multimediacontentimpl.java

openwave公司的用于彩信开发的MM7协议实现java原代码,决对超值.

     * MimeMultipart, it returns the same. If the object was created from an
     * input stream containing a mime formatted message, it returns a MimeBodyPart
     * if the input stream contained a single part and MimeMultipart if the stream
     * contained a multipart message. If this object was created using any other
     * constructors, it always returns a MimeMultipart containing the SMIL and
     * the content parts. 
     *
     * @return A MimeMultipart object containing the SMIL and the media objects
     *         or a MimeBodyPart.
     * @exception MessagingException The MimeMultipart object cannot be created.
     * @exception InvalidSmilException A subclass of ContentException is thrown if the 
     *            SMIL cannot be parsed/synthesized.
     */
    public Object getContent() throws ContentException,
                                      MessagingException {
        try {
            if( smilBased && changed ) {
                createMultipart();
            }
            
            return content;
        } catch( ValidationException ve ) {
            throw new InvalidSmilException( "smil-validation-failed",
                                            ve );
        } catch( MarshalException me ) {
            throw new InvalidSmilException( "smil-creation-failed",
                                            me );
        }
    }

    /**
     * This method returns the slides contained in the object as a List.
     *
     * @return The list of Slide objects.
     */
    public List getSlides() {
        return slides;
    }

    /**
     * This method can be used to set the slides of the object.
     *
     * @param slides A list of Slide objects. The existing slides will be replaced
     *        by this list.
     */
    public void setSlides( List slides ) {
        changed = true;
        this.slides = slides;
    }

    /**
     * This method returns the slide indexed by an integer.
     *
     * @param slideNumber The index of the slide in the list.
     * @return The Slide object indexed by the slideNumber.
     * @exception IndexOutOfBoundsException The list does not contain that many elements.
     */
    public Slide getSlide( int slideNumber )
                           throws IndexOutOfBoundsException {
        return ( Slide ) slides.get( slideNumber );
    }

    /**
     * This method returns the number of slides in the object.
     *
     * @return The number of slides in the object.
     */
    public int getNumSlides() {
        return slides.size();
    }

    /**
     * This method is used to set the template for the slides in the object.
     *
     * @param template The template to be used for the slides in the object.
     */
    public void setTemplate( Template template ) {
        this.template = template;
    }

    /**
     * This method returns the Template associated with the slides in the object.
     *
     * @return The template associated with the slides in the object.
     */
    public Template getTemplate() {
        return template;
    }

    /**
     * This method is used to set the size of the viewport in which the SMIL
     * presentation is rendered.
     *
     * @param viewportSize The size of the viewport.
     */
    public void setViewportSize( Dimension viewportSize ) {
        this.viewportSize = viewportSize;
    }

    /**
     * This method returns the viewport size.
     *
     * @return The size of the viewport.
     */
    public Dimension getViewportSize() {
        return viewportSize;
    }

    /**
     * This method converts the content into a JavaMail MimeMultipart object.
     * It also initializes the multipart member of this class and updates
     * the changed flag to false.
     */
    private void createMultipart() throws MessagingException,
                                          ValidationException,
                                          MarshalException {
        changed = false;
        if( template == null ) {
            template = TemplateFactory.getInstance().getTemplate( null );
        }
        MimeMultipart multipart = new MimeMultipart( "related" );

        Smil smil = new Smil();
        Body body = new Body();
        Head head = new Head();
        Layout layout = new Layout();
        RootLayout rootLayout = new RootLayout();
        rootLayout.setWidth( "100%" );
        rootLayout.setHeight( "100%" );
        if( viewportSize != null ) {
            if( viewportSize.getWidth() > 0 ) {
                rootLayout.setWidth( String.valueOf( viewportSize.getWidth() ) );
            }
            if( viewportSize.getHeight() > 0 ) {
                rootLayout.setHeight( String.valueOf( viewportSize.getHeight() ) );
            }
        }
        layout.setRootLayout( rootLayout );
        head.setLayout( layout );
        smil.setHead( head );
        smil.setBody( body );

