != null) {
				conn.close();
			}
		}
	}	
	
	@Test(expected=VirtualDatabaseException.class) public void testXMLDeployFails() throws Exception {
		es.start(new EmbeddedConfiguration());
		es.deployVDB(new ByteArrayInputStream("<vdb name=\"test\" version=\"1\"><model name=\"test\" type=\"VIRTUAL\"><metadata type=\"DDL\"><![CDATA[CREATE VIEW helloworld as SELECT 'HELLO WORLD';]]> </metadata></model><translator name=\"foo\" type=\"h2\"></translator></vdb>".getBytes()));
	}
	
	/**
	 * Ensures schema validation is performed
	 * @throws Exception
	 */
	@Test(expected=VirtualDatabaseException.class) public void testXMLDeployFails1() throws Exception {
		es.start(new EmbeddedConfiguration());
		es.deployVDB(new ByteArrayInputStream("<vdb name=\"test\" version=\"1\"><model name=\"test\"><source/></model><translator name=\"foo\" type=\"h2\"></translator></vdb>".getBytes()));
	}
	
	@Test(expected=VirtualDatabaseException.class) public void testDeploymentError() throws Exception {
		EmbeddedConfiguration ec = new EmbeddedConfiguration();
		ec.setUseDisk(false);
		es.start(ec);
		
		ModelMetaData mmd1 = new ModelMetaData();
		mmd1.setName("virt");
		mmd1.setModelType(Type.VIRTUAL);
		mmd1.setSchemaSourceType("ddl");
		mmd1.setSchemaText("create view \"my-view\" OPTIONS (UPDATABLE 'true') as select * from \"my-table\"");

		es.deployVDB("test", mmd1);
	}
	
	@Test public void testValidationOrder() throws Exception {
		EmbeddedConfiguration ec = new EmbeddedConfiguration();
		ec.setUseDisk(false);
		es.start(ec);
		
		ModelMetaData mmd1 = new ModelMetaData();
		mmd1.setName("b");
		mmd1.setModelType(Type.VIRTUAL);
		mmd1.setSchemaSourceType("ddl");
		mmd1.setSchemaText("create view v as select 1");

		ModelMetaData mmd2 = new ModelMetaData();
		mmd2.setName("a");
		mmd2.setModelType(Type.VIRTUAL);
		mmd2.setSchemaSourceType("ddl");
		mmd2.setSchemaText("create view v1 as select * from v");

		//We need mmd1 to validate before mmd2, reversing the order will result in an exception
		es.deployVDB("test", mmd1, mmd2);
		
		try {
			es.deployVDB("test2", mmd2, mmd1);
			fail();
		} catch (VirtualDatabaseException e) {
			
		}
	}
	
	@Test public void testTransactions() throws Exception {
		EmbeddedConfiguration ec = new EmbeddedConfiguration();
		MockTransactionManager tm = new MockTransactionManager();
		ec.setTransactionManager(tm);
		ec.setUseDisk(false);
		es.start(ec);
		
		ModelMetaData mmd1 = new ModelMetaData();
		mmd1.setName("b");
		mmd1.setModelType(Type.VIRTUAL);
		mmd1.setSchemaSourceType("ddl");
		mmd1.setSchemaText("create view v as select 1; " +
				"create virtual procedure proc () options (updatecount 2) as begin select * from v; end; " +
				"create virtual procedure proc0 () as begin atomic select * from v; end; " +
				"create virtual procedure proc1 () as begin atomic insert into #temp values (1); insert into #temp values (1); end; " +
				"create virtual procedure proc2 (x integer) as begin atomic insert into #temp values (1); insert into #temp values (1); select 1; begin select 1/x; end exception e end; " +
				"create virtual procedure proc3 (x integer) as begin begin atomic call proc (); select 1; end create local temporary table x (y string); begin atomic call proc (); select 1; end end;");

		es.deployVDB("test", mmd1);
		
		TeiidDriver td = es.getDriver();
		Connection c = td.connect("jdbc:teiid:test", null);
		//local txn
		c.setAutoCommit(false);
		Statement s = c.createStatement();
		s.execute("select 1");
		c.setAutoCommit(true);
		assertEquals(1, tm.txnHistory.size());
		Transaction txn = tm.txnHistory.remove(0);
		Mockito.verify(txn).commit();
		
		//should be an auto-commit txn (could also force with autoCommitTxn=true)
		s.execute("call proc ()");
		
		assertEquals(1, tm.txnHistory.size());
		txn = tm.txnHistory.remove(0);
		Mockito.verify(txn).commit();
		
		//no txn needed
        s.execute("call proc0()");
	        
        assertEquals(0, tm.txnHistory.size());
		
		//block txn
		s.execute("call proc1()");
		
		assertEquals(1, tm.txnHistory.size());
		txn = tm.txnHistory.remove(0);
		Mockito.verify(txn).commit();
		
		s.execute("set autoCommitTxn on");
		s.execute("set noexec on");
		s.execute("select 1");
		assertFalse(s.getResultSet().next());
		
		s.execute("set autoCommitTxn off");
		s.execute("set noexec off");
		s.execute("call proc2(0)");
		//verify that the block txn was committed because the exception was caught
		assertEquals(1, tm.txnHistory.size());
		txn = tm.txnHistory.remove(0);
		Mockito.verify(txn).rollback();

		//test detection
		tm.txnHistory.clear();
		tm.begin();
		try {
			c.setAutoCommit(false);
			s.execute("select 1"); //needed since we lazily start the transaction
			fail("should fail since we aren't allowing a nested transaction");
		} catch (TeiidSQLException e) {
		}
		txn = tm.txnHistory.remove(0);
		Mockito.verify(txn, Mockito.times(0)).commit();
		
		tm.commit();
		c.setAutoCommit(true);
		
		tm.txnHistory.clear();
		//ensure that we properly reset the txn context
		s.execute("call proc3(0)");
		assertEquals(2, tm.txnHistory.size());
		txn = tm.txnHistory.remove(0);
		Mockito.verify(txn, Mockito.times(0)).registerSynchronization((Synchronization) Mockito.any());
	}
	
	@Test public void testMultiSourcePreparedDynamicUpdate() throws Exception {
		EmbeddedConfiguration ec = new EmbeddedConfiguration();
		MockTransactionManager tm = new MockTransactionManager();
		ec.setTransactionManager(tm);
		ec.setUseDisk(false);
		es.start(ec);
		
		es.addTranslator("t", new ExecutionFactory<Void, Void>());
		
		ModelMetaData mmd1 = new ModelMetaData();
		mmd1.setName("b");
		mmd1.setSchemaSourceType("ddl");
		mmd1.setSchemaText("create view v (i integer) OPTIONS (UPDATABLE true) as select 1; " +
				"create trigger on v instead of update as for each row begin atomic " +
				"IF (CHANGING.i)\n" +
                "EXECUTE IMMEDIATE 'select \"new\".i'; " +
				"end; ");
		mmd1.setSupportsMultiSourceBindings(true);
		mmd1.addSourceMapping("x", "t", null);
		mmd1.addSourceMapping("y", "t", null);
		
		es.deployVDB("vdb", mmd1);
		
		Connection c = es.getDriver().connect("jdbc:teiid:vdb", null);
		PreparedStatement ps = c.prepareStatement("update v set i = ? where i = ?");
		ps.setInt(1, 2);
		ps.setInt(2, 1);
		assertEquals(1, ps.executeUpdate());
		ps.setInt(1, 3);
		ps.setInt(2, 1);
		assertEquals(1, ps.executeUpdate());
	}
	
