Clover coverage report - groovy - 1.0-beta-7
Coverage timestamp: Wed Sep 29 2004 16:55:52 BST
file stats: LOC: 341   Methods: 19
NCLOC: 253   Classes: 1
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 Source file Conditionals Statements Methods TOTAL
DomToGroovy.java 0% 0% 0% 0%
coverage
 1   
 /*
 2   
  $Id: DomToGroovy.java,v 1.5 2003/11/04 12:00:48 jstrachan Exp $
 3   
 
 4   
  Copyright 2003 (C) James Strachan and Bob Mcwhirter. All Rights Reserved.
 5   
 
 6   
  Redistribution and use of this software and associated documentation
 7   
  ("Software"), with or without modification, are permitted provided
 8   
  that the following conditions are met:
 9   
 
 10   
  1. Redistributions of source code must retain copyright
 11   
     statements and notices.  Redistributions must also contain a
 12   
     copy of this document.
 13   
 
 14   
  2. Redistributions in binary form must reproduce the
 15   
     above copyright notice, this list of conditions and the
 16   
     following disclaimer in the documentation and/or other
 17   
     materials provided with the distribution.
 18   
 
 19   
  3. The name "groovy" must not be used to endorse or promote
 20   
     products derived from this Software without prior written
 21   
     permission of The Codehaus.  For written permission,
 22   
     please contact info@codehaus.org.
 23   
 
 24   
  4. Products derived from this Software may not be called "groovy"
 25   
     nor may "groovy" appear in their names without prior written
 26   
     permission of The Codehaus. "groovy" is a registered
 27   
     trademark of The Codehaus.
 28   
 
 29   
  5. Due credit should be given to The Codehaus -
 30   
     http://groovy.codehaus.org/
 31   
 
 32   
  THIS SOFTWARE IS PROVIDED BY THE CODEHAUS AND CONTRIBUTORS
 33   
  ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
 34   
  NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
 35   
  FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
 36   
  THE CODEHAUS OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
 37   
  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 38   
  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 39   
  SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 40   
  HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 41   
  STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 42   
  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 43   
  OF THE POSSIBILITY OF SUCH DAMAGE.
 44   
 
 45   
  */
 46   
 package org.codehaus.groovy.tools.xml;
 47   
 
 48   
 import groovy.util.IndentPrinter;
 49   
 
 50   
 import java.io.PrintWriter;
 51   
 import java.util.HashMap;
 52   
 import java.util.Map;
 53   
 
 54   
 import org.w3c.dom.Attr;
 55   
 import org.w3c.dom.Comment;
 56   
 import org.w3c.dom.Document;
 57   
 import org.w3c.dom.Element;
 58   
 import org.w3c.dom.NamedNodeMap;
 59   
 import org.w3c.dom.Node;
 60   
 import org.w3c.dom.NodeList;
 61   
 import org.w3c.dom.ProcessingInstruction;
 62   
 import org.w3c.dom.Text;
 63   
 
 64   
 /**
 65   
  * A SAX handler for turning XML into Groovy scripts
 66   
  * 
 67   
  * @author <a href="mailto:james@coredevelopers.net">James Strachan</a>
 68   
  * @version $Revision: 1.5 $
 69   
  */
 70   
 public class DomToGroovy {
 71   
 
 72   
     private IndentPrinter out;
 73   
 
 74  0
     public DomToGroovy(PrintWriter out) {
 75  0
         this(new IndentPrinter(out));
 76   
     }
 77   
 
 78  0
     public DomToGroovy(IndentPrinter out) {
 79  0
         this.out = out;
 80   
     }
 81   
 
 82   
 
 83  0
     public void print(Document document) {
 84  0
         printChildren(document, new HashMap());
 85   
     }
 86   
 
 87   
     // Implementation methods
 88   
     //-------------------------------------------------------------------------
 89  0
     protected void print(Node node, Map namespaces, boolean endWithComma) {
 90  0
         switch (node.getNodeType()) {
 91   
             case Node.ELEMENT_NODE :
 92  0
                 printElement((Element) node, namespaces, endWithComma);
 93  0
                 break;
 94   
             case Node.PROCESSING_INSTRUCTION_NODE :
 95  0
                 printPI((ProcessingInstruction) node, endWithComma);
 96  0
                 break;
 97   
             case Node.TEXT_NODE :
 98  0
                 printText((Text) node, endWithComma);
 99  0
                 break;
 100   
             case Node.COMMENT_NODE :
 101  0
                 printComment((Comment) node, endWithComma);
 102  0
                 break;
 103   
         }
 104   
     }
 105   
 
