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/*
 * Copyright 2013 Worldpay
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and limitations under the License.
 */

package com.worldpay.api.common.util;

import java.text.DateFormat;
import java.text.SimpleDateFormat;

/**
 * Constants
 */
public final class Constants {

    /**
     * Single empty string literal
     */
    public static final String EMPTY_STRING = "";

    /**
     * Single underscore string literal
     */
    public static final String UNDERSCORE = "_";

    /**
     * Constant for hyphen/dash
     */
    public static final String HYPHEN = "-";

    /**
     * Constant for dash character
     */
    public static final char DASH_CHAR = '-';

    /**
     * Constant for single apostrophe character
     */
    public static final char SINGLE_APOSTROPHE_CHAR = '\'';

    /**
     * Max allowed length for string fields
     */
    public static final int PERMISSIBLE_STRING_LENGTH = 255;

    /**
     * Length allowed for Statement Narrative
     */
    public static final int PERMISSIBLE_STATEMENT_NARRATIVE_LENGTH = 24;

    /**
     * Fields can't be longer than 255 chars
     */
    public static final String FIELD_LONGER_THAN_ALLOWED_LENGTH = "field can't be longer than 255 chars";

    /**
     * Number of decimal places allowed in fractional numbers
     */
    public static final int DECIMAL_SCALE = 2;

    /**
     * Used to represent all possible values of an event
     */
    public static final String ALL_EVENTS = "ALL";

    /**
     * Type for boolean input
     */
    public static final String YES_NO_TYPE = "yes_no";

    /**
     * Date formatter, Deprecated, use {@code DateUtils.DATE_FORMAT_DDMMYYYY} instead
     */
    @Deprecated
    public static final DateFormat DATE_FORMAT_DDMMYYYY = new SimpleDateFormat("dd/MM/yyyy");

    /**
     * Hiding constructor for a utility class
     */
    private Constants() {
    }
}