advertisementtutorial_java.htm

jxtx开发实例

     *
     * @return The hWArch value
     */
    public String getHWArch() {
        return hwarch;
    }

    /**
     * Gets the OSArch attribute of the AdvertisementTutorial object
     *
     * @return The OSArch value
     */
    public String getOSArch() {
        return osarch;
    }

    /**
     * Gets the hWVendor attribute of the AdvertisementTutorial object
     *
     * @return The hWVendor value
     */
    public String getHWVendor() {
        return hwvendor;
    }

    /**
     * returns the id of the device
     *
     * @return ID the device id
     */
    @Override
    public ID getID() {
        return (id == null ? null : id);
    }

    /**
     * Gets the IP attribute of the AdvertisementTutorial object
     *
     * @return The IP value
     */
    public String getIP() {
        return ip;
    }

    /**
     * Gets the name attribute of the AdvertisementTutorial object
     *
     * @return The name value
     */
    public String getName() {
        return name;
    }


    /**
     * Gets the OSName attribute of the AdvertisementTutorial object
     *
     * @return The OSName value
     */
    public String getOSName() {
        return osname;
    }

    /**
     * Gets the Software Inventory text element
     *
     * @return The Inventory value
     */
    public String getSWInventory() {
        if (inventory == null) {
            inventory = "";
        }
        return inventory;
    }

    /**
     * Gets the OSVersion attribute of the AdvertisementTutorial object
     *
     * @return The OSVersion value
     */
    public String getOSVersion() {
        return osversion;
    }

    /**
     * Process an individual element from the document.
     *
     * @param elem the element to be processed.
     * @return true if the element was recognized, otherwise false.
     */
    protected boolean handleElement(TextElement elem) {
        if (elem.getName().equals(idTag)) {
            try {
                URI id = new URI(elem.getTextValue());
                setID(IDFactory.fromURI(id));
            } catch (URISyntaxException badID) {
                throw new IllegalArgumentException("unknown ID format in advertisement: " +
                        elem.getTextValue());
            }
            catch (ClassCastException badID) {
                throw new IllegalArgumentException("Id is not a known id type: " +
                        elem.getTextValue());
            }
            return true;
        }
        if (elem.getName().equals(nameTag)) {
            setName(elem.getTextValue());
            return true;
        }
        if (elem.getName().equals(OSNameTag)) {
            setOSName(elem.getTextValue());
            return true;
        }
        if (elem.getName().equals(OSVersionTag)) {
            setOSVersion(elem.getTextValue());
            return true;
        }
        if (elem.getName().equals(OSarchTag)) {
            setOSArch(elem.getTextValue());
            return true;
        }
        if (elem.getName().equals(ipTag)) {
            setIP(elem.getTextValue());
            return true;
        }
        if (elem.getName().equals(hwarchTag)) {
            setHWArch(elem.getTextValue());
            return true;
        }
        if (elem.getName().equals(hwvendorTag)) {
            setHWVendor(elem.getTextValue());
            return true;
        }
        if (elem.getName().equals(swTag)) {
            setSWInventory(elem.getTextValue());
            return true;
        }
        // element was not handled
        return false;
    }

    /**
     * Intialize a System advertisement from a portion of a structured document.
     *
     * @param root document root
     */
    protected void initialize(Element root) {
        if (!TextElement.class.isInstance(root)) {
            throw new IllegalArgumentException(getClass().getName() +
                    " only supports TextElement");
        }
        TextElement doc = (TextElement) root;
        if (!doc.getName().equals(getAdvertisementType())) {
            throw new IllegalArgumentException("Could not construct : "
                    + getClass().getName() + "from doc containing a " +
                    doc.getName());
        }
        Enumeration elements = doc.getChildren();
        while (elements.hasMoreElements()) {
            TextElement elem = (TextElement) elements.nextElement();
            if (!handleElement(elem)) {
                LOG.warning("Unhandleded element \'" + elem.getName() + "\' in " +
                        doc.getName());
            }
        }
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public final String[] getIndexFields() {
        return fields;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public boolean equals(Object obj) {
        if (this == obj) {
            return true;
        }
        if (obj instanceof AdvertisementTutorial) {
            AdvertisementTutorial adv = (AdvertisementTutorial) obj;
            return getID().equals(adv.getID());
        }

        return false;
    }

    /**
     * {@inheritDoc}
     */
    public int compareTo(Object other) {
        return getID().toString().compareTo(other.toString());
    }

    /**
     * All messages have a type (in xml this is !doctype) which
     * identifies the message
     *
     * @return String "jxta:AdvertisementTutorial"
     */
    public static String getAdvertisementType() {
        return "jxta:AdvertisementTutorial";
    }

    /**
     * Instantiator
     */
    public static class Instantiator implements AdvertisementFactory.Instantiator {

        /**
         * Returns the identifying type of this Advertisement.
         *
         * @return String the type of advertisement
         */
        public String getAdvertisementType() {
            return AdvertisementTutorial.getAdvertisementType();
        }

        /**
         * Constructs an instance of <CODE>Advertisement</CODE> matching the
         * type specified by the <CODE>advertisementType</CODE> parameter.
         *
         * @return The instance of <CODE>Advertisement</CODE> or null if it
         *         could not be created.
         */
        public Advertisement newInstance() {
            return new AdvertisementTutorial();
        }

        /**
         * Constructs an instance of <CODE>Advertisement</CODE> matching the
         * type specified by the <CODE>advertisementType</CODE> parameter.
         *
         * @param root Specifies a portion of a StructuredDocument which will
         *             be converted into an Advertisement.
         * @return The instance of <CODE>Advertisement</CODE> or null if it
         *         could not be created.
         */
        public Advertisement newInstance(net.jxta.document.Element root) {
            return new AdvertisementTutorial(root);
        }
    }

    /**
     * Main method
     *
     * @param args command line arguments.  None defined
     */
    public static void main(String args[]) {

        // The following step is required and only need to be done once,
        // without this step the AdvertisementFactory has no means of
        // associating an advertisement name space with the proper obect
        // in this cast the AdvertisementTutorial
        AdvertisementFactory.registerAdvertisementInstance(
                AdvertisementTutorial.getAdvertisementType(),
                new AdvertisementTutorial.Instantiator());

        AdvertisementTutorial advTutorial = new AdvertisementTutorial();
        advTutorial.setID(ID.nullID);
        advTutorial.setName("AdvertisementTutorial");
        try {
            advTutorial.setIP(InetAddress.getLocalHost().getHostAddress());
        } catch (UnknownHostException ignored) {
            //ignored
        }
        advTutorial.setOSName(System.getProperty("os.name"));
        advTutorial.setOSVersion(System.getProperty("os.version"));
        advTutorial.setOSArch(System.getProperty("os.arch"));
        advTutorial.setHWArch(System.getProperty("HOSTTYPE",
                System.getProperty("os.arch")));
        advTutorial.setHWVendor(System.getProperty("java.vm.vendor"));
        System.out.println(advTutorial.toString());
    }
}
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