ant/org.eclipse.ant.ui/Ant Editor/org/eclipse/ant/internal/ui/editor/xml/XmlElement.java - platform/eclipse.platform - Git at Google

 /*******************************************************************************
  * Copyright (c) 2002, 2003 GEBIT Gesellschaft fuer EDV-Beratung
  * und Informatik-Technologien mbH,
  * Berlin, Duesseldorf, Frankfurt (Germany) and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Common Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/cpl-v10.html
  *
  * Contributors:
  *     GEBIT Gesellschaft fuer EDV-Beratung und Informatik-Technologien mbH - initial API and implementation
  * 	   IBM Corporation - bug fixes
  *******************************************************************************/

 package org.eclipse.ant.internal.ui.editor.xml;

 import java.io.File;
 import java.text.MessageFormat;
 import java.util.ArrayList;
 import java.util.Iterator;
 import java.util.List;

 import org.apache.xerces.util.URI;
 import org.apache.xerces.util.URI.MalformedURIException;
 import org.eclipse.core.resources.IResource;
 import org.eclipse.core.runtime.IAdaptable;
 import org.eclipse.core.runtime.Path;
 import org.eclipse.ant.internal.ui.editor.AntEditorException;
 import org.eclipse.ant.internal.ui.model.AntUtil;

 /**
  * General representation of an xml element.
  * <P>
  * Here an xml element is refered to as what is specified using like
  * '<elementName>' in an xml file.
  *
  */
 public class XmlElement implements IAdaptable {

 	/*
 	 * (T)
 	 * Eventually extract an interface XmlSourceRange in respect to
 	 * ISourceReference that contains the two methods getOffset and
 	 * getLength
 	 */


 	/**
 	 * The offset of the corresponding source.
 	 * @see #getOffset()
 	 */
 	protected int offset;


 	/**
 	 * The length of the corresponding source.
 	 * @see #getLength()
 	 */
 	protected int length;


     /**
      * The parent node.
      */
     protected XmlElement parent;


     /**
      * The attributes.
      */
     protected List attributes = new ArrayList();


     /**
      * The child nodes.
      */
     protected List childNodes = new ArrayList();


     /**
      * The (tag-)name of the element.
      */
     protected String name;


     /**
      * The startingRow where the element begins at.
      * <P>
      * The first startingRow has the index '1'.
      */
     protected int startingRow;


     /**
      * The startingColumn where the element begins at.
      * <P>
      * The first startingColumn has the index '1'.
      */
     protected int startingColumn;


     /**
      * The row where the element ends at.
      * <P>
      * The first ending row has the index '1'.
      */
     protected int endingRow;


     /**
      * The column where the element ends at.
      * <P>
      * The first ending column has the index '1'.
      * The ending column is actually the index on this line after '>'.
      */
     protected int endingColumn;

 	/**
 	 * Whether this element has been generated as part of an element hierarchy
 	 * this is not complete as a result of an error.
 	 */
 	private boolean isErrorNode;

 	/**
 	 * The absolute file system path of the file this element is
 	 * defined within.
 	 */
 	private String filePath;

 	/**
 	 * Whether this element has been generated from an external entity definition
 	 */
 	private boolean isExternal = false;

 	/**
 	 * Whether this element is the root external element generated from an external entity definition
 	 */
 	private boolean isRootExternal = false;

 	/**
 	 * The unique (in the corresponding element tree) path of this element.
 	 */
 	private String fElementPath;

 	/**
 	 * The (not necessarily unique) identifier of this element.
 	 */
 	private String fElementIdentifier;


 	/**
      * Creates an instance with the specified name.
      */
     public XmlElement(String aName) {
        name = aName;
     }


     /**
      * Returns the name.
      */
     public String getName() {
         return name;
     }


