package com.epam.wilma.webapp.stub.response.formatter.xsl;
/*==========================================================================
Copyright 2013-2017 EPAM Systems
This file is part of Wilma.
Wilma 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.
Wilma 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 Wilma. If not, see <http://www.gnu.org/licenses/>.
===========================================================================*/
import java.io.InputStream;
import javax.xml.transform.Source;
import net.sf.saxon.s9api.Processor;
import net.sf.saxon.s9api.SaxonApiException;
import net.sf.saxon.s9api.XsltCompiler;
import net.sf.saxon.s9api.XsltExecutable;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import com.epam.wilma.common.saxon.helper.SaxonCompilerErrorListener;
import com.epam.wilma.common.stream.helper.StreamSourceFactory;
/**
* Compiles an xsl file.
* @author Tunde_Kovacs
*
*/
@Component
public class XslCompiler {
@Autowired
private StreamSourceFactory streamSourceFactory;
@Autowired
private SaxonCompilerErrorListener errorListener;
/**
* Compiles an xsl file.
* @param inputStream the xsl file as {@link InputStream}
* @param processor the {@link Processor} that provides the compiler
* @return an {@link XsltExecutable} that will be used further in the xsl transformation process
* @throws SaxonApiException it is thrown if an exception occurs during the compilation
*/
public XsltExecutable compileXsl(final InputStream inputStream, final Processor processor) throws SaxonApiException {
XsltCompiler xsltCompiler = processor.newXsltCompiler();
Source xslSource = streamSourceFactory.createStreamSource(inputStream);
xsltCompiler.setErrorListener(errorListener);
XsltExecutable xsltExecutable = xsltCompiler.compile(xslSource);
return xsltExecutable;
}
}