        List fileList = new LinkedList();
        ListIterator iterator = slides.listIterator();
        while( iterator.hasNext() ) {
            Slide slide = ( Slide ) iterator.next();
            Par par = new Par();
            int duration = slide.getDuration();
            if( duration > 0 ) {
                par.setDur( String.valueOf( duration ) + "ms" );
            }
            body.addPar( par );

            Text text = slide.getText();
            if( text != null ) {
                // check if there is a file name associated with the part
                String textContentID = addMediaToMultipart( multipart, text );
                com.openwave.mms.content.smil.Text textElement = new com.openwave.mms.content.smil.Text();
                textElement.setSrc( "cid:" + textContentID );
                int begin = text.getBegin();
                if( begin > 0 ) {
                    textElement.setBegin( String.valueOf( begin ) );
                }
                int end = text.getEnd();
                if( end > 0 ) {
                    textElement.setEnd( String.valueOf( end ) );
                }
                textElement.setAlt( text.getAlt() );
                RegionAttributes textAttributes = template.getTextAttributes();
                addRegion( "Text", layout, textAttributes );
                textElement.setRegion( "Text" );
                par.setText( textElement );
            }

            Video video = slide.getVideo();
            if( video != null ) {
                // check if there is a file name associated with the part
                String videoContentID = addMediaToMultipart( multipart, video );
                com.openwave.mms.content.smil.Video videoElement =
                    new com.openwave.mms.content.smil.Video();
                videoElement.setSrc( "cid:" + videoContentID );
                int begin = video.getBegin();
                if( begin > 0 ) {
                    videoElement.setBegin( String.valueOf( begin ) );
                }
                int end = video.getEnd();
                if( end > 0 ) {
                    videoElement.setEnd( String.valueOf( end ) );
                }
                videoElement.setAlt( video.getAlt() );
                //video and image share the Image smil region
                RegionAttributes imageAttributes = template.getImageAttributes();
                addRegion( "Image", layout, imageAttributes );
                videoElement.setRegion( "Image" );
                par.setVideo( videoElement );
            }

            Image image = slide.getImage();
            if( image != null ) {
                // check if there is a file name associated with the part
                String imageContentID = addMediaToMultipart( multipart, image );
                Img imgElement = new Img();
                imgElement.setSrc( "cid:" + imageContentID );
                int begin = image.getBegin();
                if( begin > 0 ) {
                    imgElement.setBegin( String.valueOf( begin ) );
                }
                int end = image.getEnd();
                if( end > 0 ) {
                    imgElement.setEnd( String.valueOf( end ) );
                }
                imgElement.setAlt( image.getAlt() );
                RegionAttributes imageAttributes = template.getImageAttributes();
                addRegion( "Image", layout, imageAttributes );
                imgElement.setRegion( "Image" );
                par.setImg( imgElement );
            }

            Audio audio = slide.getAudio();
            if( audio != null ) {
                // check if there is a file name associated with the part
                String audioContentID = addMediaToMultipart( multipart, audio );
                com.openwave.mms.content.smil.Audio audioElement = new com.openwave.mms.content.smil.Audio();
                audioElement.setSrc( "cid:" + audioContentID );
                int begin = audio.getBegin();
                if( begin > 0 ) {
                    audioElement.setBegin( String.valueOf( begin ) );
                }
                int end = audio.getEnd();
                if( end > 0 ) {
                    audioElement.setEnd( String.valueOf( end ) );
                }
                audioElement.setAlt( audio.getAlt() );
                par.setAudio( audioElement );
            }
        }

