Examples with Enumeration java.util.Enumeration used on opensource projects

Example 6 with Enumeration

use of java.util.Enumeration in project bigbluebutton by bigbluebutton.

the class SdpTools method sdpMediaProduct.

/** Costructs a new SessionDescriptor from a given SessionDescriptor
     * with olny media types and attribute values specified by a MediaDescriptor Vector.
     * <p> If no attribute is specified for a particular media, all present attributes are kept.
     * <br>If no attribute is present for a selected media, the media is kept (regardless any sepcified attributes).
     * @param sdp the given SessionDescriptor
     * @param m_descs Vector of MediaDescriptor with the selecting media types and attributes
     * @return this SessionDescriptor */
public static SessionDescriptor sdpMediaProduct(SessionDescriptor sdp, Vector m_descs) {
    Vector new_media = new Vector();
    if (m_descs != null) {
        for (Enumeration e = m_descs.elements(); e.hasMoreElements(); ) {
            MediaDescriptor spec_md = (MediaDescriptor) e.nextElement();
            //System.out.print("DEBUG: SDP: sdp_select: "+spec_md.toString());
            MediaDescriptor prev_md = sdp.getMediaDescriptor(spec_md.getMedia().getMedia());
            //System.out.print("DEBUG: SDP: sdp_origin: "+prev_md.toString());
            if (prev_md != null) {
                Vector spec_attributes = spec_md.getAttributes();
                Vector prev_attributes = prev_md.getAttributes();
                if (spec_attributes.size() == 0 || prev_attributes.size() == 0) {
                    new_media.addElement(prev_md);
                } else {
                    Vector new_attributes = new Vector();
                    for (Enumeration i = spec_attributes.elements(); i.hasMoreElements(); ) {
                        AttributeField spec_attr = (AttributeField) i.nextElement();
                        String spec_name = spec_attr.getAttributeName();
                        String spec_value = spec_attr.getAttributeValue();
                        for (Enumeration k = prev_attributes.elements(); k.hasMoreElements(); ) {
                            AttributeField prev_attr = (AttributeField) k.nextElement();
                            String prev_name = prev_attr.getAttributeName();
                            String prev_value = prev_attr.getAttributeValue();
                            if (prev_name.equals(spec_name) && prev_value.equalsIgnoreCase(spec_value)) {
                                new_attributes.addElement(prev_attr);
                                break;
                            }
                        }
                    }
                    if (new_attributes.size() > 0)
                        new_media.addElement(new MediaDescriptor(prev_md.getMedia(), prev_md.getConnection(), new_attributes));
                }
            }
        }
    }
    SessionDescriptor new_sdp = new SessionDescriptor(sdp);
    new_sdp.removeMediaDescriptors();
    new_sdp.addMediaDescriptors(new_media);
    return new_sdp;
}

Example 7 with Enumeration

use of java.util.Enumeration in project bigbluebutton by bigbluebutton.

the class SdpUtils method getFormatList.

private static String getFormatList(Vector mediaAttributes) {
    AttributeField mediaAttribute = null;
    String formatList = "";
    for (Enumeration attributeEnum = mediaAttributes.elements(); attributeEnum.hasMoreElements(); ) {
        mediaAttribute = (AttributeField) attributeEnum.nextElement();
        if (mediaAttribute.getAttributeName().equalsIgnoreCase(Codec.ATTRIBUTE_RTPMAP)) {
            if (!formatList.isEmpty()) {
                formatList += " ";
            }
            formatList += getPayloadIdFromAttribute(mediaAttribute);
        }
    }
    return formatList;
}

Example 8 with Enumeration

use of java.util.Enumeration in project bigbluebutton by bigbluebutton.

the class SdpUtils method makeMediaPayloadsNegotiation.

