package nl.knaw.huygens.alexandria.textlocator;
/*
* #%L
* alexandria-main
* =======
* Copyright (C) 2015 - 2017 Huygens ING (KNAW)
* =======
* This program 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.
*
* This program 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 this program. If not, see
* <http://www.gnu.org/licenses/gpl-3.0.html>.
* #L%
*/
import java.io.IOException;
import java.io.InputStream;
import javax.xml.xpath.XPathExpressionException;
import org.apache.commons.io.IOUtils;
import nl.knaw.huygens.tei.QueryableDocument;
public class ByXPathTextLocator implements AlexandriaTextLocator {
static final String PREFIX = "xpath";
String xpath;
public String getXPath() {
return xpath;
}
public void setXPath(String xpath) {
this.xpath = xpath;
}
public AlexandriaTextLocator withXPath(String xpath) {
setXPath(xpath);
return this;
}
@Override
public String toString() {
return PREFIX + ":" + xpath;
}
@Override
public void validate(InputStream textStream) throws TextLocatorValidationException {
String xml;
try {
xml = IOUtils.toString(textStream);
QueryableDocument qDocument = QueryableDocument.createFromXml(xml, true);
String result = qDocument.evaluateXPathToString(xpath);
} catch (IOException | XPathExpressionException e) {
e.printStackTrace();
throw new TextLocatorValidationException(e.getMessage());
}
}
}