        StringWriter writer = new StringWriter();
        smil.marshal( writer );
        MimeBodyPart smilPart = new MimeBodyPart();
        smilPart.setText( writer.toString() );
        smilPart.setHeader( "Content-Type", "application/smil" );
        String smilContentID = "<mms.smil>";
        smilPart.setHeader( "Content-ID", smilContentID );
        multipart.addBodyPart( smilPart );
        content = multipart;
    }

    private BodyPart searchForSmilPart( MimeMultipart multipart )
                                        throws MessagingException {

        for( int i = 0; i < multipart.getCount(); i++ ) {

            BodyPart part = multipart.getBodyPart( i );
            try {
                ContentType contentType = new ContentType( part.getContentType() );
                if( contentType.getBaseType().equals( "application/smil" ) ) {
                    return part;
                }
            } catch( ParseException pe ) {
                return null;
            }
        }

        return null;
    }

    private void createSlidesFromSmil( BodyPart smilPart,
                                       MimeMultipart multipart )
                                       throws IOException,
                                              MarshalException,
                                              ValidationException,
                                              MessagingException,
                                              ContentException {
        Smil smil = Smil.unmarshal( new InputStreamReader( smilPart.getInputStream() ) );

        createTemplate(smil);

        for( int i = 0; i < smil.getBody().getParCount(); i++ ) {

            Par par = smil.getBody().getPar( i );

            Slide slide = SlideFactory.getInstance().newSlide();
            slide.setDuration( par.getDur() );

            com.openwave.mms.content.smil.Text text = par.getText();
            if( text != null ) {
                BodyPart textPart = getReferencedPart( text.getSrc(),
                                                       multipart );
                if( textPart != null ) {
                    addText( slide, new Text( textPart ), text );
                }
            }

            com.openwave.mms.content.smil.Audio audio = par.getAudio();
            if( audio != null ) {
                BodyPart audioPart = getReferencedPart( audio.getSrc(),
                                                        multipart );
                if( audioPart != null ) {
                    addAudio( slide, new Audio( audioPart ), audio );
                }
            }

            com.openwave.mms.content.smil.Img image = par.getImg();
            if( image != null ) {
                BodyPart imagePart = getReferencedPart( image.getSrc(),
                                                        multipart );
                if( imagePart != null ) {
                    addImage( slide, new Image( imagePart ), image );
                }
            }

            com.openwave.mms.content.smil.Video video = par.getVideo();
            if( video != null ) {
                BodyPart videoPart = getReferencedPart( video.getSrc(),
                                                        multipart );
                if( videoPart != null ) {
                    addVideo( slide, new Video( videoPart ), video );
                }
            }

            slides.add( slide );
        }
    }

    private void createFromSmilFile( File smilFile )
                                     throws FileNotFoundException,
                                            ContentException,
                                            MessagingException,
                                            MarshalException,
                                            ValidationException,
                                            IOException {
        Smil smil = Smil.unmarshal( new FileReader( smilFile ) );

        createTemplate(smil);

        for( int i = 0; i < smil.getBody().getParCount(); i++ ) {

            Par par = smil.getBody().getPar( i );

            Slide slide = SlideFactory.getInstance().newSlide();
            slide.setDuration( par.getDur() );

            com.openwave.mms.content.smil.Text text = par.getText();
            if( text != null ) {
                Text textContent = new Text( new File( smilFile.getParent(), text.getSrc() ),
                                             MimeUtility.mimeCharset(
                                                 MimeUtility.getDefaultJavaCharset()
                                             )
                                           );
                addText( slide, textContent, text );
            }

            com.openwave.mms.content.smil.Audio audio = par.getAudio();
            if( audio != null ) {
                Audio audioContent = new Audio( new File( smilFile.getParent(),
                                                          audio.getSrc()
                                                        )
                                              );
                addAudio( slide, audioContent, audio );
            }

            com.openwave.mms.content.smil.Img image = par.getImg();
            if( image != null ) {
                Image imageContent = new Image( new File( smilFile.getParent(),
                                                          image.getSrc()
                                                        )
                                              );
                addImage( slide, imageContent, image );
            }

            com.openwave.mms.content.smil.Video video = par.getVideo();
            if( video != null ) {
                Video videoContent = new Video( new File( smilFile.getParent(),