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package com.sun.enterprise.admin.servermgmt;

import com.sun.enterprise.util.i18n.StringManager;

/**
 * Validator class for domain config entries whose type is java.lang.String.
 */
public class StringValidator extends Validator
{
    /**
     * i18n strings manager object
     */
    private static final StringManager strMgr = 
        StringManager.getManager(StringValidator.class);

    /**
     * Constructs new StringValidator object.
     * @param name
     */
    public StringValidator(String name)
    {
        super(name, java.lang.String.class);
    }

    /**
     * Validates the given value for the given entry. This method first invokes
     * its superclass's validate method and then checks additional string 
     * validations such as 0 length.
     * @throws InvalidConfigException
     */
    public void validate(Object str) throws InvalidConfigException
    {
        super.validate(str);
        int length = ((String)str).length();
        if (length == 0)
        {
            throw new InvalidConfigException(
                strMgr.getString("validator.invalid_value", getName(), str));
        }
    }
}