     /**
      * Returns the name that is used for display in outline view.
      * <P>
      * The default implementation returns just the same as the method <code>getName()</code>.
      * Override this method in your own subclass for special elements in order to provide a
      * custom display name.
      */
     public String getDisplayName() {
     	return getName();
     }


     /**
      * Returns the child nodes.
      */
     public List getChildNodes() {
         return childNodes;
     }


     /**
      * Returns the parent XmlElement.
      *
      * @return the parent or <code>null</code> if this element has no parent.
      */
     public XmlElement getParentNode() {
         return parent;
     }


     /**
      * Adds the specified element as child.
      * <P>
      * The specified element will have this assigned as its parent.
      *
      * @throws AntEditorException if the specified child element allready
      * has a parent.
      */
     public void addChildNode(XmlElement aChildElement) {
         if(aChildElement.getParentNode() != null) {
             throw new AntEditorException(MessageFormat.format(AntEditorXMLMessages.getString("XmlElement.XmlElement_cannot_be_added_as_a_child"), new String[]{aChildElement.toString(), aChildElement.getParentNode().toString()})); //$NON-NLS-1$
         }
         aChildElement.parent = this;
         childNodes.add(aChildElement);
     }


     /**
      * Returns all attributes.
      */
     public List getAttributes() {
         return attributes;
     }


     /**
      * Adds the specified attribute.
      */
     public void addAttribute(XmlAttribute anAttribute) {
         attributes.add(anAttribute);
     }


     /**
      * Returns the attribute with the specified name or <code>null</code>,
      * if non existing.
      */
     public XmlAttribute getAttributeNamed(String anAttributeName) {
         for (Iterator i = attributes.iterator(); i.hasNext();) {
             XmlAttribute anAttribute = (XmlAttribute) i.next();
             if(anAttributeName.equals(anAttribute.name)) {
                 return anAttribute;
             }
         }
         return null;
     }


     /**
      * Returns the startingColumn.
      * <P>
      * The first column has the index '1'.
      */
     public int getStartingColumn() {
         return startingColumn;
     }


     /**
      * Returns the startingRow.
      * <P>
      * The first row has the index '1'.
      */
     public int getStartingRow() {
         return startingRow;
     }


     /**
      * Returns the endingRow.
      * <P>
      * The first row has the index '1'.
      */
     public int getEndingRow() {
         return endingRow;
     }


     /**
      * Sets the endingRow.
      * <P>
      * The first row has the index '1'.
      */
     public void setEndingRow(int endingRow) {
         this.endingRow = endingRow;
     }


     /**
      * Returns the ending column.
      * <P>
      * The first column has the index '1'.
      * The ending column is actually the index right after '>' on the ending
      * line.
      */
     public int getEndingColumn() {
         return endingColumn;
     }

 	/**
 	 * Sets the absolute file system path of the file this element is defined
 	 * within.
 	 */
 	public void setFilePath(String path) {
 		URI uri= null;
 		try {
 			uri= new URI(path);
 		} catch (MalformedURIException e) {
 			filePath= path;
 			return;
 		}
 		filePath = new Path(new File(uri.getPath()).getAbsolutePath()).toString();
 	}

 	/**
 	 * Returns the absolute file system path of the file this element is defined
      * within.
      */
 	public String getFilePath() {
 		return filePath;
 	}

     /**
      * Sets the endingColumn.
      * <P>
      * The first column has the index '1'.
      * The ending column is actually the index right after '>' on the ending
      * line.
      */
     public void setEndingColumn(int endingColumn) {
         this.endingColumn = endingColumn;
     }


     /**
      * Sets the startingColumn.
      * <P>
      * The first column has the index '1'.
      */
     public void setStartingColumn(int startingColumn) {
         this.startingColumn = startingColumn;
     }


     /**
      * Sets the startingRow.
      * <P>
      * The first row has the index '1'.
      */
     public void setStartingRow(int startingRow) {
         this.startingRow = startingRow;
     }