/** 
     * We must validate the existence of all remote "rtpmap" attributes 
     * on local SDP.
     * If some exist, we add it to newSdp negotiated SDP result.
     * 
     * @param localSdp
     * @param remoteSdp
     * 
     * @return Returns the new local descriptor as a result of media 
     *         payloads negotiation.
     */
public static SessionDescriptor makeMediaPayloadsNegotiation(SessionDescriptor localSdp, SessionDescriptor remoteSdp) {
    log.debug("makeMediaPayloadsNegotiation");
    SessionDescriptor newSdp = null;
    try {
        newSdp = new SessionDescriptor(remoteSdp.getOrigin(), remoteSdp.getSessionName(), localSdp.getConnection(), localSdp.getTime());
        Vector remoteDescriptors = remoteSdp.getMediaDescriptors();
        for (Enumeration descriptorsEnum = remoteDescriptors.elements(); descriptorsEnum.hasMoreElements(); ) {
            MediaDescriptor remoteDescriptor = (MediaDescriptor) descriptorsEnum.nextElement();
            MediaDescriptor localDescriptor = localSdp.getMediaDescriptor(remoteDescriptor.getMedia().getMedia());
            if (localDescriptor != null) {
                Vector remoteAttributes = remoteDescriptor.getAttributes(Codec.ATTRIBUTE_RTPMAP);
                Vector newSdpAttributes = new Vector();
                for (Enumeration attributesEnum = remoteAttributes.elements(); attributesEnum.hasMoreElements(); ) {
                    AttributeField remoteAttribute = (AttributeField) attributesEnum.nextElement();
                    String payloadId = getPayloadIdFromAttribute(remoteAttribute);
                    if ("".equals(payloadId)) {
                        log.error("Payload id not found on attribute: Name = [" + remoteAttribute.getAttributeName() + "], Value = [" + remoteAttribute.getAttributeValue() + "].");
                    } else if (findAttributeByPayloadId(remoteAttribute.getAttributeName(), payloadId, localDescriptor) != null) {
                        newSdpAttributes.add(remoteAttribute);
                    }
                }
                // Calculate the format list to be used on MediaDescriptor creation.
                String formatList = getFormatList(newSdpAttributes);
                for (Enumeration attributesEnum = newSdpAttributes.elements(); attributesEnum.hasMoreElements(); ) {
                    AttributeField mediaAttribute = (AttributeField) attributesEnum.nextElement();
                    if (newSdp.getMediaDescriptors().size() == 0) {
                        MediaField mf = new MediaField(localDescriptor.getMedia().getMedia(), localDescriptor.getMedia().getPort(), 0, localDescriptor.getMedia().getTransport(), formatList);
                        newSdp.addMediaDescriptor(new MediaDescriptor(mf, localDescriptor.getConnection()));
                    }
                    newSdp.getMediaDescriptor(localDescriptor.getMedia().getMedia()).addAttribute(mediaAttribute);
                }
            }
        }
    } catch (Exception exception) {
        log.error("Failure creating initial SDP: " + exception.toString());
    }
    return newSdp;
}

Example 9 with Enumeration

use of java.util.Enumeration in project bigbluebutton by bigbluebutton.

the class SdpUtils method findAttributeByPayloadId.

private static AttributeField findAttributeByPayloadId(String attributeName, String payloadId, MediaDescriptor mediaDescriptor) {
    AttributeField searchingMediaAttribute = null;
    //        log.debug("attributeName = [" + attributeName + "], payloadId = [" + payloadId + "].");
    Vector mediaAttributes = mediaDescriptor.getAttributes(attributeName);
    for (Enumeration attributesEnum = mediaAttributes.elements(); attributesEnum.hasMoreElements(); ) {
        AttributeField mediaAttribute = (AttributeField) attributesEnum.nextElement();
        if (getPayloadIdFromAttribute(mediaAttribute).equals(payloadId)) {
            searchingMediaAttribute = mediaAttribute;
            break;
        }
    }
    if (searchingMediaAttribute != null) {
    //            log.debug("Attribute found with name = [" + 
    //                    searchingMediaAttribute.getAttributeName() + "] and value = [" + 
    //                    searchingMediaAttribute.getAttributeValue() + "]." );
    } else {
    //            log.info("Attribute with name [" + attributeName + "] and payloadId [" + payloadId + "] was not found." );
    }
    return searchingMediaAttribute;
}

Example 10 with Enumeration

use of java.util.Enumeration in project bigbluebutton by bigbluebutton.

the class CodecAttributes method toString.

@Override
public String toString() {
    String toStringRet = "";
    if (codecEncodeAttributes.size() > 0) {
        toStringRet += "Encode attributes:\n";
    }
    for (Enumeration keysEnum = codecEncodeAttributes.keys(); keysEnum.hasMoreElements(); ) {
        String attributeName = (String) keysEnum.nextElement();
        toStringRet += "\t" + attributeName + "=" + codecEncodeAttributes.get(attributeName);
    }
    if (codecDecodeAttributes.size() > 0) {
        if (codecEncodeAttributes.size() > 0) {
            toStringRet += "\n";
        }
        toStringRet += "Decode attributes:\n";
    }
    for (Enumeration keysEnum = codecDecodeAttributes.keys(); keysEnum.hasMoreElements(); ) {
        String attributeName = (String) keysEnum.nextElement();
        toStringRet += "\t" + attributeName + "=" + codecDecodeAttributes.get(attributeName);
    }
    return toStringRet;
}