	@Test public void testGeneratedKeysVirtual() throws Exception {
		EmbeddedConfiguration ec = new EmbeddedConfiguration();
		MockTransactionManager tm = new MockTransactionManager();
		ec.setTransactionManager(tm);
		ec.setUseDisk(false);
		es.start(ec);
		
		es.addTranslator("t", new ExecutionFactory<Void, Void>());
		
		ModelMetaData mmd1 = new ModelMetaData();
		mmd1.setName("b");
		mmd1.setModelType(Type.VIRTUAL);
		mmd1.addSourceMetadata("ddl", "create view v (i integer, k integer auto_increment) OPTIONS (UPDATABLE true) as select 1, 2; " +
				"create trigger on v instead of insert as for each row begin atomic " +
				"\ncreate local temporary table x (y serial, z integer, primary key (y));"
				+ "\ninsert into x (z) values (1);" +
				"end; ");
		
		es.deployVDB("vdb", mmd1);
		
		Connection c = es.getDriver().connect("jdbc:teiid:vdb", null);
		PreparedStatement ps = c.prepareStatement("insert into v (i) values (1)", Statement.RETURN_GENERATED_KEYS);
		assertEquals(1, ps.executeUpdate());
		ResultSet rs = ps.getGeneratedKeys();
		assertFalse(rs.next());
	}
	
	@Test public void testGeneratedKeysTemp() throws Exception {
		EmbeddedConfiguration ec = new EmbeddedConfiguration();
		MockTransactionManager tm = new MockTransactionManager();
		ec.setTransactionManager(tm);
		ec.setUseDisk(false);
		es.start(ec);
		
		ModelMetaData mmd1 = new ModelMetaData();
		mmd1.setName("b");
		mmd1.setModelType(Type.VIRTUAL);
		mmd1.addSourceMetadata("ddl", "create view v as select 1");
		
		es.deployVDB("vdb", mmd1);
		
		Connection c = es.getDriver().connect("jdbc:teiid:vdb", null);
		Statement s = c.createStatement();
		s.execute("create temporary table t (x serial, y string, primary key (x))");
		PreparedStatement ps = c.prepareStatement("insert into t (y) values ('a')", Statement.RETURN_GENERATED_KEYS);
		assertFalse(ps.execute());
		assertEquals(1, ps.getUpdateCount());
		ResultSet rs = ps.getGeneratedKeys();
		assertTrue(rs.next());
		assertEquals(1, rs.getInt(1));
		//should just be the default, rather than an exception
		assertEquals(11, rs.getMetaData().getColumnDisplaySize(1));
	}
	
	@Test public void testMultiSourceMetadata() throws Exception {
		EmbeddedConfiguration ec = new EmbeddedConfiguration();
		MockTransactionManager tm = new MockTransactionManager();
		ec.setTransactionManager(tm);
		ec.setUseDisk(false);
		es.start(ec);
		
		es.addTranslator("t", new ExecutionFactory<Void, Void>());
		
		ModelMetaData mmd1 = new ModelMetaData();
		mmd1.setName("b");
		mmd1.setSchemaSourceType("ddl");
		mmd1.setSchemaText("create foreign table t (x string)");
		mmd1.setSupportsMultiSourceBindings(true);
		mmd1.addSourceMapping("x", "t", null);
		mmd1.addSourceMapping("y", "t", null);
		
		es.deployVDB("vdb", mmd1);
		
		Connection c = es.getDriver().connect("jdbc:teiid:vdb", null);
		PreparedStatement ps = c.prepareStatement("select * from t");
		ResultSetMetaData metadata = ps.getMetaData();
		assertEquals(1, metadata.getColumnCount());
		
		mmd1.addProperty("multisource.addColumn", Boolean.TRUE.toString());
		
		es.undeployVDB("vdb");
		es.deployVDB("vdb", mmd1);
		
		c = es.getDriver().connect("jdbc:teiid:vdb", null);
		ps = c.prepareStatement("select * from t");
		metadata = ps.getMetaData();
		assertEquals(2, metadata.getColumnCount());
		
		mmd1.addProperty("multisource.columnName", "y");
		
		es.undeployVDB("vdb");
		es.deployVDB("vdb", mmd1);
		
		c = es.getDriver().connect("jdbc:teiid:vdb", null);
		ps = c.prepareStatement("select * from t");
		metadata = ps.getMetaData();
		assertEquals(2, metadata.getColumnCount());
		assertEquals("y", metadata.getColumnName(2));
	}
	
	/**
	 * Check that we'll consult each source
	 * @throws Exception
	 */
	@Test public void testMultiSourceMetadataMissingSource() throws Exception {
		EmbeddedConfiguration ec = new EmbeddedConfiguration();
		ec.setUseDisk(false);
		es.start(ec);
		
		es.addTranslator("t", new ExecutionFactory<Object, Object>() {
			@Override
			public Object getConnection(Object factory) throws TranslatorException {
				return factory;
			}
			@Override
			public void closeConnection(Object connection, Object factory) {
			}
			@Override
			public void getMetadata(MetadataFactory metadataFactory, Object conn)
					throws TranslatorException {
				assertNotNull(conn);
				Table t = metadataFactory.addTable("x");
				metadataFactory.addColumn("a", "string", t);
			}
		});
		es.addConnectionFactory("b", new Object());
		ModelMetaData mmd1 = new ModelMetaData();
		mmd1.setName("b");
		mmd1.setSupportsMultiSourceBindings(true);
		mmd1.addSourceMapping("x", "t", "a"); //a is missing
		mmd1.addSourceMapping("y", "t", "b");
		
		es.deployVDB("vdb", mmd1);		
	}
	
	@Test public void testDynamicUpdate() throws Exception {
		EmbeddedConfiguration ec = new EmbeddedConfiguration();
		MockTransactionManager tm = new MockTransactionManager();
		ec.setTransactionManager(tm);
		ec.setUseDisk(false);
		es.start(ec);
		
		es.addTranslator("t", new ExecutionFactory<Void, Void>() {
		
			@Override
			public boolean supportsCompareCriteriaEquals() {
				return true;
			}
			
			@Override
			public boolean isSourceRequired() {
				return false;
			}
			
			@Override
			public UpdateExecution createUpdateExecution(Command command,
					ExecutionContext executionContext,
					RuntimeMetadata metadata, Void connection)
					throws TranslatorException {
				Collection<Literal> values = CollectorVisitor.collectObjects(Literal.class, command);
				assertEquals(2, values.size());
				for (Literal literal : values) {
					assertFalse(literal.getValue() instanceof Reference);
				}
				return new UpdateExecution() {
					
					@Override
					public void execute() throws TranslatorException {
						
					}
					
					@Override
					public void close() {
						
					}
					
					@Override
					public void cancel() throws TranslatorException {
						
					}
					
					@Override
					public int[] getUpdateCounts() throws DataNotAvailableException,
							TranslatorException {
						return new int[] {1};
					}
				};
			}
		});
		
		ModelMetaData mmd1 = new ModelMetaData();
		mmd1.setName("accounts");
		mmd1.setSchemaSourceType("ddl");
		mmd1.setSchemaText(ObjectConverterUtil.convertFileToString(UnitTestUtil.getTestDataFile("dynamic_update.sql")));
		mmd1.addSourceMapping("y", "t", null);
		
		es.deployVDB("vdb", mmd1);
		
		Connection c = es.getDriver().connect("jdbc:teiid:vdb", null);
		PreparedStatement ps = c.prepareStatement("update hello1 set SchemaName=? where Name=?");
		ps.setString(1,"test1223");
	    ps.setString(2,"Columns");
		assertEquals(1, ps.executeUpdate());
	}
	
	public static boolean started;
	
	public static class MyEF extends ExecutionFactory<Void, Void> {
		
		@Override
		public void start() throws TranslatorException {
			started = true;
		}
	}
	
