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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.export;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.text.MessageFormat;
import net.sf.jasperreports.engine.JRRuntimeException;
/**
* @author Teodor Danciu ([email protected])
*/
public class FileXmlResourceHandler implements XmlResourceHandler
{
public static final String EXCEPTION_MESSAGE_KEY_RESOURCES_DIRECTORY_NOT_SPECIFIED = "export.xml.resources.directory.not.specified";
/**
*
*/
private File parentFolder;
private String pathPattern;
/**
*
*/
public FileXmlResourceHandler(File parentFolder, String pathPattern)
{
this.parentFolder = parentFolder;
this.pathPattern = pathPattern;
}
/**
*
*/
public FileXmlResourceHandler(File parentFolder)
{
this(parentFolder, null);
}
@Override
public String getResourceSource(String id)
{
if (pathPattern == null)
{
return id;
}
return MessageFormat.format(pathPattern, new Object[]{id});
}
@Override
public void handleResource(String id, byte[] data)
{
ensureParentFolder();
try (
OutputStream os =
new BufferedOutputStream(
new FileOutputStream(
new File(parentFolder, id)
)
)
)
{
os.write(data);
}
catch (IOException e)
{
throw new JRRuntimeException(e);
}
}
private void ensureParentFolder()
{
if (parentFolder == null)
{
throw
new JRRuntimeException(
EXCEPTION_MESSAGE_KEY_RESOURCES_DIRECTORY_NOT_SPECIFIED,
(Object[])null);
}
if (!parentFolder.exists())
{
parentFolder.mkdir();
}
}
}