| /* |
| * The Apache Software License, Version 1.1 |
| * |
| * |
| * Copyright (c) 1999 The Apache Software Foundation. All rights |
| * reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * 2. 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. |
| * |
| * 3. The end-user documentation included with the redistribution, |
| * if any, must include the following acknowledgment: |
| * "This product includes software developed by the |
| * Apache Software Foundation (http://www.apache.org/)." |
| * Alternately, this acknowledgment may appear in the software itself, |
| * if and wherever such third-party acknowledgments normally appear. |
| * |
| * 4. The names "Xalan" and "Apache Software Foundation" must |
| * not be used to endorse or promote products derived from this |
| * software without prior written permission. For written |
| * permission, please contact apache@apache.org. |
| * |
| * 5. Products derived from this software may not be called "Apache", |
| * nor may "Apache" appear in their name, without prior written |
| * permission of the Apache Software Foundation. |
| * |
| * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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 THE APACHE SOFTWARE FOUNDATION OR |
| * ITS CONTRIBUTORS 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. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation and was |
| * originally based on software copyright (c) 1999, Lotus |
| * Development Corporation., http://www.lotus.com. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| */ |
| // This file uses 4 space indents, no tabs. |
| |
| import java.io.FileInputStream; |
| import java.io.FileNotFoundException; |
| import org.apache.xerces.parsers.DOMParser; |
| import org.apache.xpath.XPathAPI; |
| //import org.apache.xpath.xml.FormatterToXML; |
| import org.apache.xalan.utils.TreeWalker; |
| import org.apache.xalan.utils.DOMBuilder; |
| import org.w3c.dom.Document; |
| import org.w3c.dom.Element; |
| import org.w3c.dom.DocumentFragment; |
| import org.w3c.dom.Node; |
| import org.w3c.dom.NodeList; |
| import org.w3c.dom.traversal.NodeIterator; |
| //import org.w3c.dom.NodeList; |
| import org.xml.sax.SAXException; |
| import org.xml.sax.InputSource; |
| |
| // Imported JAVA API for XML Parsing 1.0 classes |
| import javax.xml.parsers.DocumentBuilder; |
| import javax.xml.parsers.DocumentBuilderFactory; |
| import javax.xml.parsers.ParserConfigurationException; |
| |
| // Imported Serializer classes |
| import org.apache.serialize.OutputFormat; |
| import org.apache.serialize.Serializer; |
| import org.apache.serialize.SerializerFactory; |
| import org.apache.xml.serialize.transition.XMLSerializer; |
| import org.apache.xml.serialize.transition.TextSerializer; |
| |
| /** |
| * Very basic utility for applying an XPath epxression to an xml file and printing information |
| / about the execution of the XPath object and the nodes it finds. |
| * Takes 2 arguments: |
| * (1) an xml filename |
| * (2) an XPath expression to apply to the file |
| * Examples: |
| * java ApplyXPath foo.xml / |
| * java ApplyXPath foo.xml /doc/name[1]/@last |
| * @see XPathAPI |
| */ |
| public class ApplyXPath |
| { |
| protected String filename = null; |
| protected String xpath = null; |
| |
| /** Process input args and execute the XPath. */ |
| public void doMain(String[] args) |
| { |
| filename = args[0]; |
| xpath = args[1]; |
| |
| if ((filename != null) && (filename.length() > 0) |
| && (xpath != null) && (xpath.length() > 0)) |
| { |
| InputSource in; |
| try |
| { |
| in = new InputSource(new FileInputStream(filename)); |
| } |
| catch (FileNotFoundException fnf) |
| { |
| System.err.println("FileInputStream of " + filename + " threw: " + fnf.toString()); |
| fnf.printStackTrace(); |
| return; |
| } |
| Document doc = null; |
| try |
| { |
| DocumentBuilderFactory dfactory = DocumentBuilderFactory.newInstance(); |
| DocumentBuilder docBuilder = dfactory.newDocumentBuilder(); |
| doc = docBuilder.parse(in); |
| } |
| catch (ParserConfigurationException pce) |
| { |
| pce.printStackTrace(); |
| } |
| catch(Exception e1) |
| { |
| System.err.println("Parsing " + filename + " threw: " + e1.toString()); |
| e1.printStackTrace(); |
| return; |
| } |
| NodeIterator nl = null; |
| try |
| { |
| // Use the simple XPath API to select a nodeIterator. |
| nl = XPathAPI.selectNodeIterator(doc, xpath); |
| } |
| catch (Exception e2) |
| { |
| System.err.println("selectNodeIterator threw: " + e2.toString() + " perhaps your xpath didn't select any nodes"); |
| e2.printStackTrace(); |
| return; |
| } |
| XMLSerializer xmlser = new XMLSerializer(System.out, new OutputFormat()); |
| Node n = null; |
| try |
| { |
| while ((n = nl.nextNode())!= null) |
| { |
| xmlser.serializeXPathReturnNode(n); |
| } |
| } |
| catch (Exception e3) |
| { |
| e3.printStackTrace(); |
| return; |
| } |
| } |
| else |
| { |
| System.out.println("Bad input args: " + filename + ", " + xpath); |
| } |
| } |
| |
| /** Main method to run from the command line. */ |
| public static void main (String[] args) |
| { |
| if (args.length != 2) |
| { |
| System.out.println("java ApplyXPath filename.xml xpath\n" |
| + "Reads filename.xml and applies the xpath; prints the nodelist found."); |
| return; |
| } |
| ApplyXPath app = new ApplyXPath(); |
| System.out.println("<output>"); |
| app.doMain(args); |
| System.out.println("</output>"); |
| } |
| |
| } // end of class ApplyXPath |
| |