	@Test public void testStart() throws TranslatorException {
		es.addTranslator(MyEF.class);
		assertTrue(started);
	}
	
	@Test public void testGlobalTempTables() throws Exception {
		EmbeddedConfiguration ec = new EmbeddedConfiguration();
		ec.setMaxResultSetCacheStaleness(0);
		MockTransactionManager tm = new MockTransactionManager();
		ec.setTransactionManager(tm);
		ec.setUseDisk(false);
		es.start(ec);
		
		es.deployVDB(new ByteArrayInputStream("<vdb name=\"test\" version=\"1\"><model name=\"test\" type=\"VIRTUAL\"><metadata type=\"DDL\"><![CDATA[CREATE global temporary table some_temp (col1 string, col2 time) options (updatable true);]]> </metadata></model></vdb>".getBytes()));
		
		Connection c = es.getDriver().connect("jdbc:teiid:test", null);
		
		PreparedStatement ps = c.prepareStatement("/*+ cache */ select * from some_temp");
		ResultSet rs = ps.executeQuery();
		assertFalse(rs.next());
		
		Connection c1 = es.getDriver().connect("jdbc:teiid:test", null);
		c1.createStatement().execute("insert into some_temp (col1) values ('a')");
		
		PreparedStatement ps1 = c1.prepareStatement("/*+ cache */ select * from some_temp");
		ResultSet rs1 = ps1.executeQuery();
		assertTrue(rs1.next()); //there's a result for the second session
		
		rs = ps.executeQuery();
		assertFalse(rs.next()); //still no result in the first session
		
		c.createStatement().execute("insert into some_temp (col1) values ('b')");
		
		rs = ps.executeQuery();
		assertTrue(rs.next()); //still no result in the first session
		
		//ensure without caching that we have the right results
		rs = c.createStatement().executeQuery("select * from some_temp");
		assertTrue(rs.next());
		assertEquals("b", rs.getString(1));
		
		rs = c1.createStatement().executeQuery("select * from some_temp");
		assertTrue(rs.next());
		assertEquals("a", rs.getString(1));
	}
	
	@Test public void testMaxRows() throws Exception {
		EmbeddedConfiguration ec = new EmbeddedConfiguration();
		ec.setMaxResultSetCacheStaleness(0);
		MockTransactionManager tm = new MockTransactionManager();
		ec.setTransactionManager(tm);
		ec.setUseDisk(false);
		es.start(ec);
		
		es.deployVDB(new ByteArrayInputStream("<vdb name=\"test\" version=\"1\"><model name=\"test\" type=\"VIRTUAL\"><metadata type=\"DDL\"><![CDATA[CREATE virtual procedure proc (out col1 string result) returns TABLE (r1 string) as begin col1 = 'a'; select 'b' union all select 'c'; end;]]> </metadata></model></vdb>".getBytes()));
		
		Connection c = es.getDriver().connect("jdbc:teiid:test", null);
		
		CallableStatement cs = c.prepareCall("{? = call proc()}");
		ResultSet rs = cs.executeQuery();
		assertTrue(rs.next());
		assertTrue(rs.next());
		assertFalse(rs.next());
		assertEquals("a", cs.getString(1));
		
		//ensure that we don't drop the parameter row (which is last)
		cs.setMaxRows(1);
		rs = cs.executeQuery();
		assertTrue(rs.next());
		assertFalse(rs.next());
		assertEquals("a", cs.getString(1));
		
		//ensure that we can skip batches
		cs.setMaxRows(1);
		cs.setFetchSize(1);
		rs = cs.executeQuery();
		assertTrue(rs.next());
		assertFalse(rs.next());
		assertEquals("a", cs.getString(1));
		
		//cache should behave as expected when populated
		cs = c.prepareCall("/*+ cache */ {? = call proc()}");
		cs.setMaxRows(1);
		rs = cs.executeQuery();
		assertTrue(rs.next());
		assertFalse(rs.next());
		assertEquals("a", cs.getString(1));
		
		//accessing from cache without the max should still give us the full result
		cs.setMaxRows(0);
		rs = cs.executeQuery();
		assertTrue(rs.next());
		assertTrue(rs.next());
		assertFalse(rs.next());
		assertEquals("a", cs.getString(1));
		
		//accessing again with max should give the smaller result
		cs.setMaxRows(1);
		rs = cs.executeQuery();
		assertTrue(rs.next());
		assertFalse(rs.next());
		assertEquals("a", cs.getString(1));
	}
	
	@Test public void testSourceLobUnderTxn() throws Exception {
		EmbeddedConfiguration ec = new EmbeddedConfiguration();
		ec.setMaxResultSetCacheStaleness(0);
		MockTransactionManager tm = new MockTransactionManager();
		ec.setTransactionManager(tm);
		ec.setUseDisk(false);
		es.start(ec);
		
		final AtomicBoolean closed = new AtomicBoolean();
		es.addTranslator("foo", new ExecutionFactory() {
			
			@Override
			public boolean isSourceRequired() {
				return false;
			}
			
			@Override
			public ResultSetExecution createResultSetExecution(
					QueryExpression command, ExecutionContext executionContext,
					RuntimeMetadata metadata, Object connection)
					throws TranslatorException {
				return new ResultSetExecution() {
					
					private boolean returned;

					@Override
					public void execute() throws TranslatorException {
						
					}
					
					@Override
					public void close() {
						closed.set(true);
					}
					
					@Override
					public void cancel() throws TranslatorException {
						
					}
					
					@Override
					public List<?> next() throws TranslatorException, DataNotAvailableException {
						if (returned) {
							return null;
						}
						returned = true;
						ArrayList<Object> result = new ArrayList<Object>(1);
						result.add(new SQLXMLImpl(new InputStreamFactory() {
							
							@Override
							public InputStream getInputStream() throws IOException {
								//need to make it of a sufficient size to not be inlined
								return new ByteArrayInputStream(new byte[DataTypeManager.MAX_LOB_MEMORY_BYTES + 1]);
							}
						}));
						return result;
					}
				};
			}
		});
		es.deployVDB(new ByteArrayInputStream("<vdb name=\"test\" version=\"1\"><model name=\"test\"><source name=\"foo\" translator-name=\"foo\"/><metadata type=\"DDL\"><![CDATA[CREATE foreign table x (y xml);]]> </metadata></model></vdb>".getBytes()));
		
		Connection c = es.getDriver().connect("jdbc:teiid:test", null);
		
		c.setAutoCommit(false);
		
		Statement s = c.createStatement();
		
		ResultSet rs = s.executeQuery("select * from x");
		
		rs.next();
		
		assertFalse(closed.get());
		
		s.close();
		
		assertTrue(closed.get());
	}
	
	@Test public void testUndeploy() throws Exception { 
		es.start(new EmbeddedConfiguration());
		es.deployVDB(new ByteArrayInputStream("<vdb name=\"test\" version=\"1\"><model type=\"VIRTUAL\" name=\"test\"><metadata type=\"DDL\"><![CDATA[CREATE view x as select 1;]]> </metadata></model></vdb>".getBytes()));
		Connection c = es.getDriver().connect("jdbc:teiid:test", null);
		assertTrue(c.isValid(10));
		es.undeployVDB("test");
		assertTrue(!c.isValid(10));
	}
	
	@Test public void testQueryTimeout() throws Exception {
		es.start(new EmbeddedConfiguration());
		es.addTranslator("foo", new ExecutionFactory() {
			@Override
			public boolean isSourceRequired() {
				return false;
			}
			
