org.dbunit.ant.Export Maven / Gradle / Ivy
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dbUnit is a JUnit extension (also usable from Ant and Maven) targeted for database-driven projects that, among other things, puts your database into a known state between test runs. This is an excellent way to avoid the myriad of problems that can occur when one test case corrupts the database and causes subsequent tests to fail or exacerbate the damage.
/*
*
* The DbUnit Database Testing Framework
* Copyright (C)2002-2004, DbUnit.org
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
package org.dbunit.ant;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import org.apache.tools.ant.Project;
import org.dbunit.DatabaseUnitException;
import org.dbunit.database.DatabaseSequenceFilter;
import org.dbunit.database.IDatabaseConnection;
import org.dbunit.dataset.FilteredDataSet;
import org.dbunit.dataset.IDataSet;
import org.dbunit.dataset.csv.CsvDataSetWriter;
import org.dbunit.dataset.excel.XlsDataSet;
import org.dbunit.dataset.filter.ITableFilter;
import org.dbunit.dataset.xml.FlatDtdDataSet;
import org.dbunit.dataset.xml.FlatXmlWriter;
import org.dbunit.dataset.xml.XmlDataSet;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* The Export class is the step that facilitates exporting
* the contents of the database and/or it's corresponding DTD to a file.
* The export can be performed on a full dataset or a partial one if
* specific table names are identified.
*
* @author Timothy Ruppert
* @author Ben Cox
* @version $Revision: 1084 $
* @since Jun 10, 2002
* @see DbUnitTaskStep
*/
public class Export extends AbstractStep
{
/**
* Logger for this class
*/
private static final Logger logger = LoggerFactory.getLogger(Export.class);
private File _dest;
private String _format = FORMAT_FLAT;
private String _doctype = null;
private String _encoding = null; // if no encoding set by script than the default encoding (UTF-8) of the wrietr is used
private List _tables = new ArrayList();
public Export()
{
}
private String getAbsolutePath(File filename)
{
return filename != null ? filename.getAbsolutePath() : "null";
}
public File getDest()
{
return _dest;
}
public String getFormat()
{
return _format;
}
public List getTables()
{
return _tables;
}
public void setDest(File dest)
{
logger.debug("setDest(dest={}) - start", dest);
_dest = dest;
}
public void setFormat(String format)
{
logger.debug("setFormat(format={}) - start", format);
if (format.equalsIgnoreCase(FORMAT_FLAT)
|| format.equalsIgnoreCase(FORMAT_XML)
|| format.equalsIgnoreCase(FORMAT_DTD)
|| format.equalsIgnoreCase(FORMAT_CSV)
|| format.equalsIgnoreCase(FORMAT_XLS))
{
_format = format;
}
else
{
throw new IllegalArgumentException("Type must be one of: 'flat'(default), 'xml', 'dtd' or 'xls' but was: " + format);
}
}
/**
* Encoding for XML-Output
* @return Returns the encoding.
*/
public String getEncoding()
{
return this._encoding;
}
public void setEncoding(String encoding)
{
this._encoding = encoding;
}
public void addTable(Table table)
{
logger.debug("addTable(table={}) - start", table);
_tables.add(table);
}
public void addQuery(Query query)
{
logger.debug("addQuery(query={}) - start", query);
_tables.add(query);
}
public void addQuerySet(QuerySet querySet) {
logger.debug("addQuerySet(querySet={}) - start", querySet);
_tables.add(querySet);
}
public String getDoctype()
{
return _doctype;
}
public void setDoctype(String doctype)
{
logger.debug("setDoctype(doctype={}) - start", doctype);
_doctype = doctype;
}
public void execute(IDatabaseConnection connection) throws DatabaseUnitException
{
logger.debug("execute(connection={}) - start", connection);
try
{
if (_dest == null)
{
throw new DatabaseUnitException("'_dest' is a required attribute of the step.");
}
IDataSet dataset = getExportDataSet(connection);
log("dataset tables: " + Arrays.asList(dataset.getTableNames()), Project.MSG_VERBOSE);
// Write the dataset
if (_format.equals(FORMAT_CSV))
{
CsvDataSetWriter.write(dataset, _dest);
}
else
{
OutputStream out = new FileOutputStream(_dest);
try
{
if (_format.equalsIgnoreCase(FORMAT_FLAT))
{
FlatXmlWriter writer = new FlatXmlWriter(out, getEncoding());
writer.setDocType(_doctype);
writer.write(dataset);
}
else if (_format.equalsIgnoreCase(FORMAT_XML))
{
XmlDataSet.write(dataset, out, getEncoding());
}
else if (_format.equalsIgnoreCase(FORMAT_DTD))
{
//TODO Should DTD also support encoding? It is basically an XML file...
FlatDtdDataSet.write(dataset, out);//, getEncoding());
}
else if (_format.equalsIgnoreCase(FORMAT_XLS))
{
XlsDataSet.write(dataset, out);
}
else
{
throw new IllegalArgumentException("The given format '"+_format+"' is not supported.");
}
}
finally
{
out.close();
}
}
log("Successfully wrote file '" + _dest + "'", Project.MSG_INFO);
}
catch (SQLException e)
{
throw new DatabaseUnitException(e);
}
catch (IOException e)
{
throw new DatabaseUnitException(e);
}
}
/**
* Creates the dataset that is finally used for the export
* @param connection
* @return The final dataset used for the export
* @throws DatabaseUnitException
* @throws SQLException
*/
protected IDataSet getExportDataSet(IDatabaseConnection connection)
throws DatabaseUnitException, SQLException
{
IDataSet dataset = getDatabaseDataSet(connection, this._tables, false);
if (isOrdered())
{
// Use topologically sorted database
ITableFilter filter = new DatabaseSequenceFilter(connection);
dataset = new FilteredDataSet(filter, dataset);
}
return dataset;
}
public String getLogMessage()
{
return "Executing export: "
+ "\n in format: " + _format
+ " to datafile: " + getAbsolutePath(_dest);
}
public String toString()
{
StringBuffer result = new StringBuffer();
result.append("Export: ");
result.append(" dest=" + getAbsolutePath(_dest));
result.append(", format= " + _format);
result.append(", doctype= " + _doctype);
result.append(", tables= " + _tables);
return result.toString();
}
}
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