/*
* DynamicJasper: A library for creating reports dynamically by specifying
* columns, groups, styles, etc. at runtime. It also saves a lot of development
* time in many cases! (http://sourceforge.net/projects/dynamicjasper)
*
* Copyright (C) 2008 FDV Solutions (http://www.fdvsolutions.com)
*
* 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 ar.com.fdvs.dj.domain.entities.columns;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import net.sf.jasperreports.engine.JRVariable;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import ar.com.fdvs.dj.core.DJConstants;
import ar.com.fdvs.dj.domain.CustomExpression;
/**
* Column created to handle Custom Expressions.</br>
* @see CustomExpression
*/
public class ExpressionColumn extends SimpleColumn {
private static final Log log = LogFactory.getLog(ExpressionColumn.class);
private CustomExpression expression;
private Collection columns;
private Collection variables; //List of JRVariables
public Collection getVariables() {
return variables;
}
public void setVariables(Collection variables) {
this.variables = variables;
}
public Collection getColumns() {
return columns;
}
public void setColumns(Collection columns) {
this.columns = columns;
}
public CustomExpression getExpression() {
return expression;
}
public void setExpression(CustomExpression expression) {
this.expression = expression;
}
// public String getTextForExpression() {
// return "(("+CustomExpression.class.getName()+")$P{"+getColumnProperty().getProperty()+"})."+CustomExpression.EVAL_METHOD_NAME+"($F{"+getColumnProperty().getProperty()+"})";
// }
public String getValueClassNameForExpression() {
return String.class.getName(); //FIXME these should depend on the custom expression return type
}
public String getTextForExpression() {
StringBuffer sb = new StringBuffer("new ar.com.fdvs.dj.util.PropertiesMap()");
ArrayList properties = new ArrayList();
for (Iterator iter = columns.iterator(); iter.hasNext();) {
AbstractColumn col = (AbstractColumn) iter.next();
if (col instanceof SimpleColumn && !(col instanceof ExpressionColumn)) {
SimpleColumn propcol = (SimpleColumn) col;
properties.add(propcol.getColumnProperty());
}
}
//add other columns
for (Iterator iter = columns.iterator(); iter.hasNext();) {
AbstractColumn col = (AbstractColumn) iter.next();
if (col instanceof SimpleColumn && !(col instanceof ExpressionColumn)) {
SimpleColumn propcol = (SimpleColumn) col;
String propname = propcol.getColumnProperty().getProperty();
sb.append(".with(\"" + propname + "\",$F{" + propname + "})");
}
}
//Add Variables
for (Iterator iter = variables.iterator(); iter.hasNext();) {
JRVariable jrvar = (JRVariable) iter.next();
String varname = jrvar.getName();
sb.append(".with(\"v_" + varname + "\",$V{" + varname + "})");
}
//Add the parameter MAP
sb.append(".with(\"" + DJConstants.CUSTOM_EXPRESSION__PARAMETERS_MAP + "\",$P{" + DJConstants.CUSTOM_EXPRESSION__PARAMETERS_MAP + "})");
String stringExpression = "((("+CustomExpression.class.getName()+")$P{"+getColumnProperty().getProperty()+"})."+CustomExpression.EVAL_METHOD_NAME+"( "+ sb.toString() +" ))";
// return "(("+getValueClassNameForExpression()+")$P{"+getColumnProperty().getProperty()+"})."+CustomExpression.EVAL_METHOD_NAME+"( "+ sb.toString() +" )";
log.debug("Expression for CustomExpression = " + stringExpression);
return stringExpression;
// return "($P{"+getColumnProperty().getProperty()+"})."+CustomExpression.EVAL_METHOD_NAME+"( "+ sb.toString() +" )";
}
}