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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * particular file as subject to the "Classpath" exception as provided
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 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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package javax.xml.bind.helpers;

import java.net.URL;
import java.net.MalformedURLException;
import java.text.MessageFormat;

import javax.xml.bind.ValidationEventLocator;
import org.w3c.dom.Node;
import org.xml.sax.Locator;
import org.xml.sax.SAXParseException;


Default implementation of the ValidationEventLocator interface.


JAXB providers are allowed to use whatever class that implements
the ValidationEventLocator interface. This class is just provided for a
convenience.

Author:
  • Kohsuke Kawaguchi, Sun Microsystems, Inc.
See Also:
Since:1.6, JAXB 1.0
/**
 * Default implementation of the ValidationEventLocator interface.
 *
 * <p>
 * JAXB providers are allowed to use whatever class that implements
 * the ValidationEventLocator interface. This class is just provided for a
 * convenience.
 *
 * @author <ul><li>Kohsuke Kawaguchi, Sun Microsystems, Inc.</li></ul>
 * @see javax.xml.bind.Validator
 * @see javax.xml.bind.ValidationEventHandler
 * @see javax.xml.bind.ValidationEvent
 * @see javax.xml.bind.ValidationEventLocator
 * @since 1.6, JAXB 1.0
 */
public class ValidationEventLocatorImpl implements ValidationEventLocator
{
    
Creates an object with all fields unavailable.

/**
     * Creates an object with all fields unavailable.
     */
    public ValidationEventLocatorImpl() {
    }

    
Constructs an object from an org.xml.sax.Locator.
The object's ColumnNumber, LineNumber, and URL become available from the
values returned by the locator's getColumnNumber(), getLineNumber(), and
getSystemId() methods respectively. Node, Object, and Offset are not
available.

Params:
  • loc – the SAX Locator object that will be used to populate this
event locator.
Throws:
/**
     * Constructs an object from an org.xml.sax.Locator.
     *
     * The object's ColumnNumber, LineNumber, and URL become available from the
     * values returned by the locator's getColumnNumber(), getLineNumber(), and
     * getSystemId() methods respectively. Node, Object, and Offset are not
     * available.
     *
     * @param loc the SAX Locator object that will be used to populate this
     * event locator.
     * @throws IllegalArgumentException if the Locator is null
     */
    public ValidationEventLocatorImpl( Locator loc ) {
        if( loc == null ) {
            throw new IllegalArgumentException(
                Messages.format( Messages.MUST_NOT_BE_NULL, "loc" ) );
        }

        this.url = toURL(loc.getSystemId());
        this.columnNumber = loc.getColumnNumber();
        this.lineNumber = loc.getLineNumber();
    }

    
Constructs an object from the location information of a SAXParseException.
The object's ColumnNumber, LineNumber, and URL become available from the
values returned by the locator's getColumnNumber(), getLineNumber(), and
getSystemId() methods respectively. Node, Object, and Offset are not
available.

Params:
  • e – the SAXParseException object that will be used to populate this
event locator.
Throws:
/**
     * Constructs an object from the location information of a SAXParseException.
     *
     * The object's ColumnNumber, LineNumber, and URL become available from the
     * values returned by the locator's getColumnNumber(), getLineNumber(), and
     * getSystemId() methods respectively. Node, Object, and Offset are not
     * available.
     *
     * @param e the SAXParseException object that will be used to populate this
     * event locator.
     * @throws IllegalArgumentException if the SAXParseException is null
     */
    public ValidationEventLocatorImpl( SAXParseException e ) {
        if( e == null ) {
            throw new IllegalArgumentException(
                Messages.format( Messages.MUST_NOT_BE_NULL, "e" ) );
        }

        this.url = toURL(e.getSystemId());
        this.columnNumber = e.getColumnNumber();
        this.lineNumber = e.getLineNumber();
    }

    
Constructs an object that points to a DOM Node.
The object's Node becomes available.  ColumnNumber, LineNumber, Object,
Offset, and URL are not available.

Params:
  • _node – the DOM Node object that will be used to populate this
event locator.
Throws:
/**
     * Constructs an object that points to a DOM Node.
     *
     * The object's Node becomes available.  ColumnNumber, LineNumber, Object,
     * Offset, and URL are not available.
     *
     * @param _node the DOM Node object that will be used to populate this
     * event locator.
     * @throws IllegalArgumentException if the Node is null
     */
    public ValidationEventLocatorImpl(Node _node) {
        if( _node == null ) {
            throw new IllegalArgumentException(
                Messages.format( Messages.MUST_NOT_BE_NULL, "_node" ) );
        }

        this.node = _node;
    }

    
Constructs an object that points to a JAXB content object.
The object's Object becomes available. ColumnNumber, LineNumber, Node,
Offset, and URL are not available.

