/*******************************************************************************
* This file is part of OpenNMS(R).
*
* Copyright (C) 2011 The OpenNMS Group, Inc.
* OpenNMS(R) is Copyright (C) 1999-2011 The OpenNMS Group, Inc.
*
* OpenNMS(R) is a registered trademark of The OpenNMS Group, Inc.
*
* OpenNMS(R) is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published
* by the Free Software Foundation, either version 3 of the License,
* or (at your option) any later version.
*
* OpenNMS(R) 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with OpenNMS(R). If not, see:
* http://www.gnu.org/licenses/
*
* For more information contact:
* OpenNMS(R) Licensing <license@opennms.org>
* http://www.opennms.org/
* http://www.opennms.com/
*******************************************************************************/
package org.opennms.web.extremecomponent.view.resolver;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.xml.transform.Result;
import javax.xml.transform.Source;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.sax.SAXResult;
import javax.xml.transform.stream.StreamSource;
import org.apache.fop.apps.FOUserAgent;
import org.apache.fop.apps.Fop;
import org.apache.fop.apps.FopFactory;
import org.apache.fop.apps.MimeConstants;
import org.extremecomponents.table.core.Preferences;
import org.extremecomponents.table.filter.ViewResolver;
public class OnmsPdfViewResolver implements ViewResolver {
public void resolveView(ServletRequest request, ServletResponse response, Preferences preferences, Object viewData) throws Exception {
InputStream is = new ByteArrayInputStream(((String) viewData).getBytes("UTF-8"));
ByteArrayOutputStream out = new ByteArrayOutputStream();
FopFactory fopFactory = FopFactory.newInstance();
fopFactory.setStrictValidation(false);
FOUserAgent foUserAgent = fopFactory.newFOUserAgent();
Fop fop = fopFactory.newFop(MimeConstants.MIME_PDF, foUserAgent, out);
TransformerFactory tfact = TransformerFactory.newInstance();
Transformer transformer = tfact.newTransformer();
Source src = new StreamSource(is);
Result res = new SAXResult(fop.getDefaultHandler());
transformer.transform(src, res);
byte[] contents = out.toByteArray();
response.setContentLength(contents.length);
response.getOutputStream().write(contents);
}
}