			@Override
			public ResultSetExecution createResultSetExecution(
					QueryExpression command, ExecutionContext executionContext,
					RuntimeMetadata metadata, Object connection)
					throws TranslatorException {
				try {
					Thread.sleep(5000);
				} catch (InterruptedException e) {
				}
				return super.createResultSetExecution(command, executionContext, metadata,
						connection);
			}
			
		});
		es.deployVDB(new ByteArrayInputStream("<vdb name=\"test\" version=\"1\"><model name=\"test\"><source name=\"foo\" translator-name=\"foo\"/><metadata type=\"DDL\"><![CDATA[CREATE foreign table x (y xml);]]> </metadata></model></vdb>".getBytes()));
		Connection c = es.getDriver().connect("jdbc:teiid:test", null);
		Statement s = c.createStatement();
		s.setQueryTimeout(1);
		try {
			s.execute("select * from x");
			fail();
		} catch (SQLException e) {
			assertEquals(SQLStates.QUERY_CANCELED, e.getSQLState());
		}
		
	}
	
	@Test
	public void testMultipleEmbeddedServerInOneVM() throws TranslatorException {
		es.addTranslator(MyEFES1.class);
		es.start(new EmbeddedConfiguration());
		assertTrue(isES1started);

		EmbeddedServer es2 = new EmbeddedServer();
		es2.start(new EmbeddedConfiguration());
		es2.addTranslator(MyEFES2.class);
		assertTrue(isES2started);
		es2.stop();
	}

	public static boolean isES1started;
	public static boolean isES2started;

	public static class MyEFES1 extends ExecutionFactory<Void, Void> {

		@Override
		public void start() throws TranslatorException {
			isES1started = true;
		}
	}

	public static class MyEFES2 extends ExecutionFactory<Void, Void> {

		@Override
		public void start() throws TranslatorException {
			isES2started = true;
		}
	}

    @Test 
    public void testExternalMaterializationManagement() throws Exception {
        EmbeddedConfiguration ec = new EmbeddedConfiguration();
        ec.setUseDisk(false);
        ec.setTransactionManager(SimpleMock.createSimpleMock(TransactionManager.class));
        es.transactionService.setXaTerminator(SimpleMock.createSimpleMock(XATerminator.class));
        es.transactionService.setWorkManager(new FakeWorkManager());
        
        es.start(ec);
        es.transactionService.setDetectTransactions(false);
        
        final AtomicBoolean loaded = new AtomicBoolean();
        final AtomicBoolean valid = new AtomicBoolean();
        final AtomicInteger matTableCount = new AtomicInteger();
        final AtomicInteger tableCount = new AtomicInteger();
        final AtomicBoolean hasStatus = new AtomicBoolean();
        
        es.addTranslator("y", new ExecutionFactory<AtomicInteger, Object> () {
            public boolean supportsCompareCriteriaEquals() {
                return true;
            }
            
            @Override
            public Object getConnection(AtomicInteger factory)
                    throws TranslatorException {
                return factory.incrementAndGet();
            }
            
            @Override
            public void closeConnection(Object connection, AtomicInteger factory) {
                
            }
            
            @Override
            public void getMetadata(MetadataFactory metadataFactory, Object conn)
                    throws TranslatorException {
                assertEquals(conn, Integer.valueOf(1));
                Table t = metadataFactory.addTable("my_table");
                t.setSupportsUpdate(true);
                Column c = metadataFactory.addColumn("my_column", TypeFacility.RUNTIME_NAMES.STRING, t);
                c.setUpdatable(true);
                
                // mat table
                t = metadataFactory.addTable("mat_table");
                t.setSupportsUpdate(true);
                c = metadataFactory.addColumn("my_column", TypeFacility.RUNTIME_NAMES.STRING, t);
                c.setUpdatable(true);

                // status table
                t = metadataFactory.addTable("status");
                t.setSupportsUpdate(true);
                c = metadataFactory.addColumn("VDBName", TypeFacility.RUNTIME_NAMES.STRING, t);
                c.setUpdatable(true);
                c = metadataFactory.addColumn("VDBVersion", TypeFacility.RUNTIME_NAMES.STRING, t);
                c.setUpdatable(true);
                c = metadataFactory.addColumn("SchemaName", TypeFacility.RUNTIME_NAMES.STRING, t);
                c.setUpdatable(true);
                c = metadataFactory.addColumn("Name", TypeFacility.RUNTIME_NAMES.STRING, t);
                c.setUpdatable(true);
                c = metadataFactory.addColumn("TargetSchemaName", TypeFacility.RUNTIME_NAMES.STRING, t);
                c.setUpdatable(true);
                c = metadataFactory.addColumn("TargetName", TypeFacility.RUNTIME_NAMES.STRING, t);
                c.setUpdatable(true);
                c = metadataFactory.addColumn("Valid", TypeFacility.RUNTIME_NAMES.BOOLEAN, t);
                c.setUpdatable(true);
                c = metadataFactory.addColumn("LoadState", TypeFacility.RUNTIME_NAMES.STRING, t);
                c.setUpdatable(true);
                c = metadataFactory.addColumn("Cardinality", TypeFacility.RUNTIME_NAMES.LONG, t);
                c.setUpdatable(true);
                c = metadataFactory.addColumn("Updated", TypeFacility.RUNTIME_NAMES.TIMESTAMP, t);
                c.setUpdatable(true);
                c = metadataFactory.addColumn("LoadNumber", TypeFacility.RUNTIME_NAMES.LONG, t);
                c.setUpdatable(true);
                metadataFactory.addPrimaryKey("PK", Arrays.asList("VDBName", "VDBVersion", "SchemaName", "Name"), t);
            }
            
            @Override
            public ResultSetExecution createResultSetExecution(
                final QueryExpression command, final ExecutionContext executionContext,
                final RuntimeMetadata metadata, final Object connection)
                throws TranslatorException {
                
                return new ResultSetExecution() {
                	Iterator<? extends List<? extends Object>> results;
                    @Override
                    public void execute() throws TranslatorException {
                    }
                    @Override
                    public void close() {
                    }
                    @Override
                    public void cancel() throws TranslatorException {
                    }
                    @Override
                    public List<?> next() throws TranslatorException, DataNotAvailableException {
                        String status = "SELECT status.TargetSchemaName, status.TargetName, status.Valid, "
                                + "status.LoadState, status.Updated, status.Cardinality, status.LoadNumber "
                                + "FROM status WHERE status.VDBName = 'test' AND status.VDBVersion = '1.0.0' "
                                + "AND status.SchemaName = 'virt' AND status.Name = 'my_view'";
                        if (results == null) {
	                        String commandString = command.toString();
							if (hasStatus.get() && commandString.equals(status)) {
	                            results = Arrays.asList(Arrays.asList(null, "mat_table", valid.get(), loaded.get()?"LOADED":"LOADING", new Timestamp(System.currentTimeMillis()), -1, new Integer(1))).iterator();
	                        } else if (hasStatus.get() && commandString.startsWith("SELECT status.Valid, status.LoadState FROM status")) {
	                        	results = Arrays.asList(Arrays.asList(valid.get(), loaded.get()?"LOADED":"LOADING")).iterator();
	                        } else if (loaded.get() && commandString.equals("SELECT mat_table.my_column FROM mat_table")) {
	                        	matTableCount.getAndIncrement();
	                        	results = Arrays.asList(Arrays.asList("mat_column0"), Arrays.asList("mat_column1")).iterator();
	                        } else if (commandString.equals("SELECT my_table.my_column FROM my_table")) {
	                            tableCount.getAndIncrement();
	                            results = Arrays.asList(Arrays.asList("regular_column")).iterator();
	                        }
                        }
                        if (results != null && results.hasNext()) {
                    		return results.next();
                        }
                    	return null;
                    }
                };
            }
        
