package org.apache.turbine.services.intake.model;

/* ====================================================================
 * The Apache Software License, Version 1.1
 *
 * Copyright (c) 2001-2003 The Apache Software Foundation.  All rights
 * reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 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 end-user documentation included with the redistribution,
 *    if any, must include the following acknowledgment:
 *       "This product includes software developed by the
 *        Apache Software Foundation (http://www.apache.org/)."
 *    Alternately, this acknowledgment may appear in the software itself,
 *    if and wherever such third-party acknowledgments normally appear.
 *
 * 4. The names "Apache" and "Apache Software Foundation" and
 *    "Apache Turbine" must not be used to endorse or promote products
 *    derived from this software without prior written permission. For
 *    written permission, please contact apache@apache.org.
 *
 * 5. Products derived from this software may not be called "Apache",
 *    "Apache Turbine", nor may "Apache" appear in their name, without
 *    prior written permission of the Apache Software Foundation.
 *
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 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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 * 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.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 */

import org.apache.commons.lang.StringUtils;

import org.apache.turbine.services.intake.IntakeException;
import org.apache.turbine.services.intake.validator.StringValidator;
import org.apache.turbine.services.intake.xmlmodel.XmlField;

/**
 * Text field.
 *
 * @deprecated Use the Fulcrum Intake component instead.
 * @author <a href="mailto:jmcnally@collab.net">John McNally</a>
 * @author <a href="mailto:hps@intermeta.de">Henning P. Schmiedehausen</a>
 * @author <a href="mailto:quintonm@bellsouth.net">Quinton McCombs</a>
 * @version $Id$
 */
public class StringField
        extends Field
{

    /**
     * Constructor.
     *
     * @param field xml field definition object
     * @param group xml group definition object
     * @throws IntakeException thrown by superclass
     */
    public StringField(XmlField field, Group group)
            throws IntakeException
    {
        super(field, group);
    }

    /**
     * Produces the fully qualified class name of the default validator.
     *
     * @return class name of the default validator
     */
    protected String getDefaultValidator()
    {
        return StringValidator.class.getName();
    }

    /**
     * Sets the default value for a String field
     *
     * @param prop Parameter for the default values
     */
    public void setDefaultValue(String prop)
    {
        defaultValue = prop;
    }

    /**
     * Set the empty Value. This value is used if Intake
     * maps a field to a parameter returned by the user and
     * the corresponding field is either empty (empty string)
     * or non-existant.
     *
     * @param prop The value to use if the field is empty.
     */
    public void setEmptyValue(String prop)
    {
        emptyValue = prop;
    }

    /**
     * Sets the value of the field from data in the parser.
     */
    protected void doSetValue()
    {
        if (isMultiValued)
        {
            String[] ss = parser.getStrings(getKey());
            String[] sval = new String[ss.length];
            for (int i = 0; i < ss.length; i++)
            {
                sval[i] = (StringUtils.isNotEmpty(ss[i])) ? ss[i] : (String) getEmptyValue();
            }
            setTestValue(sval);
        }
        else
        {
            String val = parser.getString(getKey());
            setTestValue(StringUtils.isNotEmpty(val) ? val : (String) getEmptyValue());
        }
    }

    /**
     * Set the value of required.
     *
     * @param v  Value to assign to required.
     * @param message an error message
     */
    public void setRequired(boolean v, String message)
    {
        this.required = v;
        if (v)
        {
            if (isMultiValued)
            {
                String[] ss = (String[]) getTestValue();
                if (ss == null || ss.length == 0)
                {
                    validFlag = false;
                    this.message = message;
                }
                else
                {
                    boolean set = false;
                    for (int i = 0; i < ss.length; i++)
                    {
                        set |= StringUtils.isNotEmpty(ss[i]);
                        if (set)
                        {
                            break;
                        }
                    }
                    if (!set)
                    {
                        validFlag = false;
                        this.message = message;
                    }
                }
            }
            else
            {
                if (!setFlag || StringUtils.isEmpty((String) getTestValue()))
                {
                    validFlag = false;
                    this.message = message;
                }
            }
        }
    }
}