 	/**
 	 * Returns the 0-based index of the first character of the source code for this element,
 	 * relative to the source buffer in which this element is contained.
 	 *
 	 * @return the 0-based index of the first character of the source code for this element,
 	 * relative to the source buffer in which this element is contained
 	 */
 	public int getOffset() {
 		return offset;
 	}


 	/**
 	 * Sets the offset.
 	 *
 	 * @see #getOffset()
 	 */
 	public void setOffset(int anOffset) {
 		offset = anOffset;
 	}


 	/**
 	 * Returns the number of characters of the source code for this element,
 	 * relative to the source buffer in which this element is contained.
 	 *
 	 * @return the number of characters of the source code for this element,
 	 * relative to the source buffer in which this element is contained
 	 */
     public int getLength() {
         return length;
     }


 	/**
 	 * Sets the length.
 	 *
 	 * @see #getLength()
 	 */
 	public void setLength(int aLength) {
 		length = aLength;
 	}


 	/**
 	 * Returns a string representation of this element.
 	 */
 	public String toString() {
 		return MessageFormat.format(AntEditorXMLMessages.getString("XmlElement.XmlElement_toString"), new String[]{name, Integer.toString(startingRow), Integer.toString(startingColumn), Integer.toString(endingRow), Integer.toString(endingColumn)}); //$NON-NLS-1$
 	}

 	/**
 	 * Returns whether this element has been generated as part of an element
 	 * hierarchy this is not complete as a result of an error.
 	 */
 	public boolean isErrorNode() {
 		return isErrorNode;
 	}

 	/**
 	 * Sets whether this element has been generated as part of an element
 	 * hierarchy this is not complete as a result of an error.
 	 */
 	public void setIsErrorNode(boolean isErrorNode) {
 		this.isErrorNode= isErrorNode;
 	}
 	/**
 	 * Returns whether this xml element is defined in an external entity.
 	 *
 	 * @return boolean
 	 */
 	public boolean isExternal() {
 		return isExternal;
 	}

 	/**
 	 * Sets whether this xml element is defined in an external entity.
 	 */
 	public void setExternal(boolean isExternal) {
 		this.isExternal = isExternal;
 	}

 	/**
 	 * Sets whether this xml element is the root external entity.
 	 */
 	public void setRootExternal(boolean isExternal) {
 		this.isRootExternal = isExternal;
 	}

 	/**
 	 * Returns whether this xml element is the root external entity.
 	 */
 	public boolean isRootExternal() {
 		return isRootExternal;
 	}

 	public String getElementPath() {
 		if (fElementPath == null) {
 			StringBuffer buffer= new StringBuffer(getParentNode() != null ? getParentNode().getElementPath() : ""); //$NON-NLS-1$
 			buffer.append('/');
 			buffer.append(getElementIdentifier());
 			buffer.append('[');
 			buffer.append(getParentNode() != null ? getParentNode().getElementIndexOf(this) : 0);
 			buffer.append(']');

 			fElementPath= buffer.toString();
 		}
 		return fElementPath;
 	}

 	private String getElementIdentifier() {
 		if (fElementIdentifier == null) {
 			StringBuffer buffer= escape(new StringBuffer(getName() != null ? getName() : ""), '\\', "$/[]\\"); //$NON-NLS-1$ //$NON-NLS-2$
 			buffer.append('$');
 			buffer.append(escape(new StringBuffer(getDisplayName() != null ? getDisplayName() : ""), '\\', "$/[]\\").toString()); //$NON-NLS-1$ //$NON-NLS-2$

 			fElementIdentifier= buffer.toString();
 		}
 		return fElementIdentifier;
 	}

 	private StringBuffer escape(StringBuffer sb, char esc, String special) {
 		for (int i= 0; i < sb.length(); i++) {
 			if (special.indexOf(sb.charAt(i)) >= 0) {
 				sb.insert(i++, esc);
 			}
 		}

 		return sb;
 	}

 	private int getElementIndexOf(XmlElement child) {
 		if (getChildNodes() == null) {
 			return -1;
 		}

 		int result= -1;

