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   1 /*
   2  * Copyright (c) 2004 Christopher Lenz and others
   3  * All rights reserved. This program and the accompanying materials
   4  * are made available under the terms of the Common Public License v1.0
   5  * which accompanies this distribution, and is available at
   6  * http://www.eclipse.org/legal/cpl-v10.html
   7  *
   8  * Contributors:
   9  *     Christopher Lenz - initial API
  10  *
  11  * $Id: XMLDocument.java,v 1.2 2006-10-21 23:13:43 pombredanne Exp $
  12  */
  13
  14 package net.sourceforge.phpeclipse.xml.core.internal.model;
  15
  16 import net.sourceforge.phpeclipse.core.model.SourceReference;
  17 import net.sourceforge.phpeclipse.xml.core.internal.parser.XMLParser;
  18 import net.sourceforge.phpeclipse.xml.core.model.IXMLDocument;
  19 import net.sourceforge.phpeclipse.xml.core.model.IXMLElement;
  20 import net.sourceforge.phpeclipse.xml.core.parser.IProblemCollector;
  21 import net.sourceforge.phpeclipse.xml.core.parser.IXMLParser;
  22
  23 import org.eclipse.core.resources.IFile;
  24 import org.eclipse.jface.text.DocumentEvent;
  25 import org.eclipse.jface.text.IDocument;
  26 import org.eclipse.jface.text.IDocumentListener;
  27
  28 /**
  29  *
  30  */
  31 public class XMLDocument extends SourceReference implements IXMLDocument,
  32                 IDocumentListener {
  33         // Instance Variables ------------------------------------------------------
  34
  35         private IXMLElement root;
  36
  37         private String systemId;
  38
  39         private Object dirtyLock = new Object();
  40
  41         private boolean dirty = true;
  42
  43         // Constructors ------------------------------------------------------------
  44
  45         public XMLDocument(IDocument document, String systemId) {
  46                 super(document, 0, document.getLength());
  47                 this.systemId = systemId;
  48         }
  49
  50         // IXMLDocument Implementation ---------------------------------------------
  51
  52         /*
  53          * @see IXMLDocument#getRoot()
  54          */
  55         public IXMLElement getRoot() {
  56                 return root;
  57         }
  58
  59         /*
  60          * @see net.sourceforge.phpeclipse.xml.core.model.IXMLDocument#getSystemId()
  61          */
  62         public String getSystemId() {
  63                 return systemId;
  64         }
  65
  66         /*
  67          * @see IStyleSheet#reconcile(IProblemCollector)
  68          */
  69         public void reconcile(IProblemCollector problemCollector, IFile file) {
  70                 synchronized (dirtyLock) {
  71                         if (!dirty) {
  72                                 return;
  73                         }
  74                         dirty = false;
  75                 }
  76
  77                 synchronized (this) {
  78                         boolean doParse = false;
  79                         root = null;
  80                         if (file != null) {
  81                                 String filename = file.getLocation().toString();
  82                                 int len = filename.length();
  83                                 if (len >= 4) {
  84                                         if ((filename.charAt(len - 1) != 'l' && filename
  85                                                         .charAt(len - 1) != 'L')
  86                                                         || (filename.charAt(len - 2) != 'p' && filename
  87                                                                         .charAt(len - 2) != 'P')
  88                                                         || (filename.charAt(len - 3) != 't' && filename
  89                                                                         .charAt(len - 3) != 'T')
  90                                                         || (filename.charAt(len - 4) != '.')) {
  91                                                 if ((filename.charAt(len - 1) != 'm' && filename
  92                                                                 .charAt(len - 1) != 'M')
  93                                                                 || (filename.charAt(len - 2) != 't' && filename
  94                                                                                 .charAt(len - 2) != 'T')
  95                                                                 || (filename.charAt(len - 3) != 'h' && filename
  96                                                                                 .charAt(len - 3) != 'H')
  97                                                                 || (filename.charAt(len - 4) != '.')) {
  98                                                         if (len >= 5) {
  99                                                                 if ((filename.charAt(len - 1) != 'l' && filename
 100                                                                                 .charAt(len - 1) != 'L')
 101                                                                                 || (filename.charAt(len - 2) != 'm' && filename
 102                                                                                                 .charAt(len - 2) != 'M')
 103                                                                                 || (filename.charAt(len - 3) != 't' && filename
 104                                                                                                 .charAt(len - 3) != 'T')
 105                                                                                 || (filename.charAt(len - 4) != 'h' && filename
 106                                                                                                 .charAt(len - 4) != 'H')
 107                                                                                 || (filename.charAt(len - 5) != '.')) {
 108                                                                         doParse = true;
 109                                                                 }
 110                                                         }
 111                                                 }
 112                                         }
 113                                 } else {
 114                                         doParse = true;
 115                                 }
 116                         }
 117                         if (doParse) {
 118                                 IXMLParser parser = new XMLParser();
 119                                 parser.setProblemCollector(problemCollector);
 120                                 parser.setSource(getDocument());
 121                                 parser.setSystemId(systemId);
 122                                 IXMLDocument model = parser.parse();
 123                                 if (model != null) {
 124                                         root = model.getRoot();
 125                                 }
 126                         }
 127                 }
 128         }
 129
 130         // IDocumentListener Implementation ----------------------------------------
 131
 132         /*
 133          * @see IDocumentListener#documentAboutToBeChanged(DocumentEvent)
 134          */
 135         public void documentAboutToBeChanged(DocumentEvent event) {
 136                 // do nothing
 137         }
 138
 139         /*
 140          * @see IDocumentListener#documentChanged(DocumentEvent)
 141          */
 142         public void documentChanged(DocumentEvent event) {
 143                 synchronized (dirtyLock) {
 144                         dirty = true;
 145                 }
 146         }
 147
 148         // Public Methods ----------------------------------------------------------
 149
 150         /**
 151          * Sets the root element.
 152          *
 153          * @param root
 154          *            the root element to set
 155          */
 156         public void setRoot(IXMLElement root) {
 157                 this.root = root;
 158         }
 159
 160 }