            @Override
            public UpdateExecution createUpdateExecution(final Command command,
                    final ExecutionContext executionContext,
                    final RuntimeMetadata metadata, final Object connection)
                    throws TranslatorException {
                UpdateExecution ue = new UpdateExecution() {
                    
                    @Override
                    public void execute() throws TranslatorException {
                    	String commandString = command.toString();
						if (commandString.startsWith("INSERT INTO status")) {
                    		hasStatus.set(true);
                    	}
                        if (commandString.startsWith("INSERT INTO status") || commandString.startsWith("UPDATE status SET")) {
                        	if (commandString.contains("LoadState")) {
	                            synchronized (loaded) {
	                            	loaded.set(commandString.indexOf("LOADED") != -1);
	                            	loaded.notifyAll();
								}
                        	}
                            if (commandString.contains("Valid")) {
                            	valid.set(commandString.indexOf("TRUE") != -1);
                            }
                        }
                    }
                    
                    @Override
                    public void close() {
                        
                    }
                    
                    @Override
                    public void cancel() throws TranslatorException {
                        
                    }
                    
                    @Override
                    public int[] getUpdateCounts() throws DataNotAvailableException,
                            TranslatorException {
                        return new int[] {1};
                    }
                };
                return ue;
            }
        });
        final AtomicInteger counter = new AtomicInteger();
        ConnectionFactoryProvider<AtomicInteger> cfp = new EmbeddedServer.SimpleConnectionFactoryProvider<AtomicInteger>(counter);
        
        es.addConnectionFactoryProvider("z", cfp);
        
        ModelMetaData mmd = new ModelMetaData();
        mmd.setName("my_schema");
        mmd.addSourceMapping("x", "y", "z");

        ModelMetaData mmd1 = new ModelMetaData();
        mmd1.setName("virt");
        mmd1.setModelType(Type.VIRTUAL);
        mmd1.setSchemaSourceType("ddl");
        mmd1.setSchemaText("	create view my_view OPTIONS (" +
                "UPDATABLE 'true',MATERIALIZED 'TRUE',\n" + 
                "MATERIALIZED_TABLE 'my_schema.mat_table', \n" + 
                "\"teiid_rel:MATERIALIZED_STAGE_TABLE\" 'my_schema.mat_table',\n" + 
                "\"teiid_rel:ALLOW_MATVIEW_MANAGEMENT\" 'true', \n" + 
                "\"teiid_rel:MATVIEW_STATUS_TABLE\" 'my_schema.status', \n" +
                "\"teiid_rel:MATVIEW_AFTER_LOAD_SCRIPT\" 'select 1; select 1, ''a''', \n" +
                "\"teiid_rel:MATVIEW_SHARE_SCOPE\" 'NONE',\n" + 
                "\"teiid_rel:MATVIEW_ONERROR_ACTION\" 'THROW_EXCEPTION',\n" + 
                "\"teiid_rel:MATVIEW_TTL\" 100000)" +
                "as select * from \"my_table\";"
                + " create view mat_table as select 'I conflict';");

        es.deployVDB("test", mmd, mmd1);
        synchronized (loaded) {
            while (!loaded.get()) {
            	loaded.wait();
            }
		}
        Thread.sleep(2000); //need to ensure that the mat view is built
        
        final TeiidDriver td = es.getDriver();
        Connection c = td.connect("jdbc:teiid:test", null);
        Statement s = c.createStatement();
        ResultSet rs = s.executeQuery("select * from my_view");
        assertTrue(rs.next());
        assertEquals("mat_column0", rs.getString(1));
        
		s.execute("update my_schema.status set valid=false");
        
        try {
        	rs = s.executeQuery("select * from my_view");
        	fail("expected throw exception to work");
        } catch (SQLException e) {
        	
        }
        
        assertEquals(1, tableCount.get());
        
        //make sure a similar name doesn't cause an issue
  		rs = s.executeQuery("select * from (call sysadmin.updateMatView('virt', 'my_view', 'true')) as x");
  		rs.next();
  		assertEquals(2, rs.getInt(1));
              
        assertEquals(2, tableCount.get());
  		
        s.execute("call setProperty((SELECT UID FROM Sys.Tables WHERE SchemaName = 'virt' AND Name = 'my_view'), 'teiid_rel:MATVIEW_ONERROR_ACTION', 'WAIT')");

        //this thread should hang, until the status changes
        final AtomicBoolean success = new AtomicBoolean();
        Thread t = new Thread() {
        	public void run() {
                try {
                	Connection c1 = td.connect("jdbc:teiid:test", null);
					Statement s1 = c1.createStatement();
                	s1.executeQuery("select * from my_view");
                	success.set(true);
				} catch (SQLException e) {
				}
        	};
        };
        t.start();
        
        //wait to ensure that the thread is blocked
        Thread.sleep(5000);
        
        //update the status and make sure the thread finished
		s.execute("update my_schema.status set valid=true");
		t.join(10000);
		assertTrue(success.get());		
    }
    
	@Test public void testPreparedTypeResolving() throws Exception {
		EmbeddedConfiguration ec = new EmbeddedConfiguration();
		MockTransactionManager tm = new MockTransactionManager();
		ec.setTransactionManager(tm);
		ec.setUseDisk(false);
		es.start(ec);
		
		es.addTranslator("t", new ExecutionFactory<Void, Void>());
		
		ModelMetaData mmd1 = new ModelMetaData();
		mmd1.setName("b");
		mmd1.setModelType(Type.VIRTUAL);
		mmd1.setSchemaSourceType("ddl");
		mmd1.setSchemaText("create view v (i integer) as select 1");
		
		es.deployVDB("vdb", mmd1);
		
		Connection c = es.getDriver().connect("jdbc:teiid:vdb", null);
		//should expect a clob
		PreparedStatement ps = c.prepareStatement("select * from texttable(? columns a string) as x");
		ps.setCharacterStream(1, new StringReader("a\nb"));
		assertTrue(ps.execute());
	}
	
	@Test public void testGeometrySelect() throws Exception {
		EmbeddedConfiguration ec = new EmbeddedConfiguration();
		ec.setUseDisk(false);
		es.start(ec);
		
		ModelMetaData mmd1 = new ModelMetaData();
		mmd1.setName("b");
		mmd1.setModelType(Type.VIRTUAL);
		mmd1.setSchemaSourceType("ddl");
		mmd1.setSchemaText("create view v (i geometry) as select ST_GeomFromText('POLYGON ((100 100, 200 200, 75 75, 100 100))')");
		
		es.deployVDB("vdb", mmd1);
		
		Connection c = es.getDriver().connect("jdbc:teiid:vdb", null);
		Statement s = c.createStatement();
		ResultSet rs = s.executeQuery("select * from v");
		assertEquals("geometry", rs.getMetaData().getColumnTypeName(1));
		assertEquals(Types.BLOB, rs.getMetaData().getColumnType(1));
		assertEquals("java.sql.Blob", rs.getMetaData().getColumnClassName(1));
		rs.next();
		assertEquals(77, rs.getBlob(1).length());
	}
	
    @Test public void testUpdateCountAnonProc() throws Exception {
        EmbeddedConfiguration ec = new EmbeddedConfiguration();
        ec.setUseDisk(false);
        es.start(ec);
        
        ModelMetaData mmd1 = new ModelMetaData();
        mmd1.setName("b");
        mmd1.setModelType(Type.VIRTUAL);
        mmd1.addSourceMetadata("ddl", "create view v as select 1");
        
        es.deployVDB("vdb", mmd1);
        