 		Iterator iter= getChildNodes().iterator();
 		XmlElement current= null;
 		while (current != child && iter.hasNext()) {
 			current= (XmlElement) iter.next();
 			if (child.getElementIdentifier().equals(current.getElementIdentifier()))
 				result++;
 		}

 		if (current != child) {
 			return -1;
 		}

 		return result;
 	}

 	/*
 	 * @see java.lang.Object#equals(java.lang.Object)
 	 */
 	public boolean equals(Object o2) {
 		// prepared to be used in an IElementComparer, depends on http://dev.eclipse.org/bugs/show_bug.cgi?id=32254
 		Object o1= this;

 		if (o1 == o2) {
 			return true;
 		}
 		if (o1 == null || o2 == null) {
 			return false;
 		}
 		if (!(o1 instanceof XmlElement || o2 instanceof XmlElement)) {
 			return o2.equals(o1);
 		}
 		if (!(o1 instanceof XmlElement && o2 instanceof XmlElement)) {
 			return false;
 		}

 		XmlElement e1= (XmlElement) o1;
 		XmlElement e2= (XmlElement) o2;

 		if (e1.getElementPath().equals(e2.getElementPath())) {
 			return true;
 		}

 		return false;
 	}

 	/*
 	 * @see java.lang.Object#hashCode()
 	 */
 	public int hashCode() {
 		// prepared to be used in an IElementComparer, depends on http://dev.eclipse.org/bugs/show_bug.cgi?id=32254
 		Object o1= this;

 		if (o1 == null) {
 			return 0;
 		}
 		if (!(o1 instanceof XmlElement)) {
 			return o1.hashCode();
 		}

 		XmlElement e1= (XmlElement) o1;

 		return e1.getElementPath().hashCode();
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.core.runtime.IAdaptable#getAdapter(java.lang.Class)
 	 */
 	public Object getAdapter(Class adapter) {
 		if (adapter == IResource.class) {
 			if (getFilePath() != null) {
 				return AntUtil.getFile(getFilePath());
 			}
 		}
 		return null;
 	}

 }
	/*******************************************************************************
	* Copyright (c) 2002, 2003 GEBIT Gesellschaft fuer EDV-Beratung
	* und Informatik-Technologien mbH,
	* Berlin, Duesseldorf, Frankfurt (Germany) and others.
	* All rights reserved. This program and the accompanying materials
	* are made available under the terms of the Common Public License v1.0
	* which accompanies this distribution, and is available at
	* http://www.eclipse.org/legal/cpl-v10.html
	*
	* Contributors:
	* GEBIT Gesellschaft fuer EDV-Beratung und Informatik-Technologien mbH - initial API and implementation
	* IBM Corporation - bug fixes
	*******************************************************************************/

	package org.eclipse.ant.internal.ui.editor.xml;

	import java.io.File;
	import java.text.MessageFormat;
	import java.util.ArrayList;
	import java.util.Iterator;
	import java.util.List;

	import org.apache.xerces.util.URI;
	import org.apache.xerces.util.URI.MalformedURIException;
	import org.eclipse.core.resources.IResource;
	import org.eclipse.core.runtime.IAdaptable;
	import org.eclipse.core.runtime.Path;
	import org.eclipse.ant.internal.ui.editor.AntEditorException;
	import org.eclipse.ant.internal.ui.model.AntUtil;

	/**
	* General representation of an xml element.
	* <P>
	* Here an xml element is refered to as what is specified using like
	* '<elementName>' in an xml file.
	*
	*/
	public class XmlElement implements IAdaptable {

	/*
	* (T)
	* Eventually extract an interface XmlSourceRange in respect to
	* ISourceReference that contains the two methods getOffset and
	* getLength
	*/


