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Free Java Reporting Library
/*
* JasperReports - Free Java Reporting Library.
* Copyright (C) 2001 - 2019 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 .
*/
package net.sf.jasperreports.components.sort.actions;
import java.util.List;
import net.sf.jasperreports.components.sort.FieldFilter;
import net.sf.jasperreports.engine.DatasetFilter;
import net.sf.jasperreports.engine.JRConstants;
import net.sf.jasperreports.engine.JRPropertiesMap;
import net.sf.jasperreports.engine.JasperReportsContext;
import net.sf.jasperreports.engine.design.JRDesignDataset;
import net.sf.jasperreports.web.commands.Command;
import net.sf.jasperreports.web.util.JacksonUtil;
/**
* @author Narcis Marcu ([email protected])
*/
public class FilterCommand implements Command
{
private static final long serialVersionUID = JRConstants.SERIAL_VERSION_UID;
public static final String DATASET_FILTER_PROPERTY = "net.sf.jasperreports.filters";
private JasperReportsContext jasperReportsContext;
protected JRDesignDataset dataset;
protected FilterData filterData;
private String oldSerializedFilters;
private String newSerializedFilters;
public FilterCommand(JasperReportsContext jasperReportsContext, JRDesignDataset dataset, FilterData filterData)
{
this.jasperReportsContext = jasperReportsContext;
this.dataset = dataset;
this.filterData = filterData;
}
@Override
public void execute()
{
// get existing filter as JSON string
String serializedFilters = "[]";
JRPropertiesMap propertiesMap = dataset.getPropertiesMap();
if (propertiesMap.getProperty(DATASET_FILTER_PROPERTY) != null) {
serializedFilters = propertiesMap.getProperty(DATASET_FILTER_PROPERTY);
}
oldSerializedFilters = serializedFilters;
JacksonUtil jacksonUtil = JacksonUtil.getInstance(jasperReportsContext);
List existingFilters = jacksonUtil.loadList(serializedFilters, FieldFilter.class);
if (!filterData.isClearFilter()) { // add filter
boolean addNewFilter = false;
if (existingFilters.size() == 0) {
addNewFilter = true;
} else {
// lookup new filter
FieldFilter filterForCurrentField = null;
for (DatasetFilter ff: existingFilters){
if (((FieldFilter)ff).getField().equals(filterData.getFieldName())) {
filterForCurrentField = (FieldFilter)ff;
break;
}
}
// update filterForCurrentField
if (filterForCurrentField != null) {
filterForCurrentField.setFilterTypeOperator(filterData.getFilterTypeOperator());
filterForCurrentField.setFilterValueEnd(filterData.getFieldValueEnd());
filterForCurrentField.setFilterValueStart(filterData.getFieldValueStart());
filterForCurrentField.setFilterPattern(filterData.getFilterPattern());
filterForCurrentField.setLocaleCode(filterData.getLocaleCode());
filterForCurrentField.setTimeZoneId(filterData.getTimeZoneId());
filterForCurrentField.setIsValid(null);
filterForCurrentField.setIsField(filterData.getIsField());
} else {
addNewFilter = true;
}
}
if (addNewFilter) {
FieldFilter newFilterField = new FieldFilter(
filterData.getFieldName(), filterData.getFieldValueStart(),
filterData.getFieldValueEnd(), filterData.getFilterType(),
filterData.getFilterTypeOperator());
newFilterField.setFilterPattern(filterData.getFilterPattern());
newFilterField.setLocaleCode(filterData.getLocaleCode());
newFilterField.setTimeZoneId(filterData.getTimeZoneId());
newFilterField.setIsField(filterData.getIsField());
existingFilters.add(newFilterField);
}
} else { // remove filter
FieldFilter filterToRemove = null;
for (DatasetFilter df: existingFilters){
if (((FieldFilter)df).getField().equals(filterData.getFieldName())) {
filterToRemove = (FieldFilter)df;
break;
}
}
if (filterToRemove != null) {
existingFilters.remove(filterToRemove);
}
}
newSerializedFilters = jacksonUtil.getJsonString(existingFilters);
propertiesMap.setProperty(DATASET_FILTER_PROPERTY, newSerializedFilters);
}
@Override
public void undo()
{
dataset.getPropertiesMap().setProperty(DATASET_FILTER_PROPERTY, oldSerializedFilters);
}
@Override
public void redo()
{
dataset.getPropertiesMap().setProperty(DATASET_FILTER_PROPERTY, newSerializedFilters);
}
}