        Connection c = es.getDriver().connect("jdbc:teiid:vdb", null);
        Statement s = c.createStatement();
        s.execute("set autoCommitTxn off");
        PreparedStatement ps = c.prepareStatement("begin select 1 without return; end");
        assertNull(ps.getMetaData());
        ps.execute();
        assertEquals(0, ps.getUpdateCount());
        assertNull(ps.getMetaData());        
    }
	
	@Test public void testPreParser() throws Exception {
		EmbeddedConfiguration ec = new EmbeddedConfiguration();
		ec.setPreParser(new PreParser() {
			
			@Override
			public String preParse(String command, CommandContext context) {
				if (command.equals("select 'hello world'")) {
					return "select 'goodbye'";
				}
				return command;
			}
		});
		es.start(ec);
		ModelMetaData mmd = new ModelMetaData();
		mmd.setName("y");
		mmd.setModelType(Type.VIRTUAL);
		mmd.addSourceMetadata("ddl", "create view dummy as select 1;");
		es.deployVDB("x", mmd);
		
		Connection c = es.getDriver().connect("jdbc:teiid:x", null);
		Statement s = c.createStatement();
		ResultSet rs = s.executeQuery("select 'hello world'");
		rs.next();
		assertEquals("goodbye", rs.getString(1));
	}
	
	@Test public void testTurnOffLobCleaning() throws Exception {
		EmbeddedConfiguration ec = new EmbeddedConfiguration();
		es.start(ec);
		ModelMetaData mmd = new ModelMetaData();
		mmd.setName("y");
		mmd.setModelType(Type.VIRTUAL);
		mmd.addSourceMetadata("ddl", "create view dummy as select 1;");
		es.deployVDB("x", mmd);

		Connection c = es.getDriver().connect("jdbc:teiid:x", null);
		Statement s = c.createStatement();
		s.execute("select teiid_session_set('clean_lobs_onclose', false)");
		ResultSet rs = s.executeQuery("WITH t(n) AS ( VALUES (1) UNION ALL SELECT n+1 FROM t WHERE n < 5000 ) SELECT xmlelement(root, xmlagg(xmlelement(val, n))) FROM t");
		assertTrue(rs.next());
		SQLXML val = rs.getSQLXML(1);
		rs.close();
		assertEquals(73906, val.getString().length());
	}
	
	@Test public void testDefaultEscape() throws Exception {
        EmbeddedConfiguration ec = new EmbeddedConfiguration();
        es.start(ec);
        ModelMetaData mmd = new ModelMetaData();
        mmd.setName("y");
        mmd.setModelType(Type.VIRTUAL);
        mmd.addSourceMetadata("ddl", "create view dummy as select 1;");
        es.deployVDB("x", mmd);

        Connection c = es.getDriver().connect("jdbc:teiid:x", null);
        Statement s = c.createStatement();
        ResultSet rs = s.executeQuery("select '_a' like '\\_a'");
        rs.next();
        assertFalse(rs.getBoolean(1));
        s.execute("select teiid_session_set('backslashDefaultMatchEscape', true)");
        rs = s.executeQuery("select '_a' like '\\_a'");
        rs.next();
        assertTrue(rs.getBoolean(1));
    }
	
	@Test
	public void testBufferManagerProperties() throws TranslatorException {
		EmbeddedConfiguration ec = new EmbeddedConfiguration();
		
		ec.setUseDisk(true);
		ec.setBufferDirectory(System.getProperty("java.io.tmpdir"));
		ec.setProcessorBatchSize(BufferManager.DEFAULT_PROCESSOR_BATCH_SIZE);
		ec.setMaxReserveKb(BufferManager.DEFAULT_RESERVE_BUFFER_KB);
		ec.setMaxProcessingKb(BufferManager.DEFAULT_MAX_PROCESSING_KB);
		
		ec.setInlineLobs(true);
		ec.setMaxOpenFiles(FileStorageManager.DEFAULT_MAX_OPEN_FILES);
		ec.setMaxBufferSpace(FileStorageManager.DEFAULT_MAX_BUFFERSPACE>>20);
		ec.setMaxFileSize(SplittableStorageManager.DEFAULT_MAX_FILESIZE);
		ec.setEncryptFiles(false);
		
		ec.setMaxStorageObjectSize(BufferFrontedFileStoreCache.DEFAuLT_MAX_OBJECT_SIZE);
		ec.setMemoryBufferOffHeap(false);
		
		started = false;
		es.addTranslator(MyEF.class);
		es.start(ec);
		assertTrue(started);
	}
	
	@Test(expected=VirtualDatabaseException.class)
	public void testRequireRoles() throws Exception {
		EmbeddedConfiguration ec = new EmbeddedConfiguration();
		es.start(ec);
		es.repo.setDataRolesRequired(true);
		
		ModelMetaData mmd = new ModelMetaData();
		mmd.setName("y");
		mmd.setModelType(Type.VIRTUAL);
		mmd.addSourceMetadata("ddl", "create view dummy as select 1;");
		es.deployVDB("x", mmd);
	}
	
	@Test public void testSystemSubquery() throws Exception {
		//already working
		String query = "SELECT t.Name FROM (select * from SYS.Tables AS t limit 10) as t, (SELECT DISTINCT c.TableName FROM SYS.Columns AS c where c.Name > 'A') AS X__1 WHERE t.Name = X__1.TableName";
		EmbeddedConfiguration ec = new EmbeddedConfiguration();
		es.start(ec);
		ModelMetaData mmd = new ModelMetaData();
		mmd.setName("x");
		mmd.setModelType(Type.VIRTUAL);
		mmd.addSourceMetadata("ddl", "create view v as select 1 as c");
		es.deployVDB("x", mmd);
		Connection c = es.getDriver().connect("jdbc:teiid:x", null);
		Statement s = c.createStatement();
		extractRowCount(query, s, 10);

		//was throwing exception
		query = "SELECT t.Name FROM (select * from SYS.Tables AS t limit 10) as t, (SELECT DISTINCT c.TableName FROM SYS.Columns AS c) AS X__1 WHERE t.Name = X__1.TableName";
		extractRowCount(query, s, 10);
	}

	private void extractRowCount(String query, Statement s, int count)
			throws SQLException {
		s.execute(query);
		ResultSet rs = s.getResultSet();
		int i = 0;
		while (rs.next()) {
			i++;
		}
		assertEquals(count, i);
	}
	
	@Test public void testTempVisibilityToExecuteImmediate() throws Exception {
		EmbeddedConfiguration ec = new EmbeddedConfiguration();
		es.start(ec);
		ModelMetaData mmd = new ModelMetaData();
		mmd.setName("x");
		mmd.setModelType(Type.VIRTUAL);
		mmd.addSourceMetadata("ddl", "create procedure p () as execute immediate 'select 1' as x integer into #temp;");
		es.deployVDB("x", mmd);
		Connection c = es.getDriver().connect("jdbc:teiid:x", null);
		Statement s = c.createStatement();
		s.execute("create local temporary table #temp (x integer)");
		s.execute("exec p()");
		extractRowCount("select * from #temp", s, 0);
	}
	