	/**
	* The offset of the corresponding source.
	* @see #getOffset()
	*/
	protected int offset;


	/**
	* The length of the corresponding source.
	* @see #getLength()
	*/
	protected int length;


	/**
	* The parent node.
	*/
	protected XmlElement parent;


	/**
	* The attributes.
	*/
	protected List attributes = new ArrayList();


	/**
	* The child nodes.
	*/
	protected List childNodes = new ArrayList();


	/**
	* The (tag-)name of the element.
	*/
	protected String name;


	/**
	* The startingRow where the element begins at.
	* <P>
	* The first startingRow has the index '1'.
	*/
	protected int startingRow;


	/**
	* The startingColumn where the element begins at.
	* <P>
	* The first startingColumn has the index '1'.
	*/
	protected int startingColumn;


	/**
	* The row where the element ends at.
	* <P>
	* The first ending row has the index '1'.
	*/
	protected int endingRow;


	/**
	* The column where the element ends at.
	* <P>
	* The first ending column has the index '1'.
	* The ending column is actually the index on this line after '>'.
	*/
	protected int endingColumn;

	/**
	* Whether this element has been generated as part of an element hierarchy
	* this is not complete as a result of an error.
	*/
	private boolean isErrorNode;

	/**
	* The absolute file system path of the file this element is
	* defined within.
	*/
	private String filePath;

	/**
	* Whether this element has been generated from an external entity definition
	*/
	private boolean isExternal = false;

	/**
	* Whether this element is the root external element generated from an external entity definition
	*/
	private boolean isRootExternal = false;

	/**
	* The unique (in the corresponding element tree) path of this element.
	*/
	private String fElementPath;

	/**
	* The (not necessarily unique) identifier of this element.
	*/
	private String fElementIdentifier;


	/**
	* Creates an instance with the specified name.
	*/
	public XmlElement(String aName) {
	name = aName;
	}


	/**
	* Returns the name.
	*/
	public String getName() {
	return name;
	}


	/**
	* Returns the name that is used for display in outline view.
	* <P>
	* The default implementation returns just the same as the method <code>getName()</code>.
	* Override this method in your own subclass for special elements in order to provide a
	* custom display name.
	*/
	public String getDisplayName() {
	return getName();
	}


	/**
	* Returns the child nodes.
	*/
	public List getChildNodes() {
	return childNodes;
	}


	/**
	* Returns the parent XmlElement.
	*
	* @return the parent or <code>null</code> if this element has no parent.
	*/
	public XmlElement getParentNode() {
	return parent;
	}


	/**
	* Adds the specified element as child.
	* <P>
	* The specified element will have this assigned as its parent.
	*
	* @throws AntEditorException if the specified child element allready
	* has a parent.
	*/
	public void addChildNode(XmlElement aChildElement) {
	if(aChildElement.getParentNode() != null) {
	throw new AntEditorException(MessageFormat.format(AntEditorXMLMessages.getString("XmlElement.XmlElement_cannot_be_added_as_a_child"), new String[]{aChildElement.toString(), aChildElement.getParentNode().toString()})); //$NON-NLS-1$
	}
	aChildElement.parent = this;
	childNodes.add(aChildElement);
	}


	/**
	* Returns all attributes.
	*/
	public List getAttributes() {
	return attributes;
	}


	/**
	* Adds the specified attribute.
	*/
	public void addAttribute(XmlAttribute anAttribute) {
	attributes.add(anAttribute);
	}


	/**
	* Returns the attribute with the specified name or <code>null</code>,
	* if non existing.
	*/
	public XmlAttribute getAttributeNamed(String anAttributeName) {
	for (Iterator i = attributes.iterator(); i.hasNext();) {
	XmlAttribute anAttribute = (XmlAttribute) i.next();
	if(anAttributeName.equals(anAttribute.name)) {
	return anAttribute;
	}
	}
	return null;
	}


