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net.sf.jasperreports.olap.xmla.Olap4jXmlaQueryExecuter Maven / Gradle / Ivy
/*
* JasperReports - Free Java Reporting Library.
* Copyright (C) 2001 - 2014 TIBCO Software Inc. All rights reserved.
* http://www.jaspersoft.com
*
* Unless you have purchased a commercial license agreement from Jaspersoft,
* the following license terms apply:
*
* This program is part of JasperReports.
*
* JasperReports 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 3 of the License, or
* (at your option) any later version.
*
* JasperReports 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 JasperReports. If not, see parametersMap
)
{
super(jasperReportsContext, dataset, parametersMap);
parseQuery();
}
@Override
protected String getCanonicalQueryLanguage()
{
return JRMdxQueryExecuterFactory.CANONICAL_LANGUAGE;
}
protected String getParameterReplacement(String parameterName)
{
return String.valueOf(getParameterValue(parameterName));
}
public JRDataSource createDatasource() throws JRException
{
Properties connectProps = new Properties();
connectProps.put(XMLA_SERVER, getParameterValue(JRXmlaQueryExecuterFactory.PARAMETER_XMLA_URL));
connectProps.put(XMLA_CATALOG, getParameterValue(JRXmlaQueryExecuterFactory.PARAMETER_XMLA_CATALOG));
connectProps.put(XMLA_DATA_SOURCE, getParameterValue(JRXmlaQueryExecuterFactory.PARAMETER_XMLA_DATASOURCE));
connectProps.put(XMLA_USER, getParameterValue(JRXmlaQueryExecuterFactory.PARAMETER_XMLA_USER));
connectProps.put(XMLA_PASSWORD, getParameterValue(JRXmlaQueryExecuterFactory.PARAMETER_XMLA_PASSWORD));
connectProps.put(OLAP4J_DRIVER, OLAP4J_XMLA_DRIVER_CLASS);
connectProps.put(OLAP4J_URL_PREFIX, OLAP4J_XMLA_URL_PREFIX);
// load driver and Connection
rConnection = null;
try
{
Class.forName(OLAP4J_XMLA_DRIVER_CLASS);
rConnection = java.sql.DriverManager.getConnection(OLAP4J_XMLA_URL_PREFIX, connectProps);
}
catch (Throwable t)
{
throw new JRException("error loading olap4j driver and getting Connection '" + OLAP4J_XMLA_DRIVER_CLASS + "'", t);
}
OlapConnection connection = (OlapConnection) rConnection;
/*
MdxParserFactory pFactory = connection.getParserFactory();
MdxParser parser = pFactory.createMdxParser(connection);
SelectNode parsedObject = parser.parseSelect(getQueryString());
MdxValidator validator = pFactory.createMdxValidator(connection);
try {
validator.validateSelect(parsedObject);
} catch (OlapException e) {
throw new JRException("Invalid MDX query: " + getQueryString(), e);
}
*/
if (log.isDebugEnabled())
{
log.debug("running MDX: " + getQueryString());
}
CellSet result = null;
try
{
OlapStatement statement = connection.createStatement();
result = statement.executeOlapQuery(getQueryString());
}
catch (OlapException e)
{
throw new JRException("Error executing query: " + getQueryString(),
e);
}
parseResult(result);
return new JROlapDataSource(dataset, xmlaResult);
}
public boolean cancelQuery() throws JRException
{
return false;
}
public void close()
{
if (rConnection != null)
{
try
{
rConnection.close();
}
catch (SQLException e)
{
throw new JRRuntimeException(e);
}
rConnection = null;
}
}
/**
* Parses the result into this class's structure
*
* @param result
* The CellSet query result
*/
protected void parseResult(CellSet result) throws JRException
{
if (log.isDebugEnabled())
{
OutputStream bos = new ByteArrayOutputStream();
CellSetFormatter formatter = new RectangularCellSetFormatter(true);
formatter.format(result, new PrintWriter(bos, true));
log.debug("Result:\n" + bos.toString());
}
xmlaResult = new JRXmlaResult();
parseAxes(result);
parseCellDataElement(result);
}
protected void parseAxes(CellSet result)
{
// Cycle over AxisInfo-Elements
Iterator itAxis = result.getAxes().iterator();
log.debug("# axes: " + result.getAxes().size());
while (itAxis.hasNext())
{
CellSetAxis itAxisElement = itAxis.next();