	@Test public void testSubqueryCache() throws Exception {
		EmbeddedConfiguration ec = new EmbeddedConfiguration();
		es.start(ec);
		ModelMetaData mmd = new ModelMetaData();
		mmd.setName("x");
		mmd.setModelType(Type.VIRTUAL);
		mmd.addSourceMetadata("ddl", ObjectConverterUtil.convertFileToString(UnitTestUtil.getTestDataFile("proc.sql")));
		es.deployVDB("x", mmd);
		Connection c = es.getDriver().connect("jdbc:teiid:x", null);
		Statement s = c.createStatement();
		String[] statements = ObjectConverterUtil.convertFileToString(UnitTestUtil.getTestDataFile("data.sql")).split(";");
		for (String statement:statements) {
			s.execute(statement);
		}
		s.execute("set autoCommitTxn off");
		s.execute("SELECT \"citmp.KoordX\" ,\"citmp.KoordY\" ,( SELECT \"store.insideFence\" FROM ( EXEC point_inside_store ( CAST ( \"citmp.KoordX\" AS float ) ,CAST ( \"citmp.KoordY\" AS float ) ) ) as \"store\" ) as \"insideStore\" ,( SELECT \"firstsection.insideFence\" FROM ( EXEC point_inside_store ( CAST ( \"citmp.KoordX\" AS float ) ,CAST ( \"citmp.KoordY\" AS float ) ) ) as \"firstsection\" ) as \"insideFirstsection\" FROM sample_coords as \"citmp\" ORDER BY insideStore ASC ,insideFirstsection DESC");
		ResultSet rs = s.getResultSet();
		while (rs.next()) {
			//the last two columns should be identical
			assertEquals(rs.getInt(3), rs.getInt(4));
		}
	}
	
	@Test(expected=TeiidSQLException.class) public void testCancelSystemQuery() throws Exception {
		EmbeddedConfiguration ec = new EmbeddedConfiguration();
		es.start(ec);
		ModelMetaData mmd = new ModelMetaData();
		mmd.setName("x");
		mmd.setModelType(Type.VIRTUAL);
		mmd.addSourceMetadata("ddl", "create view v as select 1;");
		es.deployVDB("x", mmd);
		Connection c = es.getDriver().connect("jdbc:teiid:x", null);
		final Statement s = c.createStatement();
		Thread t = new Thread() {
			@Override
			public void run() {
				try {
					Thread.sleep(1000);
					s.cancel();
				} catch (InterruptedException e) {
				} catch (SQLException e) {
				}
			}
		};
		t.start();
		ResultSet rs = s.executeQuery("select count(*) from columns c, columns c1, columns c2, columns c3, columns c4");
		rs.next();
		fail();
	}
	
	@Test public void testSemanticVersioning() throws Exception {
		EmbeddedConfiguration ec = new EmbeddedConfiguration();
		es.start(ec);
		
		ModelMetaData mmd = new ModelMetaData();
		mmd.setName("x");
		mmd.setModelType(Type.VIRTUAL);
		mmd.addSourceMetadata("ddl", "create view v as select 1;");
		
		es.deployVDB("x.0.9.0", mmd);
		es.deployVDB("x.1.0.1", mmd);
		es.deployVDB("x.1.1.0", mmd);
		
		Connection c = es.getDriver().connect("jdbc:teiid:x", null);
		Statement s = c.createStatement();
		ResultSet rs = s.executeQuery("values (current_database())");
		rs.next();
		assertEquals("x", rs.getString(1));
		
		rs = s.executeQuery("select version from virtualdatabases");
		rs.next();
		assertEquals("0.9.0", rs.getString(1));
		
		try {
			//v1.0.0 does not exist
			c = es.getDriver().connect("jdbc:teiid:x.v1.0", null);
			fail();
		} catch (TeiidSQLException e) {
			
		}

		c = es.getDriver().connect("jdbc:teiid:x.1.0.1", null);
		s = c.createStatement();
		rs = s.executeQuery("select version from virtualdatabases");
		rs.next();
		assertEquals("1.0.1", rs.getString(1));
		
		try {
			//old style non-semantic version
			c = es.getDriver().connect("jdbc:teiid:x.1", null);
			fail();
		} catch (TeiidSQLException e) {
			
		}
		
		c = es.getDriver().connect("jdbc:teiid:x.1.", null);
		s = c.createStatement();
		rs = s.executeQuery("select version from virtualdatabases");
		rs.next();
		assertEquals("1.0.1", rs.getString(1));

		
		c = es.getDriver().connect("jdbc:teiid:x.1.1.", null);
		s = c.createStatement();
		rs = s.executeQuery("select version from virtualdatabases");
		rs.next();
		assertEquals("1.1.0", rs.getString(1));
	}
	
	@Test public void testSemanticVersioningAny() throws Exception {
		EmbeddedConfiguration ec = new EmbeddedConfiguration();
		es.start(ec);
		
		es.deployVDB(new ByteArrayInputStream(createVDB("x", "0.9").getBytes("UTF-8")));
		
		Connection c = es.getDriver().connect("jdbc:teiid:x", null);
		Statement s = c.createStatement();
		ResultSet rs = s.executeQuery("values (current_database())");
		rs.next();
		assertEquals("x", rs.getString(1));
		
		rs = s.executeQuery("select version from virtualdatabases");
		rs.next();
		assertEquals("0.9.0", rs.getString(1));
		
		es.deployVDB(new ByteArrayInputStream(createVDB("x", "1.1.1").getBytes("UTF-8")));
		
		try {
			//old style non-semantic version
			c = es.getDriver().connect("jdbc:teiid:x.1", null);
			fail();
		} catch (TeiidSQLException e) {
			
		}
		
		c = es.getDriver().connect("jdbc:teiid:x.1.", null);
		s = c.createStatement();
		rs = s.executeQuery("select version from virtualdatabases");
		rs.next();
		assertEquals("1.1.1", rs.getString(1));
		
		c = es.getDriver().connect("jdbc:teiid:x.1.1.", null);
		s = c.createStatement();
		rs = s.executeQuery("select version from virtualdatabases");
		rs.next();
		assertEquals("1.1.1", rs.getString(1));

		es.deployVDB(new ByteArrayInputStream(createVDB("x", "1.11.1").getBytes("UTF-8")));
		es.deployVDB(new ByteArrayInputStream(createVDB("x", "1.0.1").getBytes("UTF-8")));
		
		c = es.getDriver().connect("jdbc:teiid:x.1.1.", null);
		s = c.createStatement();
		rs = s.executeQuery("select version from virtualdatabases");
		rs.next();
		assertEquals("1.1.1", rs.getString(1));
		
		c = es.getDriver().connect("jdbc:teiid:x.1.0.", null);
		s = c.createStatement();
		rs = s.executeQuery("select version from virtualdatabases");
		rs.next();
		assertEquals("1.0.1", rs.getString(1));

		try {
			c = es.getDriver().connect("jdbc:teiid:x.1.12.0", null);
			fail();
		} catch (TeiidSQLException e) {
			
		}
	}

	private String createVDB(String name, String version) {
		return "<vdb name=\""+ name +"\" version=\""+version+"\"><connection-type>ANY</connection-type><model name=\"x\" type=\"VIRTUAL\"><metadata type=\"ddl\">create view v as select 1</metadata></model></vdb>";
	}
	
	@Test public void testVirtualFunctions() throws Exception {
		EmbeddedConfiguration ec = new EmbeddedConfiguration();
		es.start(ec);
		es.deployVDB(new ByteArrayInputStream(("<vdb name=\"ddlfunctions\" version=\"1\">"
				+ "<model visible=\"true\" type=\"VIRTUAL\" name=\"FunctionModel\">"
				+ "			<metadata type=\"DDL\"><![CDATA["
				+ "	 	   CREATE VIRTUAL function f1(p1 integer) RETURNS integer as return p1;"
				+ " 	   CREATE VIEW TestView (c1 integer) AS SELECT f1(42) AS c1;"
				+ "	      ]]>"
				+ "</metadata></model></vdb>").getBytes()));
		Connection c = es.getDriver().connect("jdbc:teiid:ddlfunctions", null);
		Statement s = c.createStatement();
		s.execute("select f1(1)");
		ResultSet rs = s.getResultSet();
		rs.next();
		assertEquals(1, rs.getInt(1));
		s.execute("select * from testview");
		rs = s.getResultSet();
		rs.next();
		assertEquals(42, rs.getInt(1));
	}
	
