verifierhandlerimpl.java

来自「RESIN 3.2 最新源码」· Java 代码 · 共 820 行 · 第 1/2 页

    currentItem.firstSet(values);

    for (QName value : values) {
      if (! name.getLocalName().equals(value.getLocalName())) {
      }
      else if (name.getPrefix() == null || name.getPrefix().equals("")) {
	return name.getName() + " xmlns=\"" + name.getNamespaceURI() + "\"";
      }
      else {
	return name.getName() + " xmlns:" + name.getPrefix() + "=\"" + name.getNamespaceURI() + "\"";
      }
    }

    return name.getName();
  }

  /**
   * Returns a string containing the allowed values.
   */
  private String errorMessageDetail(Item item, Item parentItem,
				    String parentName, QName qName)
  {
    Item currentItem = item;
    
    if (currentItem == null)
      currentItem = parentItem;

    HashSet<QName> values = new LinkedHashSet<QName>();
    currentItem.firstSet(values);

    String expected = null;
    if (values.size() <= 5)
      expected = namesToString(values, parentName, qName,
			       currentItem.allowEmpty());
    
    return (getLineContext(getFileName(), getLine())
	    + syntaxMessage(item, parentItem, parentName, qName, expected));
  }

  /**
   * Returns a string containing the allowed values.
   */
  private String requiredMessageDetail(Item item, Item parentItem,
				       String parentName, QName qName)
  {
    Item currentItem = item;

    if (currentItem == null)
      currentItem = parentItem;

    HashSet<QName> values = new LinkedHashSet<QName>();
    currentItem.requiredFirstSet(values);
      
    String expected = null;
    
    if (values.size() <= 5) {
      expected = namesToString(values, parentName, qName,
			       currentItem.allowEmpty());
    }
    
    return (getLineContext(getFileName(), getLine())
	    + syntaxMessage(item, parentItem, parentName, qName, expected));
  }

  /**
   * Returns a string containing the allowed values.
   */
  private String attributeMessageDetail(Item item, Item parentItem,
					String parentName, QName qName)
  {
    Item currentItem = item;

    if (currentItem == null)
      currentItem = parentItem;
    
    String allowed = allowedAttributes(currentItem, qName);
    
    return (getLineContext(getFileName(), getLine())
	    + syntaxMessage(item, parentItem, parentName, qName, allowed));
  }

  /**
   * Returns a string containing the allowed values.
   */
  private String syntaxMessage(Item item, Item parentItem,
			       String parentName, QName qName,
			       String expected)
  {
    String syntaxPrefix;

    if (parentName == null || parentName.equals("#top"))
      syntaxPrefix = "Syntax: ";
    else
      syntaxPrefix = "<" + parentName + "> syntax: ";
    
    String msg = "";

    Item topParent = null;
    for (Item parent = item;
	 parent != null;
	 parent = null) { // parent.getParent()) {
      if (qName != null && parent.allowsElement(qName)) {
	msg = "\n Check for duplicate and out-of-order tags.";

	if (expected != null)
	  msg += expected + "\n";
	
	msg += "\n";

	String prefix = "Syntax: ";
	if (parent == parentItem)
	  prefix = syntaxPrefix;
	
	msg += prefix + parent.toSyntaxDescription(prefix.length());
	break;
      }
      
      // topParent = parent;
    }

    if (topParent == null || topParent instanceof EmptyItem) {
      topParent = parentItem;

      if (qName != null && topParent.allowsElement(qName)) {
	msg = "\n Check for duplicate and out-of-order tags.";

	if (expected != null)
	  msg += expected + "\n";
	
	msg += "\n";

	String prefix = syntaxPrefix;
	msg += prefix + topParent.toSyntaxDescription(prefix.length());
      }
    }

    if (msg.equals("")) {
      msg = "";

      if (expected != null)
	msg += expected + "\n";
      
      msg += "\n";

      String prefix = syntaxPrefix;
      msg += prefix + topParent.toSyntaxDescription(prefix.length());
    }

    return msg;
  }

  /**
   * Returns a string containing the allowed values.
   */
  private String requiredValues(Item item, String parentName, QName qName)
  {
    if (item == null)
      return "";

    HashSet<QName> values = new LinkedHashSet<QName>();
    item.requiredFirstSet(values);

    return namesToString(values, parentName, qName, item.allowEmpty());
  }

  private String namesToString(HashSet<QName> values,
			       String parentName,
			       QName qName,
			       boolean allowEmpty)
  {
    CharBuffer cb = new CharBuffer();
    if (values.size() > 0) {
      ArrayList<QName> sortedValues = new ArrayList<QName>(values);
      Collections.sort(sortedValues);
      
      for (int i = 0; i < sortedValues.size(); i++) {
        QName name = sortedValues.get(i);

        if (i == 0)
          cb.append("\n\n");
        else if (i == sortedValues.size() - 1)
          cb.append(" or\n");
        else
          cb.append(",\n");

