# MediaType.java

    /*
     * Copyright (C) 2000 - 2026 Silverpeas
     *
     * This program is free software: you can redistribute it and/or modify
     * it under the terms of the GNU Affero General Public License as
     * published by the Free Software Foundation, either version 3 of the
     * License, or (at your option) any later version.
     *
     * As a special exception to the terms and conditions of version 3.0 of
     * the GPL, you may redistribute this Program in connection with Free/Libre
     * Open Source Software ("FLOSS") applications as described in Silverpeas's
     * FLOSS exception. You should have received a copy of the text describing
     * the FLOSS exception, and it is also available here:
     * "http://www.silverpeas.org/docs/core/legal/floss_exception.html"
     *
     * This program 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 Affero General Public License for more details.
     *
     * You should have received a copy of the GNU Affero General Public License
     * along with this program.  If not, see <https://www.gnu.org/licenses/>.
     */
    package org.silverpeas.components.gallery.constant;

    import org.silverpeas.components.gallery.model.Media;
    import org.silverpeas.kernel.util.StringUtil;
    import com.fasterxml.jackson.annotation.JsonCreator;
    import com.fasterxml.jackson.annotation.JsonValue;
    import org.silverpeas.kernel.logging.SilverLogger;

    /**
     * @author: Yohann Chastagnier
     */
    public enum MediaType {
      Unknown(null),
      Photo(org.silverpeas.components.gallery.model.Photo.class),
      Video(org.silverpeas.components.gallery.model.Video.class),
      Sound(org.silverpeas.components.gallery.model.Sound.class),
      Streaming(org.silverpeas.components.gallery.model.Streaming.class);

      private final Class<? extends Media> mediaClass;
      private final String mediaWebUriPart;

      MediaType(final Class<? extends Media> mediaClass) {
        this.mediaClass = mediaClass;
        mediaWebUriPart = name().toLowerCase() + "s";
      }

      /**
       * Gets the enum instance according to the specified type.
       * @param type
       * @return
       */
      @JsonCreator
      public static MediaType from(String type) {
        try {
          return valueOf(StringUtil.capitalize(type));
        } catch (Exception e) {
          SilverLogger.getLogger(MediaType.class).warn(e);
          return Unknown;
        }
      }

      @JsonValue
      public String getName() {
        return name();
      }

      /**
       * Instantiates a new model instance according to the media type.
       * @param <M>
       * @return
       */
      @SuppressWarnings("unchecked")
      public <M extends Media> M newInstance() {
        try {
          return (M) mediaClass.newInstance();
        } catch (Exception e) {
          SilverLogger.getLogger(this).warn(e);
          return null;
        }
      }

      /**
       * Indicates if current type is the photo one.
       * @return
       */
      public boolean isPhoto() {
        return Photo == this;
      }

      /**
       * Indicates if current type is the video one.
       * @return
       */
      public boolean isVideo() {
        return Video == this;
      }

      /**
       * Indicates if current type is the sound one.
       * @return
       */
      public boolean isSound() {
        return Sound == this;
      }

      /**
       * Indicates if current type is the streaming one.
       * @return
       */
      public boolean isStreaming() {
        return Streaming == this;
      }

      /**
       * Gets the prefix folder name of a media on Silverpeas workspace.
       * @return
       */
      public String getTechnicalFolder() {
        if (this == MediaType.Photo) {
          return "image";
        } else {
          return this.name().toLowerCase();
        }
      }

      /**
       * Gets the media Web Uri part.
       * @return
       */
      public String getMediaWebUriPart() {
        return mediaWebUriPart;
      }
    }