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Free Java Reporting Library
/*
* JasperReports - Free Java Reporting Library.
* Copyright (C) 2001 - 2022 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;
import java.util.Locale;
import java.util.TimeZone;
import net.sf.jasperreports.engine.DatasetFilter;
import net.sf.jasperreports.engine.EvaluationType;
import net.sf.jasperreports.engine.JRParameter;
import net.sf.jasperreports.engine.fill.DatasetFillContext;
import net.sf.jasperreports.engine.fill.JRFillDataset;
import net.sf.jasperreports.engine.util.JRDataUtils;
/**
* A dataset filter that matches String values based on substrings.
*
* @author Lucian Chirita ([email protected])
*/
public class FieldFilter implements DatasetFilter {
private String field;
private String filterValueStart;
private String filterValueEnd;
private String filterType;
private String filterTypeOperator;
private String filterPattern;
private String localeCode;
private String timeZoneId;
private DatasetFillContext context;
private Boolean isValid;
private Boolean isField;
private FilterTypesEnum filterTypeEnum;
private AbstractFieldComparator fieldComparator;
public FieldFilter() {
}
/**
* Creates a field filter.
*
*
*/
public FieldFilter(String field, String filterValueStart,
String filterValueEnd, String filterType, String filterTypeOperator) {
this.field = field;
this.filterValueStart = filterValueStart;
this.filterValueEnd = filterValueEnd;
this.filterType = filterType;
this.filterTypeOperator = filterTypeOperator;
}
@Override
public void init(DatasetFillContext context) {
this.context = context;
this.filterTypeEnum = FilterTypesEnum.getByName(filterType);
if (fieldComparator == null) {
Locale locale = getFilterLocale();
TimeZone timeZone = getFilterTimeZone();
fieldComparator = FieldComparatorFactory
.createFieldComparator(
filterTypeEnum,
filterPattern,
locale,
timeZone);
}
}
protected Locale getFilterLocale()
{
Locale locale;
if (localeCode != null)
{
locale = JRDataUtils.getLocale(localeCode);
}
else if (context.getLocale() != null)
{
locale = context.getLocale();
}
else
{
locale = Locale.getDefault();
}
return locale;
}
protected TimeZone getFilterTimeZone()
{
TimeZone timeZone;
if (timeZoneId != null)
{
timeZone = JRDataUtils.getTimeZone(timeZoneId);
}
else
{
timeZone = (TimeZone) context.getParameterValue(JRParameter.REPORT_TIME_ZONE);
}
return timeZone;
}
@Override
public boolean matches(EvaluationType evaluation) {
Object value;
if (isField == null || Boolean.TRUE.equals(isField)) {
value = context.getFieldValue(field, evaluation);
fieldComparator.setCompareToClass(((JRFillDataset)context).getFillField(field).getValueClass());
} else {
value = context.getVariableValue(field, evaluation);
fieldComparator.setCompareToClass(((JRFillDataset)context).getFillVariable(field).getValueClass());
}
fieldComparator.setValueStart(filterValueStart);
fieldComparator.setValueEnd(filterValueEnd);
fieldComparator.setCompareTo(value);
if (isValid == null) {
isValid = fieldComparator.isValid();
}
if (!isValid) {
return true;
}
return fieldComparator.compare(filterTypeOperator);
}
public String getField() {
return this.field;
}
public String getFilterValueStart() {
return filterValueStart;
}
public void setFilterValueStart(String filterValueStart) {
this.filterValueStart = filterValueStart;
}
public String getFilterValueEnd() {
return filterValueEnd;
}
public void setFilterValueEnd(String filterValueEnd) {
this.filterValueEnd = filterValueEnd;
}
public String getFilterType() {
return filterType;
}
public String getFilterTypeOperator() {
return filterTypeOperator;
}
public void setFilterTypeOperator(String filterTypeOperator) {
this.filterTypeOperator = filterTypeOperator;
}
public FilterTypesEnum getFilterTypeEnum() {
return filterTypeEnum;
}
public Boolean getIsValid() {
return isValid;
}
public void setIsValid(Boolean isValid) {
this.isValid = isValid;
}
public Boolean getIsField() {
return isField;
}
public void setIsField(Boolean isField) {
this.isField = isField;
}
public String getFilterPattern() {
return filterPattern;
}
public void setFilterPattern(String filterPattern) {
this.filterPattern = filterPattern;
}
public String getLocaleCode() {
return localeCode;
}
public void setLocaleCode(String localeCode) {
this.localeCode = localeCode;
}
public String getTimeZoneId() {
return timeZoneId;
}
public void setTimeZoneId(String timeZoneId) {
this.timeZoneId = timeZoneId;
}
}