/**
 * get all chatroom attributes
 *
 * @param chatroomId chatroom ID
 * @param callback completion callback
 */
void getAllAttributes(String chatroomId, IChatroomAttributesCallback callback);

interface IChatroomAttributesCallback {
    /**
     * completion callback
     *
     * @param errorCode JErrorCode.NONE indicates success
     * @param attributes retrieved attribute list
     */
    void onComplete(int errorCode, Map<String, String> attributes);
}

JIM.getInstance().getChatroomManager().getAllAttributes("chatroomId1", new IChatroomManager.IChatroomAttributesCallback() {
    @Override
    public void onComplete(int errorCode, Map<String, String> attributes) {

    }
});