src/java.desktop/share/classes/sun/print/CustomMediaTray.java

/*
 * Copyright (c) 2003, 2021, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

package sun.print;

import java.io.Serial;
import java.util.ArrayList;
import java.util.Objects;
import java.util.Map;
import java.util.HashMap;

import javax.print.attribute.EnumSyntax;
import javax.print.attribute.standard.Media;
import javax.print.attribute.standard.MediaTray;

public class CustomMediaTray extends MediaTray {
    private static ArrayList<String> customStringTable = new ArrayList<>();
    private static ArrayList<MediaTray> customEnumTable = new ArrayList<>();
    private static Map<NameChoiceItem, CustomMediaTray> customMap = new HashMap<>();
    private String choiceName;

    private CustomMediaTray(int x) {
        super(x);

    }

    private static synchronized int nextValue(String name) {
      customStringTable.add(name);
      return (customStringTable.size()-1);
    }


    public CustomMediaTray(String name, String choice) {
        super(nextValue(name));
        choiceName = choice;
        customEnumTable.add(this);
    }

    /**
     * Use serialVersionUID from JDK 1.5 for interoperability.
     */
    @Serial
    private static final long serialVersionUID = 1019451298193987013L;


    /**
     * Returns the command string for this media tray.
     */
    public String getChoiceName() {
        return choiceName;
    }


    /**
     * Returns the string table for super class MediaTray.
     */
    public Media[] getSuperEnumTable() {
      return (Media[])super.getEnumValueTable();
    }


    /**
     * Returns the string table for class CustomMediaTray.
     */
    protected String[] getStringTable() {
      String[] nameTable = new String[customStringTable.size()];
      return customStringTable.toArray(nameTable);
    }

    /**
     * Returns the enumeration value table for class CustomMediaTray.
     */
    protected EnumSyntax[] getEnumValueTable() {
      MediaTray[] enumTable = new MediaTray[customEnumTable.size()];
      return customEnumTable.toArray(enumTable);
    }

    public static CustomMediaTray create(String name, String choice) {
        NameChoiceItem key = new NameChoiceItem(name, choice);
        CustomMediaTray value = customMap.get(key);
        if (value == null) {
            value = new CustomMediaTray(name, choice);
            customMap.put(key, value);
        }
        return value;
    }

    private static class NameChoiceItem {

        private final String name;
        private final String choice;

        public NameChoiceItem(String name, String choice) {
            this.name = name;
            this.choice = choice;
        }

        public boolean equals(Object object) {
            if (this == object) return true;
            if (object == null || getClass() != object.getClass()) return false;
            NameChoiceItem that = (NameChoiceItem) object;
            return Objects.equals(this.name, that.name)
                    && Objects.equals(this.choice, that.choice);
        }

        public int hashCode() {
            return Objects.hash(name, choice);
        }
    }
}