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Diffstat (limited to 'lib/Xslt.java')
| -rw-r--r-- | lib/Xslt.java | 387 |
1 files changed, 0 insertions, 387 deletions
diff --git a/lib/Xslt.java b/lib/Xslt.java deleted file mode 100644 index 59bae69b0..000000000 --- a/lib/Xslt.java +++ /dev/null @@ -1,387 +0,0 @@ -/* - * 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 acknowlegement: - * "This product includes software developed by the - * Apache Software Foundation (http://www.apache.org/)." - * Alternately, this acknowlegement may appear in the software itself, - * if and wherever such third-party acknowlegements normally appear. - * - * 4. The names "The Jakarta Project", "Tomcat", 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 names without prior written - * permission of the Apache Group. - * - * 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. For more - * information on the Apache Software Foundation, please see - * <http://www.apache.org/>. - */ - -//package org.apache.tools.ant.taskdefs; - -import org.apache.tools.ant.Task; -import java.net.*; -import java.io.*; -import java.util.*; -import org.apache.xalan.xslt.*; -import org.w3c.dom.*; -import org.xml.sax.SAXException; - - -/** - * Task to call the XSLT processor Xalan (part of xml.apache.org), which converts xml files - * from a source to an output using a stylesheet file - * - * <p> - * This task can take the following arguments: - * <ul> - * <li>infile - * <li>xsltfile - * <li>outfile - * <li>smart - * <li>dependent - * </ul> - * <p> - * Of these arguments, <b>infile, outfile</b> and <b>xsltfile</b> are required. - * <p>smart defaults to 'no'. The other allowed value is 'yes'. If smart is set to 'yes' - * <P> - * xalan is only called if either the outfile is older than the infile or the stylesheet - * or the outfile doesn't exist. - * <P> - * <p>dependent defaults to 'none'. Other possible values: a comma delimited list of file names - * which date is checked against the output file. This way you can name files which, if - * they have been modified, initiate a restart of the xslt process, like external entities etc. - * <p> - * @author Fotis Jannidis <a href="mailto:fotis@jannidis.de">fotis@jannidis.de</a> - * @author Kelly A. Campbell <a href="mailto:camk@camk.net">camk@camk.net</a> - */ - - -public class Xslt extends Task { - private String infile, outfile, xsltfile, mergefile; - private String smart = "no"; //defaults to do conversion everytime task is called - private String dependent = "none"; //defaults to no dependencies - private boolean startXslt = false; - - - - /** - * Sets the input file - * - */ - public void setInfile (String infile) { - this.infile = infile; - } - - public void setMergefile (String mergefile) { - this.mergefile = mergefile; - } - - /** - * Sets the stylesheet file - * - */ - public void setXsltfile (String xsltfile) { - this.xsltfile = xsltfile; - } - - /** - * Sets the output file - * - */ - public void setOutfile (String outfile) { - this.outfile = outfile; - } - - /** - * Sets the value for smart - * - * @param option valid values: - * <ul> - * <li>yes: check whether output file is older than input or stylesheet - * <li>no: (default) do conversion everytime task is called - * </ul> - */ - public void setSmart (String smart) { - this.smart = smart; - } - - /** - * Sets the value for dependent - * - * @param option valid values: - * <ul> - * <li>none: (default) - * <li>comma delimited list of files whose existence and date is checked - * against the output file - * </ul> - */ - public void setDependent (String dependent) { - this.dependent = dependent; - } - - - /** - * Builds a document from the given file, merging the mergefile onto the end of the root node - */ - private org.w3c.dom.Document buildDocument(String xmlFile) - throws IOException, SAXException { - try { - - javax.xml.parsers.DocumentBuilder docBuilder = - javax.xml.parsers.DocumentBuilderFactory.newInstance(). - newDocumentBuilder(); - Document doc = docBuilder.parse(new FileInputStream(xmlFile)); - - if (mergefile != null && !mergefile.equals("")) { - - File mergefileF = new File(mergefile); - - Document mergedoc = - docBuilder.parse(new FileInputStream(mergefileF)); - Node mergenode = - doc.importNode(mergedoc.getDocumentElement(), true); - doc.getDocumentElement().appendChild(mergenode); - } - - return doc; - } catch (javax.xml.parsers.ParserConfigurationException e) { - System.out.println("Task xslt - SAX ERROR:\n " + - e.getMessage()); - } - return null; - } - - - /** - * Calls Xalan and does the transformation - * - */ - private void transform(String xmlSourceURL, String xslURL, - String outputURL) throws java.io.IOException, - java.net.MalformedURLException, org.xml.sax.SAXException { - StylesheetRoot stylesheet = StylesheetCache.getStylesheet(xsltfile); - - org.w3c.dom.Document source = buildDocument(infile); - - - // Create the 3 objects the XSLTProcessor needs to perform the transformation. - org.apache.xalan.xslt.XSLTInputSource xmlSource = - new org.apache.xalan.xslt.XSLTInputSource (source); - org.apache.xalan.xslt.XSLTResultTarget xmlResult = - new org.apache.xalan.xslt.XSLTResultTarget (outfile); - - // Perform the transformation. - System.out.println("============================"); - System.out.println("xslt \nin: " + infile + "\nstyle: " + - xsltfile + "\nout: " + outfile); - System.out.println("============================"); - - stylesheet.process(XSLTProcessorFactory.getProcessor(new org.apache.xalan.xpath.xdom.XercesLiaison()), - xmlSource, xmlResult); - - } //end transform - - /** - * Catches the errors transform() can throw and - * returns meaningfull error messages - */ - private void startTransform () { - try { - transform (infile, xsltfile, outfile); - } catch (org.xml.sax.SAXException saxerror) { - System.out.println("Task xslt - SAX ERROR:\n " + saxerror); - } - catch (MalformedURLException urlerror) { - System.out.println("Task xslt - URL ERROR:\n " + urlerror); - } - catch (IOException ioerror) { - System.out.println("Task xslt - IO ERROR:\n " + ioerror); - } - } //end startTransform - - /** - * Checks for existence of output file and compares - * dates with input and stylesheet file - */ - private boolean smartCheck (File outfileF, - long outfileLastModified, File infileF, File xsltfileF) { - - if (outfileF.exists()) { - //checks whether output file is older than input file or xslt stylesheet file - if ((outfileLastModified < infileF.lastModified()) | - (outfileLastModified < xsltfileF.lastModified())) { - return true; - } - } else { - //if output file does not exist, start xslt process - return true; - } - return false; - } //end smartCheck - - /** - * Checks for existence and date of dependent files - * This could be folded together with smartCheck by using - * a general routine but it wouldn't be as fast as now - */ - private boolean dependenciesCheck(File outfileF, - long outfileLastModified) { - String dependentFileName; - File dependentFile; - StringTokenizer tokens = new StringTokenizer(dependent, ","); - while (tokens.hasMoreTokens()) { - dependentFileName = (String) tokens.nextToken(); - dependentFile = new File (dependentFileName); - //check: does dependent file exist - if (dependentFile.exists()) { - //check dates - if ((outfileLastModified < dependentFile.lastModified())) { - return true; - } - } else { - System.err.println( - "Task xslt - ERROR in attribute 'dependent':\n file " + - dependentFileName + " does not exist."); - } - } - return false; - } //end dependenciesCheck - - /** - * Main method, which is called by ant. - * Checks for the value of smart and calls startTransform accordingly - */ - public void execute () throws org.apache.tools.ant.BuildException { - - File outfileF = new File (outfile); - File infileF = new File(infile); - File xsltfileF = new File (xsltfile); - long outfileLastModified = outfileF.lastModified(); - boolean startFileExist = true; - - //checks whether input and stylesheet exist. - //this could be left to the parser, but this solution does make problems if smart is set to yes - if (!infileF.exists()) { - System.err.println( - "Task xslt - ERROR:\n Input file " + infile + - " does not exist!"); - startFileExist = false; - } else if (!xsltfileF.exists()) { - System.err.println( - "Task xslt - ERROR:\n Stylesheet file " + - xsltfile + " does not exist!"); - startFileExist = false; - } - - //checks attribute 'smart' - if (smart.equals("no")) { - startXslt = true; - //if attribute smart = 'yes' - } else if (smart.equals("yes")) { - startXslt = smartCheck (outfileF, outfileLastModified, - infileF, xsltfileF); - //checks dependent files against output file, makes only sense if smartCheck returns false - if (!dependent.equals("none") & (startXslt == false)) { - startXslt = - dependenciesCheck(outfileF, outfileLastModified); - } - //returns error message, if smart has another value as 'yes' or 'no' - } else { - System.err.println("Task xslt - ERROR: Allowed values for the attribute smart are 'yes' or 'no'"); - } - if (startFileExist & startXslt) { - startTransform(); - } - } //end execute - - //quick access for debugging - //usage XSLT infile xsltfile outfile (smart is 'yes') - /* - public static void main (String args[]) { - Xslt xslt = new Xslt(); - xslt.setInfile(args[0]); - xslt.setXsltfile(args[1]); - xslt.setOutfile(args[2]); - xslt.setSmart("yes"); - xslt.setDependent("test1,test2"); - xslt.execute(); -} */ - - /** - * Cache for stylesheets we've already processed - */ - protected static class StylesheetCache { - /** Cache of compiled stylesheets (filename, StylesheetRoot) */ - private static Hashtable _stylesheetCache = new Hashtable(); - - /** - * Returns a compiled StylesheetRoot object for a given filename - */ - public static StylesheetRoot getStylesheet(String xsltFilename) - throws org.xml.sax.SAXException { - if (_stylesheetCache.containsKey(xsltFilename)) { - return (StylesheetRoot)_stylesheetCache.get(xsltFilename); - } - - // Use XSLTProcessor to instantiate an XSLTProcessor. - org.apache.xalan.xslt.XSLTProcessor processor = - org.apache.xalan.xslt.XSLTProcessorFactory.getProcessor( - new org.apache.xalan.xpath.xdom.XercesLiaison()); - - - org.apache.xalan.xslt.XSLTInputSource xslSheet = - new org.apache.xalan.xslt.XSLTInputSource ( - xsltFilename); - - // Perform the transformation. - System.out.println("****************************"); - System.out.println("xslt compile \nin: " + xsltFilename); - System.out.println("****************************"); - - StylesheetRoot compiledSheet = - processor.processStylesheet(xslSheet); - - _stylesheetCache.put(xsltFilename, compiledSheet); - return compiledSheet; - } - } - - - -} |