	@Test public void testWithPushdownChangeName() throws Exception {
		EmbeddedConfiguration ec = new EmbeddedConfiguration();
		ec.setUseDisk(false);
		es.start(ec);
		
		HardCodedExecutionFactory hcef = new HardCodedExecutionFactory() {
			@Override
			public boolean supportsCommonTableExpressions() {
				return true;
			}
			
			@Override
			public boolean supportsSelfJoins() {
				return true;
			}
			
			@Override
			public boolean supportsCompareCriteriaEquals() {
				return true;
			}
			
			@Override
			public boolean supportsAliasedTable() {
				return true;
			}
			
			@Override
			public boolean isSourceRequired() {
				return false;
			}
			
			@Override
			public String getExcludedCommonTableExpressionName() {
				return "a";
			}
			
			@Override
			public boolean supportsInnerJoins() {
				return true;
			}
		};
		
		es.addTranslator("y", hcef);
		
		hcef.addData("WITH a__2 (x) AS (SELECT g_0.e1 FROM pm1.g1 AS g_0) SELECT g_0.x FROM a__2 AS g_0, a__2 AS g_1", Arrays.asList(Arrays.asList("a")));
		
		ModelMetaData mmd = new ModelMetaData();
		mmd.setName("my-schema");
		mmd.addSourceMapping("x", "y", null);
		mmd.addSourceMetadata("ddl", "create foreign table pm1.g1 (e1 string)");

		es.deployVDB("test", mmd);
		
		TeiidDriver td = es.getDriver();
		Connection c = td.connect("jdbc:teiid:test", null);
		Statement s = c.createStatement();
		
		//see the correct pushdown in hcef.addData above
		s.execute("with a (x) as (select e1 from pm1.g1) SELECT a.x from a, a z"); //$NON-NLS-1$
	}
	
	@Test public void testBatchedUpdateErrors() throws Exception {
		EmbeddedConfiguration ec = new EmbeddedConfiguration();
		ec.setUseDisk(false);
		es.start(ec);
		
		MockTransactionManager tm = new MockTransactionManager();
		ec.setTransactionManager(tm);
		
		HardCodedExecutionFactory hcef = new HardCodedExecutionFactory() {
			@Override
			public boolean supportsCompareCriteriaEquals() {
				return true;
			}
		};
		hcef.addUpdate("UPDATE pm1.g1 SET e1 = 'a' WHERE pm1.g1.e2 = 1", new int[] {1});
		hcef.addUpdate("UPDATE pm1.g1 SET e1 = 'b' WHERE pm1.g1.e2 = 2", new TranslatorException("i've failed"));
		es.addTranslator("y", hcef);
		
		ModelMetaData mmd = new ModelMetaData();
		mmd.setName("my-schema");
		mmd.addSourceMapping("x", "y", null);
		mmd.addSourceMetadata("ddl", "create foreign table pm1.g1 (e1 string, e2 integer) options (updatable true)");

		es.deployVDB("test", mmd);
		
		TeiidDriver td = es.getDriver();
		Connection c = td.connect("jdbc:teiid:test", null);
		Statement s = c.createStatement();
		
		s.addBatch("update pm1.g1 set e1 = 'a' where e2 = 1"); //$NON-NLS-1$
		s.addBatch("update pm1.g1 set e1 = 'b' where e2 = 2"); //$NON-NLS-1$
		try {
			s.executeBatch();
			fail();
		} catch (BatchUpdateException e) {
			int[] updateCounts = e.getUpdateCounts();
			assertArrayEquals(new int[] {1}, updateCounts);
			assertEquals(-1, s.getUpdateCount());
		}
		
		//redeploy with batch support
		
		hcef = new HardCodedExecutionFactory() {
			@Override
			public boolean supportsCompareCriteriaEquals() {
				return true;
			}
			
			@Override
			public boolean supportsBatchedUpdates() {
				return true;
			}
		};
		
		es.addTranslator("z", hcef);
		es.undeployVDB("test");
		mmd = new ModelMetaData();
		mmd.setName("my-schema");
		mmd.addSourceMetadata("ddl", "create foreign table pm1.g1 (e1 string, e2 integer) options (updatable true)");
		mmd.addSourceMapping("y", "z", null);
		es.deployVDB("test", mmd);

		c = td.connect("jdbc:teiid:test", null);
		s = c.createStatement();

		s.addBatch("update pm1.g1 set e1 = 'a' where e2 = 1"); //$NON-NLS-1$
		s.addBatch("update pm1.g1 set e1 = 'b' where e2 = 2"); //$NON-NLS-1$
		hcef.updateMap.clear();
		hcef.addUpdate("UPDATE pm1.g1 SET e1 = 'a' WHERE pm1.g1.e2 = 1;\nUPDATE pm1.g1 SET e1 = 'b' WHERE pm1.g1.e2 = 2;", new TranslatorBatchException(new SQLException(), new int[] {1, -3}));
		try {
			s.executeBatch();
			fail();
		} catch (BatchUpdateException e) {
			int[] updateCounts = e.getUpdateCounts();
			assertArrayEquals(new int[] {1, -3}, updateCounts);
			assertEquals(-1, s.getUpdateCount());
		}
	}
	
	@Translator(name="dummy")
	public static class DummyExecutionFactory extends ExecutionFactory {

	    static AtomicInteger INSTANCES = new AtomicInteger();
	    
	    int instance = INSTANCES.getAndIncrement();
	    
	    @Override
	    public void getMetadata(MetadataFactory metadataFactory, Object conn)
	            throws TranslatorException {
	        Table t = metadataFactory.addTable("test"+ String.valueOf(instance));
	        if (this.supportsOrderBy()) {
	            metadataFactory.addColumn("y", "integer", t);
	        } else {
	            metadataFactory.addColumn("x", "integer", t);
	        }
	    }
	    
	    @Override
	    public boolean isSourceRequiredForMetadata() {
	        return false;
	    }
	    
	};
	
    @Test public void testTranslatorCreation() throws Exception {
        EmbeddedConfiguration ec = new EmbeddedConfiguration();
        ec.setUseDisk(false);
        es.start(ec);
        
        es.addTranslator(DummyExecutionFactory.class);

        Map<String, String> props = new HashMap<String, String>();
        props.put("supportsOrderBy", "true");
        
        es.addTranslator("dummy-override", "dummy", props);

        ModelMetaData mmd = new ModelMetaData();
        mmd.setName("test-one");
        mmd.addSourceMapping("one", "dummy", null);
        
        ModelMetaData mmd2 = new ModelMetaData();
        mmd2.setName("test-two");
        mmd2.addSourceMapping("two", "dummy", null);
        
        ModelMetaData mmd3 = new ModelMetaData();
        mmd3.setName("test-three");
        mmd3.addSourceMapping("three", "dummy-override", null);
        
        es.deployVDB("test", mmd, mmd2, mmd3);

        TeiidDriver td = es.getDriver();
        Connection c = td.connect("jdbc:teiid:test", null);
        Statement s = c.createStatement();
        s.execute("select count(distinct name) from sys.tables where name like 'test%'");
        s.getResultSet().next();
        assertEquals(3, s.getResultSet().getInt(1));
        
        s.execute("select count(distinct name) from sys.columns where tablename like 'test%'");
        s.getResultSet().next();
        assertEquals(2, s.getResultSet().getInt(1));
    }

}
