dialogmessage.java

用jxse开发的一个p2p通讯软件 有聊天 文件共享 视频3大功能

    /**
     * Changes the PeerGroup name of the originator of this DialogMessage object
     *
     * @param groupName the new PeerGroup name
     */
    public void setGroupName(String groupName) {
        this.groupName = groupName != null ? groupName : DEFAULT_GROUP;
    }

    /**
     * Get the command encapsulated by this DialogMessage object
     *
     * @return the command encapsulated by this DialogMessage object
     */
    public String getCommand() {
        return this.command;
    }

    /**
     * Changes the  command encapsulated by this DialogMessage object
     *
     * @param command the new command encapsulated by this DialogMessage object
     */
    public void setCommand(String command) {
        this.command = command;
    }

    /**
     * Get the label encapsulated by this DialogMessage object
     *
     * @return the label encapsulated by this DialogMessage object
     */
    public String getLabel() {
        return this.label;
    }

    /**
     * Changes the label encapsulated by this DialogMessage object
     *
     * @param label the new label encapsulated by this DialogMessage object
     */
    public void setLabel(String label) {
        this.label = label;
    }

    /**
     * Get the time at which this DialogMessage object was created
     *
     * @return the timestamp of this DialogMessage object
     */
    public Date getTimeStamp() {
        return this.timeStamp;
    }

    public MessageElement addMessageElement(String key, MessageElement me) {
        MessageElement ome = null;

        if (key != null && me != null) {
            if (this.elements == null) {
                this.elements = new HashMap<String, MessageElement>();
            }
            ome = this.elements.put(key, me);
        }

        return ome;
    }

    public void addMessageElements(Map<String, MessageElement> me) {
        String key;

        if (me == null) {
            return;
        }

        for (String s : me.keySet()) {
            key = s;

            addMessageElement(key, me.get(key));
        }
    }

    public MessageElement getMessageElement(String key) {
        return this.elements != null ?
                this.elements.get(key) : null;
    }

    public Map<String, MessageElement> getMessageElements() {
        return this.elements;
    }

    public Iterator getMessageElementIterator() {
        return this.elements != null ?
                this.elements.keySet().iterator() :
                Collections.EMPTY_MAP.keySet().iterator();
    }

    public Message toMessage(DialogMessage template) {
        Message msg = new Message();

        overlay(template);
        setLabel(null);

        /// add the relevant messge elements
        String s = getHtmlMessage();

        if (s != null) {
            msg.addMessageElement(new StringMessageElement(keys.message,
                    s.trim(), null));
            if (plainTextMessage == null) {
                String plainText = Text.replace(s.trim(), Text.MARKUP, Text.EMPTY).trim();
                msg.addMessageElement(new StringMessageElement(keys.legacyMessage,
                        plainText,
                        null));
            } else {
                msg.addMessageElement(new StringMessageElement(keys.legacyMessage, plainTextMessage, null));
            }
        }

        s = getOriginator();

        if (s != null) {
            msg.addMessageElement(new StringMessageElement(keys.originator,
                    s, null));
        }

        s = getGroupId();

        if (s != null) {
            msg.addMessageElement(new StringMessageElement(keys.groupId,
                    s, null));
        }

        s = getGroupName();

        if (s != null) {
            msg.addMessageElement(new StringMessageElement(keys.groupName,
                    s, null));
        }

        s = getCommand();

        if (s != null) {
            msg.addMessageElement(new StringMessageElement(keys.command,
                    s, null));
        }

        // xxx: msg.addMessageElement
        String key;

        for (Iterator mei = getMessageElementIterator();
             mei.hasNext();) {
            key = (String) mei.next();

            msg.addMessageElement(getMessageElement(key));
        }

        return msg;
    }

    /**
     * Get a string representation of this DialogMessage object
     *
     * @return a string representation of this DialogMessage object
     */
    public String toString() {
        StringBuffer sb = new StringBuffer();

        sb.append("originator: ").append(this.originator).append(NEW_LINE);
        sb.append("htmlMessage: ").append(this.htmlMessage).append(NEW_LINE);
        sb.append("groupId: ").append(this.groupId).append(NEW_LINE);
        sb.append("groupName: ").append(this.groupName).append(NEW_LINE);
        sb.append("command: ").append(this.command).append(NEW_LINE);
        sb.append("label: ").append(this.label).append(NEW_LINE);
        sb.append("timeStamp: ").append(this.timeStamp).append(NEW_LINE);
        sb.append("keys: ").append(this.keys.originator).append(NEW_LINE);

        String k;

        for (Iterator ei = getMessageElementIterator(); ei.hasNext();) {
            k = (String) ei.next();

            sb.append("element: ").append(k).append(NEW_LINE);
            sb.append(getMessageElement(k).toString()).append(NEW_LINE);
        }

        return sb.toString();
    }

    /**
     * Create a copy of this DialogMessage object
     *
     * @return the newly created copy of this DialogMessage object
     */
    @SuppressWarnings({"CloneDoesntCallSuperClone"})
    public Object clone() {
        return new DialogMessage(this);
    }

    /**
     * Get the content of the element with the indicated tag int the
     * Message object msg.
     *
     * @param msg the Message  containing the desired tag
     * @param tag the desired tag
     */
    protected static String getElement(Message msg, String tag) {
        return getElement(msg, tag, null);
    }

    /**
     * Get the content of the element with the indicated tag int the
     * Message object msg.
     *
     * @param msg          the Message  containing the desired tag
     * @param tag          the desired tag
     * @param defaultValue the value to be returned if the desired
     *                     tag was not found
     */
    protected static String getElement(Message msg, String tag,
                                       String defaultValue) {
        MessageElement me = msg.getMessageElement(tag);

        return me != null ? me.toString() : defaultValue;
    }

    protected void setKeys(DialogKeys keys) {
        this.keys = keys;
    }

    /**
     * Make sure that all the relevant tags  of the DialogMessage
     * object are set to sensible default values
     *
     * @param dialogMessage the DialogMessage which to check for sensible default
     *                      values
     */
    protected void overlay(DialogMessage dialogMessage) {
        String s = getOriginator();

        // check that orignator is set
        if (s == null ||
                s.trim().length() == 0 ||
                s.equals(DEFAULT_ORIGINATOR)) {
            setOriginator(dialogMessage.getOriginator());
        }

        // check that there is a useful htmlMessage
        s = getHtmlMessage();

        if (s == null ||
                s.trim().length() == 0) {
            setHtmlMessage(dialogMessage.getHtmlMessage());
        }

        // check that the PeerGroup id is set
        s = getGroupId();

        if (s == null ||
                s.trim().length() == 0 ||
                s.equals(DEFAULT_GROUP_ID)) {
            setGroupId(dialogMessage.getGroupId());
        }

        // check that the group name is set
        s = getGroupName();

        if (s == null ||
                s.trim().length() == 0 ||
                s.equals(DEFAULT_GROUP)) {
            setGroupName(dialogMessage.getGroupName());
        }

        // check that the command is set
        s = getCommand();

        if (s == null ||
                s.trim().length() == 0) {
            setCommand(dialogMessage.getCommand());
        }

        // check that the label is set
        s = getLabel();

        if (s == null ||
                s.trim().length() == 0) {
            setLabel(dialogMessage.getLabel());
        }
    }

    /**
     * Changes the time this DialogMessage was created
     *
     * @param timeStamp the new timestamp  of this DialogMessage object
     */
    private void setTimeStamp(Date timeStamp) {
        this.timeStamp = timeStamp;
    }
}