filebot/source/net/sourceforge/tuned/XPathUtil.java

63 lines
1.4 KiB
Java

package net.sourceforge.tuned;
import java.util.ArrayList;
import java.util.List;
import javax.xml.xpath.XPath;
import javax.xml.xpath.XPathConstants;
import javax.xml.xpath.XPathFactory;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
public class XPathUtil {
public static Node selectNode(String xpath, Object node) {
try {
XPath xp = XPathFactory.newInstance().newXPath();
return (Node) xp.evaluate(xpath, node, XPathConstants.NODE);
} catch (Exception e) {
throw new RuntimeException(e);
}
}
public static Node selectFirstNode(String xpath, Object node) {
return selectNodes(xpath, node).get(0);
}
public static List<Node> selectNodes(String xpath, Object node) {
try {
XPath xp = XPathFactory.newInstance().newXPath();
NodeList nodeList = (NodeList) xp.evaluate(xpath, node, XPathConstants.NODESET);
ArrayList<Node> nodes = new ArrayList<Node>(nodeList.getLength());
for (int i = 0; i < nodeList.getLength(); i++) {
nodes.add(nodeList.item(i));
}
return nodes;
} catch (Exception e) {
throw new RuntimeException(e);
}
}
public static String selectString(String xpath, Object node) {
try {
XPath xp = XPathFactory.newInstance().newXPath();
return ((String) xp.evaluate(xpath, node, XPathConstants.STRING)).trim();
} catch (Exception e) {
throw new RuntimeException(e);
}
}
}