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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.export;
import java.awt.Color;
import java.lang.reflect.InvocationHandler;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.lang.reflect.Proxy;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import net.sf.jasperreports.engine.JRPropertiesUtil;
import net.sf.jasperreports.engine.JRPropertiesUtil.PropertySuffix;
import net.sf.jasperreports.engine.JRRuntimeException;
import net.sf.jasperreports.engine.JasperReportsContext;
import net.sf.jasperreports.engine.type.NamedEnum;
import net.sf.jasperreports.engine.util.ClassUtils;
import net.sf.jasperreports.engine.util.JRColorUtil;
import net.sf.jasperreports.export.annotations.ExporterProperty;
/**
* @author Teodor Danciu ([email protected])
*/
public class PropertiesDefaultsConfigurationFactory
{
/**
*
*/
private final JasperReportsContext jasperReportsContext;
/**
*
*/
public PropertiesDefaultsConfigurationFactory(JasperReportsContext jasperReportsContext)
{
this.jasperReportsContext = jasperReportsContext;
}
/**
*
*/
public C getConfiguration(final Class configurationInterface)
{
return getProxy(configurationInterface, new PropertiesDefaultsInvocationHandler());
}
/**
*
*/
private final C getProxy(Class clazz, InvocationHandler handler)
{
List> allInterfaces = new ArrayList>();
if (clazz.isInterface())
{
allInterfaces.add(clazz);
}
else
{
List> lcInterfaces = ClassUtils.getInterfaces(clazz);
allInterfaces.addAll(lcInterfaces);
}
@SuppressWarnings("unchecked")
C proxy =
(C)Proxy.newProxyInstance(
ExporterConfiguration.class.getClassLoader(),
allInterfaces.toArray(new Class[allInterfaces.size()]),
handler
);
return proxy;
}
/**
*
*/
class PropertiesDefaultsInvocationHandler implements InvocationHandler
{
/**
*
*/
public PropertiesDefaultsInvocationHandler()
{
}
@Override
public Object invoke(
Object proxy,
Method method,
Object[] args
) throws Throwable
{
return getPropertyValue(method);
}
}
/**
*
*/
protected Object getPropertyValue(Method method)
{
Object value = null;
ExporterProperty exporterProperty = method.getAnnotation(ExporterProperty.class);
if (exporterProperty != null)
{
value = getPropertyValue(jasperReportsContext, exporterProperty, method.getReturnType());
}
return value;
}
/**
*
*/
public static Object getPropertyValue(
JasperReportsContext jasperReportsContext,
ExporterProperty exporterProperty,
Class type
)
{
Object value = null;
String propertyName = exporterProperty.value();
JRPropertiesUtil propertiesUtil = JRPropertiesUtil.getInstance(jasperReportsContext);
if (String[].class.equals(type))
{
List properties = propertiesUtil.getProperties(propertyName);
if (properties != null && !properties.isEmpty())
{
String[] values = new String[properties.size()];
for(int i = 0; i < values.length; i++)
{
values[i] = properties.get(i).getValue();
}
value = values;
}
}
else if (PropertySuffix[].class.equals(type))
{
List properties = propertiesUtil.getProperties(propertyName);
if (properties != null && !properties.isEmpty())
{
value = properties.toArray(new PropertySuffix[properties.size()]);
}
}
else if (Map.class.equals(type))
{
List properties = propertiesUtil.getProperties(propertyName);
if (properties != null && !properties.isEmpty())
{
Map values = new HashMap();
for (PropertySuffix propertySuffix : properties)
{
values.put(propertySuffix.getSuffix(), propertySuffix.getValue());
}
value = values;
}
}
else
{
String strValue = propertiesUtil.getProperty(propertyName);
if (String.class.equals(type))
{
value = strValue;
}
else if (Character.class.equals(type))
{
value = JRPropertiesUtil.asCharacter(strValue);
}
else if (Integer.class.equals(type))
{
if (strValue == null)
{
if (!exporterProperty.nullDefault())
{
value = exporterProperty.intDefault();
}
}
else
{
value = JRPropertiesUtil.asInteger(strValue);
}
}
else if (Long.class.equals(type))
{
if (strValue == null)
{
if (!exporterProperty.nullDefault())
{
value = exporterProperty.longDefault();
}
}
else
{
value = JRPropertiesUtil.asLong(strValue);
}
}
else if (Float.class.equals(type))
{
if (strValue == null)
{
if (!exporterProperty.nullDefault())
{
value = exporterProperty.floatDefault();
}
}
else
{
value = JRPropertiesUtil.asFloat(strValue);
}
}
else if (Boolean.class.equals(type))
{
if (strValue == null)
{
if (!exporterProperty.nullDefault())
{
value = exporterProperty.booleanDefault();
}
}
else
{
value = JRPropertiesUtil.asBoolean(strValue);
}
}
else if (Color.class.equals(type))
{
if (strValue == null)
{
if (!exporterProperty.nullDefault())
{
strValue = exporterProperty.stringDefault();
if (strValue.trim().length() == 0)
{
throw new JRRuntimeException(
PropertiesExporterConfigurationFactory.EXCEPTION_MESSAGE_KEY_EXPORT_PROPERTIES_EMPTY_STRING_DEFAULT_NOT_SUPPORTED,
new Object[]{propertyName}
);
}
}
}
if (strValue != null)
{
value = JRColorUtil.getColor(strValue, null);
}
}
else if (NamedEnum.class.isAssignableFrom(type))
{
if (strValue == null)
{
if (!exporterProperty.nullDefault())
{
strValue = exporterProperty.stringDefault();
}
}
if (strValue != null)
{
try
{
Method byNameMethod = type.getMethod("getByName", new Class[]{String.class});
value = byNameMethod.invoke(null, strValue);
}
catch (NoSuchMethodException e)
{
throw new JRRuntimeException(e);
}
catch (InvocationTargetException e)
{
throw new JRRuntimeException(e);
}
catch (IllegalAccessException e)
{
throw new JRRuntimeException(e);
}
}
}
else
{
throw
new JRRuntimeException(
PropertiesExporterConfigurationFactory.EXCEPTION_MESSAGE_KEY_EXPORT_PROPERTIES_TYPE_NOT_SUPPORTED,
new Object[]{type});
}
}
return value;
}
}