1 /*
   2  * Copyright (c) 2010, 2015, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package com.sun.media.jfxmediaimpl.platform;
  27 
  28 import com.sun.media.jfxmedia.Media;
  29 import com.sun.media.jfxmedia.MediaPlayer;
  30 import com.sun.media.jfxmedia.MetadataParser;
  31 import com.sun.media.jfxmedia.locator.Locator;
  32 
  33 /**
  34  * JFXMedia platform interface.
  35  */
  36 public abstract class Platform {
  37     /*
  38      * Get an instance of the platform.
  39      */
  40     public static Platform getPlatformInstance() {
  41         throw new UnsupportedOperationException("Invalid platform class.");
  42     }
  43 
  44     /**
  45      * @return false if the platform cannot be loaded
  46      */
  47     public boolean loadPlatform() {
  48         return false;
  49     }
  50 
  51     public boolean canPlayContentType(String contentType) {
  52         String[] contentTypes = getSupportedContentTypes();
  53         if (contentTypes != null) {
  54             for (String type : contentTypes) {
  55                 if (type.equalsIgnoreCase(contentType)) {
  56                     return true;
  57                 }
  58             }
  59         }
  60         return false;
  61     }
  62     
  63     public boolean canPlayProtocol(String protocol) {
  64         String[] protocols = getSupportedProtocols();
  65         if (protocols != null) {
  66             for (String p : protocols) {
  67                 if (p.equalsIgnoreCase(protocol)) {
  68                     return true;
  69                 }
  70             }
  71         }
  72         return false;
  73     }
  74 
  75     // NB: This method returns only content which can actually be PLAYED. It
  76     // does not account for metadata being able to be parsed without the media
  77     // being able to be played.
  78     public String[] getSupportedContentTypes() {
  79         return new String[0];
  80     }
  81     
  82     public String[] getSupportedProtocols() {
  83         return new String[0];
  84     }
  85     
  86     // XXX javadoc
  87     public MetadataParser createMetadataParser(Locator source) {
  88         return null;
  89     }
  90 
  91     public abstract Media createMedia(Locator source);
  92 
  93     /**
  94      * Prepare for playing the specified media. If the media stream is unsupported
  95      * return null so other platforms may be used.
  96      */
  97     public abstract MediaPlayer createMediaPlayer(Locator source);
  98 }