	/**
	* Returns the startingColumn.
	* <P>
	* The first column has the index '1'.
	*/
	public int getStartingColumn() {
	return startingColumn;
	}


	/**
	* Returns the startingRow.
	* <P>
	* The first row has the index '1'.
	*/
	public int getStartingRow() {
	return startingRow;
	}


	/**
	* Returns the endingRow.
	* <P>
	* The first row has the index '1'.
	*/
	public int getEndingRow() {
	return endingRow;
	}


	/**
	* Sets the endingRow.
	* <P>
	* The first row has the index '1'.
	*/
	public void setEndingRow(int endingRow) {
	this.endingRow = endingRow;
	}


	/**
	* Returns the ending column.
	* <P>
	* The first column has the index '1'.
	* The ending column is actually the index right after '>' on the ending
	* line.
	*/
	public int getEndingColumn() {
	return endingColumn;
	}

	/**
	* Sets the absolute file system path of the file this element is defined
	* within.
	*/
	public void setFilePath(String path) {
	URI uri= null;
	try {
	uri= new URI(path);
	} catch (MalformedURIException e) {
	filePath= path;
	return;
	}
	filePath = new Path(new File(uri.getPath()).getAbsolutePath()).toString();
	}

	/**
	* Returns the absolute file system path of the file this element is defined
	* within.
	*/
	public String getFilePath() {
	return filePath;
	}

	/**
	* Sets the endingColumn.
	* <P>
	* The first column has the index '1'.
	* The ending column is actually the index right after '>' on the ending
	* line.
	*/
	public void setEndingColumn(int endingColumn) {
	this.endingColumn = endingColumn;
	}


	/**
	* Sets the startingColumn.
	* <P>
	* The first column has the index '1'.
	*/
	public void setStartingColumn(int startingColumn) {
	this.startingColumn = startingColumn;
	}


	/**
	* Sets the startingRow.
	* <P>
	* The first row has the index '1'.
	*/
	public void setStartingRow(int startingRow) {
	this.startingRow = startingRow;
	}


	/**
	* Returns the 0-based index of the first character of the source code for this element,
	* relative to the source buffer in which this element is contained.
	*
	* @return the 0-based index of the first character of the source code for this element,
	* relative to the source buffer in which this element is contained
	*/
	public int getOffset() {
	return offset;
	}


	/**
	* Sets the offset.
	*
	* @see #getOffset()
	*/
	public void setOffset(int anOffset) {
	offset = anOffset;
	}


	/**
	* Returns the number of characters of the source code for this element,
	* relative to the source buffer in which this element is contained.
	*
	* @return the number of characters of the source code for this element,
	* relative to the source buffer in which this element is contained
	*/
	public int getLength() {
	return length;
	}


	/**
	* Sets the length.
	*
	* @see #getLength()
	*/
	public void setLength(int aLength) {
	length = aLength;
	}


	/**
	* Returns a string representation of this element.
	*/
	public String toString() {
	return MessageFormat.format(AntEditorXMLMessages.getString("XmlElement.XmlElement_toString"), new String[]{name, Integer.toString(startingRow), Integer.toString(startingColumn), Integer.toString(endingRow), Integer.toString(endingColumn)}); //$NON-NLS-1$
	}

	/**
	* Returns whether this element has been generated as part of an element
	* hierarchy this is not complete as a result of an error.
	*/
	public boolean isErrorNode() {
	return isErrorNode;
	}

	/**
	* Sets whether this element has been generated as part of an element
	* hierarchy this is not complete as a result of an error.
	*/
	public void setIsErrorNode(boolean isErrorNode) {
	this.isErrorNode= isErrorNode;
	}
	/**
	* Returns whether this xml element is defined in an external entity.
	*
	* @return boolean
	*/
	public boolean isExternal() {
	return isExternal;
	}

