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Free Java Reporting Library
/*
* JasperReports - Free Java Reporting Library.
* Copyright (C) 2001 - 2023 Cloud Software Group, 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.engine.base;
import java.io.Serializable;
import java.util.UUID;
import net.sf.jasperreports.engine.DefaultJasperReportsContext;
import net.sf.jasperreports.engine.JRConstants;
import net.sf.jasperreports.engine.JRExpression;
import net.sf.jasperreports.engine.JRPart;
import net.sf.jasperreports.engine.JRPropertiesHolder;
import net.sf.jasperreports.engine.JRPropertiesMap;
import net.sf.jasperreports.engine.JRRuntimeException;
import net.sf.jasperreports.engine.JRVisitable;
import net.sf.jasperreports.engine.component.ComponentKey;
import net.sf.jasperreports.engine.design.events.JRChangeEventsSupport;
import net.sf.jasperreports.engine.design.events.JRPropertyChangeSupport;
import net.sf.jasperreports.engine.part.PartComponent;
import net.sf.jasperreports.engine.part.PartComponentManager;
import net.sf.jasperreports.engine.part.PartComponentsEnvironment;
import net.sf.jasperreports.engine.part.PartEvaluationTime;
import net.sf.jasperreports.engine.util.JRCloneUtils;
/**
* A read-only {@link JRPart} implementation which is included
* in compiled reports.
*
* @author Teodor Danciu ([email protected])
*/
public class JRBasePart implements JRPart, Serializable, JRChangeEventsSupport
{
private static final long serialVersionUID = JRConstants.SERIAL_VERSION_UID;
protected UUID uuid;
private JRPropertiesMap propertiesMap;
protected JRExpression printWhenExpression;
protected JRExpression partNameExpression;
protected ComponentKey componentKey;
protected PartComponent component;
protected PartEvaluationTime evaluationTime;
protected JRBasePart()
{
}
public JRBasePart(JRPart part, JRBaseObjectFactory factory)
{
factory.put(part, this);
this.uuid = part.getUUID();
this.propertiesMap = JRPropertiesMap.getPropertiesClone(part);
this.printWhenExpression = factory.getExpression(part.getPrintWhenExpression());
this.partNameExpression = factory.getExpression(part.getPartNameExpression());
this.evaluationTime = part.getEvaluationTime();
componentKey = part.getComponentKey();
PartComponentManager manager = PartComponentsEnvironment.getInstance(DefaultJasperReportsContext.getInstance()).getManager(componentKey);
component = manager.getComponentCompiler(DefaultJasperReportsContext.getInstance()).toCompiledComponent(
part.getComponent(), factory);
if (component instanceof JRVisitable)
{
((JRVisitable) component).visit(factory);
}
}
@Override
public UUID getUUID()
{
if (uuid == null)
{
uuid = UUID.randomUUID();
}
return uuid;
}
@Override
public PartComponent getComponent()
{
return component;
}
@Override
public ComponentKey getComponentKey()
{
return componentKey;
}
@Override
public PartEvaluationTime getEvaluationTime()
{
return evaluationTime;
}
@Override
public JRExpression getPrintWhenExpression()
{
return this.printWhenExpression;
}
@Override
public JRExpression getPartNameExpression()
{
return partNameExpression;
}
@Override
public boolean hasProperties()
{
return propertiesMap != null && propertiesMap.hasProperties();
}
@Override
public JRPropertiesMap getPropertiesMap()
{
if (propertiesMap == null)
{
propertiesMap = new JRPropertiesMap();
}
return propertiesMap;
}
@Override
public JRPropertiesHolder getParentProperties()
{
return null;
}
private transient JRPropertyChangeSupport eventSupport;
@Override
public JRPropertyChangeSupport getEventSupport()
{
synchronized (this)
{
if (eventSupport == null)
{
eventSupport = new JRPropertyChangeSupport(this);
}
}
return eventSupport;
}
@Override
public Object clone()
{
JRBasePart clone = null;
try
{
clone = (JRBasePart)super.clone();
}
catch (CloneNotSupportedException e)
{
throw new JRRuntimeException(e);
}
clone.printWhenExpression = JRCloneUtils.nullSafeClone(printWhenExpression);
clone.partNameExpression = JRCloneUtils.nullSafeClone(partNameExpression);
clone.propertiesMap = JRPropertiesMap.getPropertiesClone(this);
clone.uuid = null;
clone.eventSupport = null;
return clone;
}
}