Axis axis = itAxisElement.getAxisMetaData().getAxisOrdinal();
if (axis.axisOrdinal() == Axis.FILTER.axisOrdinal())
{
if (log.isDebugEnabled())
{
log.debug("skipping filter axis: " + axis.name() + ", ordinal: " + axis.axisOrdinal());
}
continue;
}
JRXmlaResultAxis xmlaAxis = new JRXmlaResultAxis(axis.name());
xmlaResult.addAxis(xmlaAxis);
if (log.isDebugEnabled())
{
log.debug("adding axis: " + axis.name() + ", ordinal: " + axis.axisOrdinal());
}
handleHierInfo(xmlaAxis, itAxisElement.getAxisMetaData());
ListIterator positionsIt = itAxisElement.iterator();
while (positionsIt.hasNext())
{
Position p = positionsIt.next();
if (log.isDebugEnabled())
{
log.debug("adding pos : " + p.getOrdinal() + ", with member size: " + p.getMembers().size());
}
handlePosition(xmlaAxis, itAxisElement, p);
}
}
}
protected void parseCellDataElement(CellSet result) throws JRException
{
if (log.isDebugEnabled())
{
log.debug("COLUMNS axis size: " + result.getAxes().get(Axis.COLUMNS.axisOrdinal())
.getPositions().size());
log.debug("ROWS axis size: " + result.getAxes().get(Axis.ROWS.axisOrdinal())
.getPositions().size());
}
for (Position axis_1 : result.getAxes().get(Axis.ROWS.axisOrdinal()).getPositions())
{
for (Position axis_0 : result.getAxes().get(Axis.COLUMNS.axisOrdinal()).getPositions())
{
Cell currentCell = result.getCell(axis_0, axis_1);
if (currentCell.isError())
{
handleCellErrors(currentCell);
}
else
{
int cellOrdinal = currentCell.getOrdinal();
Object value = currentCell.getValue();
if (value instanceof Number)
{
try
{
value = currentCell.getDoubleValue();
}
catch (OlapException e)
{
throw new JRException(e);
}
}
String fmtValue = currentCell.getFormattedValue();
JRXmlaCell cell = new JRXmlaCell(value, fmtValue);
if (log.isDebugEnabled())
{
log.debug("Cell: " + cellOrdinal + ", at axis 0 pos: " + axis_0.getOrdinal() + ", axis 1 pos: " + axis_1.getOrdinal());
}
xmlaResult.setCell(cell, cellOrdinal);
}
}
}
}
protected void handleCellErrors(Cell currentCell) throws JRException
{
log.error(currentCell.getValue());
throw new JRException((OlapException) currentCell.getValue());
}
protected void handleHierInfo(JRXmlaResultAxis xmlaAxis, CellSetAxisMetaData axisMetaData)
{
for (Hierarchy h : axisMetaData.getHierarchies())
{
String dimName = h.getName(); // Get the Dimension Name
JRXmlaHierarchy hier = new JRXmlaHierarchy(dimName);
if (log.isDebugEnabled())
{
log.debug("Adding hierarchy: " + dimName);
}
xmlaAxis.addHierarchy(hier);
}
}
protected void handlePosition(JRXmlaResultAxis axis, CellSetAxis itAxisElement, Position p)
{
JRXmlaMemberTuple tuple = new JRXmlaMemberTuple(p.getMembers().size());
int memNum = 0;
Iterator it = p.getMembers().iterator();
while (it.hasNext())
{
Member m = it.next();
String hierName = m.getHierarchy().getName();
String uName = m.getUniqueName();
/* the OLAP4J API changed between 0.9.7 and 1.1.0 - deal with it */
String caption = null;
try
{
Method captionMethod = Member.class.getMethod("getCaption", new Class[] { Locale.class });
try
{
caption = (String) captionMethod.invoke(m, new Object[]{null});
}
catch (IllegalAccessException e)
{
throw new JRRuntimeException(e);
}
catch (Exception e)
{
throw new JRRuntimeException(e);
}
}
catch (SecurityException e)
{
throw new JRRuntimeException(e);
}
catch (NoSuchMethodException e)
{
try
{
// This is an olap4j 1.1.0+ member with a getCaption() method
Method captionMethod = Member.class.getMethod("getCaption");
caption = (String) captionMethod.invoke(m);
}
catch (Exception e1)
{
throw new JRRuntimeException(e1);
}
}
String lName = m.getLevel().getName();
int lNum = m.getLevel().getDepth();
if (log.isDebugEnabled())
{
log.debug("setting hierarchy: " + hierName + ", Level " + lName + ", level number: " + lNum);
}
JRXmlaMember member = new JRXmlaMember(caption, uName, hierName, lName, lNum);
tuple.setMember(memNum++, member);
}
axis.addTuple(tuple);
}
}
