/*
* 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.access;
import java.sql.Connection;
import java.util.ArrayList;
import java.util.List;
import org.teiid.language.AggregateFunction;
import org.teiid.language.Function;
import org.teiid.language.LanguageObject;
import org.teiid.translator.ExecutionContext;
import org.teiid.translator.MetadataProcessor;
import org.teiid.translator.SourceSystemFunctions;
import org.teiid.translator.Translator;
import org.teiid.translator.TranslatorException;
import org.teiid.translator.jdbc.AliasModifier;
import org.teiid.translator.jdbc.FunctionModifier;
import org.teiid.translator.jdbc.JDBCExecutionFactory;
import org.teiid.translator.jdbc.JDBCMetdataProcessor;
import org.teiid.translator.jdbc.sybase.BaseSybaseExecutionFactory;
@Translator(name="access", description="A translator for Microsoft Access Database")
public class AccessExecutionFactory extends BaseSybaseExecutionFactory {
public AccessExecutionFactory() {
setSupportsOrderBy(false);
setMaxInCriteriaSize(JDBCExecutionFactory.DEFAULT_MAX_IN_CRITERIA);
setMaxDependentInPredicates(10); //sql length length is 64k
}
@Override
public void start() throws TranslatorException {
super.start();
registerFunctionModifier(SourceSystemFunctions.ASCII, new AliasModifier("Asc")); //$NON-NLS-1$
registerFunctionModifier(SourceSystemFunctions.CHAR, new AliasModifier("Chr")); //$NON-NLS-1$
registerFunctionModifier(SourceSystemFunctions.CONCAT, new FunctionModifier() {
@Override
public List<?> translate(Function function) {
List<Object> result = new ArrayList<Object>(function.getParameters().size()*2 - 1);
for (int i = 0; i < function.getParameters().size(); i++) {
if (i > 0) {
result.add(" & "); //$NON-NLS-1$
}
result.add(function.getParameters().get(i));
}
return result;
}
});
registerFunctionModifier(SourceSystemFunctions.LENGTH, new AliasModifier("Len")); //$NON-NLS-1$
}
@Override
public String translateLiteralBoolean(Boolean booleanValue) {
if(booleanValue.booleanValue()) {
return "-1"; //$NON-NLS-1$
}
return "0"; //$NON-NLS-1$
}
@Override
public List<?> translate(LanguageObject obj, ExecutionContext context) {
if (obj instanceof AggregateFunction) {
AggregateFunction af = (AggregateFunction)obj;
if (af.getName().equals(AggregateFunction.STDDEV_POP)) {
af.setName("StDevP"); //$NON-NLS-1$
} else if (af.getName().equals(AggregateFunction.STDDEV_SAMP)) {
af.setName("StDev"); //$NON-NLS-1$
} else if (af.getName().equals(AggregateFunction.VAR_POP)) {
af.setName("VarP"); //$NON-NLS-1$
} else if (af.getName().equals(AggregateFunction.VAR_SAMP)) {
af.setName("Var"); //$NON-NLS-1$
}
}
return super.translate(obj, context);
}
@Override
public boolean addSourceComment() {
return false;
}
@Override
public boolean supportsRowLimit() {
return true;
}
@Override
public List<String> getSupportedFunctions() {
List<String> supportedFunctions = new ArrayList<String>();
supportedFunctions.addAll(super.getSupportedFunctions());
supportedFunctions.add(SourceSystemFunctions.ABS);
supportedFunctions.add(SourceSystemFunctions.EXP);
supportedFunctions.add(SourceSystemFunctions.ASCII);
supportedFunctions.add(SourceSystemFunctions.CHAR);
supportedFunctions.add(SourceSystemFunctions.CONCAT);
supportedFunctions.add(SourceSystemFunctions.LCASE);
supportedFunctions.add(SourceSystemFunctions.LEFT);
supportedFunctions.add(SourceSystemFunctions.LENGTH);
supportedFunctions.add(SourceSystemFunctions.LTRIM);
supportedFunctions.add(SourceSystemFunctions.RIGHT);
supportedFunctions.add(SourceSystemFunctions.RTRIM);
supportedFunctions.add(SourceSystemFunctions.TRIM);
supportedFunctions.add(SourceSystemFunctions.UCASE);
//TODO add support for formatting and use datepart for date methods
return supportedFunctions;
}
@Override
public boolean supportsAggregatesEnhancedNumeric() {
return true;
}
@Override
public MetadataProcessor<Connection> getMetadataProcessor() {
JDBCMetdataProcessor processor = new JDBCMetdataProcessor();
processor.setExcludeTables(".*[.]MSys.*"); //$NON-NLS-1$
processor.setImportKeys(false);
return processor;
}
}