Params:
  • _object – the Object that will be used to populate this
event locator.
Throws:
/**
     * Constructs an object that points to a JAXB content object.
     *
     * The object's Object becomes available. ColumnNumber, LineNumber, Node,
     * Offset, and URL are not available.
     *
     * @param _object the Object that will be used to populate this
     * event locator.
     * @throws IllegalArgumentException if the Object is null
     */
    public ValidationEventLocatorImpl(Object _object) {
        if( _object == null ) {
            throw new IllegalArgumentException(
                Messages.format( Messages.MUST_NOT_BE_NULL, "_object" ) );
        }

        this.object = _object;
    }

    
Converts a system ID to an URL object. 
/** Converts a system ID to an URL object. */
    private static URL toURL( String systemId ) {
        try {
            return new URL(systemId);
        } catch( MalformedURLException e ) {
            // TODO: how should we handle system id here?
            return null;    // for now
        }
    }

    private URL url = null;
    private int offset = -1;
    private int lineNumber = -1;
    private int columnNumber = -1;
    private Object object = null;
    private Node node = null;


    
See Also:
  • getURL.getURL()
/**
     * @see javax.xml.bind.ValidationEventLocator#getURL()
     */
    public URL getURL() {
        return url;
    }

    
Set the URL field on this event locator.  Null values are allowed.

Params:
  • _url – the url
/**
     * Set the URL field on this event locator.  Null values are allowed.
     *
     * @param _url the url
     */
    public void setURL( URL _url ) {
        this.url = _url;
    }

    
See Also:
  • getOffset.getOffset()
/**
     * @see javax.xml.bind.ValidationEventLocator#getOffset()
     */
    public int getOffset() {
        return offset;
    }

    
Set the offset field on this event locator.

Params:
  • _offset – the offset
/**
     * Set the offset field on this event locator.
     *
     * @param _offset the offset
     */
    public void setOffset( int _offset ) {
        this.offset = _offset;
    }

    
See Also:
  • getLineNumber.getLineNumber()
/**
     * @see javax.xml.bind.ValidationEventLocator#getLineNumber()
     */
    public int getLineNumber() {
        return lineNumber;
    }

    
Set the lineNumber field on this event locator.

Params:
  • _lineNumber – the line number
/**
     * Set the lineNumber field on this event locator.
     *
     * @param _lineNumber the line number
     */
    public void setLineNumber( int _lineNumber ) {
        this.lineNumber = _lineNumber;
    }

    
See Also:
  • getColumnNumber.getColumnNumber()
/**
     * @see javax.xml.bind.ValidationEventLocator#getColumnNumber()
     */
    public int getColumnNumber() {
        return columnNumber;
    }

    
Set the columnNumber field on this event locator.

Params:
  • _columnNumber – the column number
/**
     * Set the columnNumber field on this event locator.
     *
     * @param _columnNumber the column number
     */
    public void setColumnNumber( int _columnNumber ) {
        this.columnNumber = _columnNumber;
    }

    
See Also:
  • getObject.getObject()
/**
     * @see javax.xml.bind.ValidationEventLocator#getObject()
     */
    public Object getObject() {
        return object;
    }

    
Set the Object field on this event locator.  Null values are allowed.

Params:
  • _object – the java content object
/**
     * Set the Object field on this event locator.  Null values are allowed.
     *
     * @param _object the java content object
     */
    public void setObject( Object _object ) {
        this.object = _object;
    }

    
See Also:
  • getNode.getNode()
/**
     * @see javax.xml.bind.ValidationEventLocator#getNode()
     */
    public Node getNode() {
        return node;
    }

    
Set the Node field on this event locator.  Null values are allowed.

Params:
  • _node – the Node
/**
     * Set the Node field on this event locator.  Null values are allowed.
     *
     * @param _node the Node
     */
    public void setNode( Node _node ) {
        this.node = _node;
    }

    
Returns a string representation of this object in a format
helpful to debugging.

See Also:
  • equals.equals(Object)
/**
     * Returns a string representation of this object in a format
     * helpful to debugging.
     *
     * @see Object#equals(Object)
     */
    public String toString() {
        return MessageFormat.format("[node={0},object={1},url={2},line={3},col={4},offset={5}]",
            getNode(),
            getObject(),
            getURL(),
            String.valueOf(getLineNumber()),
            String.valueOf(getColumnNumber()),
            String.valueOf(getOffset()));
    }
}