273 lines
8.5 KiB
Java
273 lines
8.5 KiB
Java
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/* ====================================================================
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* The Apache Software License, Version 1.1
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*
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* Copyright (c) 2002 The Apache Software Foundation. All rights
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* reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. The end-user documentation included with the redistribution,
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* if any, must include the following acknowledgment:
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* "This product includes software developed by the
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* Apache Software Foundation (http://www.apache.org/)."
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* Alternately, this acknowledgment may appear in the software itself,
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* if and wherever such third-party acknowledgments normally appear.
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*
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* 4. The names "Apache" and "Apache Software Foundation" and
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* "Apache POI" must not be used to endorse or promote products
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* derived from this software without prior written permission. For
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* written permission, please contact apache@apache.org.
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*
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* 5. Products derived from this software may not be called "Apache",
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* "Apache POI", nor may "Apache" appear in their name, without
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* prior written permission of the Apache Software Foundation.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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* ====================================================================
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*
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* This software consists of voluntary contributions made by many
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* individuals on behalf of the Apache Software Foundation. For more
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* information on the Apache Software Foundation, please see
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* <http://www.apache.org/>.
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*/
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import java.io.InputStream;
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import java.io.FileInputStream;
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import java.io.BufferedInputStream;
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import java.io.OutputStream;
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import java.io.FileOutputStream;
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import java.io.Writer;
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import java.io.PrintWriter;
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import java.io.FileWriter;
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import java.io.BufferedWriter;
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import java.io.FileWriter;
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import java.io.IOException;
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import java.util.ArrayList;
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import org.w3c.dom.NodeList;
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import org.w3c.dom.Node;
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import org.w3c.dom.Element;
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import org.w3c.dom.Attr;
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import org.w3c.dom.Document;
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import org.w3c.dom.NamedNodeMap;
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import org.w3c.tidy.Tidy;
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import org.apache.tools.ant.BuildException;
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import org.apache.tools.ant.taskdefs.Property;
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/**
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* Task to ask property values to the user. Uses current value as default.
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*
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* @author <a href="mailto:barozzi@nicolaken.com">Nicola Ken Barozzi</a>
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* @created 14 January 2002
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*/
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public class JTidyTask
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extends org.apache.tools.ant.Task
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{
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private String src;
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private String dest;
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private String log;
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private Tidy tidy;
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private String warn = "false";
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private String summary = "false";
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PrintWriter pw;
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/**
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* Constructor.
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*/
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public JTidyTask()
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{
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super();
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}
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/**
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* Initializes the task.
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*/
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public void init()
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{
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super.init();
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// Setup an instance of Tidy.
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tidy = new Tidy();
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tidy.setXmlOut(true);
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tidy.setXHTML(true);
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tidy.setDropFontTags(true);
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tidy.setLiteralAttribs(true);
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tidy.setMakeClean(true);
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tidy.setShowWarnings(Boolean.getBoolean(warn));
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tidy.setQuiet(!Boolean.getBoolean(summary));
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}
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/**
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* Run the task.
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* @exception org.apache.tools.ant.BuildException The exception raised during task execution.
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*/
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public void execute()
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throws org.apache.tools.ant.BuildException
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{
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try
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{
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PrintWriter pw = new PrintWriter(new FileWriter(log));
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tidy.setErrout(pw);
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// Extract the document using JTidy and stream it.
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BufferedInputStream in =
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new BufferedInputStream(new FileInputStream(src));
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// FileOutputStream out = new FileOutputStream(dest);
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PrintWriter out =
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new PrintWriter(new FileWriter(dest));
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// using null as output to get dom so to remove duplicate attributes
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org.w3c.dom.Document domDoc = tidy.parseDOM(in, null);
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domDoc.normalize();
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stripDuplicateAttributes(domDoc, null);
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org.apache.xml.serialize.OutputFormat format =
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new org.apache.xml.serialize.OutputFormat();
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format.setIndenting(true);
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format.setEncoding("ISO-8859-1");
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format.setPreserveSpace(true);
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format.setLineSeparator("\n");
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org.apache.xml.serialize.XMLSerializer serializer =
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new org.apache.xml.serialize.XMLSerializer(out, format);
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serializer.serialize(domDoc);
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out.flush();
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out.close();
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in.close();
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pw.flush();
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pw.close();
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}
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catch (IOException ioe)
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{
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throw new BuildException(ioe);
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}
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}
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public void setSrc(String src)
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{
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this.src = src;
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}
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public void setDest(String dest)
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{
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this.dest = dest;
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}
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public void setLog(String log)
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{
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this.log = log;
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}
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public void setWarn(String warn)
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{
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this.warn = warn;
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}
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public void setSummary(String summary)
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{
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this.summary = summary;
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}
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// using parent because jtidy dom is bugged, cannot get parent or delete child
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public static void stripDuplicateAttributes(Node node, Node parent)
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{
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// The output depends on the type of the node
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switch (node.getNodeType())
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{
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case Node.DOCUMENT_NODE :
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{
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Document doc = ( Document ) node;
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Node child = doc.getFirstChild();
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while (child != null)
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{
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stripDuplicateAttributes(child, node);
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child = child.getNextSibling();
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}
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break;
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}
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case Node.ELEMENT_NODE :
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{
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Element elt = ( Element ) node;
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NamedNodeMap attrs = elt.getAttributes();
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ArrayList nodesToRemove = new ArrayList();
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int nodesToRemoveNum = 0;
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for (int i = 0; i < attrs.getLength(); i++)
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{
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Node a = attrs.item(i);
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for (int j = 0; j < attrs.getLength(); j++)
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{
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Node b = attrs.item(j);
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// if there are two attributes with same name
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if ((i != j)
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&& (a.getNodeName().equals(b.getNodeName())))
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{
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nodesToRemove.add(b);
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nodesToRemoveNum++;
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}
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}
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}
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for (int i = 0; i < nodesToRemoveNum; i++)
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{
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org.w3c.dom.Attr nodeToDelete =
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( org.w3c.dom.Attr ) nodesToRemove.get(i);
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org.w3c.dom.Element nodeToDeleteParent =
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( org.w3c.dom
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.Element ) node; // nodeToDelete.getParentNode();
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nodeToDeleteParent.removeAttributeNode(nodeToDelete);
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}
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nodesToRemove.clear();
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Node child = elt.getFirstChild();
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while (child != null)
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{
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stripDuplicateAttributes(child, node);
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child = child.getNextSibling();
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}
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break;
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}
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default :
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// do nothing
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break;
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}
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}
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}
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