/*
 * Copyright 2001-2005 (C) MetaStuff, Ltd. All Rights Reserved.
 *
 * This software is open source.
 * See the bottom of this file for the licence.
 */

package org.dom4j.swing;

import java.util.List;

import javax.swing.table.AbstractTableModel;

import org.dom4j.Document;
import org.dom4j.Element;
import org.dom4j.Node;
import org.dom4j.XPath;

/**
 * <p>
 * <code>XMLTableDefinition</code> repro.
 * </p>
 * 
 * @author <a href="mailto:jstrachan@apache.org">James Strachan </a>
 * @version $Revision: 1.8 $
 */
public class XMLTableModel extends AbstractTableModel {
    /** Holds value of property definition. */
    private XMLTableDefinition definition;

    /** Holds value of property source. */
    private Object source;

    /** The rows evaluated from the row XPath expression */
    private List<Node> rows;

    /**
     * Creates a TableModel from an XML table definition document and an XML
     * source
     * 
     * @param tableDefinition
     *            DOCUMENT ME!
     * @param source
     *            DOCUMENT ME!
     */
    public XMLTableModel(Element tableDefinition, Object source) {
        this(XMLTableDefinition.load(tableDefinition), source);
    }

    /**
     * Creates a TableModel from an XML table definition document and an XML
     * source
     * 
     * @param tableDefinition
     *            DOCUMENT ME!
     * @param source
     *            DOCUMENT ME!
     */
    public XMLTableModel(Document tableDefinition, Object source) {
        this(XMLTableDefinition.load(tableDefinition), source);
    }

    public XMLTableModel(XMLTableDefinition definition, Object source) {
        this.definition = definition;
        this.source = source;
    }

    public Object getRowValue(int rowIndex) {
        return getRows().get(rowIndex);
    }

    public List<Node> getRows() {
        if (rows == null) {
            rows = definition.getRowXPath().selectNodes(source);
        }

        return rows;
    }

    // TableModel interface
    // -------------------------------------------------------------------------
    public Class<?> getColumnClass(int columnIndex) {
        return definition.getColumnClass(columnIndex);
    }

    public int getColumnCount() {
        return definition.getColumnCount();
    }

    public String getColumnName(int columnIndex) {
        XPath xpath = definition.getColumnNameXPath(columnIndex);

        if (xpath != null) {
            System.out.println("Evaluating column xpath: " + xpath + " value: "
                    + xpath.valueOf(source));

            return xpath.valueOf(source);
        }

        return definition.getColumnName(columnIndex);
    }

    public Object getValueAt(int rowIndex, int columnIndex) {
        try {
            Object row = getRowValue(rowIndex);

            return definition.getValueAt(row, columnIndex);
        } catch (Exception e) {
            handleException(e);

            return null;
        }
    }

    public int getRowCount() {
        return getRows().size();
    }

    // Properties
    // -------------------------------------------------------------------------

    /**
     * Getter for property definition.
     * 
     * @return Value of property definition.
     */
    public XMLTableDefinition getDefinition() {
        return definition;
    }

    /**
     * Setter for property definition.
     * 
     * @param definition
     *            New value of property definition.
     */
    public void setDefinition(XMLTableDefinition definition) {
        this.definition = definition;
    }

    /**
     * Getter for the XML source, which is usually a Node or List of nodes.
     * 
     * @return Value of property source.
     */
    public Object getSource() {
        return source;
    }

    /**
     * Setter for the XML source, which is usually a Node or List of nodes.
     * 
     * @param source
     *            New value of property source.
     */
    public void setSource(Object source) {
        this.source = source;
        this.rows = null;
    }

    // Implementation methods
    // -------------------------------------------------------------------------
    protected void handleException(Exception e) {
        // #### should use jakarta commons-logging
        System.out.println("Caught: " + e);
    }
}

/*
 * Redistribution and use of this software and associated documentation
 * ("Software"), with or without modification, are permitted provided that the
 * following conditions are met:
 * 
 * 1. Redistributions of source code must retain copyright statements and
 * notices. Redistributions must also contain a copy of this document.
 * 
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 * 
 * 3. The name "DOM4J" must not be used to endorse or promote products derived
 * from this Software without prior written permission of MetaStuff, Ltd. For
 * written permission, please contact dom4j-info@metastuff.com.
 * 
 * 4. Products derived from this Software may not be called "DOM4J" nor may
 * "DOM4J" appear in their names without prior written permission of MetaStuff,
 * Ltd. DOM4J is a registered trademark of MetaStuff, Ltd.
 * 
 * 5. Due credit should be given to the DOM4J Project - http://www.dom4j.org
 * 
 * THIS SOFTWARE IS PROVIDED BY METASTUFF, LTD. AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL METASTUFF, LTD. OR ITS CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 * 
 * Copyright 2001-2005 (C) MetaStuff, Ltd. All Rights Reserved.
 */