 106  0
     protected void printElement(Element element, Map namespaces, boolean endWithComma) {
 107  0
         namespaces = defineNamespaces(element, namespaces);
 108   
 
 109  0
         element.normalize();
 110  0
         printIndent();
 111   
 
 112  0
         String prefix = element.getPrefix();
 113  0
         if (prefix != null && prefix.length() > 0) {
 114  0
             print(prefix);
 115  0
             print(".");
 116   
         }
 117  0
         print(getLocalName(element));
 118   
 
 119  0
         boolean hasAttributes = printAttributes(element);
 120   
 
 121  0
         NodeList list = element.getChildNodes();
 122  0
         int length = list.getLength();
 123  0
         if (length == 0) {
 124  0
             printEnd("", endWithComma);
 125   
         }
 126   
         else {
 127  0
             Node node = list.item(0);
 128  0
             if (length == 1 && node instanceof Text) {
 129  0
                 Text textNode = (Text) node;
 130  0
                 String text = getTextNodeData(textNode);
 131  0
                 if (hasAttributes) {
 132  0
                     print(" [\"");
 133  0
                     print(text);
 134  0
                     printEnd("\"]", endWithComma);
 135   
                 }
 136   
                 else {
 137  0
                     print("(\"");
 138  0
                     print(text);
 139  0
                     printEnd("\")", endWithComma);
 140   
                 }
 141   
             }
 142  0
             else if (mixedContent(list)) {
 143  0
                 println(" [");
 144  0
                 out.incrementIndent();
 145  0
                 for (node = element.getFirstChild(); node != null; node = node.getNextSibling()) {
 146  0
                     boolean useComma = node.getNextSibling() != null;
 147  0
                     print(node, namespaces, useComma);
 148   
                 }
 149  0
                 out.decrementIndent();
 150  0
                 printIndent();
 151  0
                 printEnd("]", endWithComma);
 152   
             }
 153   
             else {
 154  0
                 println(" {");
 155  0
                 out.incrementIndent();
 156  0
                 printChildren(element, namespaces);
 157  0
                 out.decrementIndent();
 158  0
                 printIndent();
 159  0
                 printEnd("}", endWithComma);
 160   
             }
 161   
         }
 162   
     }
 163   
 
 164  0
     protected void printPI(ProcessingInstruction instruction, boolean endWithComma) {
 165  0
         printIndent();
 166  0
         print("xml.pi('");
 167  0
         print(instruction.getTarget());
 168  0
         print("', '");
 169  0
         print(instruction.getData());
 170  0
         printEnd("');", endWithComma);
 171   
     }
 172   
 
 173  0
     protected void printComment(Comment comment, boolean endWithComma) {
 174  0
         String text = comment.getData().trim();
 175  0
         if (text.length() >0) {
 176  0
             printIndent();
 177  0
             print("/* ");
 178  0
             print(text);
 179  0
             printEnd(" */", endWithComma);
 180   
         }
 181   
     }
 182   
 
 183  0
     protected void printText(Text node, boolean endWithComma) {
 184  0
         String text = getTextNodeData(node);
 185  0
         if (text.length() > 0) {
 186  0
             printIndent();
 187   
             //            print("xml.append('");
 188   
             //            print(text);
 189   
             //            println("');");
 190  0
             print("\"");
 191  0
             print(text);
 192  0
             printEnd("\"", endWithComma);
 193   
         }
 194   
     }
 195   
 
 196  0
     protected Map defineNamespaces(Element element, Map namespaces) {
 197  0
         Map answer = null;
 198  0
         String prefix = element.getPrefix();
 199  0
         if (prefix != null && prefix.length() > 0 && !namespaces.containsKey(prefix)) {
 200  0
             answer = new HashMap(namespaces);
 201  0
             defineNamespace(answer, prefix, element.getNamespaceURI());
 202   
         }
 203  0
         NamedNodeMap attributes = element.getAttributes();
 204  0
         int length = attributes.getLength();
 205  0
         for (int i = 0; i < length; i++) {
 206  0
             Attr attribute = (Attr) attributes.item(i);
 207  0
             prefix = attribute.getPrefix();
 208  0
             if (prefix != null && prefix.length() > 0 && !namespaces.containsKey(prefix)) {
 209  0
                 if (answer == null) {
 210  0
                     answer = new HashMap(namespaces);
 211   
                 }
 212  0
                 defineNamespace(answer, prefix, attribute.getNamespaceURI());
 213   
             }
 214   
         }
 215  0
         return (answer != null) ? answer : namespaces;
 216   
     }
 217   
 
