top.marchand.maven.gaulois.compiler.utils.GauloisConfigScanner Maven / Gradle / Ivy
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A maven plugin to compile gaulois-pipe config files and XSLT
/**
* Copyright © 2017, Christophe Marchand
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package top.marchand.maven.gaulois.compiler.utils;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.xml.transform.Source;
import javax.xml.transform.TransformerException;
import javax.xml.transform.URIResolver;
import javax.xml.transform.sax.SAXSource;
import org.apache.commons.io.FilenameUtils;
import org.apache.maven.plugin.logging.Log;
import org.xml.sax.Attributes;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.ext.DefaultHandler2;
/**
*
* @author Christophe Marchand
*/
public class GauloisConfigScanner extends DefaultHandler2 {
public static final String GAULOIS_NS = "http://efl.fr/chaine/saxon-pipe/config";
boolean hasError = false;
private final List xslDirectories;
private final File outputDirectory;
private final Map xslToCompile;
private final List errors;
private final URIResolver resolver;
private int uriErrorCount = 0;
private final Log log;
private final List classpathes;
public GauloisConfigScanner(List xslDirectories, File outputDirectory, URIResolver resolver, Log log, List classpathes) {
super();
this.xslDirectories=xslDirectories;
this.outputDirectory=outputDirectory;
this.resolver=resolver;
this.log=log;
this.classpathes = classpathes;
xslToCompile = new HashMap<>();
errors = new ArrayList<>();
}
@Override
public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException {
super.startElement(uri, localName, qName, attributes);
if(GAULOIS_NS.equals(uri) && "xslt".equals(localName)) {
String href = attributes.getValue("href");
log.debug("found XSL: "+href);
if(!href.startsWith("cp:/")) {
try {
Source source = resolver.resolve(href, "");
log.debug("source is a "+source.getClass().getName());
String systemId = source.getSystemId();
String xslPath = systemId.contains("!") ? systemId.substring(systemId.indexOf("!")+1) : systemId;
log.debug("xslPath="+xslPath);
String shortPath = FilenameUtils.getPath(xslPath);
log.debug("shortPath="+shortPath);
String baseName = FilenameUtils.getBaseName(xslPath);
log.debug("baseName="+baseName);
String targetPath = shortPath.concat(baseName).concat(".sef");
log.debug("targetPath="+targetPath);
File targetXsl = new File(outputDirectory, targetPath);
xslToCompile.put(source, targetXsl);
} catch(TransformerException | NullPointerException ex) {
hasError = true;
if(uriErrorCount<10) {
errors.add(href+" is an invalid URI. Only URI based on cp:/ protocol are supported, or the one that can be resolved via the catalog");
uriErrorCount++;
}
}
} else if(href.startsWith("cp:/")) {
String path = href.substring(4);
log.debug("searching for xsl "+path);
boolean found = false;
for(File dir:xslDirectories) {
File xsl = new File(dir, path);
if(xsl.exists() && xsl.isFile()) {
log.debug("\tfound at "+xsl.getAbsolutePath());
String shortPath = FilenameUtils.getPath(path);
String baseName = FilenameUtils.getBaseName(path);
String targetPath = shortPath.concat(baseName).concat(".sef");
File targetXsl = new File(outputDirectory, targetPath);
try {
InputSource is = new InputSource(new FileInputStream(xsl));
String systemID = xsl.toURI().toString();
is.setPublicId(systemID);
SAXSource ss = new SAXSource(is);
ss.setSystemId(systemID);
xslToCompile.put(ss, targetXsl);
found = true;
} catch(FileNotFoundException ex) {
// is it really possible ? We have checked xsl.exists()
// so ignore it
}
}
if(found) break;
}
if(!found) {
// could it be referenced from catalog ?
try {
Source source = resolver.resolve(href, "");
if(source!=null) {
log.debug("source is a "+source.getClass().getName());
String systemId = source.getSystemId();
String xslPath = systemId.contains("!") ? systemId.substring(systemId.indexOf("!")+1) : systemId;
log.debug("xslPath="+xslPath);
String shortPath = FilenameUtils.getPath(xslPath);
log.debug("shortPath="+shortPath);
String baseName = FilenameUtils.getBaseName(xslPath);
log.debug("baseName="+baseName);
String targetPath = shortPath.concat(baseName).concat(".sef");
log.debug("targetPath="+targetPath);
File targetXsl = new File(outputDirectory, targetPath);
xslToCompile.put(source, targetXsl);
found = true;
}
} catch(TransformerException | NullPointerException ex) {
hasError = true;
if(uriErrorCount<10) {
errors.add(href+" is an invalid URI. Only URI based on cp:/ protocol are supported, or the one that can be resolved via the catalog");
uriErrorCount++;
}
}
}
if(!found) {
// search throw classpath
log.debug("searching for "+href+" in classpath");
for(String cp: classpathes) {
try {
String systemId = cp;
if(systemId.endsWith(".jar")) systemId = "jar:"+systemId;
systemId = systemId + "!"+href.substring(3);
URL url = new URL(systemId);
InputStream is = url.openStream();
if(is!=null) {
log.debug("systemId="+systemId);
String xslPath = systemId.contains("!") ? systemId.substring(systemId.indexOf("!")+1) : systemId;
log.debug("xslPath="+xslPath);
String shortPath = FilenameUtils.getPath(xslPath);
log.debug("shortPath="+shortPath);
String baseName = FilenameUtils.getBaseName(xslPath);
log.debug("baseName="+baseName);
String targetPath = shortPath.concat(baseName).concat(".sef");
log.debug("targetPath="+targetPath);
File targetXsl = new File(outputDirectory, targetPath);
Source source = new SAXSource(new InputSource(is));
source.setSystemId(systemId);
xslToCompile.put(source, targetXsl);
found = true;
}
} catch(FileNotFoundException ex) {
// we do nothing, we want to ignore this exception
} catch (IOException ex) {
log.warn("while searching "+href+"in classpath:",ex);
}
}
}
if(!found) {
log.warn(href+" could not be found ! It won't be compiled");
}
}
}
}
public boolean hasErrors() { return hasError; }
public List getErrorMessages() { return errors; }
public Map getXslToCompile() { return xslToCompile; }
}
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