/*
* JBoss, Home of Professional Open Source
* Copyright 2011 Red Hat Inc. and/or its affiliates and other contributors
* as indicated by the @authors tag. All rights reserved.
* See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jboss.arquillian.persistence.dbunit.dataset;
import java.io.IOException;
import java.io.InputStream;
import org.dbunit.dataset.DataSetException;
import org.dbunit.dataset.DefaultDataSet;
import org.dbunit.dataset.IDataSet;
import org.dbunit.dataset.ReplacementDataSet;
import org.dbunit.dataset.excel.XlsDataSet;
import org.dbunit.dataset.xml.FlatXmlDataSetBuilder;
import org.jboss.arquillian.persistence.dbunit.data.descriptor.Format;
import org.jboss.arquillian.persistence.dbunit.dataset.json.JsonDataSet;
import org.jboss.arquillian.persistence.dbunit.dataset.xml.DtdResolver;
import org.jboss.arquillian.persistence.dbunit.dataset.yaml.YamlDataSet;
import org.jboss.arquillian.persistence.dbunit.exception.DBUnitInitializationException;
import org.yaml.snakeyaml.Yaml;
/**
*
* @author <a href="mailto:bartosz.majsak@gmail.com">Bartosz Majsak</a>
*
*/
public class DataSetBuilder
{
private final Format format;
private DataSetBuilder(Format format)
{
this.format = format;
}
public IDataSet build(final String file)
{
IDataSet dataSet = null;
try
{
switch (format)
{
case XML:
dataSet = loadXmlDataSet(file);
break;
case EXCEL:
dataSet = loadExcelDataSet(file);
break;
case YAML:
dataSet = loadYamlDataSet(file);
break;
case JSON:
dataSet = loadJsonDataSet(file);
break;
default:
throw new DBUnitInitializationException("Unsupported data type " + format);
}
}
catch (Exception e)
{
throw new DBUnitInitializationException("Unable to load data set from given file: " + file, e);
}
return defineReplaceableExpressions(dataSet);
}
public static DataSetBuilder builderFor(final Format format)
{
return new DataSetBuilder(format);
}
// Private methods
private IDataSet loadXmlDataSet(final String xmlFile) throws DataSetException
{
final FlatXmlDataSetBuilder flatXmlDataSetBuilder = new FlatXmlDataSetBuilder();
flatXmlDataSetBuilder.setColumnSensing(true);
addDtdIfDefined(flatXmlDataSetBuilder, xmlFile);
return flatXmlDataSetBuilder.build(Thread.currentThread().getContextClassLoader().getResourceAsStream(xmlFile));
}
private void addDtdIfDefined(final FlatXmlDataSetBuilder flatXmlDataSetBuilder, final String xmlFile)
{
String dtd = new DtdResolver().resolveDtdLocationFullPath(xmlFile);
if (dtd != null)
{
try
{
flatXmlDataSetBuilder.setMetaDataSetFromDtd(Thread.currentThread().getContextClassLoader().getResourceAsStream(dtd));
}
catch (DataSetException e)
{
throw new DBUnitInitializationException("Unable to attach DTD " + dtd + " defined for " + xmlFile, e);
}
catch (IOException e)
{
throw new DBUnitInitializationException("Unable to attach DTD " + dtd + " defined for " + xmlFile, e);
}
}
}
private XlsDataSet loadExcelDataSet(final String file) throws IOException, DataSetException
{
final InputStream inputStream = Thread.currentThread().getContextClassLoader().getResourceAsStream(file);
return new XlsDataSet(inputStream);
}
private JsonDataSet loadJsonDataSet(final String file) throws IOException, DataSetException
{
final InputStream inputStream = Thread.currentThread().getContextClassLoader().getResourceAsStream(file);
return new JsonDataSet(inputStream);
}
private IDataSet loadYamlDataSet(final String file) throws IOException,
DataSetException
{
IDataSet dataSet;
if (isYamlEmpty(file))
{
dataSet = new DefaultDataSet();
}
else
{
final InputStream inputStream = Thread.currentThread().getContextClassLoader().getResourceAsStream(file);
dataSet = new YamlDataSet(inputStream);
if (inputStream != null)
{
inputStream.close();
}
}
return dataSet;
}
private boolean isYamlEmpty(final String yamlFile) throws IOException
{
final InputStream inputStream = Thread.currentThread().getContextClassLoader().getResourceAsStream(yamlFile);
final boolean isEmpty = new Yaml().load(inputStream) == null;
if (inputStream != null)
{
inputStream.close();
}
return isEmpty;
}
private IDataSet defineReplaceableExpressions(IDataSet dataSet)
{
final ReplacementDataSet replacementDataSet = new ReplacementDataSet(dataSet);
replacementDataSet.addReplacementObject("[null]", null);
replacementDataSet.addReplacementObject("[NULL]", null);
return replacementDataSet;
}
}