/*
* 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.translator.jdbc;
import static org.junit.Assert.assertEquals;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import javax.xml.bind.JAXBException;
import junit.framework.Assert;
import org.mockito.Mockito;
import org.teiid.cdk.api.TranslationUtility;
import org.teiid.cdk.unittest.FakeTranslationFactory;
import org.teiid.core.TeiidRuntimeException;
import org.teiid.language.Command;
import org.teiid.metadata.FunctionMethod;
import org.teiid.query.function.metadata.FunctionMetadataReader;
import org.teiid.translator.TranslatorException;
import org.teiid.translator.ExecutionContext;
public class TranslationHelper {
public static final String PARTS_VDB = "/PartsSupplier.vdb"; //$NON-NLS-1$
public static final String BQT_VDB = "/bqt.vdb"; //$NON-NLS-1$
public static Command helpTranslate(String vdbFileName, String sql) {
return helpTranslate(vdbFileName, null, null, sql);
}
public static TranslationUtility getTranslationUtility(String vdbFileName, String udf) {
TranslationUtility util = null;
if (PARTS_VDB.equals(vdbFileName)) {
util = new TranslationUtility(TranslationHelper.class.getResource(vdbFileName));
} else if (BQT_VDB.equals(vdbFileName)){
util = FakeTranslationFactory.getInstance().getBQTTranslationUtility();
} else {
Assert.fail("unknown vdb"); //$NON-NLS-1$
}
if (udf != null) {
loadUDFs(udf, util);
}
return util;
}
public static void loadUDFs(String udf, TranslationUtility util) {
try {
Collection <FunctionMethod> methods = FunctionMetadataReader.loadFunctionMethods(TranslationHelper.class.getResource(udf).openStream());
util.setUDF(methods);
} catch (IOException e) {
throw new TeiidRuntimeException("failed to load UDF"); //$NON-NLS-1$
} catch (JAXBException e) {
throw new TeiidRuntimeException("failed to load UDF"); //$NON-NLS-1$
}
}
public static Command helpTranslate(String vdbFileName, String udf, List<FunctionMethod> pushdowns, String sql) {
TranslationUtility util = getTranslationUtility(vdbFileName, null);
Collection <FunctionMethod> methods = new ArrayList<FunctionMethod>();
if (udf != null) {
try {
methods.addAll(FunctionMetadataReader.loadFunctionMethods(TranslationHelper.class.getResource(udf).openStream()));
} catch (JAXBException e) {
throw new TeiidRuntimeException("failed to load UDF"); //$NON-NLS-1$
} catch (IOException e) {
throw new TeiidRuntimeException("failed to load UDF"); //$NON-NLS-1$
}
}
if (pushdowns != null) {
methods.addAll(pushdowns);
}
util.setUDF(methods);
return util.parseCommand(sql);
}
public static void helpTestVisitor(String vdb, String input, String expectedOutput, JDBCExecutionFactory translator) throws TranslatorException {
helpTestVisitor(vdb,null,input, expectedOutput, translator);
}
public static void helpTestVisitor(String vdb, String udf, String input, String expectedOutput, JDBCExecutionFactory translator) throws TranslatorException {
// Convert from sql to objects
Command obj = helpTranslate(vdb, udf, translator.getPushDownFunctions(), input);
helpTestVisitor(expectedOutput, translator, obj);
}
public static void helpTestVisitor(String expectedOutput, JDBCExecutionFactory translator, Command obj) throws TranslatorException {
TranslatedCommand tc = new TranslatedCommand(Mockito.mock(ExecutionContext.class), translator);
tc.translateCommand(obj);
assertEquals("Did not get correct sql", expectedOutput, tc.getSql()); //$NON-NLS-1$
}
}