	/**
	* Sets whether this xml element is defined in an external entity.
	*/
	public void setExternal(boolean isExternal) {
	this.isExternal = isExternal;
	}

	/**
	* Sets whether this xml element is the root external entity.
	*/
	public void setRootExternal(boolean isExternal) {
	this.isRootExternal = isExternal;
	}

	/**
	* Returns whether this xml element is the root external entity.
	*/
	public boolean isRootExternal() {
	return isRootExternal;
	}

	public String getElementPath() {
	if (fElementPath == null) {
	StringBuffer buffer= new StringBuffer(getParentNode() != null ? getParentNode().getElementPath() : ""); //$NON-NLS-1$
	buffer.append('/');
	buffer.append(getElementIdentifier());
	buffer.append('[');
	buffer.append(getParentNode() != null ? getParentNode().getElementIndexOf(this) : 0);
	buffer.append(']');

	fElementPath= buffer.toString();
	}
	return fElementPath;
	}

	private String getElementIdentifier() {
	if (fElementIdentifier == null) {
	StringBuffer buffer= escape(new StringBuffer(getName() != null ? getName() : ""), '\\', "$/[]\\"); //$NON-NLS-1$ //$NON-NLS-2$
	buffer.append('$');
	buffer.append(escape(new StringBuffer(getDisplayName() != null ? getDisplayName() : ""), '\\', "$/[]\\").toString()); //$NON-NLS-1$ //$NON-NLS-2$

	fElementIdentifier= buffer.toString();
	}
	return fElementIdentifier;
	}

	private StringBuffer escape(StringBuffer sb, char esc, String special) {
	for (int i= 0; i < sb.length(); i++) {
	if (special.indexOf(sb.charAt(i)) >= 0) {
	sb.insert(i++, esc);
	}
	}

	return sb;
	}

	private int getElementIndexOf(XmlElement child) {
	if (getChildNodes() == null) {
	return -1;
	}

	int result= -1;

	Iterator iter= getChildNodes().iterator();
	XmlElement current= null;
	while (current != child && iter.hasNext()) {
	current= (XmlElement) iter.next();
	if (child.getElementIdentifier().equals(current.getElementIdentifier()))
	result++;
	}

	if (current != child) {
	return -1;
	}

	return result;
	}

	/*
	* @see java.lang.Object#equals(java.lang.Object)
	*/
	public boolean equals(Object o2) {
	// prepared to be used in an IElementComparer, depends on http://dev.eclipse.org/bugs/show_bug.cgi?id=32254
	Object o1= this;

	if (o1 == o2) {
	return true;
	}
	if (o1 == null \|\| o2 == null) {
	return false;
	}
	if (!(o1 instanceof XmlElement \|\| o2 instanceof XmlElement)) {
	return o2.equals(o1);
	}
	if (!(o1 instanceof XmlElement && o2 instanceof XmlElement)) {
	return false;
	}

	XmlElement e1= (XmlElement) o1;
	XmlElement e2= (XmlElement) o2;

	if (e1.getElementPath().equals(e2.getElementPath())) {
	return true;
	}

	return false;
	}

	/*
	* @see java.lang.Object#hashCode()
	*/
	public int hashCode() {
	// prepared to be used in an IElementComparer, depends on http://dev.eclipse.org/bugs/show_bug.cgi?id=32254
	Object o1= this;

	if (o1 == null) {
	return 0;
	}
	if (!(o1 instanceof XmlElement)) {
	return o1.hashCode();
	}

	XmlElement e1= (XmlElement) o1;

	return e1.getElementPath().hashCode();
	}

	/* (non-Javadoc)
	* @see org.eclipse.core.runtime.IAdaptable#getAdapter(java.lang.Class)
	*/
	public Object getAdapter(Class adapter) {
	if (adapter == IResource.class) {
	if (getFilePath() != null) {
	return AntUtil.getFile(getFilePath());
	}
	}
	return null;
	}

	}