 218  0
     protected void defineNamespace(Map namespaces, String prefix, String uri) {
 219  0
         namespaces.put(prefix, uri);
 220  0
         if (!prefix.equals("xmlns") && !prefix.equals("xml")) {
 221  0
             printIndent();
 222  0
             print(prefix);
 223  0
             print(" = xmlns.namespace('");
 224  0
             print(uri);
 225  0
             println("')");
 226   
         }
 227   
     }
 228   
 
 229  0
     protected boolean printAttributes(Element element) {
 230  0
         boolean hasAttribute = false;
 231   
 
 232  0
         NamedNodeMap attributes = element.getAttributes();
 233  0
         int length = attributes.getLength();
 234  0
         if (length > 0) {
 235  0
             StringBuffer buffer = new StringBuffer();
 236  0
             for (int i = 0; i < length; i++) {
 237  0
                 Attr attribute = (Attr) attributes.item(i);
 238  0
                 String prefix = attribute.getPrefix();
 239  0
                 if (prefix != null && prefix.length() > 0) {
 240  0
                     if (buffer.length() > 0) {
 241  0
                         buffer.append(", ");
 242   
                     }
 243  0
                     buffer.append(prefix);
 244  0
                     buffer.append(".");
 245  0
                     buffer.append(getLocalName(attribute));
 246  0
                     buffer.append(":'");
 247  0
                     buffer.append(attribute.getValue());
 248  0
                     buffer.append("'");
 249   
                 }
 250   
             }
 251   
 
 252  0
             print("(");
 253  0
             for (int i = 0; i < length; i++) {
 254  0
                 Attr attribute = (Attr) attributes.item(i);
 255  0
                 String prefix = attribute.getPrefix();
 256  0
                 if (prefix == null || prefix.length() == 0) {
 257  0
                     if (!hasAttribute) {
 258  0
                         hasAttribute = true;
 259   
                     }
 260   
                     else {
 261  0
                         print(", ");
 262   
                     }
 263  0
                     print(getLocalName(attribute));
 264  0
                     print(":'");
 265  0
                     print(attribute.getValue());
 266  0
                     print("'");
 267   
                 }
 268   
             }
 269  0
             if (buffer.length() > 0) {
 270  0
                 if (hasAttribute) {
 271  0
                     print(", ");
 272   
                 }
 273  0
                 print("xmlns=[");
 274  0
                 print(buffer.toString());
 275  0
                 print("]");
 276  0
                 hasAttribute = true;
 277   
             }
 278  0
             print(")");
 279   
         }
 280  0
         return hasAttribute;
 281   
     }
 282   
 
 283  0
     protected String getTextNodeData(Text node) {
 284  0
         String text = node.getData().trim();
 285  0
         return text;
 286   
     }
 287   
 
 288  0
     protected boolean mixedContent(NodeList list) {
 289  0
         boolean hasText = false;
 290  0
         boolean hasElement = false;
 291  0
         for (int i = 0, size = list.getLength(); i < size; i++) {
 292  0
             Node node = list.item(i);
 293  0
             if (node instanceof Element) {
 294  0
                 hasElement = true;
 295   
             }
 296  0
             else if (node instanceof Text) {
 297  0
                 String text = getTextNodeData((Text) node);
 298  0
                 if (text.length() > 0) {
 299  0
                     hasText = true;
 300   
                 }
 301   
             }
 302   
         }
 303  0
         return hasText && hasElement;
 304   
     }
 305   
 
 306  0
     protected void printChildren(Node parent, Map namespaces) {
 307  0
         for (Node node = parent.getFirstChild(); node != null; node = node.getNextSibling()) {
 308  0
             print(node, namespaces, false);
 309   
         }
 310   
     }
 311   
 
 312  0
     protected String getLocalName(Node node) {
 313  0
         String answer = node.getLocalName();
 314  0
         if (answer == null) {
 315  0
             answer = node.getNodeName();
 316   
         }
 317  0
         return answer.trim();
 318   
     }
 319   
 
 320  0
     protected void printEnd(String text, boolean endWithComma) {
 321  0
         if (endWithComma) {
 322  0
             print(text);
 323  0
             println(",");
 324   
         }
 325   
         else {
 326  0
             println(text);
 327   
         }
 328   
     }
 329   
 
 330  0
     protected void println(String text) {
 331  0
         out.println(text);    }
 332   
 
 333  0
     protected void print(String text) {
 334  0
         out.print(text);
 335   
     }
 336   
 
 337  0
     protected void printIndent() {
 338  0
         out.printIndent();
 339   
     }
 340   
 }
 341