	if (name.getName().equals("#text")) {
	  cb.append("text");
	}
        else if (name.getNamespaceURI() == null || qName == null)
          cb.append("<" + name.getName() + ">");
        else if (qName.getNamespaceURI() != name.getNamespaceURI()) {
          if (name.getPrefix() != null)
            cb.append("<" + name.getName() + " xmlns:" + name.getPrefix() + "=\"" + name.getNamespaceURI() + "\">");
          else
            cb.append("<" + name.getName() + " xmlns=\"" + name.getNamespaceURI() + "\">");
        }
        else
          cb.append("<" + name.getName() + ">");
      }

      if (values.size() == 1)
        cb.append(" is expected");
      else
        cb.append(" are expected");

      if (allowEmpty) {
        if (parentName == null || parentName.equals("#top"))
          cb.append(",\nor the document may end.");
        else
          cb.append(",\nor </" + parentName + "> may close.");
      }
      else
        cb.append(".");
    }
    else if (allowEmpty) {
      if (parentName == null || parentName.equals("#top"))
        cb.append("\n\nThe document is expected to end.");
      else
        cb.append("\n\n</" + parentName + "> is expected to close.");
    }

    return cb.toString();
  }      

  /**
   * Returns a string containing the allowed values.
   */
  private String allowedAttributes(Item item, QName qName)
  {
    if (item == null)
      return "";

    HashSet<QName> values = new LinkedHashSet<QName>();
    item.attributeSet(values);

    CharBuffer cb = new CharBuffer();
    if (values.size() > 0) {
      ArrayList<QName> sortedValues = new ArrayList<QName>(values);
      Collections.sort(sortedValues);
      
      for (int i = 0; i < sortedValues.size(); i++) {
        QName name = sortedValues.get(i);

        if (i == 0)
          cb.append("\n\n");
        else if (i == sortedValues.size() - 1)
          cb.append(" or ");
        else
          cb.append(", ");

	String uri = name.getNamespaceURI();
        if (uri == null || uri.equals(""))
          cb.append("'" + name.getName() + "'");
        else if (qName == null || qName.getName().equals(name.getName()))
          cb.append("'" + name.getCanonicalName() + "'");
        else
          cb.append("'" + name.getName() + "'");
      }

      if (values.size() == 1)
        cb.append(" is expected.");
      else
        cb.append(" are expected.");
    }

    return cb.toString();
  }      

  /**
   * Returns the current location.
   */
  private String getLocation()
  {
    if (_locator == null)
      return "";
    else
      return "" + _locator.getLineNumber();
  }
  
  /**
   * Checks if the document was valid.
   * 
   * <p>
   * This method can be only called after this handler receives
   * the <code>endDocument</code> event.
   * 
   * @return
   *		<b>true</b> if the document was valid,
   *		<b>false</b> if not.
   * 
   * @exception IllegalStateException
   *		If this method is called before the endDocument event is dispatched.
   */
  public boolean isValid() throws IllegalStateException
  {
    return _isValid;
  }

  private String getLineContext(String filename, int errorLine)
  {
    if (filename == null || errorLine <= 0)
      return "";
    
    ReadStream is = null;
    try {
      Path path = Vfs.lookup().lookup(filename);

      StringBuilder sb = new StringBuilder("\n\n");

      is = path.openRead();
      int line = 0;
      String text;
      while ((text = is.readLine()) != null) {
	line++;

	if (errorLine - 2 <= line && line <= errorLine + 2) {
	  sb.append(line);
	  sb.append(": ");
	  sb.append(text);
	  sb.append("\n");
	}
      }

      return sb.toString();
    } catch (IOException e) {
      log.log(Level.FINEST, e.toString(), e);

      return "";
    } finally {
      if (is != null)
	is.close();
    }
  }

  static class StartKey {
    private Item _item;
    private QName _name;
    
    public StartKey(Item item, QName name)
    {
      _item = item;
      _name = name;
    }
    
    public StartKey()
    {
    }

    public void init(Item item, QName name)
    {
      _item = item;
      _name = name;
    }

    public int hashCode()
    {
      return _name.hashCode() + 137 * System.identityHashCode(_item);
    }

    public boolean equals(Object o)
    {
      if (o == this)
        return true;

      if (o.getClass() != StartKey.class)
        return false;

      StartKey key = (StartKey) o;

      return _name.equals(key._name) && _item == key._item;
    }
  }

  static class EndElementKey {
    private Item _item;
    
    public EndElementKey(Item item)
    {
      _item = item;
    }
    
    public EndElementKey()
    {
    }

    public void init(Item item)
    {
      _item = item;
    }

    public int hashCode()
    {
      return 137 + _item.hashCode();
    }

    public boolean equals(Object o)
    {
      if (o == this)
        return true;

      if (o.getClass() != EndElementKey.class)
        return false;

      EndElementKey key = (EndElementKey) o;

      return _item.equals(key._item);
    }
  }
}